scoutos / prex-0.9.0 / sys / include / hal.h @ 03e9c04a
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/*
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* Copyright (c) 2005-2009, Kohsuke Ohtani
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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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* 3. Neither the name of the author nor the names of any co-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 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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#ifndef _PREX_HAL_H
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#define _PREX_HAL_H
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#include <types.h> |
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#include <sys/bootinfo.h> |
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#include <context.h> |
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#include <mmu.h> |
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#define NO_PGD ((pgd_t)0) /* non-existent pgd */ |
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/*
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* Types for context_set()
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*/
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#define CTX_KSTACK 0 /* set kernel mode stack address */ |
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#define CTX_KENTRY 1 /* set kernel mode entry address */ |
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#define CTX_KARG 2 /* set kernel mode argument */ |
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#define CTX_USTACK 3 /* set user mode stack address */ |
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#define CTX_UENTRY 4 /* set user mode entry addres */ |
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#define CTX_UARG 5 /* set user mode argument */ |
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/*
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* page types for mmu_map()
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*/
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#define PG_UNMAP 0 /* no page */ |
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#define PG_READ 1 /* user - read only */ |
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#define PG_WRITE 2 /* user - read/write */ |
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#define PG_SYSTEM 3 /* system */ |
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#define PG_IOMEM 4 /* system - no cache */ |
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/*
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* Virtual/physical address mapping
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*/
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struct mmumap
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{ |
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vaddr_t virt; /* virtual address */
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paddr_t phys; /* physical address */
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psize_t size; /* size */
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int type; /* mapping type */ |
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}; |
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#define AUTOSIZE 0 |
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/*
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* type of virtual memory mappings
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*/
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#define VMT_NULL 0 |
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#define VMT_RAM 1 |
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#define VMT_ROM 2 |
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#define VMT_DMA 3 |
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#define VMT_IO 4 |
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/*
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* Return value of ISR
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*/
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#define INT_DONE 0 /* done */ |
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#define INT_ERROR 1 /* error */ |
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#define INT_CONTINUE 2 /* continue to IST */ |
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/* No IST for irq_attach() */
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#define IST_NONE ((void (*)(void *)) -1) |
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/*
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* Interrupt mode for interrupt_setup()
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*/
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#define IMODE_EDGE 0 /* edge trigger */ |
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#define IMODE_LEVEL 1 /* level trigger */ |
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__BEGIN_DECLS |
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void context_set(context_t, int, register_t); |
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void context_switch(context_t, context_t);
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void context_save(context_t);
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void context_restore(context_t);
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void context_dump(context_t);
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void mmu_init(struct mmumap *); |
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void mmu_premap(paddr_t, vaddr_t);
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pgd_t mmu_newmap(void);
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void mmu_terminate(pgd_t);
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int mmu_map(pgd_t, paddr_t, vaddr_t, size_t, int); |
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void mmu_switch(pgd_t);
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paddr_t mmu_extract(pgd_t, vaddr_t, size_t); |
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int copyin(const void *, void *, size_t); |
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int copyout(const void *, void *, size_t); |
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int copyinstr(const void *, void *, size_t); |
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int splhigh(void); |
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int spl0(void); |
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void splx(int); |
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void syscall_ret(void); |
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void interrupt_mask(int); |
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void interrupt_unmask(int, int); |
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void interrupt_setup(int, int); |
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void interrupt_init(void); |
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void machine_startup(void); |
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void machine_idle(void); |
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void machine_powerdown(int); |
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void machine_abort(void); |
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void machine_bootinfo(struct bootinfo **); |
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void clock_init(void); |
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#ifdef DEBUG
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void diag_init(void); |
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void diag_puts(char *); |
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#else
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#define diag_init() ((void)0) |
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#endif
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__END_DECLS |
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#endif /* !_PREX_HAL_H */ |