[Intel-gfx] [PATCH] drm/i915/gen9: Correct max save/restore register count during gpu reset with GuC

[Arun Siluvery]

In GuC submission mode, driver has to provide a list of registers to be
save/restored during gpu reset, make the max no. of registers value consistent
with that of the value defined in FW. If they are not in sync then register
save/restore during gpu reset won't work as expected.

Cc: Alex Dai <yu.dai at intel.com>
Cc: Dave Gordon <david.s.gordon at intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_guc_fwif.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_fwif.h b/drivers/gpu/drm/i915/intel_guc_fwif.h
index 130d94c..1d8048b 100644
--- a/drivers/gpu/drm/i915/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/intel_guc_fwif.h
@@ -370,7 +370,7 @@ struct guc_policies {
 #define GUC_REGSET_SAVE_DEFAULT_VALUE	0x8
 #define GUC_REGSET_SAVE_CURRENT_VALUE	0x10
 
-#define GUC_REGSET_MAX_REGISTERS	20
+#define GUC_REGSET_MAX_REGISTERS	25
 #define GUC_MMIO_WHITE_LIST_START	0x24d0
 #define GUC_MMIO_WHITE_LIST_MAX		12
 #define GUC_S3_SAVE_SPACE_PAGES		10
-- 
1.9.1