drm/amdgpu: add IP helpers for wait_for_idle and is_idle
Helpers to to call the IP functions for the selected IP.
Reviewed-by: Chunming zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 0068955..7df1f48 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -187,6 +187,10 @@
int amdgpu_set_powergating_state(struct amdgpu_device *adev,
enum amd_ip_block_type block_type,
enum amd_powergating_state state);
+int amdgpu_wait_for_idle(struct amdgpu_device *adev,
+ enum amd_ip_block_type block_type);
+bool amdgpu_is_idle(struct amdgpu_device *adev,
+ enum amd_ip_block_type block_type);
struct amdgpu_ip_block_version {
enum amd_ip_block_type type;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 9757a85..c281cfd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1102,6 +1102,36 @@
return r;
}
+int amdgpu_wait_for_idle(struct amdgpu_device *adev,
+ enum amd_ip_block_type block_type)
+{
+ int i, r;
+
+ for (i = 0; i < adev->num_ip_blocks; i++) {
+ if (adev->ip_blocks[i].type == block_type) {
+ r = adev->ip_blocks[i].funcs->wait_for_idle((void *)adev);
+ if (r)
+ return r;
+ break;
+ }
+ }
+ return 0;
+
+}
+
+bool amdgpu_is_idle(struct amdgpu_device *adev,
+ enum amd_ip_block_type block_type)
+{
+ int i;
+
+ for (i = 0; i < adev->num_ip_blocks; i++) {
+ if (adev->ip_blocks[i].type == block_type)
+ return adev->ip_blocks[i].funcs->is_idle((void *)adev);
+ }
+ return true;
+
+}
+
const struct amdgpu_ip_block_version * amdgpu_get_ip_block(
struct amdgpu_device *adev,
enum amd_ip_block_type type)