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Commit 97bae49c authored by Tom St Denis's avatar Tom St Denis Committed by Alex Deucher
Browse files

drm/amd/amdgpu: Support VM environments in amdgpu_ttm_access_memory() 



Signed-off-by: default avatarTom St Denis <tom.stdenis@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e8820646

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

+4 −4
Original line number Diff line number Diff line
@@ -1201,14 +1201,14 @@ static int amdgpu_ttm_access_memory(struct ttm_buffer_object *bo, 
		}



		spin_lock_irqsave(&adev->mmio_idx_lock, flags);

		WREG32(mmMM_INDEX, ((uint32_t)aligned_pos) | 0x80000000);

		WREG32(mmMM_INDEX_HI, aligned_pos >> 31);

		WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t)aligned_pos) | 0x80000000);

		WREG32_NO_KIQ(mmMM_INDEX_HI, aligned_pos >> 31);

		if (!write || mask != 0xffffffff)

			value = RREG32(mmMM_DATA);

			value = RREG32_NO_KIQ(mmMM_DATA);

		if (write) {

			value &= ~mask;

			value |= (*(uint32_t *)buf << shift) & mask;

			WREG32(mmMM_DATA, value);

			WREG32_NO_KIQ(mmMM_DATA, value);

		}

		spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);

		if (!write) {