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From d186176bfb4d3ea76e527bc7842ac5c4a8593473 Mon Sep 17 00:00:00 2001
From: Mikita Lipski <mikita.lipski@amd.com>
Date: Mon, 14 May 2018 10:13:57 -0400
Subject: [PATCH 4062/4131] drm/amd/powerplay: Add notify PWE function to SMU10
Functionality to message smc to enable pwe after gpu suspense.
It is used in case when display resumes from S3 and wants to start
audio driver by enabling pwe.
Cherry-pick those patches for the issue:
PLAT-26011: [HP_Rockets1.1][RV] Sound doesn't output from HDMI
monitor if boot into OS with DC mode.
SWDEV-139426: [Raven] [PPLIB]#PME sw w/a to support waking AZ from D3
Change-Id: If95078a060f35bcfbaa4ea25ad126419a38aedc7
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 8 ++++++++
drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index 7147712..5edd15c 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -1105,6 +1105,13 @@ static int smu10_set_watermarks_for_clocks_ranges(struct pp_hwmgr *hwmgr,
data->water_marks_exist = true;
return result;
}
+
+static int smu10_smus_notify_pwe(struct pp_hwmgr *hwmgr)
+{
+
+ return smum_send_msg_to_smc(hwmgr, PPSMC_MSG_SetRccPfcPmeRestoreRegister);
+}
+
static int smu10_set_mmhub_powergating_by_smu(struct pp_hwmgr *hwmgr)
{
return smum_send_msg_to_smc(hwmgr, PPSMC_MSG_PowerGateMmHub);
@@ -1145,6 +1152,7 @@ static const struct pp_hwmgr_func smu10_hwmgr_funcs = {
.power_state_set = smu10_set_power_state_tasks,
.dynamic_state_management_disable = smu10_disable_dpm_tasks,
.set_mmhub_powergating_by_smu = smu10_set_mmhub_powergating_by_smu,
+ .smus_notify_pwe = smu10_smus_notify_pwe,
.gfx_off_control = smu10_gfx_off_control,
};
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index 701ac5d..967cfc0 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -324,6 +324,7 @@ struct pp_hwmgr_func {
long *input, uint32_t size);
int (*set_power_limit)(struct pp_hwmgr *hwmgr, uint32_t n);
int (*set_mmhub_powergating_by_smu)(struct pp_hwmgr *hwmgr);
+ int (*smus_notify_pwe)(struct pp_hwmgr *hwmgr);
};
struct pp_table_func {
--
2.7.4
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