drm/radeon/kms: fix R3XX/R4XX memory controller initialization
Jerome Glisse [Thu, 18 Feb 2010 14:23:49 +0000 (14:23 +0000)]
Version 2 of memory controller did break the initialization for
R3XX/R4XX hardware. This patch fix it.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/r300.c

index 7e9f956..b188aae 100644 (file)
@@ -461,7 +461,8 @@ int r300_gpu_reset(struct radeon_device *rdev)
  */
 void r300_mc_init(struct radeon_device *rdev)
 {
-       uint32_t tmp;
+       u64 base;
+       u32 tmp;
 
        /* DDR for all card after R300 & IGP */
        rdev->mc.vram_is_ddr = true;
@@ -474,6 +475,10 @@ void r300_mc_init(struct radeon_device *rdev)
        default:  rdev->mc.vram_width = 128; break;
        }
        r100_vram_init_sizes(rdev);
+       base = rdev->mc.aper_base;
+       if (rdev->flags & RADEON_IS_IGP)
+               base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
+       radeon_vram_location(rdev, &rdev->mc, base);
        if (!(rdev->flags & RADEON_IS_AGP))
                radeon_gtt_location(rdev, &rdev->mc);
 }