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-rw-r--r--drivers/gpu/drm/radeon/rs600.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 11a1da0fc76..3be456b7819 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -45,6 +45,20 @@
void rs600_gpu_init(struct radeon_device *rdev);
int rs600_mc_wait_for_idle(struct radeon_device *rdev);
+int rs600_mc_init(struct radeon_device *rdev)
+{
+ /* read back the MC value from the hw */
+ uint32_t mc_fb_loc;
+ int r;
+
+ mc_fb_loc = RREG32_MC(R_000004_MC_FB_LOCATION);
+ rdev->mc.vram_location = G_000004_MC_FB_START(mc_fb_loc) << 16;
+ rdev->mc.gtt_location = 0xffffffffUL;
+ r = radeon_mc_setup(rdev);
+ if (r)
+ return r;
+ return 0;
+}
/*
* GART.
*/
@@ -505,7 +519,7 @@ int rs600_init(struct radeon_device *rdev)
/* Get vram informations */
rs600_vram_info(rdev);
/* Initialize memory controller (also test AGP) */
- r = r420_mc_init(rdev);
+ r = rs600_mc_init(rdev);
if (r)
return r;
rs600_debugfs(rdev);