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From: jimqu <Jim.Qu-5C7GfCeVMHo@public.gmane.org>
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: jimqu <Jim.Qu-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH] drm/amdgpu: atombios stuck executing during S3 stress test
Date: Wed, 19 Oct 2016 16:25:29 +0800	[thread overview]
Message-ID: <1476865529-8924-1-git-send-email-Jim.Qu@amd.com> (raw)

Sometimes, atombios may be stucked when resume back. Duo to PCIE has
set to D3cold, the ACC of GFX adapter is power-down. it should re-init
the scratch registers. with the change, test is pass more than 80 cycles
on Fiji.

Change-Id: I9cf40c475c4a5a31216949d50cc5e30b74dc21c4
Signed-off-by: JimQu <Jim.Qu@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index e82c487..bfe9a5c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2098,6 +2098,7 @@ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon)
 				console_unlock();
 			return r;
 		}
+		amdgpu_atombios_scratch_regs_init(adev);
 	}
 
 	/* post card */
-- 
1.9.1

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             reply	other threads:[~2016-10-19  8:25 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-19  8:25 jimqu [this message]
     [not found] ` <1476865529-8924-1-git-send-email-Jim.Qu-5C7GfCeVMHo@public.gmane.org>
2016-10-19 18:46   ` [PATCH] drm/amdgpu: atombios stuck executing during S3 stress test Alex Deucher
     [not found]     ` <CADnq5_MOypPU09YUtH1xanHCTyd7gODV4UUWerHzaX13iwCq2A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-10-20  4:40       ` 答复: " Qu, Jim

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