drm: fixup r300 scratch on BE machines

This fixes the r300 scratch stuff to work on PPC,
from Ben Herrenschmidt on IRC.

Signed-off-by: Dave Airlie <airlied@linux.ie>

diff --git a/drivers/char/drm/r300_cmdbuf.c b/drivers/char/drm/r300_cmdbuf.c
index b108c7f..26bdf2c 100644 (file)
--- a/drivers/char/drm/r300_cmdbuf.c
+++ b/drivers/char/drm/r300_cmdbuf.c
@@ -723,7 +723,7 @@ static int r300_scratch(drm_radeon_private_t *dev_priv,
        
        dev_priv->scratch_ages[header.scratch.reg]++;
        
-       ref_age_base = *(u32 **)cmdbuf->buf;
+       ref_age_base =  (u32 *)(unsigned long)*((uint64_t *)cmdbuf->buf);
        
        cmdbuf->buf += sizeof(u64);
        cmdbuf->bufsz -= sizeof(u64);