diff options
| author | Ian Moffett <ian@osmora.org> | 2025-03-07 11:00:11 -0500 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2025-03-07 11:07:09 -0500 |
| commit | ab65f0afebaeaeac1d456736221e648f33dd4fb2 (patch) | |
| tree | 3f13bd90674b2ba87e4d3ddce456187234518db7 /sys | |
| parent | 45c2a74dbda3d6d0d17e78ae916a528204cdd71b (diff) | |
kernel: cdefs: Add __barrier() define
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/include/sys/cdefs.h | 1 | ||||
| -rw-r--r-- | sys/include/sys/mmio.h | 4 |
2 files changed, 3 insertions, 2 deletions
diff --git a/sys/include/sys/cdefs.h b/sys/include/sys/cdefs.h index 4103896..37e15d7 100644 --- a/sys/include/sys/cdefs.h +++ b/sys/include/sys/cdefs.h @@ -42,6 +42,7 @@ #define __likely(exp) __builtin_expect(((exp) != 0), 1) #define __unlikely(exp) __builtin_expect(((exp) != 0), 0) #define __static_assert _Static_assert +#define __barrier() __ASMV("" ::: "memory") #if defined(__cplusplus) #define __BEGIN_DECLS extern "C" { diff --git a/sys/include/sys/mmio.h b/sys/include/sys/mmio.h index cdc6a46..9f6e4e2 100644 --- a/sys/include/sys/mmio.h +++ b/sys/include/sys/mmio.h @@ -67,7 +67,7 @@ tmp += VM_HIGHER_HALF; \ } \ *(volatile TYPE *)tmp = val; \ - __ASMV("" ::: "memory"); \ + __barrier(); \ } /* @@ -86,7 +86,7 @@ tmp += VM_HIGHER_HALF; \ } \ \ - __ASMV("" ::: "memory"); \ + __barrier(); \ return *(volatile TYPE *)tmp; \ } |