diff options
author | Terje Bergstrom <tbergstrom@nvidia.com> | 2018-06-15 13:12:02 -0400 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2018-06-22 13:04:26 -0400 |
commit | f2f03582fda04c4e09df1a349876c435a5ef52e0 (patch) | |
tree | b1722c56917aaa40e67719949f03619fc10b4ff5 /drivers/gpu/nvgpu/include | |
parent | 840e039d57d4acfb2be2a82c4b95a6d25c7aacd4 (diff) |
gpu: nvgpu: Add nvgpu_dma_alloc_vid_at()
Add a wrapper function nvgpu_dma_alloc_vid_at() for performing vidmem
allocation at a specific address without needing to pass any flags.
Change-Id: Ib7a21a4fd33120749cf7b79750c3a382ba08b470
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1753710
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/include')
-rw-r--r-- | drivers/gpu/nvgpu/include/nvgpu/dma.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/include/nvgpu/dma.h b/drivers/gpu/nvgpu/include/nvgpu/dma.h index c0397b58..d83346a3 100644 --- a/drivers/gpu/nvgpu/include/nvgpu/dma.h +++ b/drivers/gpu/nvgpu/include/nvgpu/dma.h | |||
@@ -167,6 +167,24 @@ int nvgpu_dma_alloc_vid(struct gk20a *g, size_t size, struct nvgpu_mem *mem); | |||
167 | int nvgpu_dma_alloc_flags_vid(struct gk20a *g, unsigned long flags, | 167 | int nvgpu_dma_alloc_flags_vid(struct gk20a *g, unsigned long flags, |
168 | size_t size, struct nvgpu_mem *mem); | 168 | size_t size, struct nvgpu_mem *mem); |
169 | 169 | ||
170 | |||
171 | /** | ||
172 | * nvgpu_dma_alloc_flags_vid_at - Allocate DMA memory | ||
173 | * | ||
174 | * @g - The GPU. | ||
175 | * @size - Size of the allocation in bytes. | ||
176 | * @mem - Struct for storing the allocation information. | ||
177 | * @at - A specific location to attempt to allocate memory from or 0 if the | ||
178 | * caller does not care what the address is. | ||
179 | * | ||
180 | * Allocate memory suitable for doing DMA. Store the allocation info in @mem. | ||
181 | * Returns 0 on success and a suitable error code when there's an error. This | ||
182 | * allocates memory specifically in VIDMEM. | ||
183 | * | ||
184 | */ | ||
185 | int nvgpu_dma_alloc_vid_at(struct gk20a *g, | ||
186 | size_t size, struct nvgpu_mem *mem, u64 at); | ||
187 | |||
170 | /** | 188 | /** |
171 | * nvgpu_dma_alloc_flags_vid_at - Allocate DMA memory | 189 | * nvgpu_dma_alloc_flags_vid_at - Allocate DMA memory |
172 | * | 190 | * |