[PATCH] drm/amd/pm: re-enable the gfx imu when smu resume
Zhang, Yifan
Yifan1.Zhang at amd.com
Tue Mar 28 02:58:21 UTC 2023
[AMD Official Use Only - General]
This patch is :
Reviewed-by: Yifan Zhang <yifan1.zhang at amd.com>
Best Regards,
Yifan
-----Original Message-----
From: Huang, Tim <Tim.Huang at amd.com>
Sent: Friday, March 24, 2023 3:08 PM
To: amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>; Zhang, Yifan <Yifan1.Zhang at amd.com>; Du, Xiaojian <Xiaojian.Du at amd.com>; Ma, Li <Li.Ma at amd.com>; Huang, Tim <Tim.Huang at amd.com>
Subject: [PATCH] drm/amd/pm: re-enable the gfx imu when smu resume
If the gfx imu is poweroff when suspend, then it need to be re-enabled when resume.
Signed-off-by: Tim Huang <tim.huang at amd.com>
---
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 40 ++++++++++++++++-------
1 file changed, 28 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index b5d64749990e..94fe8593444a 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -162,10 +162,15 @@ int smu_get_dpm_freq_range(struct smu_context *smu,
int smu_set_gfx_power_up_by_imu(struct smu_context *smu) {
- if (!smu->ppt_funcs || !smu->ppt_funcs->set_gfx_power_up_by_imu)
- return -EOPNOTSUPP;
+ int ret = 0;
+ struct amdgpu_device *adev = smu->adev;
- return smu->ppt_funcs->set_gfx_power_up_by_imu(smu);
+ if (smu->ppt_funcs->set_gfx_power_up_by_imu) {
+ ret = smu->ppt_funcs->set_gfx_power_up_by_imu(smu);
+ if (ret)
+ dev_err(adev->dev, "Failed to enable gfx imu!\n");
+ }
+ return ret;
}
static u32 smu_get_mclk(void *handle, bool low) @@ -196,6 +201,19 @@ static u32 smu_get_sclk(void *handle, bool low)
return clk_freq * 100;
}
+static int smu_set_gfx_imu_enable(struct smu_context *smu) {
+ struct amdgpu_device *adev = smu->adev;
+
+ if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
+ return 0;
+
+ if (amdgpu_in_reset(smu->adev) || adev->in_s0ix)
+ return 0;
+
+ return smu_set_gfx_power_up_by_imu(smu); }
+
static int smu_dpm_set_vcn_enable(struct smu_context *smu,
bool enable)
{
@@ -1396,15 +1414,9 @@ static int smu_hw_init(void *handle)
}
if (smu->is_apu) {
- if ((smu->ppt_funcs->set_gfx_power_up_by_imu) &&
- likely(adev->firmware.load_type == AMDGPU_FW_LOAD_PSP)) {
- ret = smu->ppt_funcs->set_gfx_power_up_by_imu(smu);
- if (ret) {
- dev_err(adev->dev, "Failed to Enable gfx imu!\n");
- return ret;
- }
- }
-
+ ret = smu_set_gfx_imu_enable(smu);
+ if (ret)
+ return ret;
smu_dpm_set_vcn_enable(smu, true);
smu_dpm_set_jpeg_enable(smu, true);
smu_set_gfx_cgpg(smu, true);
@@ -1681,6 +1693,10 @@ static int smu_resume(void *handle)
return ret;
}
+ ret = smu_set_gfx_imu_enable(smu);
+ if (ret)
+ return ret;
+
smu_set_gfx_cgpg(smu, true);
smu->disable_uclk_switch = 0;
--
2.25.1
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