1 /* $NetBSD: mcpciavar.h,v 1.7 2023/12/04 00:32:10 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1998 by Matthew Jacob 5 * NASA AMES Research Center. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/extent.h> 34 #include <sys/vmem_impl.h> 35 36 #include <dev/pci/pcivar.h> 37 38 #include <alpha/pci/pci_sgmap_pte64.h> 39 40 #define MCPCIA_IO_NBTS VMEM_EST_BTCOUNT(2, 8) 41 #define MCPCIA_D_MEM_NBTS VMEM_EST_BTCOUNT(1, 8) 42 #define MCPCIA_S_MEM_NBTS VMEM_EST_BTCOUNT(2, 8) 43 44 /* 45 * MPCIA configuration. 46 */ 47 struct mcpcia_config { 48 int cc_gid; /* GID of this MCbus */ 49 int cc_mid; /* MCbus Module ID */ 50 int cc_initted; 51 struct alpha_bus_space cc_iot; 52 struct alpha_bus_space cc_memt; 53 vmem_t * cc_io_arena; 54 vmem_t * cc_d_mem_arena; 55 vmem_t * cc_s_mem_arena; 56 struct alpha_pci_chipset cc_pc; 57 struct mcpcia_softc * cc_sc; /* back pointer */ 58 struct vmem cc_io_arena_store; 59 struct vmem cc_d_mem_arena_store; 60 struct vmem cc_s_mem_arena_store; 61 struct vmem_btag cc_io_btag_store[MCPCIA_IO_NBTS]; 62 struct vmem_btag cc_d_mem_btag_store[MCPCIA_D_MEM_NBTS]; 63 struct vmem_btag cc_s_mem_btag_store[MCPCIA_S_MEM_NBTS]; 64 unsigned long cc_sysbase; /* shorthand */ 65 struct alpha_bus_dma_tag cc_dmat_direct; 66 struct alpha_bus_dma_tag cc_dmat_pci_sgmap; 67 struct alpha_bus_dma_tag cc_dmat_isa_sgmap; 68 struct alpha_sgmap cc_pci_sgmap; 69 struct alpha_sgmap cc_isa_sgmap; 70 }; 71 72 struct mcpcia_softc { 73 device_t mcpcia_dev; 74 struct mcpcia_config *mcpcia_cc; /* config info */ 75 }; 76 77 void mcpcia_init(void); 78 void mcpcia_config_cleanup(void); 79 80 void mcpcia_pci_init(pci_chipset_tag_t, void *); 81 void mcpcia_dma_init(struct mcpcia_config *); 82 83 void mcpcia_bus_io_init(bus_space_tag_t, void *); 84 void mcpcia_bus_mem_init(bus_space_tag_t, void *); 85 86 /* 87 * IO Interrupt handler. 88 */ 89 void mcpcia_iointr(void *, unsigned long); 90 91 /* 92 * There are four PCI slots per MCPCIA PCI bus here, but some are 'hidden'- 93 * none seems to be higher than 6 though. 94 */ 95 #define MCPCIA_MAXDEV 6 96 #define MCPCIA_MAXSLOT 8 97 98 /* 99 * Interrupt Stuff for MCPCIA systems. 100 * 101 * EISA interrupts (at vector 0x800) have to be shared interrupts- 102 * and that can be easily managed. All the PCI interrupts are deterministic 103 * in that they start at vector 0x900, 0x40 per PCI slot, 0x200 per 104 * MCPCIA, 4 MCPCIAs per GCBUS.... 105 */ 106 #define MCPCIA_EISA_KEYB_IRQ 1 107 #define MCPCIA_EISA_MOUSE_IRQ 12 108 #define MCPCIA_VEC_EISA 0x800 109 #define MCPCIA_VEC_PCI 0x900 110 111 /* 112 * Special Vectors 113 */ 114 #define MCPCIA_I2C_CVEC 0xA90 115 #define MCPCIA_I2C_BVEC 0xAA0 116