complier.h: add __always_inline and use it in code base

Add a __always_inline macro that wraps __attribute__((always_inline))
and replace current users with the macro, excluding files under
src/vendorcode.

Change-Id: Ic57e474c1d2ca7cc0405ac677869f78a28d3e529
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/28587
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@google.com>

2 files changed, 10 insertions, 7 deletions

diff --git a/src/arch/riscv/include/arch/hlt.h b/src/arch/riscv/include/arch/hlt.h
index da0277821b..2ea2e01f50 100644
--- a/src/arch/riscv/include/arch/hlt.h
+++ b/src/arch/riscv/include/arch/hlt.h
@@ -11,7 +11,9 @@
  * GNU General Public License for more details.
  */
 
-static inline __attribute__((always_inline)) void hlt(void)
+#include <compiler.h>
+
+static __always_inline void hlt(void)
 {
 	while (1);
 }
diff --git a/src/arch/riscv/include/arch/io.h b/src/arch/riscv/include/arch/io.h
index a19f4b5334..9f672f9505 100644
--- a/src/arch/riscv/include/arch/io.h
+++ b/src/arch/riscv/include/arch/io.h
@@ -15,33 +15,34 @@
 #define _ASM_IO_H
 
 #include <stdint.h>
+#include <compiler.h>
 
-static inline __attribute__((always_inline)) uint8_t read8(const volatile void *addr)
+static __always_inline uint8_t read8(const volatile void *addr)
 {
 	return *((volatile uint8_t *)(addr));
 }
 
-static inline __attribute__((always_inline)) uint16_t read16(const volatile void *addr)
+static __always_inline uint16_t read16(const volatile void *addr)
 {
 	return *((volatile uint16_t *)(addr));
 }
 
-static inline __attribute__((always_inline)) uint32_t read32(const volatile void *addr)
+static __always_inline uint32_t read32(const volatile void *addr)
 {
 	return *((volatile uint32_t *)(addr));
 }
 
-static inline __attribute__((always_inline)) void write8(volatile void *addr, uint8_t value)
+static __always_inline void write8(volatile void *addr, uint8_t value)
 {
 	*((volatile uint8_t *)(addr)) = value;
 }
 
-static inline __attribute__((always_inline)) void write16(volatile void *addr, uint16_t value)
+static __always_inline void write16(volatile void *addr, uint16_t value)
 {
 	*((volatile uint16_t *)(addr)) = value;
 }
 
-static inline __attribute__((always_inline)) void write32(volatile void *addr, uint32_t value)
+static __always_inline void write32(volatile void *addr, uint32_t value)
 {
 	*((volatile uint32_t *)(addr)) = value;
 }