linux-kernel - [PATCH] drm/radeon/kms: Disable agp only if we are dealing with an AGP GPU

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Message-Id: <1259599679-16698-1-git-send-email-jglisse@redhat.com>
Date:	Mon, 30 Nov 2009 17:47:59 +0100
From:	Jerome Glisse <jglisse@...hat.com>
To:	airlied@...il.com
Cc:	dri-devel@...ts.sf.net, linux-kernel@...r.kernel.org,
	Jerome Glisse <jglisse@...hat.com>
Subject: [PATCH] drm/radeon/kms: Disable agp only if we are dealing with an AGP GPU

On IGP if you pass option agpmode=-1 you would overwrite the set_page
function callback with improper function which endup in non functioning
hw. This patch will disable agp when giving agpmode=-1 parameter only
if we are dealing with an AGP GPU.

Signed-off-by: Jerome Glisse <jglisse@...hat.com>
---
 drivers/gpu/drm/radeon/radeon_device.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index e3f9edf..eaed6af 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -553,7 +553,7 @@ int radeon_device_init(struct radeon_device *rdev,
 		return r;
 	}
 
-	if (radeon_agpmode == -1) {
+	if (rdev->flags & RADEON_IS_AGP && radeon_agpmode == -1) {
 		radeon_agp_disable(rdev);
 	}
 
-- 
1.6.5.2

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