0fb6b9a8f8
Rather than an "iointr" routine that decomposes a vector into an IRQ, we maintain a vector table directly, hooking up each "iointr" routine at the correct vector. This also allows us to hook device interrupts up to specific vectors (c.f. Jensen). We can shave even more cycles off, here, and I will, but it requires some changes to the alpha_shared_intr stuff.
114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/* $NetBSD: ttwogavar.h,v 1.2 2001/07/27 00:25:21 thorpej Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <dev/isa/isavar.h>
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#include <dev/pci/pcivar.h>
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#include <alpha/pci/pci_sgmap_pte64.h>
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#define _FSTORE (EXTENT_FIXED_STORAGE_SIZE(8) / sizeof(long))
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/*
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* T2 System Address Map info.
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*/
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struct ttwoga_sysmap {
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bus_addr_t tsmap_sio_base;
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bus_size_t tsmap_sio_syssize;
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bus_size_t tsmap_sio_bussize;
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bus_addr_t tsmap_smem_base;
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bus_size_t tsmap_smem_syssize;
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bus_size_t tsmap_smem_bussize;
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bus_addr_t tsmap_dmem_base;
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bus_size_t tsmap_dmem_syssize;
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bus_size_t tsmap_dmem_bussize;
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bus_addr_t tsmap_conf_base;
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};
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/*
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* A T2 Gate Array's configuration.
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*
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* All of the information that the T2-specific functions need to
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* do their dirty work (and more!).
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*/
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struct ttwoga_config {
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int tc_initted;
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int tc_rev;
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int tc_hose;
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bus_addr_t tc_io_bus_start, tc_d_mem_bus_start, tc_s_mem_bus_start;
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const struct ttwoga_sysmap *tc_sysmap;
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struct alpha_bus_space tc_iot, tc_memt;
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struct alpha_pci_chipset tc_pc;
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struct alpha_bus_dma_tag tc_dmat_direct;
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struct alpha_bus_dma_tag tc_dmat_sgmap;
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struct alpha_sgmap tc_sgmap;
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int tc_use_tlb; /* Gamma hardware bug */
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long tc_io_exstorage[_FSTORE];
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long tc_smem_exstorage[_FSTORE];
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long tc_dmem_exstorage[_FSTORE];
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struct extent *tc_io_ex, *tc_d_mem_ex, *tc_s_mem_ex;
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int tc_mallocsafe;
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u_long tc_vecbase;
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struct alpha_shared_intr *tc_intrtab;
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void (*tc_enable_intr)(struct ttwoga_config *, int, int);
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void (*tc_setlevel)(struct ttwoga_config *, int, int);
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void (*tc_eoi)(struct ttwoga_config *, int);
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};
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extern cpuid_t ttwoga_conf_cpu;
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extern struct ttwoga_config ttwoga_configuration[];
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struct ttwoga_config *ttwoga_init(int, int);
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void ttwoga_pci_init(pci_chipset_tag_t, void *);
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void ttwoga_dma_init(struct ttwoga_config *);
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void ttwoga_bus_io_init(bus_space_tag_t, void *);
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void ttwoga_bus_mem_init(bus_space_tag_t, void *);
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