drm/radeon/kms: fix vram setup on rs600/rs690/rs740

Don't remap vram to 0 on IGP chips.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 3be456b78191..84b26376027d 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -48,11 +48,12 @@ 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;
+        u32 tmp;
 
-        mc_fb_loc = RREG32_MC(R_000004_MC_FB_LOCATION);
-        rdev->mc.vram_location = G_000004_MC_FB_START(mc_fb_loc) << 16;
+        /* Setup GPU memory space */
+        tmp = RREG32_MC(R_000004_MC_FB_LOCATION);
+        rdev->mc.vram_location = G_000004_MC_FB_START(tmp) << 16;
         rdev->mc.gtt_location = 0xffffffffUL;
         r = radeon_mc_setup(rdev);
         if (r)