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drm/ttm: allow reserving more than one shared slot v3

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Let's support simultaneous submissions to multiple engines.

v2: rename the field to num_shared and fix up all users
v3: rebased

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-09-19 16:25:08 +02:00
committed by Alex Deucher
parent c50fe0c5b1
commit a9f34c70fd
14 changed files with 35 additions and 30 deletions
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10
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
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@@ -85,7 +85,7 @@ static void vmw_resource_release(struct kref *kref)
struct ttm_validate_buffer val_buf;
val_buf.bo = bo;
val_buf.shared = false;
val_buf.num_shared = 0;
res->func->unbind(res, false, &val_buf);
}
res->backup_dirty = false;
@@ -462,7 +462,7 @@ vmw_resource_check_buffer(struct ww_acquire_ctx *ticket,
INIT_LIST_HEAD(&val_list);
val_buf->bo = ttm_bo_reference(&res->backup->base);
val_buf->shared = false;
val_buf->num_shared = 0;
list_add_tail(&val_buf->head, &val_list);
ret = ttm_eu_reserve_buffers(ticket, &val_list, interruptible, NULL);
if (unlikely(ret != 0))
@@ -565,7 +565,7 @@ static int vmw_resource_do_evict(struct ww_acquire_ctx *ticket,
BUG_ON(!func->may_evict);
val_buf.bo = NULL;
val_buf.shared = false;
val_buf.num_shared = 0;
ret = vmw_resource_check_buffer(ticket, res, interruptible, &val_buf);
if (unlikely(ret != 0))
return ret;
@@ -614,7 +614,7 @@ int vmw_resource_validate(struct vmw_resource *res, bool intr)
return 0;
val_buf.bo = NULL;
val_buf.shared = false;
val_buf.num_shared = 0;
if (res->backup)
val_buf.bo = &res->backup->base;
do {
@@ -685,7 +685,7 @@ void vmw_resource_unbind_list(struct vmw_buffer_object *vbo)
struct vmw_resource *res, *next;
struct ttm_validate_buffer val_buf = {
.bo = &vbo->base,
.shared = false
.num_shared = 0
};
lockdep_assert_held(&vbo->base.resv->lock.base);