[PATCH] drm/amdgpu: fix contiguous handling for IB parsing

Christian König ckoenig.leichtzumerken at gmail.com
Wed Jul 24 07:50:47 UTC 2024


Otherwise we won't get correct access to the IB.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index ec888fc6ead8..41055224930f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1763,7 +1763,7 @@ int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
 	struct ttm_operation_ctx ctx = { false, false };
 	struct amdgpu_vm *vm = &fpriv->vm;
 	struct amdgpu_bo_va_mapping *mapping;
-	int r;
+	int i, r;
 
 	addr /= AMDGPU_GPU_PAGE_SIZE;
 
@@ -1778,13 +1778,12 @@ int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
 	if (dma_resv_locking_ctx((*bo)->tbo.base.resv) != &parser->exec.ticket)
 		return -EINVAL;
 
-	if (!((*bo)->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)) {
-		(*bo)->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
-		amdgpu_bo_placement_from_domain(*bo, (*bo)->allowed_domains);
-		r = ttm_bo_validate(&(*bo)->tbo, &(*bo)->placement, &ctx);
-		if (r)
-			return r;
-	}
+	amdgpu_bo_placement_from_domain(*bo, (*bo)->allowed_domains);
+	for (i = 0; i < (*bo)->placement.num_placement; i++)
+		(*bo)->placements[i].flags |= TTM_PL_FLAG_CONTIGUOUS;
+	r = ttm_bo_validate(&(*bo)->tbo, &(*bo)->placement, &ctx);
+	if (r)
+		return r;
 
 	return amdgpu_ttm_alloc_gart(&(*bo)->tbo);
 }
-- 
2.34.1



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