path: root/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/1491-drm-amd-powerplay-support-sysfs-to-set-socclk-fclk-d.patch

From 8b1ab067a8d3b5351a6c2baafb01f60ba7910b18 Mon Sep 17 00:00:00 2001
From: Likun Gao <Likun.Gao@amd.com>
Date: Wed, 20 Feb 2019 13:42:55 +0800
Subject: [PATCH 1491/2940] drm/amd/powerplay: support sysfs to set socclk,
 fclk, dcefclk

Add sys interface to set socclk, fclk and dcefclk for smu.
Add feature_mask parameter for smu_upload_dpm_level as socclk, fclk and
dcefclk have dependency, without feature_mask to point out specific clk
will make it fail to set some clk.
Fix the function of smu_unforce_dpm_levels.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Gui Chengming <Jack.Gui@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c        |  12 +-
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c    |  19 --
 .../gpu/drm/amd/powerplay/inc/amdgpu_smu.h    |  10 +-
 drivers/gpu/drm/amd/powerplay/vega20_ppt.c    | 195 +++++++++++++++++-
 4 files changed, 201 insertions(+), 35 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 99309153fb9e..e05108ed1a2b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -928,7 +928,9 @@ static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev,
 	if (ret)
 		return ret;
 
-	if (adev->powerplay.pp_funcs->force_clock_level)
+	if (is_support_sw_smu(adev))
+		ret = smu_force_clk_levels(&adev->smu, PP_SOCCLK, mask);
+	else if (adev->powerplay.pp_funcs->force_clock_level)
 		ret = amdgpu_dpm_force_clock_level(adev, PP_SOCCLK, mask);
 
 	if (ret)
@@ -966,7 +968,9 @@ static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev,
 	if (ret)
 		return ret;
 
-	if (adev->powerplay.pp_funcs->force_clock_level)
+	if (is_support_sw_smu(adev))
+		ret = smu_force_clk_levels(&adev->smu, PP_FCLK, mask);
+	else if (adev->powerplay.pp_funcs->force_clock_level)
 		ret = amdgpu_dpm_force_clock_level(adev, PP_FCLK, mask);
 
 	if (ret)
@@ -1004,7 +1008,9 @@ static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev,
 	if (ret)
 		return ret;
 
-	if (adev->powerplay.pp_funcs->force_clock_level)
+	if (is_support_sw_smu(adev))
+		ret = smu_force_clk_levels(&adev->smu, PP_DCEFCLK, mask);
+	else if (adev->powerplay.pp_funcs->force_clock_level)
 		ret = amdgpu_dpm_force_clock_level(adev, PP_DCEFCLK, mask);
 
 	if (ret)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 231cce90763d..f5d6caf11ca3 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -1062,25 +1062,6 @@ static int smu_enable_umd_pstate(void *handle,
 	return 0;
 }
 
-int smu_unforce_dpm_levels(struct smu_context *smu)
-{
-	int ret = 0;
-
-	ret = smu_upload_dpm_level(smu, false);
-	if (ret) {
-		pr_err("Failed to upload DPM Bootup Levels!");
-		return ret;
-	}
-
-	ret = smu_upload_dpm_level(smu, true);
-	if (ret) {
-		pr_err("Failed to upload DPM Max Levels!");
-		return ret;
-	}
-
-	return ret;
-}
-
 int smu_adjust_power_state_dynamic(struct smu_context *smu,
 				   enum amd_dpm_forced_level level,
 				   bool skip_display_settings)
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index feb24f2b3a14..8fdad32cf94a 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -445,7 +445,9 @@ struct pptable_funcs {
 	int (*apply_clocks_adjust_rules)(struct smu_context *smu);
 	int (*notify_smc_dispaly_config)(struct smu_context *smu);
 	int (*force_dpm_limit_value)(struct smu_context *smu, bool highest);
-	int (*upload_dpm_level)(struct smu_context *smu, bool max);
+	int (*unforce_dpm_levels)(struct smu_context *smu);
+	int (*upload_dpm_level)(struct smu_context *smu, bool max,
+				uint32_t feature_mask);
 	int (*get_profiling_clk_mask)(struct smu_context *smu,
 				      enum amd_dpm_forced_level level,
 				      uint32_t *sclk_mask,
@@ -666,8 +668,10 @@ struct smu_funcs
 	((smu)->ppt_funcs->notify_smc_dispaly_config ? (smu)->ppt_funcs->notify_smc_dispaly_config((smu)) : 0)
 #define smu_force_dpm_limit_value(smu, highest) \
 	((smu)->ppt_funcs->force_dpm_limit_value ? (smu)->ppt_funcs->force_dpm_limit_value((smu), (highest)) : 0)
-#define smu_upload_dpm_level(smu, max) \
-	((smu)->ppt_funcs->upload_dpm_level ? (smu)->ppt_funcs->upload_dpm_level((smu), (max)) : 0)
+#define smu_unforce_dpm_levels(smu) \
+	((smu)->ppt_funcs->unforce_dpm_levels ? (smu)->ppt_funcs->unforce_dpm_levels((smu)) : 0)
+#define smu_upload_dpm_level(smu, max, feature_mask) \
+	((smu)->ppt_funcs->upload_dpm_level ? (smu)->ppt_funcs->upload_dpm_level((smu), (max), (feature_mask)) : 0)
 #define smu_get_profiling_clk_mask(smu, level, sclk_mask, mclk_mask, soc_mask) \
 	((smu)->ppt_funcs->get_profiling_clk_mask ? (smu)->ppt_funcs->get_profiling_clk_mask((smu), (level), (sclk_mask), (mclk_mask), (soc_mask)) : 0)
 #define smu_set_cpu_power_state(smu) \
diff --git a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
index 88803ad2cdd8..fa65b7509bc4 100644
--- a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
@@ -931,7 +931,8 @@ static int vega20_print_clk_levels(struct smu_context *smu,
 	return size;
 }
 
-static int vega20_upload_dpm_level(struct smu_context *smu, bool max)
+static int vega20_upload_dpm_level(struct smu_context *smu, bool max,
+				   uint32_t feature_mask)
 {
 	struct vega20_dpm_table *dpm_table;
 	struct vega20_single_dpm_table *single_dpm_table;
@@ -940,7 +941,8 @@ static int vega20_upload_dpm_level(struct smu_context *smu, bool max)
 
 	dpm_table = smu->smu_dpm.dpm_context;
 
-	if (smu_feature_is_enabled(smu, FEATURE_DPM_GFXCLK_BIT)) {
+	if (smu_feature_is_enabled(smu, FEATURE_DPM_GFXCLK_BIT) &&
+	    (feature_mask & FEATURE_DPM_GFXCLK_MASK)) {
 		single_dpm_table = &(dpm_table->gfx_table);
 		freq = max ? single_dpm_table->dpm_state.soft_max_level :
 			single_dpm_table->dpm_state.soft_min_level;
@@ -954,7 +956,8 @@ static int vega20_upload_dpm_level(struct smu_context *smu, bool max)
 		}
 	}
 
-	if (smu_feature_is_enabled(smu, FEATURE_DPM_UCLK_BIT)) {
+	if (smu_feature_is_enabled(smu, FEATURE_DPM_UCLK_BIT) &&
+	    (feature_mask & FEATURE_DPM_UCLK_MASK)) {
 		single_dpm_table = &(dpm_table->mem_table);
 		freq = max ? single_dpm_table->dpm_state.soft_max_level :
 			single_dpm_table->dpm_state.soft_min_level;
@@ -968,6 +971,51 @@ static int vega20_upload_dpm_level(struct smu_context *smu, bool max)
 		}
 	}
 
+	if (smu_feature_is_enabled(smu, FEATURE_DPM_SOCCLK_BIT) &&
+	    (feature_mask & FEATURE_DPM_SOCCLK_MASK)) {
+		single_dpm_table = &(dpm_table->soc_table);
+		freq = max ? single_dpm_table->dpm_state.soft_max_level :
+			single_dpm_table->dpm_state.soft_min_level;
+		ret = smu_send_smc_msg_with_param(smu,
+			(max ? SMU_MSG_SetSoftMaxByFreq : SMU_MSG_SetSoftMinByFreq),
+			(PPCLK_SOCCLK << 16) | (freq & 0xffff));
+		if (ret) {
+			pr_err("Failed to set soft %s socclk !\n",
+						max ? "max" : "min");
+			return ret;
+		}
+	}
+
+	if (smu_feature_is_enabled(smu, FEATURE_DPM_FCLK_BIT) &&
+	    (feature_mask & FEATURE_DPM_FCLK_MASK)) {
+		single_dpm_table = &(dpm_table->fclk_table);
+		freq = max ? single_dpm_table->dpm_state.soft_max_level :
+			single_dpm_table->dpm_state.soft_min_level;
+		ret = smu_send_smc_msg_with_param(smu,
+			(max ? SMU_MSG_SetSoftMaxByFreq : SMU_MSG_SetSoftMinByFreq),
+			(PPCLK_FCLK << 16) | (freq & 0xffff));
+		if (ret) {
+			pr_err("Failed to set soft %s fclk !\n",
+						max ? "max" : "min");
+			return ret;
+		}
+	}
+
+	if (smu_feature_is_enabled(smu, FEATURE_DPM_DCEFCLK_BIT) &&
+	    (feature_mask & FEATURE_DPM_DCEFCLK_MASK)) {
+		single_dpm_table = &(dpm_table->dcef_table);
+		freq = single_dpm_table->dpm_state.hard_min_level;
+		if (!max) {
+			ret = smu_send_smc_msg_with_param(smu,
+				SMU_MSG_SetHardMinByFreq,
+				(PPCLK_DCEFCLK << 16) | (freq & 0xffff));
+			if (ret) {
+				pr_err("Failed to set hard min dcefclk !\n");
+				return ret;
+			}
+		}
+	}
+
 	return ret;
 }
 
@@ -976,7 +1024,7 @@ static int vega20_force_clk_levels(struct smu_context *smu,
 {
 	struct vega20_dpm_table *dpm_table;
 	struct vega20_single_dpm_table *single_dpm_table;
-	uint32_t soft_min_level, soft_max_level;
+	uint32_t soft_min_level, soft_max_level, hard_min_level;
 	struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
 	int ret = 0;
 
@@ -1008,13 +1056,13 @@ static int vega20_force_clk_levels(struct smu_context *smu,
 		single_dpm_table->dpm_state.soft_max_level =
 			single_dpm_table->dpm_levels[soft_max_level].value;
 
-		ret = vega20_upload_dpm_level(smu, false);
+		ret = vega20_upload_dpm_level(smu, false, FEATURE_DPM_GFXCLK_MASK);
 		if (ret) {
 			pr_err("Failed to upload boot level to lowest!\n");
 			break;
 		}
 
-		ret = vega20_upload_dpm_level(smu, true);
+		ret = vega20_upload_dpm_level(smu, true, FEATURE_DPM_GFXCLK_MASK);
 		if (ret)
 			pr_err("Failed to upload dpm max level to highest!\n");
 
@@ -1035,18 +1083,92 @@ static int vega20_force_clk_levels(struct smu_context *smu,
 		single_dpm_table->dpm_state.soft_max_level =
 			single_dpm_table->dpm_levels[soft_max_level].value;
 
-		ret = vega20_upload_dpm_level(smu, false);
+		ret = vega20_upload_dpm_level(smu, false, FEATURE_DPM_UCLK_MASK);
+		if (ret) {
+			pr_err("Failed to upload boot level to lowest!\n");
+			break;
+		}
+
+		ret = vega20_upload_dpm_level(smu, true, FEATURE_DPM_UCLK_MASK);
+		if (ret)
+			pr_err("Failed to upload dpm max level to highest!\n");
+
+		break;
+
+	case PP_SOCCLK:
+		single_dpm_table = &(dpm_table->soc_table);
+
+		if (soft_max_level >= single_dpm_table->count) {
+			pr_err("Clock level specified %d is over max allowed %d\n",
+					soft_max_level, single_dpm_table->count - 1);
+			ret = -EINVAL;
+			break;
+		}
+
+		single_dpm_table->dpm_state.soft_min_level =
+			single_dpm_table->dpm_levels[soft_min_level].value;
+		single_dpm_table->dpm_state.soft_max_level =
+			single_dpm_table->dpm_levels[soft_max_level].value;
+
+		ret = vega20_upload_dpm_level(smu, false, FEATURE_DPM_SOCCLK_MASK);
 		if (ret) {
 			pr_err("Failed to upload boot level to lowest!\n");
 			break;
 		}
 
-		ret = vega20_upload_dpm_level(smu, true);
+		ret = vega20_upload_dpm_level(smu, true, FEATURE_DPM_SOCCLK_MASK);
 		if (ret)
 			pr_err("Failed to upload dpm max level to highest!\n");
 
 		break;
 
+	case PP_FCLK:
+		single_dpm_table = &(dpm_table->fclk_table);
+
+		if (soft_max_level >= single_dpm_table->count) {
+			pr_err("Clock level specified %d is over max allowed %d\n",
+					soft_max_level, single_dpm_table->count - 1);
+			ret = -EINVAL;
+			break;
+		}
+
+		single_dpm_table->dpm_state.soft_min_level =
+			single_dpm_table->dpm_levels[soft_min_level].value;
+		single_dpm_table->dpm_state.soft_max_level =
+			single_dpm_table->dpm_levels[soft_max_level].value;
+
+		ret = vega20_upload_dpm_level(smu, false, FEATURE_DPM_FCLK_MASK);
+		if (ret) {
+			pr_err("Failed to upload boot level to lowest!\n");
+			break;
+		}
+
+		ret = vega20_upload_dpm_level(smu, true, FEATURE_DPM_FCLK_MASK);
+		if (ret)
+			pr_err("Failed to upload dpm max level to highest!\n");
+
+		break;
+
+	case PP_DCEFCLK:
+		hard_min_level = soft_min_level;
+		single_dpm_table = &(dpm_table->dcef_table);
+
+		if (hard_min_level >= single_dpm_table->count) {
+			pr_err("Clock level specified %d is over max allowed %d\n",
+					hard_min_level, single_dpm_table->count - 1);
+			ret = -EINVAL;
+			break;
+		}
+
+		single_dpm_table->dpm_state.hard_min_level =
+			single_dpm_table->dpm_levels[hard_min_level].value;
+
+		ret = vega20_upload_dpm_level(smu, false, FEATURE_DPM_DCEFCLK_MASK);
+		if (ret)
+			pr_err("Failed to upload boot level to lowest!\n");
+
+		break;
+
 	case PP_PCIE:
 		break;
 
@@ -1722,14 +1844,23 @@ static int vega20_force_dpm_limit_value(struct smu_context *smu, bool highest)
 		dpm_table->mem_table.dpm_state.soft_max_level =
 		dpm_table->mem_table.dpm_levels[soft_level].value;
 
-	ret = vega20_upload_dpm_level(smu, false);
+	if (highest)
+		soft_level = vega20_find_highest_dpm_level(&(dpm_table->soc_table));
+	else
+		soft_level = vega20_find_lowest_dpm_level(&(dpm_table->soc_table));
+
+	dpm_table->soc_table.dpm_state.soft_min_level =
+		dpm_table->soc_table.dpm_state.soft_max_level =
+		dpm_table->soc_table.dpm_levels[soft_level].value;
+
+	ret = vega20_upload_dpm_level(smu, false, 0xFFFFFFFF);
 	if (ret) {
 		pr_err("Failed to upload boot level to %s!\n",
 				highest ? "highest" : "lowest");
 		return ret;
 	}
 
-	ret = vega20_upload_dpm_level(smu, true);
+	ret = vega20_upload_dpm_level(smu, true, 0xFFFFFFFF);
 	if (ret) {
 		pr_err("Failed to upload dpm max level to %s!\n!",
 				highest ? "highest" : "lowest");
@@ -1739,6 +1870,49 @@ static int vega20_force_dpm_limit_value(struct smu_context *smu, bool highest)
 	return ret;
 }
 
+static int vega20_unforce_dpm_levels(struct smu_context *smu)
+{
+	uint32_t soft_min_level, soft_max_level;
+	int ret = 0;
+	struct vega20_dpm_table *dpm_table =
+		(struct vega20_dpm_table *)smu->smu_dpm.dpm_context;
+
+	soft_min_level = vega20_find_lowest_dpm_level(&(dpm_table->gfx_table));
+	soft_max_level = vega20_find_highest_dpm_level(&(dpm_table->gfx_table));
+	dpm_table->gfx_table.dpm_state.soft_min_level =
+		dpm_table->gfx_table.dpm_levels[soft_min_level].value;
+	dpm_table->gfx_table.dpm_state.soft_max_level =
+		dpm_table->gfx_table.dpm_levels[soft_max_level].value;
+
+	soft_min_level = vega20_find_lowest_dpm_level(&(dpm_table->mem_table));
+	soft_max_level = vega20_find_highest_dpm_level(&(dpm_table->mem_table));
+	dpm_table->mem_table.dpm_state.soft_min_level =
+		dpm_table->gfx_table.dpm_levels[soft_min_level].value;
+	dpm_table->mem_table.dpm_state.soft_max_level =
+		dpm_table->gfx_table.dpm_levels[soft_max_level].value;
+
+	soft_min_level = vega20_find_lowest_dpm_level(&(dpm_table->soc_table));
+	soft_max_level = vega20_find_highest_dpm_level(&(dpm_table->soc_table));
+	dpm_table->soc_table.dpm_state.soft_min_level =
+		dpm_table->soc_table.dpm_levels[soft_min_level].value;
+	dpm_table->soc_table.dpm_state.soft_max_level =
+		dpm_table->soc_table.dpm_levels[soft_max_level].value;
+
+	ret = smu_upload_dpm_level(smu, false, 0xFFFFFFFF);
+	if (ret) {
+		pr_err("Failed to upload DPM Bootup Levels!");
+		return ret;
+	}
+
+	ret = smu_upload_dpm_level(smu, true, 0xFFFFFFFF);
+	if (ret) {
+		pr_err("Failed to upload DPM Max Levels!");
+		return ret;
+	}
+
+	return ret;
+}
+
 static enum amd_dpm_forced_level vega20_get_performance_level(struct smu_context *smu)
 {
 	struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
@@ -2186,6 +2360,7 @@ static const struct pptable_funcs vega20_ppt_funcs = {
 	.apply_clocks_adjust_rules = vega20_apply_clocks_adjust_rules,
 	.notify_smc_dispaly_config = vega20_notify_smc_dispaly_config,
 	.force_dpm_limit_value = vega20_force_dpm_limit_value,
+	.unforce_dpm_levels = vega20_unforce_dpm_levels,
 	.upload_dpm_level = vega20_upload_dpm_level,
 	.get_profiling_clk_mask = vega20_get_profiling_clk_mask,
 };
-- 
2.17.1