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Groups > linux.kernel > #1419238 > unrolled thread
| Started by | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| First post | 2016-06-10 12:30 +0200 |
| Last post | 2016-06-10 12:30 +0200 |
| Articles | 10 — 2 participants |
Back to article view | Back to linux.kernel
[PATCH v4 00/44] dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 12:30 +0200
[PATCH v4 17/44] iommu: dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 12:30 +0200
[PATCH v4 18/44] [media] dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 12:30 +0200
Re: [PATCH v4 18/44] [media] dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 14:40 +0200
[PATCH v4 02/44] alpha: dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 12:30 +0200
[PATCH v4 16/44] infiniband: dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 12:30 +0200
[PATCH v4 20/44] swiotlb: dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 12:30 +0200
[PATCH v4 03/44] arc: dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 12:30 +0200
Re: [PATCH v4 03/44] arc: dma-mapping: Use unsigned long for dma_attrs Vineet Gupta <Vineet.Gupta1@synopsys.com> - 2016-06-10 13:00 +0200
[PATCH v4 22/44] video: dma-mapping: Use unsigned long for dma_attrs Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-10 12:30 +0200
| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 12:30 +0200 |
| Subject | [PATCH v4 00/44] dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIrHH-3il-3@gated-at.bofh.it> |
Hi,
This is fourth 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.
*Important:* Patchset is tested on my ARM platforms and *only* build
tested on allyesconfigs: ARM, ARM64, i386, x86_64 and powerpc.
Please kindly provide reviewes and tests for other platforms.
Rebased on next-20160607.
For easier testing the patchset is available here:
repo: https://github.com/krzk/linux
branch: for-next/dma-attrs-const-v4
Changes since v3
================
1. Collect some acks.
2. Drop wrong patch 1/45 ("powerpc: dma-mapping: Don't hard-code
the value of DMA_ATTR_WEAK_ORDERING").
3. Minor fix pointed out by Michael Ellerman.
Changes since v2
================
1. Follow Christoph Hellwig's comments (don't use BIT add
documentation, remove dma_get_attr).
Rationale
=========
The dma-mapping core and the implementations do not change the
DMA attributes passed by pointer. Thus the pointer can point to const
data. However the attributes do not have to be a bitfield. Instead
unsigned long will do fine:
1. This is just simpler. Both in terms of reading the code and setting
attributes. Instead of initializing local attributes on the stack
and passing pointer to it to dma_set_attr(), just set the bits.
2. It brings safeness and checking for const correctness because the
attributes are passed by value.
Best regards,
Krzysztof
Krzysztof Kozlowski (44):
dma-mapping: Use unsigned long for dma_attrs
alpha: dma-mapping: Use unsigned long for dma_attrs
arc: dma-mapping: Use unsigned long for dma_attrs
ARM: dma-mapping: Use unsigned long for dma_attrs
arm64: dma-mapping: Use unsigned long for dma_attrs
avr32: dma-mapping: Use unsigned long for dma_attrs
blackfin: dma-mapping: Use unsigned long for dma_attrs
c6x: dma-mapping: Use unsigned long for dma_attrs
cris: dma-mapping: Use unsigned long for dma_attrs
frv: dma-mapping: Use unsigned long for dma_attrs
drm/exynos: dma-mapping: Use unsigned long for dma_attrs
drm/mediatek: dma-mapping: Use unsigned long for dma_attrs
drm/msm: dma-mapping: Use unsigned long for dma_attrs
drm/nouveau: dma-mapping: Use unsigned long for dma_attrs
drm/rockship: dma-mapping: Use unsigned long for dma_attrs
infiniband: dma-mapping: Use unsigned long for dma_attrs
iommu: dma-mapping: Use unsigned long for dma_attrs
[media] dma-mapping: Use unsigned long for dma_attrs
xen: dma-mapping: Use unsigned long for dma_attrs
swiotlb: dma-mapping: Use unsigned long for dma_attrs
powerpc: dma-mapping: Use unsigned long for dma_attrs
video: dma-mapping: Use unsigned long for dma_attrs
x86: dma-mapping: Use unsigned long for dma_attrs
iommu: intel: dma-mapping: Use unsigned long for dma_attrs
h8300: dma-mapping: Use unsigned long for dma_attrs
hexagon: dma-mapping: Use unsigned long for dma_attrs
ia64: dma-mapping: Use unsigned long for dma_attrs
m68k: dma-mapping: Use unsigned long for dma_attrs
metag: dma-mapping: Use unsigned long for dma_attrs
microblaze: dma-mapping: Use unsigned long for dma_attrs
mips: dma-mapping: Use unsigned long for dma_attrs
mn10300: dma-mapping: Use unsigned long for dma_attrs
nios2: dma-mapping: Use unsigned long for dma_attrs
openrisc: dma-mapping: Use unsigned long for dma_attrs
parisc: dma-mapping: Use unsigned long for dma_attrs
misc: mic: dma-mapping: Use unsigned long for dma_attrs
s390: dma-mapping: Use unsigned long for dma_attrs
sh: dma-mapping: Use unsigned long for dma_attrs
sparc: dma-mapping: Use unsigned long for dma_attrs
tile: dma-mapping: Use unsigned long for dma_attrs
unicore32: dma-mapping: Use unsigned long for dma_attrs
xtensa: dma-mapping: Use unsigned long for dma_attrs
dma-mapping: Remove dma_get_attr
dma-mapping: Document the DMA attributes next to the declaration
Documentation/DMA-API.txt | 33 +++---
Documentation/DMA-attributes.txt | 2 +-
arch/alpha/include/asm/dma-mapping.h | 2 -
arch/alpha/kernel/pci-noop.c | 2 +-
arch/alpha/kernel/pci_iommu.c | 12 +-
arch/arc/mm/dma.c | 12 +-
arch/arm/common/dmabounce.c | 4 +-
arch/arm/include/asm/dma-mapping.h | 13 +--
arch/arm/include/asm/xen/page-coherent.h | 16 +--
arch/arm/mm/dma-mapping.c | 121 ++++++++++---------
arch/arm/xen/mm.c | 8 +-
arch/arm64/mm/dma-mapping.c | 67 +++++------
arch/avr32/mm/dma-coherent.c | 12 +-
arch/blackfin/kernel/dma-mapping.c | 8 +-
arch/c6x/include/asm/dma-mapping.h | 4 +-
arch/c6x/kernel/dma.c | 9 +-
arch/c6x/mm/dma-coherent.c | 4 +-
arch/cris/arch-v32/drivers/pci/dma.c | 9 +-
arch/frv/mb93090-mb00/pci-dma-nommu.c | 8 +-
arch/frv/mb93090-mb00/pci-dma.c | 9 +-
arch/h8300/kernel/dma.c | 8 +-
arch/hexagon/include/asm/dma-mapping.h | 1 -
arch/hexagon/kernel/dma.c | 8 +-
arch/ia64/hp/common/sba_iommu.c | 22 ++--
arch/ia64/include/asm/machvec.h | 1 -
arch/ia64/kernel/pci-swiotlb.c | 4 +-
arch/ia64/sn/pci/pci_dma.c | 22 ++--
arch/m68k/kernel/dma.c | 12 +-
arch/metag/kernel/dma.c | 16 +--
arch/microblaze/include/asm/dma-mapping.h | 1 -
arch/microblaze/kernel/dma.c | 12 +-
arch/mips/cavium-octeon/dma-octeon.c | 8 +-
arch/mips/loongson64/common/dma-swiotlb.c | 10 +-
arch/mips/mm/dma-default.c | 20 ++--
arch/mips/netlogic/common/nlm-dma.c | 4 +-
arch/mn10300/mm/dma-alloc.c | 8 +-
arch/nios2/mm/dma-mapping.c | 12 +-
arch/openrisc/kernel/dma.c | 21 ++--
arch/parisc/kernel/pci-dma.c | 18 +--
arch/powerpc/include/asm/dma-mapping.h | 7 +-
arch/powerpc/include/asm/iommu.h | 10 +-
arch/powerpc/kernel/dma-iommu.c | 12 +-
arch/powerpc/kernel/dma.c | 18 +--
arch/powerpc/kernel/ibmebus.c | 12 +-
arch/powerpc/kernel/iommu.c | 12 +-
arch/powerpc/kernel/vio.c | 12 +-
arch/powerpc/platforms/cell/iommu.c | 28 ++---
arch/powerpc/platforms/pasemi/iommu.c | 2 +-
arch/powerpc/platforms/powernv/npu-dma.c | 8 +-
arch/powerpc/platforms/powernv/pci-ioda.c | 4 +-
arch/powerpc/platforms/powernv/pci.c | 2 +-
arch/powerpc/platforms/powernv/pci.h | 2 +-
arch/powerpc/platforms/ps3/system-bus.c | 18 +--
arch/powerpc/platforms/pseries/iommu.c | 6 +-
arch/powerpc/sysdev/dart_iommu.c | 2 +-
arch/s390/include/asm/dma-mapping.h | 1 -
arch/s390/pci/pci_dma.c | 23 ++--
arch/sh/include/asm/dma-mapping.h | 4 +-
arch/sh/kernel/dma-nommu.c | 4 +-
arch/sh/mm/consistent.c | 4 +-
arch/sparc/kernel/iommu.c | 12 +-
arch/sparc/kernel/ioport.c | 24 ++--
arch/sparc/kernel/pci_sun4v.c | 12 +-
arch/tile/kernel/pci-dma.c | 28 ++---
arch/unicore32/mm/dma-swiotlb.c | 4 +-
arch/x86/include/asm/dma-mapping.h | 5 +-
arch/x86/include/asm/swiotlb.h | 4 +-
arch/x86/include/asm/xen/page-coherent.h | 9 +-
arch/x86/kernel/amd_gart_64.c | 20 ++--
arch/x86/kernel/pci-calgary_64.c | 14 +--
arch/x86/kernel/pci-dma.c | 4 +-
arch/x86/kernel/pci-nommu.c | 4 +-
arch/x86/kernel/pci-swiotlb.c | 4 +-
arch/x86/pci/sta2x11-fixup.c | 2 +-
arch/x86/pci/vmd.c | 16 +--
arch/xtensa/kernel/pci-dma.c | 12 +-
drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +-
drivers/gpu/drm/exynos/exynos_drm_g2d.c | 12 +-
drivers/gpu/drm/exynos/exynos_drm_gem.c | 20 ++--
drivers/gpu/drm/exynos/exynos_drm_gem.h | 2 +-
drivers/gpu/drm/mediatek/mtk_drm_gem.c | 13 +--
drivers/gpu/drm/mediatek/mtk_drm_gem.h | 2 +-
drivers/gpu/drm/msm/msm_drv.c | 13 +--
.../gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c | 13 +--
drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 17 ++-
drivers/gpu/drm/rockchip/rockchip_drm_gem.h | 2 +-
drivers/infiniband/core/umem.c | 7 +-
drivers/iommu/amd_iommu.c | 12 +-
drivers/iommu/dma-iommu.c | 8 +-
drivers/iommu/intel-iommu.c | 12 +-
drivers/media/platform/sti/bdisp/bdisp-hw.c | 26 ++---
drivers/media/v4l2-core/videobuf2-dma-contig.c | 30 ++---
drivers/media/v4l2-core/videobuf2-dma-sg.c | 19 +--
drivers/misc/mic/host/mic_boot.c | 20 ++--
drivers/parisc/ccio-dma.c | 16 +--
drivers/parisc/sba_iommu.c | 16 +--
drivers/video/fbdev/omap2/omapfb/omapfb-main.c | 12 +-
drivers/video/fbdev/omap2/omapfb/omapfb.h | 3 +-
drivers/xen/swiotlb-xen.c | 14 +--
include/linux/dma-attrs.h | 72 ------------
include/linux/dma-iommu.h | 6 +-
include/linux/dma-mapping.h | 128 ++++++++++++++-------
include/linux/swiotlb.h | 10 +-
include/media/videobuf2-dma-contig.h | 7 +-
include/rdma/ib_verbs.h | 8 +-
include/xen/swiotlb-xen.h | 12 +-
lib/dma-noop.c | 9 +-
lib/swiotlb.c | 13 ++-
108 files changed, 691 insertions(+), 793 deletions(-)
delete mode 100644 include/linux/dma-attrs.h
--
1.9.1
[toc] | [next] | [standalone]
| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 12:30 +0200 |
| Subject | [PATCH v4 17/44] iommu: dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIrRo-3lN-39@gated-at.bofh.it> |
| In reply to | #1419238 |
Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
drivers/iommu/amd_iommu.c | 12 ++++++------
drivers/iommu/dma-iommu.c | 6 +++---
include/linux/dma-iommu.h | 6 +++---
3 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 634f636393d5..afbb0de6a7f5 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2716,7 +2716,7 @@ static void __unmap_single(struct dma_ops_domain *dma_dom,
static dma_addr_t map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
phys_addr_t paddr = page_to_phys(page) + offset;
struct protection_domain *domain;
@@ -2738,7 +2738,7 @@ static dma_addr_t map_page(struct device *dev, struct page *page,
* The exported unmap_single function for dma_ops.
*/
static void unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size,
- enum dma_data_direction dir, struct dma_attrs *attrs)
+ enum dma_data_direction dir, unsigned long attrs)
{
struct protection_domain *domain;
@@ -2755,7 +2755,7 @@ static void unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size,
*/
static int map_sg(struct device *dev, struct scatterlist *sglist,
int nelems, enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct protection_domain *domain;
int i;
@@ -2803,7 +2803,7 @@ unmap:
*/
static void unmap_sg(struct device *dev, struct scatterlist *sglist,
int nelems, enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct protection_domain *domain;
struct scatterlist *s;
@@ -2825,7 +2825,7 @@ static void unmap_sg(struct device *dev, struct scatterlist *sglist,
*/
static void *alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t flag,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
u64 dma_mask = dev->coherent_dma_mask;
struct protection_domain *domain;
@@ -2879,7 +2879,7 @@ out_free:
*/
static void free_coherent(struct device *dev, size_t size,
void *virt_addr, dma_addr_t dma_addr,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct protection_domain *domain;
struct page *page;
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index ea5a9ebf0f78..6c1bda504fb1 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -286,7 +286,7 @@ void iommu_dma_free(struct device *dev, struct page **pages, size_t size,
* or NULL on failure.
*/
struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
- struct dma_attrs *attrs, int prot, dma_addr_t *handle,
+ unsigned long attrs, int prot, dma_addr_t *handle,
void (*flush_page)(struct device *, const void *, phys_addr_t))
{
struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
@@ -400,7 +400,7 @@ dma_addr_t iommu_dma_map_page(struct device *dev, struct page *page,
}
void iommu_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
- enum dma_data_direction dir, struct dma_attrs *attrs)
+ enum dma_data_direction dir, unsigned long attrs)
{
__iommu_dma_unmap(iommu_get_domain_for_dev(dev), handle);
}
@@ -560,7 +560,7 @@ out_restore_sg:
}
void iommu_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction dir, struct dma_attrs *attrs)
+ enum dma_data_direction dir, unsigned long attrs)
{
/*
* The scatterlist segments are mapped into a single
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
index 8443bbb5c071..81c5c8d167ad 100644
--- a/include/linux/dma-iommu.h
+++ b/include/linux/dma-iommu.h
@@ -39,7 +39,7 @@ int dma_direction_to_prot(enum dma_data_direction dir, bool coherent);
* the arch code to take care of attributes and cache maintenance
*/
struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
- struct dma_attrs *attrs, int prot, dma_addr_t *handle,
+ unsigned long attrs, int prot, dma_addr_t *handle,
void (*flush_page)(struct device *, const void *, phys_addr_t));
void iommu_dma_free(struct device *dev, struct page **pages, size_t size,
dma_addr_t *handle);
@@ -56,9 +56,9 @@ int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
* directly as DMA mapping callbacks for simplicity
*/
void iommu_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
- enum dma_data_direction dir, struct dma_attrs *attrs);
+ enum dma_data_direction dir, unsigned long attrs);
void iommu_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction dir, struct dma_attrs *attrs);
+ enum dma_data_direction dir, unsigned long attrs);
int iommu_dma_supported(struct device *dev, u64 mask);
int iommu_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
--
1.9.1
[toc] | [prev] | [next] | [standalone]
| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 12:30 +0200 |
| Subject | [PATCH v4 18/44] [media] dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIrRo-3lN-29@gated-at.bofh.it> |
| In reply to | #1419238 |
Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
drivers/media/platform/sti/bdisp/bdisp-hw.c | 26 +++++++---------------
drivers/media/v4l2-core/videobuf2-dma-contig.c | 30 +++++++++++---------------
drivers/media/v4l2-core/videobuf2-dma-sg.c | 19 ++++------------
include/media/videobuf2-dma-contig.h | 7 ++----
4 files changed, 26 insertions(+), 56 deletions(-)
diff --git a/drivers/media/platform/sti/bdisp/bdisp-hw.c b/drivers/media/platform/sti/bdisp/bdisp-hw.c
index 052c932ac942..d86ba40eec8d 100644
--- a/drivers/media/platform/sti/bdisp/bdisp-hw.c
+++ b/drivers/media/platform/sti/bdisp/bdisp-hw.c
@@ -125,14 +125,11 @@ int bdisp_hw_get_and_clear_irq(struct bdisp_dev *bdisp)
*/
void bdisp_hw_free_nodes(struct bdisp_ctx *ctx)
{
- if (ctx && ctx->node[0]) {
- DEFINE_DMA_ATTRS(attrs);
-
- dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
+ if (ctx && ctx->node[0])
dma_free_attrs(ctx->bdisp_dev->dev,
sizeof(struct bdisp_node) * MAX_NB_NODE,
- ctx->node[0], ctx->node_paddr[0], &attrs);
- }
+ ctx->node[0], ctx->node_paddr[0],
+ DMA_ATTR_WRITE_COMBINE);
}
/**
@@ -150,12 +147,10 @@ int bdisp_hw_alloc_nodes(struct bdisp_ctx *ctx)
unsigned int i, node_size = sizeof(struct bdisp_node);
void *base;
dma_addr_t paddr;
- DEFINE_DMA_ATTRS(attrs);
/* Allocate all the nodes within a single memory page */
- dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
base = dma_alloc_attrs(dev, node_size * MAX_NB_NODE, &paddr,
- GFP_KERNEL | GFP_DMA, &attrs);
+ GFP_KERNEL | GFP_DMA, DMA_ATTR_WRITE_COMBINE);
if (!base) {
dev_err(dev, "%s no mem\n", __func__);
return -ENOMEM;
@@ -188,13 +183,9 @@ void bdisp_hw_free_filters(struct device *dev)
{
int size = (BDISP_HF_NB * NB_H_FILTER) + (BDISP_VF_NB * NB_V_FILTER);
- if (bdisp_h_filter[0].virt) {
- DEFINE_DMA_ATTRS(attrs);
-
- dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
+ if (bdisp_h_filter[0].virt)
dma_free_attrs(dev, size, bdisp_h_filter[0].virt,
- bdisp_h_filter[0].paddr, &attrs);
- }
+ bdisp_h_filter[0].paddr, DMA_ATTR_WRITE_COMBINE);
}
/**
@@ -211,12 +202,11 @@ int bdisp_hw_alloc_filters(struct device *dev)
unsigned int i, size;
void *base;
dma_addr_t paddr;
- DEFINE_DMA_ATTRS(attrs);
/* Allocate all the filters within a single memory page */
size = (BDISP_HF_NB * NB_H_FILTER) + (BDISP_VF_NB * NB_V_FILTER);
- dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
- base = dma_alloc_attrs(dev, size, &paddr, GFP_KERNEL | GFP_DMA, &attrs);
+ base = dma_alloc_attrs(dev, size, &paddr, GFP_KERNEL | GFP_DMA,
+ DMA_ATTR_WRITE_COMBINE);
if (!base)
return -ENOMEM;
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index e3e47ace7daf..36cb488dc737 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -23,7 +23,7 @@
struct vb2_dc_conf {
struct device *dev;
- struct dma_attrs attrs;
+ unsigned long attrs;
};
struct vb2_dc_buf {
@@ -32,7 +32,7 @@ struct vb2_dc_buf {
unsigned long size;
void *cookie;
dma_addr_t dma_addr;
- struct dma_attrs attrs;
+ unsigned long attrs;
enum dma_data_direction dma_dir;
struct sg_table *dma_sgt;
struct frame_vector *vec;
@@ -135,7 +135,7 @@ static void vb2_dc_put(void *buf_priv)
kfree(buf->sgt_base);
}
dma_free_attrs(buf->dev, buf->size, buf->cookie, buf->dma_addr,
- &buf->attrs);
+ buf->attrs);
put_device(buf->dev);
kfree(buf);
}
@@ -153,14 +153,14 @@ static void *vb2_dc_alloc(void *alloc_ctx, unsigned long size,
buf->attrs = conf->attrs;
buf->cookie = dma_alloc_attrs(dev, size, &buf->dma_addr,
- GFP_KERNEL | gfp_flags, &buf->attrs);
+ GFP_KERNEL | gfp_flags, buf->attrs);
if (!buf->cookie) {
dev_err(dev, "dma_alloc_coherent of size %ld failed\n", size);
kfree(buf);
return ERR_PTR(-ENOMEM);
}
- if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, &buf->attrs))
+ if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, buf->attrs))
buf->vaddr = buf->cookie;
/* Prevent the device from being released while the buffer is used */
@@ -194,7 +194,7 @@ static int vb2_dc_mmap(void *buf_priv, struct vm_area_struct *vma)
vma->vm_pgoff = 0;
ret = dma_mmap_attrs(buf->dev, vma, buf->cookie,
- buf->dma_addr, buf->size, &buf->attrs);
+ buf->dma_addr, buf->size, buf->attrs);
if (ret) {
pr_err("Remapping memory failed, error: %d\n", ret);
@@ -377,7 +377,7 @@ static struct sg_table *vb2_dc_get_base_sgt(struct vb2_dc_buf *buf)
}
ret = dma_get_sgtable_attrs(buf->dev, sgt, buf->cookie, buf->dma_addr,
- buf->size, &buf->attrs);
+ buf->size, buf->attrs);
if (ret < 0) {
dev_err(buf->dev, "failed to get scatterlist from DMA API\n");
kfree(sgt);
@@ -426,15 +426,12 @@ static void vb2_dc_put_userptr(void *buf_priv)
struct page **pages;
if (sgt) {
- DEFINE_DMA_ATTRS(attrs);
-
- dma_set_attr(DMA_ATTR_SKIP_CPU_SYNC, &attrs);
/*
* No need to sync to CPU, it's already synced to the CPU
* since the finish() memop will have been called before this.
*/
dma_unmap_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
- buf->dma_dir, &attrs);
+ buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
pages = frame_vector_pages(buf->vec);
/* sgt should exist only if vector contains pages... */
BUG_ON(IS_ERR(pages));
@@ -490,9 +487,6 @@ static void *vb2_dc_get_userptr(void *alloc_ctx, unsigned long vaddr,
struct sg_table *sgt;
unsigned long contig_size;
unsigned long dma_align = dma_get_cache_alignment();
- DEFINE_DMA_ATTRS(attrs);
-
- dma_set_attr(DMA_ATTR_SKIP_CPU_SYNC, &attrs);
/* Only cache aligned DMA transfers are reliable */
if (!IS_ALIGNED(vaddr | size, dma_align)) {
@@ -554,7 +548,7 @@ static void *vb2_dc_get_userptr(void *alloc_ctx, unsigned long vaddr,
* prepare() memop is called.
*/
sgt->nents = dma_map_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
- buf->dma_dir, &attrs);
+ buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
if (sgt->nents <= 0) {
pr_err("failed to map scatterlist\n");
ret = -EIO;
@@ -578,7 +572,7 @@ out:
fail_map_sg:
dma_unmap_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
- buf->dma_dir, &attrs);
+ buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
fail_sgt_init:
sg_free_table(sgt);
@@ -730,7 +724,7 @@ const struct vb2_mem_ops vb2_dma_contig_memops = {
EXPORT_SYMBOL_GPL(vb2_dma_contig_memops);
void *vb2_dma_contig_init_ctx_attrs(struct device *dev,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct vb2_dc_conf *conf;
@@ -740,7 +734,7 @@ void *vb2_dma_contig_init_ctx_attrs(struct device *dev,
conf->dev = dev;
if (attrs)
- conf->attrs = *attrs;
+ conf->attrs = attrs;
return conf;
}
diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c
index 9985c89f0513..94f24e610fe7 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c
@@ -107,9 +107,6 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size,
struct sg_table *sgt;
int ret;
int num_pages;
- DEFINE_DMA_ATTRS(attrs);
-
- dma_set_attr(DMA_ATTR_SKIP_CPU_SYNC, &attrs);
if (WARN_ON(alloc_ctx == NULL))
return NULL;
@@ -148,7 +145,7 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size,
* prepare() memop is called.
*/
sgt->nents = dma_map_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
- buf->dma_dir, &attrs);
+ buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
if (!sgt->nents)
goto fail_map;
@@ -183,13 +180,10 @@ static void vb2_dma_sg_put(void *buf_priv)
int i = buf->num_pages;
if (atomic_dec_and_test(&buf->refcount)) {
- DEFINE_DMA_ATTRS(attrs);
-
- dma_set_attr(DMA_ATTR_SKIP_CPU_SYNC, &attrs);
dprintk(1, "%s: Freeing buffer of %d pages\n", __func__,
buf->num_pages);
dma_unmap_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
- buf->dma_dir, &attrs);
+ buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
if (buf->vaddr)
vm_unmap_ram(buf->vaddr, buf->num_pages);
sg_free_table(buf->dma_sgt);
@@ -233,10 +227,8 @@ static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr,
struct vb2_dma_sg_conf *conf = alloc_ctx;
struct vb2_dma_sg_buf *buf;
struct sg_table *sgt;
- DEFINE_DMA_ATTRS(attrs);
struct frame_vector *vec;
- dma_set_attr(DMA_ATTR_SKIP_CPU_SYNC, &attrs);
buf = kzalloc(sizeof *buf, GFP_KERNEL);
if (!buf)
return NULL;
@@ -267,7 +259,7 @@ static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr,
* prepare() memop is called.
*/
sgt->nents = dma_map_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents,
- buf->dma_dir, &attrs);
+ buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
if (!sgt->nents)
goto userptr_fail_map;
@@ -291,14 +283,11 @@ static void vb2_dma_sg_put_userptr(void *buf_priv)
struct vb2_dma_sg_buf *buf = buf_priv;
struct sg_table *sgt = &buf->sg_table;
int i = buf->num_pages;
- DEFINE_DMA_ATTRS(attrs);
-
- dma_set_attr(DMA_ATTR_SKIP_CPU_SYNC, &attrs);
dprintk(1, "%s: Releasing userspace buffer of %d pages\n",
__func__, buf->num_pages);
dma_unmap_sg_attrs(buf->dev, sgt->sgl, sgt->orig_nents, buf->dma_dir,
- &attrs);
+ DMA_ATTR_SKIP_CPU_SYNC);
if (buf->vaddr)
vm_unmap_ram(buf->vaddr, buf->num_pages);
sg_free_table(buf->dma_sgt);
diff --git a/include/media/videobuf2-dma-contig.h b/include/media/videobuf2-dma-contig.h
index f7dc8401817e..2de5b64660e8 100644
--- a/include/media/videobuf2-dma-contig.h
+++ b/include/media/videobuf2-dma-contig.h
@@ -16,8 +16,6 @@
#include <media/videobuf2-v4l2.h>
#include <linux/dma-mapping.h>
-struct dma_attrs;
-
static inline dma_addr_t
vb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no)
{
@@ -26,12 +24,11 @@ vb2_dma_contig_plane_dma_addr(struct vb2_buffer *vb, unsigned int plane_no)
return *addr;
}
-void *vb2_dma_contig_init_ctx_attrs(struct device *dev,
- struct dma_attrs *attrs);
+void *vb2_dma_contig_init_ctx_attrs(struct device *dev, unsigned long attrs);
static inline void *vb2_dma_contig_init_ctx(struct device *dev)
{
- return vb2_dma_contig_init_ctx_attrs(dev, NULL);
+ return vb2_dma_contig_init_ctx_attrs(dev, 0);
}
void vb2_dma_contig_cleanup_ctx(void *alloc_ctx);
--
1.9.1
[toc] | [prev] | [next] | [standalone]
| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 14:40 +0200 |
| Subject | Re: [PATCH v4 18/44] [media] dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rItTb-4zv-11@gated-at.bofh.it> |
| In reply to | #1419240 |
On 06/10/2016 02:28 PM, Fabien DESSENNE wrote: > Hi > > On 06/10/2016 12:11 PM, Krzysztof Kozlowski wrote: >> Split out subsystem specific changes for easier reviews. This will be >> squashed with main commit. >> >> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> >> --- >> drivers/media/platform/sti/bdisp/bdisp-hw.c | 26 +++++++--------------- > > For bdisp: Acked-by: Fabien Dessenne <fabien.dessenne@st.com> > > > The other part deals with v4l2-core, I let Mauro (ot other) review/ack > it. I also think it would be better to split this patch in two patches In case Mauro misses this patch, I will split it on next iteration. Thanks, Krzysztof > (bdisp / v4l2-core) >> drivers/media/v4l2-core/videobuf2-dma-contig.c | 30 +++++++++++--------------- >> drivers/media/v4l2-core/videobuf2-dma-sg.c | 19 ++++------------ >> include/media/videobuf2-dma-contig.h | 7 ++---- >> 4 files changed, 26 insertions(+), 56 deletions(-)
[toc] | [prev] | [next] | [standalone]
| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 12:30 +0200 |
| Subject | [PATCH v4 02/44] alpha: dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIrRo-3lN-33@gated-at.bofh.it> |
| In reply to | #1419238 |
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/alpha/include/asm/dma-mapping.h | 2 --
arch/alpha/kernel/pci-noop.c | 2 +-
arch/alpha/kernel/pci_iommu.c | 12 ++++++------
3 files changed, 7 insertions(+), 9 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index 3c3451f58ff4..c63b6ac19ee5 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -1,8 +1,6 @@
#ifndef _ALPHA_DMA_MAPPING_H
#define _ALPHA_DMA_MAPPING_H
-#include <linux/dma-attrs.h>
-
extern struct dma_map_ops *dma_ops;
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index 8e735b5e56bd..bb152e21e5ae 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -109,7 +109,7 @@ sys_pciconfig_write(unsigned long bus, unsigned long dfn,
static void *alpha_noop_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
void *ret;
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 8969bf2dfe3a..451fc9cdd323 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -349,7 +349,7 @@ static struct pci_dev *alpha_gendev_to_pci(struct device *dev)
static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct pci_dev *pdev = alpha_gendev_to_pci(dev);
int dac_allowed;
@@ -369,7 +369,7 @@ static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page,
static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
unsigned long flags;
struct pci_dev *pdev = alpha_gendev_to_pci(dev);
@@ -433,7 +433,7 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr,
static void *alpha_pci_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addrp, gfp_t gfp,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct pci_dev *pdev = alpha_gendev_to_pci(dev);
void *cpu_addr;
@@ -478,7 +478,7 @@ try_again:
static void alpha_pci_free_coherent(struct device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_addr,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct pci_dev *pdev = alpha_gendev_to_pci(dev);
pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL);
@@ -651,7 +651,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end,
static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct pci_dev *pdev = alpha_gendev_to_pci(dev);
struct scatterlist *start, *end, *out;
@@ -729,7 +729,7 @@ static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg,
static void alpha_pci_unmap_sg(struct device *dev, struct scatterlist *sg,
int nents, enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
struct pci_dev *pdev = alpha_gendev_to_pci(dev);
unsigned long flags;
--
1.9.1
[toc] | [prev] | [next] | [standalone]
| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 12:30 +0200 |
| Subject | [PATCH v4 16/44] infiniband: dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIrRp-3lN-45@gated-at.bofh.it> |
| In reply to | #1419238 |
Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
drivers/infiniband/core/umem.c | 7 +++----
include/rdma/ib_verbs.h | 8 ++++----
2 files changed, 7 insertions(+), 8 deletions(-)
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index fe4d2e1a8b58..75d8a8b178a5 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -37,7 +37,6 @@
#include <linux/sched.h>
#include <linux/export.h>
#include <linux/hugetlb.h>
-#include <linux/dma-attrs.h>
#include <linux/slab.h>
#include <rdma/ib_umem_odp.h>
@@ -92,12 +91,12 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
unsigned long npages;
int ret;
int i;
- DEFINE_DMA_ATTRS(attrs);
+ unsigned long attrs = 0;
struct scatterlist *sg, *sg_list_start;
int need_release = 0;
if (dmasync)
- dma_set_attr(DMA_ATTR_WRITE_BARRIER, &attrs);
+ attrs |= DMA_ATTR_WRITE_BARRIER;
if (!size)
return ERR_PTR(-EINVAL);
@@ -215,7 +214,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
umem->sg_head.sgl,
umem->npages,
DMA_BIDIRECTIONAL,
- &attrs);
+ attrs);
if (umem->nmap <= 0) {
ret = -ENOMEM;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 7d7cf4541263..0493a0cd0520 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -2893,7 +2893,7 @@ static inline void ib_dma_unmap_single(struct ib_device *dev,
static inline u64 ib_dma_map_single_attrs(struct ib_device *dev,
void *cpu_addr, size_t size,
enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
return dma_map_single_attrs(dev->dma_device, cpu_addr, size,
direction, attrs);
@@ -2902,7 +2902,7 @@ static inline u64 ib_dma_map_single_attrs(struct ib_device *dev,
static inline void ib_dma_unmap_single_attrs(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
return dma_unmap_single_attrs(dev->dma_device, addr, size,
direction, attrs);
@@ -2980,7 +2980,7 @@ static inline void ib_dma_unmap_sg(struct ib_device *dev,
static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, attrs);
}
@@ -2988,7 +2988,7 @@ static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, attrs);
}
--
1.9.1
[toc] | [prev] | [next] | [standalone]
| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 12:30 +0200 |
| Subject | [PATCH v4 20/44] swiotlb: dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIrRp-3lN-43@gated-at.bofh.it> |
| In reply to | #1419238 |
Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
include/linux/swiotlb.h | 10 +++++-----
lib/swiotlb.c | 13 +++++++------
2 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 017fced60242..5f81f8a187f2 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -6,7 +6,6 @@
#include <linux/types.h>
struct device;
-struct dma_attrs;
struct page;
struct scatterlist;
@@ -68,10 +67,10 @@ swiotlb_free_coherent(struct device *hwdev, size_t size,
extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction dir,
- struct dma_attrs *attrs);
+ unsigned long attrs);
extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
size_t size, enum dma_data_direction dir,
- struct dma_attrs *attrs);
+ unsigned long attrs);
extern int
swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
@@ -83,12 +82,13 @@ swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
extern int
swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
- enum dma_data_direction dir, struct dma_attrs *attrs);
+ enum dma_data_direction dir,
+ unsigned long attrs);
extern void
swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
int nelems, enum dma_data_direction dir,
- struct dma_attrs *attrs);
+ unsigned long attrs);
extern void
swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr,
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 76f29ecba8f4..22e13a0e19d7 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -738,7 +738,7 @@ swiotlb_full(struct device *dev, size_t size, enum dma_data_direction dir,
dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
phys_addr_t map, phys = page_to_phys(page) + offset;
dma_addr_t dev_addr = phys_to_dma(dev, phys);
@@ -807,7 +807,7 @@ static void unmap_single(struct device *hwdev, dma_addr_t dev_addr,
void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
size_t size, enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
unmap_single(hwdev, dev_addr, size, dir);
}
@@ -877,7 +877,7 @@ EXPORT_SYMBOL(swiotlb_sync_single_for_device);
*/
int
swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
- enum dma_data_direction dir, struct dma_attrs *attrs)
+ enum dma_data_direction dir, unsigned long attrs)
{
struct scatterlist *sg;
int i;
@@ -914,7 +914,7 @@ int
swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
enum dma_data_direction dir)
{
- return swiotlb_map_sg_attrs(hwdev, sgl, nelems, dir, NULL);
+ return swiotlb_map_sg_attrs(hwdev, sgl, nelems, dir, 0);
}
EXPORT_SYMBOL(swiotlb_map_sg);
@@ -924,7 +924,8 @@ EXPORT_SYMBOL(swiotlb_map_sg);
*/
void
swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
- int nelems, enum dma_data_direction dir, struct dma_attrs *attrs)
+ int nelems, enum dma_data_direction dir,
+ unsigned long attrs)
{
struct scatterlist *sg;
int i;
@@ -941,7 +942,7 @@ void
swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems,
enum dma_data_direction dir)
{
- return swiotlb_unmap_sg_attrs(hwdev, sgl, nelems, dir, NULL);
+ return swiotlb_unmap_sg_attrs(hwdev, sgl, nelems, dir, 0);
}
EXPORT_SYMBOL(swiotlb_unmap_sg);
--
1.9.1
[toc] | [prev] | [next] | [standalone]
| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 12:30 +0200 |
| Subject | [PATCH v4 03/44] arc: dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIrRp-3lN-49@gated-at.bofh.it> |
| In reply to | #1419238 |
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/arc/mm/dma.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 73d7e4c75b7d..3d1f467d1792 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -22,7 +22,7 @@
static void *arc_dma_alloc(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs)
+ dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
{
unsigned long order = get_order(size);
struct page *page;
@@ -90,7 +90,7 @@ static void *arc_dma_alloc(struct device *dev, size_t size,
}
static void arc_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)
{
struct page *page = virt_to_page(dma_handle);
int is_non_coh = 1;
@@ -129,7 +129,7 @@ static void _dma_cache_sync(phys_addr_t paddr, size_t size,
static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir,
- struct dma_attrs *attrs)
+ unsigned long attrs)
{
phys_addr_t paddr = page_to_phys(page) + offset;
_dma_cache_sync(paddr, size, dir);
@@ -137,7 +137,7 @@ static dma_addr_t arc_dma_map_page(struct device *dev, struct page *page,
}
static int arc_dma_map_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction dir, struct dma_attrs *attrs)
+ int nents, enum dma_data_direction dir, unsigned long attrs)
{
struct scatterlist *s;
int i;
--
1.9.1
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| From | Vineet Gupta <Vineet.Gupta1@synopsys.com> |
|---|---|
| Date | 2016-06-10 13:00 +0200 |
| Subject | Re: [PATCH v4 03/44] arc: dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIskq-3wi-25@gated-at.bofh.it> |
| In reply to | #1419245 |
On Friday 10 June 2016 03:41 PM, Krzysztof Kozlowski wrote: > Split out subsystem specific changes for easier reviews. This will be > squashed with main commit. > > Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Vineet Gupta <vgupta@synopsys.com>
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| From | Krzysztof Kozlowski <k.kozlowski@samsung.com> |
|---|---|
| Date | 2016-06-10 12:30 +0200 |
| Subject | [PATCH v4 22/44] video: dma-mapping: Use unsigned long for dma_attrs |
| Message-ID | <rIrRp-3lN-47@gated-at.bofh.it> |
| In reply to | #1419238 |
Split out subsystem specific changes for easier reviews. This will be
squashed with main commit.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
drivers/video/fbdev/omap2/omapfb/omapfb-main.c | 12 ++++++------
drivers/video/fbdev/omap2/omapfb/omapfb.h | 3 +--
2 files changed, 7 insertions(+), 8 deletions(-)
diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
index d3af01c94a58..59172a2185c0 100644
--- a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
@@ -1332,7 +1332,7 @@ static void omapfb_free_fbmem(struct fb_info *fbi)
}
dma_free_attrs(fbdev->dev, rg->size, rg->token, rg->dma_handle,
- &rg->attrs);
+ rg->attrs);
rg->token = NULL;
rg->vaddr = NULL;
@@ -1370,7 +1370,7 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
struct omapfb2_device *fbdev = ofbi->fbdev;
struct omapfb2_mem_region *rg;
void *token;
- DEFINE_DMA_ATTRS(attrs);
+ unsigned long attrs;
dma_addr_t dma_handle;
int r;
@@ -1386,15 +1386,15 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
size = PAGE_ALIGN(size);
- dma_set_attr(DMA_ATTR_WRITE_COMBINE, &attrs);
+ attrs = DMA_ATTR_WRITE_COMBINE;
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
- dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &attrs);
+ attrs |= DMA_ATTR_NO_KERNEL_MAPPING;
DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
token = dma_alloc_attrs(fbdev->dev, size, &dma_handle,
- GFP_KERNEL, &attrs);
+ GFP_KERNEL, attrs);
if (token == NULL) {
dev_err(fbdev->dev, "failed to allocate framebuffer\n");
@@ -1408,7 +1408,7 @@ static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
r = omap_vrfb_request_ctx(&rg->vrfb);
if (r) {
dma_free_attrs(fbdev->dev, size, token, dma_handle,
- &attrs);
+ attrs);
dev_err(fbdev->dev, "vrfb create ctx failed\n");
return r;
}
diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb.h b/drivers/video/fbdev/omap2/omapfb/omapfb.h
index 623cd872a367..8aaa2f643820 100644
--- a/drivers/video/fbdev/omap2/omapfb/omapfb.h
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb.h
@@ -28,7 +28,6 @@
#endif
#include <linux/rwsem.h>
-#include <linux/dma-attrs.h>
#include <linux/dma-mapping.h>
#include <video/omapdss.h>
@@ -51,7 +50,7 @@ extern bool omapfb_debug;
struct omapfb2_mem_region {
int id;
- struct dma_attrs attrs;
+ unsigned long attrs;
void *token;
dma_addr_t dma_handle;
u32 paddr;
--
1.9.1
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