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| author | Deepak Nibade <dnibade@nvidia.com> | 2016-09-06 08:22:20 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2016-09-15 15:24:45 -0400 |
| commit | f919aab509aea3753785c2e1481b96d4daf7e4a8 (patch) | |
| tree | aa8307c1330a2304b79bbd1c8489e556b3de4838 /drivers/gpu/nvgpu/gk20a/fence_gk20a.h | |
| parent | f036594190c4219dcecc13af6fc9ebf82ca16e67 (diff) | |
gpu: nvgpu: add safety for vidmem addresses
Add new API set_vidmem_page_alloc() which sets BIT(0)
in sg_dma_address() only for vidmem allocation
Add and use new API get_vidmem_page_alloc() which
receives scatterlist and returns pointer to vidmem
allocation i.e. struct gk20a_page_alloc *alloc
In this API, check if BIT(0) is set or not in
sg_dma_address() before converting it to allocation
address
In gk20a_mm_smmu_vaddr_translate(), ensure that
the address is pure IOVA address by verifying that
BIT(0) is not set in that address
Jira DNVGPU-22
Change-Id: Ib53ff4b63ac59a8d870bc01d0af59839c6143334
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1216142
(cherry picked from commit 03c9fbdaa40746dc43335cd8fbe9f97ef2ef50c9)
Reviewed-on: http://git-master/r/1219705
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/fence_gk20a.h')
0 files changed, 0 insertions, 0 deletions