drm/amdgpu: add the common code to support mclk OD

This implements mclk OverDrive(OD) through sysfs.
The new entry pp_mclk_od is read/write. The value of input/output
is an integer of the overclocking percentage.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index bf398a421de6..33bc79e378e1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1563,6 +1563,8 @@ struct amdgpu_dpm_funcs {
         int (*print_clock_levels)(struct amdgpu_device *adev, enum pp_clock_type type, char *buf);
         int (*get_sclk_od)(struct amdgpu_device *adev);
         int (*set_sclk_od)(struct amdgpu_device *adev, uint32_t value);
+        int (*get_mclk_od)(struct amdgpu_device *adev);
+        int (*set_mclk_od)(struct amdgpu_device *adev, uint32_t value);
 };
 
 struct amdgpu_dpm {
@@ -2351,6 +2353,12 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
 #define amdgpu_dpm_set_sclk_od(adev, value) \
         (adev)->powerplay.pp_funcs->set_sclk_od((adev)->powerplay.pp_handle, value)
 
+#define amdgpu_dpm_get_mclk_od(adev) \
+        ((adev)->powerplay.pp_funcs->get_mclk_od((adev)->powerplay.pp_handle))
+
+#define amdgpu_dpm_set_mclk_od(adev, value) \
+        ((adev)->powerplay.pp_funcs->set_mclk_od((adev)->powerplay.pp_handle, value))
+
 #define amdgpu_dpm_dispatch_task(adev, event_id, input, output)         \
         (adev)->powerplay.pp_funcs->dispatch_tasks((adev)->powerplay.pp_handle, (event_id), (input), (output))