drm/radeon/kms: properly set num banks for fusion asics

Needed by userspace for 2D tiled buffer alignment

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

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 864e853..34cd5a8 100644 (file)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1933,8 +1933,12 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
                rdev->config.evergreen.tile_config |= (3 << 0);
                break;
        }
-       rdev->config.evergreen.tile_config |=
-               ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
+       /* num banks is 8 on all fusion asics */
+       if (rdev->flags & RADEON_IS_IGP)
+               rdev->config.evergreen.tile_config |= 8 << 4;
+       else
+               rdev->config.evergreen.tile_config |=
+                       ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
        rdev->config.evergreen.tile_config |=
                ((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT) << 8;
        rdev->config.evergreen.tile_config |=