* [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus
@ 2021-04-23 3:22 Darren Powell
2021-04-23 3:22 ` [PATCH 1/3] amdgpu/pm: add extra info to SMU msg pre-check failed message Darren Powell
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: Darren Powell @ 2021-04-23 3:22 UTC (permalink / raw)
To: amd-gfx; +Cc: Darren Powell
=== Description ===
Set of simple patches to prevent attempts to set dcefclk on NAVI10
=== Test System ===
* DESKTOP(AMD FX-8350 + NAVI10(731F/ca), BIOS: F2)
+ ISO(Ubuntu 20.04.1 LTS)
+ Kernel(5.11.0-custom-amdinternal-dirty)
=== Patch Summary ===
linux: (git@gitlab.freedesktop.org:agd5f) origin/amd-staging-drm-next @ b54280b32ebb
+ 599f1ebb60cc amdgpu/pm: add extra info to SMU msg pre-check failed message
+ 291dcf836f45 amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
+ c8ce10fc1d99 amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus
=== Tests ===
General Test Sequence
---------------------
* monitor dmesg output in a shell
dmesg -w
* launch a root shell
sudo bash
* set control to manual
cd /sys/class/drm/card0/device
echo manual > power_dpm_force_performance_level
* next step is expected to crash the GPU in unpatched and with patch 0001
** system usually continues operation so you can reboot gracefully
* TEST 1: modify pp_dpm_dcefclk to each level (0,1,2) and read setting after each write
echo "1" > pp_dpm_dcefclk ; sleep 2 ; echo " ---set 1---" ; cat pp_dpm_dcefclk ;\
echo "2" > pp_dpm_dcefclk ; sleep 2 ; echo " ---set 2---" ; cat pp_dpm_dcefclk ;\
echo "0" > pp_dpm_dcefclk ; sleep 2 ; echo " ---set 0---" ; cat pp_dpm_dcefclk
** example output
[ 74.493190] amdgpu 0000:03:00.0: amdgpu: failed send message: SetSoftMaxByFreq (27) param: 0x000504f2 response 0xff
[ 76.497102] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 76.497114] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
[ 76.497649] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 78.501229] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 78.501241] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
[ 78.501766] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 80.505401] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 80.505414] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
* TEST 2:
ls -la /sys/class/drm/card0/device/pp_dpm_dcefclk
** example output
-rw-r--r-- 1 root root 4096 Apr 7 18:33 /sys/class/drm/card0/device/pp_dpm_dcefclk
* POST TEST
** restore dpm clock to auto
echo auto > power_dpm_force_performance_level
Test Results
------------
* 0001 amdgpu/pm: add extra info to SMU msg pre-check failed message
** TEST 1 dmesg output
[ 101.414826] amdgpu 0000:03:00.0: amdgpu: failed send message: SetSoftMaxByFreq (27) param: 0x000504f2 response 0xff
[ 103.418916] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 103.418930] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
[ 103.419474] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 105.423226] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 105.423239] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
[ 105.423649] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 107.427502] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 107.427516] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
* 0002 amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
** GPU remains operational after test
** TEST 1 dmesg output
[ 263.087136] amdgpu 0000:03:00.0: amdgpu: Setting DCEFCLK min/max dpm level is not supported!
[ 265.092026] amdgpu 0000:03:00.0: amdgpu: Setting DCEFCLK min/max dpm level is not supported!
[ 267.096648] amdgpu 0000:03:00.0: amdgpu: Setting DCEFCLK min/max dpm level is not supported!
* 0003 amdgpu/pm: set pp_dpm_dcefclk to readonly on smu_v11 gpus
** TEST 2 shell output
bash: pp_dpm_dcefclk: Permission denied
---set 1---
0: 506Mhz *
1: 886Mhz
2: 1266Mhz
bash: pp_dpm_dcefclk: Permission denied
---set 2---
0: 506Mhz *
1: 886Mhz
2: 1266Mhz
bash: pp_dpm_dcefclk: Permission denied
---set 0---
0: 506Mhz *
1: 886Mhz
2: 1266Mhz
Darren Powell (3):
amdgpu/pm: add extra info to SMU msg pre-check failed message
amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus
drivers/gpu/drm/amd/pm/amdgpu_pm.c | 8 ++++++++
drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 5 ++++-
drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 4 +++-
drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 4 ++--
4 files changed, 17 insertions(+), 4 deletions(-)
base-commit: b54280b32ebb9381e045e645eabd99dbbe607ec2
--
2.25.1
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH 1/3] amdgpu/pm: add extra info to SMU msg pre-check failed message
2021-04-23 3:22 [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus Darren Powell
@ 2021-04-23 3:22 ` Darren Powell
2021-04-23 3:22 ` [PATCH 2/3] amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID Darren Powell
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Darren Powell @ 2021-04-23 3:22 UTC (permalink / raw)
To: amd-gfx; +Cc: Darren Powell
Insert the value of the response to error message emitted when the
SMU msg pre-check failes
Signed-off-by: Darren Powell <darren.powell@amd.com>
---
drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
index dc7d2e71aa6f..5d1743f3321e 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
@@ -104,8 +104,8 @@ int smu_cmn_send_msg_without_waiting(struct smu_context *smu,
ret = smu_cmn_wait_for_response(smu);
if (ret != 0x1) {
- dev_err(adev->dev, "Msg issuing pre-check failed and "
- "SMU may be not in the right state!\n");
+ dev_err(adev->dev, "Msg issuing pre-check failed(0x%x) and "
+ "SMU may be not in the right state!\n", ret);
if (ret != -ETIME)
ret = -EIO;
return ret;
--
2.25.1
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^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/3] amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
2021-04-23 3:22 [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus Darren Powell
2021-04-23 3:22 ` [PATCH 1/3] amdgpu/pm: add extra info to SMU msg pre-check failed message Darren Powell
@ 2021-04-23 3:22 ` Darren Powell
2021-04-23 3:22 ` [PATCH 3/3] amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus Darren Powell
2021-04-23 5:24 ` [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus Feng, Kenneth
3 siblings, 0 replies; 5+ messages in thread
From: Darren Powell @ 2021-04-23 3:22 UTC (permalink / raw)
To: amd-gfx; +Cc: Darren Powell
Writing to dcefclk causes the gpu to become unresponsive, and requires a reboot.
Patch ignores a .force_clk_levels(SMU_DCEFCLK) call and issues an
info message.
Signed-off-by: Darren Powell <darren.powell@amd.com>
---
drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 5 ++++-
drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 4 +++-
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index f827096dc849..ac13042672ea 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -1443,7 +1443,6 @@ static int navi10_force_clk_levels(struct smu_context *smu,
case SMU_SOCCLK:
case SMU_MCLK:
case SMU_UCLK:
- case SMU_DCEFCLK:
case SMU_FCLK:
/* There is only 2 levels for fine grained DPM */
if (navi10_is_support_fine_grained_dpm(smu, clk_type)) {
@@ -1463,6 +1462,10 @@ static int navi10_force_clk_levels(struct smu_context *smu,
if (ret)
return size;
break;
+ case SMU_DCEFCLK:
+ dev_info(smu->adev->dev,"Setting DCEFCLK min/max dpm level is not supported!\n");
+ break;
+
default:
break;
}
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index 72d9c1be1835..d2fd44b903ca 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -1127,7 +1127,6 @@ static int sienna_cichlid_force_clk_levels(struct smu_context *smu,
case SMU_SOCCLK:
case SMU_MCLK:
case SMU_UCLK:
- case SMU_DCEFCLK:
case SMU_FCLK:
/* There is only 2 levels for fine grained DPM */
if (sienna_cichlid_is_support_fine_grained_dpm(smu, clk_type)) {
@@ -1147,6 +1146,9 @@ static int sienna_cichlid_force_clk_levels(struct smu_context *smu,
if (ret)
goto forec_level_out;
break;
+ case SMU_DCEFCLK:
+ dev_info(smu->adev->dev,"Setting DCEFCLK min/max dpm level is not supported!\n");
+ break;
default:
break;
}
--
2.25.1
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 3/3] amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus
2021-04-23 3:22 [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus Darren Powell
2021-04-23 3:22 ` [PATCH 1/3] amdgpu/pm: add extra info to SMU msg pre-check failed message Darren Powell
2021-04-23 3:22 ` [PATCH 2/3] amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID Darren Powell
@ 2021-04-23 3:22 ` Darren Powell
2021-04-23 5:24 ` [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus Feng, Kenneth
3 siblings, 0 replies; 5+ messages in thread
From: Darren Powell @ 2021-04-23 3:22 UTC (permalink / raw)
To: amd-gfx; +Cc: Kenneth Feng, Darren Powell
v2 : change condition to apply to all chips after NAVI10
Writing to dcefclk causes the gpu to become unresponsive, and requires a reboot.
Patch prevents user from successfully writing to file pp_dpm_dcefclk on parts
NAVI10 and newer, and gives better user feedback that this operation is not allowed.
Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
---
drivers/gpu/drm/amd/pm/amdgpu_pm.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 8128603ef495..4e459ef632ef 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -1893,6 +1893,14 @@ static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_
}
}
+ if (DEVICE_ATTR_IS(pp_dpm_dcefclk)) {
+ /* SMU MP1 does not support dcefclk level setting */
+ if (asic_type >= CHIP_NAVI10) {
+ dev_attr->attr.mode &= ~S_IWUGO;
+ dev_attr->store = NULL;
+ }
+ }
+
#undef DEVICE_ATTR_IS
return 0;
--
2.25.1
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^ permalink raw reply related [flat|nested] 5+ messages in thread
* RE: [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus
2021-04-23 3:22 [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus Darren Powell
` (2 preceding siblings ...)
2021-04-23 3:22 ` [PATCH 3/3] amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus Darren Powell
@ 2021-04-23 5:24 ` Feng, Kenneth
3 siblings, 0 replies; 5+ messages in thread
From: Feng, Kenneth @ 2021-04-23 5:24 UTC (permalink / raw)
To: Powell, Darren, amd-gfx
[AMD Official Use Only - Internal Distribution Only]
Series are Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
-----Original Message-----
From: Powell, Darren <Darren.Powell@amd.com>
Sent: Friday, April 23, 2021 11:23 AM
To: amd-gfx@lists.freedesktop.org
Cc: Powell, Darren <Darren.Powell@amd.com>
Subject: [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus
=== Description ===
Set of simple patches to prevent attempts to set dcefclk on NAVI10
=== Test System ===
* DESKTOP(AMD FX-8350 + NAVI10(731F/ca), BIOS: F2) + ISO(Ubuntu 20.04.1 LTS) + Kernel(5.11.0-custom-amdinternal-dirty)
=== Patch Summary ===
linux: (git@gitlab.freedesktop.org:agd5f) origin/amd-staging-drm-next @ b54280b32ebb
+ 599f1ebb60cc amdgpu/pm: add extra info to SMU msg pre-check failed message
+ 291dcf836f45 amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
+ c8ce10fc1d99 amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus
=== Tests ===
General Test Sequence
---------------------
* monitor dmesg output in a shell
dmesg -w
* launch a root shell
sudo bash
* set control to manual
cd /sys/class/drm/card0/device
echo manual > power_dpm_force_performance_level
* next step is expected to crash the GPU in unpatched and with patch 0001
** system usually continues operation so you can reboot gracefully
* TEST 1: modify pp_dpm_dcefclk to each level (0,1,2) and read setting after each write
echo "1" > pp_dpm_dcefclk ; sleep 2 ; echo " ---set 1---" ; cat pp_dpm_dcefclk ;\
echo "2" > pp_dpm_dcefclk ; sleep 2 ; echo " ---set 2---" ; cat pp_dpm_dcefclk ;\
echo "0" > pp_dpm_dcefclk ; sleep 2 ; echo " ---set 0---" ; cat pp_dpm_dcefclk
** example output
[ 74.493190] amdgpu 0000:03:00.0: amdgpu: failed send message: SetSoftMaxByFreq (27) param: 0x000504f2 response 0xff
[ 76.497102] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 76.497114] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
[ 76.497649] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 78.501229] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 78.501241] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
[ 78.501766] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 80.505401] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed and SMU may be not in the right state!
[ 80.505414] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
* TEST 2:
ls -la /sys/class/drm/card0/device/pp_dpm_dcefclk
** example output
-rw-r--r-- 1 root root 4096 Apr 7 18:33 /sys/class/drm/card0/device/pp_dpm_dcefclk
* POST TEST
** restore dpm clock to auto
echo auto > power_dpm_force_performance_level
Test Results
------------
* 0001 amdgpu/pm: add extra info to SMU msg pre-check failed message
** TEST 1 dmesg output
[ 101.414826] amdgpu 0000:03:00.0: amdgpu: failed send message: SetSoftMaxByFreq (27) param: 0x000504f2 response 0xff
[ 103.418916] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 103.418930] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
[ 103.419474] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 105.423226] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 105.423239] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
[ 105.423649] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 107.427502] amdgpu 0000:03:00.0: amdgpu: Msg issuing pre-check failed(0xff) and SMU may be not in the right state!
[ 107.427516] amdgpu 0000:03:00.0: amdgpu: Failed to export SMU metrics table!
* 0002 amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
** GPU remains operational after test
** TEST 1 dmesg output
[ 263.087136] amdgpu 0000:03:00.0: amdgpu: Setting DCEFCLK min/max dpm level is not supported!
[ 265.092026] amdgpu 0000:03:00.0: amdgpu: Setting DCEFCLK min/max dpm level is not supported!
[ 267.096648] amdgpu 0000:03:00.0: amdgpu: Setting DCEFCLK min/max dpm level is not supported!
* 0003 amdgpu/pm: set pp_dpm_dcefclk to readonly on smu_v11 gpus
** TEST 2 shell output
bash: pp_dpm_dcefclk: Permission denied
---set 1---
0: 506Mhz *
1: 886Mhz
2: 1266Mhz
bash: pp_dpm_dcefclk: Permission denied
---set 2---
0: 506Mhz *
1: 886Mhz
2: 1266Mhz
bash: pp_dpm_dcefclk: Permission denied
---set 0---
0: 506Mhz *
1: 886Mhz
2: 1266Mhz
Darren Powell (3):
amdgpu/pm: add extra info to SMU msg pre-check failed message
amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus
drivers/gpu/drm/amd/pm/amdgpu_pm.c | 8 ++++++++
drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 5 ++++-
drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 4 +++-
drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 4 ++--
4 files changed, 17 insertions(+), 4 deletions(-)
base-commit: b54280b32ebb9381e045e645eabd99dbbe607ec2
--
2.25.1
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2021-04-23 3:22 [PATCH v2 0/3] Prevent set of DCEFCLK on smu_v11 gpus Darren Powell
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2021-04-23 3:22 ` [PATCH 2/3] amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID Darren Powell
2021-04-23 3:22 ` [PATCH 3/3] amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus Darren Powell
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