diff options
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/lppaca.h | 6 | ||||
| -rw-r--r-- | include/asm-powerpc/paca.h | 14 | ||||
| -rw-r--r-- | include/asm-powerpc/spinlock.h | 2 | ||||
| -rw-r--r-- | include/asm-powerpc/time.h | 5 |
4 files changed, 9 insertions, 18 deletions
diff --git a/include/asm-powerpc/lppaca.h b/include/asm-powerpc/lppaca.h index ff82ea7c4829..cd9f11f1ef14 100644 --- a/include/asm-powerpc/lppaca.h +++ b/include/asm-powerpc/lppaca.h @@ -29,7 +29,9 @@ //---------------------------------------------------------------------------- #include <asm/types.h> -struct lppaca { +/* The Hypervisor barfs if the lppaca crosses a page boundary. A 1k + * alignment is sufficient to prevent this */ +struct __attribute__((__aligned__(0x400))) lppaca { //============================================================================= // CACHE_LINE_1 0x0000 - 0x007F Contains read-only data // NOTE: The xDynXyz fields are fields that will be dynamically changed by @@ -129,5 +131,7 @@ struct lppaca { u8 pmc_save_area[256]; // PMC interrupt Area x00-xFF }; +extern struct lppaca lppaca[]; + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_LPPACA_H */ diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h index a64b4d425dab..c9add8f1ad94 100644 --- a/include/asm-powerpc/paca.h +++ b/include/asm-powerpc/paca.h @@ -23,6 +23,7 @@ register struct paca_struct *local_paca asm("r13"); #define get_paca() local_paca +#define get_lppaca() (get_paca()->lppaca_ptr) struct task_struct; @@ -95,19 +96,6 @@ struct paca_struct { u64 saved_r1; /* r1 save for RTAS calls */ u64 saved_msr; /* MSR saved here by enter_rtas */ u8 proc_enabled; /* irq soft-enable flag */ - - /* - * iSeries structure which the hypervisor knows about - - * this structure should not cross a page boundary. - * The vpa_init/register_vpa call is now known to fail if the - * lppaca structure crosses a page boundary. - * The lppaca is also used on POWER5 pSeries boxes. - * The lppaca is 640 bytes long, and cannot readily change - * since the hypervisor knows its layout, so a 1kB - * alignment will suffice to ensure that it doesn't - * cross a page boundary. - */ - struct lppaca lppaca __attribute__((__aligned__(0x400))); }; extern struct paca_struct paca[]; diff --git a/include/asm-powerpc/spinlock.h b/include/asm-powerpc/spinlock.h index 754900901cd8..26b8744ed529 100644 --- a/include/asm-powerpc/spinlock.h +++ b/include/asm-powerpc/spinlock.h @@ -80,7 +80,7 @@ static int __inline__ __raw_spin_trylock(raw_spinlock_t *lock) #if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES) /* We only yield to the hypervisor if we are in shared processor mode */ -#define SHARED_PROCESSOR (get_paca()->lppaca.shared_proc) +#define SHARED_PROCESSOR (get_lppaca()->shared_proc) extern void __spin_yield(raw_spinlock_t *lock); extern void __rw_yield(raw_rwlock_t *lock); #else /* SPLPAR || ISERIES */ diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h index d9b86a17271b..baddc9ab57ad 100644 --- a/include/asm-powerpc/time.h +++ b/include/asm-powerpc/time.h @@ -175,11 +175,10 @@ static inline void set_dec(int val) set_dec_cpu6(val); #else #ifdef CONFIG_PPC_ISERIES - struct paca_struct *lpaca = get_paca(); int cur_dec; - if (lpaca->lppaca.shared_proc) { - lpaca->lppaca.virtual_decr = val; + if (get_lppaca()->shared_proc) { + get_lppaca()->virtual_decr = val; cur_dec = get_dec(); if (cur_dec > val) HvCall_setVirtualDecr(); |