diff mbox series

[5/8] drm/amdgpu: fix using shared fence for exported BOs v2

Message ID 20181004131250.2373-5-christian.koenig@amd.com (mailing list archive)
State New, archived
Headers show
Series [1/8] dma-buf: remove shared fence staging in reservation object | expand

Commit Message

Christian König Oct. 4, 2018, 1:12 p.m. UTC 
It is perfectly possible that the BO list is created before the BO is
exported. While at it cleanup setting shared to one instead of true.

v2: add comment and simplify logic

Signed-off-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c |  1 -
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c      | 13 +++++++++++--
 2 files changed, 11 insertions(+), 3 deletions(-)

Comments

Michel Dänzer Oct. 23, 2018, 1:40 p.m. UTC | #1 
On 2018-10-04 3:12 p.m., Christian König wrote:
> It is perfectly possible that the BO list is created before the BO is
> exported. While at it cleanup setting shared to one instead of true.

"clean up"


> v2: add comment and simplify logic
> 
> Signed-off-by: Christian König <christian.koenig@amd.com>

As this is a bug fix, should it be before patch 5 and have Cc: stable?
Either way, with the above fixed,

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
index b75d30ee80c6..5c79da8e1150 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
@@ -118,7 +118,6 @@  int amdgpu_bo_list_create(struct amdgpu_device *adev, struct drm_file *filp,
 		entry->priority = min(info[i].bo_priority,
 				      AMDGPU_BO_LIST_MAX_PRIORITY);
 		entry->tv.bo = &bo->tbo;
-		entry->tv.num_shared = !bo->prime_shared_count;
 
 		if (bo->preferred_domains == AMDGPU_GEM_DOMAIN_GDS)
 			list->gds_obj = bo;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 4476398e5b26..b8de56d1a866 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -598,6 +598,9 @@  static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
 			return r;
 	}
 
+	amdgpu_bo_list_for_each_entry(e, p->bo_list)
+		e->tv.num_shared = 1;
+
 	amdgpu_bo_list_get_list(p->bo_list, &p->validated);
 	if (p->bo_list->first_userptr != p->bo_list->num_entries)
 		p->mn = amdgpu_mn_get(p->adev, AMDGPU_MN_TYPE_GFX);
@@ -717,8 +720,14 @@  static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
 	gws = p->bo_list->gws_obj;
 	oa = p->bo_list->oa_obj;
 
-	amdgpu_bo_list_for_each_entry(e, p->bo_list)
-		e->bo_va = amdgpu_vm_bo_find(vm, ttm_to_amdgpu_bo(e->tv.bo));
+	amdgpu_bo_list_for_each_entry(e, p->bo_list) {
+		struct amdgpu_bo *bo = ttm_to_amdgpu_bo(e->tv.bo);
+
+		/* Make sure we use the exclusive slot for shared BOs */
+		if (bo->prime_shared_count)
+			e->tv.num_shared = 0;
+		e->bo_va = amdgpu_vm_bo_find(vm, bo);
+	}
 
 	if (gds) {
 		p->job->gds_base = amdgpu_bo_gpu_offset(gds) >> PAGE_SHIFT;