Am 28.04.22 um 01:07 schrieb Philip Yang:
Otherwise userspace resubmit the BOs again will trigger kernel WARNING and fail the command submission. Signed-off-by: Philip Yang <Philip.Yang@xxxxxxx>
Thanks for looking into this Philip. Patch is Reviewed-by: Christian König <christian.koenig@xxxxxxx>
--- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index ea28942b0ede..44dcbef80229 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -550,7 +550,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, if (r) { kvfree(e->user_pages); e->user_pages = NULL; - return r; + goto out_free_user_pages; }for (i = 0; i < bo->tbo.ttm->num_pages; i++) {@@ -567,7 +567,7 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, if (unlikely(r != 0)) { if (r != -ERESTARTSYS) DRM_ERROR("ttm_eu_reserve_buffers failed.\n"); - goto out; + goto out_free_user_pages; }amdgpu_bo_list_for_each_entry(e, p->bo_list) {@@ -649,7 +649,19 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, } ttm_eu_backoff_reservation(&p->ticket, &p->validated); } -out: + +out_free_user_pages: + if (r) { + amdgpu_bo_list_for_each_userptr_entry(e, p->bo_list) { + struct amdgpu_bo *bo = ttm_to_amdgpu_bo(e->tv.bo); + + if (!e->user_pages) + continue; + amdgpu_ttm_tt_get_user_pages_done(bo->tbo.ttm); + kvfree(e->user_pages); + e->user_pages = NULL; + } + } return r; }
