a19e4685f7
tested true if the CPU was running in the kernel at the time of the clock interrupt, therefore all such time (kernel and idle) was counted as interrupt time. The new definition simply punts on trying to count interrupt time, which allows us to see kernel and idle time.
226 lines
6.8 KiB
C
226 lines
6.8 KiB
C
/* $NetBSD: cpu.h,v 1.29 2002/05/07 04:01:59 thorpej Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc. All rights reserved.
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)cpu.h 5.4 (Berkeley) 5/9/91
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*/
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/*
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* SH3/SH4 support.
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*
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* T.Horiuchi Brains Corp. 5/22/98
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*/
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#ifndef _SH3_CPU_H_
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#define _SH3_CPU_H_
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#if defined(_KERNEL_OPT)
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#include "opt_lockdebug.h"
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#endif
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#include <sys/sched.h>
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#include <sh3/psl.h>
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#include <sh3/frame.h>
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#ifdef _KERNEL
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struct cpu_info {
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struct schedstate_percpu ci_schedstate; /* scheduler state */
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#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
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u_long ci_spin_locks; /* # of spin locks held */
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u_long ci_simple_locks; /* # of simple locks held */
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#endif
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};
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extern struct cpu_info cpu_info_store;
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#define curcpu() (&cpu_info_store)
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/*
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* definitions of cpu-dependent requirements
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* referenced in generic code
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*/
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#define cpu_wait(p) /* nothing */
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#define cpu_number() 0
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/*
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* Can't swapout u-area, (__SWAP_BROKEN)
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* since we use P1 converted address for trapframe.
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*/
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#define cpu_swapin(p) /* nothing */
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#define cpu_swapout(p) panic("cpu_swapout: can't get here");
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/*
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* Arguments to hardclock and gatherstats encapsulate the previous
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* machine state in an opaque clockframe.
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*/
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struct clockframe {
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int spc; /* program counter at time of interrupt */
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int ssr; /* status register at time of interrupt */
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int ssp; /* stack pointer at time of interrupt */
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};
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#define CLKF_USERMODE(cf) (!KERNELMODE((cf)->ssr))
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#define CLKF_BASEPRI(cf) (((cf)->ssr & 0xf0) == 0)
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#define CLKF_PC(cf) ((cf)->spc)
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#define CLKF_INTR(cf) 0 /* XXX */
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/*
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* This is used during profiling to integrate system time. It can safely
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* assume that the process is resident.
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*/
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#define PROC_PC(p) \
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(((struct trapframe *)(p)->p_md.md_regs)->tf_spc)
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/*
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* Preempt the current process if in interrupt from user mode,
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* or after the current trap/syscall if in system mode.
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*/
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#define need_resched(ci) \
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do { \
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want_resched = 1; \
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if (curproc != NULL) \
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aston(curproc); \
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} while (/*CONSTCOND*/0)
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/*
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* Give a profiling tick to the current process when the user profiling
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* buffer pages are invalid. On the MIPS, request an ast to send us
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* through trap, marking the proc as needing a profiling tick.
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*/
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#define need_proftick(p) \
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do { \
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(p)->p_flag |= P_OWEUPC; \
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aston(p); \
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} while (/*CONSTCOND*/0)
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/*
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* Notify the current process (p) that it has a signal pending,
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* process as soon as possible.
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*/
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#define signotify(p) aston(p)
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#define aston(p) ((p)->p_md.md_astpending = 1)
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extern int want_resched; /* need_resched() was called */
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/*
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* We need a machine-independent name for this.
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*/
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#define DELAY(x) delay(x)
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#endif /* _KERNEL */
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/*
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* Logical address space of SH3/SH4 CPU.
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*/
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#define SH3_PHYS_MASK 0x1fffffff
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#define SH3_P0SEG_BASE 0x00000000 /* TLB mapped, also U0SEG */
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#define SH3_P0SEG_END 0x7fffffff
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#define SH3_P1SEG_BASE 0x80000000 /* pa == va */
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#define SH3_P1SEG_END 0x9fffffff
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#define SH3_P2SEG_BASE 0xa0000000 /* pa == va, non-cacheable */
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#define SH3_P2SEG_END 0xbfffffff
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#define SH3_P3SEG_BASE 0xc0000000 /* TLB mapped, kernel mode */
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#define SH3_P3SEG_END 0xdfffffff
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#define SH3_P4SEG_BASE 0xe0000000 /* peripheral space */
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#define SH3_P4SEG_END 0xffffffff
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#define SH3_P1SEG_TO_PHYS(x) ((u_int32_t)(x) & SH3_PHYS_MASK)
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#define SH3_P2SEG_TO_PHYS(x) ((u_int32_t)(x) & SH3_PHYS_MASK)
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#define SH3_PHYS_TO_P1SEG(x) ((u_int32_t)(x) | SH3_P1SEG_BASE)
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#define SH3_PHYS_TO_P2SEG(x) ((u_int32_t)(x) | SH3_P2SEG_BASE)
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#define SH3_P1SEG_TO_P2SEG(x) ((u_int32_t)(x) | 0x20000000)
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/* run on P2 */
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#define RUN_P2 \
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do { \
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u_int32_t p; \
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p = (u_int32_t)&&P2; \
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goto *(u_int32_t *)(p | 0x20000000); \
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P2: (void)0; \
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} while (/*CONSTCOND*/0)
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/* run on P1 */
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#define RUN_P1 \
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do { \
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u_int32_t p; \
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p = (u_int32_t)&&P1; \
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__asm__ __volatile__("nop;nop;nop;nop;nop;nop;nop;nop"); \
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goto *(u_int32_t *)(p & ~0x20000000); \
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P1: (void)0; \
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} while (/*CONSTCOND*/0)
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#if defined(SH4)
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/* SH4 Processor Version Register */
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#define SH4_PVR_ADDR 0xff000030 /* P4 address */
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#define SH4_PVR (*(volatile unsigned int *) SH4_PVR_ADDR)
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#define SH4_PVR_MASK 0xffffff00
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#define SH4_PVR_SH7750 0x04020500 /* SH7750 */
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#define SH4_PVR_SH7750S 0x04020600 /* SH7750S */
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#define SH4_PVR_SH7751 0x04110000 /* SH7751 */
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#endif
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/*
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* pull in #defines for kinds of processors
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*/
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#include <machine/cputypes.h>
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/*
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* CTL_MACHDEP definitions.
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*/
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#define CPU_CONSDEV 1 /* dev_t: console terminal device */
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#define CPU_LOADANDRESET 2 /* load kernel image and reset */
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#define CPU_MAXID 3 /* number of valid machdep ids */
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#define CTL_MACHDEP_NAMES { \
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{ 0, 0 }, \
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{ "console_device", CTLTYPE_STRUCT }, \
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{ "load_and_reset", CTLTYPE_INT }, \
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}
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#ifdef _KERNEL
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void sh_cpu_init(int, int);
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void sh_startup(void);
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void cpu_reset(void); /* Soft reset */
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void _cpu_spin(u_int32_t); /* for delay loop. */
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void delay(int);
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struct pcb;
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void savectx(struct pcb *);
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void dumpsys(void);
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#endif /* _KERNEL */
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#endif /* !_SH3_CPU_H_ */
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