[PATCH 30/33] powerpc/dma: remove set_dma_offset

Christoph Hellwig
2018-10-09T13:26:51Z

There is no good reason for this helper, just opencode it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/powerpc/include/asm/dma-mapping.h | 6 ------
arch/powerpc/kernel/pci-common.c | 2 +-
arch/powerpc/platforms/cell/iommu.c | 4 ++--
arch/powerpc/platforms/powernv/pci-ioda.c | 6 +++---
arch/powerpc/platforms/pseries/iommu.c | 7 ++-----
arch/powerpc/sysdev/dart_iommu.c | 2 +-
arch/powerpc/sysdev/fsl_pci.c | 2 +-
drivers/misc/cxl/vphb.c | 2 +-
8 files changed, 11 insertions(+), 20 deletions(-)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 2d0879b0acf3..e12439ae8211 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -87,11 +87,5 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return NULL;
}

-static inline void set_dma_offset(struct device *dev, dma_addr_t off)
-{
- if (dev)
- dev->archdata.dma_offset = off;
-}
-
#endif /* __KERNEL__ */
#endif /* _ASM_DMA_MAPPING_H */
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index a84707680525..fca2b0bafd82 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -966,7 +966,7 @@ static void pcibios_setup_device(struct pci_dev *dev)

/* Hook up default DMA ops */
set_dma_ops(&dev->dev, pci_dma_ops);
- set_dma_offset(&dev->dev, PCI_DRAM_OFFSET);
+ dev->dev.archdata.dma_offset = PCI_DRAM_OFFSET;

/* Additional platform DMA/iommu setup */
phb = pci_bus_to_host(dev->bus);
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 93c7e4aef571..997ee0f5fc2f 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -577,10 +577,10 @@ static void cell_dma_dev_setup(struct device *dev)
u64 addr = cell_iommu_get_fixed_address(dev);

if (addr != OF_BAD_ADDR)
- set_dma_offset(dev, addr + dma_iommu_fixed_base);
+ dev->archdata.dma_offset = addr + dma_iommu_fixed_base;
set_iommu_table_base(dev, cell_get_iommu_table(dev));
} else {
- set_dma_offset(dev, cell_dma_nommu_offset);
+ dev->archdata.dma_offset = cell_dma_nommu_offset;
}
}

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 5748b62e2e86..e2333e10598d 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1660,7 +1660,7 @@ static void pnv_pci_ioda_dma_dev_setup(struct pnv_phb *phb, struct pci_dev *pdev

pe = &phb->ioda.pe_array[pdn->pe_number];
WARN_ON(get_dma_ops(&pdev->dev) != &dma_iommu_ops);
- set_dma_offset(&pdev->dev, pe->tce_bypass_base);
+ pdev->dev.archdata.dma_offset = pe->tce_bypass_base;
set_iommu_table_base(&pdev->dev, pe->table_group.tables[0]);
/*
* Note: iommu_add_device() will fail here as
@@ -1773,7 +1773,7 @@ static bool pnv_pci_ioda_iommu_bypass_supported(struct pci_dev *pdev,
if (rc)
return rc;
/* 4GB offset bypasses 32-bit space */
- set_dma_offset(&pdev->dev, (1ULL << 32));
+ pdev->dev.archdata.dma_offset = (1ULL << 32);
return true;
}

@@ -1788,7 +1788,7 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe,

list_for_each_entry(dev, &bus->devices, bus_list) {
set_iommu_table_base(&dev->dev, pe->table_group.tables[0]);
- set_dma_offset(&dev->dev, pe->tce_bypass_base);
+ dev->dev.archdata.dma_offset = pe->tce_bypass_base;
if (add_to_group)
iommu_add_device(&dev->dev);

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 8965d174c53b..a2ff20d154fe 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -1197,7 +1197,6 @@ static bool iommu_bypass_supported_pSeriesLP(struct pci_dev *pdev, u64 dma_mask)
{
struct device_node *dn = pci_device_to_OF_node(pdev), *pdn;
const __be32 *dma_window = NULL;
- u64 dma_offset;

/* only attempt to use a new window if 64-bit DMA is requested */
if (dma_mask < DMA_BIT_MASK(64))
@@ -1219,11 +1218,9 @@ static bool iommu_bypass_supported_pSeriesLP(struct pci_dev *pdev, u64 dma_mask)
}

if (pdn && PCI_DN(pdn)) {
- dma_offset = enable_ddw(pdev, pdn);
- if (dma_offset != 0) {
- set_dma_offset(&pdev->dev, dma_offset);
+ pdev->dev.archdata.dma_offset = enable_ddw(pdev, pdn);
+ if (pdev->dev.archdata.dma_offset)
return true;
- }
}

return false;
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index e7d1645a2d2e..21d7e8a30aea 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -386,7 +386,7 @@ static bool dart_device_on_pcie(struct device *dev)
static void pci_dma_dev_setup_dart(struct pci_dev *dev)
{
if (dart_is_u4 && dart_device_on_pcie(&dev->dev))
- set_dma_offset(&dev->dev, DART_U4_BYPASS_BASE);
+ dev->dev.archdata.dma_offset = DART_U4_BYPASS_BASE;
set_iommu_table_base(&dev->dev, &iommu_table_dart);
}

diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index cb91a3d113d1..d6b7c91a9ce2 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -141,7 +141,7 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask)
*/
if (dev_is_pci(dev) && dma_mask >= pci64_dma_offset * 2 - 1) {
dev->bus_dma_mask = 0;
- set_dma_offset(dev, pci64_dma_offset);
+ dev->archdata.dma_offset = pci64_dma_offset;
}

return 0;
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c
index 49da2f744bbf..f0645ba1d728 100644
--- a/drivers/misc/cxl/vphb.c
+++ b/drivers/misc/cxl/vphb.c
@@ -44,7 +44,7 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev)
}

set_dma_ops(&dev->dev, &dma_nommu_ops);
- set_dma_offset(&dev->dev, PAGE_OFFSET);
+ dev->dev.archdata.dma_offset = PAGE_OFFSET;

/*
* Allocate a context to do cxl things too. If we eventually do real
--
2.19.0