Used by userspace to adjust buffer priorities in response to changes in
application demand and memory pressure.
Signed-off-by: Friedrich Vock <friedrich.vock@xxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 20 ++++++++++++++++++++
include/uapi/drm/amdgpu_drm.h | 1 +
2 files changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 5ca13e2e50f50..6107810a9c205 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -836,8 +836,10 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
{
struct amdgpu_device *adev = drm_to_adev(dev);
struct drm_amdgpu_gem_op *args = data;
+ struct ttm_resource_manager *man;
struct drm_gem_object *gobj;
struct amdgpu_vm_bo_base *base;
+ struct ttm_operation_ctx ctx;
struct amdgpu_bo *robj;
int r;
@@ -851,6 +853,9 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
if (unlikely(r))
goto out;
+ memset(&ctx, 0, sizeof(ctx));
+ ctx.interruptible = true;
+
switch (args->op) {
case AMDGPU_GEM_OP_GET_GEM_CREATE_INFO: {
struct drm_amdgpu_gem_create_in info;
@@ -898,6 +903,21 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data,
amdgpu_bo_unreserve(robj);
break;
+ case AMDGPU_GEM_OP_SET_PRIORITY:
+ if (args->value > AMDGPU_BO_PRIORITY_MAX_USER)
+ args->value = AMDGPU_BO_PRIORITY_MAX_USER;
+ ttm_bo_update_priority(&robj->tbo, args->value);
+ if (robj->tbo.evicted_type != TTM_NUM_MEM_TYPES) {
+ ttm_bo_try_unevict(&robj->tbo, &ctx);
+ amdgpu_bo_unreserve(robj);
+ } else {
+ amdgpu_bo_unreserve(robj);
+ man = ttm_manager_type(robj->tbo.bdev,
+ robj->tbo.resource->mem_type);
+ ttm_mem_unevict_evicted(robj->tbo.bdev, man,
+ true);
+ }
+ break;
default:
amdgpu_bo_unreserve(robj);
r = -EINVAL;
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index bdbe6b262a78d..53552dd489b9b 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -531,6 +531,7 @@ union drm_amdgpu_wait_fences {
#define AMDGPU_GEM_OP_GET_GEM_CREATE_INFO 0
#define AMDGPU_GEM_OP_SET_PLACEMENT 1
+#define AMDGPU_GEM_OP_SET_PRIORITY 2
/* Sets or returns a value associated with a buffer. */
struct drm_amdgpu_gem_op {
--
2.44.0
