[Intel-xe] [PATCH 2/2] drm/xe: Use FIELD_PREP/FIELD_GET for tile id encoding

[Lucas De Marchi]

Use FIELD_PREP()/FIELD_GET() to encode the tile id into flags. Besides
protecting for eventual overflow it also makes it easier to see a new
flag can't be added as BIT(7).

Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/xe/xe_vm_types.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_vm_types.h b/drivers/gpu/drm/xe/xe_vm_types.h
index 223b8f84c546..379c5d617d72 100644
--- a/drivers/gpu/drm/xe/xe_vm_types.h
+++ b/drivers/gpu/drm/xe/xe_vm_types.h
@@ -150,8 +150,8 @@ struct xe_vm {
 #define XE_VM_FLAG_SCRATCH_PAGE		BIT(4)
 #define XE_VM_FLAG_FAULT_MODE		BIT(5)
 #define XE_VM_FLAG_BANNED		BIT(6)
-#define XE_VM_FLAG_TILE_ID(flags)	(((flags) >> 7) & 0x3)
-#define XE_VM_FLAG_SET_TILE_ID(tile)	((tile)->id << 7)
+#define XE_VM_FLAG_TILE_ID(flags)	FIELD_GET(GENMASK(8, 7), flags)
+#define XE_VM_FLAG_SET_TILE_ID(tile)	FIELD_PREP(GENMASK(8, 7), (tile)->id)
 	unsigned long flags;
 
 	/** @composite_fence_ctx: context composite fence */
-- 
2.40.1