diff options
Diffstat (limited to 'sys/arch/alpha/include/cpu.h')
| -rw-r--r-- | sys/arch/alpha/include/cpu.h | 54 |
1 files changed, 48 insertions, 6 deletions
diff --git a/sys/arch/alpha/include/cpu.h b/sys/arch/alpha/include/cpu.h index b599120df2e..4a4ff665401 100644 --- a/sys/arch/alpha/include/cpu.h +++ b/sys/arch/alpha/include/cpu.h @@ -1,4 +1,4 @@ -/* $OpenBSD: cpu.h,v 1.15 2001/11/06 18:41:09 art Exp $ */ +/* $OpenBSD: cpu.h,v 1.16 2002/04/28 20:55:14 pvalchev Exp $ */ /* $NetBSD: cpu.h,v 1.45 2000/08/21 02:03:12 thorpej Exp $ */ /*- @@ -83,6 +83,22 @@ #ifndef _ALPHA_CPU_H_ #define _ALPHA_CPU_H_ +#ifndef NO_IEEE +typedef union alpha_s_float { + u_int32_t i; + u_int32_t frac: 23, + exp: 8, + sign: 1; +} s_float; + +typedef union alpha_t_float { + u_int64_t i; + u_int64_t frac: 52, + exp: 11, + sign: 1; +} t_float; +#endif + /* * Exported definitions unique to Alpha cpu support. */ @@ -100,7 +116,11 @@ struct reg; struct rpb; struct trapframe; +extern u_long cpu_implver; /* from IMPLVER instruction */ +extern u_long cpu_amask; /* from AMASK instruction */ extern int bootdev_debug; +extern int alpha_fp_sync_complete; +extern int alpha_unaligned_print, alpha_unaligned_fix, alpha_unaligned_sigbus; void XentArith(u_int64_t, u_int64_t, u_int64_t); /* MAGIC */ void XentIF(u_int64_t, u_int64_t, u_int64_t); /* MAGIC */ @@ -195,6 +215,11 @@ struct cpu_info { #define CPUF_PRIMARY 0x01 /* CPU is primary CPU */ #define CPUF_PRESENT 0x02 /* CPU is present */ #define CPUF_RUNNING 0x04 /* CPU is running */ +#define CPUF_PAUSED 0x08 /* CPU is paused */ +#define CPUF_FPUSAVE 0x10 /* CPU is currently in fpusave_cpu() */ + +void fpusave_cpu(struct cpu_info *, int); +void fpusave_proc(struct proc *, int); #if defined(MULTIPROCESSOR) extern __volatile u_long cpus_running; @@ -218,9 +243,6 @@ extern struct cpu_info cpu_info_store; #define fpcurproc curcpu()->ci_fpcurproc #define curpcb curcpu()->ci_curpcb -extern u_long cpu_implver; /* from IMPLVER instruction */ -extern u_long cpu_amask; /* from AMASK instruction */ - /* * definitions of cpu-dependent requirements * referenced in generic code @@ -309,8 +331,9 @@ do { \ #define CPU_UNALIGNED_FIX 4 /* int: fix unaligned accesses */ #define CPU_UNALIGNED_SIGBUS 5 /* int: SIGBUS unaligned accesses */ #define CPU_BOOTED_KERNEL 6 /* string: booted kernel name */ -#define CPU_CHIPSET 7 /* chipset information */ -#define CPU_MAXID 8 /* 6 valid machdep IDs */ +#define CPU_FP_SYNC_COMPLETE 7 /* int: always fixup sync fp traps */ +#define CPU_MAXID 8 /* 7 valid machdep IDs */ +#define CPU_CHIPSET 9 /* chipset information */ #define CPU_CHIPSET_MEM 1 /* PCI memory address */ #define CPU_CHIPSET_BWX 2 /* PCI supports BWX */ @@ -328,6 +351,7 @@ do { \ { "unaligned_sigbus", CTLTYPE_INT }, \ { "booted_kernel", CTLTYPE_STRING }, \ { "chipset", CTLTYPE_NODE }, \ + { "fp_sync_complete", CTLTYPE_INT }, \ } #ifdef _KERNEL @@ -338,5 +362,23 @@ struct reg; struct rpb; struct trapframe; +/* IEEE and VAX FP completion */ + +#ifndef NO_IEEE +void alpha_sts(int, s_float *); /* MAGIC */ +void alpha_stt(int, t_float *); /* MAGIC */ +void alpha_lds(int, s_float *); /* MAGIC */ +void alpha_ldt(int, t_float *); /* MAGIC */ + +uint64_t alpha_read_fpcr(void); /* MAGIC */ +void alpha_write_fpcr(u_int64_t); /* MAGIC */ + +u_int64_t alpha_read_fp_c(struct proc *); +void alpha_write_fp_c(struct proc *, u_int64_t); + +void alpha_enable_fp(struct proc *, int); +int alpha_fp_complete(u_long, u_long, struct proc *, u_int64_t *); +#endif + #endif /* _KERNEL */ #endif /* _ALPHA_CPU_H_ */ |