diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2001-03-28 01:35:12 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2001-03-28 01:35:12 +0000 |
| commit | 0b9049739779f6052eb8069f3dde7c3a7f14a591 (patch) | |
| tree | 9630c1ea481dd1c429a2692067316237957d6e07 /include/asm-mips/spinlock.h | |
| parent | 12e00f34ea0db712ce70bc3eed334c81b3d6a344 (diff) | |
SMP for 32-bit kernel, support for Sibyte SB1. Patch from Justin
with minor changes by me.
Diffstat (limited to 'include/asm-mips/spinlock.h')
| -rw-r--r-- | include/asm-mips/spinlock.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-mips/spinlock.h b/include/asm-mips/spinlock.h index 4ac282bbc..61ebfa660 100644 --- a/include/asm-mips/spinlock.h +++ b/include/asm-mips/spinlock.h @@ -21,6 +21,9 @@ typedef struct { #define spin_lock_init(x) do { (x)->lock = 0; } while(0); +#define spin_is_locked(x) ((x)->lock != 0) +#define spin_unlock_wait(x) ({ do { barrier(); } while ((x)->lock); }) + /* * Simple spin lock operations. There are two variants, one clears IRQ's * on the local processor, one does not. |