b34a97ebe9
type of software interrupt. Roughly, what used to be a bit in spending now maps to a swi thread. Each thread can have multiple handlers, just like a hardware interrupt thread. - Instead of using a bitmask of pending interrupts, we schedule the specific software interrupt thread to run, so spending, NSWI, and the shandlers array are no longer needed. We can now have an arbitrary number of software interrupt threads. When you register a software interrupt thread via sinthand_add(), you get back a struct intrhand that you pass to sched_swi() when you wish to schedule your swi thread to run. - Convert the name of 'struct intrec' to 'struct intrhand' as it is a bit more intuitive. Also, prefix all the members of struct intrhand with 'ih_'. - Make swi_net() a MI function since there is now no point in it being MD. Submitted by: cp
79 lines
2.9 KiB
C
79 lines
2.9 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_MD_VAR_H_
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#define _MACHINE_MD_VAR_H_
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/*
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* Miscellaneous machine-dependent declarations.
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*/
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extern char sigcode[];
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extern char esigcode[];
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extern int szsigcode;
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extern int Maxmem;
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extern int busdma_swi_pending;
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extern void (*netisrs[32]) __P((void));
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struct fpreg;
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struct proc;
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struct reg;
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struct cam_sim;
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struct pcicfg;
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void busdma_swi __P((void));
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void cpu_halt __P((void));
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void cpu_reset __P((void));
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int is_physical_memory __P((vm_offset_t addr));
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void swi_vm __P((void *));
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int vm_page_zero_idle __P((void));
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int fill_regs __P((struct proc *, struct reg *));
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int set_regs __P((struct proc *, struct reg *));
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int fill_fpregs __P((struct proc *, struct fpreg *));
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int set_fpregs __P((struct proc *, struct fpreg *));
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void alpha_register_pci_scsi __P((int bus, int slot, struct cam_sim *sim));
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#ifdef _SYS_BUS_H_
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struct resource *alpha_platform_alloc_ide_intr(int chan);
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int alpha_platform_release_ide_intr(int chan, struct resource *res);
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int alpha_platform_setup_ide_intr(struct device *dev,
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struct resource *res,
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driver_intr_t *fn, void *arg,
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void **cookiep);
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int alpha_platform_teardown_ide_intr(struct device *dev,
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struct resource *res, void *cookie);
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int alpha_platform_pci_setup_intr(device_t dev, device_t child,
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struct resource *irq, int flags,
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driver_intr_t *intr, void *arg,
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void **cookiep);
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int alpha_platform_pci_teardown_intr(device_t dev, device_t child,
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struct resource *irq, void *cookie);
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#endif
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void alpha_platform_assign_pciintr(struct pcicfg *cfg);
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#endif /* !_MACHINE_MD_VAR_H_ */
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