linux-kernel - [PATCH] drm/radeon/kms: fix rs600 tlb flush

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Date:	Fri, 16 Apr 2010 18:46:35 +0200
From:	Jerome Glisse <jglisse@...hat.com>
To:	airlied@...il.com
Cc:	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	stable@...nel.org, Jerome Glisse <jglisse@...hat.com>
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@...hat.com>
Cc: stable <stable@...nel.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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