This allows to detect deadlocks happening because of resource
constraints.
Especially submissions which want to use all of GDS doesn't result in
sporadic -ENOMEM any more.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 86 ++++++++++++++------------
1 file changed, 46 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index ec888fc6ead8..ff532c8b7a62 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -782,7 +782,7 @@ static int amdgpu_cs_bo_validate(void *param, struct
amdgpu_bo *bo)
struct ttm_operation_ctx ctx = {
.interruptible = true,
.no_wait_gpu = false,
- .resv = bo->tbo.base.resv
+ .exec = &p->exec,
};
uint32_t domain;
int r;
@@ -834,7 +834,10 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
union drm_amdgpu_cs *cs)
{
struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
- struct ttm_operation_ctx ctx = { true, false };
+ struct ttm_operation_ctx ctx = {
+ .interruptible =true,
+ .exec = &p->exec
+ };
struct amdgpu_vm *vm = &fpriv->vm;
struct amdgpu_bo_list_entry *e;
struct drm_gem_object *obj;
@@ -919,50 +922,56 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser
*p,
if (unlikely(r))
goto out_free_user_pages;
}
- }
-
- amdgpu_bo_list_for_each_userptr_entry(e, p->bo_list) {
- struct mm_struct *usermm;
- usermm = amdgpu_ttm_tt_get_usermm(e->bo->tbo.ttm);
- if (usermm && usermm != current->mm) {
- r = -EPERM;
- goto out_free_user_pages;
- }
+ amdgpu_bo_list_for_each_userptr_entry(e, p->bo_list) {
+ struct mm_struct *usermm;
- if (amdgpu_ttm_tt_is_userptr(e->bo->tbo.ttm) &&
- e->user_invalidated && e->user_pages) {
- amdgpu_bo_placement_from_domain(e->bo,
- AMDGPU_GEM_DOMAIN_CPU);
- r = ttm_bo_validate(&e->bo->tbo, &e->bo->placement,
- &ctx);
- if (r)
+ usermm = amdgpu_ttm_tt_get_usermm(e->bo->tbo.ttm);
+ if (usermm && usermm != current->mm) {
+ r = -EPERM;
goto out_free_user_pages;
+ }
+
+ if (amdgpu_ttm_tt_is_userptr(e->bo->tbo.ttm) &&
+ e->user_invalidated && e->user_pages) {
+ amdgpu_bo_placement_from_domain(e->bo,
+
AMDGPU_GEM_DOMAIN_CPU);
+ r = ttm_bo_validate(&e->bo->tbo,
&e->bo->placement,
+ &ctx);
+ drm_exec_retry_on_contention(&p->exec);
+ if (r)
+ goto out_free_user_pages;
+
+ amdgpu_ttm_tt_set_user_pages(e->bo->tbo.ttm,
+ e->user_pages);
+ }
- amdgpu_ttm_tt_set_user_pages(e->bo->tbo.ttm,
- e->user_pages);
+ kvfree(e->user_pages);
+ e->user_pages = NULL;
}
- kvfree(e->user_pages);
- e->user_pages = NULL;
- }
+ amdgpu_cs_get_threshold_for_moves(p->adev,
&p->bytes_moved_threshold,
+
&p->bytes_moved_vis_threshold);
+ p->bytes_moved = 0;
+ p->bytes_moved_vis = 0;
- amdgpu_cs_get_threshold_for_moves(p->adev, &p->bytes_moved_threshold,
- &p->bytes_moved_vis_threshold);
- p->bytes_moved = 0;
- p->bytes_moved_vis = 0;
+ r = amdgpu_vm_validate(p->adev, &fpriv->vm, NULL,
+ amdgpu_cs_bo_validate, p);
+ drm_exec_retry_on_contention(&p->exec);
+ if (r) {
+ DRM_ERROR("amdgpu_vm_validate() failed.\n");
+ goto out_free_user_pages;
+ }
- r = amdgpu_vm_validate(p->adev, &fpriv->vm, NULL,
- amdgpu_cs_bo_validate, p);
- if (r) {
- DRM_ERROR("amdgpu_vm_validate() failed.\n");
- goto out_free_user_pages;
- }
+ drm_exec_for_each_locked_object(&p->exec, index, obj) {
+ r = amdgpu_cs_bo_validate(p, gem_to_amdgpu_bo(obj));
+ drm_exec_retry_on_contention(&p->exec);
+ if (unlikely(r))
+ goto out_free_user_pages;
+ }
- drm_exec_for_each_locked_object(&p->exec, index, obj) {
- r = amdgpu_cs_bo_validate(p, gem_to_amdgpu_bo(obj));
- if (unlikely(r))
- goto out_free_user_pages;
+ amdgpu_cs_report_moved_bytes(p->adev, p->bytes_moved,
+ p->bytes_moved_vis);
}
if (p->uf_bo) {
@@ -973,9 +982,6 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
p->gang_leader->uf_addr += amdgpu_bo_gpu_offset(p->uf_bo);
}
- amdgpu_cs_report_moved_bytes(p->adev, p->bytes_moved,
- p->bytes_moved_vis);
-
for (i = 0; i < p->gang_size; ++i)
amdgpu_job_set_resources(p->jobs[i], p->bo_list->gds_obj,
p->bo_list->gws_obj,
--
2.34.1
