a5f50ef9e4
place. This moves the dependency on GCC's and other compiler's features into the central sys/cdefs.h file, while the individual source files can then refer to #ifdef __COMPILER_FEATURE_FOO where they by now used to refer to #if __GNUC__ > 3.1415 && __BARC__ <= 42. By now, GCC and ICC (the Intel compiler) have been actively tested on IA32 platforms by netchild. Extension to other compilers is supposed to be possible, of course. Submitted by: netchild Reviewed by: various developers on arch@, some time ago
218 lines
4.3 KiB
C
218 lines
4.3 KiB
C
/*-
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* Copyright (c) 1998 Doug Rabson
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $FreeBSD$
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*/
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#ifndef _MACHINE_CPUFUNC_H_
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#define _MACHINE_CPUFUNC_H_
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#ifdef _KERNEL
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#include <sys/types.h>
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#include <machine/ia64_cpu.h>
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#include <machine/vmparam.h>
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#ifndef _SYS_CDEFS_H_
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#error this file needs sys/cdefs.h as a prerequisite
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#endif
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struct thread;
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#define IA64_FIXED_BREAK 0x84B5D
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#ifdef __GNUCLIKE_ASM
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static __inline void
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breakpoint(void)
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{
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__asm __volatile("break.m %0" :: "i"(IA64_FIXED_BREAK));
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}
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#define HAVE_INLINE_FFS
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#define ffs(x) __builtin_ffs(x)
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extern uint64_t ia64_port_base;
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#define __MEMIO_ADDR(x) (__volatile void*)(IA64_PHYS_TO_RR6(x))
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#define __PIO_ADDR(x) (__volatile void*)(ia64_port_base | \
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(((x) & 0xFFFC) << 10) | ((x) & 0xFFF))
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/*
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* I/O port reads with ia32 semantics.
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*/
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static __inline uint8_t
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inb(unsigned int port)
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{
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__volatile uint8_t *p;
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uint8_t v;
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p = __PIO_ADDR(port);
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ia64_mf();
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v = *p;
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ia64_mf_a();
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ia64_mf();
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return (v);
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}
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static __inline uint16_t
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inw(unsigned int port)
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{
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__volatile uint16_t *p;
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uint16_t v;
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p = __PIO_ADDR(port);
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ia64_mf();
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v = *p;
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ia64_mf_a();
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ia64_mf();
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return (v);
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}
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static __inline uint32_t
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inl(unsigned int port)
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{
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volatile uint32_t *p;
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uint32_t v;
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p = __PIO_ADDR(port);
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ia64_mf();
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v = *p;
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ia64_mf_a();
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ia64_mf();
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return (v);
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}
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static __inline void
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insb(unsigned int port, void *addr, size_t count)
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{
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uint8_t *buf = addr;
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while (count--)
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*buf++ = inb(port);
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}
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static __inline void
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insw(unsigned int port, void *addr, size_t count)
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{
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uint16_t *buf = addr;
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while (count--)
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*buf++ = inw(port);
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}
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static __inline void
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insl(unsigned int port, void *addr, size_t count)
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{
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uint32_t *buf = addr;
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while (count--)
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*buf++ = inl(port);
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}
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static __inline void
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outb(unsigned int port, uint8_t data)
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{
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volatile uint8_t *p;
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p = __PIO_ADDR(port);
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ia64_mf();
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*p = data;
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ia64_mf_a();
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ia64_mf();
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}
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static __inline void
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outw(unsigned int port, uint16_t data)
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{
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volatile uint16_t *p;
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p = __PIO_ADDR(port);
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ia64_mf();
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*p = data;
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ia64_mf_a();
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ia64_mf();
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}
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static __inline void
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outl(unsigned int port, uint32_t data)
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{
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volatile uint32_t *p;
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p = __PIO_ADDR(port);
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ia64_mf();
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*p = data;
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ia64_mf_a();
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ia64_mf();
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}
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static __inline void
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outsb(unsigned int port, const void *addr, size_t count)
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{
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const uint8_t *buf = addr;
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while (count--)
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outb(port, *buf++);
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}
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static __inline void
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outsw(unsigned int port, const void *addr, size_t count)
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{
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const uint16_t *buf = addr;
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while (count--)
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outw(port, *buf++);
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}
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static __inline void
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outsl(unsigned int port, const void *addr, size_t count)
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{
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const uint32_t *buf = addr;
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while (count--)
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outl(port, *buf++);
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}
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static __inline void
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disable_intr(void)
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{
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__asm __volatile ("rsm psr.i");
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}
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static __inline void
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enable_intr(void)
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{
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__asm __volatile ("ssm psr.i;; srlz.d");
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}
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static __inline register_t
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intr_disable(void)
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{
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register_t psr;
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__asm __volatile ("mov %0=psr;;" : "=r"(psr));
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disable_intr();
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return ((psr & IA64_PSR_I) ? 1 : 0);
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}
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static __inline void
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intr_restore(register_t ie)
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{
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if (ie)
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enable_intr();
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}
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#endif /* __GNUCLIKE_ASM */
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#endif /* _KERNEL */
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#endif /* !_MACHINE_CPUFUNC_H_ */
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