diff options
Diffstat (limited to 'include/asm-powerpc/paca.h')
| -rw-r--r-- | include/asm-powerpc/paca.h | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h deleted file mode 100644 index 7b56444..0000000 --- a/include/asm-powerpc/paca.h +++ /dev/null @@ -1,114 +0,0 @@ -/* - * include/asm-powerpc/paca.h - * - * This control block defines the PACA which defines the processor - * specific data for each logical processor on the system. - * There are some pointers defined that are utilized by PLIC. - * - * C 2001 PPC 64 Team, IBM Corp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#ifndef _ASM_POWERPC_PACA_H -#define _ASM_POWERPC_PACA_H -#ifdef __KERNEL__ - -#include <asm/types.h> -#include <asm/lppaca.h> -#include <asm/mmu.h> - -register struct paca_struct *local_paca asm("r13"); - -#if defined(CONFIG_DEBUG_PREEMPT) && defined(CONFIG_SMP) -extern unsigned int debug_smp_processor_id(void); /* from linux/smp.h */ -/* - * Add standard checks that preemption cannot occur when using get_paca(): - * otherwise the paca_struct it points to may be the wrong one just after. - */ -#define get_paca() ((void) debug_smp_processor_id(), local_paca) -#else -#define get_paca() local_paca -#endif - -#define get_lppaca() (get_paca()->lppaca_ptr) -#define get_slb_shadow() (get_paca()->slb_shadow_ptr) - -struct task_struct; - -/* - * Defines the layout of the paca. - * - * This structure is not directly accessed by firmware or the service - * processor. - */ -struct paca_struct { - /* - * Because hw_cpu_id, unlike other paca fields, is accessed - * routinely from other CPUs (from the IRQ code), we stick to - * read-only (after boot) fields in the first cacheline to - * avoid cacheline bouncing. - */ - - struct lppaca *lppaca_ptr; /* Pointer to LpPaca for PLIC */ - - /* - * MAGIC: the spinlock functions in arch/powerpc/lib/locks.c - * load lock_token and paca_index with a single lwz - * instruction. They must travel together and be properly - * aligned. - */ - u16 lock_token; /* Constant 0x8000, used in locks */ - u16 paca_index; /* Logical processor number */ - - u64 kernel_toc; /* Kernel TOC address */ - u64 stab_real; /* Absolute address of segment table */ - u64 stab_addr; /* Virtual address of segment table */ - void *emergency_sp; /* pointer to emergency stack */ - u64 data_offset; /* per cpu data offset */ - s16 hw_cpu_id; /* Physical processor number */ - u8 cpu_start; /* At startup, processor spins until */ - /* this becomes non-zero. */ - struct slb_shadow *slb_shadow_ptr; - - /* - * Now, starting in cacheline 2, the exception save areas - */ - /* used for most interrupts/exceptions */ - u64 exgen[10] __attribute__((aligned(0x80))); - u64 exmc[10]; /* used for machine checks */ - u64 exslb[10]; /* used for SLB/segment table misses - * on the linear mapping */ - - mm_context_t context; - u16 vmalloc_sllp; - u16 slb_cache_ptr; - u16 slb_cache[SLB_CACHE_ENTRIES]; - - /* - * then miscellaneous read-write fields - */ - struct task_struct *__current; /* Pointer to current */ - u64 kstack; /* Saved Kernel stack addr */ - u64 stab_rr; /* stab/slb round-robin counter */ - u64 saved_r1; /* r1 save for RTAS calls */ - u64 saved_msr; /* MSR saved here by enter_rtas */ - u16 trap_save; /* Used when bad stack is encountered */ - u8 soft_enabled; /* irq soft-enable flag */ - u8 hard_enabled; /* set if irqs are enabled in MSR */ - u8 io_sync; /* writel() needs spin_unlock sync */ - - /* Stuff for accurate time accounting */ - u64 user_time; /* accumulated usermode TB ticks */ - u64 system_time; /* accumulated system TB ticks */ - u64 startpurr; /* PURR/TB value snapshot */ - u64 startspurr; /* SPURR value snapshot */ -}; - -extern struct paca_struct paca[]; -extern void initialise_pacas(void); - -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_PACA_H */ |
