X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-sh%2Fprocessor.h;h=e29f2abb92defc7f9d24a6d8d4f0b3a9be7d365e;hb=refs%2Fheads%2Fvserver;hp=786d41c3663c5da98621ad4fd245413b183137c0;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index 786d41c36..e29f2abb9 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -7,12 +7,14 @@ #ifndef __ASM_SH_PROCESSOR_H #define __ASM_SH_PROCESSOR_H +#ifdef __KERNEL__ +#include #include #include #include -#include #include +#include /* * Default implementation of macro that returns current @@ -25,44 +27,52 @@ #define CCN_CVR 0xff000040 #define CCN_PRR 0xff000044 +const char *get_cpu_subtype(void); + /* * CPU type and hardware bug flags. Kept separately for each CPU. * * Each one of these also needs a CONFIG_CPU_SUBTYPE_xxx entry - * in arch/sh/Kconfig, as well as an entry in arch/sh/kernel/setup.c + * in arch/sh/mm/Kconfig, as well as an entry in arch/sh/kernel/setup.c * for parsing the subtype in get_cpu_subtype(). */ enum cpu_type { /* SH-2 types */ - CPU_SH7604, + CPU_SH7604, CPU_SH7619, + + /* SH-2A types */ + CPU_SH7206, /* SH-3 types */ - CPU_SH7707, CPU_SH7708, CPU_SH7708S, CPU_SH7708R, CPU_SH7709, - CPU_SH7709A, CPU_SH7729, CPU_SH7300, + CPU_SH7705, CPU_SH7706, CPU_SH7707, + CPU_SH7708, CPU_SH7708S, CPU_SH7708R, + CPU_SH7709, CPU_SH7709A, CPU_SH7710, + CPU_SH7729, CPU_SH7300, /* SH-4 types */ CPU_SH7750, CPU_SH7750S, CPU_SH7750R, CPU_SH7751, CPU_SH7751R, CPU_SH7760, CPU_ST40RA, CPU_ST40GX1, CPU_SH4_202, CPU_SH4_501, + /* SH-4A types */ + CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785, + + /* SH4AL-DSP types */ + CPU_SH73180, CPU_SH7343, CPU_SH7722, + /* Unknown subtype */ CPU_SH_NONE }; struct sh_cpuinfo { - enum cpu_type type; - char hard_math; + unsigned int type; unsigned long loops_per_jiffy; - unsigned int cpu_clock, master_clock, bus_clock, module_clock; -#ifdef CONFIG_CPU_SUBTYPE_ST40STB1 - unsigned int memory_clock; -#endif - - struct cache_info icache; - struct cache_info dcache; + struct cache_info icache; /* Primary I-cache */ + struct cache_info dcache; /* Primary D-cache */ + struct cache_info scache; /* Secondary cache */ unsigned long flags; -}; +} __attribute__ ((aligned(SMP_CACHE_BYTES))); extern struct sh_cpuinfo boot_cpu_data; @@ -129,38 +139,27 @@ union sh_fpu_union { struct sh_fpu_soft_struct soft; }; -/* - * Processor flags - */ - -#define CPU_HAS_FPU 0x0001 /* Hardware FPU support */ -#define CPU_HAS_P2_FLUSH_BUG 0x0002 /* Need to flush the cache in P2 area */ -#define CPU_HAS_MMU_PAGE_ASSOC 0x0004 /* SH3: TLB way selection bit support */ -#define CPU_HAS_DSP 0x0008 /* SH-DSP: DSP support */ - struct thread_struct { + /* Saved registers when thread is descheduled */ unsigned long sp; unsigned long pc; - unsigned long trap_no, error_code; - unsigned long address; - /* Hardware debugging registers may come here */ + /* Hardware debugging registers */ unsigned long ubc_pc; /* floating point info */ union sh_fpu_union fpu; }; +typedef struct { + unsigned long seg; +} mm_segment_t; + /* Count of active tasks with UBC settings */ extern int ubc_usercnt; #define INIT_THREAD { \ - sizeof(init_stack) + (long) &init_stack, /* sp */ \ - 0, /* pc */ \ - 0, 0, \ - 0, \ - 0, \ - {{{0,}},} /* fpu state */ \ + .sp = sizeof(init_stack) + (long) &init_stack, \ } /* @@ -168,7 +167,7 @@ extern int ubc_usercnt; */ #define start_thread(regs, new_pc, new_sp) \ set_fs(USER_DS); \ - regs->pr = 0; \ + regs->pr = 0; \ regs->sr = SR_FD; /* User mode. */ \ regs->pc = new_pc; \ regs->regs[15] = new_sp @@ -188,12 +187,6 @@ extern void release_thread(struct task_struct *); */ extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); -/* - * Bus types - */ -#define MCA_bus 0 -#define MCA_bus__is_a_macro /* for versions in ksyms.c */ - /* Copy and release all segment info associated with a VM */ #define copy_segments(p, mm) do { } while(0) #define release_segments(mm) do { } while(0) @@ -242,16 +235,16 @@ extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs); #define save_fpu(tsk) do { } while (0) #endif -#define unlazy_fpu(tsk, regs) do { \ +#define unlazy_fpu(tsk, regs) do { \ if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ - save_fpu(tsk, regs); \ + save_fpu(tsk, regs); \ } \ } while (0) -#define clear_fpu(tsk, regs) do { \ - if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ - clear_tsk_thread_flag(tsk, TIF_USEDFPU); \ - release_fpu(regs); \ +#define clear_fpu(tsk, regs) do { \ + if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ + clear_tsk_thread_flag(tsk, TIF_USEDFPU); \ + release_fpu(regs); \ } \ } while (0) @@ -266,11 +259,34 @@ extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs); */ #define thread_saved_pc(tsk) (tsk->thread.pc) +void show_trace(struct task_struct *tsk, unsigned long *sp, + struct pt_regs *regs); extern unsigned long get_wchan(struct task_struct *p); -#define KSTK_EIP(tsk) ((tsk)->thread.pc) -#define KSTK_ESP(tsk) ((tsk)->thread.sp) +#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc) +#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[15]) -#define cpu_relax() __asm__ __volatile__ ("sleep" : : : "memory") +#define cpu_sleep() __asm__ __volatile__ ("sleep" : : : "memory") +#define cpu_relax() barrier() + +#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH3) || \ + defined(CONFIG_CPU_SH4) +#define PREFETCH_STRIDE L1_CACHE_BYTES +#define ARCH_HAS_PREFETCH +#define ARCH_HAS_PREFETCHW +static inline void prefetch(void *x) +{ + __asm__ __volatile__ ("pref @%0\n\t" : : "r" (x) : "memory"); +} + +#define prefetchw(x) prefetch(x) +#endif + +#ifdef CONFIG_VSYSCALL +extern int vsyscall_init(void); +#else +#define vsyscall_init() do { } while (0) +#endif +#endif /* __KERNEL__ */ #endif /* __ASM_SH_PROCESSOR_H */