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Revert "gpu: nvgpu: fix patch buf count update for vidmem"

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This reverts commit de399ccb00.

Bug 2012077

Change-Id: Ie608c3b41aa91f9aaed3fad240ed882a0c6f1ea2
Signed-off-by: Timo Alho <talho@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1591423
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Timo Alho
2017-11-03 05:29:12 -07:00
committed by Jani Uusi-Rantala
parent de399ccb00
commit fe1e09d473
3 changed files with 8 additions and 25 deletions
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19
drivers/gpu/nvgpu/common/linux/nvgpu_mem.c
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@@ -60,14 +60,6 @@ int nvgpu_mem_begin(struct gk20a *g, struct nvgpu_mem *mem)
{
void *cpu_va;
if (WARN_ON(mem->cpu_accessible)) {
nvgpu_warn(g, "nested");
return -EBUSY;
}
/* flag that the intent is to allow CPU access to the memory. */
mem->cpu_accessible = true;
if (mem->aperture != APERTURE_SYSMEM || g->mm.force_pramin)
return 0;
@@ -79,14 +71,17 @@ int nvgpu_mem_begin(struct gk20a *g, struct nvgpu_mem *mem)
if (!(mem->priv.flags & NVGPU_DMA_NO_KERNEL_MAPPING))
return 0;
if (WARN_ON(mem->cpu_va)) {
nvgpu_warn(g, "nested");
return -EBUSY;
}
cpu_va = vmap(mem->priv.pages,
PAGE_ALIGN(mem->size) >> PAGE_SHIFT,
0, pgprot_writecombine(PAGE_KERNEL));
if (WARN_ON(!cpu_va)) {
mem->cpu_accessible = false;
if (WARN_ON(!cpu_va))
return -ENOMEM;
}
mem->cpu_va = cpu_va;
return 0;
@@ -94,8 +89,6 @@ int nvgpu_mem_begin(struct gk20a *g, struct nvgpu_mem *mem)
void nvgpu_mem_end(struct gk20a *g, struct nvgpu_mem *mem)
{
mem->cpu_accessible = false;
if (mem->aperture != APERTURE_SYSMEM || g->mm.force_pramin)
return;