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NetBSD/sys/arch/powerpc/include/cpu.h

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/* $NetBSD: cpu.h,v 1.65 2008/04/30 23:21:29 macallan Exp $ */
/*
* Copyright (C) 1999 Wolfgang Solfrank.
* Copyright (C) 1999 TooLs GmbH.
* Copyright (C) 1995-1997 Wolfgang Solfrank.
* Copyright (C) 1995-1997 TooLs GmbH.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _POWERPC_CPU_H_
#define _POWERPC_CPU_H_
struct cache_info {
int dcache_size;
int dcache_line_size;
int icache_size;
int icache_line_size;
};
#ifdef _KERNEL
#if defined(_KERNEL_OPT)
#include "opt_lockdebug.h"
#include "opt_multiprocessor.h"
#include "opt_ppcarch.h"
#endif
#include <machine/frame.h>
#include <machine/psl.h>
#include <machine/intr.h>
#include <sys/device.h>
#include <sys/cpu_data.h>
struct cpu_info {
struct cpu_data ci_data; /* MI per-cpu data */
struct device *ci_dev; /* device of corresponding cpu */
struct lwp *ci_curlwp; /* current owner of the processor */
struct pcb *ci_curpcb;
struct pmap *ci_curpm;
struct lwp *ci_fpulwp;
struct lwp *ci_veclwp;
int ci_cpuid;
volatile int ci_astpending;
int ci_want_resched;
volatile u_long ci_lasttb;
volatile int ci_tickspending;
volatile int ci_cpl;
volatile int ci_iactive;
volatile int ci_idepth;
volatile int ci_ipending;
int ci_intrdepth;
int ci_mtx_oldspl;
int ci_mtx_count;
char *ci_intstk;
#define CPUSAVE_LEN 8
register_t ci_tempsave[CPUSAVE_LEN];
register_t ci_ddbsave[CPUSAVE_LEN];
register_t ci_ipkdbsave[CPUSAVE_LEN];
#define CPUSAVE_R28 0 /* where r28 gets saved */
#define CPUSAVE_R29 1 /* where r29 gets saved */
#define CPUSAVE_R30 2 /* where r30 gets saved */
#define CPUSAVE_R31 3 /* where r31 gets saved */
#define CPUSAVE_DAR 4 /* where SPR_DAR gets saved */
#define CPUSAVE_DSISR 5 /* where SPR_DSISR gets saved */
#define CPUSAVE_SRR0 6 /* where SRR0 gets saved */
#define CPUSAVE_SRR1 7 /* where SRR1 gets saved */
#define DISISAVE_LEN 4
register_t ci_disisave[DISISAVE_LEN];
struct cache_info ci_ci;
void *ci_sysmon_cookie;
void (*ci_idlespin)(void);
uint32_t ci_khz;
struct evcnt ci_ev_clock; /* clock intrs */
struct evcnt ci_ev_statclock; /* stat clock */
struct evcnt ci_ev_softclock; /* softclock intrs */
struct evcnt ci_ev_softnet; /* softnet intrs */
struct evcnt ci_ev_softserial; /* softserial intrs */
struct evcnt ci_ev_traps; /* calls to trap() */
struct evcnt ci_ev_kdsi; /* kernel DSI traps */
struct evcnt ci_ev_udsi; /* user DSI traps */
struct evcnt ci_ev_udsi_fatal; /* user DSI trap failures */
struct evcnt ci_ev_kisi; /* kernel ISI traps */
struct evcnt ci_ev_isi; /* user ISI traps */
struct evcnt ci_ev_isi_fatal; /* user ISI trap failures */
struct evcnt ci_ev_pgm; /* user PGM traps */
struct evcnt ci_ev_fpu; /* FPU traps */
struct evcnt ci_ev_fpusw; /* FPU context switch */
struct evcnt ci_ev_ali; /* Alignment traps */
struct evcnt ci_ev_ali_fatal; /* Alignment fatal trap */
struct evcnt ci_ev_scalls; /* system call traps */
struct evcnt ci_ev_vec; /* Altivec traps */
struct evcnt ci_ev_vecsw; /* Altivec context switches */
struct evcnt ci_ev_umchk; /* user MCHK events */
struct evcnt ci_ev_ipi; /* IPIs received */
};
#ifdef MULTIPROCESSOR
struct cpu_hatch_data {
struct device *self;
struct cpu_info *ci;
int running;
int pir;
int asr;
int hid0;
int sdr1;
int sr[16];
int batu[4], batl[4];
int tbu, tbl;
};
static __inline int
cpu_number(void)
{
int pir;
__asm ("mfspr %0,1023" : "=r"(pir));
return pir;
}
void cpu_boot_secondary_processors(void);
#define CPU_IS_PRIMARY(ci) ((ci)->ci_cpuid == 0)
#define CPU_INFO_ITERATOR int
#define CPU_INFO_FOREACH(cii, ci) \
cii = 0, ci = &cpu_info[0]; cii < ncpu; cii++, ci++
#else
#define cpu_number() 0
#define CPU_INFO_ITERATOR int
#define CPU_INFO_FOREACH(cii, ci) \
cii = 0, ci = curcpu(); ci != NULL; ci = NULL
#endif /* MULTIPROCESSOR */
extern struct cpu_info cpu_info[];
static __inline struct cpu_info *
curcpu(void)
{
struct cpu_info *ci;
__asm volatile ("mfsprg %0,0" : "=r"(ci));
return ci;
}
#define curlwp (curcpu()->ci_curlwp)
#define curpcb (curcpu()->ci_curpcb)
#define curpm (curcpu()->ci_curpm)
static __inline register_t
mfmsr(void)
{
register_t msr;
__asm volatile ("mfmsr %0" : "=r"(msr));
return msr;
}
static __inline void
mtmsr(register_t msr)
{
__asm volatile ("mtmsr %0" : : "r"(msr));
}
static __inline uint32_t
mftbl(void)
{
uint32_t tbl;
__asm volatile (
#ifdef PPC_IBM403
" mftblo %0 \n"
#else
" mftbl %0 \n"
#endif
: "=r" (tbl));
return tbl;
}
static __inline uint64_t
mftb(void)
{
uint64_t tb;
#ifdef _LP64
__asm volatile ("mftb %0" : "=r"(tb));
#else
int tmp;
__asm volatile (
#ifdef PPC_IBM403
"1: mftbhi %0 \n"
" mftblo %0+1 \n"
" mftbhi %1 \n"
#else
"1: mftbu %0 \n"
" mftb %0+1 \n"
" mftbu %1 \n"
#endif
" cmplw %0,%1 \n"
" bne- 1b \n"
: "=r" (tb), "=r"(tmp) :: "cr0");
#endif
return tb;
}
static __inline uint32_t
mfrtcl(void)
{
uint32_t rtcl;
__asm volatile ("mfrtcl %0" : "=r"(rtcl));
return rtcl;
}
static __inline void
mfrtc(uint32_t *rtcp)
{
uint32_t tmp;
__asm volatile (
"1: mfrtcu %0 \n"
" mfrtcl %1 \n"
" mfrtcu %2 \n"
" cmplw %0,%2 \n"
" bne- 1b"
: "=r"(*rtcp), "=r"(*(rtcp + 1)), "=r"(tmp) :: "cr0");
}
static __inline uint32_t
mfpvr(void)
{
uint32_t pvr;
__asm volatile ("mfpvr %0" : "=r"(pvr));
return (pvr);
}
static __inline int
cntlzw(uint32_t val)
{
int cnt;
__asm volatile ("cntlzw %0,%1" : "=r"(cnt) : "r"(val));
return (cnt);
}
#if defined(PPC_IBM4XX) || defined(PPC_IBM403)
/*
* DCR (Device Control Register) access. These have to be
* macros because register address is encoded as immediate
* operand.
*/
#define mtdcr(reg, val) \
__asm volatile("mtdcr %0,%1" : : "K"(reg), "r"(val))
#define mfdcr(reg) \
({ \
uint32_t __val; \
\
__asm volatile("mfdcr %0,%1" : "=r"(__val) : "K"(reg)); \
__val; \
})
#endif /* PPC_IBM4XX || PPC_IBM403 */
#define CLKF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0)
#define CLKF_PC(frame) ((frame)->srr0)
#define CLKF_INTR(frame) ((frame)->depth > 0)
#define LWP_PC(l) (trapframe(l)->srr0)
#define cpu_swapin(p)
#define cpu_swapout(p)
#define cpu_proc_fork(p1, p2)
#define cpu_idle() (curcpu()->ci_idlespin())
#define cpu_lwp_free2(l)
extern int powersave;
extern int cpu_timebase;
extern int cpu_printfataltraps;
extern char cpu_model[];
struct cpu_info *cpu_attach_common(struct device *, int);
void cpu_setup(struct device *, struct cpu_info *);
void cpu_identify(char *, size_t);
void delay (unsigned int);
void cpu_probe_cache(void);
void dcache_flush_page(vaddr_t);
void icache_flush_page(vaddr_t);
void dcache_flush(vaddr_t, vsize_t);
void icache_flush(vaddr_t, vsize_t);
void *mapiodev(paddr_t, psize_t);
void unmapiodev(vaddr_t, vsize_t);
#ifdef MULTIPROCESSOR
int md_setup_trampoline(volatile struct cpu_hatch_data *, struct cpu_info *);
void md_presync_timebase(volatile struct cpu_hatch_data *);
void md_start_timebase(volatile struct cpu_hatch_data *);
void md_sync_timebase(volatile struct cpu_hatch_data *);
void md_setup_interrupts(void);
int cpu_spinup(struct device *, struct cpu_info *);
register_t cpu_hatch(void);
void cpu_spinup_trampoline(void);
#endif
#define DELAY(n) delay(n)
#define cpu_need_resched(ci, v) (ci->ci_want_resched = ci->ci_astpending = 1)
#define cpu_did_resched(l) ((void)(curcpu()->ci_want_resched = 0))
#define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, curcpu()->ci_astpending = 1)
#define cpu_signotify(l) (curcpu()->ci_astpending = 1) /* XXXSMP */
#if !defined(PPC_IBM4XX)
void oea_init(void (*)(void));
void oea_startup(const char *);
void oea_dumpsys(void);
void oea_install_extint(void (*)(void));
paddr_t kvtop(void *);
void softnet(int);
extern paddr_t msgbuf_paddr;
extern int cpu_altivec;
#endif
#endif /* _KERNEL */
/* XXX The below breaks unified pmap on ppc32 */
#if defined(_KERNEL) || defined(_STANDALONE)
#if !defined(CACHELINESIZE)
#ifdef PPC_IBM403
#define CACHELINESIZE 16
#define MAXCACHELINESIZE 16
#else
#if defined (PPC_OEA64_BRIDGE)
#define CACHELINESIZE 128
#define MAXCACHELINESIZE 128
#else
#define CACHELINESIZE 32
#define MAXCACHELINESIZE 32
#endif /* PPC_OEA64_BRIDGE */
#endif
#endif
#endif
void __syncicache(void *, size_t);
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CACHELINE 1
#define CPU_TIMEBASE 2
#define CPU_CPUTEMP 3
#define CPU_PRINTFATALTRAPS 4
#define CPU_CACHEINFO 5
#define CPU_ALTIVEC 6
#define CPU_MODEL 7
#define CPU_POWERSAVE 8 /* int: use CPU powersave mode */
#define CPU_BOOTED_DEVICE 9 /* string: device we booted from */
#define CPU_BOOTED_KERNEL 10 /* string: kernel we booted */
#define CPU_MAXID 11 /* number of valid machdep ids */
#endif /* _POWERPC_CPU_H_ */
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