[PATCH v7 1/4] drm/xe: Define xe_reg_is_valid

[Karthik Poosa]

Add a function to check if struct xe_reg has valid address.

v2:
 - Rebase.
 - Make xe_reg_is_valid as inline function instead of a macro. (Badal).
 - Update commit msg.

Signed-off-by: Karthik Poosa <karthik.poosa at intel.com>
Suggested-by: Lucas De Marchi <lucas.demarchi at intel.com>
Cc: Badal Nilawar <badal.nilawar at intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar at intel.com>
---
 drivers/gpu/drm/xe/regs/xe_reg_defs.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/xe/regs/xe_reg_defs.h b/drivers/gpu/drm/xe/regs/xe_reg_defs.h
index c89ef2b79a3f..23f7dc5bbe99 100644
--- a/drivers/gpu/drm/xe/regs/xe_reg_defs.h
+++ b/drivers/gpu/drm/xe/regs/xe_reg_defs.h
@@ -131,4 +131,9 @@ struct xe_reg_mcr {
 				 .__reg = XE_REG_INITIALIZER(r_,  ##__VA_ARGS__, .mcr = 1)	\
 				 })
 
+static inline bool xe_reg_is_valid(struct xe_reg r)
+{
+	return r.addr;
+}
+
 #endif
-- 
2.25.1