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gpu: nvgpu: Delete NVGPU_DMA_FORCE_CONTIGUOUS

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The flag NVGPU_DMA_FORCE_CONTIGUOUS simply means that the memory
or the pages should be forced contiguous. Meanwhile, the other
flag NVGPU_DMA_PHYSICALLY_ADDRESSED means that the memory should
be contiguous from GPU perspective, either physically contiguous
when IOMMU is not used, or virtually contiguous by IOMMU.

Thus the NVGPU_DMA_FORCE_CONTIGUOUS flag is now redundant.

This patch cleans up the NVGPU_DMA_FORCE_CONTIGUOUS flag.

Bug 200444660

Change-Id: I63bb06fea728b34ec2c6f831504392d42c426d55
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2035403
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Nicolin Chen
2019-03-07 16:23:29 -08:00
committed by mobile promotions
parent ac3c3e2b69
commit a8e6d13652
3 changed files with 15 additions and 29 deletions
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2
drivers/gpu/nvgpu/common/mm/gmmu/pd_cache.c
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@@ -181,7 +181,7 @@ static int nvgpu_pd_cache_alloc_direct(struct gk20a *g,
* underlying allocations to be physically contiguous as well.
*/
if (!nvgpu_iommuable(g) && bytes > PAGE_SIZE) {
flags = NVGPU_DMA_FORCE_CONTIGUOUS;
flags = NVGPU_DMA_PHYSICALLY_ADDRESSED;
}
err = nvgpu_dma_alloc_flags(g, flags, bytes, pd->mem);