abef0e6700
the 16-bit cylinders field of the VTOC8 disk label (at around 502GB). The geometry chosen for disks above that limit allows to use disks up to 2TB, which is the limit of the extended VTOC8 format. The geometry used for disks smaller than the 16-bit cylinders limit stays the same as used by cam_calc_geometry(9) for extended translation. Thanks to Hans-Joerg Sirtl for providing hardware for testing this change. MFC after: 3 days
79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
/*-
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* Copyright (c) 1995 Bruce D. Evans.
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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 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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* from: FreeBSD: src/sys/i386/include/md_var.h,v 1.40 2001/07/12
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* $FreeBSD$
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*/
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#ifndef _MACHINE_MD_VAR_H_
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#define _MACHINE_MD_VAR_H_
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typedef void cpu_block_copy_t(const void *src, void *dst, size_t len);
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typedef void cpu_block_zero_t(void *dst, size_t len);
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extern char tl0_base[];
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extern char _end[];
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extern long Maxmem;
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extern vm_offset_t kstack0;
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extern vm_paddr_t kstack0_phys;
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struct pcpu;
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struct md_utrap;
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const char *cpu_cpuid_prop(u_int cpu_impl);
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uint32_t cpu_get_mid(u_int cpu_impl);
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void cpu_identify(u_long vers, u_int clock, u_int id);
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void cpu_setregs(struct pcpu *pc);
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int is_physical_memory(vm_paddr_t addr);
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struct md_utrap *utrap_alloc(void);
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void utrap_free(struct md_utrap *ut);
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struct md_utrap *utrap_hold(struct md_utrap *ut);
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cpu_block_copy_t spitfire_block_copy;
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cpu_block_zero_t spitfire_block_zero;
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cpu_block_copy_t zeus_block_copy;
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cpu_block_zero_t zeus_block_zero;
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extern cpu_block_copy_t *cpu_block_copy;
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extern cpu_block_zero_t *cpu_block_zero;
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/*
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* Given that the VTOC8 disk label only uses 16-bit fields for cylinders,
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* heads and sectors we might need to adjust the geometry of large disks.
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*/
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struct ccb_calc_geometry;
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int scsi_da_bios_params(struct ccb_calc_geometry *ccg);
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struct disk;
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void sparc64_ata_disk_firmware_geom_adjust(struct disk *disk);
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#define ata_disk_firmware_geom_adjust(disk) \
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sparc64_ata_disk_firmware_geom_adjust(disk)
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#endif /* !_MACHINE_MD_VAR_H_ */
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