diff options
Diffstat (limited to 'arch/sparc/include/asm/system_64.h')
| -rw-r--r-- | arch/sparc/include/asm/system_64.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/system_64.h b/arch/sparc/include/asm/system_64.h index 6c077816ab28..d47a98e66972 100644 --- a/arch/sparc/include/asm/system_64.h +++ b/arch/sparc/include/asm/system_64.h @@ -29,6 +29,10 @@ enum sparc_cpu { /* This cannot ever be a sun4c :) That's just history. */ #define ARCH_SUN4C 0 +extern const char *sparc_cpu_type; +extern const char *sparc_fpu_type; +extern const char *sparc_pmu_type; + extern char reboot_command[]; /* These are here in an effort to more fully work around Spitfire Errata @@ -59,6 +63,10 @@ do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \ : : : "memory"); \ } while (0) +/* The kernel always executes in TSO memory model these days, + * and furthermore most sparc64 chips implement more stringent + * memory ordering than required by the specifications. + */ #define mb() membar_safe("#StoreLoad") #define rmb() __asm__ __volatile__("":::"memory") #define wmb() __asm__ __volatile__("":::"memory") |