This will help on validating the userq input args, and
rejecting for the invalid userq request at the IOCTLs
first place.
Signed-off-by: Prike Liang <prike.li...@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 81 +++++++++++++++-------
drivers/gpu/drm/amd/amdgpu/mes_userqueue.c | 7 --
2 files changed, 56 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
index 295e7186e156..7f9dfeae4322 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
@@ -359,27 +359,10 @@ amdgpu_userq_create(struct drm_file *filp, union
drm_amdgpu_userq *args)
(args->in.flags &
AMDGPU_USERQ_CREATE_FLAGS_QUEUE_PRIORITY_MASK) >>
AMDGPU_USERQ_CREATE_FLAGS_QUEUE_PRIORITY_SHIFT;
- /* Usermode queues are only supported for GFX IP as of now */
- if (args->in.ip_type != AMDGPU_HW_IP_GFX &&
- args->in.ip_type != AMDGPU_HW_IP_DMA &&
- args->in.ip_type != AMDGPU_HW_IP_COMPUTE) {
- drm_file_err(uq_mgr->file, "Usermode queue doesn't support IP
type %u\n",
- args->in.ip_type);
- return -EINVAL;
- }
-
r = amdgpu_userq_priority_permit(filp, priority);
if (r)
return r;
- if ((args->in.flags & AMDGPU_USERQ_CREATE_FLAGS_QUEUE_SECURE) &&
- (args->in.ip_type != AMDGPU_HW_IP_GFX) &&
- (args->in.ip_type != AMDGPU_HW_IP_COMPUTE) &&
- !amdgpu_is_tmz(adev)) {
- drm_file_err(uq_mgr->file, "Secure only supported on
GFX/Compute queues\n");
- return -EINVAL;
- }
-
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
if (r < 0) {
drm_file_err(uq_mgr->file, "pm_runtime_get_sync() failed for
userqueue create\n");
@@ -485,22 +468,45 @@ amdgpu_userq_create(struct drm_file *filp, union
drm_amdgpu_userq *args)
return r;
}
-int amdgpu_userq_ioctl(struct drm_device *dev, void *data,
- struct drm_file *filp)
+static int amdgpu_userq_input_args_validate(struct drm_device *dev,
+ union drm_amdgpu_userq *args,
+ struct drm_file *filp)
{
- union drm_amdgpu_userq *args = data;
- int r;
+ struct amdgpu_device *adev = drm_to_adev(dev);
switch (args->in.op) {
case AMDGPU_USERQ_OP_CREATE:
if (args->in.flags &
~(AMDGPU_USERQ_CREATE_FLAGS_QUEUE_PRIORITY_MASK |
AMDGPU_USERQ_CREATE_FLAGS_QUEUE_SECURE))
return -EINVAL;
- r = amdgpu_userq_create(filp, args);
- if (r)
- drm_file_err(filp, "Failed to create usermode queue\n");
- break;
+ /* Usermode queues are only supported for GFX IP as of now */
+ if (args->in.ip_type != AMDGPU_HW_IP_GFX &&
+ args->in.ip_type != AMDGPU_HW_IP_DMA &&
+ args->in.ip_type != AMDGPU_HW_IP_COMPUTE) {
+ drm_file_err(filp, "Usermode queue doesn't support IP
type %u\n",
+ args->in.ip_type);
+ return -EINVAL;
+ }
+
+ if ((args->in.flags & AMDGPU_USERQ_CREATE_FLAGS_QUEUE_SECURE) &&
+ (args->in.ip_type != AMDGPU_HW_IP_GFX) &&
+ (args->in.ip_type != AMDGPU_HW_IP_COMPUTE) &&
+ !amdgpu_is_tmz(adev)) {
+ drm_file_err(filp, "Secure only supported on
GFX/Compute queues\n");
+ return -EINVAL;
+ }
+ if (args->in.queue_va == AMDGPU_BO_INVALID_OFFSET ||
+ args->in.queue_va == 0 ||
+ args->in.queue_size == 0) {
+ drm_file_err(filp, "invalidate userq queue va or
size\n");
+ return -EINVAL;
+ }
+ if (!args->in.wptr_va || !args->in.rptr_va) {
+ drm_file_err(filp, "invalidate userq queue rptr or
wptr\n");
+ return -EINVAL;
+ }
+ break;
case AMDGPU_USERQ_OP_FREE:
if (args->in.ip_type ||
args->in.doorbell_handle ||
@@ -514,6 +520,31 @@ int amdgpu_userq_ioctl(struct drm_device *dev, void *data,
args->in.mqd ||
args->in.mqd_size)
return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int amdgpu_userq_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *filp)
+{
+ union drm_amdgpu_userq *args = data;
+ int r;
+
+ if (amdgpu_userq_input_args_validate(dev, args, filp) < 0)
+ return -EINVAL;
+
+ switch (args->in.op) {
+ case AMDGPU_USERQ_OP_CREATE:
+ r = amdgpu_userq_create(filp, args);
+ if (r)
+ drm_file_err(filp, "Failed to create usermode queue\n");
+ break;
+
+ case AMDGPU_USERQ_OP_FREE:
r = amdgpu_userq_destroy(filp, args->in.queue_id);
if (r)
drm_file_err(filp, "Failed to destroy usermode
queue\n");
diff --git a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
index d6f50b13e2ba..1457fb49a794 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_userqueue.c
@@ -215,13 +215,6 @@ static int mes_userq_mqd_create(struct amdgpu_userq_mgr
*uq_mgr,
return -ENOMEM;
}
- if (!mqd_user->wptr_va || !mqd_user->rptr_va ||
- !mqd_user->queue_va || mqd_user->queue_size == 0) {
- DRM_ERROR("Invalid MQD parameters for userqueue\n");
- r = -EINVAL;
- goto free_props;
- }
-
r = amdgpu_userq_create_object(uq_mgr, &queue->mqd,
mqd_hw_default->mqd_size);
if (r) {
DRM_ERROR("Failed to create MQD object for userqueue\n");
--
2.34.1
