/* $NetBSD: ttwogavar.h,v 1.8 2023/12/04 00:32:10 thorpej Exp $ */

/* $NetBSD: ttwogavar.h,v 1.8 2023/12/04 00:32:10 thorpej Exp $ */

/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/extent.h>
#include <sys/vmem_impl.h>

#include <dev/isa/isavar.h>
#include <dev/pci/pcivar.h>
#include <alpha/pci/pci_sgmap_pte64.h>

#define TTWOGA_NBTS VMEM_EST_BTCOUNT(1, 8)

/*
* T2 System Address Map info.
*/
struct ttwoga_sysmap {
bus_addr_t tsmap_sio_base;
bus_size_t tsmap_sio_syssize;
bus_size_t tsmap_sio_bussize;

bus_addr_t tsmap_smem_base;
bus_size_t tsmap_smem_syssize;
bus_size_t tsmap_smem_bussize;

bus_addr_t tsmap_dmem_base;
bus_size_t tsmap_dmem_syssize;
bus_size_t tsmap_dmem_bussize;

bus_addr_t tsmap_conf_base;
};

/*
* A T2 Gate Array's configuration.
*
* All of the information that the T2-specific functions need to
* do their dirty work (and more!).
*/
struct ttwoga_config {
int tc_initted;

int tc_rev;

int tc_hose;

bus_addr_t tc_io_bus_start, tc_d_mem_bus_start, tc_s_mem_bus_start;

const struct ttwoga_sysmap *tc_sysmap;

struct alpha_bus_space tc_iot, tc_memt;
struct alpha_pci_chipset tc_pc;

struct alpha_bus_dma_tag tc_dmat_direct;
struct alpha_bus_dma_tag tc_dmat_sgmap;

struct alpha_sgmap tc_sgmap;
int tc_use_tlb; /* Gamma hardware bug */

struct vmem tc_io_arena_store;
struct vmem tc_d_mem_arena_store;
struct vmem tc_s_mem_arena_store;
struct vmem_btag tc_io_btag_store[TTWOGA_NBTS];
struct vmem_btag tc_d_mem_btag_store[TTWOGA_NBTS];
struct vmem_btag tc_s_mem_btag_store[TTWOGA_NBTS];

vmem_t *tc_io_arena;
vmem_t *tc_d_mem_arena;
vmem_t *tc_s_mem_arena;

struct alpha_shared_intr *tc_intrtab;

void (*tc_enable_intr)(struct ttwoga_config *, int, int);
void (*tc_setlevel)(struct ttwoga_config *, int, int);
void (*tc_eoi)(struct ttwoga_config *, int);
};

extern cpuid_t ttwoga_conf_cpu;

struct ttwoga_config *ttwoga_init(int);
void ttwoga_pci_init(pci_chipset_tag_t, void *);
void ttwoga_dma_init(struct ttwoga_config *);

void ttwoga_bus_io_init(bus_space_tag_t, void *);
void ttwoga_bus_mem_init(bus_space_tag_t, void *);