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From 16771d04dd4cc10841337572c74c46364725b8b7 Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Thu, 19 Jul 2018 13:49:07 +0800
Subject: [PATCH 0002/2940] drm/amd/pp: Add ACP PG support in SMU
when ACP block not enabled, we power off
acp block to save power.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 18 ++++++++++++++++
.../gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c | 21 ++++++++++++++++++-
drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 1 +
3 files changed, 39 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 7a646f94b478..da4ebff5b74d 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -1181,6 +1181,21 @@ static int pp_dpm_powergate_gfx(void *handle, bool gate)
return hwmgr->hwmgr_func->powergate_gfx(hwmgr, gate);
}
+static void pp_dpm_powergate_acp(void *handle, bool gate)
+{
+ struct pp_hwmgr *hwmgr = handle;
+
+ if (!hwmgr || !hwmgr->pm_en)
+ return;
+
+ if (hwmgr->hwmgr_func->powergate_acp == NULL) {
+ pr_info("%s was not implemented.\n", __func__);
+ return;
+ }
+
+ hwmgr->hwmgr_func->powergate_acp(hwmgr, gate);
+}
+
static int pp_set_powergating_by_smu(void *handle,
uint32_t block_type, bool gate)
{
@@ -1200,6 +1215,9 @@ static int pp_set_powergating_by_smu(void *handle,
case AMD_IP_BLOCK_TYPE_GFX:
ret = pp_dpm_powergate_gfx(handle, gate);
break;
+ case AMD_IP_BLOCK_TYPE_ACP:
+ pp_dpm_powergate_acp(handle, gate);
+ break;
default:
break;
}
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c
index c9a15baf2c10..86b6a43e1c6a 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c
@@ -664,8 +664,13 @@ static void smu8_init_power_gate_state(struct pp_hwmgr *hwmgr)
data->uvd_power_gated = false;
data->vce_power_gated = false;
data->samu_power_gated = false;
+#ifdef CONFIG_DRM_AMD_ACP
data->acp_power_gated = false;
- data->pgacpinit = true;
+#else
+ smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ACPPowerOFF);
+ data->acp_power_gated = true;
+#endif
+
}
static void smu8_init_sclk_threshold(struct pp_hwmgr *hwmgr)
@@ -1889,6 +1894,19 @@ static int smu8_enable_disable_vce_dpm(struct pp_hwmgr *hwmgr, bool enable)
}
+static void smu8_dpm_powergate_acp(struct pp_hwmgr *hwmgr, bool bgate)
+{
+ struct smu8_hwmgr *data = hwmgr->backend;
+
+ if (data->acp_power_gated == bgate)
+ return;
+
+ if (bgate)
+ smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ACPPowerOFF);
+ else
+ smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ACPPowerON);
+}
+
static void smu8_dpm_powergate_uvd(struct pp_hwmgr *hwmgr, bool bgate)
{
struct smu8_hwmgr *data = hwmgr->backend;
@@ -1954,6 +1972,7 @@ static const struct pp_hwmgr_func smu8_hwmgr_funcs = {
.powerdown_uvd = smu8_dpm_powerdown_uvd,
.powergate_uvd = smu8_dpm_powergate_uvd,
.powergate_vce = smu8_dpm_powergate_vce,
+ .powergate_acp = smu8_dpm_powergate_acp,
.get_mclk = smu8_dpm_get_mclk,
.get_sclk = smu8_dpm_get_sclk,
.patch_boot_state = smu8_dpm_patch_boot_state,
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index d3d96260f440..7e58a0da5ccf 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -247,6 +247,7 @@ struct pp_hwmgr_func {
int (*powerdown_uvd)(struct pp_hwmgr *hwmgr);
void (*powergate_vce)(struct pp_hwmgr *hwmgr, bool bgate);
void (*powergate_uvd)(struct pp_hwmgr *hwmgr, bool bgate);
+ void (*powergate_acp)(struct pp_hwmgr *hwmgr, bool bgate);
uint32_t (*get_mclk)(struct pp_hwmgr *hwmgr, bool low);
uint32_t (*get_sclk)(struct pp_hwmgr *hwmgr, bool low);
int (*power_state_set)(struct pp_hwmgr *hwmgr,
--
2.17.1
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