drm/kms/radeon/agp: Move the check of the aper_size after drm_acp_acquire and drm_agp_info
First call drm_agp_acquire to check if agp has been acquired.
Second call drm_agp_info to fill in the info data struct, including aper_size.
Finally do the check to see if the aper_size makes sense.
Signed-off-by: John Kacur <jkacur@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
index f58c5f4..b634d98 100644
--- a/drivers/gpu/drm/radeon/radeon_agp.c
+++ b/drivers/gpu/drm/radeon/radeon_agp.c
@@ -133,13 +133,6 @@
bool is_v3;
int ret;
- if (rdev->ddev->agp->agp_info.aper_size < 32) {
- dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
- "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);
@@ -154,6 +147,14 @@
DRM_ERROR("Unable to get AGP info: %d\n", ret);
return ret;
}
+
+ if (rdev->ddev->agp->agp_info.aper_size < 32) {
+ dev_warn(rdev->dev, "AGP aperture too small (%zuM) "
+ "need at least 32M, disabling AGP\n",
+ rdev->ddev->agp->agp_info.aper_size);
+ return -EINVAL;
+ }
+
mode.mode = info.mode;
agp_status = (RREG32(RADEON_AGP_STATUS) | RADEON_AGPv3_MODE) & mode.mode;
is_v3 = !!(agp_status & RADEON_AGPv3_MODE);