drm/radeon: Save and restore bios scratch regs during S/R

[airlied:- adapted slightly in naming]

Signed-off-by: Yang Zhao <yang@yangman.ca>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index ff9e4171559a..5bfc05612ac2 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -75,6 +75,7 @@ extern int radeon_tv;
 #define RADEON_IB_POOL_SIZE             16
 #define RADEON_DEBUGFS_MAX_NUM_FILES    32
 #define RADEONFB_CONN_LIMIT             4
+#define RADEON_BIOS_NUM_SCRATCH         8
 
 enum radeon_family {
         CHIP_R100,
@@ -783,6 +784,7 @@ struct radeon_device {
         struct radeon_asic              *asic;
         struct radeon_gem               gem;
         struct radeon_pm                pm;
+        uint32_t                        bios_scratch[RADEON_BIOS_NUM_SCRATCH];
         struct mutex                    cs_mutex;
         struct radeon_wb                wb;
         struct radeon_dummy_page        dummy_page;