drm: radeon: Fix ring_rptr accesses.
The memory behind ring_rptr can either be in ioremapped memory
or a vmalloc() normal kernel memory buffer.
However, the code unconditionally uses DRM_{READ,WRITE}32() (and thus
readl() and writel()) to access it.
Basically, if RADEON_IS_AGP then it's ioremap()'d memory else it's
vmalloc'd memory.
Adjust all of the ring_rptr access code as needed.
While we're here, kill the 'scratch' pointer in drm_radeon_private.
It's only used in the one place where it is initialized.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/gpu/drm/radeon/radeon_state.c b/drivers/gpu/drm/radeon/radeon_state.c
index ef940a0..03fea43 100644
--- a/drivers/gpu/drm/radeon/radeon_state.c
+++ b/drivers/gpu/drm/radeon/radeon_state.c
@@ -3010,14 +3010,14 @@
break;
case RADEON_PARAM_LAST_FRAME:
dev_priv->stats.last_frame_reads++;
- value = GET_SCRATCH(0);
+ value = GET_SCRATCH(dev_priv, 0);
break;
case RADEON_PARAM_LAST_DISPATCH:
- value = GET_SCRATCH(1);
+ value = GET_SCRATCH(dev_priv, 1);
break;
case RADEON_PARAM_LAST_CLEAR:
dev_priv->stats.last_clear_reads++;
- value = GET_SCRATCH(2);
+ value = GET_SCRATCH(dev_priv, 2);
break;
case RADEON_PARAM_IRQ_NR:
value = drm_dev_to_irq(dev);