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gpu: nvgpu: Clean up dma_attrs handling code

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The dma_attr type is changed from "struct" to "unsigned long"
after kernel 4.4 Remove all such dma_attrs handling instances.

Bug 2485656

Change-Id: I07052df763d9d77b0be824a9303da2240d17c701
Signed-off-by: Ketan Patil <ketanp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2002701
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Ketan Patil
2019-01-24 14:05:26 +05:30
committed by mobile promotions
parent ba9bbacdfd
commit 4af6d70713
2 changed files with 12 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
drivers/gpu/nvgpu/os/linux/linux-dma.c
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@@ -33,17 +33,6 @@
#include "os_linux.h"
#include "dmabuf_vidmem.h"
#ifdef __DMA_ATTRS_LONGS
#define NVGPU_DEFINE_DMA_ATTRS(x) \
struct dma_attrs x = { \
.flags = { [0 ... __DMA_ATTRS_LONGS-1] = 0 }, \
}
#define NVGPU_DMA_ATTR(attrs) &attrs
#else
#define NVGPU_DEFINE_DMA_ATTRS(attrs) unsigned long attrs = 0
#define NVGPU_DMA_ATTR(attrs) attrs
#endif
/*
* Enough to hold all the possible flags in string form. When a new flag is
* added it must be added here as well!!
@@ -157,21 +146,13 @@ static u64 __nvgpu_dma_alloc(struct nvgpu_allocator *allocator, u64 at,
}
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
static void nvgpu_dma_flags_to_attrs(unsigned long *attrs,
unsigned long flags)
#define ATTR_ARG(x) *x
#else
static void nvgpu_dma_flags_to_attrs(struct dma_attrs *attrs,
unsigned long flags)
#define ATTR_ARG(x) x
#endif
{
if (flags & NVGPU_DMA_NO_KERNEL_MAPPING)
dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, ATTR_ARG(attrs));
*attrs |= DMA_ATTR_NO_KERNEL_MAPPING;
if (flags & NVGPU_DMA_FORCE_CONTIGUOUS)
dma_set_attr(DMA_ATTR_FORCE_CONTIGUOUS, ATTR_ARG(attrs));
#undef ATTR_ARG
*attrs |= DMA_ATTR_FORCE_CONTIGUOUS;
}
int nvgpu_dma_alloc_flags_sys(struct gk20a *g, unsigned long flags,
@@ -180,7 +161,7 @@ int nvgpu_dma_alloc_flags_sys(struct gk20a *g, unsigned long flags,
struct device *d = dev_from_gk20a(g);
int err;
dma_addr_t iova;
NVGPU_DEFINE_DMA_ATTRS(dma_attrs);
unsigned long dma_attrs = 0;
void *alloc_ret;
if (nvgpu_mem_is_valid(mem)) {
@@ -212,8 +193,7 @@ int nvgpu_dma_alloc_flags_sys(struct gk20a *g, unsigned long flags,
nvgpu_dma_flags_to_attrs(&dma_attrs, flags);
alloc_ret = dma_alloc_attrs(d, size, &iova,
GFP_KERNEL|__GFP_ZERO,
NVGPU_DMA_ATTR(dma_attrs));
GFP_KERNEL|__GFP_ZERO, dma_attrs);
if (!alloc_ret)
return -ENOMEM;
@@ -239,7 +219,7 @@ int nvgpu_dma_alloc_flags_sys(struct gk20a *g, unsigned long flags,
return 0;
fail_free_dma:
dma_free_attrs(d, size, alloc_ret, iova, NVGPU_DMA_ATTR(dma_attrs));
dma_free_attrs(d, size, alloc_ret, iova, dma_attrs);
mem->cpu_va = NULL;
mem->priv.sgt = NULL;
mem->size = 0;
@@ -334,6 +314,7 @@ fail_physfree:
void nvgpu_dma_free_sys(struct gk20a *g, struct nvgpu_mem *mem)
{
struct device *d = dev_from_gk20a(g);
unsigned long dma_attrs = 0;
g->dma_memory_used -= mem->aligned_size;
@@ -343,18 +324,17 @@ void nvgpu_dma_free_sys(struct gk20a *g, struct nvgpu_mem *mem)
!(mem->mem_flags & __NVGPU_MEM_FLAG_NO_DMA) &&
(mem->cpu_va || mem->priv.pages)) {
if (mem->priv.flags) {
NVGPU_DEFINE_DMA_ATTRS(dma_attrs);
nvgpu_dma_flags_to_attrs(&dma_attrs, mem->priv.flags);
if (mem->priv.flags & NVGPU_DMA_NO_KERNEL_MAPPING) {
dma_free_attrs(d, mem->aligned_size, mem->priv.pages,
sg_dma_address(mem->priv.sgt->sgl),
NVGPU_DMA_ATTR(dma_attrs));
dma_attrs);
} else {
dma_free_attrs(d, mem->aligned_size, mem->cpu_va,
sg_dma_address(mem->priv.sgt->sgl),
NVGPU_DMA_ATTR(dma_attrs));
dma_attrs);
}
} else {
dma_free_coherent(d, mem->aligned_size, mem->cpu_va,
@@ -427,7 +407,7 @@ int nvgpu_get_sgtable_attrs(struct gk20a *g, struct sg_table **sgt,
{
int err = 0;
struct sg_table *tbl;
NVGPU_DEFINE_DMA_ATTRS(dma_attrs);
unsigned long dma_attrs = 0;
tbl = nvgpu_kzalloc(g, sizeof(struct sg_table));
if (!tbl) {
@@ -437,7 +417,7 @@ int nvgpu_get_sgtable_attrs(struct gk20a *g, struct sg_table **sgt,
nvgpu_dma_flags_to_attrs(&dma_attrs, flags);
err = dma_get_sgtable_attrs(dev_from_gk20a(g), tbl, cpuva, iova,
size, NVGPU_DMA_ATTR(dma_attrs));
size, dma_attrs);
if (err)
goto fail;