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 7b564444ff61..000000000000 --- a/include/asm-powerpc/paca.h +++ /dev/null | |||
| @@ -1,114 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * include/asm-powerpc/paca.h | ||
| 3 | * | ||
| 4 | * This control block defines the PACA which defines the processor | ||
| 5 | * specific data for each logical processor on the system. | ||
| 6 | * There are some pointers defined that are utilized by PLIC. | ||
| 7 | * | ||
| 8 | * C 2001 PPC 64 Team, IBM Corp | ||
| 9 | * | ||
| 10 | * This program is free software; you can redistribute it and/or | ||
| 11 | * modify it under the terms of the GNU General Public License | ||
| 12 | * as published by the Free Software Foundation; either version | ||
| 13 | * 2 of the License, or (at your option) any later version. | ||
| 14 | */ | ||
| 15 | #ifndef _ASM_POWERPC_PACA_H | ||
| 16 | #define _ASM_POWERPC_PACA_H | ||
| 17 | #ifdef __KERNEL__ | ||
| 18 | |||
| 19 | #include <asm/types.h> | ||
| 20 | #include <asm/lppaca.h> | ||
| 21 | #include <asm/mmu.h> | ||
| 22 | |||
| 23 | register struct paca_struct *local_paca asm("r13"); | ||
| 24 | |||
| 25 | #if defined(CONFIG_DEBUG_PREEMPT) && defined(CONFIG_SMP) | ||
| 26 | extern unsigned int debug_smp_processor_id(void); /* from linux/smp.h */ | ||
| 27 | /* | ||
| 28 | * Add standard checks that preemption cannot occur when using get_paca(): | ||
| 29 | * otherwise the paca_struct it points to may be the wrong one just after. | ||
| 30 | */ | ||
| 31 | #define get_paca() ((void) debug_smp_processor_id(), local_paca) | ||
| 32 | #else | ||
| 33 | #define get_paca() local_paca | ||
| 34 | #endif | ||
| 35 | |||
| 36 | #define get_lppaca() (get_paca()->lppaca_ptr) | ||
| 37 | #define get_slb_shadow() (get_paca()->slb_shadow_ptr) | ||
| 38 | |||
| 39 | struct task_struct; | ||
| 40 | |||
| 41 | /* | ||
| 42 | * Defines the layout of the paca. | ||
| 43 | * | ||
| 44 | * This structure is not directly accessed by firmware or the service | ||
| 45 | * processor. | ||
| 46 | */ | ||
| 47 | struct paca_struct { | ||
| 48 | /* | ||
| 49 | * Because hw_cpu_id, unlike other paca fields, is accessed | ||
| 50 | * routinely from other CPUs (from the IRQ code), we stick to | ||
| 51 | * read-only (after boot) fields in the first cacheline to | ||
| 52 | * avoid cacheline bouncing. | ||
| 53 | */ | ||
| 54 | |||
| 55 | struct lppaca *lppaca_ptr; /* Pointer to LpPaca for PLIC */ | ||
| 56 | |||
| 57 | /* | ||
| 58 | * MAGIC: the spinlock functions in arch/powerpc/lib/locks.c | ||
| 59 | * load lock_token and paca_index with a single lwz | ||
| 60 | * instruction. They must travel together and be properly | ||
| 61 | * aligned. | ||
| 62 | */ | ||
| 63 | u16 lock_token; /* Constant 0x8000, used in locks */ | ||
| 64 | u16 paca_index; /* Logical processor number */ | ||
| 65 | |||
| 66 | u64 kernel_toc; /* Kernel TOC address */ | ||
| 67 | u64 stab_real; /* Absolute address of segment table */ | ||
| 68 | u64 stab_addr; /* Virtual address of segment table */ | ||
| 69 | void *emergency_sp; /* pointer to emergency stack */ | ||
| 70 | u64 data_offset; /* per cpu data offset */ | ||
| 71 | s16 hw_cpu_id; /* Physical processor number */ | ||
| 72 | u8 cpu_start; /* At startup, processor spins until */ | ||
| 73 | /* this becomes non-zero. */ | ||
| 74 | struct slb_shadow *slb_shadow_ptr; | ||
| 75 | |||
| 76 | /* | ||
| 77 | * Now, starting in cacheline 2, the exception save areas | ||
| 78 | */ | ||
| 79 | /* used for most interrupts/exceptions */ | ||
| 80 | u64 exgen[10] __attribute__((aligned(0x80))); | ||
| 81 | u64 exmc[10]; /* used for machine checks */ | ||
| 82 | u64 exslb[10]; /* used for SLB/segment table misses | ||
| 83 | * on the linear mapping */ | ||
| 84 | |||
| 85 | mm_context_t context; | ||
| 86 | u16 vmalloc_sllp; | ||
| 87 | u16 slb_cache_ptr; | ||
| 88 | u16 slb_cache[SLB_CACHE_ENTRIES]; | ||
| 89 | |||
| 90 | /* | ||
| 91 | * then miscellaneous read-write fields | ||
| 92 | */ | ||
| 93 | struct task_struct *__current; /* Pointer to current */ | ||
| 94 | u64 kstack; /* Saved Kernel stack addr */ | ||
| 95 | u64 stab_rr; /* stab/slb round-robin counter */ | ||
| 96 | u64 saved_r1; /* r1 save for RTAS calls */ | ||
| 97 | u64 saved_msr; /* MSR saved here by enter_rtas */ | ||
| 98 | u16 trap_save; /* Used when bad stack is encountered */ | ||
| 99 | u8 soft_enabled; /* irq soft-enable flag */ | ||
| 100 | u8 hard_enabled; /* set if irqs are enabled in MSR */ | ||
| 101 | u8 io_sync; /* writel() needs spin_unlock sync */ | ||
| 102 | |||
| 103 | /* Stuff for accurate time accounting */ | ||
| 104 | u64 user_time; /* accumulated usermode TB ticks */ | ||
| 105 | u64 system_time; /* accumulated system TB ticks */ | ||
| 106 | u64 startpurr; /* PURR/TB value snapshot */ | ||
| 107 | u64 startspurr; /* SPURR value snapshot */ | ||
| 108 | }; | ||
| 109 | |||
| 110 | extern struct paca_struct paca[]; | ||
| 111 | extern void initialise_pacas(void); | ||
| 112 | |||
| 113 | #endif /* __KERNEL__ */ | ||
| 114 | #endif /* _ASM_POWERPC_PACA_H */ | ||