* [PATCH v5 00/44] dma-mapping: Use unsigned long for dma_attrs
@ 2016-06-30 8:23 Krzysztof Kozlowski
[not found] ` <1467275171-6298-1-git-send-email-k.kozlowski@samsung.com>
[not found] ` <1467275019-30789-1-git-send-email-k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
0 siblings, 2 replies; 5+ messages in thread
From: Krzysztof Kozlowski @ 2016-06-30 8:23 UTC (permalink / raw)
To: Andrew Morton
Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA, Krzysztof Kozlowski,
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aW5mby9mcmVlZHJlbm8K
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH v5 35/44] parisc: dma-mapping: Use unsigned long for dma_attrs
[not found] ` <1467275171-6298-1-git-send-email-k.kozlowski@samsung.com>
@ 2016-06-30 8:26 ` Krzysztof Kozlowski
[not found] ` <1467275171-6298-1-git-send-email-k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
1 sibling, 0 replies; 5+ messages in thread
From: Krzysztof Kozlowski @ 2016-06-30 8:26 UTC (permalink / raw)
To: Andrew Morton
Cc: linux-kernel, hch, Krzysztof Kozlowski, Bartlomiej Zolnierkiewicz,
James E.J. Bottomley, Helge Deller, linux-parisc
Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
arch/parisc/kernel/pci-dma.c | 16 ++++++++--------
drivers/parisc/ccio-dma.c | 16 ++++++++--------
drivers/parisc/sba_iommu.c | 16 ++++++++--------
3 files changed, 24 insertions(+), 24 deletions(-)
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index a27e4928bf73..845fdd52e4c5 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -414,7 +414,7 @@ pcxl_dma_init(void)
__initcall(pcxl_dma_init);
static void *pa11_dma_alloc(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
+ dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
{
unsigned long vaddr;
unsigned long paddr;
@@ -441,7 +441,7 @@ static void *pa11_dma_alloc(struct device *dev, size_t size,
}
static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
- dma_addr_t dma_handle, struct dma_attrs *attrs)
+ dma_addr_t dma_handle, unsigned long attrs)
{
int order;
@@ -454,7 +454,7 @@ static void pa11_dma_free(struct device *dev, size_t size, void *vaddr,
static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
- enum dma_data_direction direction, struct dma_attrs *attrs)
+ enum dma_data_direction direction, unsigned long attrs)
{
void *addr = page_address(page) + offset;
BUG_ON(direction == DMA_NONE);
@@ -465,7 +465,7 @@ static dma_addr_t pa11_dma_map_page(struct device *dev, struct page *page,
static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
size_t size, enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
BUG_ON(direction == DMA_NONE);
@@ -484,7 +484,7 @@ static void pa11_dma_unmap_page(struct device *dev, dma_addr_t dma_handle,
static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
int nents, enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
int i;
struct scatterlist *sg;
@@ -503,7 +503,7 @@ static int pa11_dma_map_sg(struct device *dev, struct scatterlist *sglist,
static void pa11_dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
int nents, enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
int i;
struct scatterlist *sg;
@@ -577,7 +577,7 @@ struct dma_map_ops pcxl_dma_ops = {
};
static void *pcx_dma_alloc(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs)
+ dma_addr_t *dma_handle, gfp_t flag, unsigned long attrs)
{
void *addr;
@@ -592,7 +592,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
}
static void pcx_dma_free(struct device *dev, size_t size, void *vaddr,
- dma_addr_t iova, struct dma_attrs *attrs)
+ dma_addr_t iova, unsigned long attrs)
{
free_pages((unsigned long)vaddr, get_order(size));
return;
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index e24b05996a1b..3ed6238f8f6e 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -790,7 +790,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
static dma_addr_t
ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
size_t size, enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
return ccio_map_single(dev, page_address(page) + offset, size,
direction);
@@ -806,7 +806,7 @@ ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
*/
static void
ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
- enum dma_data_direction direction, struct dma_attrs *attrs)
+ enum dma_data_direction direction, unsigned long attrs)
{
struct ioc *ioc;
unsigned long flags;
@@ -844,7 +844,7 @@ ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
*/
static void *
ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
void *ret;
#if 0
@@ -878,9 +878,9 @@ ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
*/
static void
ccio_free(struct device *dev, size_t size, void *cpu_addr,
- dma_addr_t dma_handle, struct dma_attrs *attrs)
+ dma_addr_t dma_handle, unsigned long attrs)
{
- ccio_unmap_page(dev, dma_handle, size, 0, NULL);
+ ccio_unmap_page(dev, dma_handle, size, 0, 0);
free_pages((unsigned long)cpu_addr, get_order(size));
}
@@ -907,7 +907,7 @@ ccio_free(struct device *dev, size_t size, void *cpu_addr,
*/
static int
ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
- enum dma_data_direction direction, struct dma_attrs *attrs)
+ enum dma_data_direction direction, unsigned long attrs)
{
struct ioc *ioc;
int coalesced, filled = 0;
@@ -984,7 +984,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
*/
static void
ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
- enum dma_data_direction direction, struct dma_attrs *attrs)
+ enum dma_data_direction direction, unsigned long attrs)
{
struct ioc *ioc;
@@ -1004,7 +1004,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
#endif
ccio_unmap_page(dev, sg_dma_address(sglist),
- sg_dma_len(sglist), direction, NULL);
+ sg_dma_len(sglist), direction, 0);
++sglist;
}
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 42ec4600b7e4..151b86b6d2e2 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -783,7 +783,7 @@ sba_map_single(struct device *dev, void *addr, size_t size,
static dma_addr_t
sba_map_page(struct device *dev, struct page *page, unsigned long offset,
size_t size, enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
return sba_map_single(dev, page_address(page) + offset, size,
direction);
@@ -801,7 +801,7 @@ sba_map_page(struct device *dev, struct page *page, unsigned long offset,
*/
static void
sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
- enum dma_data_direction direction, struct dma_attrs *attrs)
+ enum dma_data_direction direction, unsigned long attrs)
{
struct ioc *ioc;
#if DELAYED_RESOURCE_CNT > 0
@@ -876,7 +876,7 @@ sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
* See Documentation/DMA-API-HOWTO.txt
*/
static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle,
- gfp_t gfp, struct dma_attrs *attrs)
+ gfp_t gfp, unsigned long attrs)
{
void *ret;
@@ -908,9 +908,9 @@ static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle
*/
static void
sba_free(struct device *hwdev, size_t size, void *vaddr,
- dma_addr_t dma_handle, struct dma_attrs *attrs)
+ dma_addr_t dma_handle, unsigned long attrs)
{
- sba_unmap_page(hwdev, dma_handle, size, 0, NULL);
+ sba_unmap_page(hwdev, dma_handle, size, 0, 0);
free_pages((unsigned long) vaddr, get_order(size));
}
@@ -943,7 +943,7 @@ int dump_run_sg = 0;
*/
static int
sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
- enum dma_data_direction direction, struct dma_attrs *attrs)
+ enum dma_data_direction direction, unsigned long attrs)
{
struct ioc *ioc;
int coalesced, filled = 0;
@@ -1026,7 +1026,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
*/
static void
sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
- enum dma_data_direction direction, struct dma_attrs *attrs)
+ enum dma_data_direction direction, unsigned long attrs)
{
struct ioc *ioc;
#ifdef ASSERT_PDIR_SANITY
@@ -1051,7 +1051,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
while (sg_dma_len(sglist) && nents--) {
sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist),
- direction, NULL);
+ direction, 0);
#ifdef SBA_COLLECT_STATS
ioc->usg_pages += ((sg_dma_address(sglist) & ~IOVP_MASK) + sg_dma_len(sglist) + IOVP_SIZE - 1) >> PAGE_SHIFT;
ioc->usingle_calls--; /* kluge since call is unmap_sg() */
--
1.9.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v5 43/44] dma-mapping: Remove dma_get_attr
[not found] ` <1467275171-6298-1-git-send-email-k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
@ 2016-06-30 8:26 ` Krzysztof Kozlowski
0 siblings, 0 replies; 5+ messages in thread
From: Krzysztof Kozlowski @ 2016-06-30 8:26 UTC (permalink / raw)
To: Andrew Morton
Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA, Krzysztof Kozlowski,
linux-ia64-u79uwXL29TY76Z2rM5mHXA, Heiko Stuebner,
linux-doc-u79uwXL29TY76Z2rM5mHXA, David Airlie,
Benjamin Herrenschmidt, Will Deacon,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW, James E.J. Bottomley,
Paul Mackerras, Hans-Christian Egtvedt, Jonas Bonn,
Stefano Stabellini, Pawel Osciak,
linux-snps-arc-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Jonathan Corbet,
Michael Ellerman, Helge Deller, Russell King,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
hch-wEGCiKHe2LqWVfeAwA7xHQ,
linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Catalin Marinas,
xen-devel
After switching DMA attributes to unsigned long it is easier to just
compare the bits.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
[for avr32]
Acked-by: Hans-Christian Noren Egtvedt <egtvedt-BrfabpQBY5qlHtIdYg32fQ@public.gmane.org>
[for arc]
Acked-by: Vineet Gupta <vgupta-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>
[for arm64 and dma-iommu]
Acked-by: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
---
Documentation/DMA-API.txt | 4 +--
arch/arc/mm/dma.c | 4 +--
arch/arm/mm/dma-mapping.c | 36 ++++++++++++--------------
arch/arm/xen/mm.c | 4 +--
arch/arm64/mm/dma-mapping.c | 10 +++----
arch/avr32/mm/dma-coherent.c | 4 +--
arch/ia64/sn/pci/pci_dma.c | 10 ++-----
arch/metag/kernel/dma.c | 2 +-
arch/mips/mm/dma-default.c | 6 ++---
arch/openrisc/kernel/dma.c | 4 +--
arch/parisc/kernel/pci-dma.c | 2 +-
arch/powerpc/platforms/cell/iommu.c | 12 ++++-----
drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 2 +-
drivers/iommu/dma-iommu.c | 2 +-
drivers/media/v4l2-core/videobuf2-dma-contig.c | 2 +-
include/linux/dma-mapping.h | 10 -------
16 files changed, 47 insertions(+), 67 deletions(-)
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 24f9688bb98a..1d26eeb6b5f6 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -422,9 +422,7 @@ void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
unsigned long attrs)
{
....
- int foo = dma_get_attr(DMA_ATTR_FOO, attrs);
- ....
- if (foo)
+ if (attrs & DMA_ATTR_FOO)
/* twizzle the frobnozzle */
....
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 3d1f467d1792..74bbe68dce9d 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -46,7 +46,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
* (vs. always going to memory - thus are faster)
*/
if ((is_isa_arcv2() && ioc_exists) ||
- dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+ (attrs & DMA_ATTR_NON_CONSISTENT))
need_coh = 0;
/*
@@ -95,7 +95,7 @@ static void arc_dma_free(struct device *dev, size_t size, void *vaddr,
struct page *page = virt_to_page(dma_handle);
int is_non_coh = 1;
- is_non_coh = dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs) ||
+ is_non_coh = (attrs & DMA_ATTR_NON_CONSISTENT) ||
(is_isa_arcv2() && ioc_exists);
if (PageHighMem(page) || !is_non_coh)
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index ebb3fde99043..43e03b5293d0 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -126,7 +126,7 @@ static dma_addr_t arm_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__dma_page_cpu_to_dev(page, offset, size, dir);
return pfn_to_dma(dev, page_to_pfn(page)) + offset;
}
@@ -155,7 +155,7 @@ static dma_addr_t arm_coherent_dma_map_page(struct device *dev, struct page *pag
static void arm_dma_unmap_page(struct device *dev, dma_addr_t handle,
size_t size, enum dma_data_direction dir, unsigned long attrs)
{
- if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__dma_page_dev_to_cpu(pfn_to_page(dma_to_pfn(dev, handle)),
handle & ~PAGE_MASK, size, dir);
}
@@ -622,9 +622,9 @@ static void __free_from_contiguous(struct device *dev, struct page *page,
static inline pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot)
{
- prot = dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs) ?
- pgprot_writecombine(prot) :
- pgprot_dmacoherent(prot);
+ prot = (attrs & DMA_ATTR_WRITE_COMBINE) ?
+ pgprot_writecombine(prot) :
+ pgprot_dmacoherent(prot);
return prot;
}
@@ -744,7 +744,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
.gfp = gfp,
.prot = prot,
.caller = caller,
- .want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs),
+ .want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0),
};
#ifdef CONFIG_DMA_API_DEBUG
@@ -887,7 +887,7 @@ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr,
.size = PAGE_ALIGN(size),
.cpu_addr = cpu_addr,
.page = page,
- .want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs),
+ .want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0),
};
buf = arm_dma_buffer_find(cpu_addr);
@@ -1267,7 +1267,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size,
if (!pages)
return NULL;
- if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs))
+ if (attrs & DMA_ATTR_FORCE_CONTIGUOUS)
{
unsigned long order = get_order(size);
struct page *page;
@@ -1285,7 +1285,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size,
}
/* Go straight to 4K chunks if caller says it's OK. */
- if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
+ if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
order_idx = ARRAY_SIZE(iommu_order_array) - 1;
/*
@@ -1346,7 +1346,7 @@ static int __iommu_free_buffer(struct device *dev, struct page **pages,
int count = size >> PAGE_SHIFT;
int i;
- if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs)) {
+ if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) {
dma_release_from_contiguous(dev, pages[0], count);
} else {
for (i = 0; i < count; i++)
@@ -1445,7 +1445,7 @@ static struct page **__iommu_get_pages(void *cpu_addr, unsigned long attrs)
if (__in_atomic_pool(cpu_addr, PAGE_SIZE))
return __atomic_get_pages(cpu_addr);
- if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs))
+ if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
return cpu_addr;
area = find_vm_area(cpu_addr);
@@ -1512,7 +1512,7 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size,
if (*handle == DMA_ERROR_CODE)
goto err_buffer;
- if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs))
+ if (attrs & DMA_ATTR_NO_KERNEL_MAPPING)
return pages;
addr = __iommu_alloc_remap(pages, size, gfp, prot,
@@ -1583,7 +1583,7 @@ void arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr,
return;
}
- if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs)) {
+ if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0) {
dma_common_free_remap(cpu_addr, size,
VM_ARM_DMA_CONSISTENT | VM_USERMAP);
}
@@ -1653,8 +1653,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg,
phys_addr_t phys = page_to_phys(sg_page(s));
unsigned int len = PAGE_ALIGN(s->offset + s->length);
- if (!is_coherent &&
- !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__dma_page_cpu_to_dev(sg_page(s), s->offset, s->length, dir);
prot = __dma_direction_to_prot(dir);
@@ -1767,8 +1766,7 @@ static void __iommu_unmap_sg(struct device *dev, struct scatterlist *sg,
if (sg_dma_len(s))
__iommu_remove_mapping(dev, sg_dma_address(s),
sg_dma_len(s));
- if (!is_coherent &&
- !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__dma_page_dev_to_cpu(sg_page(s), s->offset,
s->length, dir);
}
@@ -1892,7 +1890,7 @@ static dma_addr_t arm_iommu_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__dma_page_cpu_to_dev(page, offset, size, dir);
return arm_coherent_iommu_map_page(dev, page, offset, size, dir, attrs);
@@ -1943,7 +1941,7 @@ static void arm_iommu_unmap_page(struct device *dev, dma_addr_t handle,
if (!iova)
return;
- if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__dma_page_dev_to_cpu(page, offset, size, dir);
iommu_unmap(mapping->domain, iova, len);
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index fc67ed236a10..d062f08f5020 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -102,7 +102,7 @@ void __xen_dma_map_page(struct device *hwdev, struct page *page,
{
if (is_device_dma_coherent(hwdev))
return;
- if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
return;
__xen_dma_page_cpu_to_dev(hwdev, dev_addr, size, dir);
@@ -115,7 +115,7 @@ void __xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
{
if (is_device_dma_coherent(hwdev))
return;
- if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
return;
__xen_dma_page_dev_to_cpu(hwdev, handle, size, dir);
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 65f69943b1cb..e82763af137f 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -32,7 +32,7 @@
static pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot,
bool coherent)
{
- if (!coherent || dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+ if (!coherent || (attrs & DMA_ATTR_WRITE_COMBINE))
return pgprot_writecombine(prot);
return prot;
}
@@ -701,7 +701,7 @@ static dma_addr_t __iommu_map_page(struct device *dev, struct page *page,
dma_addr_t dev_addr = iommu_dma_map_page(dev, page, offset, size, prot);
if (!iommu_dma_mapping_error(dev, dev_addr) &&
- !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__iommu_sync_single_for_device(dev, dev_addr, size, dir);
return dev_addr;
@@ -711,7 +711,7 @@ static void __iommu_unmap_page(struct device *dev, dma_addr_t dev_addr,
size_t size, enum dma_data_direction dir,
unsigned long attrs)
{
- if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__iommu_sync_single_for_cpu(dev, dev_addr, size, dir);
iommu_dma_unmap_page(dev, dev_addr, size, dir, attrs);
@@ -751,7 +751,7 @@ static int __iommu_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
{
bool coherent = is_device_dma_coherent(dev);
- if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__iommu_sync_sg_for_device(dev, sgl, nelems, dir);
return iommu_dma_map_sg(dev, sgl, nelems,
@@ -763,7 +763,7 @@ static void __iommu_unmap_sg_attrs(struct device *dev,
enum dma_data_direction dir,
unsigned long attrs)
{
- if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs))
+ if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0)
__iommu_sync_sg_for_cpu(dev, sgl, nelems, dir);
iommu_dma_unmap_sg(dev, sgl, nelems, dir, attrs);
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c
index fc51f4421933..58610d0df7ed 100644
--- a/arch/avr32/mm/dma-coherent.c
+++ b/arch/avr32/mm/dma-coherent.c
@@ -109,7 +109,7 @@ static void *avr32_dma_alloc(struct device *dev, size_t size,
return NULL;
phys = page_to_phys(page);
- if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+ if (attrs & DMA_ATTR_WRITE_COMBINE) {
/* Now, map the page into P3 with write-combining turned on */
*handle = phys;
return __ioremap(phys, size, _PAGE_BUFFER);
@@ -123,7 +123,7 @@ static void avr32_dma_free(struct device *dev, size_t size,
{
struct page *page;
- if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs)) {
+ if (attrs & DMA_ATTR_WRITE_COMBINE) {
iounmap(cpu_addr);
page = phys_to_page(handle);
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index 6b78fc953c4b..74c934a997bb 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -183,14 +183,11 @@ static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page,
unsigned long phys_addr;
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
- int dmabarr;
-
- dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs);
BUG_ON(!dev_is_pci(dev));
phys_addr = __pa(cpu_addr);
- if (dmabarr)
+ if (attrs & DMA_ATTR_WRITE_BARRIER)
dma_addr = provider->dma_map_consistent(pdev, phys_addr,
size, SN_DMA_ADDR_PHYS);
else
@@ -280,9 +277,6 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
struct pci_dev *pdev = to_pci_dev(dev);
struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
int i;
- int dmabarr;
-
- dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs);
BUG_ON(!dev_is_pci(dev));
@@ -292,7 +286,7 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl,
for_each_sg(sgl, sg, nhwentries, i) {
dma_addr_t dma_addr;
phys_addr = SG_ENT_PHYS_ADDRESS(sg);
- if (dmabarr)
+ if (attrs & DMA_ATTR_WRITE_BARRIER)
dma_addr = provider->dma_map_consistent(pdev,
phys_addr,
sg->length,
diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index d68f498e82a1..0db31e24c541 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -337,7 +337,7 @@ static int metag_dma_mmap(struct device *dev, struct vm_area_struct *vma,
struct metag_vm_region *c;
int ret = -ENXIO;
- if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+ if (attrs & DMA_ATTR_WRITE_COMBINE)
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
else
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 0ed9000dc1ff..b2eadd6fa9a1 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -141,7 +141,7 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
* XXX: seems like the coherent and non-coherent implementations could
* be consolidated.
*/
- if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+ if (attrs & DMA_ATTR_NON_CONSISTENT)
return mips_dma_alloc_noncoherent(dev, size, dma_handle, gfp);
gfp = massage_gfp_flags(dev, gfp);
@@ -182,7 +182,7 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
struct page *page = NULL;
- if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+ if (attrs & DMA_ATTR_NON_CONSISTENT) {
mips_dma_free_noncoherent(dev, size, vaddr, dma_handle);
return;
}
@@ -214,7 +214,7 @@ static int mips_dma_mmap(struct device *dev, struct vm_area_struct *vma,
pfn = page_to_pfn(virt_to_page((void *)addr));
- if (dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs))
+ if (attrs & DMA_ATTR_WRITE_COMBINE)
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
else
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index 50eb1f26c540..140c99140649 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -100,7 +100,7 @@ or1k_dma_alloc(struct device *dev, size_t size,
va = (unsigned long)page;
- if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+ if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) {
/*
* We need to iterate through the pages, clearing the dcache for
* them and setting the cache-inhibit bit.
@@ -124,7 +124,7 @@ or1k_dma_free(struct device *dev, size_t size, void *vaddr,
.mm = &init_mm
};
- if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) {
+ if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0) {
/* walk_page_range shouldn't be able to fail here */
WARN_ON(walk_page_range(va, va + size, &walk));
}
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 845fdd52e4c5..02d9ed0f3949 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -581,7 +581,7 @@ static void *pcx_dma_alloc(struct device *dev, size_t size,
{
void *addr;
- if (!dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs))
+ if ((attrs & DMA_ATTR_NON_CONSISTENT) == 0)
return NULL;
addr = (void *)__get_free_pages(flag, get_order(size));
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index c8e11e020335..6128bdb428b2 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -193,7 +193,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages,
base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M |
CBE_IOPTE_SO_RW | (window->ioid & CBE_IOPTE_IOID_Mask);
#endif
- if (unlikely(dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)))
+ if (unlikely(attrs & DMA_ATTR_WEAK_ORDERING))
base_pte &= ~CBE_IOPTE_SO_RW;
io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
@@ -600,7 +600,7 @@ static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
enum dma_data_direction direction,
unsigned long attrs)
{
- if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+ if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
return dma_direct_ops.map_page(dev, page, offset, size,
direction, attrs);
else
@@ -613,7 +613,7 @@ static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction direction,
unsigned long attrs)
{
- if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+ if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
dma_direct_ops.unmap_page(dev, dma_addr, size, direction,
attrs);
else
@@ -625,7 +625,7 @@ static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction,
unsigned long attrs)
{
- if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+ if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
return dma_direct_ops.map_sg(dev, sg, nents, direction, attrs);
else
return ppc_iommu_map_sg(dev, cell_get_iommu_table(dev), sg,
@@ -637,7 +637,7 @@ static void dma_fixed_unmap_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction direction,
unsigned long attrs)
{
- if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
+ if (iommu_fixed_is_weak == (attrs & DMA_ATTR_WEAK_ORDERING))
dma_direct_ops.unmap_sg(dev, sg, nents, direction, attrs);
else
ppc_iommu_unmap_sg(cell_get_iommu_table(dev), sg, nents,
@@ -1162,7 +1162,7 @@ static int __init setup_iommu_fixed(char *str)
pciep = of_find_node_by_type(NULL, "pcie-endpoint");
if (strcmp(str, "weak") == 0 || (pciep && strcmp(str, "strong") != 0))
- iommu_fixed_is_weak = 1;
+ iommu_fixed_is_weak = DMA_ATTR_WEAK_ORDERING;
of_node_put(pciep);
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index 7b1788e2a808..4a28d6348c76 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -273,7 +273,7 @@ void *rockchip_gem_prime_vmap(struct drm_gem_object *obj)
{
struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
- if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, rk_obj->dma_attrs))
+ if (rk_obj->dma_attrs & DMA_ATTR_NO_KERNEL_MAPPING)
return NULL;
return rk_obj->kvaddr;
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 6c1bda504fb1..08a1e2f3690f 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -306,7 +306,7 @@ struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
} else {
size = ALIGN(size, min_size);
}
- if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs))
+ if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES)
alloc_sizes = min_size;
count = PAGE_ALIGN(size) >> PAGE_SHIFT;
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index 8009a582326b..d2ab541614b8 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -160,7 +160,7 @@ static void *vb2_dc_alloc(void *alloc_ctx, unsigned long size,
return ERR_PTR(-ENOMEM);
}
- if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, buf->attrs))
+ if ((buf->attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0)
buf->vaddr = buf->cookie;
/* Prevent the device from being released while the buffer is used */
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 1fd9860487b1..d8fb67783cb7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -101,16 +101,6 @@ static inline int is_device_dma_capable(struct device *dev)
return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
}
-/**
- * dma_get_attr - check for a specific attribute
- * @attr: attribute to look for
- * @attrs: attributes to check within
- */
-static inline bool dma_get_attr(unsigned long attr, unsigned long attrs)
-{
- return !!(attr & attrs);
-}
-
#ifdef CONFIG_HAVE_GENERIC_DMA_COHERENT
/*
* These three functions are only for dma allocator.
--
1.9.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v5 00/44] dma-mapping: Use unsigned long for dma_attrs
[not found] ` <1467275019-30789-1-git-send-email-k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
@ 2016-07-12 12:16 ` Daniel Vetter
2016-07-12 12:19 ` Krzysztof Kozlowski
0 siblings, 1 reply; 5+ messages in thread
From: Daniel Vetter @ 2016-07-12 12:16 UTC (permalink / raw)
To: Krzysztof Kozlowski
Cc: linux-mips-6z/3iImG2C8G8FEW9MqTrA,
linux-fbdev-u79uwXL29TY76Z2rM5mHXA,
linux-ia64-u79uwXL29TY76Z2rM5mHXA,
linux-doc-u79uwXL29TY76Z2rM5mHXA,
linux-pci-u79uwXL29TY76Z2rM5mHXA,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
sparclinux-u79uwXL29TY76Z2rM5mHXA,
linux-s390-u79uwXL29TY76Z2rM5mHXA,
linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA,
linux-c6x-dev-jPsnJVOj+W6hPH1hqNUYSQ,
linux-rdma-u79uwXL29TY76Z2rM5mHXA,
linux-hexagon-u79uwXL29TY76Z2rM5mHXA,
linux-sh-u79uwXL29TY76Z2rM5mHXA, hch-wEGCiKHe2LqWVfeAwA7xHQ,
linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW,
xen-devel-GuqFBffKawtpuQazS67q72D2FQJk+8+b,
linux-snps-arc-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-media-u79uwXL29TY76Z2rM5mHXA,
linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw, Bartlomiej Zolnierkiewicz,
linux-arm-msm-u79uwXL29TY76Z2rM5mHXA,
linux-m68k-cunTk1MwBs8S/qaLPR03pWD2FQJk+8+b,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-omap-u79uwXL29TY76Z2rM5mHXA,
linux-metag-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
linux-cris-kernel-VrBV9hrLPhE, linux-parisc
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v5 00/44] dma-mapping: Use unsigned long for dma_attrs
2016-07-12 12:16 ` [PATCH v5 00/44] dma-mapping: Use unsigned long for dma_attrs Daniel Vetter
@ 2016-07-12 12:19 ` Krzysztof Kozlowski
0 siblings, 0 replies; 5+ messages in thread
From: Krzysztof Kozlowski @ 2016-07-12 12:19 UTC (permalink / raw)
To: Andrew Morton, linux-mips, linux-ia64, linux-doc, linux-pci,
linux-fbdev, dri-devel, sparclinux, linux-s390, linux-samsung-soc,
linux-c6x-dev, linux-rdma, linux-hexagon, linux-sh, hch,
linux-rockchip, nouveau, xen-devel, linux-snps-arc, linux-media,
linux-xtensa, Bartlomiej Zolnierkiewicz, linux-arm-msm,
linux-m68k, linux-mediatek, linux-omap, linux-metag,
linux-arm-kernel
On 07/12/2016 02:16 PM, Daniel Vetter wrote:
> On Thu, Jun 30, 2016 at 10:23:39AM +0200, Krzysztof Kozlowski wrote:
>> Hi,
>>
>>
>> This is fifth approach for replacing struct dma_attrs with unsigned
>> long.
>>
>> The main patch (1/44) doing the change is split into many subpatches
>> for easier review (2-42). They should be squashed together when
>> applying.
>
> For all the drm driver patches:
>
> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
>
> Should I pull these in through drm-misc, or do you prefer to merge them
> through a special topic branch (with everything else) instead on your own?
> -Daniel
Thanks. I saw today that Andrew Morton applied the patchset so I think
he will handle it.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-07-12 12:19 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2016-06-30 8:23 [PATCH v5 00/44] dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski
[not found] ` <1467275171-6298-1-git-send-email-k.kozlowski@samsung.com>
2016-06-30 8:26 ` [PATCH v5 35/44] parisc: " Krzysztof Kozlowski
[not found] ` <1467275171-6298-1-git-send-email-k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-06-30 8:26 ` [PATCH v5 43/44] dma-mapping: Remove dma_get_attr Krzysztof Kozlowski
[not found] ` <1467275019-30789-1-git-send-email-k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2016-07-12 12:16 ` [PATCH v5 00/44] dma-mapping: Use unsigned long for dma_attrs Daniel Vetter
2016-07-12 12:19 ` Krzysztof Kozlowski
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