[PATCH 3/4] drm/amd/powerplay: move VI common AVFS code to smu7_smumgr.c

Rex Zhu Rex.Zhu at amd.com
Mon Jul 3 10:13:32 UTC 2017


Change-Id: I2bee3e700281a57ad77132794187ef45d2d79dcd
Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
---
 drivers/gpu/drm/amd/powerplay/inc/smumgr.h         |  3 +
 drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c    |  6 +-
 drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c | 73 ++++++++++------------
 drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.h | 11 ----
 .../gpu/drm/amd/powerplay/smumgr/polaris10_smc.c   |  4 +-
 .../drm/amd/powerplay/smumgr/polaris10_smumgr.c    | 29 ++++-----
 .../drm/amd/powerplay/smumgr/polaris10_smumgr.h    | 12 +---
 drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c |  6 +-
 drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.h |  8 ++-
 drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c      |  8 +++
 10 files changed, 74 insertions(+), 86 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/inc/smumgr.h b/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
index 976e942..5d61cc9 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
@@ -131,6 +131,7 @@ struct pp_smumgr_func {
 	bool (*is_dpm_running)(struct pp_hwmgr *hwmgr);
 	int (*populate_requested_graphic_levels)(struct pp_hwmgr *hwmgr,
 			struct amd_pp_profile *request);
+	bool (*is_hw_avfs_present)(struct pp_smumgr *smumgr);
 };
 
 struct pp_smumgr {
@@ -202,6 +203,8 @@ extern uint32_t smum_get_offsetof(struct pp_smumgr *smumgr,
 extern int smum_populate_requested_graphic_levels(struct pp_hwmgr *hwmgr,
 		struct amd_pp_profile *request);
 
+extern bool smum_is_hw_avfs_present(struct pp_smumgr *smumgr);
+
 #define SMUM_FIELD_SHIFT(reg, field) reg##__##field##__SHIFT
 
 #define SMUM_FIELD_MASK(reg, field) reg##__##field##_MASK
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c
index ca24e15..0750530 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smc.c
@@ -2134,16 +2134,16 @@ int fiji_thermal_avfs_enable(struct pp_hwmgr *hwmgr)
 {
 	int ret;
 	struct pp_smumgr *smumgr = (struct pp_smumgr *)(hwmgr->smumgr);
-	struct fiji_smumgr *smu_data = (struct fiji_smumgr *)(smumgr->backend);
+	struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(smumgr->backend);
 
-	if (smu_data->avfs.AvfsBtcStatus != AVFS_BTC_ENABLEAVFS)
+	if (smu_data->avfs.avfs_btc_param != AVFS_BTC_ENABLEAVFS)
 		return 0;
 
 	ret = smum_send_msg_to_smc(smumgr, PPSMC_MSG_EnableAvfs);
 
 	if (!ret)
 		/* If this param is not changed, this function could fire unnecessarily */
-		smu_data->avfs.AvfsBtcStatus = AVFS_BTC_COMPLETED_PREVIOUSLY;
+		smu_data->avfs.avfs_btc_param = AVFS_BTC_COMPLETED_PREVIOUSLY;
 
 	return ret;
 }
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
index 719e885..492f682 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
@@ -161,43 +161,46 @@ static int fiji_start_smu_in_non_protection_mode(struct pp_smumgr *smumgr)
 
 static int fiji_setup_pwr_virus(struct pp_smumgr *smumgr)
 {
-	int i, result = -1;
+	int i;
+	int result = -EINVAL;
 	uint32_t reg, data;
-	const PWR_Command_Table *virus = PwrVirusTable;
-	struct fiji_smumgr *priv = (struct fiji_smumgr *)(smumgr->backend);
 
-	priv->avfs.AvfsBtcStatus = AVFS_LOAD_VIRUS;
-	for (i = 0; (i < PWR_VIRUS_TABLE_SIZE); i++) {
-		switch (virus->command) {
+	const PWR_Command_Table *pvirus = PwrVirusTable;
+	struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(smumgr->backend);
+
+	for (i = 0; i < PWR_VIRUS_TABLE_SIZE; i++) {
+		switch (pvirus->command) {
 		case PwrCmdWrite:
-			reg  = virus->reg;
-			data = virus->data;
+			reg  = pvirus->reg;
+			data = pvirus->data;
 			cgs_write_register(smumgr->device, reg, data);
 			break;
+
 		case PwrCmdEnd:
-			priv->avfs.AvfsBtcStatus = AVFS_BTC_VIRUS_LOADED;
 			result = 0;
 			break;
+
 		default:
-			pr_err("Table Exit with Invalid Command!");
-			priv->avfs.AvfsBtcStatus = AVFS_BTC_VIRUS_FAIL;
-			result = -1;
+			pr_info("Table Exit with Invalid Command!");
+			smu_data->avfs.avfs_btc_status = AVFS_BTC_VIRUS_FAIL;
+			result = -EINVAL;
 			break;
 		}
-		virus++;
+		pvirus++;
 	}
+
 	return result;
 }
 
 static int fiji_start_avfs_btc(struct pp_smumgr *smumgr)
 {
 	int result = 0;
-	struct fiji_smumgr *priv = (struct fiji_smumgr *)(smumgr->backend);
+	struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(smumgr->backend);
 
-	if (priv->avfs.AvfsBtcParam) {
-		if (!smum_send_msg_to_smc_with_parameter(smumgr,
-				PPSMC_MSG_PerformBtc, priv->avfs.AvfsBtcParam)) {
-			pr_err("PerformBTC SMU msg failed \n");
+	if (0 != smu_data->avfs.avfs_btc_param) {
+		if (0 != smu7_send_msg_to_smc_with_parameter(smumgr,
+				PPSMC_MSG_PerformBtc, smu_data->avfs.avfs_btc_param)) {
+			pr_info("[AVFS][SmuPolaris10_PerformBtc] PerformBTC SMU msg failed");
 			result = -1;
 		}
 	}
@@ -252,39 +255,39 @@ static int fiji_setup_graphics_level_structure(struct pp_smumgr *smumgr)
 
 static int fiji_avfs_event_mgr(struct pp_smumgr *smumgr, bool smu_started)
 {
-	struct fiji_smumgr *priv = (struct fiji_smumgr *)(smumgr->backend);
+	struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(smumgr->backend);
 
-	switch (priv->avfs.AvfsBtcStatus) {
+	switch (smu_data->avfs.avfs_btc_param) {
 	case AVFS_BTC_COMPLETED_PREVIOUSLY:
 		break;
 
 	case AVFS_BTC_BOOT: /*Cold Boot State - Post SMU Start*/
 		if (!smu_started)
 			break;
-		priv->avfs.AvfsBtcStatus = AVFS_BTC_FAILED;
+		smu_data->avfs.avfs_btc_param = AVFS_BTC_FAILED;
 		PP_ASSERT_WITH_CODE(0 == fiji_setup_graphics_level_structure(smumgr),
 				"[AVFS][fiji_avfs_event_mgr] Could not Copy Graphics Level"
 				" table over to SMU",
-				return -1;);
-		priv->avfs.AvfsBtcStatus = AVFS_BTC_VIRUS_FAIL;
+				return -EINVAL;);
+		smu_data->avfs.avfs_btc_param = AVFS_BTC_VIRUS_FAIL;
 		PP_ASSERT_WITH_CODE(0 == fiji_setup_pwr_virus(smumgr),
 				"[AVFS][fiji_avfs_event_mgr] Could not setup "
 				"Pwr Virus for AVFS ",
-				return -1;);
-		priv->avfs.AvfsBtcStatus = AVFS_BTC_FAILED;
+				return -EINVAL;);
+		smu_data->avfs.avfs_btc_param = AVFS_BTC_FAILED;
 		PP_ASSERT_WITH_CODE(0 == fiji_start_avfs_btc(smumgr),
 				"[AVFS][fiji_avfs_event_mgr] Failure at "
 				"fiji_start_avfs_btc. AVFS Disabled",
-				return -1;);
+				return -EINVAL;);
 
-		priv->avfs.AvfsBtcStatus =  AVFS_BTC_ENABLEAVFS;
+		smu_data->avfs.avfs_btc_param = AVFS_BTC_ENABLEAVFS;
 		break;
 	case AVFS_BTC_DISABLED: /* Do nothing */
 	case AVFS_BTC_NOTSUPPORTED: /* Do nothing */
 	case AVFS_BTC_ENABLEAVFS:
 		break;
 	default:
-		pr_err("AVFS failed status is %x !\n", priv->avfs.AvfsBtcStatus);
+		pr_err("AVFS failed status is %x !\n", smu_data->avfs.avfs_btc_param);
 		break;
 	}
 	return 0;
@@ -377,19 +380,6 @@ static int fiji_smu_init(struct pp_smumgr *smumgr)
 	if (smu7_init(smumgr))
 		return -EINVAL;
 
-	fiji_priv->avfs.AvfsBtcStatus = AVFS_BTC_BOOT;
-	if (fiji_is_hw_avfs_present(smumgr))
-		/* AVFS Parameter
-		 * 0 - BTC DC disabled, BTC AC disabled
-		 * 1 - BTC DC enabled,  BTC AC disabled
-		 * 2 - BTC DC disabled, BTC AC enabled
-		 * 3 - BTC DC enabled,  BTC AC enabled
-		 * Default is 0 - BTC DC disabled, BTC AC disabled
-		 */
-		fiji_priv->avfs.AvfsBtcParam = 0;
-	else
-		fiji_priv->avfs.AvfsBtcStatus = AVFS_BTC_NOTSUPPORTED;
-
 	for (i = 0; i < SMU73_MAX_LEVELS_GRAPHICS; i++)
 		fiji_priv->activity_target[i] = 30;
 
@@ -421,4 +411,5 @@ static int fiji_smu_init(struct pp_smumgr *smumgr)
 	.initialize_mc_reg_table = fiji_initialize_mc_reg_table,
 	.is_dpm_running = fiji_is_dpm_running,
 	.populate_requested_graphic_levels = fiji_populate_requested_graphic_levels,
+	.is_hw_avfs_present = fiji_is_hw_avfs_present,
 };
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.h b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.h
index adcbdfb..175bf9f 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.h
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.h
@@ -28,17 +28,8 @@
 #include "smu7_smumgr.h"
 
 
-
-struct fiji_smu_avfs {
-	enum AVFS_BTC_STATUS AvfsBtcStatus;
-	uint32_t           AvfsBtcParam;
-};
-
-
 struct fiji_smumgr {
 	struct smu7_smumgr                   smu7_data;
-
-	struct fiji_smu_avfs avfs;
 	struct SMU73_Discrete_DpmTable       smc_state_table;
 	struct SMU73_Discrete_Ulv            ulv_setting;
 	struct SMU73_Discrete_PmFuses  power_tune_table;
@@ -47,7 +38,5 @@ struct fiji_smumgr {
 
 };
 
-
-
 #endif
 
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
index f68e759..99a00bd 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smc.c
@@ -1498,7 +1498,7 @@ static int polaris10_populate_avfs_parameters(struct pp_hwmgr *hwmgr)
 			table_info->vdd_dep_on_sclk;
 
 
-	if (smu_data->avfs.avfs_btc_status == AVFS_BTC_NOTSUPPORTED)
+	if (((struct smu7_smumgr *)smu_data)->avfs.avfs_btc_status == AVFS_BTC_NOTSUPPORTED)
 		return result;
 
 	result = atomctrl_get_avfs_information(hwmgr, &avfs_params);
@@ -1889,7 +1889,7 @@ int polaris10_thermal_avfs_enable(struct pp_hwmgr *hwmgr)
 {
 	int ret;
 	struct pp_smumgr *smumgr = (struct pp_smumgr *)(hwmgr->smumgr);
-	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)(smumgr->backend);
+	struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(smumgr->backend);
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
 
 	if (smu_data->avfs.avfs_btc_status == AVFS_BTC_NOTSUPPORTED)
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
index 7e03470..75f43da 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
@@ -60,16 +60,14 @@
 static const SMU74_Discrete_MemoryLevel avfs_memory_level_polaris10 = {
 	0x100ea446, 0, 0x30750000, 0x01, 0x01, 0x01, 0x00, 0x00, 0x64, 0x00, 0x00, 0x1f00, 0x00, 0x00};
 
-
 static int polaris10_setup_pwr_virus(struct pp_smumgr *smumgr)
 {
 	int i;
-	int result = -1;
+	int result = -EINVAL;
 	uint32_t reg, data;
 
 	const PWR_Command_Table *pvirus = pwr_virus_table;
-	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)(smumgr->backend);
-
+	struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(smumgr->backend);
 
 	for (i = 0; i < PWR_VIRUS_TABLE_SIZE; i++) {
 		switch (pvirus->command) {
@@ -86,7 +84,7 @@ static int polaris10_setup_pwr_virus(struct pp_smumgr *smumgr)
 		default:
 			pr_info("Table Exit with Invalid Command!");
 			smu_data->avfs.avfs_btc_status = AVFS_BTC_VIRUS_FAIL;
-			result = -1;
+			result = -EINVAL;
 			break;
 		}
 		pvirus++;
@@ -98,7 +96,7 @@ static int polaris10_setup_pwr_virus(struct pp_smumgr *smumgr)
 static int polaris10_perform_btc(struct pp_smumgr *smumgr)
 {
 	int result = 0;
-	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)(smumgr->backend);
+	struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(smumgr->backend);
 
 	if (0 != smu_data->avfs.avfs_btc_param) {
 		if (0 != smu7_send_msg_to_smc_with_parameter(smumgr, PPSMC_MSG_PerformBtc, smu_data->avfs.avfs_btc_param)) {
@@ -172,10 +170,11 @@ static int polaris10_setup_graphics_level_structure(struct pp_smumgr *smumgr)
 	return 0;
 }
 
+
 static int
 polaris10_avfs_event_mgr(struct pp_smumgr *smumgr, bool SMU_VFT_INTACT)
 {
-	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)(smumgr->backend);
+	struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(smumgr->backend);
 
 	switch (smu_data->avfs.avfs_btc_status) {
 	case AVFS_BTC_COMPLETED_PREVIOUSLY:
@@ -185,21 +184,21 @@ static int polaris10_setup_graphics_level_structure(struct pp_smumgr *smumgr)
 
 		smu_data->avfs.avfs_btc_status = AVFS_BTC_DPMTABLESETUP_FAILED;
 		PP_ASSERT_WITH_CODE(0 == polaris10_setup_graphics_level_structure(smumgr),
-		"[AVFS][Polaris10_AVFSEventMgr] Could not Copy Graphics Level table over to SMU",
-		return -1);
+			"[AVFS][Polaris10_AVFSEventMgr] Could not Copy Graphics Level table over to SMU",
+			return -EINVAL);
 
 		if (smu_data->avfs.avfs_btc_param > 1) {
 			pr_info("[AVFS][Polaris10_AVFSEventMgr] AC BTC has not been successfully verified on Fiji. There may be in this setting.");
 			smu_data->avfs.avfs_btc_status = AVFS_BTC_VIRUS_FAIL;
-			PP_ASSERT_WITH_CODE(-1 == polaris10_setup_pwr_virus(smumgr),
+			PP_ASSERT_WITH_CODE(0 == polaris10_setup_pwr_virus(smumgr),
 			"[AVFS][Polaris10_AVFSEventMgr] Could not setup Pwr Virus for AVFS ",
-			return -1);
+			return -EINVAL);
 		}
 
 		smu_data->avfs.avfs_btc_status = AVFS_BTC_FAILED;
 		PP_ASSERT_WITH_CODE(0 == polaris10_perform_btc(smumgr),
 					"[AVFS][Polaris10_AVFSEventMgr] Failure at SmuPolaris10_PerformBTC. AVFS Disabled",
-				 return -1);
+				 return -EINVAL);
 		smu_data->avfs.avfs_btc_status = AVFS_BTC_ENABLEAVFS;
 		break;
 
@@ -377,11 +376,6 @@ static int polaris10_smu_init(struct pp_smumgr *smumgr)
 	if (smu7_init(smumgr))
 		return -EINVAL;
 
-	if (polaris10_is_hw_avfs_present(smumgr))
-		smu_data->avfs.avfs_btc_status = AVFS_BTC_BOOT;
-	else
-		smu_data->avfs.avfs_btc_status = AVFS_BTC_NOTSUPPORTED;
-
 	for (i = 0; i < SMU74_MAX_LEVELS_GRAPHICS; i++)
 		smu_data->activity_target[i] = PPPOLARIS10_TARGETACTIVITY_DFLT;
 
@@ -411,4 +405,5 @@ static int polaris10_smu_init(struct pp_smumgr *smumgr)
 	.get_mac_definition = polaris10_get_mac_definition,
 	.is_dpm_running = polaris10_is_dpm_running,
 	.populate_requested_graphic_levels = polaris10_populate_requested_graphic_levels,
+	.is_hw_avfs_present = polaris10_is_hw_avfs_present,
 };
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.h b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.h
index 49ebf1d..5e19c24 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.h
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.h
@@ -32,11 +32,6 @@
 
 #define SMC_RAM_END 0x40000
 
-struct polaris10_avfs {
-	enum AVFS_BTC_STATUS avfs_btc_status;
-	uint32_t           avfs_btc_param;
-};
-
 struct polaris10_pt_defaults {
 	uint8_t   SviLoadLineEn;
 	uint8_t   SviLoadLineVddC;
@@ -51,8 +46,6 @@ struct polaris10_pt_defaults {
 	uint16_t  BAPMTI_RC[SMU74_DTE_ITERATIONS * SMU74_DTE_SOURCES * SMU74_DTE_SINKS];
 };
 
-
-
 struct polaris10_range_table {
 	uint32_t trans_lower_frequency; /* in 10khz */
 	uint32_t trans_upper_frequency;
@@ -61,14 +54,13 @@ struct polaris10_range_table {
 struct polaris10_smumgr {
 	struct smu7_smumgr smu7_data;
 	uint8_t protected_mode;
-	struct polaris10_avfs  avfs;
 	SMU74_Discrete_DpmTable              smc_state_table;
 	struct SMU74_Discrete_Ulv            ulv_setting;
 	struct SMU74_Discrete_PmFuses  power_tune_table;
 	struct polaris10_range_table                range_table[NUM_SCLK_RANGE];
 	const struct polaris10_pt_defaults       *power_tune_defaults;
-	uint32_t                   activity_target[SMU74_MAX_LEVELS_GRAPHICS];
-	uint32_t                   bif_sclk_table[SMU74_MAX_LEVELS_LINK];
+	uint32_t               activity_target[SMU74_MAX_LEVELS_GRAPHICS];
+	uint32_t               bif_sclk_table[SMU74_MAX_LEVELS_LINK];
 };
 
 
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
index 35ac276..76347ff 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
@@ -540,7 +540,6 @@ int smu7_upload_smu_firmware_image(struct pp_smumgr *smumgr)
 	return result;
 }
 
-
 int smu7_init(struct pp_smumgr *smumgr)
 {
 	struct smu7_smumgr *smu_data;
@@ -596,6 +595,11 @@ int smu7_init(struct pp_smumgr *smumgr)
 		(cgs_handle_t)smu_data->smu_buffer.handle);
 		return -EINVAL);
 
+	if (smum_is_hw_avfs_present(smumgr))
+		smu_data->avfs.avfs_btc_status = AVFS_BTC_BOOT;
+	else
+		smu_data->avfs.avfs_btc_status = AVFS_BTC_NOTSUPPORTED;
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.h b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.h
index 919be43..ee5e32d 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.h
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.h
@@ -37,6 +37,11 @@ struct smu7_buffer_entry {
 	unsigned long  handle;
 };
 
+struct smu7_avfs {
+	enum AVFS_BTC_STATUS avfs_btc_status;
+	uint32_t           avfs_btc_param;
+};
+
 struct smu7_smumgr {
 	uint8_t *header;
 	uint8_t *mec_image;
@@ -50,7 +55,8 @@ struct smu7_smumgr {
 	uint32_t                             arb_table_start;
 	uint32_t                             ulv_setting_starts;
 	uint8_t                              security_hard_key;
-	uint32_t acpi_optimization;
+	uint32_t                             acpi_optimization;
+	struct smu7_avfs                     avfs;
 };
 
 
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
index c234029..e0a73ae 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
@@ -402,3 +402,11 @@ int smum_populate_requested_graphic_levels(struct pp_hwmgr *hwmgr,
 
 	return 0;
 }
+
+bool smum_is_hw_avfs_present(struct pp_smumgr *smumgr)
+{
+	if (smumgr->smumgr_funcs->is_hw_avfs_present)
+		return smumgr->smumgr_funcs->is_hw_avfs_present(smumgr);
+
+	return false;
+}
\ No newline at end of file
-- 
1.9.1



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