From: Adam Jackson <ajax@theobromine.nwnk.net>
Date: Wed, 19 Jul 2006 19:35:31 +0000 (-0400)
Subject: Make sure busmastering gets disabled on module unload.
X-Git-Tag: libdrm-2.3.1~577
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=af7b89d7246efbed7d05c38fcaa6a13c4b89db90;p=platform%2Fupstream%2Flibdrm.git

Make sure busmastering gets disabled on module unload.
---

diff --git a/shared-core/radeon_cp.c b/shared-core/radeon_cp.c
index 695b5ec..299ec6a 100644
--- a/shared-core/radeon_cp.c
+++ b/shared-core/radeon_cp.c
@@ -1719,6 +1719,11 @@ static int radeon_do_cleanup_cp(drm_device_t * dev)
 			dev_priv->gart_info.addr = 0;
 		}
 	}
+
+	/* Disable busmastering */
+	RADEON_WRITE(RADEON_BUS_CNTL, RADEON_READ(RADEON_BUS_CNTL) |
+		RADEON_BUS_MASTER_DIS);
+
 	/* only clear to the start of flags */
 	memset(dev_priv, 0, offsetof(drm_radeon_private_t, flags));