Attachment 90247 Details for Bug 60389 – possible fix

[patch] possible fix

0001-drm-radeon-apu-leave-fb-base-as-set-by-vbios-evergre.patch (text/plain), 1.16 KB, created by Alex Deucher on 2013-12-04 16:09:16 UTC

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Creator: Alex Deucher

Created: 2013-12-04 16:09:16 UTC

Size: 1.16 KB

patch

obsolete

>From 4bffb541eec5b3cf26c9e7e4254c3e0234682231 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Wed, 4 Dec 2013 11:06:04 -0500
>Subject: [PATCH] drm/radeon/apu: leave fb base as set by vbios (evergreen/ni)
>
>Fixes corruption on some APUs.
>
>Bug:
>https://bugs.freedesktop.org/show_bug.cgi?id=60389
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>---
> drivers/gpu/drm/radeon/rv770.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
>index 9f58467..b219f87 100644
>--- a/drivers/gpu/drm/radeon/rv770.c
>+++ b/drivers/gpu/drm/radeon/rv770.c
>@@ -1599,7 +1599,13 @@ void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
> 				mc->mc_vram_size >> 20, mc->vram_start,
> 				mc->vram_end, mc->real_vram_size >> 20);
> 	} else {
>-		radeon_vram_location(rdev, &rdev->mc, 0);
>+		u64 base = 0;
>+		if (rdev->flags & RADEON_IS_IGP) {
>+			base = RREG32(MC_VM_FB_LOCATION) & 0xFFFF;
>+			base <<= 24;
>+		}
>+
>+		radeon_vram_location(rdev, &rdev->mc, base);
> 		rdev->mc.gtt_base_align = 0;
> 		radeon_gtt_location(rdev, mc);
> 	}
>-- 
>1.8.3.1
>

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Attachments on bug 60389: 74349 | 74350 | 74351 | 74352 | 74355 | 74357 | 74358 | 74359 | 74376 | 74377 | 74378 | 88925 | 90247 | 90885 | 90907 | 90928 | 90939 | 90940 | 90949 | 90957 | 90961

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