[PATCH] drm/amd/powerplay: add profile mode for vega10.

Rex Zhu Rex.Zhu at amd.com
Wed Jul 12 11:30:04 UTC 2017


Change-Id: I9d69d4fc503acf458b62bf2b79dc839e8b0df5a1
Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 130 +++++++++++++++++----
 drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.h |   4 +
 2 files changed, 109 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index ae11d30..0711be7 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -77,6 +77,8 @@
 #define DF_CS_AON0_DramBaseAddress0__IntLvNumChan_MASK                                                        0x000000F0L
 #define DF_CS_AON0_DramBaseAddress0__IntLvAddrSel_MASK                                                        0x00000700L
 #define DF_CS_AON0_DramBaseAddress0__DramBaseAddr_MASK                                                        0xFFFFF000L
+static int vega10_force_clock_level(struct pp_hwmgr *hwmgr,
+		enum pp_clock_type type, uint32_t mask);
 
 const ULONG PhwVega10_Magic = (ULONG)(PHM_VIslands_Magic);
 
@@ -4223,34 +4225,30 @@ static int vega10_unforce_dpm_levels(struct pp_hwmgr *hwmgr)
 	return 0;
 }
 
-static int vega10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
-				enum amd_dpm_forced_level level)
+static int vega10_get_profiling_clk_mask(struct pp_hwmgr *hwmgr, enum amd_dpm_forced_level level,
+				uint32_t *sclk_mask, uint32_t *mclk_mask, uint32_t *soc_mask)
 {
-	int ret = 0;
+	struct phm_ppt_v2_information *table_info =
+			(struct phm_ppt_v2_information *)(hwmgr->pptable);
 
-	switch (level) {
-	case AMD_DPM_FORCED_LEVEL_HIGH:
-		ret = vega10_force_dpm_highest(hwmgr);
-		if (ret)
-			return ret;
-		break;
-	case AMD_DPM_FORCED_LEVEL_LOW:
-		ret = vega10_force_dpm_lowest(hwmgr);
-		if (ret)
-			return ret;
-		break;
-	case AMD_DPM_FORCED_LEVEL_AUTO:
-		ret = vega10_unforce_dpm_levels(hwmgr);
-		if (ret)
-			return ret;
-		break;
-	default:
-		break;
+	if (table_info->vdd_dep_on_sclk->count > VEGA10_UMD_PSTATE_GFXCLK_LEVEL &&
+		table_info->vdd_dep_on_socclk->count > VEGA10_UMD_PSTATE_SOCCLK_LEVEL &&
+		table_info->vdd_dep_on_mclk->count > VEGA10_UMD_PSTATE_MCLK_LEVEL) {
+		*sclk_mask = VEGA10_UMD_PSTATE_GFXCLK_LEVEL;
+		*soc_mask = VEGA10_UMD_PSTATE_SOCCLK_LEVEL;
+		*mclk_mask = VEGA10_UMD_PSTATE_MCLK_LEVEL;
 	}
 
-	hwmgr->dpm_level = level;
-
-	return ret;
+	if (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK) {
+		*sclk_mask = 0;
+	} else if (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK) {
+		*mclk_mask = 0;
+	} else if (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) {
+		*sclk_mask = table_info->vdd_dep_on_sclk->count - 1;
+		*soc_mask = table_info->vdd_dep_on_socclk->count - 1;
+		*mclk_mask = table_info->vdd_dep_on_mclk->count - 1;
+	}
+	return 0;
 }
 
 static int vega10_set_fan_control_mode(struct pp_hwmgr *hwmgr, uint32_t mode)
@@ -4277,6 +4275,86 @@ static int vega10_set_fan_control_mode(struct pp_hwmgr *hwmgr, uint32_t mode)
 	return result;
 }
 
+static int vega10_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
+				enum amd_dpm_forced_level level)
+{
+	int ret = 0;
+	uint32_t sclk_mask = 0;
+	uint32_t mclk_mask = 0;
+	uint32_t soc_mask = 0;
+	uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
+					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
+					AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
+					AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
+
+	if (level == hwmgr->dpm_level)
+		return ret;
+
+	if (!(hwmgr->dpm_level & profile_mode_mask)) {
+		/* enter profile mode, save current level, disable gfx cg*/
+		if (level & profile_mode_mask) {
+			hwmgr->saved_dpm_level = hwmgr->dpm_level;
+			cgs_set_clockgating_state(hwmgr->device,
+						AMD_IP_BLOCK_TYPE_GFX,
+						AMD_CG_STATE_UNGATE);
+		}
+	} else {
+		/* exit profile mode, restore level, enable gfx cg*/
+		if (!(level & profile_mode_mask)) {
+			if (level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)
+				level = hwmgr->saved_dpm_level;
+			cgs_set_clockgating_state(hwmgr->device,
+					AMD_IP_BLOCK_TYPE_GFX,
+					AMD_CG_STATE_GATE);
+		}
+	}
+
+	switch (level) {
+	case AMD_DPM_FORCED_LEVEL_HIGH:
+		ret = vega10_force_dpm_highest(hwmgr);
+		if (ret)
+			return ret;
+		hwmgr->dpm_level = level;
+		break;
+	case AMD_DPM_FORCED_LEVEL_LOW:
+		ret = vega10_force_dpm_lowest(hwmgr);
+		if (ret)
+			return ret;
+		hwmgr->dpm_level = level;
+		break;
+	case AMD_DPM_FORCED_LEVEL_AUTO:
+		ret = vega10_unforce_dpm_levels(hwmgr);
+		if (ret)
+			return ret;
+		hwmgr->dpm_level = level;
+		break;
+	case AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD:
+	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK:
+	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK:
+	case AMD_DPM_FORCED_LEVEL_PROFILE_PEAK:
+		ret = vega10_get_profiling_clk_mask(hwmgr, level, &sclk_mask, &mclk_mask, &soc_mask);
+		if (ret)
+			return ret;
+		hwmgr->dpm_level = level;
+		vega10_force_clock_level(hwmgr, PP_SCLK, 1<<sclk_mask);
+		vega10_force_clock_level(hwmgr, PP_MCLK, 1<<mclk_mask);
+		break;
+	case AMD_DPM_FORCED_LEVEL_MANUAL:
+		hwmgr->dpm_level = level;
+		break;
+	case AMD_DPM_FORCED_LEVEL_PROFILE_EXIT:
+	default:
+		break;
+	}
+
+	if (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->saved_dpm_level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
+		vega10_set_fan_control_mode(hwmgr, AMD_FAN_CTRL_NONE);
+	else if (level != AMD_DPM_FORCED_LEVEL_PROFILE_PEAK && hwmgr->saved_dpm_level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK)
+		vega10_set_fan_control_mode(hwmgr, AMD_FAN_CTRL_AUTO);
+
+	return 0;
+}
+
 static int vega10_get_fan_control_mode(struct pp_hwmgr *hwmgr)
 {
 	struct vega10_hwmgr *data = (struct vega10_hwmgr *)(hwmgr->backend);
@@ -4522,7 +4600,9 @@ static int vega10_force_clock_level(struct pp_hwmgr *hwmgr,
 	struct vega10_hwmgr *data = (struct vega10_hwmgr *)(hwmgr->backend);
 	int i;
 
-	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
+	if (hwmgr->dpm_level & (AMD_DPM_FORCED_LEVEL_AUTO |
+				AMD_DPM_FORCED_LEVEL_LOW |
+				AMD_DPM_FORCED_LEVEL_HIGH))
 		return -EINVAL;
 
 	switch (type) {
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.h b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.h
index 5c97a8b..676cd77 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.h
@@ -434,6 +434,10 @@ struct vega10_hwmgr {
 #define PPVEGA10_VEGA10UCLKCLKAVERAGEALPHA_DFLT      25 /* 10% * 255 = 25 */
 #define PPVEGA10_VEGA10GFXACTIVITYAVERAGEALPHA_DFLT  25 /* 10% * 255 = 25 */
 
+#define VEGA10_UMD_PSTATE_GFXCLK_LEVEL         0x3
+#define VEGA10_UMD_PSTATE_SOCCLK_LEVEL         0x3
+#define VEGA10_UMD_PSTATE_MCLK_LEVEL           0x2
+
 extern int tonga_initializa_dynamic_state_adjustment_rule_settings(struct pp_hwmgr *hwmgr);
 extern int tonga_hwmgr_backend_fini(struct pp_hwmgr *hwmgr);
 extern int tonga_get_mc_microcode_version (struct pp_hwmgr *hwmgr);
-- 
1.9.1



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