Am 11.11.24 um 09:05 schrieb Arunpravin Paneer Selvam:
When starting the mpv player, Radeon R9 users are observing
the below error in dmesg.
[drm:amdgpu_uvd_cs_pass2 [amdgpu]]
*ERROR* msg/fb buffer ff00f7c000-ff00f7e000 out of 256MB segment!
The patch tries to set the TTM_PL_FLAG_CONTIGUOUS for both user
flag(AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) set and not set cases.
Closes:https://gitlab.freedesktop.org/drm/amd/-/issues/3599
Closes:https://gitlab.freedesktop.org/drm/amd/-/issues/3501
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index d891ab779ca7..9f73f821054b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1801,13 +1801,17 @@ int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
if (dma_resv_locking_ctx((*bo)->tbo.base.resv) != &parser->exec.ticket)
return -EINVAL;
- (*bo)->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
- 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;
+ if ((*bo)->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) {
+ (*bo)->placements[0].flags |= TTM_PL_FLAG_CONTIGUOUS;
That is a pretty clearly broken approach. (*bo)->placements[0].flags is
just used temporary between the call to
amdgpu_bo_placement_from_domain() and ttm_bo_validate().
So setting the TTM_PL_FLAG_CONTIGUOUS here is certainly not correct. Why
is that necessary?
Regards,
Christian.
+ } else {
+ (*bo)->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
+ 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);
}
