drm/amd/powerplay: add some sysfs interfaces for powerplay.

The new sysfs interfaces:
pp_num_states: Read-only, return the number of all pp states, 0 if powerplay is not available.
pp_cur_state: Read-only, return the index number of current pp state.
pp_force_state: Read-write, to write a power state index will switch to selected state forcedly and
		enable forced state mode, disable forced state mode. such as "echo >...".
pp_table: Read-write, binary output, to be used to read or write the dpm table, the maximum
		file size is 4KB of page size.
pp_dpm_sclk: Read-write, reading will return a dpm levels list, to write an index number will force
		powerplay to set the corresponding dpm level.
pp_dpm_mclk: same as sclk.
pp_dpm_pcie: same as sclk.

And add new setting "manual" to the existing interface power_dpm_force_performance_level.

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, 17 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 41c725e02f39..532e0a17dd9a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1503,6 +1503,7 @@ enum amdgpu_dpm_forced_level {
         AMDGPU_DPM_FORCED_LEVEL_AUTO = 0,
         AMDGPU_DPM_FORCED_LEVEL_LOW = 1,
         AMDGPU_DPM_FORCED_LEVEL_HIGH = 2,
+        AMDGPU_DPM_FORCED_LEVEL_MANUAL = 3,
 };
 
 struct amdgpu_vce_state {
@@ -2014,6 +2015,7 @@ struct amdgpu_device {
         /* powerplay */
         struct amd_powerplay            powerplay;
         bool                            pp_enabled;
+        bool                            pp_force_state_enabled;
 
         /* dpm */
         struct amdgpu_pm                pm;
@@ -2301,6 +2303,21 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
 #define amdgpu_dpm_get_performance_level(adev) \
         (adev)->powerplay.pp_funcs->get_performance_level((adev)->powerplay.pp_handle)
 
+#define amdgpu_dpm_get_pp_num_states(adev, data) \
+        (adev)->powerplay.pp_funcs->get_pp_num_states((adev)->powerplay.pp_handle, data)
+
+#define amdgpu_dpm_get_pp_table(adev, table) \
+        (adev)->powerplay.pp_funcs->get_pp_table((adev)->powerplay.pp_handle, table)
+
+#define amdgpu_dpm_set_pp_table(adev, buf, size) \
+        (adev)->powerplay.pp_funcs->set_pp_table((adev)->powerplay.pp_handle, buf, size)
+
+#define amdgpu_dpm_print_clock_levels(adev, type, buf) \
+        (adev)->powerplay.pp_funcs->print_clock_levels((adev)->powerplay.pp_handle, type, buf)
+
+#define amdgpu_dpm_force_clock_level(adev, type, level) \
+                (adev)->powerplay.pp_funcs->force_clock_level((adev)->powerplay.pp_handle, type, level)
+
 #define amdgpu_dpm_dispatch_task(adev, event_id, input, output)         \
         (adev)->powerplay.pp_funcs->dispatch_tasks((adev)->powerplay.pp_handle, (event_id), (input), (output))