Attachment 35157 Details for Bug 25408 – Fix rs600 gart tlb flush

[patch] Fix rs600 gart tlb flush

0001-drm-radeon-kms-fix-rs600-tlb-flush.patch (text/plain), 1.11 KB, created by Jerome Glisse on 2010-04-19 03:30:31 UTC

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Creator: Jerome Glisse

Created: 2010-04-19 03:30:31 UTC

Size: 1.11 KB

patch

obsolete

>From a0550130a48a5b0f5675c7db1b017a0f238f827e Mon Sep 17 00:00:00 2001
>From: Jerome Glisse <jglisse@redhat.com>
>Date: Fri, 16 Apr 2010 18:38:37 +0200
>Subject: [PATCH] drm/radeon/kms: fix rs600 tlb flush
>
>Typo in in flush leaded to no flush of the RS600 tlb which
>ultimately leaded to massive system ram corruption, with
>this patch everythings seems to work properly.
>
>Signed-off-by: Jerome Glisse <jglisse@redhat.com>
>Cc: stable <stable@kernel.org>
>---
> drivers/gpu/drm/radeon/rs600.c |    2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
>index a16d9d7..5e3f218 100644
>--- a/drivers/gpu/drm/radeon/rs600.c
>+++ b/drivers/gpu/drm/radeon/rs600.c
>@@ -231,7 +231,7 @@ void rs600_gart_tlb_flush(struct radeon_device *rdev)
> 	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
> 
> 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
>-	tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) & S_000100_INVALIDATE_L2_CACHE(1);
>+	tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) | S_000100_INVALIDATE_L2_CACHE(1);
> 	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
> 
> 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
>-- 
>1.7.0.1
>

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