From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
Sandeep Raghuraman <sandy.8925@gmail.com>,
dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
Alex Deucher <alexander.deucher@amd.com>,
Evan Quan <evan.quan@amd.com>
Subject: [PATCH AUTOSEL 5.4 16/42] drm/amd/pm: do not use ixFEATURE_STATUS for checking smc running
Date: Mon, 9 Nov 2020 22:54:14 -0500 [thread overview]
Message-ID: <20201110035440.424258-16-sashal@kernel.org> (raw)
In-Reply-To: <20201110035440.424258-1-sashal@kernel.org>
From: Evan Quan <evan.quan@amd.com>
[ Upstream commit 786436b453001dafe81025389f96bf9dac1e9690 ]
This reverts commit f87812284172a9809820d10143b573d833cd3f75 ("drm/amdgpu:
Fix bug where DPM is not enabled after hibernate and resume").
It was intended to fix Hawaii S4(hibernation) issue but break S3. As
ixFEATURE_STATUS is filled with garbage data on resume which can be
only cleared by reloading smc firmware(but that will involve many
changes). So, we will revert this S4 fix and seek a new way.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Tested-by: Sandeep Raghuraman <sandy.8925@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c
index 0f4f27a89020d..42c8f8731a504 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c
@@ -2725,10 +2725,7 @@ static int ci_initialize_mc_reg_table(struct pp_hwmgr *hwmgr)
static bool ci_is_dpm_running(struct pp_hwmgr *hwmgr)
{
- return (1 == PHM_READ_INDIRECT_FIELD(hwmgr->device,
- CGS_IND_REG__SMC, FEATURE_STATUS,
- VOLTAGE_CONTROLLER_ON))
- ? true : false;
+ return ci_is_smc_ram_running(hwmgr);
}
static int ci_smu_init(struct pp_hwmgr *hwmgr)
--
2.27.0
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next prev parent reply other threads:[~2020-11-10 3:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20201110035440.424258-1-sashal@kernel.org>
2020-11-10 3:54 ` [PATCH AUTOSEL 5.4 14/42] drm/amdgpu: perform srbm soft reset always on SDMA resume Sasha Levin
2020-11-10 3:54 ` [PATCH AUTOSEL 5.4 15/42] drm/amd/pm: perform SMC reset on suspend/hibernation Sasha Levin
2020-11-10 3:54 ` Sasha Levin [this message]
2020-11-10 3:54 ` [PATCH AUTOSEL 5.4 35/42] amd/amdgpu: Disable VCN DPG mode for Picasso Sasha Levin
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