This is a note to let you know that I've just added the patch titled
drm/amd/powerplay: fix power over limit on Fiji
to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: drm-amd-powerplay-fix-power-over-limit-on-fiji.patch and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From a0aaa03062be252aacad60a776f3374dd53e3f98 Mon Sep 17 00:00:00 2001
From: Eric Huang JinHuiEric.Huang@amd.com Date: Mon, 26 Feb 2018 17:36:19 -0500 Subject: drm/amd/powerplay: fix power over limit on Fiji
From: Eric Huang JinHuiEric.Huang@amd.com
commit a0aaa03062be252aacad60a776f3374dd53e3f98 upstream.
power containment disabled only on Fiji and compute power profile. It violates PCIe spec and may cause power supply failed. Enabling it will fix the issue, even the fix will drop performance of some compute tests.
Signed-off-by: Eric Huang JinHuiEric.Huang@amd.com Reviewed-by: Felix Kuehling Felix.Kuehling@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 7 ------- 1 file changed, 7 deletions(-)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c @@ -4572,13 +4572,6 @@ static int smu7_set_power_profile_state( int tmp_result, result = 0; uint32_t sclk_mask = 0, mclk_mask = 0;
- if (hwmgr->chip_id == CHIP_FIJI) { - if (request->type == AMD_PP_GFX_PROFILE) - smu7_enable_power_containment(hwmgr); - else if (request->type == AMD_PP_COMPUTE_PROFILE) - smu7_disable_power_containment(hwmgr); - } - if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_AUTO) return -EINVAL;
Patches currently in stable-queue which might be from JinHuiEric.Huang@amd.com are
queue-4.15/drm-amd-powerplay-fix-power-over-limit-on-fiji.patch