drm/amdgpu: add df callback functions structure

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@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 3000c4a..df409dd 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1368,7 +1368,17 @@ struct amdgpu_nbio_funcs {
        void (*detect_hw_virt)(struct amdgpu_device *adev);
 };
 
-
+struct amdgpu_df_funcs {
+       void (*init)(struct amdgpu_device *adev);
+       void (*enable_broadcast_mode)(struct amdgpu_device *adev,
+                                     bool enable);
+       u32 (*get_fb_channel_number)(struct amdgpu_device *adev);
+       u32 (*get_hbm_channel_number)(struct amdgpu_device *adev);
+       void (*update_medium_grain_clock_gating)(struct amdgpu_device *adev,
+                                                bool enable);
+       void (*get_clockgating_state)(struct amdgpu_device *adev,
+                                     u32 *flags);
+};
 /* Define the HW IP blocks will be used in driver , add more if necessary */
 enum amd_hw_ip_block_type {
        GC_HWIP = 1,
@@ -1588,6 +1598,7 @@ struct amdgpu_device {
        uint32_t                *reg_offset[MAX_HWIP][HWIP_MAX_INSTANCE];
 
        const struct amdgpu_nbio_funcs  *nbio_funcs;
+       const struct amdgpu_df_funcs    *df_funcs;
 
        /* delayed work_func for deferring clockgating during resume */
        struct delayed_work     late_init_work;