1/*- 2 * Copyright (c) 1998 Doug Rabson 3 * Copyright (c) 2001 Thomas Moestl <tmm@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 12 unchanged lines hidden (view full) --- 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * from: FreeBSD: src/sys/alpha/isa/isa.c,v 1.26 2001/07/11 28 * |
29 * $FreeBSD: head/sys/sparc64/isa/isa.c 117119 2003-07-01 14:52:47Z tmm $ |
30 */ 31 |
32#include "opt_ofw_pci.h" 33 |
34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> 37#include <sys/module.h> 38#include <sys/bus.h> 39#include <machine/bus.h> 40#include <sys/malloc.h> 41#include <sys/proc.h> --- 12 unchanged lines hidden (view full) --- 54 55#include <machine/intr_machdep.h> 56#include <machine/ofw_bus.h> 57#include <machine/resource.h> 58 59#include <sparc64/pci/ofw_pci.h> 60#include <sparc64/isa/ofw_isa.h> 61 |
62/* There can be only one ISA bus, so it is safe to use globals. */ 63bus_space_tag_t isa_io_bt = NULL; 64bus_space_handle_t isa_io_hdl; 65bus_space_tag_t isa_mem_bt = NULL; 66bus_space_handle_t isa_mem_hdl; 67 68u_int64_t isa_io_base; 69u_int64_t isa_io_limit; 70u_int64_t isa_mem_base; 71u_int64_t isa_mem_limit; 72 73device_t isa_bus_device; 74 75static phandle_t isab_node; |
76static ofw_pci_intr_t isa_ino[8]; |
77 |
78#ifdef OFW_NEWPCI 79struct ofw_bus_iinfo isa_iinfo; 80#endif 81 |
82/* 83 * XXX: This is really partly partly PCI-specific, but unfortunately is 84 * differently enough to have to duplicate it here... 85 */ 86#define ISAB_RANGE_PHYS(r) \ 87 (((u_int64_t)(r)->phys_mid << 32) | (u_int64_t)(r)->phys_lo) 88#define ISAB_RANGE_SPACE(r) (((r)->phys_hi >> 24) & 0x03) 89 --- 7 unchanged lines hidden (view full) --- 97intrmask_t 98isa_irq_pending(void) 99{ 100 intrmask_t pending; 101 int i; 102 103 /* XXX: Is this correct? */ 104 for (i = 7, pending = 0; i >= 0; i--) { |
105 pending <<= 1; 106 if (isa_ino[i] != PCI_INVALID_IRQ) { 107 pending |= (OFW_PCI_INTR_PENDING(isa_bus_device, |
108 isa_ino[i]) == 0) ? 0 : 1; 109 } 110 } 111 return (pending); 112} 113 114void 115isa_init(device_t dev) 116{ 117 device_t bridge; 118 phandle_t node; |
119 ofw_isa_intr_t ino; 120#ifndef OFW_NEWPCI 121 ofw_pci_intr_t rino; 122#endif |
123 struct isa_ranges *br; 124 int nbr, i; 125 126 /* The parent of the bus must be a PCI-ISA bridge. */ 127 bridge = device_get_parent(dev); |
128#ifdef OFW_NEWPCI 129 isab_node = ofw_pci_get_node(bridge); 130#else |
131 isab_node = ofw_pci_node(bridge); |
132#endif |
133 nbr = OF_getprop_alloc(isab_node, "ranges", sizeof(*br), (void **)&br); 134 if (nbr <= 0) 135 panic("isa_init: cannot get bridge range property"); |
136 137#ifdef OFW_NEWPCI 138 ofw_bus_setup_iinfo(isab_node, &isa_iinfo, sizeof(ofw_isa_intr_t)); 139#endif 140 |
141 /* |
142 * This is really a bad kludge; however, it is needed to provide 143 * isa_irq_pending(), which is unfortunately still used by some 144 * drivers. |
145 */ 146 for (i = 0; i < 8; i++) |
147 isa_ino[i] = PCI_INVALID_IRQ; |
148 for (node = OF_child(isab_node); node != 0; node = OF_peer(node)) { 149 if (OF_getprop(node, "interrupts", &ino, sizeof(ino)) == -1) 150 continue; 151 if (ino > 7) 152 panic("isa_init: XXX: ino too large"); |
153#ifdef OFW_NEWPCI 154 isa_ino[ino] = ofw_isa_route_intr(bridge, node, &isa_iinfo, 155 ino); 156#else 157 rino = ofw_bus_route_intr(node, ino, ofw_pci_orb_callback, dev); 158 isa_ino[ino] = rino == ORIR_NOTFOUND ? PCI_INVALID_IRQ : rino; 159#endif |
160 } 161 162 for (nbr -= 1; nbr >= 0; nbr--) { 163 switch(ISAB_RANGE_SPACE(br + nbr)) { 164 case ISAR_SPACE_IO: 165 /* This is probably always 0. */ 166 isa_io_base = ISAB_RANGE_PHYS(&br[nbr]); 167 isa_io_limit = br[nbr].size; |
168 isa_io_hdl = OFW_PCI_GET_BUS_HANDLE(bridge, 169 SYS_RES_IOPORT, isa_io_base, &isa_io_bt); |
170 break; 171 case ISAR_SPACE_MEM: 172 /* This is probably always 0. */ 173 isa_mem_base = ISAB_RANGE_PHYS(&br[nbr]); 174 isa_mem_limit = br[nbr].size; |
175 isa_mem_hdl = OFW_PCI_GET_BUS_HANDLE(bridge, 176 SYS_RES_MEMORY, isa_mem_base, &isa_mem_bt); |
177 break; 178 } 179 } 180 free(br, M_OFWPROP); 181} 182 183static int 184isa_route_intr_res(device_t bus, u_long start, u_long end) 185{ 186 int res; 187 188 if (start != end) { 189 panic("isa_route_intr_res: allocation of interrupt range not " 190 "supported (0x%lx - 0x%lx)", start, end); 191 } 192 if (start > 7) 193 panic("isa_route_intr_res: start out of isa range"); 194 res = isa_ino[start]; |
195 if (res == PCI_INVALID_IRQ) |
196 device_printf(bus, "could not map interrupt %d\n", res); 197 return (res); 198} 199 200struct resource * 201isa_alloc_resource(device_t bus, device_t child, int type, int *rid, 202 u_long start, u_long end, u_long count, u_int flags) 203{ --- 57 unchanged lines hidden (view full) --- 261 limit = base + isa_io_limit; 262 break; 263 case SYS_RES_IRQ: 264 if (isdefault && passthrough) 265 panic("isa_alloc_resource: cannot pass through default " 266 "irq allocation"); 267 if (!isdefault) { 268 start = end = isa_route_intr_res(bus, start, end); |
269 if (start == PCI_INVALID_IRQ) |
270 return (NULL); 271 } 272 break; 273 default: 274 panic("isa_alloc_resource: unsupported resource type %d", type); 275 } 276 if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) { 277 start = ulmin(start + base, limit); 278 end = ulmin(end + base, limit); 279 } |
280 |
281 /* 282 * This inlines a modified resource_list_alloc(); this is needed 283 * because the resources need to have offsets added to them, which 284 * cannot be done beforehand without patching the resource list entries 285 * (which is ugly). 286 */ 287 if (passthrough) { 288 return (BUS_ALLOC_RESOURCE(device_get_parent(bus), child, --- 17 unchanged lines hidden (view full) --- 306 start += base; 307 end += base; 308 if (!INRANGE(start, base, limit) || 309 !INRANGE(end, base, limit)) 310 return (NULL); 311 break; 312 case SYS_RES_IRQ: 313 start = end = isa_route_intr_res(bus, start, end); |
314 if (start == PCI_INVALID_IRQ) |
315 return (NULL); 316 break; 317 } 318 } 319 320 rle->res = BUS_ALLOC_RESOURCE(device_get_parent(bus), child, 321 type, rid, start, end, count, flags); 322 --- 44 unchanged lines hidden --- |