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

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>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 7b3d1ebda9df..f4f00217546e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -169,7 +169,7 @@ void amdgpu_gem_object_close(struct drm_gem_object *obj,
         INIT_LIST_HEAD(&duplicates);
 
         tv.bo = &bo->tbo;
-        tv.shared = true;
+        tv.num_shared = 1;
         list_add(&tv.head, &list);
 
         amdgpu_vm_get_pd_bo(vm, &list, &vm_pd);
@@ -604,7 +604,10 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
                         return -ENOENT;
                 abo = gem_to_amdgpu_bo(gobj);
                 tv.bo = &abo->tbo;
-                tv.shared = !!(abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID);
+                if (abo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)
+                        tv.num_shared = 1;
+                else
+                        tv.num_shared = 0;
                 list_add(&tv.head, &list);
         } else {
                 gobj = NULL;