From: "Deucher, Alexander" <Alexander.Deucher-5C7GfCeVMHo@public.gmane.org>
To: "Huang,
JinHuiEric" <JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org>,
"amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
<amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Subject: Re: [PATCH] drm/amd/powerply: fix power reading on Fiji
Date: Thu, 29 Mar 2018 19:54:25 +0000 [thread overview]
Message-ID: <BN6PR12MB18094AA1EA63372A78E03B17F7A20@BN6PR12MB1809.namprd12.prod.outlook.com> (raw)
In-Reply-To: <cb84765d-f9bd-f3d0-973f-13ff15f5b13d-5C7GfCeVMHo@public.gmane.org>
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Thanks. Patch is:
Acked-by: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org>
Care to make a patch to use PPSMC_MSG_GetCurrPkgPwr on polaris boards so we don't have to worry about the delay on them?
Alex
________________________________
From: Huang, JinHuiEric
Sent: Thursday, March 29, 2018 3:40:22 PM
To: Deucher, Alexander; amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: Re: [PATCH] drm/amd/powerply: fix power reading on Fiji
This reading method is shared with AGT tool only on Fiji, because SMU FW doesn't support PPSMC_MSG_GetCurrPkgPwr message on Fiji. But since polaris10, PPSMC_MSG_GetCurrPkgPwr has been supported. We also use PPSMC_MSG_GetCurrPkgPwr on vega which SMU FW control sampling period. Driver will not care about it.
Eric
On 2018-03-29 03:31 PM, Deucher, Alexander wrote:
Do you know what the sampling period is on vega? We should try and be consistent. How about making this selectable via hwmon:
power[1-*]_average_interval Power use averaging interval. A poll
notification is sent to this file if the
hardware changes the averaging interval.
Unit: milliseconds
RW
power[1-*]_average_interval_max Maximum power use averaging interval
Unit: milliseconds
RO
power[1-*]_average_interval_min Minimum power use averaging interval
Unit: milliseconds
RO
Then the user can select the interval they want.
Alex
________________________________
From: amd-gfx <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org><mailto:amd-gfx-bounces@lists.freedesktop.org> on behalf of Eric Huang <JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org><mailto:JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org>
Sent: Thursday, March 29, 2018 3:21:52 PM
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org<mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Cc: Huang, JinHuiEric
Subject: [PATCH] drm/amd/powerply: fix power reading on Fiji
Power value is wrong reported by customer. It is a regression by
commit a7c7bc4c0c47eaac77b8fa92f0672032df7f4254
Author: Rex Zhu <Rex.Zhu-5C7GfCeVMHo@public.gmane.org><mailto:Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
Date: Mon Mar 27 15:32:59 2017 +0800
drm/amd/powerplay: reduce sample period time
for power readings.
Signed-off-by: Rex Zhu <Rex.Zhu-5C7GfCeVMHo@public.gmane.org><mailto:Rex.Zhu-5C7GfCeVMHo@public.gmane.org>
Reviewed-by: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org><mailto:alexander.deucher-5C7GfCeVMHo@public.gmane.org>
Signed-off-by: Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org><mailto:alexander.deucher-5C7GfCeVMHo@public.gmane.org>
The theoretical sampling period is from 50ms to 4sec, original 2sec
is long but correct, and 20ms is too short. change it to more
reasonable 200ms.
Signed-off-by: Eric Huang <JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org><mailto:JinHuiEric.Huang@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index a03b7fe..7631d80 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -3377,7 +3377,8 @@ static int smu7_get_gpu_power(struct pp_hwmgr *hwmgr,
"Failed to start pm status log!",
return -1);
- msleep_interruptible(20);
+ /* Sampling period from 50ms to 4sec */
+ msleep_interruptible(200);
PP_ASSERT_WITH_CODE(!smum_send_msg_to_smc(hwmgr,
PPSMC_MSG_PmStatusLogSample),
--
2.7.4
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https://lists.freedesktop.org/mailman/listinfo/amd-gfx
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next prev parent reply other threads:[~2018-03-29 19:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-29 19:21 [PATCH] drm/amd/powerply: fix power reading on Fiji Eric Huang
[not found] ` <1522351312-27566-1-git-send-email-JinHuiEric.Huang-5C7GfCeVMHo@public.gmane.org>
2018-03-29 19:31 ` Deucher, Alexander
[not found] ` <BN6PR12MB18093357508F0377D97DCBFCF7A20-/b2+HYfkarSEx6ez0IUAagdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-29 19:40 ` Eric Huang
[not found] ` <cb84765d-f9bd-f3d0-973f-13ff15f5b13d-5C7GfCeVMHo@public.gmane.org>
2018-03-29 19:54 ` Deucher, Alexander [this message]
[not found] ` <BN6PR12MB18094AA1EA63372A78E03B17F7A20-/b2+HYfkarSEx6ez0IUAagdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-29 19:58 ` Eric Huang
[not found] ` <d34a1d2c-7f3d-4722-8f80-1ae0cba18df0-5C7GfCeVMHo@public.gmane.org>
2018-03-29 20:00 ` Deucher, Alexander
[not found] ` <BN6PR12MB1809CD35DDC84D955B4C847DF7A20-/b2+HYfkarSEx6ez0IUAagdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-29 20:30 ` Alex Deucher
2018-03-30 7:52 ` Zhu, Rex
[not found] ` <CY4PR12MB1687D41D30442A05D1663E1FFBA10-rpdhrqHFk06Y0SjTqZDccQdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org>
2018-03-30 15:08 ` Eric Huang
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