[PATCH v2 1/2] lib: s390x: add PSW and PSW_CUR_MASK macros

[Claudio Imbrenda <imbrenda@linux.ibm.com>]

Since a lot of code starts new CPUs using the current PSW mask, add two
macros to streamline the creation of generic PSWs and PSWs with the
current program mask.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
---
 lib/s390x/asm/arch_def.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h
index 783a7eaa..43137d5f 100644
--- a/lib/s390x/asm/arch_def.h
+++ b/lib/s390x/asm/arch_def.h
@@ -41,6 +41,8 @@ struct psw {
 	uint64_t	addr;
 };
 
+#define PSW(m, a) ((struct psw){ .mask = (m), .addr = (uint64_t)(a) })
+
 struct short_psw {
 	uint32_t	mask;
 	uint32_t	addr;
@@ -321,6 +323,8 @@ static inline uint64_t extract_psw_mask(void)
 	return (uint64_t) mask_upper << 32 | mask_lower;
 }
 
+#define PSW_CUR_MASK(addr) PSW(extract_psw_mask(), (addr))
+
 static inline void load_psw_mask(uint64_t mask)
 {
 	struct psw psw = {
-- 
2.38.1