drm/ttm: allow fence to be added as shared
This patch adds a new flag to the ttm_validate_buffer list to
add the fence as shared to the reservation object.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index a6e19c8..446e71c 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -226,6 +226,7 @@
qxl_bo_ref(bo);
entry->tv.bo = &bo->tbo;
+ entry->tv.shared = false;
list_add_tail(&entry->tv.head, &release->bos);
return 0;
}
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 6e3d1c8..cd517ab 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -183,6 +183,7 @@
}
p->relocs[i].tv.bo = &p->relocs[i].robj->tbo;
+ p->relocs[i].tv.shared = false;
p->relocs[i].handle = r->handle;
radeon_cs_buckets_add(&buckets, &p->relocs[i].tv.head,
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index 671ee56..1cce446 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -143,6 +143,7 @@
list[0].prefered_domains = RADEON_GEM_DOMAIN_VRAM;
list[0].allowed_domains = RADEON_GEM_DOMAIN_VRAM;
list[0].tv.bo = &vm->page_directory->tbo;
+ list[0].tv.shared = false;
list[0].tiling_flags = 0;
list[0].handle = 0;
list_add(&list[0].tv.head, head);
@@ -156,6 +157,7 @@
list[idx].prefered_domains = RADEON_GEM_DOMAIN_VRAM;
list[idx].allowed_domains = RADEON_GEM_DOMAIN_VRAM;
list[idx].tv.bo = &list[idx].robj->tbo;
+ list[idx].tv.shared = false;
list[idx].tiling_flags = 0;
list[idx].handle = 0;
list_add(&list[idx++].tv.head, head);
@@ -395,6 +397,7 @@
memset(&tv, 0, sizeof(tv));
tv.bo = &bo->tbo;
+ tv.shared = false;
INIT_LIST_HEAD(&head);
list_add(&tv.head, &head);
diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
index adafc0f..8ce508e 100644
--- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c
+++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
@@ -119,8 +119,14 @@
ret = -EBUSY;
}
- if (!ret)
- continue;
+ if (!ret) {
+ if (!entry->shared)
+ continue;
+
+ ret = reservation_object_reserve_shared(bo->resv);
+ if (!ret)
+ continue;
+ }
/* uh oh, we lost out, drop every reservation and try
* to only reserve this buffer, then start over if
@@ -136,6 +142,9 @@
ret = 0;
}
+ if (!ret && entry->shared)
+ ret = reservation_object_reserve_shared(bo->resv);
+
if (unlikely(ret != 0)) {
if (ret == -EINTR)
ret = -ERESTARTSYS;
@@ -183,7 +192,10 @@
list_for_each_entry(entry, list, head) {
bo = entry->bo;
- reservation_object_add_excl_fence(bo->resv, fence);
+ if (entry->shared)
+ reservation_object_add_shared_fence(bo->resv, fence);
+ else
+ reservation_object_add_excl_fence(bo->resv, fence);
ttm_bo_add_to_lru(bo);
__ttm_bo_unreserve(bo);
}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index 0ceaddc..b4de3b2 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -346,6 +346,7 @@
++sw_context->cur_val_buf;
val_buf = &vval_buf->base;
val_buf->bo = ttm_bo_reference(bo);
+ val_buf->shared = false;
list_add_tail(&val_buf->head, &sw_context->validate_nodes);
vval_buf->validate_as_mob = validate_as_mob;
}
@@ -2670,9 +2671,11 @@
INIT_LIST_HEAD(&validate_list);
pinned_val.bo = ttm_bo_reference(dev_priv->pinned_bo);
+ pinned_val.shared = false;
list_add_tail(&pinned_val.head, &validate_list);
query_val.bo = ttm_bo_reference(dev_priv->dummy_query_bo);
+ query_val.shared = false;
list_add_tail(&query_val.head, &validate_list);
ret = ttm_eu_reserve_buffers(&ticket, &validate_list, false);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index ff0e03b..2658431 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -133,6 +133,7 @@
struct ttm_validate_buffer val_buf;
val_buf.bo = bo;
+ val_buf.shared = false;
res->func->unbind(res, false, &val_buf);
}
res->backup_dirty = false;
@@ -1219,6 +1220,7 @@
INIT_LIST_HEAD(&val_list);
val_buf->bo = ttm_bo_reference(&res->backup->base);
+ val_buf->shared = false;
list_add_tail(&val_buf->head, &val_list);
ret = ttm_eu_reserve_buffers(NULL, &val_list, interruptible);
if (unlikely(ret != 0))
@@ -1312,6 +1314,7 @@
BUG_ON(!func->may_evict);
val_buf.bo = NULL;
+ val_buf.shared = false;
ret = vmw_resource_check_buffer(res, interruptible, &val_buf);
if (unlikely(ret != 0))
return ret;
@@ -1357,6 +1360,7 @@
return 0;
val_buf.bo = NULL;
+ val_buf.shared = false;
if (res->backup)
val_buf.bo = &res->backup->base;
do {
@@ -1474,6 +1478,7 @@
struct ttm_validate_buffer val_buf;
val_buf.bo = bo;
+ val_buf.shared = false;
list_for_each_entry_safe(res, n, &dma_buf->res_list, mob_head) {
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
index ff11a42..4604417 100644
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -39,11 +39,13 @@
*
* @head: list head for thread-private list.
* @bo: refcounted buffer object pointer.
+ * @shared: should the fence be added shared?
*/
struct ttm_validate_buffer {
struct list_head head;
struct ttm_buffer_object *bo;
+ bool shared;
};
/**