Attachment 129182 Details for Bug 99387 – possible fix

[patch] possible fix

0001-drm-amdgpu-si-fix-crash-on-headless-asics.patch (text/plain), 1.32 KB, created by Alex Deucher on 2017-01-27 15:34:18 UTC

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Creator: Alex Deucher

Created: 2017-01-27 15:34:18 UTC

Size: 1.32 KB

patch

obsolete

>From 91ce4668b8dd0442c1b167149c821267504a42e0 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Fri, 27 Jan 2017 10:31:52 -0500
>Subject: [PATCH] drm/amdgpu/si: fix crash on headless asics
>
>Missing check for crtcs present.
>
>Fixes:
>https://bugzilla.kernel.org/show_bug.cgi?id=193341
>https://bugs.freedesktop.org/show_bug.cgi?id=99387
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>---
> drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
>index 2341cf0..ea3779d 100644
>--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
>+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
>@@ -227,6 +227,9 @@ static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
> 	}
> 	WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
> 
>+	if (adev->mode_info.num_crtc)
>+		amdgpu_display_set_vga_render_state(adev, false);
>+
> 	gmc_v6_0_mc_stop(adev, &save);
> 
> 	if (gmc_v6_0_wait_for_idle((void *)adev)) {
>@@ -256,7 +259,6 @@ static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
> 		dev_warn(adev->dev, "Wait for MC idle timedout !\n");
> 	}
> 	gmc_v6_0_mc_resume(adev, &save);
>-	amdgpu_display_set_vga_render_state(adev, false);
> }
> 
> static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
>-- 
>2.5.5
>

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Attachments on bug 99387: 128917 | 128923 | 128924 | 129182 | 129329 | 129330 | 129495 | 129496 | 129497 | 129516

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