radeon KMS need a GART of at least 32M to properly work. This patch
check the AGP aperture size and disable if it's less than 32M. Note
than unlike non KMS path we don't staticaly allocate AGP memory so
we are not wasting memory not used by graphic processing.
Signed-off-by: Jerome Glisse <jgli...@redhat.com>
---
drivers/gpu/drm/radeon/radeon_agp.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c
b/drivers/gpu/drm/radeon/radeon_agp.c
index 220f454..c9ad7f5 100644
--- a/drivers/gpu/drm/radeon/radeon_agp.c
+++ b/drivers/gpu/drm/radeon/radeon_agp.c
@@ -133,6 +133,13 @@ int radeon_agp_init(struct radeon_device *rdev)
bool is_v3;
int ret;
+ if (rdev->ddev->agp->agp_info.aper_size < 32) {
+ dev_warn(rdev->dev, "AGP aperture to small (%dM) "
+ "need at least 32M, disabling AGP\n",
+ rdev->ddev->agp->agp_info.aper_size);
+ return -EINVAL;
+ }
+
/* Acquire AGP. */
if (!rdev->ddev->agp->acquired) {
ret = drm_agp_acquire(rdev->ddev);
--
1.6.5.2
------------------------------------------------------------------------------
This SF.Net email is sponsored by the Verizon Developer Community
Take advantage of Verizon's best-in-class app development support
A streamlined, 14 day to market process makes app distribution fast and easy
Join now and get one step closer to millions of Verizon customers
http://p.sf.net/sfu/verizon-dev2dev
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel
