gma500: handle poulsbo cursor restriction

Poulsbo needs a physical address in the cursor base register. We allocate a
stolen memory buffer and copy the cursor image provided by userspace into it.
When/If we get our own userspace driver we can map this stolen memory directly.
The patch also adds a mark in chip ops so we can identify devices that has this
requirement.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
index a1b0c0bce972..1bd115ecefe1 100644
--- a/drivers/gpu/drm/gma500/psb_drv.h
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -655,6 +655,7 @@ struct psb_ops {
         int sgx_offset;         /* Base offset of SGX device */
         int hdmi_mask;          /* Mask of HDMI CRTCs */
         int lvds_mask;          /* Mask of LVDS CRTCs */
+        int cursor_needs_phys;  /* If cursor base reg need physical address */
 
         /* Sub functions */
         struct drm_crtc_helper_funcs const *crtc_helper;