-/*
- * include/asm-sh/processor.h
- *
- * Copyright (C) 1999, 2000 Niibe Yutaka
- * Copyright (C) 2002, 2003 Paul Mundt
- */
-
#ifndef __ASM_SH_PROCESSOR_H
#define __ASM_SH_PROCESSOR_H
-#ifdef __KERNEL__
-
-#include <linux/compiler.h>
-#include <asm/page.h>
-#include <asm/types.h>
-#include <asm/cache.h>
-#include <asm/ptrace.h>
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ void *pc; __asm__("mova 1f, %0\n1:":"=z" (pc)); pc; })
-
-/* Core Processor Version Register */
-#define CCN_PVR 0xff000030
-#define CCN_CVR 0xff000040
-#define CCN_PRR 0xff000044
+#include <asm/cpu-features.h>
+#include <asm/fpu.h>
+#ifndef __ASSEMBLY__
/*
* CPU type and hardware bug flags. Kept separately for each CPU.
*
*/
enum cpu_type {
/* SH-2 types */
- CPU_SH7604,
+ CPU_SH7619,
+
+ /* SH-2A types */
+ CPU_SH7203, CPU_SH7206, CPU_SH7263,
/* SH-3 types */
- CPU_SH7705, 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_SH7712,
+ CPU_SH7720, CPU_SH7721, CPU_SH7729,
/* 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,
- CPU_SH73180, CPU_SH7770, CPU_SH7780, CPU_SH7781,
-
- /* Unknown subtype */
- CPU_SH_NONE
-};
-
-struct sh_cpuinfo {
- enum cpu_type type;
- unsigned long loops_per_jiffy;
-
- struct cache_info icache;
- struct cache_info dcache;
-
- unsigned long flags;
-};
-
-extern struct sh_cpuinfo boot_cpu_data;
-
-#ifdef CONFIG_SMP
-extern struct sh_cpuinfo cpu_data[];
-#define current_cpu_data cpu_data[smp_processor_id()]
-#else
-#define cpu_data (&boot_cpu_data)
-#define current_cpu_data boot_cpu_data
-#endif
-
-/*
- * User space process size: 2GB.
- *
- * Since SH7709 and SH7750 have "area 7", we can't use 0x7c000000--0x7fffffff
- */
-#define TASK_SIZE 0x7c000000UL
-
-/* This decides where the kernel will search for a free chunk of vm
- * space during mmap's.
- */
-#define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
-
-/*
- * Bit of SR register
- *
- * FD-bit:
- * When it's set, it means the processor doesn't have right to use FPU,
- * and it results exception when the floating operation is executed.
- *
- * IMASK-bit:
- * Interrupt level mask
- */
-#define SR_FD 0x00008000
-#define SR_DSP 0x00001000
-#define SR_IMASK 0x000000f0
-
-/*
- * FPU structure and data
- */
-
-struct sh_fpu_hard_struct {
- unsigned long fp_regs[16];
- unsigned long xfp_regs[16];
- unsigned long fpscr;
- unsigned long fpul;
-
- long status; /* software status information */
-};
-
-/* Dummy fpu emulator */
-struct sh_fpu_soft_struct {
- unsigned long fp_regs[16];
- unsigned long xfp_regs[16];
- unsigned long fpscr;
- unsigned long fpul;
+ CPU_SH7760, CPU_SH4_202, CPU_SH4_501,
- unsigned char lookahead;
- unsigned long entry_pc;
-};
-
-union sh_fpu_union {
- struct sh_fpu_hard_struct hard;
- 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 */
-#define CPU_HAS_PERF_COUNTER 0x0010 /* Hardware performance counters */
-#define CPU_HAS_PTEA 0x0020 /* PTEA register */
+ /* SH-4A types */
+ CPU_SH7763, CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785, CPU_SHX3,
-struct thread_struct {
- unsigned long sp;
- unsigned long pc;
+ /* SH4AL-DSP types */
+ CPU_SH7343, CPU_SH7722, CPU_SH7366,
- unsigned long trap_no, error_code;
- unsigned long address;
- /* Hardware debugging registers may come here */
- unsigned long ubc_pc;
+ /* SH-5 types */
+ CPU_SH5_101, CPU_SH5_103,
- /* floating point info */
- union sh_fpu_union fpu;
+ /* Unknown subtype */
+ CPU_SH_NONE
};
-/* 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 */ \
-}
+/* Forward decl */
+struct sh_cpuinfo;
-/*
- * Do necessary setup to start up a newly executed thread.
- */
-#define start_thread(regs, new_pc, new_sp) \
- set_fs(USER_DS); \
- regs->pr = 0; \
- regs->sr = SR_FD; /* User mode. */ \
- regs->pc = new_pc; \
- regs->regs[15] = new_sp
-
-/* Forward declaration, a strange C thing */
-struct task_struct;
-struct mm_struct;
-
-/* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
-
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk) do { } while (0)
+/* arch/sh/kernel/setup.c */
+const char *get_cpu_subtype(struct sh_cpuinfo *c);
-/*
- * create a kernel thread without removing it from tasklists
- */
-extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
-
-/* 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)
-
-/*
- * FPU lazy state save handling.
- */
-
-static __inline__ void disable_fpu(void)
-{
- unsigned long __dummy;
-
- /* Set FD flag in SR */
- __asm__ __volatile__("stc sr, %0\n\t"
- "or %1, %0\n\t"
- "ldc %0, sr"
- : "=&r" (__dummy)
- : "r" (SR_FD));
-}
-
-static __inline__ void enable_fpu(void)
-{
- unsigned long __dummy;
-
- /* Clear out FD flag in SR */
- __asm__ __volatile__("stc sr, %0\n\t"
- "and %1, %0\n\t"
- "ldc %0, sr"
- : "=&r" (__dummy)
- : "r" (~SR_FD));
-}
-
-static __inline__ void release_fpu(struct pt_regs *regs)
-{
- regs->sr |= SR_FD;
-}
-
-static __inline__ void grab_fpu(struct pt_regs *regs)
-{
- regs->sr &= ~SR_FD;
-}
-
-#ifdef CONFIG_CPU_SH4
-extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs);
+#ifdef CONFIG_VSYSCALL
+int vsyscall_init(void);
#else
-#define save_fpu(tsk) do { } while (0)
+#define vsyscall_init() do { } while (0)
#endif
-#define unlazy_fpu(tsk, regs) do { \
- if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \
- 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); \
- } \
-} while (0)
-
-/* Double presision, NANS as NANS, rounding to nearest, no exceptions */
-#define FPSCR_INIT 0x00080000
+#endif /* __ASSEMBLY__ */
-#define FPSCR_CAUSE_MASK 0x0001f000 /* Cause bits */
-#define FPSCR_FLAG_MASK 0x0000007c /* Flag bits */
-
-/*
- * Return saved PC of a blocked thread.
- */
-#define thread_saved_pc(tsk) (tsk->thread.pc)
-
-extern unsigned long get_wchan(struct task_struct *p);
-
-#define KSTK_EIP(tsk) ((tsk)->thread.pc)
-#define KSTK_ESP(tsk) ((tsk)->thread.sp)
-
-#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)
+#ifdef CONFIG_SUPERH32
+# include "processor_32.h"
+#else
+# include "processor_64.h"
#endif
-#endif /* __KERNEL__ */
#endif /* __ASM_SH_PROCESSOR_H */
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