malta_intr.c revision 1.3.2.2
1 1.3.2.2 jdolecek /* $NetBSD: malta_intr.c,v 1.3.2.2 2002/06/23 17:35:59 jdolecek Exp $ */ 2 1.3.2.2 jdolecek 3 1.3.2.2 jdolecek /* 4 1.3.2.2 jdolecek * Copyright 2001, 2002 Wasabi Systems, Inc. 5 1.3.2.2 jdolecek * All rights reserved. 6 1.3.2.2 jdolecek * 7 1.3.2.2 jdolecek * Written by Jason R. Thorpe and Simon Burge for Wasabi Systems, Inc. 8 1.3.2.2 jdolecek * 9 1.3.2.2 jdolecek * Redistribution and use in source and binary forms, with or without 10 1.3.2.2 jdolecek * modification, are permitted provided that the following conditions 11 1.3.2.2 jdolecek * are met: 12 1.3.2.2 jdolecek * 1. Redistributions of source code must retain the above copyright 13 1.3.2.2 jdolecek * notice, this list of conditions and the following disclaimer. 14 1.3.2.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 15 1.3.2.2 jdolecek * notice, this list of conditions and the following disclaimer in the 16 1.3.2.2 jdolecek * documentation and/or other materials provided with the distribution. 17 1.3.2.2 jdolecek * 3. All advertising materials mentioning features or use of this software 18 1.3.2.2 jdolecek * must display the following acknowledgement: 19 1.3.2.2 jdolecek * This product includes software developed for the NetBSD Project by 20 1.3.2.2 jdolecek * Wasabi Systems, Inc. 21 1.3.2.2 jdolecek * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.3.2.2 jdolecek * or promote products derived from this software without specific prior 23 1.3.2.2 jdolecek * written permission. 24 1.3.2.2 jdolecek * 25 1.3.2.2 jdolecek * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.3.2.2 jdolecek * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.3.2.2 jdolecek * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.3.2.2 jdolecek * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.3.2.2 jdolecek * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.3.2.2 jdolecek * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.3.2.2 jdolecek * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.3.2.2 jdolecek * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.3.2.2 jdolecek * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.3.2.2 jdolecek * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.3.2.2 jdolecek * POSSIBILITY OF SUCH DAMAGE. 36 1.3.2.2 jdolecek */ 37 1.3.2.2 jdolecek 38 1.3.2.2 jdolecek /* 39 1.3.2.2 jdolecek * Platform-specific interrupt support for the MIPS Malta. 40 1.3.2.2 jdolecek */ 41 1.3.2.2 jdolecek 42 1.3.2.2 jdolecek 43 1.3.2.2 jdolecek #include <sys/param.h> 44 1.3.2.2 jdolecek #include <sys/device.h> 45 1.3.2.2 jdolecek #include <sys/kernel.h> 46 1.3.2.2 jdolecek #include <sys/malloc.h> 47 1.3.2.2 jdolecek 48 1.3.2.2 jdolecek #include <mips/locore.h> 49 1.3.2.2 jdolecek 50 1.3.2.2 jdolecek #include <evbmips/evbmips/clockvar.h> 51 1.3.2.2 jdolecek 52 1.3.2.2 jdolecek #include <evbmips/malta/maltavar.h> 53 1.3.2.2 jdolecek #include <evbmips/malta/pci/pcibvar.h> 54 1.3.2.2 jdolecek 55 1.3.2.2 jdolecek #include <dev/ic/mc146818reg.h> /* for malta_cal_timer() */ 56 1.3.2.2 jdolecek 57 1.3.2.2 jdolecek #include <dev/isa/isavar.h> 58 1.3.2.2 jdolecek #include <dev/pci/pciidereg.h> 59 1.3.2.2 jdolecek 60 1.3.2.2 jdolecek /* 61 1.3.2.2 jdolecek * This is a mask of bits to clear in the SR when we go to a 62 1.3.2.2 jdolecek * given hardware interrupt priority level. 63 1.3.2.2 jdolecek */ 64 1.3.2.2 jdolecek const u_int32_t ipl_sr_bits[_IPL_N] = { 65 1.3.2.2 jdolecek 0, /* IPL_NONE */ 66 1.3.2.2 jdolecek 67 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_0, /* IPL_SOFT */ 68 1.3.2.2 jdolecek 69 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_0, /* IPL_SOFTCLOCK */ 70 1.3.2.2 jdolecek 71 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_0| 72 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_1, /* IPL_SOFTNET */ 73 1.3.2.2 jdolecek 74 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_0| 75 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_1, /* IPL_SOFTSERIAL */ 76 1.3.2.2 jdolecek 77 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_0| 78 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_1| 79 1.3.2.2 jdolecek MIPS_INT_MASK_0, /* IPL_BIO */ 80 1.3.2.2 jdolecek 81 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_0| 82 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_1| 83 1.3.2.2 jdolecek MIPS_INT_MASK_0, /* IPL_NET */ 84 1.3.2.2 jdolecek 85 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_0| 86 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_1| 87 1.3.2.2 jdolecek MIPS_INT_MASK_0, /* IPL_{TTY,SERIAL} */ 88 1.3.2.2 jdolecek 89 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_0| 90 1.3.2.2 jdolecek MIPS_SOFT_INT_MASK_1| 91 1.3.2.2 jdolecek MIPS_INT_MASK_0| 92 1.3.2.2 jdolecek MIPS_INT_MASK_1| 93 1.3.2.2 jdolecek MIPS_INT_MASK_2| 94 1.3.2.2 jdolecek MIPS_INT_MASK_3| 95 1.3.2.2 jdolecek MIPS_INT_MASK_4| 96 1.3.2.2 jdolecek MIPS_INT_MASK_5, /* IPL_{CLOCK,HIGH} */ 97 1.3.2.2 jdolecek }; 98 1.3.2.2 jdolecek 99 1.3.2.2 jdolecek struct malta_cpuintr { 100 1.3.2.2 jdolecek LIST_HEAD(, evbmips_intrhand) cintr_list; 101 1.3.2.2 jdolecek struct evcnt cintr_count; 102 1.3.2.2 jdolecek }; 103 1.3.2.2 jdolecek #define NINTRS 5 /* MIPS INT0 - INT4 */ 104 1.3.2.2 jdolecek 105 1.3.2.2 jdolecek struct malta_cpuintr malta_cpuintrs[NINTRS]; 106 1.3.2.2 jdolecek const char *malta_cpuintrnames[NINTRS] = { 107 1.3.2.2 jdolecek "int 0 (piix4)", 108 1.3.2.2 jdolecek "int 1 (smi)", 109 1.3.2.2 jdolecek "int 2 (uart)", 110 1.3.2.2 jdolecek "int 3 (core hi/gt64120)", 111 1.3.2.2 jdolecek "int 4 (core lo)", 112 1.3.2.2 jdolecek }; 113 1.3.2.2 jdolecek 114 1.3.2.2 jdolecek static int malta_pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 115 1.3.2.2 jdolecek static const char 116 1.3.2.2 jdolecek *malta_pci_intr_string(void *, pci_intr_handle_t); 117 1.3.2.2 jdolecek static const struct evcnt 118 1.3.2.2 jdolecek *malta_pci_intr_evcnt(void *, pci_intr_handle_t); 119 1.3.2.2 jdolecek static void *malta_pci_intr_establish(void *, pci_intr_handle_t, int, 120 1.3.2.2 jdolecek int (*)(void *), void *); 121 1.3.2.2 jdolecek static void malta_pci_intr_disestablish(void *, void *); 122 1.3.2.2 jdolecek static void malta_pci_conf_interrupt(void *, int, int, int, int, int *); 123 1.3.2.2 jdolecek static void *malta_pciide_compat_intr_establish(void *, struct device *, 124 1.3.2.2 jdolecek struct pci_attach_args *, int, int (*)(void *), void *); 125 1.3.2.2 jdolecek 126 1.3.2.2 jdolecek void 127 1.3.2.2 jdolecek evbmips_intr_init(void) 128 1.3.2.2 jdolecek { 129 1.3.2.2 jdolecek struct malta_config *mcp = &malta_configuration; 130 1.3.2.2 jdolecek int i; 131 1.3.2.2 jdolecek 132 1.3.2.2 jdolecek for (i = 0; i < NINTRS; i++) { 133 1.3.2.2 jdolecek LIST_INIT(&malta_cpuintrs[i].cintr_list); 134 1.3.2.2 jdolecek evcnt_attach_dynamic(&malta_cpuintrs[i].cintr_count, 135 1.3.2.2 jdolecek EVCNT_TYPE_INTR, NULL, "mips", malta_cpuintrnames[i]); 136 1.3.2.2 jdolecek } 137 1.3.2.2 jdolecek 138 1.3.2.2 jdolecek evcnt_attach_static(&mips_int5_evcnt); 139 1.3.2.2 jdolecek 140 1.3.2.2 jdolecek mcp->mc_pc.pc_intr_v = NULL; 141 1.3.2.2 jdolecek mcp->mc_pc.pc_intr_map = malta_pci_intr_map; 142 1.3.2.2 jdolecek mcp->mc_pc.pc_intr_string = malta_pci_intr_string; 143 1.3.2.2 jdolecek mcp->mc_pc.pc_intr_evcnt = malta_pci_intr_evcnt; 144 1.3.2.2 jdolecek mcp->mc_pc.pc_intr_establish = malta_pci_intr_establish; 145 1.3.2.2 jdolecek mcp->mc_pc.pc_intr_disestablish = malta_pci_intr_disestablish; 146 1.3.2.2 jdolecek mcp->mc_pc.pc_conf_interrupt = malta_pci_conf_interrupt; 147 1.3.2.2 jdolecek mcp->mc_pc.pc_pciide_compat_intr_establish = 148 1.3.2.2 jdolecek malta_pciide_compat_intr_establish; 149 1.3.2.2 jdolecek } 150 1.3.2.2 jdolecek 151 1.3.2.2 jdolecek void 152 1.3.2.2 jdolecek malta_cal_timer(bus_space_tag_t st, bus_space_handle_t sh) 153 1.3.2.2 jdolecek { 154 1.3.2.2 jdolecek u_long ctrdiff[4], startctr, endctr; 155 1.3.2.2 jdolecek u_int8_t regc; 156 1.3.2.2 jdolecek int i; 157 1.3.2.2 jdolecek 158 1.3.2.2 jdolecek /* Disable interrupts first. */ 159 1.3.2.2 jdolecek bus_space_write_1(st, sh, 0, MC_REGB); 160 1.3.2.2 jdolecek bus_space_write_1(st, sh, 1, MC_REGB_SQWE | MC_REGB_BINARY | 161 1.3.2.2 jdolecek MC_REGB_24HR); 162 1.3.2.2 jdolecek 163 1.3.2.2 jdolecek /* Initialize for 16Hz. */ 164 1.3.2.2 jdolecek bus_space_write_1(st, sh, 0, MC_REGA); 165 1.3.2.2 jdolecek bus_space_write_1(st, sh, 1, MC_BASE_32_KHz | MC_RATE_16_Hz); 166 1.3.2.2 jdolecek 167 1.3.2.2 jdolecek /* Run the loop an extra time to prime the cache. */ 168 1.3.2.2 jdolecek for (i = 0; i < 4; i++) { 169 1.3.2.2 jdolecek // led_display('h', 'z', '0' + i, ' '); 170 1.3.2.2 jdolecek 171 1.3.2.2 jdolecek /* Enable the interrupt. */ 172 1.3.2.2 jdolecek bus_space_write_1(st, sh, 0, MC_REGB); 173 1.3.2.2 jdolecek bus_space_write_1(st, sh, 1, MC_REGB_PIE | MC_REGB_SQWE | 174 1.3.2.2 jdolecek MC_REGB_BINARY | MC_REGB_24HR); 175 1.3.2.2 jdolecek 176 1.3.2.2 jdolecek /* Go to REGC. */ 177 1.3.2.2 jdolecek bus_space_write_1(st, sh, 0, MC_REGC); 178 1.3.2.2 jdolecek 179 1.3.2.2 jdolecek /* Wait for it to happen. */ 180 1.3.2.2 jdolecek startctr = mips3_cp0_count_read(); 181 1.3.2.2 jdolecek do { 182 1.3.2.2 jdolecek regc = bus_space_read_1(st, sh, 1); 183 1.3.2.2 jdolecek endctr = mips3_cp0_count_read(); 184 1.3.2.2 jdolecek } while ((regc & MC_REGC_IRQF) == 0); 185 1.3.2.2 jdolecek 186 1.3.2.2 jdolecek /* Already ACK'd. */ 187 1.3.2.2 jdolecek 188 1.3.2.2 jdolecek /* Disable. */ 189 1.3.2.2 jdolecek bus_space_write_1(st, sh, 0, MC_REGB); 190 1.3.2.2 jdolecek bus_space_write_1(st, sh, 1, MC_REGB_SQWE | MC_REGB_BINARY | 191 1.3.2.2 jdolecek MC_REGB_24HR); 192 1.3.2.2 jdolecek 193 1.3.2.2 jdolecek ctrdiff[i] = endctr - startctr; 194 1.3.2.2 jdolecek } 195 1.3.2.2 jdolecek 196 1.3.2.2 jdolecek /* Compute the number of cycles per second. */ 197 1.3.2.2 jdolecek curcpu()->ci_cpu_freq = ((ctrdiff[2] + ctrdiff[3]) / 2) * 16/*Hz*/; 198 1.3.2.2 jdolecek 199 1.3.2.2 jdolecek /* Compute the number of ticks for hz. */ 200 1.3.2.2 jdolecek curcpu()->ci_cycles_per_hz = (curcpu()->ci_cpu_freq + hz / 2) / hz; 201 1.3.2.2 jdolecek 202 1.3.2.2 jdolecek /* Compute the delay divisor and reciprical. */ 203 1.3.2.2 jdolecek curcpu()->ci_divisor_delay = 204 1.3.2.2 jdolecek ((curcpu()->ci_cpu_freq + 500000) / 1000000); 205 1.3.2.2 jdolecek MIPS_SET_CI_RECIPRICAL(curcpu()); 206 1.3.2.2 jdolecek 207 1.3.2.2 jdolecek /* 208 1.3.2.2 jdolecek * Get correct cpu frequency if the CPU runs at twice the 209 1.3.2.2 jdolecek * external/cp0-count frequency. 210 1.3.2.2 jdolecek */ 211 1.3.2.2 jdolecek if (mips_cpu_flags & CPU_MIPS_DOUBLE_COUNT) 212 1.3.2.2 jdolecek curcpu()->ci_cpu_freq *= 2; 213 1.3.2.2 jdolecek 214 1.3.2.2 jdolecek #ifdef DEBUG 215 1.3.2.2 jdolecek printf("Timer calibration: %lu cycles/sec [(%lu, %lu) * 16]\n", 216 1.3.2.2 jdolecek curcpu()->ci_cpu_freq, ctrdiff[2], ctrdiff[3]); 217 1.3.2.2 jdolecek #endif 218 1.3.2.2 jdolecek } 219 1.3.2.2 jdolecek 220 1.3.2.2 jdolecek void * 221 1.3.2.2 jdolecek evbmips_intr_establish(int irq, int (*func)(void *), void *arg) 222 1.3.2.2 jdolecek { 223 1.3.2.2 jdolecek struct evbmips_intrhand *ih; 224 1.3.2.2 jdolecek int s; 225 1.3.2.2 jdolecek 226 1.3.2.2 jdolecek ih = malloc(sizeof(*ih), M_DEVBUF, M_NOWAIT); 227 1.3.2.2 jdolecek if (ih == NULL) 228 1.3.2.2 jdolecek return (NULL); 229 1.3.2.2 jdolecek 230 1.3.2.2 jdolecek ih->ih_func = func; 231 1.3.2.2 jdolecek ih->ih_arg = arg; 232 1.3.2.2 jdolecek 233 1.3.2.2 jdolecek s = splhigh(); 234 1.3.2.2 jdolecek 235 1.3.2.2 jdolecek /* 236 1.3.2.2 jdolecek * Link it into the tables. 237 1.3.2.2 jdolecek */ 238 1.3.2.2 jdolecek LIST_INSERT_HEAD(&malta_cpuintrs[0].cintr_list, ih, ih_q); 239 1.3.2.2 jdolecek 240 1.3.2.2 jdolecek /* XXX - should check that MIPS_INT_MASK_0 is set... */ 241 1.3.2.2 jdolecek 242 1.3.2.2 jdolecek splx(s); 243 1.3.2.2 jdolecek 244 1.3.2.2 jdolecek return (ih); 245 1.3.2.2 jdolecek } 246 1.3.2.2 jdolecek 247 1.3.2.2 jdolecek void 248 1.3.2.2 jdolecek evbmips_intr_disestablish(void *arg) 249 1.3.2.2 jdolecek { 250 1.3.2.2 jdolecek struct evbmips_intrhand *ih = arg; 251 1.3.2.2 jdolecek int s; 252 1.3.2.2 jdolecek 253 1.3.2.2 jdolecek s = splhigh(); 254 1.3.2.2 jdolecek 255 1.3.2.2 jdolecek /* 256 1.3.2.2 jdolecek * First, remove it from the table. 257 1.3.2.2 jdolecek */ 258 1.3.2.2 jdolecek LIST_REMOVE(ih, ih_q); 259 1.3.2.2 jdolecek 260 1.3.2.2 jdolecek /* XXX - disable MIPS_INT_MASK_0 if list is empty? */ 261 1.3.2.2 jdolecek 262 1.3.2.2 jdolecek splx(s); 263 1.3.2.2 jdolecek 264 1.3.2.2 jdolecek free(ih, M_DEVBUF); 265 1.3.2.2 jdolecek } 266 1.3.2.2 jdolecek 267 1.3.2.2 jdolecek void 268 1.3.2.2 jdolecek evbmips_iointr(uint32_t status, uint32_t cause, uint32_t pc, uint32_t ipending) 269 1.3.2.2 jdolecek { 270 1.3.2.2 jdolecek struct evbmips_intrhand *ih; 271 1.3.2.2 jdolecek 272 1.3.2.2 jdolecek /* Check for error interrupts (SMI, GT62140) */ 273 1.3.2.2 jdolecek if (ipending & (MIPS_INT_MASK_1 | MIPS_INT_MASK_3)) { 274 1.3.2.2 jdolecek if (ipending & MIPS_INT_MASK_1) 275 1.3.2.2 jdolecek panic("piix4 SMI interrupt"); 276 1.3.2.2 jdolecek if (ipending & MIPS_INT_MASK_3) 277 1.3.2.2 jdolecek panic("gt62140 error interrupt"); 278 1.3.2.2 jdolecek } 279 1.3.2.2 jdolecek 280 1.3.2.2 jdolecek /* 281 1.3.2.2 jdolecek * Read the interrupt pending registers, mask them with the 282 1.3.2.2 jdolecek * ones we have enabled, and service them in order of decreasing 283 1.3.2.2 jdolecek * priority. 284 1.3.2.2 jdolecek */ 285 1.3.2.2 jdolecek if (ipending & MIPS_INT_MASK_0) { 286 1.3.2.2 jdolecek /* All interrupts are gated through MIPS HW interrupt 0 */ 287 1.3.2.2 jdolecek malta_cpuintrs[0].cintr_count.ev_count++; 288 1.3.2.2 jdolecek LIST_FOREACH(ih, &malta_cpuintrs[0].cintr_list, ih_q) 289 1.3.2.2 jdolecek (*ih->ih_func)(ih->ih_arg); 290 1.3.2.2 jdolecek cause &= ~MIPS_INT_MASK_0; 291 1.3.2.2 jdolecek } 292 1.3.2.2 jdolecek 293 1.3.2.2 jdolecek /* Re-enable anything that we have processed. */ 294 1.3.2.2 jdolecek _splset(MIPS_SR_INT_IE | ((status & ~cause) & MIPS_HARD_INT_MASK)); 295 1.3.2.2 jdolecek } 296 1.3.2.2 jdolecek 297 1.3.2.2 jdolecek /* 298 1.3.2.2 jdolecek * YAMON configures pa_intrline correctly (so far), so we trust it to DTRT 299 1.3.2.2 jdolecek * in the future... 300 1.3.2.2 jdolecek */ 301 1.3.2.2 jdolecek #undef YAMON_IRQ_MAP_BAD 302 1.3.2.2 jdolecek 303 1.3.2.2 jdolecek /* 304 1.3.2.2 jdolecek * PCI interrupt support 305 1.3.2.2 jdolecek */ 306 1.3.2.2 jdolecek static int 307 1.3.2.2 jdolecek malta_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 308 1.3.2.2 jdolecek { 309 1.3.2.2 jdolecek #ifdef YAMON_IRQ_MAP_BAD 310 1.3.2.2 jdolecek static const int pciirqmap[13/*device*/][4/*pin*/] = { 311 1.3.2.2 jdolecek { -1, -1, -1, 11 }, /* 10: USB */ 312 1.3.2.2 jdolecek { 10, -1, -1, -1 }, /* 11: Ethernet */ 313 1.3.2.2 jdolecek { 11, -1, -1, -1 }, /* 12: Audio */ 314 1.3.2.2 jdolecek { -1, -1, -1, -1 }, /* 13: not used */ 315 1.3.2.2 jdolecek { -1, -1, -1, -1 }, /* 14: not used */ 316 1.3.2.2 jdolecek { -1, -1, -1, -1 }, /* 15: not used */ 317 1.3.2.2 jdolecek { -1, -1, -1, -1 }, /* 16: not used */ 318 1.3.2.2 jdolecek { -1, -1, -1, -1 }, /* 17: Core card(?) */ 319 1.3.2.2 jdolecek { 10, 10, 11, 11 }, /* 18: PCI Slot 1 */ 320 1.3.2.2 jdolecek { 10, 11, 11, 10 }, /* 19: PCI Slot 2 */ 321 1.3.2.2 jdolecek { 11, 11, 10, 10 }, /* 20: PCI Slot 3 */ 322 1.3.2.2 jdolecek { 11, 10, 10, 11 }, /* 21: PCI Slot 4 */ 323 1.3.2.2 jdolecek }; 324 1.3.2.2 jdolecek int buspin, device, irq; 325 1.3.2.2 jdolecek #else /* !YAMON_IRQ_MAP_BAD */ 326 1.3.2.2 jdolecek int buspin; 327 1.3.2.2 jdolecek #endif /* !YAMON_IRQ_MAP_BAD */ 328 1.3.2.2 jdolecek 329 1.3.2.2 jdolecek buspin = pa->pa_intrpin; 330 1.3.2.2 jdolecek 331 1.3.2.2 jdolecek if (buspin == 0) { 332 1.3.2.2 jdolecek /* No IRQ used. */ 333 1.3.2.2 jdolecek return (1); 334 1.3.2.2 jdolecek } 335 1.3.2.2 jdolecek 336 1.3.2.2 jdolecek if (buspin > 4) { 337 1.3.2.2 jdolecek printf("malta_pci_intr_map: bad interrupt pin %d\n", buspin); 338 1.3.2.2 jdolecek return (1); 339 1.3.2.2 jdolecek } 340 1.3.2.2 jdolecek 341 1.3.2.2 jdolecek #ifdef YAMON_IRQ_MAP_BAD 342 1.3.2.2 jdolecek pci_decompose_tag(pa->pa_pc, pa->pa_intrtag, NULL, &device, NULL); 343 1.3.2.2 jdolecek 344 1.3.2.2 jdolecek if (device < 10 || device > 21) { 345 1.3.2.2 jdolecek printf("malta_pci_intr_map: bad device %d\n", device); 346 1.3.2.2 jdolecek return (1); 347 1.3.2.2 jdolecek } 348 1.3.2.2 jdolecek 349 1.3.2.2 jdolecek irq = pciirqmap[device - 10][buspin - 1]; 350 1.3.2.2 jdolecek if (irq == -1) { 351 1.3.2.2 jdolecek printf("malta_pci_intr_map: no mapping for device %d pin %d\n", 352 1.3.2.2 jdolecek device, buspin); 353 1.3.2.2 jdolecek return (1); 354 1.3.2.2 jdolecek } 355 1.3.2.2 jdolecek 356 1.3.2.2 jdolecek *ihp = irq; 357 1.3.2.2 jdolecek #else /* !YAMON_IRQ_MAP_BAD */ 358 1.3.2.2 jdolecek *ihp = pa->pa_intrline; 359 1.3.2.2 jdolecek #endif /* !YAMON_IRQ_MAP_BAD */ 360 1.3.2.2 jdolecek return (0); 361 1.3.2.2 jdolecek } 362 1.3.2.2 jdolecek 363 1.3.2.2 jdolecek static const char * 364 1.3.2.2 jdolecek malta_pci_intr_string(void *v, pci_intr_handle_t irq) 365 1.3.2.2 jdolecek { 366 1.3.2.2 jdolecek 367 1.3.2.2 jdolecek return (isa_intr_string(pcib_ic, irq)); 368 1.3.2.2 jdolecek } 369 1.3.2.2 jdolecek 370 1.3.2.2 jdolecek static const struct evcnt * 371 1.3.2.2 jdolecek malta_pci_intr_evcnt(void *v, pci_intr_handle_t irq) 372 1.3.2.2 jdolecek { 373 1.3.2.2 jdolecek 374 1.3.2.2 jdolecek return (isa_intr_evcnt(pcib_ic, irq)); 375 1.3.2.2 jdolecek } 376 1.3.2.2 jdolecek 377 1.3.2.2 jdolecek static void * 378 1.3.2.2 jdolecek malta_pci_intr_establish(void *v, pci_intr_handle_t irq, int level, 379 1.3.2.2 jdolecek int (*func)(void *), void *arg) 380 1.3.2.2 jdolecek { 381 1.3.2.2 jdolecek 382 1.3.2.2 jdolecek return (isa_intr_establish(pcib_ic, irq, IST_LEVEL, level, func, arg)); 383 1.3.2.2 jdolecek } 384 1.3.2.2 jdolecek 385 1.3.2.2 jdolecek static void 386 1.3.2.2 jdolecek malta_pci_intr_disestablish(void *v, void *arg) 387 1.3.2.2 jdolecek { 388 1.3.2.2 jdolecek 389 1.3.2.2 jdolecek return (isa_intr_disestablish(pcib_ic, arg)); 390 1.3.2.2 jdolecek } 391 1.3.2.2 jdolecek 392 1.3.2.2 jdolecek static void 393 1.3.2.2 jdolecek malta_pci_conf_interrupt(void *v, int bus, int dev, int func, int swiz, 394 1.3.2.2 jdolecek int *iline) 395 1.3.2.2 jdolecek { 396 1.3.2.2 jdolecek 397 1.3.2.2 jdolecek /* 398 1.3.2.2 jdolecek * We actually don't need to do anything; everything is handled 399 1.3.2.2 jdolecek * in pci_intr_map(). 400 1.3.2.2 jdolecek */ 401 1.3.2.2 jdolecek *iline = 0; 402 1.3.2.2 jdolecek } 403 1.3.2.2 jdolecek 404 1.3.2.2 jdolecek void * 405 1.3.2.2 jdolecek malta_pciide_compat_intr_establish(void *v, struct device *dev, 406 1.3.2.2 jdolecek struct pci_attach_args *pa, int chan, int (*func)(void *), void *arg) 407 1.3.2.2 jdolecek { 408 1.3.2.2 jdolecek pci_chipset_tag_t pc = pa->pa_pc; 409 1.3.2.2 jdolecek void *cookie; 410 1.3.2.2 jdolecek int bus, irq; 411 1.3.2.2 jdolecek 412 1.3.2.2 jdolecek pci_decompose_tag(pc, pa->pa_tag, &bus, NULL, NULL); 413 1.3.2.2 jdolecek 414 1.3.2.2 jdolecek /* 415 1.3.2.2 jdolecek * If this isn't PCI bus #0, all bets are off. 416 1.3.2.2 jdolecek */ 417 1.3.2.2 jdolecek if (bus != 0) 418 1.3.2.2 jdolecek return (NULL); 419 1.3.2.2 jdolecek 420 1.3.2.2 jdolecek irq = PCIIDE_COMPAT_IRQ(chan); 421 1.3.2.2 jdolecek cookie = isa_intr_establish(pcib_ic, irq, IST_EDGE, IPL_BIO, func, arg); 422 1.3.2.2 jdolecek if (cookie == NULL) 423 1.3.2.2 jdolecek return (NULL); 424 1.3.2.2 jdolecek printf("%s: %s channel interrupting at %s\n", dev->dv_xname, 425 1.3.2.2 jdolecek PCIIDE_CHANNEL_NAME(chan), malta_pci_intr_string(v, irq)); 426 1.3.2.2 jdolecek return (cookie); 427 1.3.2.2 jdolecek } 428
Indexes created Sun Nov 02 23:10:09 GMT 2025