Re: [PATCH V4 03/17] drm/amd/pm: do not expose power implementation details to display

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On 12/3/2021 8:35 AM, Evan Quan wrote:
Display is another client of our power APIs. It's not proper to spike
into power implementation details there.

Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
Change-Id: Ic897131e16473ed29d3d7586d822a55c64e6574a
---
  .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |   6 +-
  .../amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c  | 246 +++++++-----------
  drivers/gpu/drm/amd/pm/amdgpu_dpm.c           | 218 ++++++++++++++++
  drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h       |  38 +++
  4 files changed, 344 insertions(+), 164 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 7837e0613717..2c6c840e14a1 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2136,12 +2136,8 @@ static void s3_handle_mst(struct drm_device *dev, bool suspend)
static int amdgpu_dm_smu_write_watermarks_table(struct amdgpu_device *adev)
  {
-	struct smu_context *smu = &adev->smu;
  	int ret = 0;
- if (!is_support_sw_smu(adev))
-		return 0;
-
  	/* This interface is for dGPU Navi1x.Linux dc-pplib interface depends
  	 * on window driver dc implementation.
  	 * For Navi1x, clock settings of dcn watermarks are fixed. the settings
@@ -2180,7 +2176,7 @@ static int amdgpu_dm_smu_write_watermarks_table(struct amdgpu_device *adev)
  		return 0;
  	}
- ret = smu_write_watermarks_table(smu);
+	ret = amdgpu_dpm_write_watermarks_table(adev);
  	if (ret) {
  		DRM_ERROR("Failed to update WMTABLE!\n");
  		return ret;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
index eba270121698..46550811da00 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
@@ -99,10 +99,7 @@ bool dm_pp_apply_display_requirements(
  			adev->pm.pm_display_cfg.displays[i].controller_id = dc_cfg->pipe_idx + 1;
  		}
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->display_configuration_change)
-			adev->powerplay.pp_funcs->display_configuration_change(
-				adev->powerplay.pp_handle,
-				&adev->pm.pm_display_cfg);
+		amdgpu_dpm_display_configuration_change(adev, &adev->pm.pm_display_cfg);
amdgpu_pm_compute_clocks(adev);
  	}
@@ -298,31 +295,25 @@ bool dm_pp_get_clock_levels_by_type(
  		struct dm_pp_clock_levels *dc_clks)
  {
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
  	struct amd_pp_clocks pp_clks = { 0 };
  	struct amd_pp_simple_clock_info validation_clks = { 0 };
  	uint32_t i;
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_clock_by_type) {
-		if (adev->powerplay.pp_funcs->get_clock_by_type(pp_handle,
-			dc_to_pp_clock_type(clk_type), &pp_clks)) {
-			/* Error in pplib. Provide default values. */
-			get_default_clock_levels(clk_type, dc_clks);
-			return true;
-		}
+	if (amdgpu_dpm_get_clock_by_type(adev,
+		dc_to_pp_clock_type(clk_type), &pp_clks)) {
+		/* Error in pplib. Provide default values. */
+		get_default_clock_levels(clk_type, dc_clks);
+		return true;
  	}
pp_to_dc_clock_levels(&pp_clks, dc_clks, clk_type); - if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_display_mode_validation_clocks) {
-		if (adev->powerplay.pp_funcs->get_display_mode_validation_clocks(
-						pp_handle, &validation_clks)) {
-			/* Error in pplib. Provide default values. */
-			DRM_INFO("DM_PPLIB: Warning: using default validation clocks!\n");
-			validation_clks.engine_max_clock = 72000;
-			validation_clks.memory_max_clock = 80000;
-			validation_clks.level = 0;
-		}
+	if (amdgpu_dpm_get_display_mode_validation_clks(adev, &validation_clks)) {
+		/* Error in pplib. Provide default values. */
+		DRM_INFO("DM_PPLIB: Warning: using default validation clocks!\n");
+		validation_clks.engine_max_clock = 72000;
+		validation_clks.memory_max_clock = 80000;
+		validation_clks.level = 0;
  	}
DRM_INFO("DM_PPLIB: Validation clocks:\n");
@@ -370,18 +361,14 @@ bool dm_pp_get_clock_levels_by_type_with_latency(
  	struct dm_pp_clock_levels_with_latency *clk_level_info)
  {
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
  	struct pp_clock_levels_with_latency pp_clks = { 0 };
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
  	int ret;
- if (pp_funcs && pp_funcs->get_clock_by_type_with_latency) {
-		ret = pp_funcs->get_clock_by_type_with_latency(pp_handle,
-						dc_to_pp_clock_type(clk_type),
-						&pp_clks);
-		if (ret)
-			return false;
-	}
+	ret = amdgpu_dpm_get_clock_by_type_with_latency(adev,
+					dc_to_pp_clock_type(clk_type),
+					&pp_clks);
+	if (ret)
+		return false;
pp_to_dc_clock_levels_with_latency(&pp_clks, clk_level_info, clk_type); @@ -394,18 +381,14 @@ bool dm_pp_get_clock_levels_by_type_with_voltage(
  	struct dm_pp_clock_levels_with_voltage *clk_level_info)
  {
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
  	struct pp_clock_levels_with_voltage pp_clk_info = {0};
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
  	int ret;
- if (pp_funcs && pp_funcs->get_clock_by_type_with_voltage) {
-		ret = pp_funcs->get_clock_by_type_with_voltage(pp_handle,
-						dc_to_pp_clock_type(clk_type),
-						&pp_clk_info);
-		if (ret)
-			return false;
-	}
+	ret = amdgpu_dpm_get_clock_by_type_with_voltage(adev,
+					dc_to_pp_clock_type(clk_type),
+					&pp_clk_info);
+	if (ret)
+		return false;
pp_to_dc_clock_levels_with_voltage(&pp_clk_info, clk_level_info, clk_type); @@ -417,19 +400,16 @@ bool dm_pp_notify_wm_clock_changes(
  	struct dm_pp_wm_sets_with_clock_ranges *wm_with_clock_ranges)
  {
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
/*
  	 * Limit this watermark setting for Polaris for now
  	 * TODO: expand this to other ASICs
  	 */
-	if ((adev->asic_type >= CHIP_POLARIS10) && (adev->asic_type <= CHIP_VEGAM)
-	     && pp_funcs && pp_funcs->set_watermarks_for_clocks_ranges) {
-		if (!pp_funcs->set_watermarks_for_clocks_ranges(pp_handle,
+	if ((adev->asic_type >= CHIP_POLARIS10) &&
+	     (adev->asic_type <= CHIP_VEGAM) &&
+	     !amdgpu_dpm_set_watermarks_for_clocks_ranges(adev,
  						(void *)wm_with_clock_ranges))
  			return true;
-	}
return false;
  }
@@ -456,12 +436,10 @@ bool dm_pp_apply_clock_for_voltage_request(
  	if (!pp_clock_request.clock_type)
  		return false;
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->display_clock_voltage_request)
-		ret = adev->powerplay.pp_funcs->display_clock_voltage_request(
-			adev->powerplay.pp_handle,
-			&pp_clock_request);
-	if (ret)
+	ret = amdgpu_dpm_display_clock_voltage_request(adev, &pp_clock_request);
+	if (ret && (ret != -EOPNOTSUPP))
  		return false;
+
  	return true;
  }
@@ -471,15 +449,8 @@ bool dm_pp_get_static_clocks(
  {
  	struct amdgpu_device *adev = ctx->driver_context;
  	struct amd_pp_clock_info pp_clk_info = {0};
-	int ret = 0;
- if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_current_clocks)
-		ret = adev->powerplay.pp_funcs->get_current_clocks(
-			adev->powerplay.pp_handle,
-			&pp_clk_info);
-	else
-		return false;
-	if (ret)
+	if (amdgpu_dpm_get_current_clocks(adev, &pp_clk_info))
  		return false;
static_clk_info->max_clocks_state = pp_to_dc_powerlevel_state(pp_clk_info.max_clocks_state);
@@ -494,8 +465,6 @@ static void pp_rv_set_wm_ranges(struct pp_smu *pp,
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
  	struct dm_pp_wm_sets_with_clock_ranges_soc15 wm_with_clock_ranges;
  	struct dm_pp_clock_range_for_dmif_wm_set_soc15 *wm_dce_clocks = wm_with_clock_ranges.wm_dmif_clocks_ranges;
  	struct dm_pp_clock_range_for_mcif_wm_set_soc15 *wm_soc_clocks = wm_with_clock_ranges.wm_mcif_clocks_ranges;
@@ -536,72 +505,48 @@ static void pp_rv_set_wm_ranges(struct pp_smu *pp,
  				ranges->writer_wm_sets[i].min_drain_clk_mhz * 1000;
  	}
- if (pp_funcs && pp_funcs->set_watermarks_for_clocks_ranges)
-		pp_funcs->set_watermarks_for_clocks_ranges(pp_handle,
-							   &wm_with_clock_ranges);
+	amdgpu_dpm_set_watermarks_for_clocks_ranges(adev,
+						    &wm_with_clock_ranges);
  }
static void pp_rv_set_pme_wa_enable(struct pp_smu *pp)
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
- if (pp_funcs && pp_funcs->notify_smu_enable_pwe)
-		pp_funcs->notify_smu_enable_pwe(pp_handle);
+	amdgpu_dpm_notify_smu_enable_pwe(adev);
  }
static void pp_rv_set_active_display_count(struct pp_smu *pp, int count)
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
- if (!pp_funcs || !pp_funcs->set_active_display_count)
-		return;
-
-	pp_funcs->set_active_display_count(pp_handle, count);
+	amdgpu_dpm_set_active_display_count(adev, count);
  }
static void pp_rv_set_min_deep_sleep_dcfclk(struct pp_smu *pp, int clock)
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
-
-	if (!pp_funcs || !pp_funcs->set_min_deep_sleep_dcefclk)
-		return;
- pp_funcs->set_min_deep_sleep_dcefclk(pp_handle, clock);
+	amdgpu_dpm_set_min_deep_sleep_dcefclk(adev, clock);
  }
static void pp_rv_set_hard_min_dcefclk_by_freq(struct pp_smu *pp, int clock)
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
- if (!pp_funcs || !pp_funcs->set_hard_min_dcefclk_by_freq)
-		return;
-
-	pp_funcs->set_hard_min_dcefclk_by_freq(pp_handle, clock);
+	amdgpu_dpm_set_hard_min_dcefclk_by_freq(adev, clock);
  }
static void pp_rv_set_hard_min_fclk_by_freq(struct pp_smu *pp, int mhz)
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
-
-	if (!pp_funcs || !pp_funcs->set_hard_min_fclk_by_freq)
-		return;
- pp_funcs->set_hard_min_fclk_by_freq(pp_handle, mhz);
+	amdgpu_dpm_set_hard_min_fclk_by_freq(adev, mhz);
  }
static enum pp_smu_status pp_nv_set_wm_ranges(struct pp_smu *pp,
@@ -609,11 +554,8 @@ static enum pp_smu_status pp_nv_set_wm_ranges(struct pp_smu *pp,
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
- if (pp_funcs && pp_funcs->set_watermarks_for_clocks_ranges)
-		pp_funcs->set_watermarks_for_clocks_ranges(pp_handle, ranges);
+	amdgpu_dpm_set_watermarks_for_clocks_ranges(adev, ranges);
return PP_SMU_RESULT_OK;
  }
@@ -622,14 +564,13 @@ static enum pp_smu_status pp_nv_set_display_count(struct pp_smu *pp, int count)
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+	int ret = 0;
- if (!pp_funcs || !pp_funcs->set_active_display_count)
+	ret = amdgpu_dpm_set_active_display_count(adev, count);
+	if (ret == -EOPNOTSUPP)
  		return PP_SMU_RESULT_UNSUPPORTED;
-
-	/* 0: successful or smu.ppt_funcs->set_display_count = NULL;  1: fail */
-	if (pp_funcs->set_active_display_count(pp_handle, count))
+	else if (ret)
+		/* 0: successful or smu.ppt_funcs->set_display_count = NULL;  1: fail */
  		return PP_SMU_RESULT_FAIL;
return PP_SMU_RESULT_OK;
@@ -640,14 +581,13 @@ pp_nv_set_min_deep_sleep_dcfclk(struct pp_smu *pp, int mhz)
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
-
-	if (!pp_funcs || !pp_funcs->set_min_deep_sleep_dcefclk)
-		return PP_SMU_RESULT_UNSUPPORTED;
+	int ret = 0;
/* 0: successful or smu.ppt_funcs->set_deep_sleep_dcefclk = NULL;1: fail */
-	if (pp_funcs->set_min_deep_sleep_dcefclk(pp_handle, mhz))
+	ret = amdgpu_dpm_set_min_deep_sleep_dcefclk(adev, mhz);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
  		return PP_SMU_RESULT_FAIL;
return PP_SMU_RESULT_OK;
@@ -658,12 +598,8 @@ static enum pp_smu_status pp_nv_set_hard_min_dcefclk_by_freq(
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
  	struct pp_display_clock_request clock_req;
-
-	if (!pp_funcs || !pp_funcs->display_clock_voltage_request)
-		return PP_SMU_RESULT_UNSUPPORTED;
+	int ret = 0;
clock_req.clock_type = amd_pp_dcef_clock;
  	clock_req.clock_freq_in_khz = mhz * 1000;
@@ -671,7 +607,10 @@ static enum pp_smu_status pp_nv_set_hard_min_dcefclk_by_freq(
  	/* 0: successful or smu.ppt_funcs->display_clock_voltage_request = NULL
  	 * 1: fail
  	 */
-	if (pp_funcs->display_clock_voltage_request(pp_handle, &clock_req))
+	ret = amdgpu_dpm_display_clock_voltage_request(adev, &clock_req);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
  		return PP_SMU_RESULT_FAIL;
return PP_SMU_RESULT_OK;
@@ -682,12 +621,8 @@ pp_nv_set_hard_min_uclk_by_freq(struct pp_smu *pp, int mhz)
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
  	struct pp_display_clock_request clock_req;
-
-	if (!pp_funcs || !pp_funcs->display_clock_voltage_request)
-		return PP_SMU_RESULT_UNSUPPORTED;
+	int ret = 0;
clock_req.clock_type = amd_pp_mem_clock;
  	clock_req.clock_freq_in_khz = mhz * 1000;
@@ -695,7 +630,10 @@ pp_nv_set_hard_min_uclk_by_freq(struct pp_smu *pp, int mhz)
  	/* 0: successful or smu.ppt_funcs->display_clock_voltage_request = NULL
  	 * 1: fail
  	 */
-	if (pp_funcs->display_clock_voltage_request(pp_handle, &clock_req))
+	ret = amdgpu_dpm_display_clock_voltage_request(adev, &clock_req);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
  		return PP_SMU_RESULT_FAIL;
return PP_SMU_RESULT_OK;
@@ -706,14 +644,10 @@ static enum pp_smu_status pp_nv_set_pstate_handshake_support(
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
- if (pp_funcs && pp_funcs->display_disable_memory_clock_switch) {
-		if (pp_funcs->display_disable_memory_clock_switch(pp_handle,
-								  !pstate_handshake_supported))
-			return PP_SMU_RESULT_FAIL;
-	}
+	if (amdgpu_dpm_display_disable_memory_clock_switch(adev,
+							  !pstate_handshake_supported))
+		return PP_SMU_RESULT_FAIL;
return PP_SMU_RESULT_OK;
  }
@@ -723,12 +657,8 @@ static enum pp_smu_status pp_nv_set_voltage_by_freq(struct pp_smu *pp,
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
  	struct pp_display_clock_request clock_req;
-
-	if (!pp_funcs || !pp_funcs->display_clock_voltage_request)
-		return PP_SMU_RESULT_UNSUPPORTED;
+	int ret = 0;
switch (clock_id) {
  	case PP_SMU_NV_DISPCLK:
@@ -748,7 +678,10 @@ static enum pp_smu_status pp_nv_set_voltage_by_freq(struct pp_smu *pp,
  	/* 0: successful or smu.ppt_funcs->display_clock_voltage_request = NULL
  	 * 1: fail
  	 */
-	if (pp_funcs->display_clock_voltage_request(pp_handle, &clock_req))
+	ret = amdgpu_dpm_display_clock_voltage_request(adev, &clock_req);
+	if (ret == -EOPNOTSUPP)
+		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
  		return PP_SMU_RESULT_FAIL;
return PP_SMU_RESULT_OK;
@@ -759,16 +692,16 @@ static enum pp_smu_status pp_nv_get_maximum_sustainable_clocks(
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+	int ret = 0;
- if (!pp_funcs || !pp_funcs->get_max_sustainable_clocks_by_dc)
+	ret = amdgpu_dpm_get_max_sustainable_clocks_by_dc(adev,
+							  max_clocks);
+	if (ret == -EOPNOTSUPP)
  		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
- if (!pp_funcs->get_max_sustainable_clocks_by_dc(pp_handle, max_clocks))
-		return PP_SMU_RESULT_OK;
-
-	return PP_SMU_RESULT_FAIL;
+	return PP_SMU_RESULT_OK;
  }
static enum pp_smu_status pp_nv_get_uclk_dpm_states(struct pp_smu *pp,
@@ -776,18 +709,17 @@ static enum pp_smu_status pp_nv_get_uclk_dpm_states(struct pp_smu *pp,
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+	int ret = 0;
- if (!pp_funcs || !pp_funcs->get_uclk_dpm_states)
+	ret = amdgpu_dpm_get_uclk_dpm_states(adev,
+					     clock_values_in_khz,
+					    num_states);
+	if (ret == -EOPNOTSUPP)
  		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
- if (!pp_funcs->get_uclk_dpm_states(pp_handle,
-					   clock_values_in_khz,
-					   num_states))
-		return PP_SMU_RESULT_OK;
-
-	return PP_SMU_RESULT_FAIL;
+	return PP_SMU_RESULT_OK;
  }
static enum pp_smu_status pp_rn_get_dpm_clock_table(
@@ -795,16 +727,15 @@ static enum pp_smu_status pp_rn_get_dpm_clock_table(
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+	int ret = 0;
- if (!pp_funcs || !pp_funcs->get_dpm_clock_table)
+	ret = amdgpu_dpm_get_dpm_clock_table(adev, clock_table);
+	if (ret == -EOPNOTSUPP)
  		return PP_SMU_RESULT_UNSUPPORTED;
+	else if (ret)
+		return PP_SMU_RESULT_FAIL;
- if (!pp_funcs->get_dpm_clock_table(pp_handle, clock_table))
-		return PP_SMU_RESULT_OK;
-
-	return PP_SMU_RESULT_FAIL;
+	return PP_SMU_RESULT_OK;
  }
static enum pp_smu_status pp_rn_set_wm_ranges(struct pp_smu *pp,
@@ -812,11 +743,8 @@ static enum pp_smu_status pp_rn_set_wm_ranges(struct pp_smu *pp,
  {
  	const struct dc_context *ctx = pp->dm;
  	struct amdgpu_device *adev = ctx->driver_context;
-	void *pp_handle = adev->powerplay.pp_handle;
-	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
- if (pp_funcs && pp_funcs->set_watermarks_for_clocks_ranges)
-		pp_funcs->set_watermarks_for_clocks_ranges(pp_handle, ranges);
+	amdgpu_dpm_set_watermarks_for_clocks_ranges(adev, ranges);
return PP_SMU_RESULT_OK;
  }
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 2c789eb5d066..3a84c3995f2d 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -1659,6 +1659,14 @@ int amdgpu_dpm_set_soft_freq_range(struct amdgpu_device *adev,
  	}
  }
+int amdgpu_dpm_write_watermarks_table(struct amdgpu_device *adev)
+{
+	if (!is_support_sw_smu(adev))
+		return 0;
+
+	return smu_write_watermarks_table(&adev->smu);
+}
+
  int amdgpu_dpm_wait_for_event(struct amdgpu_device *adev,
  			      enum smu_event_type event,
  			      uint64_t event_arg)
@@ -2158,3 +2166,213 @@ void amdgpu_dpm_stb_debug_fs_init(struct amdgpu_device *adev)
amdgpu_smu_stb_debug_fs_init(adev);
  }
+
+int amdgpu_dpm_display_configuration_change(struct amdgpu_device *adev,
+					    const struct amd_pp_display_configuration *input)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->display_configuration_change)
+		return 0;
+
Same comments as in the other patch. Let the caller decide what to do when operation is not supported.

+	return pp_funcs->display_configuration_change(adev->powerplay.pp_handle,
+						      input);
+}
+
+int amdgpu_dpm_get_clock_by_type(struct amdgpu_device *adev,
+				 enum amd_pp_clock_type type,
+				 struct amd_pp_clocks *clocks)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->get_clock_by_type)
+		return 0;
+
+	return pp_funcs->get_clock_by_type(adev->powerplay.pp_handle,
+					   type,
+					   clocks);
+}
+
+int amdgpu_dpm_get_display_mode_validation_clks(struct amdgpu_device *adev,
+						struct amd_pp_simple_clock_info *clocks)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->get_display_mode_validation_clocks)
+		return 0;
+
+	return pp_funcs->get_display_mode_validation_clocks(adev->powerplay.pp_handle,
+							    clocks);
+}
+
+int amdgpu_dpm_get_clock_by_type_with_latency(struct amdgpu_device *adev,
+					      enum amd_pp_clock_type type,
+					      struct pp_clock_levels_with_latency *clocks)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->get_clock_by_type_with_latency)
+		return 0;
+
+	return pp_funcs->get_clock_by_type_with_latency(adev->powerplay.pp_handle,
+							type,
+							clocks);
+}
+
+int amdgpu_dpm_get_clock_by_type_with_voltage(struct amdgpu_device *adev,
+					      enum amd_pp_clock_type type,
+					      struct pp_clock_levels_with_voltage *clocks)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->get_clock_by_type_with_voltage)
+		return 0;
+
+	return pp_funcs->get_clock_by_type_with_voltage(adev->powerplay.pp_handle,
+							type,
+							clocks);
+}
+
+int amdgpu_dpm_set_watermarks_for_clocks_ranges(struct amdgpu_device *adev,
+					       void *clock_ranges)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->set_watermarks_for_clocks_ranges)
+		return -EOPNOTSUPP;
+
+	return pp_funcs->set_watermarks_for_clocks_ranges(adev->powerplay.pp_handle,
+							  clock_ranges);
+}
+
+int amdgpu_dpm_display_clock_voltage_request(struct amdgpu_device *adev,
+					     struct pp_display_clock_request *clock)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->display_clock_voltage_request)
+		return -EOPNOTSUPP;
+
+	return pp_funcs->display_clock_voltage_request(adev->powerplay.pp_handle,
+						       clock);
+}
+
+int amdgpu_dpm_get_current_clocks(struct amdgpu_device *adev,
+				  struct amd_pp_clock_info *clocks)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->get_current_clocks)
+		return -EOPNOTSUPP;
+
+	return pp_funcs->get_current_clocks(adev->powerplay.pp_handle,
+					    clocks);
+}
+
+void amdgpu_dpm_notify_smu_enable_pwe(struct amdgpu_device *adev)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->notify_smu_enable_pwe)
+		return;
+

These void funcs also need to have valid return value and if operation is not supported, let the caller know. Implementation in a particular context vs when refactored into standalone APIs need not be the same.

Thanks,
Lijo

+	pp_funcs->notify_smu_enable_pwe(adev->powerplay.pp_handle);
+}
+
+int amdgpu_dpm_set_active_display_count(struct amdgpu_device *adev,
+					uint32_t count)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->set_active_display_count)
+		return -EOPNOTSUPP;
+
+	return pp_funcs->set_active_display_count(adev->powerplay.pp_handle,
+						  count);
+}
+
+int amdgpu_dpm_set_min_deep_sleep_dcefclk(struct amdgpu_device *adev,
+					  uint32_t clock)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->set_min_deep_sleep_dcefclk)
+		return -EOPNOTSUPP;
+
+	return pp_funcs->set_min_deep_sleep_dcefclk(adev->powerplay.pp_handle,
+						    clock);
+}
+
+void amdgpu_dpm_set_hard_min_dcefclk_by_freq(struct amdgpu_device *adev,
+					     uint32_t clock)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->set_hard_min_dcefclk_by_freq)
+		return;
+
+	pp_funcs->set_hard_min_dcefclk_by_freq(adev->powerplay.pp_handle,
+					       clock);
+}
+
+void amdgpu_dpm_set_hard_min_fclk_by_freq(struct amdgpu_device *adev,
+					  uint32_t clock)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->set_hard_min_fclk_by_freq)
+		return;
+
+	pp_funcs->set_hard_min_fclk_by_freq(adev->powerplay.pp_handle,
+					    clock);
+}
+
+int amdgpu_dpm_display_disable_memory_clock_switch(struct amdgpu_device *adev,
+						   bool disable_memory_clock_switch)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->display_disable_memory_clock_switch)
+		return 0;
+
+	return pp_funcs->display_disable_memory_clock_switch(adev->powerplay.pp_handle,
+							     disable_memory_clock_switch);
+}
+
+int amdgpu_dpm_get_max_sustainable_clocks_by_dc(struct amdgpu_device *adev,
+						struct pp_smu_nv_clock_table *max_clocks)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->get_max_sustainable_clocks_by_dc)
+		return -EOPNOTSUPP;
+
+	return pp_funcs->get_max_sustainable_clocks_by_dc(adev->powerplay.pp_handle,
+							  max_clocks);
+}
+
+enum pp_smu_status amdgpu_dpm_get_uclk_dpm_states(struct amdgpu_device *adev,
+						  unsigned int *clock_values_in_khz,
+						  unsigned int *num_states)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->get_uclk_dpm_states)
+		return -EOPNOTSUPP;
+
+	return pp_funcs->get_uclk_dpm_states(adev->powerplay.pp_handle,
+					     clock_values_in_khz,
+					     num_states);
+}
+
+int amdgpu_dpm_get_dpm_clock_table(struct amdgpu_device *adev,
+				   struct dpm_clocks *clock_table)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+
+	if (!pp_funcs->get_dpm_clock_table)
+		return -EOPNOTSUPP;
+
+	return pp_funcs->get_dpm_clock_table(adev->powerplay.pp_handle,
+					     clock_table);
+}
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
index 039c40b1d0cb..fea203a79cb4 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
@@ -500,6 +500,7 @@ int amdgpu_dpm_set_soft_freq_range(struct amdgpu_device *adev,
  				        enum pp_clock_type type,
  				        uint32_t min,
  				        uint32_t max);
+int amdgpu_dpm_write_watermarks_table(struct amdgpu_device *adev);
  int amdgpu_dpm_wait_for_event(struct amdgpu_device *adev, enum smu_event_type event,
  		       uint64_t event_arg);
  int amdgpu_dpm_get_status_gfxoff(struct amdgpu_device *adev, uint32_t *value);
@@ -578,4 +579,41 @@ int amdgpu_dpm_set_pp_table(struct amdgpu_device *adev,
  			    size_t size);
  int amdgpu_dpm_get_num_cpu_cores(struct amdgpu_device *adev);
  void amdgpu_dpm_stb_debug_fs_init(struct amdgpu_device *adev);
+int amdgpu_dpm_display_configuration_change(struct amdgpu_device *adev,
+					    const struct amd_pp_display_configuration *input);
+int amdgpu_dpm_get_clock_by_type(struct amdgpu_device *adev,
+				 enum amd_pp_clock_type type,
+				 struct amd_pp_clocks *clocks);
+int amdgpu_dpm_get_display_mode_validation_clks(struct amdgpu_device *adev,
+						struct amd_pp_simple_clock_info *clocks);
+int amdgpu_dpm_get_clock_by_type_with_latency(struct amdgpu_device *adev,
+					      enum amd_pp_clock_type type,
+					      struct pp_clock_levels_with_latency *clocks);
+int amdgpu_dpm_get_clock_by_type_with_voltage(struct amdgpu_device *adev,
+					      enum amd_pp_clock_type type,
+					      struct pp_clock_levels_with_voltage *clocks);
+int amdgpu_dpm_set_watermarks_for_clocks_ranges(struct amdgpu_device *adev,
+					       void *clock_ranges);
+int amdgpu_dpm_display_clock_voltage_request(struct amdgpu_device *adev,
+					     struct pp_display_clock_request *clock);
+int amdgpu_dpm_get_current_clocks(struct amdgpu_device *adev,
+				  struct amd_pp_clock_info *clocks);
+void amdgpu_dpm_notify_smu_enable_pwe(struct amdgpu_device *adev);
+int amdgpu_dpm_set_active_display_count(struct amdgpu_device *adev,
+					uint32_t count);
+int amdgpu_dpm_set_min_deep_sleep_dcefclk(struct amdgpu_device *adev,
+					  uint32_t clock);
+void amdgpu_dpm_set_hard_min_dcefclk_by_freq(struct amdgpu_device *adev,
+					     uint32_t clock);
+void amdgpu_dpm_set_hard_min_fclk_by_freq(struct amdgpu_device *adev,
+					  uint32_t clock);
+int amdgpu_dpm_display_disable_memory_clock_switch(struct amdgpu_device *adev,
+						   bool disable_memory_clock_switch);
+int amdgpu_dpm_get_max_sustainable_clocks_by_dc(struct amdgpu_device *adev,
+						struct pp_smu_nv_clock_table *max_clocks);
+enum pp_smu_status amdgpu_dpm_get_uclk_dpm_states(struct amdgpu_device *adev,
+						  unsigned int *clock_values_in_khz,
+						  unsigned int *num_states);
+int amdgpu_dpm_get_dpm_clock_table(struct amdgpu_device *adev,
+				   struct dpm_clocks *clock_table);
  #endif




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