36ee9f5c62
- add 040 cpu and mmu stuff - use leftover from the page root table to put interrupt vector table to set VBR to git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26627 a95241bf-73f2-0310-859d-f6bbb57e9c96
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/*
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** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
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** Distributed under the terms of the OpenBeOS License.
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*/
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#ifndef KERNEL_ARCH_M68K_KERNEL_ARGS_H
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#define KERNEL_ARCH_M68K_KERNEL_ARGS_H
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#ifndef KERNEL_BOOT_KERNEL_ARGS_H
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# error This file is included from <boot/kernel_args.h> only
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#endif
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#define _PACKED __attribute__((packed))
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//#define MAX_VIRTUAL_RANGES_TO_KEEP 32
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// kernel args
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typedef struct {
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int cpu_type; // decimal: 68030, ...
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int fpu_type; // decimal: 68030, ...
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int mmu_type; // decimal: 68030, ...
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int platform; // M68K_PLATFORM_*
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int machine; // platform specific machine type
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bool has_lpstop; //XXX: use bit flags
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// architecture specific
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uint64 cpu_frequency;
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uint64 bus_frequency;
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uint64 time_base_frequency;
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// page root table
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uint32 phys_pgroot;
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uint32 vir_pgroot;
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// interrupt vector table (VBR)
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uint32 phys_vbr;
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uint32 vir_vbr;
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//XXX:
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addr_range page_table; // virtual address and size of the page table
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addr_range exception_handlers;
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addr_range framebuffer; // maps where the framebuffer is located, in physical memory
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int screen_x, screen_y, screen_depth;
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// The virtual ranges we want to keep in the kernel. E.g. those belonging
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// to the Open Firmware.
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// uint32 num_virtual_ranges_to_keep;
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// addr_range virtual_ranges_to_keep[MAX_VIRTUAL_RANGES_TO_KEEP];
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// platform specific
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union {
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struct {
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struct {
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//XXX: are those meant to be used by physical
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// or virtual address ?
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uint32 (*nf_get_id)(const char *);
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int32 (*nf_call)(uint32, ...);
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addr_t nf_page;
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uint32 nf_dprintf_id;
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} nat_feat;
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} atari;
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} plat_args;
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} arch_kernel_args;
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#endif /* KERNEL_ARCH_M68K_KERNEL_ARGS_H */
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