drm/amd/amdgpu: Add helper to get ip block valid

Add helper function to check if ip block is enabled

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@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 9b1e0ed..716f97e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -367,6 +367,8 @@ int amdgpu_device_ip_wait_for_idle(struct amdgpu_device *adev,
                                   enum amd_ip_block_type block_type);
 bool amdgpu_device_ip_is_idle(struct amdgpu_device *adev,
                              enum amd_ip_block_type block_type);
+bool amdgpu_device_ip_is_valid(struct amdgpu_device *adev,
+                             enum amd_ip_block_type block_type);
 
 #define AMDGPU_MAX_IP_NUM 16
 

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index c2394c8..193d165 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2193,6 +2193,28 @@ bool amdgpu_device_ip_is_idle(struct amdgpu_device *adev,
 
 }
 
+/**
+ * amdgpu_device_ip_is_valid - is the hardware IP enabled
+ *
+ * @adev: amdgpu_device pointer
+ * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
+ *
+ * Check if the hardware IP is enable or not.
+ * Returns true if it the IP is enable, false if not.
+ */
+bool amdgpu_device_ip_is_valid(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].version->type == block_type)
+                       return adev->ip_blocks[i].status.valid;
+       }
+       return false;
+
+}
+
 /**
  * amdgpu_device_ip_get_ip_block - get a hw IP pointer
  *