* [PATCH v3 01/37] treewide: Constify most dma_map_ops structures
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 04/37] treewide: Consolidate get_dma_ops() implementations Bart Van Assche
` (35 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Benjamin Herrenschmidt, Boris Ostrovsky, David Woodhouse,
Juergen Gross, H . Peter Anvin, Ingo Molnar,
linux-arch-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, Russell King,
x86-DgEjT+Ai2ygdnm+yROfE0A
Most dma_map_ops structures are never modified. Constify these
structures such that these can be write-protected. This patch
has been generated as follows:
git grep -l 'struct dma_map_ops' |
xargs -d\\n sed -i \
-e 's/struct dma_map_ops/const struct dma_map_ops/g' \
-e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \
-e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \
-e 's/const const struct dma_map_ops /const struct dma_map_ops /g';
sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \
$(git grep -l 'struct dma_map_ops intel_dma_ops');
sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \
$(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc);
sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \
-e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \
-e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \
drivers/pci/host/*.c
sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c
sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c
sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Reviewed-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Cc: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Cc: Boris Ostrovsky <boris.ostrovsky-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Cc: Juergen Gross <jgross-IBi9RG/b67k@public.gmane.org>
Cc: H. Peter Anvin <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>
Cc: x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
---
arch/alpha/include/asm/dma-mapping.h | 4 +--
arch/alpha/kernel/pci-noop.c | 4 +--
arch/alpha/kernel/pci_iommu.c | 4 +--
arch/arc/include/asm/dma-mapping.h | 4 +--
arch/arc/mm/dma.c | 2 +-
arch/arm/common/dmabounce.c | 2 +-
arch/arm/include/asm/device.h | 2 +-
arch/arm/include/asm/dma-mapping.h | 10 +++---
arch/arm/mm/dma-mapping.c | 22 ++++++------
arch/arm/xen/mm.c | 4 +--
arch/arm64/include/asm/device.h | 2 +-
arch/arm64/include/asm/dma-mapping.h | 6 ++--
arch/arm64/mm/dma-mapping.c | 6 ++--
arch/avr32/include/asm/dma-mapping.h | 4 +--
arch/avr32/mm/dma-coherent.c | 2 +-
arch/blackfin/include/asm/dma-mapping.h | 4 +--
arch/blackfin/kernel/dma-mapping.c | 2 +-
arch/c6x/include/asm/dma-mapping.h | 4 +--
arch/c6x/kernel/dma.c | 2 +-
arch/cris/arch-v32/drivers/pci/dma.c | 2 +-
arch/cris/include/asm/dma-mapping.h | 6 ++--
arch/frv/include/asm/dma-mapping.h | 4 +--
arch/frv/mb93090-mb00/pci-dma-nommu.c | 2 +-
arch/frv/mb93090-mb00/pci-dma.c | 2 +-
arch/h8300/include/asm/dma-mapping.h | 4 +--
arch/h8300/kernel/dma.c | 2 +-
arch/hexagon/include/asm/dma-mapping.h | 4 +--
arch/hexagon/kernel/dma.c | 4 +--
arch/ia64/hp/common/hwsw_iommu.c | 4 +--
arch/ia64/hp/common/sba_iommu.c | 4 +--
arch/ia64/include/asm/dma-mapping.h | 2 +-
arch/ia64/include/asm/machvec.h | 4 +--
arch/ia64/kernel/dma-mapping.c | 4 +--
arch/ia64/kernel/pci-dma.c | 10 +++---
arch/ia64/kernel/pci-swiotlb.c | 2 +-
arch/m32r/include/asm/device.h | 2 +-
arch/m32r/include/asm/dma-mapping.h | 2 +-
arch/m68k/include/asm/dma-mapping.h | 4 +--
arch/m68k/kernel/dma.c | 2 +-
arch/metag/include/asm/dma-mapping.h | 4 +--
arch/metag/kernel/dma.c | 2 +-
arch/microblaze/include/asm/dma-mapping.h | 4 +--
arch/microblaze/kernel/dma.c | 2 +-
arch/mips/cavium-octeon/dma-octeon.c | 4 +--
arch/mips/include/asm/device.h | 2 +-
arch/mips/include/asm/dma-mapping.h | 4 +--
.../include/asm/mach-cavium-octeon/dma-coherence.h | 2 +-
arch/mips/include/asm/netlogic/common.h | 2 +-
arch/mips/loongson64/common/dma-swiotlb.c | 2 +-
arch/mips/mm/dma-default.c | 4 +--
arch/mips/netlogic/common/nlm-dma.c | 2 +-
arch/mn10300/include/asm/dma-mapping.h | 4 +--
arch/mn10300/mm/dma-alloc.c | 2 +-
arch/nios2/include/asm/dma-mapping.h | 4 +--
arch/nios2/mm/dma-mapping.c | 2 +-
arch/openrisc/include/asm/dma-mapping.h | 4 +--
arch/openrisc/kernel/dma.c | 2 +-
arch/parisc/include/asm/dma-mapping.h | 8 ++---
arch/parisc/kernel/drivers.c | 2 +-
arch/parisc/kernel/pci-dma.c | 4 +--
arch/powerpc/include/asm/device.h | 2 +-
arch/powerpc/include/asm/dma-mapping.h | 6 ++--
arch/powerpc/include/asm/pci.h | 4 +--
arch/powerpc/include/asm/swiotlb.h | 2 +-
arch/powerpc/kernel/dma-swiotlb.c | 2 +-
arch/powerpc/kernel/dma.c | 6 ++--
arch/powerpc/kernel/pci-common.c | 6 ++--
arch/powerpc/platforms/cell/iommu.c | 4 +--
arch/powerpc/platforms/powernv/npu-dma.c | 2 +-
arch/powerpc/platforms/ps3/system-bus.c | 4 +--
arch/powerpc/platforms/pseries/ibmebus.c | 2 +-
arch/powerpc/platforms/pseries/vio.c | 2 +-
arch/s390/include/asm/device.h | 2 +-
arch/s390/include/asm/dma-mapping.h | 4 +--
arch/s390/pci/pci_dma.c | 2 +-
arch/sh/include/asm/dma-mapping.h | 4 +--
arch/sh/kernel/dma-nommu.c | 2 +-
arch/sh/mm/consistent.c | 2 +-
arch/sparc/include/asm/dma-mapping.h | 8 ++---
arch/sparc/kernel/iommu.c | 4 +--
arch/sparc/kernel/ioport.c | 8 ++---
arch/sparc/kernel/pci_sun4v.c | 2 +-
arch/tile/include/asm/device.h | 2 +-
arch/tile/include/asm/dma-mapping.h | 12 +++----
arch/tile/kernel/pci-dma.c | 24 ++++++-------
arch/unicore32/include/asm/dma-mapping.h | 4 +--
arch/unicore32/mm/dma-swiotlb.c | 2 +-
arch/x86/include/asm/device.h | 4 +--
arch/x86/include/asm/dma-mapping.h | 4 +--
arch/x86/include/asm/iommu.h | 2 +-
arch/x86/kernel/amd_gart_64.c | 2 +-
arch/x86/kernel/pci-calgary_64.c | 2 +-
arch/x86/kernel/pci-dma.c | 4 +--
arch/x86/kernel/pci-nommu.c | 2 +-
arch/x86/kernel/pci-swiotlb.c | 2 +-
arch/x86/pci/sta2x11-fixup.c | 2 +-
arch/x86/xen/pci-swiotlb-xen.c | 2 +-
arch/xtensa/include/asm/device.h | 2 +-
arch/xtensa/include/asm/dma-mapping.h | 4 +--
arch/xtensa/kernel/pci-dma.c | 2 +-
drivers/iommu/amd_iommu.c | 4 +--
drivers/misc/mic/bus/mic_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.c | 2 +-
drivers/misc/mic/bus/scif_bus.h | 2 +-
drivers/misc/mic/bus/vop_bus.c | 2 +-
drivers/misc/mic/host/mic_boot.c | 4 +--
drivers/parisc/ccio-dma.c | 2 +-
drivers/parisc/sba_iommu.c | 2 +-
drivers/pci/host/vmd.c | 2 +-
include/linux/dma-mapping.h | 42 +++++++++++-----------
include/linux/mic_bus.h | 2 +-
include/xen/arm/hypervisor.h | 2 +-
lib/dma-noop.c | 2 +-
113 files changed, 227 insertions(+), 227 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index c63b6ac19ee5..d3480562411d 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _ALPHA_DMA_MAPPING_H
#define _ALPHA_DMA_MAPPING_H
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index bb152e21e5ae..ffbdb3fb672f 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -128,7 +128,7 @@ static int alpha_noop_supported(struct device *dev, u64 mask)
return mask < 0x00ffffffUL ? 0 : 1;
}
-struct dma_map_ops alpha_noop_ops = {
+const struct dma_map_ops alpha_noop_ops = {
.alloc = alpha_noop_alloc_coherent,
.free = dma_noop_free_coherent,
.map_page = dma_noop_map_page,
@@ -137,5 +137,5 @@ struct dma_map_ops alpha_noop_ops = {
.dma_supported = alpha_noop_supported,
};
-struct dma_map_ops *dma_ops = &alpha_noop_ops;
+const struct dma_map_ops *dma_ops = &alpha_noop_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 451fc9cdd323..7fd2329038a3 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -939,7 +939,7 @@ static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr)
return dma_addr == 0;
}
-struct dma_map_ops alpha_pci_ops = {
+const struct dma_map_ops alpha_pci_ops = {
.alloc = alpha_pci_alloc_coherent,
.free = alpha_pci_free_coherent,
.map_page = alpha_pci_map_page,
@@ -950,5 +950,5 @@ struct dma_map_ops alpha_pci_ops = {
.dma_supported = alpha_pci_supported,
};
-struct dma_map_ops *dma_ops = &alpha_pci_ops;
+const struct dma_map_ops *dma_ops = &alpha_pci_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index 266f11c9bd59..fdff3aa60052 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -18,9 +18,9 @@
#include <plat/dma.h>
#endif
-extern struct dma_map_ops arc_dma_ops;
+extern const struct dma_map_ops arc_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &arc_dma_ops;
}
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 08450a1a5b5f..2a07e6ecafbd 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -218,7 +218,7 @@ static int arc_dma_supported(struct device *dev, u64 dma_mask)
return dma_mask == DMA_BIT_MASK(32);
}
-struct dma_map_ops arc_dma_ops = {
+const struct dma_map_ops arc_dma_ops = {
.alloc = arc_dma_alloc,
.free = arc_dma_free,
.mmap = arc_dma_mmap,
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 75055df1cda3..9b1b7be2ec0e 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -452,7 +452,7 @@ static int dmabounce_set_mask(struct device *dev, u64 dma_mask)
return arm_dma_ops.set_dma_mask(dev, dma_mask);
}
-static struct dma_map_ops dmabounce_ops = {
+static const struct dma_map_ops dmabounce_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
.mmap = arm_dma_mmap,
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index 4111592f0130..d8a572f9c187 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -7,7 +7,7 @@
#define ASMARM_DEVICE_H
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMABOUNCE
struct dmabounce_device_info *dmabounce;
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index bf02dbd9ccda..1aabd781306f 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -13,17 +13,17 @@
#include <asm/xen/hypervisor.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops arm_dma_ops;
-extern struct dma_map_ops arm_coherent_dma_ops;
+extern const struct dma_map_ops arm_dma_ops;
+extern const struct dma_map_ops arm_coherent_dma_ops;
-static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
return &arm_dma_ops;
}
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (xen_initial_domain())
return xen_dma_ops;
@@ -31,7 +31,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return __generic_dma_ops(dev);
}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
BUG_ON(!dev);
dev->archdata.dma_ops = ops;
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ab7710002ba6..d26fe1a35687 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -180,7 +180,7 @@ static void arm_dma_sync_single_for_device(struct device *dev,
__dma_page_cpu_to_dev(page, offset, size, dir);
}
-struct dma_map_ops arm_dma_ops = {
+const struct dma_map_ops arm_dma_ops = {
.alloc = arm_dma_alloc,
.free = arm_dma_free,
.mmap = arm_dma_mmap,
@@ -204,7 +204,7 @@ static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma,
void *cpu_addr, dma_addr_t dma_addr, size_t size,
unsigned long attrs);
-struct dma_map_ops arm_coherent_dma_ops = {
+const struct dma_map_ops arm_coherent_dma_ops = {
.alloc = arm_coherent_dma_alloc,
.free = arm_coherent_dma_free,
.mmap = arm_coherent_dma_mmap,
@@ -1067,7 +1067,7 @@ static void __dma_page_dev_to_cpu(struct page *page, unsigned long off,
int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i, j;
@@ -1101,7 +1101,7 @@ int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -1120,7 +1120,7 @@ void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -1139,7 +1139,7 @@ void arm_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
struct scatterlist *s;
int i;
@@ -2099,7 +2099,7 @@ static void arm_iommu_sync_single_for_device(struct device *dev,
__dma_page_cpu_to_dev(page, offset, size, dir);
}
-struct dma_map_ops iommu_ops = {
+const struct dma_map_ops iommu_ops = {
.alloc = arm_iommu_alloc_attrs,
.free = arm_iommu_free_attrs,
.mmap = arm_iommu_mmap_attrs,
@@ -2119,7 +2119,7 @@ struct dma_map_ops iommu_ops = {
.unmap_resource = arm_iommu_unmap_resource,
};
-struct dma_map_ops iommu_coherent_ops = {
+const struct dma_map_ops iommu_coherent_ops = {
.alloc = arm_coherent_iommu_alloc_attrs,
.free = arm_coherent_iommu_free_attrs,
.mmap = arm_coherent_iommu_mmap_attrs,
@@ -2319,7 +2319,7 @@ void arm_iommu_detach_device(struct device *dev)
}
EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
-static struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
+static const struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
{
return coherent ? &iommu_coherent_ops : &iommu_ops;
}
@@ -2374,7 +2374,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev) { }
#endif /* CONFIG_ARM_DMA_USE_IOMMU */
-static struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
+static const struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
{
return coherent ? &arm_coherent_dma_ops : &arm_dma_ops;
}
@@ -2382,7 +2382,7 @@ static struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
const struct iommu_ops *iommu, bool coherent)
{
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
dev->archdata.dma_coherent = coherent;
if (arm_setup_iommu_dma_ops(dev, dma_base, size, iommu))
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index bd62d94f8ac5..ce18c91b50a1 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -182,10 +182,10 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
}
EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region);
-struct dma_map_ops *xen_dma_ops;
+const struct dma_map_ops *xen_dma_ops;
EXPORT_SYMBOL(xen_dma_ops);
-static struct dma_map_ops xen_swiotlb_dma_ops = {
+static const struct dma_map_ops xen_swiotlb_dma_ops = {
.alloc = xen_swiotlb_alloc_coherent,
.free = xen_swiotlb_free_coherent,
.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
diff --git a/arch/arm64/include/asm/device.h b/arch/arm64/include/asm/device.h
index 243ef256b8c9..00c678cc31e1 100644
--- a/arch/arm64/include/asm/device.h
+++ b/arch/arm64/include/asm/device.h
@@ -17,7 +17,7 @@
#define __ASM_DEVICE_H
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index ccea82c2b089..1fedb43be712 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -25,9 +25,9 @@
#include <asm/xen/hypervisor.h>
#define DMA_ERROR_CODE (~(dma_addr_t)0)
-extern struct dma_map_ops dummy_dma_ops;
+extern const struct dma_map_ops dummy_dma_ops;
-static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
@@ -39,7 +39,7 @@ static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops;
}
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (xen_initial_domain())
return xen_dma_ops;
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index e04082700bb1..bcef6368d48f 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -352,7 +352,7 @@ static int __swiotlb_dma_supported(struct device *hwdev, u64 mask)
return 1;
}
-static struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops swiotlb_dma_ops = {
.alloc = __dma_alloc,
.free = __dma_free,
.mmap = __swiotlb_mmap,
@@ -505,7 +505,7 @@ static int __dummy_dma_supported(struct device *hwdev, u64 mask)
return 0;
}
-struct dma_map_ops dummy_dma_ops = {
+const struct dma_map_ops dummy_dma_ops = {
.alloc = __dummy_alloc,
.free = __dummy_free,
.mmap = __dummy_mmap,
@@ -784,7 +784,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
}
-static struct dma_map_ops iommu_dma_ops = {
+static const struct dma_map_ops iommu_dma_ops = {
.alloc = __iommu_alloc_attrs,
.free = __iommu_free_attrs,
.mmap = __iommu_mmap_attrs,
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index 1115f2a645d1..b2b43c0e0774 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -4,9 +4,9 @@
extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
int direction);
-extern struct dma_map_ops avr32_dma_ops;
+extern const struct dma_map_ops avr32_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &avr32_dma_ops;
}
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index 54534e5d0781..555222d4f414 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -191,7 +191,7 @@ static void avr32_dma_sync_sg_for_device(struct device *dev,
dma_cache_sync(dev, sg_virt(sg), sg->length, direction);
}
-struct dma_map_ops avr32_dma_ops = {
+const struct dma_map_ops avr32_dma_ops = {
.alloc = avr32_dma_alloc,
.free = avr32_dma_free,
.map_page = avr32_dma_map_page,
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 3490570aaa82..320fb50fbd41 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -36,9 +36,9 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
__dma_sync(addr, size, dir);
}
-extern struct dma_map_ops bfin_dma_ops;
+extern const struct dma_map_ops bfin_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &bfin_dma_ops;
}
diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c
index a27a74a18fb0..477bb29a7987 100644
--- a/arch/blackfin/kernel/dma-mapping.c
+++ b/arch/blackfin/kernel/dma-mapping.c
@@ -159,7 +159,7 @@ static inline void bfin_dma_sync_single_for_device(struct device *dev,
_dma_sync(handle, size, dir);
}
-struct dma_map_ops bfin_dma_ops = {
+const struct dma_map_ops bfin_dma_ops = {
.alloc = bfin_dma_alloc,
.free = bfin_dma_free,
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 5717b1e52d96..88258b9ebc8e 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -17,9 +17,9 @@
*/
#define DMA_ERROR_CODE ~0
-extern struct dma_map_ops c6x_dma_ops;
+extern const struct dma_map_ops c6x_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &c6x_dma_ops;
}
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
index 6752df32ef06..9fff8be75f58 100644
--- a/arch/c6x/kernel/dma.c
+++ b/arch/c6x/kernel/dma.c
@@ -123,7 +123,7 @@ static void c6x_dma_sync_sg_for_device(struct device *dev,
}
-struct dma_map_ops c6x_dma_ops = {
+const struct dma_map_ops c6x_dma_ops = {
.alloc = c6x_dma_alloc,
.free = c6x_dma_free,
.map_page = c6x_dma_map_page,
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index 1f0636793f0c..7072341995ff 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -69,7 +69,7 @@ static inline int v32_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops v32_dma_ops = {
+const struct dma_map_ops v32_dma_ops = {
.alloc = v32_dma_alloc,
.free = v32_dma_free,
.map_page = v32_dma_map_page,
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index 5a370178a0e9..aae4fbc0a656 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -2,14 +2,14 @@
#define _ASM_CRIS_DMA_MAPPING_H
#ifdef CONFIG_PCI
-extern struct dma_map_ops v32_dma_ops;
+extern const struct dma_map_ops v32_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &v32_dma_ops;
}
#else
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
BUG();
return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 9a82bfa4303b..150cc00544a8 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -7,9 +7,9 @@
extern unsigned long __nongprelbss dma_coherent_mem_start;
extern unsigned long __nongprelbss dma_coherent_mem_end;
-extern struct dma_map_ops frv_dma_ops;
+extern const struct dma_map_ops frv_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &frv_dma_ops;
}
diff --git a/arch/frv/mb93090-mb00/pci-dma-nommu.c b/arch/frv/mb93090-mb00/pci-dma-nommu.c
index 187688128c65..4a96de7f0af4 100644
--- a/arch/frv/mb93090-mb00/pci-dma-nommu.c
+++ b/arch/frv/mb93090-mb00/pci-dma-nommu.c
@@ -164,7 +164,7 @@ static int frv_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops frv_dma_ops = {
+const struct dma_map_ops frv_dma_ops = {
.alloc = frv_dma_alloc,
.free = frv_dma_free,
.map_page = frv_dma_map_page,
diff --git a/arch/frv/mb93090-mb00/pci-dma.c b/arch/frv/mb93090-mb00/pci-dma.c
index dba7df918144..e7130abc0dae 100644
--- a/arch/frv/mb93090-mb00/pci-dma.c
+++ b/arch/frv/mb93090-mb00/pci-dma.c
@@ -106,7 +106,7 @@ static int frv_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops frv_dma_ops = {
+const struct dma_map_ops frv_dma_ops = {
.alloc = frv_dma_alloc,
.free = frv_dma_free,
.map_page = frv_dma_map_page,
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index 7ac7fadffed0..f804bca4c13f 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _H8300_DMA_MAPPING_H
#define _H8300_DMA_MAPPING_H
-extern struct dma_map_ops h8300_dma_map_ops;
+extern const struct dma_map_ops h8300_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &h8300_dma_map_ops;
}
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
index 3651da045806..225dd0a188dc 100644
--- a/arch/h8300/kernel/dma.c
+++ b/arch/h8300/kernel/dma.c
@@ -60,7 +60,7 @@ static int map_sg(struct device *dev, struct scatterlist *sgl,
return nents;
}
-struct dma_map_ops h8300_dma_map_ops = {
+const struct dma_map_ops h8300_dma_map_ops = {
.alloc = dma_alloc,
.free = dma_free,
.map_page = map_page,
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index 7ef58df909fc..b812e917cd95 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -32,9 +32,9 @@ struct device;
extern int bad_dma_address;
#define DMA_ERROR_CODE bad_dma_address
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (unlikely(dev == NULL))
return NULL;
diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c
index dbc4f1003da4..e74b65009587 100644
--- a/arch/hexagon/kernel/dma.c
+++ b/arch/hexagon/kernel/dma.c
@@ -25,7 +25,7 @@
#include <linux/module.h>
#include <asm/page.h>
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
int bad_dma_address; /* globals are automatically initialized to zero */
@@ -203,7 +203,7 @@ static void hexagon_sync_single_for_device(struct device *dev,
dma_sync(dma_addr_to_virt(dma_handle), size, dir);
}
-struct dma_map_ops hexagon_dma_ops = {
+const struct dma_map_ops hexagon_dma_ops = {
.alloc = hexagon_dma_alloc_coherent,
.free = hexagon_free_coherent,
.map_sg = hexagon_map_sg,
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index 1e4cae5ae053..0310078a95f8 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -18,7 +18,7 @@
#include <linux/export.h>
#include <asm/machvec.h>
-extern struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
+extern const struct dma_map_ops sba_dma_ops, swiotlb_dma_ops;
/* swiotlb declarations & definitions: */
extern int swiotlb_late_init_with_default_size (size_t size);
@@ -34,7 +34,7 @@ static inline int use_swiotlb(struct device *dev)
!sba_dma_ops.dma_supported(dev, *dev->dma_mask);
}
-struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
+const struct dma_map_ops *hwsw_dma_get_ops(struct device *dev)
{
if (use_swiotlb(dev))
return &swiotlb_dma_ops;
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 630ee8073899..aec4a3354abe 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -2096,7 +2096,7 @@ static int __init acpi_sba_ioc_init_acpi(void)
/* This has to run before acpi_scan_init(). */
arch_initcall(acpi_sba_ioc_init_acpi);
-extern struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
static int __init
sba_init(void)
@@ -2216,7 +2216,7 @@ sba_page_override(char *str)
__setup("sbapagesize=",sba_page_override);
-struct dma_map_ops sba_dma_ops = {
+const struct dma_map_ops sba_dma_ops = {
.alloc = sba_alloc_coherent,
.free = sba_free_coherent,
.map_page = sba_map_page,
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index d472805edfa9..05e467d56d86 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -14,7 +14,7 @@
#define DMA_ERROR_CODE 0
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
extern struct ia64_machine_vector ia64_mv;
extern void set_iommu_machvec(void);
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index ed7f09089f12..af285c423e1e 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -44,7 +44,7 @@ typedef void ia64_mv_kernel_launch_event_t(void);
/* DMA-mapping interface: */
typedef void ia64_mv_dma_init (void);
typedef u64 ia64_mv_dma_get_required_mask (struct device *);
-typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
+typedef const struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
/*
* WARNING: The legacy I/O space is _architected_. Platforms are
@@ -248,7 +248,7 @@ extern void machvec_init_from_cmdline(const char *cmdline);
# endif /* CONFIG_IA64_GENERIC */
extern void swiotlb_dma_init(void);
-extern struct dma_map_ops *dma_get_ops(struct device *);
+extern const struct dma_map_ops *dma_get_ops(struct device *);
/*
* Define default versions so we can extend machvec for new platforms without having
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 7f7916238208..e0dd97f4eb69 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -4,7 +4,7 @@
/* Set this to 1 if there is a HW IOMMU in the system */
int iommu_detected __read_mostly;
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
@@ -17,7 +17,7 @@ static int __init dma_init(void)
}
fs_initcall(dma_init);
-struct dma_map_ops *dma_get_ops(struct device *dev)
+const struct dma_map_ops *dma_get_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 992c1098c522..9094a73f996f 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -90,11 +90,11 @@ void __init pci_iommu_alloc(void)
{
dma_ops = &intel_dma_ops;
- dma_ops->sync_single_for_cpu = machvec_dma_sync_single;
- dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg;
- dma_ops->sync_single_for_device = machvec_dma_sync_single;
- dma_ops->sync_sg_for_device = machvec_dma_sync_sg;
- dma_ops->dma_supported = iommu_dma_supported;
+ intel_dma_ops.sync_single_for_cpu = machvec_dma_sync_single;
+ intel_dma_ops.sync_sg_for_cpu = machvec_dma_sync_sg;
+ intel_dma_ops.sync_single_for_device = machvec_dma_sync_single;
+ intel_dma_ops.sync_sg_for_device = machvec_dma_sync_sg;
+ intel_dma_ops.dma_supported = iommu_dma_supported;
/*
* The order of these functions is important for
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index 2933208c0285..a14989dacded 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -30,7 +30,7 @@ static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops swiotlb_dma_ops = {
.alloc = ia64_swiotlb_alloc_coherent,
.free = ia64_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/m32r/include/asm/device.h b/arch/m32r/include/asm/device.h
index 4a9f35e0973f..7955a9799466 100644
--- a/arch/m32r/include/asm/device.h
+++ b/arch/m32r/include/asm/device.h
@@ -4,7 +4,7 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 2c43a77fe942..99c43d2f05dc 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,7 +10,7 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 96c536194287..863509939d5a 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _M68K_DMA_MAPPING_H
#define _M68K_DMA_MAPPING_H
-extern struct dma_map_ops m68k_dma_ops;
+extern const struct dma_map_ops m68k_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &m68k_dma_ops;
}
diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index 07070065a425..0fc5dabb4a42 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -158,7 +158,7 @@ static int m68k_dma_map_sg(struct device *dev, struct scatterlist *sglist,
return nents;
}
-struct dma_map_ops m68k_dma_ops = {
+const struct dma_map_ops m68k_dma_ops = {
.alloc = m68k_dma_alloc,
.free = m68k_dma_free,
.map_page = m68k_dma_map_page,
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index 27af5d479ce6..c156a7ac732f 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -1,9 +1,9 @@
#ifndef _ASM_METAG_DMA_MAPPING_H
#define _ASM_METAG_DMA_MAPPING_H
-extern struct dma_map_ops metag_dma_ops;
+extern const struct dma_map_ops metag_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &metag_dma_ops;
}
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index 91968d92652b..f0ab3a498328 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -575,7 +575,7 @@ static void metag_dma_sync_sg_for_device(struct device *dev,
dma_sync_for_device(sg_virt(sg), sg->length, direction);
}
-struct dma_map_ops metag_dma_ops = {
+const struct dma_map_ops metag_dma_ops = {
.alloc = metag_dma_alloc,
.free = metag_dma_free,
.map_page = metag_dma_map_page,
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index 1768d4bdc8d3..c7faf2fb51d6 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -36,9 +36,9 @@
/*
* Available generic sets of operations
*/
-extern struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_direct_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &dma_direct_ops;
}
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index 818daf230eb4..12e093a03e60 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -187,7 +187,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
#endif
}
-struct dma_map_ops dma_direct_ops = {
+const struct dma_map_ops dma_direct_ops = {
.alloc = dma_direct_alloc_coherent,
.free = dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index fd69528b24fb..897d32c888ee 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -205,7 +205,7 @@ static phys_addr_t octeon_unity_dma_to_phys(struct device *dev, dma_addr_t daddr
}
struct octeon_dma_map_ops {
- struct dma_map_ops dma_map_ops;
+ const struct dma_map_ops dma_map_ops;
dma_addr_t (*phys_to_dma)(struct device *dev, phys_addr_t paddr);
phys_addr_t (*dma_to_phys)(struct device *dev, dma_addr_t daddr);
};
@@ -333,7 +333,7 @@ static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = {
},
};
-struct dma_map_ops *octeon_pci_dma_map_ops;
+const struct dma_map_ops *octeon_pci_dma_map_ops;
void __init octeon_pci_dma_init(void)
{
diff --git a/arch/mips/include/asm/device.h b/arch/mips/include/asm/device.h
index 21c2082a0dfb..ebc5c1265473 100644
--- a/arch/mips/include/asm/device.h
+++ b/arch/mips/include/asm/device.h
@@ -10,7 +10,7 @@ struct dma_map_ops;
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMA_PERDEV_COHERENT
/* Non-zero if DMA is coherent with CPU caches */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 7aa71b9b0258..b59b084a7569 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -9,9 +9,9 @@
#include <dma-coherence.h>
#endif
-extern struct dma_map_ops *mips_dma_map_ops;
+extern const struct dma_map_ops *mips_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 460042ee5d6f..9110988b92a1 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -65,7 +65,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
struct dma_map_ops;
-extern struct dma_map_ops *octeon_pci_dma_map_ops;
+extern const struct dma_map_ops *octeon_pci_dma_map_ops;
extern char *octeon_swiotlb;
#endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index be52c2125d71..e0717d10e650 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -88,7 +88,7 @@ extern struct plat_smp_ops nlm_smp_ops;
extern char nlm_reset_entry[], nlm_reset_entry_end[];
/* SWIOTLB */
-extern struct dma_map_ops nlm_swiotlb_dma_ops;
+extern const struct dma_map_ops nlm_swiotlb_dma_ops;
extern unsigned int nlm_threads_per_core;
extern cpumask_t nlm_cpumask;
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index aab4fd681e1f..7296df043d92 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -122,7 +122,7 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
return daddr;
}
-static struct dma_map_ops loongson_dma_map_ops = {
+static const struct dma_map_ops loongson_dma_map_ops = {
.alloc = loongson_dma_alloc_coherent,
.free = loongson_dma_free_coherent,
.map_page = loongson_dma_map_page,
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index a39c36af97ad..1cb84472cb58 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -417,7 +417,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
EXPORT_SYMBOL(dma_cache_sync);
-static struct dma_map_ops mips_default_dma_map_ops = {
+static const struct dma_map_ops mips_default_dma_map_ops = {
.alloc = mips_dma_alloc_coherent,
.free = mips_dma_free_coherent,
.mmap = mips_dma_mmap,
@@ -433,7 +433,7 @@ static struct dma_map_ops mips_default_dma_map_ops = {
.dma_supported = mips_dma_supported
};
-struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
+const struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
EXPORT_SYMBOL(mips_dma_map_ops);
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
diff --git a/arch/mips/netlogic/common/nlm-dma.c b/arch/mips/netlogic/common/nlm-dma.c
index 0630693bec2a..0ec9d9da6d51 100644
--- a/arch/mips/netlogic/common/nlm-dma.c
+++ b/arch/mips/netlogic/common/nlm-dma.c
@@ -67,7 +67,7 @@ static void nlm_dma_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_handle);
}
-struct dma_map_ops nlm_swiotlb_dma_ops = {
+const struct dma_map_ops nlm_swiotlb_dma_ops = {
.alloc = nlm_dma_alloc_coherent,
.free = nlm_dma_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 1dcd44757f32..564e3927e005 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -14,9 +14,9 @@
#include <asm/cache.h>
#include <asm/io.h>
-extern struct dma_map_ops mn10300_dma_ops;
+extern const struct dma_map_ops mn10300_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &mn10300_dma_ops;
}
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 4f4b9029f0ea..86108d2496b3 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -121,7 +121,7 @@ static int mn10300_dma_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops mn10300_dma_ops = {
+const struct dma_map_ops mn10300_dma_ops = {
.alloc = mn10300_dma_alloc,
.free = mn10300_dma_free,
.map_page = mn10300_dma_map_page,
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index bec8ac8e6ad2..aa00d839a64b 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -10,9 +10,9 @@
#ifndef _ASM_NIOS2_DMA_MAPPING_H
#define _ASM_NIOS2_DMA_MAPPING_H
-extern struct dma_map_ops nios2_dma_ops;
+extern const struct dma_map_ops nios2_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &nios2_dma_ops;
}
diff --git a/arch/nios2/mm/dma-mapping.c b/arch/nios2/mm/dma-mapping.c
index f6a5dcf9d682..7040c1adbb5e 100644
--- a/arch/nios2/mm/dma-mapping.c
+++ b/arch/nios2/mm/dma-mapping.c
@@ -192,7 +192,7 @@ static void nios2_dma_sync_sg_for_device(struct device *dev,
}
-struct dma_map_ops nios2_dma_ops = {
+const struct dma_map_ops nios2_dma_ops = {
.alloc = nios2_dma_alloc,
.free = nios2_dma_free,
.map_page = nios2_dma_map_page,
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 1f260bccb368..88acbedb4947 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -28,9 +28,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops or1k_dma_map_ops;
+extern const struct dma_map_ops or1k_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &or1k_dma_map_ops;
}
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 906998bac957..b10369b7e31b 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -232,7 +232,7 @@ or1k_sync_single_for_device(struct device *dev,
mtspr(SPR_DCBFR, cl);
}
-struct dma_map_ops or1k_dma_map_ops = {
+const struct dma_map_ops or1k_dma_map_ops = {
.alloc = or1k_dma_alloc,
.free = or1k_dma_free,
.map_page = or1k_map_page,
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 16e024602737..1749073e44fc 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -21,13 +21,13 @@
*/
#ifdef CONFIG_PA11
-extern struct dma_map_ops pcxl_dma_ops;
-extern struct dma_map_ops pcx_dma_ops;
+extern const struct dma_map_ops pcxl_dma_ops;
+extern const struct dma_map_ops pcx_dma_ops;
#endif
-extern struct dma_map_ops *hppa_dma_ops;
+extern const struct dma_map_ops *hppa_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return hppa_dma_ops;
}
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 700e2d2da096..fa78419100c8 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -40,7 +40,7 @@
#include <asm/parisc-device.h>
/* See comments in include/asm-parisc/pci.h */
-struct dma_map_ops *hppa_dma_ops __read_mostly;
+const struct dma_map_ops *hppa_dma_ops __read_mostly;
EXPORT_SYMBOL(hppa_dma_ops);
static struct device root = {
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 697c53543a4d..5f0067a62738 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -572,7 +572,7 @@ static void pa11_dma_sync_sg_for_device(struct device *dev, struct scatterlist *
flush_kernel_vmap_range(sg_virt(sg), sg->length);
}
-struct dma_map_ops pcxl_dma_ops = {
+const struct dma_map_ops pcxl_dma_ops = {
.dma_supported = pa11_dma_supported,
.alloc = pa11_dma_alloc,
.free = pa11_dma_free,
@@ -608,7 +608,7 @@ static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
return;
}
-struct dma_map_ops pcx_dma_ops = {
+const struct dma_map_ops pcx_dma_ops = {
.dma_supported = pa11_dma_supported,
.alloc = pcx_dma_alloc,
.free = pcx_dma_free,
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 406c2b1ff82d..49cbb0fca233 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -21,7 +21,7 @@ struct iommu_table;
*/
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
/*
* These two used to be a union. However, with the hybrid ops we need
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 84e3f8dd5e4f..2ec3eadf336f 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -76,9 +76,9 @@ static inline unsigned long device_to_mask(struct device *dev)
#ifdef CONFIG_PPC64
extern struct dma_map_ops dma_iommu_ops;
#endif
-extern struct dma_map_ops dma_direct_ops;
+extern const struct dma_map_ops dma_direct_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
/* We don't handle the NULL dev case for ISA for now. We could
* do it via an out of line call but it is not needed for now. The
@@ -91,7 +91,7 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return dev->archdata.dma_ops;
}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
}
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index e9bd6cf0212f..93eded8d3843 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -53,8 +53,8 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
}
#ifdef CONFIG_PCI
-extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
-extern struct dma_map_ops *get_pci_dma_ops(void);
+extern void set_pci_dma_ops(const struct dma_map_ops *dma_ops);
+extern const struct dma_map_ops *get_pci_dma_ops(void);
#else /* CONFIG_PCI */
#define set_pci_dma_ops(d)
#define get_pci_dma_ops() NULL
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index de99d6e29430..01d45a5fd00b 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -13,7 +13,7 @@
#include <linux/swiotlb.h>
-extern struct dma_map_ops swiotlb_dma_ops;
+extern const struct dma_map_ops swiotlb_dma_ops;
static inline void dma_mark_clean(void *addr, size_t size) {}
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index c6689f658b50..d0ea7860e02b 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -46,7 +46,7 @@ static u64 swiotlb_powerpc_get_required(struct device *dev)
* map_page, and unmap_page on highmem, use normal dma_ops
* for everything else.
*/
-struct dma_map_ops swiotlb_dma_ops = {
+const struct dma_map_ops swiotlb_dma_ops = {
.alloc = __dma_direct_alloc_coherent,
.free = __dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 6877e3fa95bb..03b98f1f98ec 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -274,7 +274,7 @@ static inline void dma_direct_sync_single(struct device *dev,
}
#endif
-struct dma_map_ops dma_direct_ops = {
+const struct dma_map_ops dma_direct_ops = {
.alloc = dma_direct_alloc_coherent,
.free = dma_direct_free_coherent,
.mmap = dma_direct_mmap_coherent,
@@ -316,7 +316,7 @@ EXPORT_SYMBOL(dma_set_coherent_mask);
int __dma_set_mask(struct device *dev, u64 dma_mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
if ((dma_ops != NULL) && (dma_ops->set_dma_mask != NULL))
return dma_ops->set_dma_mask(dev, dma_mask);
@@ -344,7 +344,7 @@ EXPORT_SYMBOL(dma_set_mask);
u64 __dma_get_required_mask(struct device *dev)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
if (unlikely(dma_ops == NULL))
return 0;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 74bec5498972..09db4778435c 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -59,14 +59,14 @@ resource_size_t isa_mem_base;
EXPORT_SYMBOL(isa_mem_base);
-static struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
+static const struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
-void set_pci_dma_ops(struct dma_map_ops *dma_ops)
+void set_pci_dma_ops(const struct dma_map_ops *dma_ops)
{
pci_dma_ops = dma_ops;
}
-struct dma_map_ops *get_pci_dma_ops(void)
+const struct dma_map_ops *get_pci_dma_ops(void)
{
return pci_dma_ops;
}
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 7ff51f96a00e..e1413e69e5fe 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -651,7 +651,7 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask)
static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask);
-static struct dma_map_ops dma_iommu_fixed_ops = {
+static const struct dma_map_ops dma_iommu_fixed_ops = {
.alloc = dma_fixed_alloc_coherent,
.free = dma_fixed_free_coherent,
.map_sg = dma_fixed_map_sg,
@@ -1172,7 +1172,7 @@ __setup("iommu_fixed=", setup_iommu_fixed);
static u64 cell_dma_get_required_mask(struct device *dev)
{
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
if (!dev->dma_mask)
return 0;
diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
index 73b155fd4481..1c383f38031d 100644
--- a/arch/powerpc/platforms/powernv/npu-dma.c
+++ b/arch/powerpc/platforms/powernv/npu-dma.c
@@ -115,7 +115,7 @@ static u64 dma_npu_get_required_mask(struct device *dev)
return 0;
}
-static struct dma_map_ops dma_npu_ops = {
+static const struct dma_map_ops dma_npu_ops = {
.map_page = dma_npu_map_page,
.map_sg = dma_npu_map_sg,
.alloc = dma_npu_alloc,
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index 8af1c15aef85..c81450d98794 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -701,7 +701,7 @@ static u64 ps3_dma_get_required_mask(struct device *_dev)
return DMA_BIT_MASK(32);
}
-static struct dma_map_ops ps3_sb_dma_ops = {
+static const struct dma_map_ops ps3_sb_dma_ops = {
.alloc = ps3_alloc_coherent,
.free = ps3_free_coherent,
.map_sg = ps3_sb_map_sg,
@@ -712,7 +712,7 @@ static struct dma_map_ops ps3_sb_dma_ops = {
.unmap_page = ps3_unmap_page,
};
-static struct dma_map_ops ps3_ioc0_dma_ops = {
+static const struct dma_map_ops ps3_ioc0_dma_ops = {
.alloc = ps3_alloc_coherent,
.free = ps3_free_coherent,
.map_sg = ps3_ioc0_map_sg,
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index 614c28537141..2e36a0b8944a 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -136,7 +136,7 @@ static u64 ibmebus_dma_get_required_mask(struct device *dev)
return DMA_BIT_MASK(64);
}
-static struct dma_map_ops ibmebus_dma_ops = {
+static const struct dma_map_ops ibmebus_dma_ops = {
.alloc = ibmebus_alloc_coherent,
.free = ibmebus_free_coherent,
.map_sg = ibmebus_map_sg,
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 2c8fb3ec989e..720493932486 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -615,7 +615,7 @@ static u64 vio_dma_get_required_mask(struct device *dev)
return dma_iommu_ops.get_required_mask(dev);
}
-static struct dma_map_ops vio_dma_mapping_ops = {
+static const struct dma_map_ops vio_dma_mapping_ops = {
.alloc = vio_dma_iommu_alloc_coherent,
.free = vio_dma_iommu_free_coherent,
.mmap = dma_direct_mmap_coherent,
diff --git a/arch/s390/include/asm/device.h b/arch/s390/include/asm/device.h
index 4a9f35e0973f..7955a9799466 100644
--- a/arch/s390/include/asm/device.h
+++ b/arch/s390/include/asm/device.h
@@ -4,7 +4,7 @@
* This file is released under the GPLv2
*/
struct dev_archdata {
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index ffaba07f50ab..2776d205b1ff 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -10,9 +10,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t) 0x0)
-extern struct dma_map_ops s390_pci_dma_ops;
+extern const struct dma_map_ops s390_pci_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 1d7a9c71944a..9081a57fa340 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -650,7 +650,7 @@ static int __init dma_debug_do_init(void)
}
fs_initcall(dma_debug_do_init);
-struct dma_map_ops s390_pci_dma_ops = {
+const struct dma_map_ops s390_pci_dma_ops = {
.alloc = s390_dma_alloc,
.free = s390_dma_free,
.map_sg = s390_dma_map_sg,
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 0052ad40e86d..a7382c34c241 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -1,10 +1,10 @@
#ifndef __ASM_SH_DMA_MAPPING_H
#define __ASM_SH_DMA_MAPPING_H
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void);
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return dma_ops;
}
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 47fee3b6e29c..d24c707b2181 100644
--- a/arch/sh/kernel/dma-nommu.c
+++ b/arch/sh/kernel/dma-nommu.c
@@ -65,7 +65,7 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg,
}
#endif
-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
.alloc = dma_generic_alloc_coherent,
.free = dma_generic_free_coherent,
.map_page = nommu_map_page,
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 92b6976fde59..d1275adfa0ef 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -22,7 +22,7 @@
#define PREALLOC_DMA_DEBUG_ENTRIES 4096
-struct dma_map_ops *dma_ops;
+const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
static int __init dma_init(void)
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 1180ae254154..3d2babc0c4c6 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -18,13 +18,13 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
*/
}
-extern struct dma_map_ops *dma_ops;
-extern struct dma_map_ops *leon_dma_ops;
-extern struct dma_map_ops pci32_dma_ops;
+extern const struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *leon_dma_ops;
+extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index 9df997995f6b..c63ba99ca551 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -741,7 +741,7 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev,
spin_unlock_irqrestore(&iommu->lock, flags);
}
-static struct dma_map_ops sun4u_dma_ops = {
+static const struct dma_map_ops sun4u_dma_ops = {
.alloc = dma_4u_alloc_coherent,
.free = dma_4u_free_coherent,
.map_page = dma_4u_map_page,
@@ -752,7 +752,7 @@ static struct dma_map_ops sun4u_dma_ops = {
.sync_sg_for_cpu = dma_4u_sync_sg_for_cpu,
};
-struct dma_map_ops *dma_ops = &sun4u_dma_ops;
+const struct dma_map_ops *dma_ops = &sun4u_dma_ops;
EXPORT_SYMBOL(dma_ops);
int dma_supported(struct device *dev, u64 device_mask)
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 6ffaec44931a..cf20033a1458 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -401,7 +401,7 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
BUG();
}
-static struct dma_map_ops sbus_dma_ops = {
+static const struct dma_map_ops sbus_dma_ops = {
.alloc = sbus_alloc_coherent,
.free = sbus_free_coherent,
.map_page = sbus_map_page,
@@ -637,7 +637,7 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist *
}
}
-struct dma_map_ops pci32_dma_ops = {
+const struct dma_map_ops pci32_dma_ops = {
.alloc = pci32_alloc_coherent,
.free = pci32_free_coherent,
.map_page = pci32_map_page,
@@ -652,10 +652,10 @@ struct dma_map_ops pci32_dma_ops = {
EXPORT_SYMBOL(pci32_dma_ops);
/* leon re-uses pci32_dma_ops */
-struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
+const struct dma_map_ops *leon_dma_ops = &pci32_dma_ops;
EXPORT_SYMBOL(leon_dma_ops);
-struct dma_map_ops *dma_ops = &sbus_dma_ops;
+const struct dma_map_ops *dma_ops = &sbus_dma_ops;
EXPORT_SYMBOL(dma_ops);
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index f4daccd12bf5..68bec7c97cb8 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -669,7 +669,7 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist,
local_irq_restore(flags);
}
-static struct dma_map_ops sun4v_dma_ops = {
+static const struct dma_map_ops sun4v_dma_ops = {
.alloc = dma_4v_alloc_coherent,
.free = dma_4v_free_coherent,
.map_page = dma_4v_map_page,
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h
index 6ab8bf146d4c..25f23ac7d361 100644
--- a/arch/tile/include/asm/device.h
+++ b/arch/tile/include/asm/device.h
@@ -18,7 +18,7 @@
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
/* Offset of the DMA address from the PA. */
dma_addr_t dma_offset;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 01ceb4a895b0..4a06cc75b856 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -24,12 +24,12 @@
#define ARCH_HAS_DMA_GET_REQUIRED_MASK
#endif
-extern struct dma_map_ops *tile_dma_map_ops;
-extern struct dma_map_ops *gx_pci_dma_map_ops;
-extern struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-extern struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
+extern const struct dma_map_ops *tile_dma_map_ops;
+extern const struct dma_map_ops *gx_pci_dma_map_ops;
+extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
+extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
@@ -59,7 +59,7 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
static inline void dma_mark_clean(void *addr, size_t size) {}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
+static inline void set_dma_ops(struct device *dev, const struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
}
diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c
index 24e0f8c21f2f..569bb6dd154a 100644
--- a/arch/tile/kernel/pci-dma.c
+++ b/arch/tile/kernel/pci-dma.c
@@ -329,7 +329,7 @@ tile_dma_supported(struct device *dev, u64 mask)
return 1;
}
-static struct dma_map_ops tile_default_dma_map_ops = {
+static const struct dma_map_ops tile_default_dma_map_ops = {
.alloc = tile_dma_alloc_coherent,
.free = tile_dma_free_coherent,
.map_page = tile_dma_map_page,
@@ -344,7 +344,7 @@ static struct dma_map_ops tile_default_dma_map_ops = {
.dma_supported = tile_dma_supported
};
-struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
+const struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops;
EXPORT_SYMBOL(tile_dma_map_ops);
/* Generic PCI DMA mapping functions */
@@ -516,7 +516,7 @@ tile_pci_dma_supported(struct device *dev, u64 mask)
return 1;
}
-static struct dma_map_ops tile_pci_default_dma_map_ops = {
+static const struct dma_map_ops tile_pci_default_dma_map_ops = {
.alloc = tile_pci_dma_alloc_coherent,
.free = tile_pci_dma_free_coherent,
.map_page = tile_pci_dma_map_page,
@@ -531,7 +531,7 @@ static struct dma_map_ops tile_pci_default_dma_map_ops = {
.dma_supported = tile_pci_dma_supported
};
-struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
+const struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops;
EXPORT_SYMBOL(gx_pci_dma_map_ops);
/* PCI DMA mapping functions for legacy PCI devices */
@@ -552,7 +552,7 @@ static void tile_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-static struct dma_map_ops pci_swiotlb_dma_ops = {
+static const struct dma_map_ops pci_swiotlb_dma_ops = {
.alloc = tile_swiotlb_alloc_coherent,
.free = tile_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
@@ -567,7 +567,7 @@ static struct dma_map_ops pci_swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
};
-static struct dma_map_ops pci_hybrid_dma_ops = {
+static const struct dma_map_ops pci_hybrid_dma_ops = {
.alloc = tile_swiotlb_alloc_coherent,
.free = tile_swiotlb_free_coherent,
.map_page = tile_pci_dma_map_page,
@@ -582,18 +582,18 @@ static struct dma_map_ops pci_hybrid_dma_ops = {
.dma_supported = tile_pci_dma_supported
};
-struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
-struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops;
+const struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops;
#else
-struct dma_map_ops *gx_legacy_pci_dma_map_ops;
-struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
+const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
+const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
#endif
EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops);
EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops);
int dma_set_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
/*
* For PCI devices with 64-bit DMA addressing capability, promote
@@ -623,7 +623,7 @@ EXPORT_SYMBOL(dma_set_mask);
#ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK
int dma_set_coherent_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *dma_ops = get_dma_ops(dev);
+ const struct dma_map_ops *dma_ops = get_dma_ops(dev);
/*
* For PCI devices with 64-bit DMA addressing capability, promote
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 4749854afd03..14d7729c7b73 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -21,9 +21,9 @@
#include <asm/memory.h>
#include <asm/cacheflush.h>
-extern struct dma_map_ops swiotlb_dma_map_ops;
+extern const struct dma_map_ops swiotlb_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &swiotlb_dma_map_ops;
}
diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c
index 3e9f6489ba38..525413d6690e 100644
--- a/arch/unicore32/mm/dma-swiotlb.c
+++ b/arch/unicore32/mm/dma-swiotlb.c
@@ -31,7 +31,7 @@ static void unicore_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
-struct dma_map_ops swiotlb_dma_map_ops = {
+const struct dma_map_ops swiotlb_dma_map_ops = {
.alloc = unicore_swiotlb_alloc_coherent,
.free = unicore_swiotlb_free_coherent,
.map_sg = swiotlb_map_sg_attrs,
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 684ed6c3aa67..b2d0b4ced7e3 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -3,7 +3,7 @@
struct dev_archdata {
#ifdef CONFIG_X86_DEV_DMA_OPS
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
#endif
#if defined(CONFIG_INTEL_IOMMU) || defined(CONFIG_AMD_IOMMU)
void *iommu; /* hook for IOMMU specific extension */
@@ -13,7 +13,7 @@ struct dev_archdata {
#if defined(CONFIG_X86_DEV_DMA_OPS) && defined(CONFIG_PCI_DOMAINS)
struct dma_domain {
struct list_head node;
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
int domain_nr;
};
void add_dma_domain(struct dma_domain *domain);
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 44461626830e..5e4772886a1e 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -25,9 +25,9 @@ extern int iommu_merge;
extern struct device x86_dma_fallback_dev;
extern int panic_on_overflow;
-extern struct dma_map_ops *dma_ops;
+extern const struct dma_map_ops *dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 345c99cef152..793869879464 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -1,7 +1,7 @@
#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H
-extern struct dma_map_ops nommu_dma_ops;
+extern const struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_pass_through;
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 63ff468a7986..82dfe32faaf4 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -695,7 +695,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info)
return -1;
}
-static struct dma_map_ops gart_dma_ops = {
+static const struct dma_map_ops gart_dma_ops = {
.map_sg = gart_map_sg,
.unmap_sg = gart_unmap_sg,
.map_page = gart_map_page,
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 5d400ba1349d..17f180148c80 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -478,7 +478,7 @@ static void calgary_free_coherent(struct device *dev, size_t size,
free_pages((unsigned long)vaddr, get_order(size));
}
-static struct dma_map_ops calgary_dma_ops = {
+static const struct dma_map_ops calgary_dma_ops = {
.alloc = calgary_alloc_coherent,
.free = calgary_free_coherent,
.map_sg = calgary_map_sg,
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index d30c37750765..76f4c039baae 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -17,7 +17,7 @@
static int forbid_dac __read_mostly;
-struct dma_map_ops *dma_ops = &nommu_dma_ops;
+const struct dma_map_ops *dma_ops = &nommu_dma_ops;
EXPORT_SYMBOL(dma_ops);
static int iommu_sac_force __read_mostly;
@@ -214,7 +214,7 @@ early_param("iommu", iommu_setup);
int dma_supported(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
#ifdef CONFIG_PCI
if (mask > 0xffffffff && forbid_dac > 0) {
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 00e71ce396a8..a88952ef371c 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -88,7 +88,7 @@ static void nommu_sync_sg_for_device(struct device *dev,
flush_write_buffers();
}
-struct dma_map_ops nommu_dma_ops = {
+const struct dma_map_ops nommu_dma_ops = {
.alloc = dma_generic_alloc_coherent,
.free = dma_generic_free_coherent,
.map_sg = nommu_map_sg,
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 410efb2c7b80..1e23577e17cf 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -45,7 +45,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
}
-static struct dma_map_ops swiotlb_dma_ops = {
+static const struct dma_map_ops swiotlb_dma_ops = {
.mapping_error = swiotlb_dma_mapping_error,
.alloc = x86_swiotlb_alloc_coherent,
.free = x86_swiotlb_free_coherent,
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 052c1cb76305..aa3828823170 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -179,7 +179,7 @@ static void *sta2x11_swiotlb_alloc_coherent(struct device *dev,
}
/* We have our own dma_ops: the same as swiotlb but from alloc (above) */
-static struct dma_map_ops sta2x11_dma_ops = {
+static const struct dma_map_ops sta2x11_dma_ops = {
.alloc = sta2x11_swiotlb_alloc_coherent,
.free = x86_swiotlb_free_coherent,
.map_page = swiotlb_map_page,
diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c
index a0b36a9d5df1..42b08f8fc2ca 100644
--- a/arch/x86/xen/pci-swiotlb-xen.c
+++ b/arch/x86/xen/pci-swiotlb-xen.c
@@ -18,7 +18,7 @@
int xen_swiotlb __read_mostly;
-static struct dma_map_ops xen_swiotlb_dma_ops = {
+static const struct dma_map_ops xen_swiotlb_dma_ops = {
.alloc = xen_swiotlb_alloc_coherent,
.free = xen_swiotlb_free_coherent,
.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
diff --git a/arch/xtensa/include/asm/device.h b/arch/xtensa/include/asm/device.h
index fe1f5c878493..a77d45d39f35 100644
--- a/arch/xtensa/include/asm/device.h
+++ b/arch/xtensa/include/asm/device.h
@@ -10,7 +10,7 @@ struct dma_map_ops;
struct dev_archdata {
/* DMA operations on that device */
- struct dma_map_ops *dma_ops;
+ const struct dma_map_ops *dma_ops;
};
struct pdev_archdata {
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 3fc1170a6488..50d23106cce0 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -18,9 +18,9 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-extern struct dma_map_ops xtensa_dma_map_ops;
+extern const struct dma_map_ops xtensa_dma_map_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
diff --git a/arch/xtensa/kernel/pci-dma.c b/arch/xtensa/kernel/pci-dma.c
index 70e362e6038e..ecec5265a66d 100644
--- a/arch/xtensa/kernel/pci-dma.c
+++ b/arch/xtensa/kernel/pci-dma.c
@@ -249,7 +249,7 @@ int xtensa_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
return 0;
}
-struct dma_map_ops xtensa_dma_map_ops = {
+const struct dma_map_ops xtensa_dma_map_ops = {
.alloc = xtensa_dma_alloc,
.free = xtensa_dma_free,
.map_page = xtensa_map_page,
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 3ef0f42984f2..3703fb9db419 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -117,7 +117,7 @@ static const struct iommu_ops amd_iommu_ops;
static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
int amd_iommu_max_glx_val = -1;
-static struct dma_map_ops amd_iommu_dma_ops;
+static const struct dma_map_ops amd_iommu_dma_ops;
/*
* This struct contains device specific data for the IOMMU
@@ -2728,7 +2728,7 @@ static int amd_iommu_dma_supported(struct device *dev, u64 mask)
return check_device(dev);
}
-static struct dma_map_ops amd_iommu_dma_ops = {
+static const struct dma_map_ops amd_iommu_dma_ops = {
.alloc = alloc_coherent,
.free = free_coherent,
.map_page = map_page,
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index be37890abb93..c4b27a25662a 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -143,7 +143,7 @@ static void mbus_release_dev(struct device *d)
}
struct mbus_device *
-mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct mbus_hw_ops *hw_ops, int index,
void __iomem *mmio_va)
{
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index ff6e01c25810..e5d377e97c86 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -138,7 +138,7 @@ static void scif_release_dev(struct device *d)
}
struct scif_hw_dev *
-scif_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+scif_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct scif_hw_ops *hw_ops, u8 dnode, u8 snode,
struct mic_mw *mmio, struct mic_mw *aper, void *dp,
void __iomem *rdp, struct dma_chan **chan, int num_chan,
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
index 94f29ac608b6..ff59568219ad 100644
--- a/drivers/misc/mic/bus/scif_bus.h
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -113,7 +113,7 @@ int scif_register_driver(struct scif_driver *driver);
void scif_unregister_driver(struct scif_driver *driver);
struct scif_hw_dev *
scif_register_device(struct device *pdev, int id,
- struct dma_map_ops *dma_ops,
+ const struct dma_map_ops *dma_ops,
struct scif_hw_ops *hw_ops, u8 dnode, u8 snode,
struct mic_mw *mmio, struct mic_mw *aper,
void *dp, void __iomem *rdp,
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index 303da222f5b6..e3caa6c53922 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -154,7 +154,7 @@ vop_register_device(struct device *pdev, int id,
vdev->dev.parent = pdev;
vdev->id.device = id;
vdev->id.vendor = VOP_DEV_ANY_ID;
- vdev->dev.archdata.dma_ops = (struct dma_map_ops *)dma_ops;
+ vdev->dev.archdata.dma_ops = dma_ops;
vdev->dev.dma_mask = &vdev->dev.coherent_dma_mask;
dma_set_mask(&vdev->dev, DMA_BIT_MASK(64));
vdev->dev.release = vop_release_dev;
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index 9599d732aff3..c327985c9523 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -245,7 +245,7 @@ static void __mic_dma_unmap_sg(struct device *dev,
dma_unmap_sg(&mdev->pdev->dev, sg, nents, dir);
}
-static struct dma_map_ops __mic_dma_ops = {
+static const struct dma_map_ops __mic_dma_ops = {
.alloc = __mic_dma_alloc,
.free = __mic_dma_free,
.map_page = __mic_dma_map_page,
@@ -344,7 +344,7 @@ mic_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
mic_unmap_single(mdev, dma_addr, size);
}
-static struct dma_map_ops mic_dma_ops = {
+static const struct dma_map_ops mic_dma_ops = {
.map_page = mic_dma_map_page,
.unmap_page = mic_dma_unmap_page,
};
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 553ef8a5d588..aeb073b5fe16 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1011,7 +1011,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
DBG_RUN_SG("%s() DONE (nents %d)\n", __func__, nents);
}
-static struct dma_map_ops ccio_ops = {
+static const struct dma_map_ops ccio_ops = {
.dma_supported = ccio_dma_supported,
.alloc = ccio_alloc,
.free = ccio_free,
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 151b86b6d2e2..33385e574433 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1069,7 +1069,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
}
-static struct dma_map_ops sba_ops = {
+static const struct dma_map_ops sba_ops = {
.dma_supported = sba_dma_supported,
.alloc = sba_alloc,
.free = sba_free,
diff --git a/drivers/pci/host/vmd.c b/drivers/pci/host/vmd.c
index 18ef1a93c10a..e27ad2a3bd33 100644
--- a/drivers/pci/host/vmd.c
+++ b/drivers/pci/host/vmd.c
@@ -282,7 +282,7 @@ static struct device *to_vmd_dev(struct device *dev)
return &vmd->dev->dev;
}
-static struct dma_map_ops *vmd_dma_ops(struct device *dev)
+static const struct dma_map_ops *vmd_dma_ops(struct device *dev)
{
return get_dma_ops(to_vmd_dev(dev));
}
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 10c5a17b1f51..f1da68b82c63 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -127,7 +127,7 @@ struct dma_map_ops {
int is_phys;
};
-extern struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_noop_ops;
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
@@ -170,8 +170,8 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
* dma dependent code. Code that depends on the dma-mapping
* API needs to set 'depends on HAS_DMA' in its Kconfig
*/
-extern struct dma_map_ops bad_dma_ops;
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+extern const struct dma_map_ops bad_dma_ops;
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
{
return &bad_dma_ops;
}
@@ -182,7 +182,7 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *ptr,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
kmemcheck_mark_initialized(ptr, size);
@@ -201,7 +201,7 @@ static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t addr,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
@@ -217,7 +217,7 @@ static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
int i, ents;
struct scatterlist *s;
@@ -235,7 +235,7 @@ static inline void dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sg
int nents, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
debug_dma_unmap_sg(dev, sg, nents, dir);
@@ -249,7 +249,7 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
kmemcheck_mark_initialized(page_address(page) + offset, size);
@@ -265,7 +265,7 @@ static inline void dma_unmap_page_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_page)
@@ -279,7 +279,7 @@ static inline dma_addr_t dma_map_resource(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
dma_addr_t addr;
BUG_ON(!valid_dma_direction(dir));
@@ -300,7 +300,7 @@ static inline void dma_unmap_resource(struct device *dev, dma_addr_t addr,
size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->unmap_resource)
@@ -312,7 +312,7 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr,
size_t size,
enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_cpu)
@@ -324,7 +324,7 @@ static inline void dma_sync_single_for_device(struct device *dev,
dma_addr_t addr, size_t size,
enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_single_for_device)
@@ -364,7 +364,7 @@ static inline void
dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_cpu)
@@ -376,7 +376,7 @@ static inline void
dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
int nelems, enum dma_data_direction dir)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!valid_dma_direction(dir));
if (ops->sync_sg_for_device)
@@ -421,7 +421,7 @@ static inline int
dma_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr,
dma_addr_t dma_addr, size_t size, unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
if (ops->mmap)
return ops->mmap(dev, vma, cpu_addr, dma_addr, size, attrs);
@@ -439,7 +439,7 @@ dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr,
dma_addr_t dma_addr, size_t size,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
if (ops->get_sgtable)
return ops->get_sgtable(dev, sgt, cpu_addr, dma_addr, size,
@@ -457,7 +457,7 @@ static inline void *dma_alloc_attrs(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
void *cpu_addr;
BUG_ON(!ops);
@@ -479,7 +479,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_handle,
unsigned long attrs)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
BUG_ON(!ops);
WARN_ON(irqs_disabled());
@@ -537,7 +537,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
#ifndef HAVE_ARCH_DMA_SUPPORTED
static inline int dma_supported(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
if (!ops)
return 0;
@@ -550,7 +550,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
#ifndef HAVE_ARCH_DMA_SET_MASK
static inline int dma_set_mask(struct device *dev, u64 mask)
{
- struct dma_map_ops *ops = get_dma_ops(dev);
+ const struct dma_map_ops *ops = get_dma_ops(dev);
if (ops->set_dma_mask)
return ops->set_dma_mask(dev, mask);
diff --git a/include/linux/mic_bus.h b/include/linux/mic_bus.h
index 27d7c95fd0da..504d54c71bdb 100644
--- a/include/linux/mic_bus.h
+++ b/include/linux/mic_bus.h
@@ -90,7 +90,7 @@ struct mbus_hw_ops {
};
struct mbus_device *
-mbus_register_device(struct device *pdev, int id, struct dma_map_ops *dma_ops,
+mbus_register_device(struct device *pdev, int id, const struct dma_map_ops *dma_ops,
struct mbus_hw_ops *hw_ops, int index,
void __iomem *mmio_va);
void mbus_unregister_device(struct mbus_device *mbdev);
diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h
index 95251512e2c4..44b587b49904 100644
--- a/include/xen/arm/hypervisor.h
+++ b/include/xen/arm/hypervisor.h
@@ -18,7 +18,7 @@ static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
return PARAVIRT_LAZY_NONE;
}
-extern struct dma_map_ops *xen_dma_ops;
+extern const struct dma_map_ops *xen_dma_ops;
#ifdef CONFIG_XEN
void __init xen_early_init(void);
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index 3d766e78fbe2..65e49dd35b7b 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -64,7 +64,7 @@ static int dma_noop_supported(struct device *dev, u64 mask)
return 1;
}
-struct dma_map_ops dma_noop_ops = {
+const struct dma_map_ops dma_noop_ops = {
.alloc = dma_noop_alloc,
.free = dma_noop_free,
.map_page = dma_noop_map_page,
--
2.11.0
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 04/37] treewide: Consolidate get_dma_ops() implementations
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 01/37] treewide: Constify most dma_map_ops structures Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 05/37] lib/dma-noop: Clarify a comment Bart Van Assche
` (34 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Benjamin Herrenschmidt, Boris Ostrovsky, David Woodhouse,
Juergen Gross, H . Peter Anvin, Ingo Molnar,
linux-arch-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA, Russell King,
x86-DgEjT+Ai2ygdnm+yROfE0A
Introduce a new architecture-specific get_arch_dma_ops() function
that takes a struct bus_type * argument. Add get_dma_ops() in
<linux/dma-mapping.h>.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Benjamin Herrenschmidt <benh-XVmvHMARGAS8U2dJNN8I7kB+6BGkLq7r@public.gmane.org>
Cc: Boris Ostrovsky <boris.ostrovsky-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Cc: Juergen Gross <jgross-IBi9RG/b67k@public.gmane.org>
Cc: H. Peter Anvin <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Cc: Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>
Cc: x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
---
arch/alpha/include/asm/dma-mapping.h | 2 +-
arch/arc/include/asm/dma-mapping.h | 2 +-
arch/arm/include/asm/dma-mapping.h | 4 ++--
arch/arm64/include/asm/dma-mapping.h | 4 ++--
arch/avr32/include/asm/dma-mapping.h | 2 +-
arch/blackfin/include/asm/dma-mapping.h | 2 +-
arch/c6x/include/asm/dma-mapping.h | 2 +-
arch/cris/include/asm/dma-mapping.h | 4 ++--
arch/frv/include/asm/dma-mapping.h | 2 +-
arch/h8300/include/asm/dma-mapping.h | 2 +-
arch/hexagon/include/asm/dma-mapping.h | 5 +----
arch/ia64/include/asm/dma-mapping.h | 5 ++++-
arch/m32r/include/asm/dma-mapping.h | 4 +---
arch/m68k/include/asm/dma-mapping.h | 2 +-
arch/metag/include/asm/dma-mapping.h | 2 +-
arch/microblaze/include/asm/dma-mapping.h | 2 +-
arch/mips/include/asm/dma-mapping.h | 7 ++-----
arch/mn10300/include/asm/dma-mapping.h | 2 +-
arch/nios2/include/asm/dma-mapping.h | 2 +-
arch/openrisc/include/asm/dma-mapping.h | 2 +-
arch/parisc/include/asm/dma-mapping.h | 2 +-
arch/powerpc/include/asm/dma-mapping.h | 7 ++-----
arch/powerpc/include/asm/ps3.h | 2 +-
arch/s390/include/asm/dma-mapping.h | 4 +---
arch/sh/include/asm/dma-mapping.h | 2 +-
arch/sparc/include/asm/dma-mapping.h | 4 ++--
arch/tile/include/asm/dma-mapping.h | 7 ++-----
arch/unicore32/include/asm/dma-mapping.h | 2 +-
arch/x86/include/asm/dma-mapping.h | 9 +--------
arch/xtensa/include/asm/dma-mapping.h | 7 ++-----
include/linux/dma-mapping.h | 7 +++++++
31 files changed, 48 insertions(+), 64 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index d3480562411d..5d53666935e6 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
index fdff3aa60052..94285031c4fb 100644
--- a/arch/arc/include/asm/dma-mapping.h
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -20,7 +20,7 @@
extern const struct dma_map_ops arc_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &arc_dma_ops;
}
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index c7432d647e53..716656925975 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -23,12 +23,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &arm_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
if (xen_initial_domain())
return xen_dma_ops;
else
- return __generic_dma_ops(dev);
+ return __generic_dma_ops(NULL);
}
#define HAVE_ARCH_DMA_SUPPORTED 1
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 58ae36cc3b60..505756cdc67a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -39,12 +39,12 @@ static inline const struct dma_map_ops *__generic_dma_ops(struct device *dev)
return &dummy_dma_ops;
}
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
if (xen_initial_domain())
return xen_dma_ops;
else
- return __generic_dma_ops(dev);
+ return __generic_dma_ops(NULL);
}
void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index b2b43c0e0774..7388451f9905 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -6,7 +6,7 @@ extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
extern const struct dma_map_ops avr32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &avr32_dma_ops;
}
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index 320fb50fbd41..04254ac36bed 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@ _dma_sync(dma_addr_t addr, size_t size, enum dma_data_direction dir)
extern const struct dma_map_ops bfin_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &bfin_dma_ops;
}
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
index 88258b9ebc8e..aca9f755e4f8 100644
--- a/arch/c6x/include/asm/dma-mapping.h
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -19,7 +19,7 @@
extern const struct dma_map_ops c6x_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &c6x_dma_ops;
}
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index aae4fbc0a656..256169de3743 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -4,12 +4,12 @@
#ifdef CONFIG_PCI
extern const struct dma_map_ops v32_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &v32_dma_ops;
}
#else
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
BUG();
return NULL;
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 150cc00544a8..354900917585 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -9,7 +9,7 @@ extern unsigned long __nongprelbss dma_coherent_mem_end;
extern const struct dma_map_ops frv_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &frv_dma_ops;
}
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index f804bca4c13f..847c7562e046 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops h8300_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &h8300_dma_map_ops;
}
diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h
index b812e917cd95..d3a87bd9b686 100644
--- a/arch/hexagon/include/asm/dma-mapping.h
+++ b/arch/hexagon/include/asm/dma-mapping.h
@@ -34,11 +34,8 @@ extern int bad_dma_address;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (unlikely(dev == NULL))
- return NULL;
-
return dma_ops;
}
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 05e467d56d86..73ec3c6f4cfe 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -23,7 +23,10 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t,
extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int,
enum dma_data_direction);
-#define get_dma_ops(dev) platform_dma_get_ops(dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+ return platform_dma_get_ops(NULL);
+}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index 27b1597ac563..c01d9f52d228 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -10,10 +10,8 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 863509939d5a..9210e470771b 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops m68k_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &m68k_dma_ops;
}
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index c156a7ac732f..fad3dc3cb210 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -3,7 +3,7 @@
extern const struct dma_map_ops metag_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &metag_dma_ops;
}
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
index c7faf2fb51d6..3fad5e722a66 100644
--- a/arch/microblaze/include/asm/dma-mapping.h
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -38,7 +38,7 @@
*/
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &dma_direct_ops;
}
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index dad3b09fe993..aba71385f9d1 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -11,12 +11,9 @@
extern const struct dma_map_ops *mips_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return mips_dma_map_ops;
+ return mips_dma_map_ops;
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
diff --git a/arch/mn10300/include/asm/dma-mapping.h b/arch/mn10300/include/asm/dma-mapping.h
index 564e3927e005..737ef574b3ea 100644
--- a/arch/mn10300/include/asm/dma-mapping.h
+++ b/arch/mn10300/include/asm/dma-mapping.h
@@ -16,7 +16,7 @@
extern const struct dma_map_ops mn10300_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &mn10300_dma_ops;
}
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index aa00d839a64b..7b3c6f280293 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -12,7 +12,7 @@
extern const struct dma_map_ops nios2_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &nios2_dma_ops;
}
diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h
index 88acbedb4947..0c0075f17145 100644
--- a/arch/openrisc/include/asm/dma-mapping.h
+++ b/arch/openrisc/include/asm/dma-mapping.h
@@ -30,7 +30,7 @@
extern const struct dma_map_ops or1k_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &or1k_dma_map_ops;
}
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 1749073e44fc..5404c6a726b2 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -27,7 +27,7 @@ extern const struct dma_map_ops pcx_dma_ops;
extern const struct dma_map_ops *hppa_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return hppa_dma_ops;
}
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 8275603ba4d5..181a095468e4 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -78,17 +78,14 @@ extern struct dma_map_ops dma_iommu_ops;
#endif
extern const struct dma_map_ops dma_direct_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
/* We don't handle the NULL dev case for ISA for now. We could
* do it via an out of line call but it is not needed for now. The
* only ISA DMA device we support is the floppy and we have a hack
* in the floppy driver directly to get a device for us.
*/
- if (unlikely(dev == NULL))
- return NULL;
-
- return dev->dma_ops;
+ return NULL;
}
/*
diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index a19f831a4cc9..17ee719e799f 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -435,7 +435,7 @@ static inline void *ps3_system_bus_get_drvdata(
return dev_get_drvdata(&dev->core);
}
-/* These two need global scope for get_dma_ops(). */
+/* These two need global scope for get_arch_dma_ops(). */
extern struct bus_type ps3_system_bus_type;
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index a872027d0c1b..3108b8dbe266 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -12,10 +12,8 @@
extern const struct dma_map_ops s390_pci_dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
return &dma_noop_ops;
}
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index a7382c34c241..d99008af5f73 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -4,7 +4,7 @@
extern const struct dma_map_ops *dma_ops;
extern void no_iommu_init(void);
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return dma_ops;
}
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 3d2babc0c4c6..69cc627779f2 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -24,14 +24,14 @@ extern const struct dma_map_ops pci32_dma_ops;
extern struct bus_type pci_bus_type;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
#ifdef CONFIG_SPARC_LEON
if (sparc_cpu_model == sparc_leon)
return leon_dma_ops;
#endif
#if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
- if (dev->bus == &pci_bus_type)
+ if (bus == &pci_bus_type)
return &pci32_dma_ops;
#endif
return dma_ops;
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 2562995a6ac9..bbc71a29b2c6 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -29,12 +29,9 @@ extern const struct dma_map_ops *gx_pci_dma_map_ops;
extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops;
extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return tile_dma_map_ops;
+ return tile_dma_map_ops;
}
static inline dma_addr_t get_dma_offset(struct device *dev)
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 14d7729c7b73..518ba5848dd6 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -23,7 +23,7 @@
extern const struct dma_map_ops swiotlb_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
return &swiotlb_dma_map_ops;
}
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 94b5b96966cb..08a0838b83fb 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -27,16 +27,9 @@ extern int panic_on_overflow;
extern const struct dma_map_ops *dma_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
-#ifndef CONFIG_X86_DEV_DMA_OPS
return dma_ops;
-#else
- if (unlikely(!dev) || !dev->dma_ops)
- return dma_ops;
- else
- return dev->dma_ops;
-#endif
}
bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp);
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 9eecfc3c5dc4..c6140fa8c0be 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -20,12 +20,9 @@
extern const struct dma_map_ops xtensa_dma_map_ops;
-static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
- if (dev && dev->dma_ops)
- return dev->dma_ops;
- else
- return &xtensa_dma_map_ops;
+ return &xtensa_dma_map_ops;
}
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index e97f23e8b2d9..ab8710888ddf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -164,6 +164,13 @@ int dma_mmap_from_coherent(struct device *dev, struct vm_area_struct *vma,
#ifdef CONFIG_HAS_DMA
#include <asm/dma-mapping.h>
+static inline const struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+ if (dev && dev->dma_ops)
+ return dev->dma_ops;
+ return get_arch_dma_ops(dev ? dev->bus : NULL);
+}
+
static inline void set_dma_ops(struct device *dev,
const struct dma_map_ops *dma_ops)
{
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 05/37] lib/dma-noop: Clarify a comment
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 01/37] treewide: Constify most dma_map_ops structures Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 04/37] treewide: Consolidate get_dma_ops() implementations Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 06/37] lib/dma-noop: Only build dma_noop_ops for s390 and m32r Bart Van Assche
` (33 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Christian Borntraeger, Joerg Roedel, Andy Lutomirski,
Michael S . Tsirkin
The next patch in this series will introduce another set of DMA
operations that map 1:1 with memory. Clarify that dma-noop maps
to physical addresses.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Christian Borntraeger <borntraeger-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
Cc: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>
Cc: Andy Lutomirski <luto-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Michael S. Tsirkin <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
lib/dma-noop.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index 65e49dd35b7b..de26c8b68f34 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -1,7 +1,7 @@
/*
* lib/dma-noop.c
*
- * Simple DMA noop-ops that map 1:1 with memory
+ * DMA operations that map to physical addresses without flushing memory.
*/
#include <linux/export.h>
#include <linux/mm.h>
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 06/37] lib/dma-noop: Only build dma_noop_ops for s390 and m32r
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (2 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 05/37] lib/dma-noop: Clarify a comment Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 07/37] lib/dma-virt: Add dma_virt_ops Bart Van Assche
` (32 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Christian Borntraeger, Joerg Roedel, Andy Lutomirski,
Michael S . Tsirkin, Christoph Hellwig
Reduce the kernel size by only building dma_noop_ops for those
architectures that actually use it. This was suggested by
Christoph Hellwig.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Christian Borntraeger <borntraeger-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
Cc: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>
Cc: Andy Lutomirski <luto-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Michael S. Tsirkin <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
arch/m32r/Kconfig | 1 +
arch/s390/Kconfig | 1 +
lib/Kconfig | 5 +++++
lib/Makefile | 2 +-
4 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index d227a6988d6b..95474460b367 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -18,6 +18,7 @@ config M32R
select MODULES_USE_ELF_RELA
select HAVE_DEBUG_STACKOVERFLOW
select CPU_NO_EFFICIENT_FFS
+ select DMA_NOOP_OPS
config SBUS
bool
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index c6722112527d..38ad42358c41 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -137,6 +137,7 @@ config S390
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_API_DEBUG
select HAVE_DMA_CONTIGUOUS
+ select DMA_NOOP_OPS
select HAVE_DYNAMIC_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_EFFICIENT_UNALIGNED_ACCESS
diff --git a/lib/Kconfig b/lib/Kconfig
index 260a80e313b9..b6baf0609e8b 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -395,6 +395,11 @@ config HAS_DMA
depends on !NO_DMA
default y
+config DMA_NOOP_OPS
+ bool
+ depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
+ default n
+
config CHECK_SIGNATURE
bool
diff --git a/lib/Makefile b/lib/Makefile
index bc4073a8cd08..ada06d5652e8 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -26,7 +26,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
lib-$(CONFIG_MMU) += ioremap.o
lib-$(CONFIG_SMP) += cpumask.o
-lib-$(CONFIG_HAS_DMA) += dma-noop.o
+lib-$(CONFIG_DMA_NOOP_OPS) += dma-noop.o
lib-y += kobject.o klist.o
obj-y += lockref.o
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 07/37] lib/dma-virt: Add dma_virt_ops
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (3 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 06/37] lib/dma-noop: Only build dma_noop_ops for s390 and m32r Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-8-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 08/37] IB/core: Remove ib_dma_*map_single_attrs() Bart Van Assche
` (31 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Christian Borntraeger, Joerg Roedel, Andy Lutomirski,
Michael S . Tsirkin
Several RDMA drivers (hfi1, qib and rxe) expect that ib_sge.addr
is a virtual address. Provide DMA mapping operations that are
suitable for these drivers.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Christian Borntraeger <borntraeger-tA70FqPdS9bQT0dZR+AlfA@public.gmane.org>
Cc: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>
Cc: Andy Lutomirski <luto-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Michael S. Tsirkin <mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
include/linux/dma-mapping.h | 1 +
lib/Kconfig | 5 ++++
lib/Makefile | 1 +
lib/dma-virt.c | 72 +++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 79 insertions(+)
create mode 100644 lib/dma-virt.c
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ab8710888ddf..426c43d4fdbf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -128,6 +128,7 @@ struct dma_map_ops {
};
extern const struct dma_map_ops dma_noop_ops;
+extern const struct dma_map_ops dma_virt_ops;
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
diff --git a/lib/Kconfig b/lib/Kconfig
index b6baf0609e8b..97af23b26f33 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -400,6 +400,11 @@ config DMA_NOOP_OPS
depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
default n
+config DMA_VIRT_OPS
+ bool
+ depends on HAS_DMA && (!64BIT || ARCH_DMA_ADDR_T_64BIT)
+ default n
+
config CHECK_SIGNATURE
bool
diff --git a/lib/Makefile b/lib/Makefile
index ada06d5652e8..b97e9a814854 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -27,6 +27,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
lib-$(CONFIG_MMU) += ioremap.o
lib-$(CONFIG_SMP) += cpumask.o
lib-$(CONFIG_DMA_NOOP_OPS) += dma-noop.o
+lib-$(CONFIG_DMA_VIRT_OPS) += dma-virt.o
lib-y += kobject.o klist.o
obj-y += lockref.o
diff --git a/lib/dma-virt.c b/lib/dma-virt.c
new file mode 100644
index 000000000000..dcd4df1f7174
--- /dev/null
+++ b/lib/dma-virt.c
@@ -0,0 +1,72 @@
+/*
+ * lib/dma-virt.c
+ *
+ * DMA operations that map to virtual addresses without flushing memory.
+ */
+#include <linux/export.h>
+#include <linux/mm.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+
+static void *dma_virt_alloc(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t gfp,
+ unsigned long attrs)
+{
+ void *ret;
+
+ ret = (void *)__get_free_pages(gfp, get_order(size));
+ if (ret)
+ *dma_handle = (uintptr_t)ret;
+ return ret;
+}
+
+static void dma_virt_free(struct device *dev, size_t size,
+ void *cpu_addr, dma_addr_t dma_addr,
+ unsigned long attrs)
+{
+ free_pages((unsigned long)cpu_addr, get_order(size));
+}
+
+static dma_addr_t dma_virt_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ return (uintptr_t)(page_address(page) + offset);
+}
+
+static int dma_virt_map_sg(struct device *dev, struct scatterlist *sgl,
+ int nents, enum dma_data_direction dir,
+ unsigned long attrs)
+{
+ int i;
+ struct scatterlist *sg;
+
+ for_each_sg(sgl, sg, nents, i) {
+ BUG_ON(!sg_page(sg));
+ sg_dma_address(sg) = (uintptr_t)sg_virt(sg);
+ sg_dma_len(sg) = sg->length;
+ }
+
+ return nents;
+}
+
+static int dma_virt_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+ return false;
+}
+
+static int dma_virt_supported(struct device *dev, u64 mask)
+{
+ return true;
+}
+
+const struct dma_map_ops dma_virt_ops = {
+ .alloc = dma_virt_alloc,
+ .free = dma_virt_free,
+ .map_page = dma_virt_map_page,
+ .map_sg = dma_virt_map_sg,
+ .mapping_error = dma_virt_mapping_error,
+ .dma_supported = dma_virt_supported,
+};
+EXPORT_SYMBOL(dma_virt_ops);
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 08/37] IB/core: Remove ib_dma_*map_single_attrs()
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (4 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 07/37] lib/dma-virt: Add dma_virt_ops Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 09/37] RDS: IB: Remove an unused structure member Bart Van Assche
` (30 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche
Remove these functions because these are not used. Additionally, the
implementation of these functions is not correct for the hfi1, qib and
rxe drivers because dma_device is used instead of dma_ops.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
---
include/rdma/ib_verbs.h | 18 ------------------
1 file changed, 18 deletions(-)
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 958a24d8fae7..8b9a3767f695 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -3004,24 +3004,6 @@ static inline void ib_dma_unmap_single(struct ib_device *dev,
dma_unmap_single(dev->dma_device, addr, size, direction);
}
-static inline u64 ib_dma_map_single_attrs(struct ib_device *dev,
- void *cpu_addr, size_t size,
- enum dma_data_direction direction,
- unsigned long dma_attrs)
-{
- return dma_map_single_attrs(dev->dma_device, cpu_addr, size,
- direction, dma_attrs);
-}
-
-static inline void ib_dma_unmap_single_attrs(struct ib_device *dev,
- u64 addr, size_t size,
- enum dma_data_direction direction,
- unsigned long dma_attrs)
-{
- return dma_unmap_single_attrs(dev->dma_device, addr, size,
- direction, dma_attrs);
-}
-
/**
* ib_dma_map_page - Map a physical page to DMA address
* @dev: The device for which the dma_addr is to be created
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 09/37] RDS: IB: Remove an unused structure member
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (5 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 08/37] IB/core: Remove ib_dma_*map_single_attrs() Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 10/37] IB/core: Change the type of an ib_dma_alloc_coherent() argument Bart Van Assche
` (29 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
David S . Miller, netdev-u79uwXL29TY76Z2rM5mHXA,
rds-devel-N0ozoZBvEnrZJqsBc5GL+g
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: David S. Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: rds-devel-N0ozoZBvEnrZJqsBc5GL+g@public.gmane.org
---
net/rds/ib_mr.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/net/rds/ib_mr.h b/net/rds/ib_mr.h
index 1c754f4acbe5..24c086db4511 100644
--- a/net/rds/ib_mr.h
+++ b/net/rds/ib_mr.h
@@ -45,7 +45,6 @@
struct rds_ib_fmr {
struct ib_fmr *fmr;
- u64 *dma;
};
enum rds_ib_fr_state {
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 10/37] IB/core: Change the type of an ib_dma_alloc_coherent() argument
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (6 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 09/37] RDS: IB: Remove an unused structure member Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 11/37] IB/hf1: Remove DMA mapping code Bart Van Assche
` (28 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche
Change the type of the dma_handle argument from u64 * to dma_addr_t *.
This patch does not change any functionality.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
---
include/rdma/ib_verbs.h | 13 ++++++-------
net/rds/ib.h | 6 +++---
2 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 8b9a3767f695..fd4e42dd1efc 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -3171,19 +3171,18 @@ static inline void ib_dma_sync_single_for_device(struct ib_device *dev,
*/
static inline void *ib_dma_alloc_coherent(struct ib_device *dev,
size_t size,
- u64 *dma_handle,
+ dma_addr_t *dma_handle,
gfp_t flag)
{
- if (dev->dma_ops)
- return dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag);
- else {
- dma_addr_t handle;
+ if (dev->dma_ops) {
+ u64 handle;
void *ret;
- ret = dma_alloc_coherent(dev->dma_device, size, &handle, flag);
+ ret = dev->dma_ops->alloc_coherent(dev, size, &handle, flag);
*dma_handle = handle;
return ret;
}
+ return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag);
}
/**
@@ -3195,7 +3194,7 @@ static inline void *ib_dma_alloc_coherent(struct ib_device *dev,
*/
static inline void ib_dma_free_coherent(struct ib_device *dev,
size_t size, void *cpu_addr,
- u64 dma_handle)
+ dma_addr_t dma_handle)
{
if (dev->dma_ops)
dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
diff --git a/net/rds/ib.h b/net/rds/ib.h
index 45ac8e8e58f4..d21ca88ab628 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -134,7 +134,7 @@ struct rds_ib_connection {
struct rds_ib_work_ring i_send_ring;
struct rm_data_op *i_data_op;
struct rds_header *i_send_hdrs;
- u64 i_send_hdrs_dma;
+ dma_addr_t i_send_hdrs_dma;
struct rds_ib_send_work *i_sends;
atomic_t i_signaled_sends;
@@ -144,7 +144,7 @@ struct rds_ib_connection {
struct rds_ib_incoming *i_ibinc;
u32 i_recv_data_rem;
struct rds_header *i_recv_hdrs;
- u64 i_recv_hdrs_dma;
+ dma_addr_t i_recv_hdrs_dma;
struct rds_ib_recv_work *i_recvs;
u64 i_ack_recv; /* last ACK received */
struct rds_ib_refill_cache i_cache_incs;
@@ -161,7 +161,7 @@ struct rds_ib_connection {
struct rds_header *i_ack;
struct ib_send_wr i_ack_wr;
struct ib_sge i_ack_sge;
- u64 i_ack_dma;
+ dma_addr_t i_ack_dma;
unsigned long i_ack_queued;
/* Flow control related information
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 11/37] IB/hf1: Remove DMA mapping code
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (7 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 10/37] IB/core: Change the type of an ib_dma_alloc_coherent() argument Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 12/37] IB/qib: " Bart Van Assche
` (27 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Dennis Dalessandro, Dean Luick
The hfi1 DMA mapping code has never been built in any upstream kernel.
Hence remove it.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Dean Luick <dean.luick-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/hw/hfi1/dma.c | 183 ---------------------------------------
1 file changed, 183 deletions(-)
delete mode 100644 drivers/infiniband/hw/hfi1/dma.c
diff --git a/drivers/infiniband/hw/hfi1/dma.c b/drivers/infiniband/hw/hfi1/dma.c
deleted file mode 100644
index 7e8dab892848..000000000000
--- a/drivers/infiniband/hw/hfi1/dma.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Copyright(c) 2015, 2016 Intel Corporation.
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * BSD LICENSE
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * - Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-#include <linux/types.h>
-#include <linux/scatterlist.h>
-
-#include "verbs.h"
-
-#define BAD_DMA_ADDRESS ((u64)0)
-
-/*
- * The following functions implement driver specific replacements
- * for the ib_dma_*() functions.
- *
- * These functions return kernel virtual addresses instead of
- * device bus addresses since the driver uses the CPU to copy
- * data instead of using hardware DMA.
- */
-
-static int hfi1_mapping_error(struct ib_device *dev, u64 dma_addr)
-{
- return dma_addr == BAD_DMA_ADDRESS;
-}
-
-static u64 hfi1_dma_map_single(struct ib_device *dev, void *cpu_addr,
- size_t size, enum dma_data_direction direction)
-{
- if (WARN_ON(!valid_dma_direction(direction)))
- return BAD_DMA_ADDRESS;
-
- return (u64)cpu_addr;
-}
-
-static void hfi1_dma_unmap_single(struct ib_device *dev, u64 addr, size_t size,
- enum dma_data_direction direction)
-{
- /* This is a stub, nothing to be done here */
-}
-
-static u64 hfi1_dma_map_page(struct ib_device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- u64 addr;
-
- if (WARN_ON(!valid_dma_direction(direction)))
- return BAD_DMA_ADDRESS;
-
- if (offset + size > PAGE_SIZE)
- return BAD_DMA_ADDRESS;
-
- addr = (u64)page_address(page);
- if (addr)
- addr += offset;
-
- return addr;
-}
-
-static void hfi1_dma_unmap_page(struct ib_device *dev, u64 addr, size_t size,
- enum dma_data_direction direction)
-{
- /* This is a stub, nothing to be done here */
-}
-
-static int hfi1_map_sg(struct ib_device *dev, struct scatterlist *sgl,
- int nents, enum dma_data_direction direction)
-{
- struct scatterlist *sg;
- u64 addr;
- int i;
- int ret = nents;
-
- if (WARN_ON(!valid_dma_direction(direction)))
- return BAD_DMA_ADDRESS;
-
- for_each_sg(sgl, sg, nents, i) {
- addr = (u64)page_address(sg_page(sg));
- if (!addr) {
- ret = 0;
- break;
- }
- sg->dma_address = addr + sg->offset;
-#ifdef CONFIG_NEED_SG_DMA_LENGTH
- sg->dma_length = sg->length;
-#endif
- }
- return ret;
-}
-
-static void hfi1_unmap_sg(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
-{
- /* This is a stub, nothing to be done here */
-}
-
-static void hfi1_sync_single_for_cpu(struct ib_device *dev, u64 addr,
- size_t size, enum dma_data_direction dir)
-{
-}
-
-static void hfi1_sync_single_for_device(struct ib_device *dev, u64 addr,
- size_t size,
- enum dma_data_direction dir)
-{
-}
-
-static void *hfi1_dma_alloc_coherent(struct ib_device *dev, size_t size,
- u64 *dma_handle, gfp_t flag)
-{
- struct page *p;
- void *addr = NULL;
-
- p = alloc_pages(flag, get_order(size));
- if (p)
- addr = page_address(p);
- if (dma_handle)
- *dma_handle = (u64)addr;
- return addr;
-}
-
-static void hfi1_dma_free_coherent(struct ib_device *dev, size_t size,
- void *cpu_addr, u64 dma_handle)
-{
- free_pages((unsigned long)cpu_addr, get_order(size));
-}
-
-struct ib_dma_mapping_ops hfi1_dma_mapping_ops = {
- .mapping_error = hfi1_mapping_error,
- .map_single = hfi1_dma_map_single,
- .unmap_single = hfi1_dma_unmap_single,
- .map_page = hfi1_dma_map_page,
- .unmap_page = hfi1_dma_unmap_page,
- .map_sg = hfi1_map_sg,
- .unmap_sg = hfi1_unmap_sg,
- .sync_single_for_cpu = hfi1_sync_single_for_cpu,
- .sync_single_for_device = hfi1_sync_single_for_device,
- .alloc_coherent = hfi1_dma_alloc_coherent,
- .free_coherent = hfi1_dma_free_coherent
-};
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 12/37] IB/qib: Remove DMA mapping code
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (8 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 11/37] IB/hf1: Remove DMA mapping code Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 13/37] IB/core: Initialize ib_device.dev.parent earlier Bart Van Assche
` (26 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Mike Marciniszyn, Dennis Dalessandro
The qib DMA mapping code is no longer built since commit eb636ac0e49e
("IB/qib: Remove dma.c and use rdmavt version of dma functions"). Hence
remove it.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Mike Marciniszyn <mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/hw/qib/qib_dma.c | 169 -----------------------------------
drivers/infiniband/hw/qib/qib_keys.c | 5 +-
2 files changed, 1 insertion(+), 173 deletions(-)
delete mode 100644 drivers/infiniband/hw/qib/qib_dma.c
diff --git a/drivers/infiniband/hw/qib/qib_dma.c b/drivers/infiniband/hw/qib/qib_dma.c
deleted file mode 100644
index 59fe092b4b0f..000000000000
--- a/drivers/infiniband/hw/qib/qib_dma.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * Copyright (c) 2006, 2009, 2010 QLogic, Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-#include <linux/types.h>
-#include <linux/scatterlist.h>
-
-#include "qib_verbs.h"
-
-#define BAD_DMA_ADDRESS ((u64) 0)
-
-/*
- * The following functions implement driver specific replacements
- * for the ib_dma_*() functions.
- *
- * These functions return kernel virtual addresses instead of
- * device bus addresses since the driver uses the CPU to copy
- * data instead of using hardware DMA.
- */
-
-static int qib_mapping_error(struct ib_device *dev, u64 dma_addr)
-{
- return dma_addr == BAD_DMA_ADDRESS;
-}
-
-static u64 qib_dma_map_single(struct ib_device *dev, void *cpu_addr,
- size_t size, enum dma_data_direction direction)
-{
- BUG_ON(!valid_dma_direction(direction));
- return (u64) cpu_addr;
-}
-
-static void qib_dma_unmap_single(struct ib_device *dev, u64 addr, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(!valid_dma_direction(direction));
-}
-
-static u64 qib_dma_map_page(struct ib_device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- u64 addr;
-
- BUG_ON(!valid_dma_direction(direction));
-
- if (offset + size > PAGE_SIZE) {
- addr = BAD_DMA_ADDRESS;
- goto done;
- }
-
- addr = (u64) page_address(page);
- if (addr)
- addr += offset;
- /* TODO: handle highmem pages */
-
-done:
- return addr;
-}
-
-static void qib_dma_unmap_page(struct ib_device *dev, u64 addr, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(!valid_dma_direction(direction));
-}
-
-static int qib_map_sg(struct ib_device *dev, struct scatterlist *sgl,
- int nents, enum dma_data_direction direction)
-{
- struct scatterlist *sg;
- u64 addr;
- int i;
- int ret = nents;
-
- BUG_ON(!valid_dma_direction(direction));
-
- for_each_sg(sgl, sg, nents, i) {
- addr = (u64) page_address(sg_page(sg));
- /* TODO: handle highmem pages */
- if (!addr) {
- ret = 0;
- break;
- }
- sg->dma_address = addr + sg->offset;
-#ifdef CONFIG_NEED_SG_DMA_LENGTH
- sg->dma_length = sg->length;
-#endif
- }
- return ret;
-}
-
-static void qib_unmap_sg(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
-{
- BUG_ON(!valid_dma_direction(direction));
-}
-
-static void qib_sync_single_for_cpu(struct ib_device *dev, u64 addr,
- size_t size, enum dma_data_direction dir)
-{
-}
-
-static void qib_sync_single_for_device(struct ib_device *dev, u64 addr,
- size_t size,
- enum dma_data_direction dir)
-{
-}
-
-static void *qib_dma_alloc_coherent(struct ib_device *dev, size_t size,
- u64 *dma_handle, gfp_t flag)
-{
- struct page *p;
- void *addr = NULL;
-
- p = alloc_pages(flag, get_order(size));
- if (p)
- addr = page_address(p);
- if (dma_handle)
- *dma_handle = (u64) addr;
- return addr;
-}
-
-static void qib_dma_free_coherent(struct ib_device *dev, size_t size,
- void *cpu_addr, u64 dma_handle)
-{
- free_pages((unsigned long) cpu_addr, get_order(size));
-}
-
-struct ib_dma_mapping_ops qib_dma_mapping_ops = {
- .mapping_error = qib_mapping_error,
- .map_single = qib_dma_map_single,
- .unmap_single = qib_dma_unmap_single,
- .map_page = qib_dma_map_page,
- .unmap_page = qib_dma_unmap_page,
- .map_sg = qib_map_sg,
- .unmap_sg = qib_unmap_sg,
- .sync_single_for_cpu = qib_sync_single_for_cpu,
- .sync_single_for_device = qib_sync_single_for_device,
- .alloc_coherent = qib_dma_alloc_coherent,
- .free_coherent = qib_dma_free_coherent
-};
diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c
index 2c3c93572c17..8fdf79f8d4e4 100644
--- a/drivers/infiniband/hw/qib/qib_keys.c
+++ b/drivers/infiniband/hw/qib/qib_keys.c
@@ -158,10 +158,7 @@ int qib_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge,
unsigned n, m;
size_t off;
- /*
- * We use RKEY == zero for kernel virtual addresses
- * (see qib_get_dma_mr and qib_dma.c).
- */
+ /* We use RKEY == zero for kernel virtual addresses */
rcu_read_lock();
if (rkey == 0) {
struct rvt_pd *pd = ibpd_to_rvtpd(qp->ibqp.pd);
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 13/37] IB/core: Initialize ib_device.dev.parent earlier
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (9 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 12/37] IB/qib: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 14/37] IB/core: Use dev.parent instead of dma_device Bart Van Assche
` (25 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche
Move the ib_device.dev.parent initialization code from
ib_device_register_sysfs() to ib_register_device(). Additionally,
allow HBA drivers to set ib_device.dev.parent without setting
ib_device.dma_device. This is the first step towards removing
ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
---
drivers/infiniband/core/device.c | 8 ++++++++
drivers/infiniband/core/sysfs.c | 2 +-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 571974cd3919..d543c4390447 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -334,6 +334,14 @@ int ib_register_device(struct ib_device *device,
struct ib_client *client;
struct ib_udata uhw = {.outlen = 0, .inlen = 0};
+ WARN_ON_ONCE(!device->dev.parent && !device->dma_device);
+ WARN_ON_ONCE(device->dev.parent && device->dma_device
+ && device->dev.parent != device->dma_device);
+ if (!device->dev.parent)
+ device->dev.parent = device->dma_device;
+ if (!device->dma_device)
+ device->dma_device = device->dev.parent;
+
mutex_lock(&device_mutex);
if (strchr(device->name, '%')) {
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index c1fb545e8d78..daadf3130c9f 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -1258,7 +1258,7 @@ int ib_device_register_sysfs(struct ib_device *device,
int ret;
int i;
- device->dev.parent = device->dma_device;
+ WARN_ON_ONCE(!device->dev.parent);
ret = dev_set_name(class_dev, "%s", device->name);
if (ret)
return ret;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 14/37] IB/core: Use dev.parent instead of dma_device
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (10 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 13/37] IB/core: Initialize ib_device.dev.parent earlier Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 15/37] IB/cxgb3: Set " Bart Van Assche
` (24 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
---
drivers/infiniband/core/ucm.c | 2 +-
drivers/infiniband/core/user_mad.c | 4 ++--
drivers/infiniband/core/uverbs_main.c | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index e0a995b85a2d..cc0d51fb06e3 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -1290,7 +1290,7 @@ static void ib_ucm_add_one(struct ib_device *device)
goto err;
ucm_dev->dev.class = &cm_class;
- ucm_dev->dev.parent = device->dma_device;
+ ucm_dev->dev.parent = device->dev.parent;
ucm_dev->dev.devt = ucm_dev->cdev.dev;
ucm_dev->dev.release = ib_ucm_release_dev;
dev_set_name(&ucm_dev->dev, "ucm%d", ucm_dev->devnum);
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 249b403b43a4..aca7ff7abedc 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -1188,7 +1188,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
if (cdev_add(&port->cdev, base, 1))
goto err_cdev;
- port->dev = device_create(umad_class, device->dma_device,
+ port->dev = device_create(umad_class, device->dev.parent,
port->cdev.dev, port,
"umad%d", port->dev_num);
if (IS_ERR(port->dev))
@@ -1207,7 +1207,7 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
if (cdev_add(&port->sm_cdev, base, 1))
goto err_sm_cdev;
- port->sm_dev = device_create(umad_class, device->dma_device,
+ port->sm_dev = device_create(umad_class, device->dev.parent,
port->sm_cdev.dev, port,
"issm%d", port->dev_num);
if (IS_ERR(port->sm_dev))
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index b3f95d453fba..e3fb4b1af1ad 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -1174,7 +1174,7 @@ static void ib_uverbs_add_one(struct ib_device *device)
if (cdev_add(&uverbs_dev->cdev, base, 1))
goto err_cdev;
- uverbs_dev->dev = device_create(uverbs_class, device->dma_device,
+ uverbs_dev->dev = device_create(uverbs_class, device->dev.parent,
uverbs_dev->cdev.dev, uverbs_dev,
"uverbs%d", uverbs_dev->devnum);
if (IS_ERR(uverbs_dev->dev))
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 15/37] IB/cxgb3: Set dev.parent instead of dma_device
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (11 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 14/37] IB/core: Use dev.parent instead of dma_device Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-16-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 16/37] IB/cxgb4: " Bart Van Assche
` (23 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Steve Wise
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Steve Wise <swise-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
---
drivers/infiniband/hw/cxgb3/iwch_provider.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 9d5fe1853da4..8db71dcb4599 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -1401,7 +1401,7 @@ int iwch_register_device(struct iwch_dev *dev)
memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
dev->ibdev.num_comp_vectors = 1;
- dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
+ dev->ibdev.dev.parent = &dev->rdev.rnic_info.pdev->dev;
dev->ibdev.query_device = iwch_query_device;
dev->ibdev.query_port = iwch_query_port;
dev->ibdev.query_pkey = iwch_query_pkey;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 16/37] IB/cxgb4: Set dev.parent instead of dma_device
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (12 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 15/37] IB/cxgb3: Set " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-17-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 17/37] IB/hfi1: Switch from dma_device to dev.parent Bart Van Assche
` (22 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Hariprasad S
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Hariprasad S <hariprasad-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
---
drivers/infiniband/hw/cxgb4/provider.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
index 49b51b7e0fd7..6daf6d95e620 100644
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -569,7 +569,7 @@ int c4iw_register_device(struct c4iw_dev *dev)
memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq;
- dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev);
+ dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev;
dev->ibdev.query_device = c4iw_query_device;
dev->ibdev.query_port = c4iw_query_port;
dev->ibdev.query_pkey = c4iw_query_pkey;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 17/37] IB/hfi1: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (13 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 16/37] IB/cxgb4: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 18/37] IB/hns: " Bart Van Assche
` (21 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Mike Marciniszyn, Dennis Dalessandro
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Mike Marciniszyn <mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/hw/hfi1/mad.c | 2 +-
drivers/infiniband/hw/hfi1/verbs.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c
index 6e595afca24c..09cda3c35e82 100644
--- a/drivers/infiniband/hw/hfi1/mad.c
+++ b/drivers/infiniband/hw/hfi1/mad.c
@@ -4406,7 +4406,7 @@ int hfi1_process_mad(struct ib_device *ibdev, int mad_flags, u8 port,
switch (in_mad->base_version) {
case OPA_MGMT_BASE_VERSION:
if (unlikely(in_mad_size != sizeof(struct opa_mad))) {
- dev_err(ibdev->dma_device, "invalid in_mad_size\n");
+ dev_err(ibdev->dev.parent, "invalid in_mad_size\n");
return IB_MAD_RESULT_FAILURE;
}
return hfi1_process_opa_mad(ibdev, mad_flags, port,
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index 95ed4d6da510..2c9efae72972 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -1784,7 +1784,7 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
strlcpy(ibdev->name + lcpysz, "_%d", IB_DEVICE_NAME_MAX - lcpysz);
ibdev->owner = THIS_MODULE;
ibdev->phys_port_cnt = dd->num_pports;
- ibdev->dma_device = &dd->pcidev->dev;
+ ibdev->dev.parent = &dd->pcidev->dev;
ibdev->modify_device = modify_device;
ibdev->alloc_hw_stats = alloc_hw_stats;
ibdev->get_hw_stats = get_hw_stats;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 18/37] IB/hns: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (14 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 17/37] IB/hfi1: Switch from dma_device to dev.parent Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 19/37] IB/i40iw: Remove a superfluous assignment statement Bart Van Assche
` (20 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Lijun Ou,
Wei Hu
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Lijun Ou <oulijun-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
Cc: Wei Hu(Xavier) <xavier.huwei-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
---
drivers/infiniband/hw/hns/hns_roce_main.c | 2 +-
drivers/infiniband/hw/hns/hns_roce_qp.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index 4953d9cb83a7..066937749144 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -437,7 +437,7 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev)
ib_dev->owner = THIS_MODULE;
ib_dev->node_type = RDMA_NODE_IB_CA;
- ib_dev->dma_device = dev;
+ ib_dev->dev.parent = dev;
ib_dev->phys_port_cnt = hr_dev->caps.num_ports;
ib_dev->local_dma_lkey = hr_dev->caps.reserved_lkey;
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index f036f32f15d3..3f44f2f91f03 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -101,7 +101,7 @@ static void hns_roce_ib_qp_event(struct hns_roce_qp *hr_qp,
event.event = IB_EVENT_QP_ACCESS_ERR;
break;
default:
- dev_dbg(ibqp->device->dma_device, "roce_ib: Unexpected event type %d on QP %06lx\n",
+ dev_dbg(ibqp->device->dev.parent, "roce_ib: Unexpected event type %d on QP %06lx\n",
type, hr_qp->qpn);
return;
}
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 19/37] IB/i40iw: Remove a superfluous assignment statement
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (15 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 18/37] IB/hns: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-20-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 20/37] IB/mlx4: Switch from dma_device to dev.parent Bart Van Assche
` (19 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Faisal Latif,
Shiraz Saleem
Due to a previous patch initializing ib_device.dev.parent is
sufficient and initializing dma_device is no longer needed.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Faisal Latif <faisal.latif-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Shiraz Saleem <shiraz.saleem-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/hw/i40iw/i40iw_verbs.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index 29e97df9e1a7..428088cdc32f 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -2767,7 +2767,6 @@ static struct i40iw_ib_device *i40iw_init_rdma_device(struct i40iw_device *iwdev
(1ull << IB_USER_VERBS_CMD_POST_SEND);
iwibdev->ibdev.phys_port_cnt = 1;
iwibdev->ibdev.num_comp_vectors = iwdev->ceqs_count;
- iwibdev->ibdev.dma_device = &pcidev->dev;
iwibdev->ibdev.dev.parent = &pcidev->dev;
iwibdev->ibdev.query_port = i40iw_query_port;
iwibdev->ibdev.modify_port = i40iw_modify_port;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 20/37] IB/mlx4: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (16 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 19/37] IB/i40iw: Remove a superfluous assignment statement Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 21/37] IB/mlx5: " Bart Van Assche
` (18 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Yishai Hadas
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Yishai Hadas <yishaih-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/hw/mlx4/main.c | 2 +-
drivers/infiniband/hw/mlx4/mlx4_ib.h | 2 +-
drivers/infiniband/hw/mlx4/mr.c | 6 +++---
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 7031a8dd4d14..369d254bafeb 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -2625,7 +2625,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
ibdev->ib_dev.phys_port_cnt = mlx4_is_bonded(dev) ?
1 : ibdev->num_ports;
ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
- ibdev->ib_dev.dma_device = &dev->persist->pdev->dev;
+ ibdev->ib_dev.dev.parent = &dev->persist->pdev->dev;
ibdev->ib_dev.get_netdev = mlx4_ib_get_netdev;
ibdev->ib_dev.add_gid = mlx4_ib_add_gid;
ibdev->ib_dev.del_gid = mlx4_ib_del_gid;
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 7f3d976d81ed..64fed44b43a6 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -55,7 +55,7 @@
#define pr_fmt(fmt) "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
#define mlx4_ib_warn(ibdev, format, arg...) \
- dev_warn((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
+ dev_warn((ibdev)->dev.parent, MLX4_IB_DRV_NAME ": " format, ## arg)
enum {
MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index 5d73989d9771..433bcdbdd680 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -292,10 +292,10 @@ mlx4_alloc_priv_pages(struct ib_device *device,
if (!mr->pages)
return -ENOMEM;
- mr->page_map = dma_map_single(device->dma_device, mr->pages,
+ mr->page_map = dma_map_single(device->dev.parent, mr->pages,
mr->page_map_size, DMA_TO_DEVICE);
- if (dma_mapping_error(device->dma_device, mr->page_map)) {
+ if (dma_mapping_error(device->dev.parent, mr->page_map)) {
ret = -ENOMEM;
goto err;
}
@@ -313,7 +313,7 @@ mlx4_free_priv_pages(struct mlx4_ib_mr *mr)
if (mr->pages) {
struct ib_device *device = mr->ibmr.device;
- dma_unmap_single(device->dma_device, mr->page_map,
+ dma_unmap_single(device->dev.parent, mr->page_map,
mr->page_map_size, DMA_TO_DEVICE);
free_page((unsigned long)mr->pages);
mr->pages = NULL;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 21/37] IB/mlx5: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (17 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 20/37] IB/mlx4: Switch from dma_device to dev.parent Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-22-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 22/37] IB/mthca: " Bart Van Assche
` (17 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Matan Barak,
Leon Romanovsky
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/hw/mlx5/main.c | 2 +-
drivers/infiniband/hw/mlx5/mr.c | 14 +++++++-------
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index d566f6738833..da3bf6c081de 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -3075,7 +3075,7 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
dev->ib_dev.phys_port_cnt = dev->num_ports;
dev->ib_dev.num_comp_vectors =
dev->mdev->priv.eq_table.num_comp_vectors;
- dev->ib_dev.dma_device = &mdev->pdev->dev;
+ dev->ib_dev.dev.parent = &mdev->pdev->dev;
dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION;
dev->ib_dev.uverbs_cmd_mask =
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 8f608debe141..87ca81b85fd0 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -767,7 +767,7 @@ static int dma_map_mr_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
__be64 **mr_pas, dma_addr_t *dma)
{
__be64 *pas;
- struct device *ddev = dev->ib_dev.dma_device;
+ struct device *ddev = dev->ib_dev.dev.parent;
/*
* UMR copies MTTs in units of MLX5_UMR_MTT_ALIGNMENT bytes.
@@ -896,7 +896,7 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem,
int page_shift, int order, int access_flags)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
- struct device *ddev = dev->ib_dev.dma_device;
+ struct device *ddev = dev->ib_dev.dev.parent;
struct umr_common *umrc = &dev->umrc;
struct mlx5_ib_umr_context umr_context;
struct mlx5_umr_wr umrwr = {};
@@ -974,7 +974,7 @@ int mlx5_ib_update_mtt(struct mlx5_ib_mr *mr, u64 start_page_index, int npages,
int zap)
{
struct mlx5_ib_dev *dev = mr->dev;
- struct device *ddev = dev->ib_dev.dma_device;
+ struct device *ddev = dev->ib_dev.dev.parent;
struct umr_common *umrc = &dev->umrc;
struct mlx5_ib_umr_context umr_context;
struct ib_umem *umem = mr->umem;
@@ -1288,7 +1288,7 @@ static int rereg_umr(struct ib_pd *pd, struct mlx5_ib_mr *mr, u64 virt_addr,
int access_flags, int flags)
{
struct mlx5_ib_dev *dev = to_mdev(pd->device);
- struct device *ddev = dev->ib_dev.dma_device;
+ struct device *ddev = dev->ib_dev.dev.parent;
struct mlx5_ib_umr_context umr_context;
struct ib_send_wr *bad;
struct mlx5_umr_wr umrwr = {};
@@ -1461,9 +1461,9 @@ mlx5_alloc_priv_descs(struct ib_device *device,
mr->descs = PTR_ALIGN(mr->descs_alloc, MLX5_UMR_ALIGN);
- mr->desc_map = dma_map_single(device->dma_device, mr->descs,
+ mr->desc_map = dma_map_single(device->dev.parent, mr->descs,
size, DMA_TO_DEVICE);
- if (dma_mapping_error(device->dma_device, mr->desc_map)) {
+ if (dma_mapping_error(device->dev.parent, mr->desc_map)) {
ret = -ENOMEM;
goto err;
}
@@ -1482,7 +1482,7 @@ mlx5_free_priv_descs(struct mlx5_ib_mr *mr)
struct ib_device *device = mr->ibmr.device;
int size = mr->max_descs * mr->desc_size;
- dma_unmap_single(device->dma_device, mr->desc_map,
+ dma_unmap_single(device->dev.parent, mr->desc_map,
size, DMA_TO_DEVICE);
kfree(mr->descs_alloc);
mr->descs = NULL;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 22/37] IB/mthca: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (18 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 21/37] IB/mlx5: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 23/37] IB/nes: Remove a superfluous assignment statement Bart Van Assche
` (16 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
---
drivers/infiniband/hw/mthca/mthca_provider.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index d31708742ba5..8ebfa959c425 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1223,7 +1223,7 @@ int mthca_register_device(struct mthca_dev *dev)
dev->ib_dev.node_type = RDMA_NODE_IB_CA;
dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
dev->ib_dev.num_comp_vectors = 1;
- dev->ib_dev.dma_device = &dev->pdev->dev;
+ dev->ib_dev.dev.parent = &dev->pdev->dev;
dev->ib_dev.query_device = mthca_query_device;
dev->ib_dev.query_port = mthca_query_port;
dev->ib_dev.modify_device = mthca_modify_device;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 23/37] IB/nes: Remove a superfluous assignment statement
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (19 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 22/37] IB/mthca: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 24/37] IB/ocrdma: Switch from dma_device to dev.parent Bart Van Assche
` (15 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Faisal Latif
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Faisal Latif <faisal.latif-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/hw/nes/nes_verbs.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index aff9fb14768b..9b0ac3674702 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -3740,7 +3740,6 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev)
nesibdev->ibdev.phys_port_cnt = 1;
nesibdev->ibdev.num_comp_vectors = 1;
- nesibdev->ibdev.dma_device = &nesdev->pcidev->dev;
nesibdev->ibdev.dev.parent = &nesdev->pcidev->dev;
nesibdev->ibdev.query_device = nes_query_device;
nesibdev->ibdev.query_port = nes_query_port;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 24/37] IB/ocrdma: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (20 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 23/37] IB/nes: Remove a superfluous assignment statement Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 25/37] IB/qedr: " Bart Van Assche
` (14 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Selvin Xavier,
Devesh Sharma
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Selvin Xavier <selvin.xavier-1wcpHE2jlwO1Z/+hSey0Gg@public.gmane.org>
Cc: Devesh Sharma <devesh.sharma-1wcpHE2jlwO1Z/+hSey0Gg@public.gmane.org>
---
drivers/infiniband/hw/ocrdma/ocrdma_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 896071502739..38fb8bf35ef3 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -198,7 +198,7 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
dev->ibdev.alloc_ucontext = ocrdma_alloc_ucontext;
dev->ibdev.dealloc_ucontext = ocrdma_dealloc_ucontext;
dev->ibdev.mmap = ocrdma_mmap;
- dev->ibdev.dma_device = &dev->nic_info.pdev->dev;
+ dev->ibdev.dev.parent = &dev->nic_info.pdev->dev;
dev->ibdev.process_mad = ocrdma_process_mad;
dev->ibdev.get_port_immutable = ocrdma_port_immutable;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 25/37] IB/qedr: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (21 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 24/37] IB/ocrdma: Switch from dma_device to dev.parent Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 26/37] IB/qib: " Bart Van Assche
` (13 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Ram Amrani,
Michal Kalderon
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Ram Amrani <Ram.Amrani-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
Cc: Michal Kalderon <Michal.Kalderon-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
---
drivers/infiniband/hw/qedr/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c
index 7b74d09a8217..908c0b00ffdb 100644
--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -170,7 +170,7 @@ static int qedr_register_device(struct qedr_dev *dev)
dev->ibdev.get_port_immutable = qedr_port_immutable;
dev->ibdev.get_netdev = qedr_get_netdev;
- dev->ibdev.dma_device = &dev->pdev->dev;
+ dev->ibdev.dev.parent = &dev->pdev->dev;
dev->ibdev.get_link_layer = qedr_link_layer;
dev->ibdev.get_dev_fw_str = qedr_get_dev_fw_str;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 26/37] IB/qib: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (22 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 25/37] IB/qedr: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 27/37] IB/usnic: " Bart Van Assche
` (12 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Latif
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Latif <faisal.latif-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/hw/qib/qib_verbs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
index 4b54c0ddd08a..24ed82f3592f 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.c
+++ b/drivers/infiniband/hw/qib/qib_verbs.c
@@ -1632,7 +1632,7 @@ int qib_register_ib_device(struct qib_devdata *dd)
ibdev->owner = THIS_MODULE;
ibdev->node_guid = ppd->guid;
ibdev->phys_port_cnt = dd->num_pports;
- ibdev->dma_device = &dd->pcidev->dev;
+ ibdev->dev.parent = &dd->pcidev->dev;
ibdev->modify_device = qib_modify_device;
ibdev->process_mad = qib_process_mad;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 27/37] IB/usnic: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (23 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 26/37] IB/qib: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 28/37] IB/vmw_pvrdma: " Bart Van Assche
` (11 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Christian Benvenuti, Dave Goodell
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Christian Benvenuti <benve-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: Dave Goodell <dgoodell-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/hw/usnic/usnic_ib_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c
index 0a89a955550b..d44715cda108 100644
--- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
+++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
@@ -380,7 +380,7 @@ static void *usnic_ib_device_add(struct pci_dev *dev)
us_ibdev->ib_dev.node_type = RDMA_NODE_USNIC_UDP;
us_ibdev->ib_dev.phys_port_cnt = USNIC_IB_PORT_CNT;
us_ibdev->ib_dev.num_comp_vectors = USNIC_IB_NUM_COMP_VECTORS;
- us_ibdev->ib_dev.dma_device = &dev->dev;
+ us_ibdev->ib_dev.dev.parent = &dev->dev;
us_ibdev->ib_dev.uverbs_abi_ver = USNIC_UVERBS_ABI_VERSION;
strlcpy(us_ibdev->ib_dev.name, "usnic_%d", IB_DEVICE_NAME_MAX);
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 28/37] IB/vmw_pvrdma: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (24 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 27/37] IB/usnic: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-29-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 29/37] IB/rxe: " Bart Van Assche
` (10 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Adit Ranadive,
VMware PV-Drivers
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Adit Ranadive <aditr-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org>
Cc: VMware PV-Drivers <pv-drivers-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org>
---
drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
index 231a1ce1f4be..214793d51409 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
@@ -172,7 +172,7 @@ static int pvrdma_register_device(struct pvrdma_dev *dev)
dev->flags = 0;
dev->ib_dev.owner = THIS_MODULE;
dev->ib_dev.num_comp_vectors = 1;
- dev->ib_dev.dma_device = &dev->pdev->dev;
+ dev->ib_dev.dev.parent = &dev->pdev->dev;
dev->ib_dev.uverbs_abi_ver = PVRDMA_UVERBS_ABI_VERSION;
dev->ib_dev.uverbs_cmd_mask =
(1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 29/37] IB/rxe: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (25 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 28/37] IB/vmw_pvrdma: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-30-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 30/37] IB/IPoIB: " Bart Van Assche
` (9 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Moni Shoua
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Moni Shoua <monis-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/sw/rxe/rxe_verbs.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index beb7021ff18a..b707fc3bca2a 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -168,7 +168,7 @@ static int rxe_query_pkey(struct ib_device *device,
struct rxe_port *port;
if (unlikely(port_num != 1)) {
- dev_warn(device->dma_device, "invalid port_num = %d\n",
+ dev_warn(device->dev.parent, "invalid port_num = %d\n",
port_num);
goto err1;
}
@@ -176,7 +176,7 @@ static int rxe_query_pkey(struct ib_device *device,
port = &rxe->port;
if (unlikely(index >= port->attr.pkey_tbl_len)) {
- dev_warn(device->dma_device, "invalid index = %d\n",
+ dev_warn(device->dev.parent, "invalid index = %d\n",
index);
goto err1;
}
@@ -1234,7 +1234,7 @@ int rxe_register_device(struct rxe_dev *rxe)
dev->node_type = RDMA_NODE_IB_CA;
dev->phys_port_cnt = 1;
dev->num_comp_vectors = RXE_NUM_COMP_VECTORS;
- dev->dma_device = rxe->ifc_ops->dma_device(rxe);
+ dev->dev.parent = rxe->ifc_ops->dma_device(rxe);
dev->local_dma_lkey = 0;
dev->node_guid = rxe->ifc_ops->node_guid(rxe);
dev->dma_ops = &rxe_dma_mapping_ops;
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 30/37] IB/IPoIB: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (26 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 29/37] IB/rxe: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 31/37] IB/iser: " Bart Van Assche
` (8 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
---
drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | 2 +-
drivers/infiniband/ulp/ipoib/ipoib_main.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
index 7b6d40ff1acf..bac455a1942d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
@@ -65,7 +65,7 @@ static void ipoib_get_drvinfo(struct net_device *netdev,
ib_get_device_fw_str(priv->ca, drvinfo->fw_version,
sizeof(drvinfo->fw_version));
- strlcpy(drvinfo->bus_info, dev_name(priv->ca->dma_device),
+ strlcpy(drvinfo->bus_info, dev_name(priv->ca->dev.parent),
sizeof(drvinfo->bus_info));
strlcpy(drvinfo->version, ipoib_driver_version,
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 3ce0765a05ab..abb90a2781ba 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -2011,7 +2011,7 @@ static struct net_device *ipoib_add_port(const char *format,
if (!priv)
goto alloc_mem_failed;
- SET_NETDEV_DEV(priv->dev, hca->dma_device);
+ SET_NETDEV_DEV(priv->dev, hca->dev.parent);
priv->dev->dev_id = port - 1;
result = ib_query_port(hca, port, &attr);
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 31/37] IB/iser: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (27 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 30/37] IB/IPoIB: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 32/37] IB/srp: " Bart Van Assche
` (7 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Sagi Grimberg
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Sagi Grimberg <sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
---
drivers/infiniband/ulp/iser/iscsi_iser.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 9104e6b8cac9..da3caef1b7cb 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -659,7 +659,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
ib_conn->device->ib_device->attrs.max_fast_reg_page_list_len);
if (iscsi_host_add(shost,
- ib_conn->device->ib_device->dma_device)) {
+ ib_conn->device->ib_device->dev.parent)) {
mutex_unlock(&iser_conn->state_mutex);
goto free_host;
}
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 32/37] IB/srp: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (28 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 31/37] IB/iser: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 33/37] IB/srpt: Modify a debug statement Bart Van Assche
` (6 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Sagi Grimberg
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Sagi Grimberg <sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
---
drivers/infiniband/ulp/srp/ib_srp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 8ddc07123193..64b33d69b874 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2904,7 +2904,7 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target)
sprintf(target->target_name, "SRP.T10:%016llX",
be64_to_cpu(target->id_ext));
- if (scsi_add_host(target->scsi_host, host->srp_dev->dev->dma_device))
+ if (scsi_add_host(target->scsi_host, host->srp_dev->dev->dev.parent))
return -ENODEV;
memcpy(ids.port_id, &target->id_ext, 8);
@@ -3515,7 +3515,7 @@ static struct srp_host *srp_add_port(struct srp_device *device, u8 port)
host->port = port;
host->dev.class = &srp_class;
- host->dev.parent = device->dev->dma_device;
+ host->dev.parent = device->dev->dev.parent;
dev_set_name(&host->dev, "srp-%s-%d", device->dev->name, port);
if (device_register(&host->dev))
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 33/37] IB/srpt: Modify a debug statement
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (29 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 32/37] IB/srp: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 34/37] RDS: net: Switch from dma_device to dev.parent Bart Van Assche
` (5 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche
Since a later patch will remove ib_device.dma_device and since knowing
the value of that pointer is not too important, remove dma_device from
the debug output.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
---
drivers/infiniband/ulp/srpt/ib_srpt.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index dfc24f19178b..147beadd6815 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2464,8 +2464,7 @@ static void srpt_add_one(struct ib_device *device)
struct ib_srq_init_attr srq_attr;
int i;
- pr_debug("device = %p, device->dma_ops = %p\n", device,
- device->dma_device->dma_ops);
+ pr_debug("device = %p\n", device);
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (!sdev)
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 34/37] RDS: net: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (30 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 33/37] IB/srpt: Modify a debug statement Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-35-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 35/37] nvme-rdma: " Bart Van Assche
` (4 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche,
Santosh Shilimkar
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Santosh Shilimkar <santosh.shilimkar-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
---
net/rds/ib.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/rds/ib.h b/net/rds/ib.h
index d21ca88ab628..4a520826da23 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -223,7 +223,7 @@ struct rds_ib_device {
struct work_struct free_work;
};
-#define ibdev_to_node(ibdev) dev_to_node(ibdev->dma_device)
+#define ibdev_to_node(ibdev) dev_to_node((ibdev)->dev.parent)
#define rdsibdev_to_node(rdsibdev) ibdev_to_node(rdsibdev->dev)
/* bits for i_ack_flags */
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 35/37] nvme-rdma: Switch from dma_device to dev.parent
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (31 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 34/37] RDS: net: Switch from dma_device to dev.parent Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-36-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:04 ` [PATCH v3 36/37] IB/core: Remove ib_device.dma_device Bart Van Assche
` (3 subsequent siblings)
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Keith Busch,
Jens Axboe, Christoph Hellwig, Sagi Grimberg
Prepare for removal of ib_device.dma_device.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Keith Busch <keith.busch-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Jens Axboe <axboe-b10kYP2dOMg@public.gmane.org>
Cc: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Cc: Sagi Grimberg <sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
---
drivers/nvme/host/rdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 557f29b1f1bb..a4b90693bf0d 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1265,7 +1265,7 @@ static int nvme_rdma_addr_resolved(struct nvme_rdma_queue *queue)
dev = nvme_rdma_find_get_device(queue->cm_id);
if (!dev) {
- dev_err(queue->cm_id->device->dma_device,
+ dev_err(queue->cm_id->device->dev.parent,
"no client data found!\n");
return -ECONNREFUSED;
}
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 36/37] IB/core: Remove ib_device.dma_device
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (32 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 35/37] nvme-rdma: " Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
2017-01-20 21:04 ` [PATCH v3 37/37] IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it Bart Van Assche
` (2 subsequent siblings)
36 siblings, 0 replies; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche
Add code in ib_register_device() for copying the DMA masks. Use
&ib_device.dev in DMA mapping operations instead of dma_device.
Remove ib_device.dma_device because due to this and previous patches
it is no longer used.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
---
drivers/infiniband/core/device.c | 17 +++++++++--------
include/rdma/ib_verbs.h | 31 +++++++++++++------------------
2 files changed, 22 insertions(+), 26 deletions(-)
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index d543c4390447..cac1518de36e 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -333,14 +333,15 @@ int ib_register_device(struct ib_device *device,
int ret;
struct ib_client *client;
struct ib_udata uhw = {.outlen = 0, .inlen = 0};
-
- WARN_ON_ONCE(!device->dev.parent && !device->dma_device);
- WARN_ON_ONCE(device->dev.parent && device->dma_device
- && device->dev.parent != device->dma_device);
- if (!device->dev.parent)
- device->dev.parent = device->dma_device;
- if (!device->dma_device)
- device->dma_device = device->dev.parent;
+ struct device *parent = device->dev.parent;
+
+ WARN_ON_ONCE(!parent);
+ if (!device->dev.dma_ops)
+ device->dev.dma_ops = parent->dma_ops;
+ if (!device->dev.dma_mask)
+ device->dev.dma_mask = parent->dma_mask;
+ if (!device->dev.coherent_dma_mask)
+ device->dev.coherent_dma_mask = parent->coherent_dma_mask;
mutex_lock(&device_mutex);
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index fd4e42dd1efc..f09ed2f81c91 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1840,8 +1840,6 @@ struct ib_port_immutable {
};
struct ib_device {
- struct device *dma_device;
-
char name[IB_DEVICE_NAME_MAX];
struct list_head event_handler_list;
@@ -2968,7 +2966,7 @@ static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
{
if (dev->dma_ops)
return dev->dma_ops->mapping_error(dev, dma_addr);
- return dma_mapping_error(dev->dma_device, dma_addr);
+ return dma_mapping_error(&dev->dev, dma_addr);
}
/**
@@ -2984,7 +2982,7 @@ static inline u64 ib_dma_map_single(struct ib_device *dev,
{
if (dev->dma_ops)
return dev->dma_ops->map_single(dev, cpu_addr, size, direction);
- return dma_map_single(dev->dma_device, cpu_addr, size, direction);
+ return dma_map_single(&dev->dev, cpu_addr, size, direction);
}
/**
@@ -3001,7 +2999,7 @@ static inline void ib_dma_unmap_single(struct ib_device *dev,
if (dev->dma_ops)
dev->dma_ops->unmap_single(dev, addr, size, direction);
else
- dma_unmap_single(dev->dma_device, addr, size, direction);
+ dma_unmap_single(&dev->dev, addr, size, direction);
}
/**
@@ -3020,7 +3018,7 @@ static inline u64 ib_dma_map_page(struct ib_device *dev,
{
if (dev->dma_ops)
return dev->dma_ops->map_page(dev, page, offset, size, direction);
- return dma_map_page(dev->dma_device, page, offset, size, direction);
+ return dma_map_page(&dev->dev, page, offset, size, direction);
}
/**
@@ -3037,7 +3035,7 @@ static inline void ib_dma_unmap_page(struct ib_device *dev,
if (dev->dma_ops)
dev->dma_ops->unmap_page(dev, addr, size, direction);
else
- dma_unmap_page(dev->dma_device, addr, size, direction);
+ dma_unmap_page(&dev->dev, addr, size, direction);
}
/**
@@ -3053,7 +3051,7 @@ static inline int ib_dma_map_sg(struct ib_device *dev,
{
if (dev->dma_ops)
return dev->dma_ops->map_sg(dev, sg, nents, direction);
- return dma_map_sg(dev->dma_device, sg, nents, direction);
+ return dma_map_sg(&dev->dev, sg, nents, direction);
}
/**
@@ -3070,7 +3068,7 @@ static inline void ib_dma_unmap_sg(struct ib_device *dev,
if (dev->dma_ops)
dev->dma_ops->unmap_sg(dev, sg, nents, direction);
else
- dma_unmap_sg(dev->dma_device, sg, nents, direction);
+ dma_unmap_sg(&dev->dev, sg, nents, direction);
}
static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
@@ -3081,9 +3079,7 @@ static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
if (dev->dma_ops)
return dev->dma_ops->map_sg_attrs(dev, sg, nents, direction,
dma_attrs);
- else
- return dma_map_sg_attrs(dev->dma_device, sg, nents, direction,
- dma_attrs);
+ return dma_map_sg_attrs(&dev->dev, sg, nents, direction, dma_attrs);
}
static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
@@ -3095,8 +3091,7 @@ static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
return dev->dma_ops->unmap_sg_attrs(dev, sg, nents, direction,
dma_attrs);
else
- dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction,
- dma_attrs);
+ dma_unmap_sg_attrs(&dev->dev, sg, nents, direction, dma_attrs);
}
/**
* ib_sg_dma_address - Return the DMA address from a scatter/gather entry
@@ -3141,7 +3136,7 @@ static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev,
if (dev->dma_ops)
dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir);
else
- dma_sync_single_for_cpu(dev->dma_device, addr, size, dir);
+ dma_sync_single_for_cpu(&dev->dev, addr, size, dir);
}
/**
@@ -3159,7 +3154,7 @@ static inline void ib_dma_sync_single_for_device(struct ib_device *dev,
if (dev->dma_ops)
dev->dma_ops->sync_single_for_device(dev, addr, size, dir);
else
- dma_sync_single_for_device(dev->dma_device, addr, size, dir);
+ dma_sync_single_for_device(&dev->dev, addr, size, dir);
}
/**
@@ -3182,7 +3177,7 @@ static inline void *ib_dma_alloc_coherent(struct ib_device *dev,
*dma_handle = handle;
return ret;
}
- return dma_alloc_coherent(dev->dma_device, size, dma_handle, flag);
+ return dma_alloc_coherent(&dev->dev, size, dma_handle, flag);
}
/**
@@ -3199,7 +3194,7 @@ static inline void ib_dma_free_coherent(struct ib_device *dev,
if (dev->dma_ops)
dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
else
- dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle);
+ dma_free_coherent(&dev->dev, size, cpu_addr, dma_handle);
}
/**
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* [PATCH v3 37/37] IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (33 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 36/37] IB/core: Remove ib_device.dma_device Bart Van Assche
@ 2017-01-20 21:04 ` Bart Van Assche
[not found] ` <20170120210437.26389-38-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
2017-01-20 21:57 ` [PATCH v3 00/37] IB: Optimize DMA mapping Laurence Oberman
2017-01-24 17:38 ` Doug Ledford
36 siblings, 1 reply; 60+ messages in thread
From: Bart Van Assche @ 2017-01-20 21:04 UTC (permalink / raw)
To: Doug Ledford
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA, Bart Van Assche, Andrew Boyer,
Dennis Dalessandro, Jonathan Toppins, Alex Estrin,
Leon Romanovsky
Make the rxe and rdmavt drivers use dma_virt_ops. Update the
comments that refer to the source files removed by this patch.
Remove struct ib_dma_mapping_ops. Remove ib_device.dma_ops.
Signed-off-by: Bart Van Assche <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
Cc: Andrew Boyer <andrew.boyer-8PEkshWhKlo@public.gmane.org>
Cc: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Jonathan Toppins <jtoppins-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Alex Estrin <alex.estrin-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Leon Romanovsky <leonro-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/sw/rdmavt/Kconfig | 1 +
drivers/infiniband/sw/rdmavt/Makefile | 2 +-
drivers/infiniband/sw/rdmavt/dma.c | 198 ----------------------------------
drivers/infiniband/sw/rdmavt/dma.h | 53 ---------
drivers/infiniband/sw/rdmavt/mr.c | 8 +-
drivers/infiniband/sw/rdmavt/vt.c | 4 +-
drivers/infiniband/sw/rdmavt/vt.h | 1 -
drivers/infiniband/sw/rxe/Kconfig | 1 +
drivers/infiniband/sw/rxe/Makefile | 1 -
drivers/infiniband/sw/rxe/rxe_dma.c | 183 -------------------------------
drivers/infiniband/sw/rxe/rxe_loc.h | 2 -
drivers/infiniband/sw/rxe/rxe_verbs.c | 3 +-
include/rdma/ib_verbs.h | 103 ++----------------
13 files changed, 18 insertions(+), 542 deletions(-)
delete mode 100644 drivers/infiniband/sw/rdmavt/dma.c
delete mode 100644 drivers/infiniband/sw/rdmavt/dma.h
delete mode 100644 drivers/infiniband/sw/rxe/rxe_dma.c
diff --git a/drivers/infiniband/sw/rdmavt/Kconfig b/drivers/infiniband/sw/rdmavt/Kconfig
index 1da8d01a6855..fdd001ce13d8 100644
--- a/drivers/infiniband/sw/rdmavt/Kconfig
+++ b/drivers/infiniband/sw/rdmavt/Kconfig
@@ -1,5 +1,6 @@
config INFINIBAND_RDMAVT
tristate "RDMA verbs transport library"
depends on 64BIT
+ select DMA_VIRT_OPS
---help---
This is a common software verbs provider for RDMA networks.
diff --git a/drivers/infiniband/sw/rdmavt/Makefile b/drivers/infiniband/sw/rdmavt/Makefile
index ccaa7992ac97..2a821d2fb569 100644
--- a/drivers/infiniband/sw/rdmavt/Makefile
+++ b/drivers/infiniband/sw/rdmavt/Makefile
@@ -7,7 +7,7 @@
#
obj-$(CONFIG_INFINIBAND_RDMAVT) += rdmavt.o
-rdmavt-y := vt.o ah.o cq.o dma.o mad.o mcast.o mmap.o mr.o pd.o qp.o srq.o \
+rdmavt-y := vt.o ah.o cq.o mad.o mcast.o mmap.o mr.o pd.o qp.o srq.o \
trace.o
CFLAGS_trace.o = -I$(src)
diff --git a/drivers/infiniband/sw/rdmavt/dma.c b/drivers/infiniband/sw/rdmavt/dma.c
deleted file mode 100644
index f2cefb0d9180..000000000000
--- a/drivers/infiniband/sw/rdmavt/dma.c
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * Copyright(c) 2016 Intel Corporation.
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * BSD LICENSE
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * - Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-#include <linux/types.h>
-#include <linux/scatterlist.h>
-#include <rdma/ib_verbs.h>
-
-#include "dma.h"
-
-#define BAD_DMA_ADDRESS ((u64)0)
-
-/*
- * The following functions implement driver specific replacements
- * for the ib_dma_*() functions.
- *
- * These functions return kernel virtual addresses instead of
- * device bus addresses since the driver uses the CPU to copy
- * data instead of using hardware DMA.
- */
-
-static int rvt_mapping_error(struct ib_device *dev, u64 dma_addr)
-{
- return dma_addr == BAD_DMA_ADDRESS;
-}
-
-static u64 rvt_dma_map_single(struct ib_device *dev, void *cpu_addr,
- size_t size, enum dma_data_direction direction)
-{
- if (WARN_ON(!valid_dma_direction(direction)))
- return BAD_DMA_ADDRESS;
-
- return (u64)cpu_addr;
-}
-
-static void rvt_dma_unmap_single(struct ib_device *dev, u64 addr, size_t size,
- enum dma_data_direction direction)
-{
- /* This is a stub, nothing to be done here */
-}
-
-static u64 rvt_dma_map_page(struct ib_device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- u64 addr;
-
- if (WARN_ON(!valid_dma_direction(direction)))
- return BAD_DMA_ADDRESS;
-
- addr = (u64)page_address(page);
- if (addr)
- addr += offset;
-
- return addr;
-}
-
-static void rvt_dma_unmap_page(struct ib_device *dev, u64 addr, size_t size,
- enum dma_data_direction direction)
-{
- /* This is a stub, nothing to be done here */
-}
-
-static int rvt_map_sg(struct ib_device *dev, struct scatterlist *sgl,
- int nents, enum dma_data_direction direction)
-{
- struct scatterlist *sg;
- u64 addr;
- int i;
- int ret = nents;
-
- if (WARN_ON(!valid_dma_direction(direction)))
- return 0;
-
- for_each_sg(sgl, sg, nents, i) {
- addr = (u64)page_address(sg_page(sg));
- if (!addr) {
- ret = 0;
- break;
- }
- sg->dma_address = addr + sg->offset;
-#ifdef CONFIG_NEED_SG_DMA_LENGTH
- sg->dma_length = sg->length;
-#endif
- }
- return ret;
-}
-
-static void rvt_unmap_sg(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
-{
- /* This is a stub, nothing to be done here */
-}
-
-static int rvt_map_sg_attrs(struct ib_device *dev, struct scatterlist *sgl,
- int nents, enum dma_data_direction direction,
- unsigned long attrs)
-{
- return rvt_map_sg(dev, sgl, nents, direction);
-}
-
-static void rvt_unmap_sg_attrs(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction,
- unsigned long attrs)
-{
- return rvt_unmap_sg(dev, sg, nents, direction);
-}
-
-static void rvt_sync_single_for_cpu(struct ib_device *dev, u64 addr,
- size_t size, enum dma_data_direction dir)
-{
-}
-
-static void rvt_sync_single_for_device(struct ib_device *dev, u64 addr,
- size_t size,
- enum dma_data_direction dir)
-{
-}
-
-static void *rvt_dma_alloc_coherent(struct ib_device *dev, size_t size,
- u64 *dma_handle, gfp_t flag)
-{
- struct page *p;
- void *addr = NULL;
-
- p = alloc_pages(flag, get_order(size));
- if (p)
- addr = page_address(p);
- if (dma_handle)
- *dma_handle = (u64)addr;
- return addr;
-}
-
-static void rvt_dma_free_coherent(struct ib_device *dev, size_t size,
- void *cpu_addr, u64 dma_handle)
-{
- free_pages((unsigned long)cpu_addr, get_order(size));
-}
-
-struct ib_dma_mapping_ops rvt_default_dma_mapping_ops = {
- .mapping_error = rvt_mapping_error,
- .map_single = rvt_dma_map_single,
- .unmap_single = rvt_dma_unmap_single,
- .map_page = rvt_dma_map_page,
- .unmap_page = rvt_dma_unmap_page,
- .map_sg = rvt_map_sg,
- .unmap_sg = rvt_unmap_sg,
- .map_sg_attrs = rvt_map_sg_attrs,
- .unmap_sg_attrs = rvt_unmap_sg_attrs,
- .sync_single_for_cpu = rvt_sync_single_for_cpu,
- .sync_single_for_device = rvt_sync_single_for_device,
- .alloc_coherent = rvt_dma_alloc_coherent,
- .free_coherent = rvt_dma_free_coherent
-};
diff --git a/drivers/infiniband/sw/rdmavt/dma.h b/drivers/infiniband/sw/rdmavt/dma.h
deleted file mode 100644
index 979f07e09195..000000000000
--- a/drivers/infiniband/sw/rdmavt/dma.h
+++ /dev/null
@@ -1,53 +0,0 @@
-#ifndef DEF_RDMAVTDMA_H
-#define DEF_RDMAVTDMA_H
-
-/*
- * Copyright(c) 2016 Intel Corporation.
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * BSD LICENSE
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * - Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-extern struct ib_dma_mapping_ops rvt_default_dma_mapping_ops;
-
-#endif /* DEF_RDMAVTDMA_H */
diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
index 52fd15276ee6..14d0ac6efd08 100644
--- a/drivers/infiniband/sw/rdmavt/mr.c
+++ b/drivers/infiniband/sw/rdmavt/mr.c
@@ -305,8 +305,8 @@ static void __rvt_free_mr(struct rvt_mr *mr)
* @acc: access flags
*
* Return: the memory region on success, otherwise returns an errno.
- * Note that all DMA addresses should be created via the
- * struct ib_dma_mapping_ops functions (see dma.c).
+ * Note that all DMA addresses should be created via the functions in
+ * struct dma_virt_ops.
*/
struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc)
{
@@ -782,7 +782,7 @@ int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd,
/*
* We use LKEY == zero for kernel virtual addresses
- * (see rvt_get_dma_mr and dma.c).
+ * (see rvt_get_dma_mr() and dma_virt_ops).
*/
rcu_read_lock();
if (sge->lkey == 0) {
@@ -880,7 +880,7 @@ int rvt_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge,
/*
* We use RKEY == zero for kernel virtual addresses
- * (see rvt_get_dma_mr and dma.c).
+ * (see rvt_get_dma_mr() and dma_virt_ops).
*/
rcu_read_lock();
if (rkey == 0) {
diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c
index d430c2f7cec4..19666e52b3b1 100644
--- a/drivers/infiniband/sw/rdmavt/vt.c
+++ b/drivers/infiniband/sw/rdmavt/vt.c
@@ -47,6 +47,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
#include "vt.h"
#include "trace.h"
@@ -777,8 +778,7 @@ int rvt_register_device(struct rvt_dev_info *rdi)
}
/* DMA Operations */
- rdi->ibdev.dma_ops =
- rdi->ibdev.dma_ops ? : &rvt_default_dma_mapping_ops;
+ rdi->ibdev.dev.dma_ops = rdi->ibdev.dev.dma_ops ? : &dma_virt_ops;
/* Protection Domain */
spin_lock_init(&rdi->n_pds_lock);
diff --git a/drivers/infiniband/sw/rdmavt/vt.h b/drivers/infiniband/sw/rdmavt/vt.h
index 6b01eaa4461b..f363505312be 100644
--- a/drivers/infiniband/sw/rdmavt/vt.h
+++ b/drivers/infiniband/sw/rdmavt/vt.h
@@ -50,7 +50,6 @@
#include <rdma/rdma_vt.h>
#include <linux/pci.h>
-#include "dma.h"
#include "pd.h"
#include "qp.h"
#include "ah.h"
diff --git a/drivers/infiniband/sw/rxe/Kconfig b/drivers/infiniband/sw/rxe/Kconfig
index 1e4e628fe7b0..7d1ac27ed251 100644
--- a/drivers/infiniband/sw/rxe/Kconfig
+++ b/drivers/infiniband/sw/rxe/Kconfig
@@ -2,6 +2,7 @@ config RDMA_RXE
tristate "Software RDMA over Ethernet (RoCE) driver"
depends on INET && PCI && INFINIBAND
depends on NET_UDP_TUNNEL
+ select DMA_VIRT_OPS
---help---
This driver implements the InfiniBand RDMA transport over
the Linux network stack. It enables a system with a
diff --git a/drivers/infiniband/sw/rxe/Makefile b/drivers/infiniband/sw/rxe/Makefile
index 3b3fb9d1c470..ec35ff022a42 100644
--- a/drivers/infiniband/sw/rxe/Makefile
+++ b/drivers/infiniband/sw/rxe/Makefile
@@ -14,7 +14,6 @@ rdma_rxe-y := \
rxe_qp.o \
rxe_cq.o \
rxe_mr.o \
- rxe_dma.o \
rxe_opcode.o \
rxe_mmap.o \
rxe_icrc.o \
diff --git a/drivers/infiniband/sw/rxe/rxe_dma.c b/drivers/infiniband/sw/rxe/rxe_dma.c
deleted file mode 100644
index a0f8af5851ae..000000000000
--- a/drivers/infiniband/sw/rxe/rxe_dma.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
- * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses. You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include "rxe.h"
-#include "rxe_loc.h"
-
-#define DMA_BAD_ADDER ((u64)0)
-
-static int rxe_mapping_error(struct ib_device *dev, u64 dma_addr)
-{
- return dma_addr == DMA_BAD_ADDER;
-}
-
-static u64 rxe_dma_map_single(struct ib_device *dev,
- void *cpu_addr, size_t size,
- enum dma_data_direction direction)
-{
- WARN_ON(!valid_dma_direction(direction));
- return (uintptr_t)cpu_addr;
-}
-
-static void rxe_dma_unmap_single(struct ib_device *dev,
- u64 addr, size_t size,
- enum dma_data_direction direction)
-{
- WARN_ON(!valid_dma_direction(direction));
-}
-
-static u64 rxe_dma_map_page(struct ib_device *dev,
- struct page *page,
- unsigned long offset,
- size_t size, enum dma_data_direction direction)
-{
- u64 addr;
-
- WARN_ON(!valid_dma_direction(direction));
-
- if (offset + size > PAGE_SIZE) {
- addr = DMA_BAD_ADDER;
- goto done;
- }
-
- addr = (uintptr_t)page_address(page);
- if (addr)
- addr += offset;
-
-done:
- return addr;
-}
-
-static void rxe_dma_unmap_page(struct ib_device *dev,
- u64 addr, size_t size,
- enum dma_data_direction direction)
-{
- WARN_ON(!valid_dma_direction(direction));
-}
-
-static int rxe_map_sg(struct ib_device *dev, struct scatterlist *sgl,
- int nents, enum dma_data_direction direction)
-{
- struct scatterlist *sg;
- u64 addr;
- int i;
- int ret = nents;
-
- WARN_ON(!valid_dma_direction(direction));
-
- for_each_sg(sgl, sg, nents, i) {
- addr = (uintptr_t)page_address(sg_page(sg));
- if (!addr) {
- ret = 0;
- break;
- }
- sg->dma_address = addr + sg->offset;
-#ifdef CONFIG_NEED_SG_DMA_LENGTH
- sg->dma_length = sg->length;
-#endif
- }
-
- return ret;
-}
-
-static void rxe_unmap_sg(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
-{
- WARN_ON(!valid_dma_direction(direction));
-}
-
-static int rxe_map_sg_attrs(struct ib_device *dev, struct scatterlist *sgl,
- int nents, enum dma_data_direction direction,
- unsigned long attrs)
-{
- return rxe_map_sg(dev, sgl, nents, direction);
-}
-
-static void rxe_unmap_sg_attrs(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction,
- unsigned long attrs)
-{
- rxe_unmap_sg(dev, sg, nents, direction);
-}
-
-static void rxe_sync_single_for_cpu(struct ib_device *dev,
- u64 addr,
- size_t size, enum dma_data_direction dir)
-{
-}
-
-static void rxe_sync_single_for_device(struct ib_device *dev,
- u64 addr,
- size_t size, enum dma_data_direction dir)
-{
-}
-
-static void *rxe_dma_alloc_coherent(struct ib_device *dev, size_t size,
- u64 *dma_handle, gfp_t flag)
-{
- struct page *p;
- void *addr = NULL;
-
- p = alloc_pages(flag, get_order(size));
- if (p)
- addr = page_address(p);
-
- if (dma_handle)
- *dma_handle = (uintptr_t)addr;
-
- return addr;
-}
-
-static void rxe_dma_free_coherent(struct ib_device *dev, size_t size,
- void *cpu_addr, u64 dma_handle)
-{
- free_pages((unsigned long)cpu_addr, get_order(size));
-}
-
-struct ib_dma_mapping_ops rxe_dma_mapping_ops = {
- .mapping_error = rxe_mapping_error,
- .map_single = rxe_dma_map_single,
- .unmap_single = rxe_dma_unmap_single,
- .map_page = rxe_dma_map_page,
- .unmap_page = rxe_dma_unmap_page,
- .map_sg = rxe_map_sg,
- .unmap_sg = rxe_unmap_sg,
- .map_sg_attrs = rxe_map_sg_attrs,
- .unmap_sg_attrs = rxe_unmap_sg_attrs,
- .sync_single_for_cpu = rxe_sync_single_for_cpu,
- .sync_single_for_device = rxe_sync_single_for_device,
- .alloc_coherent = rxe_dma_alloc_coherent,
- .free_coherent = rxe_dma_free_coherent
-};
diff --git a/drivers/infiniband/sw/rxe/rxe_loc.h b/drivers/infiniband/sw/rxe/rxe_loc.h
index efe4c6a35442..267f89d91da7 100644
--- a/drivers/infiniband/sw/rxe/rxe_loc.h
+++ b/drivers/infiniband/sw/rxe/rxe_loc.h
@@ -221,8 +221,6 @@ int rxe_srq_from_attr(struct rxe_dev *rxe, struct rxe_srq *srq,
struct ib_srq_attr *attr, enum ib_srq_attr_mask mask,
struct ib_udata *udata);
-extern struct ib_dma_mapping_ops rxe_dma_mapping_ops;
-
void rxe_release(struct kref *kref);
int rxe_completer(void *arg);
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index b707fc3bca2a..fd27d2b7fdc1 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
@@ -31,6 +31,7 @@
* SOFTWARE.
*/
+#include <linux/dma-mapping.h>
#include "rxe.h"
#include "rxe_loc.h"
#include "rxe_queue.h"
@@ -1237,7 +1238,7 @@ int rxe_register_device(struct rxe_dev *rxe)
dev->dev.parent = rxe->ifc_ops->dma_device(rxe);
dev->local_dma_lkey = 0;
dev->node_guid = rxe->ifc_ops->node_guid(rxe);
- dev->dma_ops = &rxe_dma_mapping_ops;
+ dev->dev.dma_ops = &dma_virt_ops;
dev->uverbs_abi_ver = RXE_UVERBS_ABI_VERSION;
dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT)
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index f09ed2f81c91..24b49b747e90 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1783,53 +1783,6 @@ struct ib_cache {
u8 *lmc_cache;
};
-struct ib_dma_mapping_ops {
- int (*mapping_error)(struct ib_device *dev,
- u64 dma_addr);
- u64 (*map_single)(struct ib_device *dev,
- void *ptr, size_t size,
- enum dma_data_direction direction);
- void (*unmap_single)(struct ib_device *dev,
- u64 addr, size_t size,
- enum dma_data_direction direction);
- u64 (*map_page)(struct ib_device *dev,
- struct page *page, unsigned long offset,
- size_t size,
- enum dma_data_direction direction);
- void (*unmap_page)(struct ib_device *dev,
- u64 addr, size_t size,
- enum dma_data_direction direction);
- int (*map_sg)(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction);
- void (*unmap_sg)(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction);
- int (*map_sg_attrs)(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction,
- unsigned long attrs);
- void (*unmap_sg_attrs)(struct ib_device *dev,
- struct scatterlist *sg, int nents,
- enum dma_data_direction direction,
- unsigned long attrs);
- void (*sync_single_for_cpu)(struct ib_device *dev,
- u64 dma_handle,
- size_t size,
- enum dma_data_direction dir);
- void (*sync_single_for_device)(struct ib_device *dev,
- u64 dma_handle,
- size_t size,
- enum dma_data_direction dir);
- void *(*alloc_coherent)(struct ib_device *dev,
- size_t size,
- u64 *dma_handle,
- gfp_t flag);
- void (*free_coherent)(struct ib_device *dev,
- size_t size, void *cpu_addr,
- u64 dma_handle);
-};
-
struct iw_cm_verbs;
struct ib_port_immutable {
@@ -2089,7 +2042,6 @@ struct ib_device {
struct ib_rwq_ind_table_init_attr *init_attr,
struct ib_udata *udata);
int (*destroy_rwq_ind_table)(struct ib_rwq_ind_table *wq_ind_table);
- struct ib_dma_mapping_ops *dma_ops;
struct module *owner;
struct device dev;
@@ -2964,8 +2916,6 @@ static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt)
*/
static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
{
- if (dev->dma_ops)
- return dev->dma_ops->mapping_error(dev, dma_addr);
return dma_mapping_error(&dev->dev, dma_addr);
}
@@ -2980,8 +2930,6 @@ static inline u64 ib_dma_map_single(struct ib_device *dev,
void *cpu_addr, size_t size,
enum dma_data_direction direction)
{
- if (dev->dma_ops)
- return dev->dma_ops->map_single(dev, cpu_addr, size, direction);
return dma_map_single(&dev->dev, cpu_addr, size, direction);
}
@@ -2996,10 +2944,7 @@ static inline void ib_dma_unmap_single(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction)
{
- if (dev->dma_ops)
- dev->dma_ops->unmap_single(dev, addr, size, direction);
- else
- dma_unmap_single(&dev->dev, addr, size, direction);
+ dma_unmap_single(&dev->dev, addr, size, direction);
}
/**
@@ -3016,8 +2961,6 @@ static inline u64 ib_dma_map_page(struct ib_device *dev,
size_t size,
enum dma_data_direction direction)
{
- if (dev->dma_ops)
- return dev->dma_ops->map_page(dev, page, offset, size, direction);
return dma_map_page(&dev->dev, page, offset, size, direction);
}
@@ -3032,10 +2975,7 @@ static inline void ib_dma_unmap_page(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction)
{
- if (dev->dma_ops)
- dev->dma_ops->unmap_page(dev, addr, size, direction);
- else
- dma_unmap_page(&dev->dev, addr, size, direction);
+ dma_unmap_page(&dev->dev, addr, size, direction);
}
/**
@@ -3049,8 +2989,6 @@ static inline int ib_dma_map_sg(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
- if (dev->dma_ops)
- return dev->dma_ops->map_sg(dev, sg, nents, direction);
return dma_map_sg(&dev->dev, sg, nents, direction);
}
@@ -3065,10 +3003,7 @@ static inline void ib_dma_unmap_sg(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
- if (dev->dma_ops)
- dev->dma_ops->unmap_sg(dev, sg, nents, direction);
- else
- dma_unmap_sg(&dev->dev, sg, nents, direction);
+ dma_unmap_sg(&dev->dev, sg, nents, direction);
}
static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
@@ -3076,9 +3011,6 @@ static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
enum dma_data_direction direction,
unsigned long dma_attrs)
{
- if (dev->dma_ops)
- return dev->dma_ops->map_sg_attrs(dev, sg, nents, direction,
- dma_attrs);
return dma_map_sg_attrs(&dev->dev, sg, nents, direction, dma_attrs);
}
@@ -3087,11 +3019,7 @@ static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
enum dma_data_direction direction,
unsigned long dma_attrs)
{
- if (dev->dma_ops)
- return dev->dma_ops->unmap_sg_attrs(dev, sg, nents, direction,
- dma_attrs);
- else
- dma_unmap_sg_attrs(&dev->dev, sg, nents, direction, dma_attrs);
+ dma_unmap_sg_attrs(&dev->dev, sg, nents, direction, dma_attrs);
}
/**
* ib_sg_dma_address - Return the DMA address from a scatter/gather entry
@@ -3133,10 +3061,7 @@ static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev,
size_t size,
enum dma_data_direction dir)
{
- if (dev->dma_ops)
- dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir);
- else
- dma_sync_single_for_cpu(&dev->dev, addr, size, dir);
+ dma_sync_single_for_cpu(&dev->dev, addr, size, dir);
}
/**
@@ -3151,10 +3076,7 @@ static inline void ib_dma_sync_single_for_device(struct ib_device *dev,
size_t size,
enum dma_data_direction dir)
{
- if (dev->dma_ops)
- dev->dma_ops->sync_single_for_device(dev, addr, size, dir);
- else
- dma_sync_single_for_device(&dev->dev, addr, size, dir);
+ dma_sync_single_for_device(&dev->dev, addr, size, dir);
}
/**
@@ -3169,14 +3091,6 @@ static inline void *ib_dma_alloc_coherent(struct ib_device *dev,
dma_addr_t *dma_handle,
gfp_t flag)
{
- if (dev->dma_ops) {
- u64 handle;
- void *ret;
-
- ret = dev->dma_ops->alloc_coherent(dev, size, &handle, flag);
- *dma_handle = handle;
- return ret;
- }
return dma_alloc_coherent(&dev->dev, size, dma_handle, flag);
}
@@ -3191,10 +3105,7 @@ static inline void ib_dma_free_coherent(struct ib_device *dev,
size_t size, void *cpu_addr,
dma_addr_t dma_handle)
{
- if (dev->dma_ops)
- dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
- else
- dma_free_coherent(&dev->dev, size, cpu_addr, dma_handle);
+ dma_free_coherent(&dev->dev, size, cpu_addr, dma_handle);
}
/**
--
2.11.0
--
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^ permalink raw reply related [flat|nested] 60+ messages in thread* Re: [PATCH v3 00/37] IB: Optimize DMA mapping
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (34 preceding siblings ...)
2017-01-20 21:04 ` [PATCH v3 37/37] IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it Bart Van Assche
@ 2017-01-20 21:57 ` Laurence Oberman
[not found] ` <1671405275.19009584.1484949453215.JavaMail.zimbra-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-01-24 17:38 ` Doug Ledford
36 siblings, 1 reply; 60+ messages in thread
From: Laurence Oberman @ 2017-01-20 21:57 UTC (permalink / raw)
To: Bart Van Assche; +Cc: Doug Ledford, linux-rdma-u79uwXL29TY76Z2rM5mHXA
----- Original Message -----
> From: "Bart Van Assche" <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
> To: "Doug Ledford" <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Bart Van Assche" <bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
> Sent: Friday, January 20, 2017 4:04:00 PM
> Subject: [PATCH v3 00/37] IB: Optimize DMA mapping
>
> Hello Doug,
>
> As you know there are two sets of DMA mapping operations in the Linux
> kernel:
> - One set of DMA mapping operations that is used by most drivers.
> - Another set of DMA mapping operations that is only used by the RDMA
> drivers.
> Having two types of DMA mapping operations is not only a source of
> confusion but also a source of unnecessary overhead. The DMA mapping
> operations are in the hot path so it is important that the overhead
> of these operations is as low as possible. Hence this patch series
> that converts the RDMA code to the standard DMA mapping operations
> and thereby eliminates the if (dev->dma_ops) test from the hot path.
>
> The changes compared to version 2 of this patch series are:
> - Left out the inlining of the ib_dma_map_*() functions to keep the
> number of patches in this patch series reasonable.
> - Reworked this patch series such that (hopefully) the hfi1 and qib
> drivers keep working.
>
> The changes compared to version 1 of this patch series are:
> - Patch "Move dma_ops from archdata into struct device" has been
> split into three patches.
> - Patch "treewide: Inline ib_dma_map_*() functions" has been split
> into 15 patches (one per driver).
> - A patch has been added that builds dma_noop_ops only for the
> architectures that need it.
> - The new dma_virt_ops is only built if it is used by a driver.
> - In these last 15 patches indentation has been adjusted to keep
> the arguments aligned with the opening parenthesis.
>
> Bart Van Assche (37):
> treewide: Constify most dma_map_ops structures
> treewide: Move dma_ops from struct dev_archdata into struct device
> treewide: Consolidate set_dma_ops() implementations
> treewide: Consolidate get_dma_ops() implementations
> lib/dma-noop: Clarify a comment
> lib/dma-noop: Only build dma_noop_ops for s390 and m32r
> lib/dma-virt: Add dma_virt_ops
> IB/core: Remove ib_dma_*map_single_attrs()
> RDS: IB: Remove an unused structure member
> IB/core: Change the type of an ib_dma_alloc_coherent() argument
> IB/hf1: Remove DMA mapping code
> IB/qib: Remove DMA mapping code
> IB/core: Initialize ib_device.dev.parent earlier
> IB/core: Use dev.parent instead of dma_device
> IB/cxgb3: Set dev.parent instead of dma_device
> IB/cxgb4: Set dev.parent instead of dma_device
> IB/hfi1: Switch from dma_device to dev.parent
> IB/hns: Switch from dma_device to dev.parent
> IB/i40iw: Remove a superfluous assignment statement
> IB/mlx4: Switch from dma_device to dev.parent
> IB/mlx5: Switch from dma_device to dev.parent
> IB/mthca: Switch from dma_device to dev.parent
> IB/nes: Remove a superfluous assignment statement
> IB/ocrdma: Switch from dma_device to dev.parent
> IB/qedr: Switch from dma_device to dev.parent
> IB/qib: Switch from dma_device to dev.parent
> IB/usnic: Switch from dma_device to dev.parent
> IB/vmw_pvrdma: Switch from dma_device to dev.parent
> IB/rxe: Switch from dma_device to dev.parent
> IB/IPoIB: Switch from dma_device to dev.parent
> IB/iser: Switch from dma_device to dev.parent
> IB/srp: Switch from dma_device to dev.parent
> IB/srpt: Modify a debug statement
> RDS: net: Switch from dma_device to dev.parent
> nvme-rdma: Switch from dma_device to dev.parent
> IB/core: Remove ib_device.dma_device
> IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it
>
> arch/alpha/include/asm/dma-mapping.h | 4 +-
> arch/alpha/kernel/pci-noop.c | 4 +-
> arch/alpha/kernel/pci_iommu.c | 4 +-
> arch/arc/include/asm/dma-mapping.h | 4 +-
> arch/arc/mm/dma.c | 2 +-
> arch/arm/common/dmabounce.c | 2 +-
> arch/arm/include/asm/device.h | 1 -
> arch/arm/include/asm/dma-mapping.h | 20 +--
> arch/arm/mm/dma-mapping.c | 22 +--
> arch/arm/xen/mm.c | 4 +-
> arch/arm64/include/asm/device.h | 1 -
> arch/arm64/include/asm/dma-mapping.h | 12 +-
> arch/arm64/mm/dma-mapping.c | 14 +-
> arch/avr32/include/asm/dma-mapping.h | 4 +-
> arch/avr32/mm/dma-coherent.c | 2 +-
> arch/blackfin/include/asm/dma-mapping.h | 4 +-
> arch/blackfin/kernel/dma-mapping.c | 2 +-
> arch/c6x/include/asm/dma-mapping.h | 4 +-
> arch/c6x/kernel/dma.c | 2 +-
> arch/cris/arch-v32/drivers/pci/dma.c | 2 +-
> arch/cris/include/asm/dma-mapping.h | 6 +-
> arch/frv/include/asm/dma-mapping.h | 4 +-
> arch/frv/mb93090-mb00/pci-dma-nommu.c | 2 +-
> arch/frv/mb93090-mb00/pci-dma.c | 2 +-
> arch/h8300/include/asm/dma-mapping.h | 4 +-
> arch/h8300/kernel/dma.c | 2 +-
> arch/hexagon/include/asm/dma-mapping.h | 7 +-
> arch/hexagon/kernel/dma.c | 4 +-
> arch/ia64/hp/common/hwsw_iommu.c | 4 +-
> arch/ia64/hp/common/sba_iommu.c | 4 +-
> arch/ia64/include/asm/dma-mapping.h | 7 +-
> arch/ia64/include/asm/machvec.h | 4 +-
> arch/ia64/kernel/dma-mapping.c | 4 +-
> arch/ia64/kernel/pci-dma.c | 10 +-
> arch/ia64/kernel/pci-swiotlb.c | 2 +-
> arch/m32r/Kconfig | 1 +
> arch/m32r/include/asm/device.h | 1 -
> arch/m32r/include/asm/dma-mapping.h | 4 +-
> arch/m68k/include/asm/dma-mapping.h | 4 +-
> arch/m68k/kernel/dma.c | 2 +-
> arch/metag/include/asm/dma-mapping.h | 4 +-
> arch/metag/kernel/dma.c | 2 +-
> arch/microblaze/include/asm/dma-mapping.h | 4 +-
> arch/microblaze/kernel/dma.c | 2 +-
> arch/mips/cavium-octeon/dma-octeon.c | 4 +-
> arch/mips/include/asm/device.h | 5 -
> arch/mips/include/asm/dma-mapping.h | 9 +-
> .../include/asm/mach-cavium-octeon/dma-coherence.h | 2 +-
> arch/mips/include/asm/netlogic/common.h | 2 +-
> arch/mips/loongson64/common/dma-swiotlb.c | 2 +-
> arch/mips/mm/dma-default.c | 4 +-
> arch/mips/netlogic/common/nlm-dma.c | 2 +-
> arch/mips/pci/pci-octeon.c | 2 +-
> arch/mn10300/include/asm/dma-mapping.h | 4 +-
> arch/mn10300/mm/dma-alloc.c | 2 +-
> arch/nios2/include/asm/dma-mapping.h | 4 +-
> arch/nios2/mm/dma-mapping.c | 2 +-
> arch/openrisc/include/asm/dma-mapping.h | 4 +-
> arch/openrisc/kernel/dma.c | 2 +-
> arch/parisc/include/asm/dma-mapping.h | 8 +-
> arch/parisc/kernel/drivers.c | 2 +-
> arch/parisc/kernel/pci-dma.c | 4 +-
> arch/powerpc/include/asm/device.h | 4 -
> arch/powerpc/include/asm/dma-mapping.h | 14 +-
> arch/powerpc/include/asm/pci.h | 4 +-
> arch/powerpc/include/asm/ps3.h | 2 +-
> arch/powerpc/include/asm/swiotlb.h | 2 +-
> arch/powerpc/kernel/dma-swiotlb.c | 2 +-
> arch/powerpc/kernel/dma.c | 8 +-
> arch/powerpc/kernel/pci-common.c | 6 +-
> arch/powerpc/platforms/cell/iommu.c | 6 +-
> arch/powerpc/platforms/pasemi/iommu.c | 2 +-
> arch/powerpc/platforms/pasemi/setup.c | 2 +-
> arch/powerpc/platforms/powernv/npu-dma.c | 2 +-
> arch/powerpc/platforms/ps3/system-bus.c | 8 +-
> arch/powerpc/platforms/pseries/ibmebus.c | 4 +-
> arch/powerpc/platforms/pseries/vio.c | 2 +-
> arch/s390/Kconfig | 1 +
> arch/s390/include/asm/device.h | 1 -
> arch/s390/include/asm/dma-mapping.h | 6 +-
> arch/s390/pci/pci.c | 2 +-
> arch/s390/pci/pci_dma.c | 2 +-
> arch/sh/include/asm/dma-mapping.h | 4 +-
> arch/sh/kernel/dma-nommu.c | 2 +-
> arch/sh/mm/consistent.c | 2 +-
> arch/sparc/include/asm/dma-mapping.h | 10 +-
> arch/sparc/kernel/iommu.c | 4 +-
> arch/sparc/kernel/ioport.c | 8 +-
> arch/sparc/kernel/pci_sun4v.c | 2 +-
> arch/tile/include/asm/device.h | 3 -
> arch/tile/include/asm/dma-mapping.h | 20 +--
> arch/tile/kernel/pci-dma.c | 24 +--
> arch/unicore32/include/asm/dma-mapping.h | 4 +-
> arch/unicore32/mm/dma-swiotlb.c | 2 +-
> arch/x86/include/asm/device.h | 5 +-
> arch/x86/include/asm/dma-mapping.h | 11 +-
> arch/x86/include/asm/iommu.h | 2 +-
> arch/x86/kernel/amd_gart_64.c | 2 +-
> arch/x86/kernel/pci-calgary_64.c | 6 +-
> arch/x86/kernel/pci-dma.c | 4 +-
> arch/x86/kernel/pci-nommu.c | 2 +-
> arch/x86/kernel/pci-swiotlb.c | 2 +-
> arch/x86/pci/common.c | 2 +-
> arch/x86/pci/sta2x11-fixup.c | 10 +-
> arch/x86/xen/pci-swiotlb-xen.c | 2 +-
> arch/xtensa/include/asm/device.h | 4 -
> arch/xtensa/include/asm/dma-mapping.h | 9 +-
> arch/xtensa/kernel/pci-dma.c | 2 +-
> drivers/infiniband/core/device.c | 9 +
> drivers/infiniband/core/sysfs.c | 2 +-
> drivers/infiniband/core/ucm.c | 2 +-
> drivers/infiniband/core/user_mad.c | 4 +-
> drivers/infiniband/core/uverbs_main.c | 2 +-
> drivers/infiniband/hw/cxgb3/iwch_provider.c | 2 +-
> drivers/infiniband/hw/cxgb4/provider.c | 2 +-
> drivers/infiniband/hw/hfi1/dma.c | 183 -------------------
> drivers/infiniband/hw/hfi1/mad.c | 2 +-
> drivers/infiniband/hw/hfi1/verbs.c | 2 +-
> drivers/infiniband/hw/hns/hns_roce_main.c | 2 +-
> drivers/infiniband/hw/hns/hns_roce_qp.c | 2 +-
> drivers/infiniband/hw/i40iw/i40iw_verbs.c | 1 -
> drivers/infiniband/hw/mlx4/main.c | 2 +-
> drivers/infiniband/hw/mlx4/mlx4_ib.h | 2 +-
> drivers/infiniband/hw/mlx4/mr.c | 6 +-
> drivers/infiniband/hw/mlx5/main.c | 2 +-
> drivers/infiniband/hw/mlx5/mr.c | 14 +-
> drivers/infiniband/hw/mthca/mthca_provider.c | 2 +-
> drivers/infiniband/hw/nes/nes_verbs.c | 1 -
> drivers/infiniband/hw/ocrdma/ocrdma_main.c | 2 +-
> drivers/infiniband/hw/qedr/main.c | 2 +-
> drivers/infiniband/hw/qib/qib_dma.c | 169 ------------------
> drivers/infiniband/hw/qib/qib_keys.c | 5 +-
> drivers/infiniband/hw/qib/qib_verbs.c | 2 +-
> drivers/infiniband/hw/usnic/usnic_ib_main.c | 2 +-
> drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c | 2 +-
> drivers/infiniband/sw/rdmavt/Kconfig | 1 +
> drivers/infiniband/sw/rdmavt/Makefile | 2 +-
> drivers/infiniband/sw/rdmavt/dma.c | 198
> ---------------------
> drivers/infiniband/sw/rdmavt/dma.h | 53 ------
> drivers/infiniband/sw/rdmavt/mr.c | 8 +-
> drivers/infiniband/sw/rdmavt/vt.c | 4 +-
> drivers/infiniband/sw/rdmavt/vt.h | 1 -
> drivers/infiniband/sw/rxe/Kconfig | 1 +
> drivers/infiniband/sw/rxe/Makefile | 1 -
> drivers/infiniband/sw/rxe/rxe_dma.c | 183 -------------------
> drivers/infiniband/sw/rxe/rxe_loc.h | 2 -
> drivers/infiniband/sw/rxe/rxe_verbs.c | 9 +-
> drivers/infiniband/ulp/ipoib/ipoib_ethtool.c | 2 +-
> drivers/infiniband/ulp/ipoib/ipoib_main.c | 2 +-
> drivers/infiniband/ulp/iser/iscsi_iser.c | 2 +-
> drivers/infiniband/ulp/srp/ib_srp.c | 4 +-
> drivers/infiniband/ulp/srpt/ib_srpt.c | 3 +-
> drivers/iommu/amd_iommu.c | 10 +-
> drivers/misc/mic/bus/mic_bus.c | 4 +-
> drivers/misc/mic/bus/scif_bus.c | 4 +-
> drivers/misc/mic/bus/scif_bus.h | 2 +-
> drivers/misc/mic/bus/vop_bus.c | 2 +-
> drivers/misc/mic/host/mic_boot.c | 4 +-
> drivers/nvme/host/rdma.c | 2 +-
> drivers/parisc/ccio-dma.c | 2 +-
> drivers/parisc/sba_iommu.c | 2 +-
> drivers/pci/host/vmd.c | 2 +-
> include/linux/device.h | 1 +
> include/linux/dma-mapping.h | 55 +++---
> include/linux/mic_bus.h | 2 +-
> include/rdma/ib_verbs.h | 143 ++-------------
> include/xen/arm/hypervisor.h | 2 +-
> lib/Kconfig | 10 ++
> lib/Makefile | 3 +-
> lib/dma-noop.c | 4 +-
> lib/dma-virt.c | 72 ++++++++
> net/rds/ib.h | 8 +-
> net/rds/ib_mr.h | 1 -
> 173 files changed, 437 insertions(+), 1298 deletions(-)
> delete mode 100644 drivers/infiniband/hw/hfi1/dma.c
> delete mode 100644 drivers/infiniband/hw/qib/qib_dma.c
> delete mode 100644 drivers/infiniband/sw/rdmavt/dma.c
> delete mode 100644 drivers/infiniband/sw/rdmavt/dma.h
> delete mode 100644 drivers/infiniband/sw/rxe/rxe_dma.c
> create mode 100644 lib/dma-virt.c
>
> --
> 2.11.0
>
> --
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>
Hello Bart, if this the match to what you shared with me earlier I have tested the IB/SRP part of this series.
This is the IB/RDMA/SRP stack, testing both ib_srp and ib_srpt.
1. Tested direct and buffered read I/O with 4MB I/O and smaller I/O sizes direct to mpath devices
2. Tested read and write I/O with 4MB and smaller I/O to XFS file systems.
3. Removed a SRP paths one by one and let then reconnect with no issues
All my tests were SRP using connectX-4 (mlx5) at EDR (100G)
For: Optimize DMA mapping tree, branch for next from latest copy on:
https://github.com/bvanassche/linux
Tested-by: Laurence Oberman <loberman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
--
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^ permalink raw reply [flat|nested] 60+ messages in thread* Re: [PATCH v3 00/37] IB: Optimize DMA mapping
[not found] ` <20170120210437.26389-1-bart.vanassche-XdAiOPVOjttBDgjK7y7TUQ@public.gmane.org>
` (35 preceding siblings ...)
2017-01-20 21:57 ` [PATCH v3 00/37] IB: Optimize DMA mapping Laurence Oberman
@ 2017-01-24 17:38 ` Doug Ledford
[not found] ` <1485279487.43764.38.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
36 siblings, 1 reply; 60+ messages in thread
From: Doug Ledford @ 2017-01-24 17:38 UTC (permalink / raw)
To: Bart Van Assche; +Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA
[-- Attachment #1: Type: text/plain, Size: 2499 bytes --]
On Fri, 2017-01-20 at 13:04 -0800, Bart Van Assche wrote:
> Hello Doug,
>
> As you know there are two sets of DMA mapping operations in the Linux
> kernel:
> - One set of DMA mapping operations that is used by most drivers.
> - Another set of DMA mapping operations that is only used by the RDMA
> drivers.
> Having two types of DMA mapping operations is not only a source of
> confusion but also a source of unnecessary overhead. The DMA mapping
> operations are in the hot path so it is important that the overhead
> of these operations is as low as possible. Hence this patch series
> that converts the RDMA code to the standard DMA mapping operations
> and thereby eliminates the if (dev->dma_ops) test from the hot path.
>
> The changes compared to version 2 of this patch series are:
> - Left out the inlining of the ib_dma_map_*() functions to keep the
> number of patches in this patch series reasonable.
> - Reworked this patch series such that (hopefully) the hfi1 and qib
> drivers keep working.
>
> The changes compared to version 1 of this patch series are:
> - Patch "Move dma_ops from archdata into struct device" has been
> split into three patches.
> - Patch "treewide: Inline ib_dma_map_*() functions" has been split
> into 15 patches (one per driver).
> - A patch has been added that builds dma_noop_ops only for the
> architectures that need it.
> - The new dma_virt_ops is only built if it is used by a driver.
> - In these last 15 patches indentation has been adjusted to keep
> the arguments aligned with the opening parenthesis.
Hi Bart,
I think this has enough Acks to move foward (especially from the larger
kernel community on the core kernel bits, such as GKH's ack on the core
bits). I've pulled it into a branch (there were a few fixups I had to
do, compile testing that now). However, I'm going to wait until the
very end to merge this branch right before my pull request. That way
if Linus has any objections, he can just pop the top 37 patches off of
my pull request and effectively remove this patchset, at which point we
can fix up whatever he objected to and resubmit. And I'm only doing
that because of the number of patches that are either outside of
drivers/infiniband or treewide in this series.
--
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
GPG KeyID: B826A3330E572FDD
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^ permalink raw reply [flat|nested] 60+ messages in thread