From: Dave Airlie <airlied@redhat.com>
Date: Sun, 2 Nov 2008 23:51:57 +0000 (+1000)
Subject: radeon: disable AGP for certain chips if not specified until we figure it out
X-Git-Tag: submit/1.0/20121108.012404~642^2~20^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2b9a7d5381534122858dc6e407794e8cd5c04d3e;p=profile%2Fivi%2Flibdrm.git

radeon: disable AGP for certain chips if not specified until we figure it out
---

diff --git a/shared-core/radeon_cp.c b/shared-core/radeon_cp.c
index 1c187b1..7191478 100644
--- a/shared-core/radeon_cp.c
+++ b/shared-core/radeon_cp.c
@@ -2669,9 +2669,16 @@ int radeon_driver_load(struct drm_device *dev, unsigned long flags)
 	DRM_DEBUG("%s card detected\n",
 		  ((dev_priv->flags & RADEON_IS_AGP) ? "AGP" : (((dev_priv->flags & RADEON_IS_PCIE) ? "PCIE" : "PCI"))));
 
-	if ((dev_priv->flags & RADEON_IS_AGP) && (radeon_agpmode == -1)) {
-		DRM_INFO("Forcing AGP to PCI mode\n");
-		dev_priv->flags &= ~RADEON_IS_AGP;
+	if (dev_priv->flags & RADEON_IS_AGP) {
+
+		/* disable AGP for any chips after RV280 if not specified */
+		if ((dev_priv->chip_family > CHIP_RV280) && (radeon_agpmode == 0))
+			radeon_agpmode = -1;
+
+		if (radeon_agpmode == -1) {
+			DRM_INFO("Forcing AGP to PCI mode\n");
+			dev_priv->flags &= ~RADEON_IS_AGP;
+		}
 	}