diff mbox

drm/radeon/kms: use correct reg on fusion when reading back mem config

Message ID 1309540708-24712-1-git-send-email-alexdeucher@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Alex Deucher July 1, 2011, 5:18 p.m. UTC 
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
---
 drivers/gpu/drm/radeon/evergreen.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
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Patch

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 12d2fdc..e8a5ffb 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -2248,7 +2248,10 @@  int evergreen_mc_init(struct radeon_device *rdev)
 
 	/* Get VRAM informations */
 	rdev->mc.vram_is_ddr = true;
-	tmp = RREG32(MC_ARB_RAMCFG);
+	if (rdev->flags & RADEON_IS_IGP)
+		tmp = RREG32(FUS_MC_ARB_RAMCFG);
+	else
+		tmp = RREG32(MC_ARB_RAMCFG);
 	if (tmp & CHANSIZE_OVERRIDE) {
 		chansize = 16;
 	} else if (tmp & CHANSIZE_MASK) {