linux-kernel - [ 18/89] drm/radeon: fix cursor corruption on DCE6 and newer

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Date:	Fri,  1 Feb 2013 14:07:33 +0100
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Jerome Glisse <jglisse@...hat.com>,
	Alex Deucher <alexander.deucher@....com>
Subject: [ 18/89] drm/radeon: fix cursor corruption on DCE6 and newer

3.7-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jerome Glisse <jglisse@...hat.com>

commit e521a29014794d139cca46396d1af8faf1295a26 upstream.

Aruba and newer gpu does not need the avivo cursor work around,
quite the opposite this work around lead to corruption.

agd5f: check DCE6 rather than ARUBA since the issue is DCE
version specific rather than family specific.

Signed-off-by: Jerome Glisse <jglisse@...hat.com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/radeon/radeon_cursor.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -240,7 +240,8 @@ int radeon_crtc_cursor_move(struct drm_c
 		y = 0;
 	}
 
-	if (ASIC_IS_AVIVO(rdev)) {
+	/* fixed on DCE6 and newer */
+	if (ASIC_IS_AVIVO(rdev) && !ASIC_IS_DCE6(rdev)) {
 		int i = 0;
 		struct drm_crtc *crtc_p;
 


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