Signed-off-by: Aleksey Kuleshov rndfax@yandex.ru --- xf86drm.h | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/xf86drm.h b/xf86drm.h index 40c55c9..2ba75d9 100644 --- a/xf86drm.h +++ b/xf86drm.h @@ -462,6 +462,27 @@ do { register unsigned int __old __asm("o0"); \ : "cr0", "memory"); \ } while (0)
+#elif defined(__mips__) + +#define DRM_CAS(lock, old, new, ret) \ + do { \ + int tmp; \ + asm volatile( \ + ".set push;" \ + ".set noreorder;" \ + ".set mips32;" \ + "ll %[_tmp], %[_lock];" \ + "bne %[_tmp], %[_old], 1f;" \ + "li %[_ret], 1;" \ + "sc %[_new], %[_lock];" \ + "xori %[_ret], %[_new], 1;" \ + "1:" \ + ".set pop;" \ + : [_lock] "=m" (__drm_dummy_lock(lock)), \ + [_tmp] "=&r" (tmp), [_ret] "=&r" (ret) \ + : [_old] "r" (old), [_new] "r" (new)); \ + } while (0) + #endif /* architecture */ #endif /* __GNUC__ >= 2 */
@@ -471,7 +492,7 @@ do { register unsigned int __old __asm("o0"); \
#if defined(__alpha__) #define DRM_CAS_RESULT(_result) long _result -#elif defined(__powerpc__) +#elif defined(__powerpc__) || defined(__mips__) #define DRM_CAS_RESULT(_result) int _result #else #define DRM_CAS_RESULT(_result) char _result