185556Siwasaki/*- 285556Siwasaki * Copyright (c) 2001 Mitsuru IWASAKI 385556Siwasaki * All rights reserved. 485556Siwasaki * 585556Siwasaki * Redistribution and use in source and binary forms, with or without 685556Siwasaki * modification, are permitted provided that the following conditions 785556Siwasaki * are met: 885556Siwasaki * 1. Redistributions of source code must retain the above copyright 985556Siwasaki * notice, this list of conditions and the following disclaimer. 1085556Siwasaki * 2. Redistributions in binary form must reproduce the above copyright 1185556Siwasaki * notice, this list of conditions and the following disclaimer in the 1285556Siwasaki * documentation and/or other materials provided with the distribution. 1385556Siwasaki * 1485556Siwasaki * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1585556Siwasaki * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1685556Siwasaki * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1785556Siwasaki * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1885556Siwasaki * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1985556Siwasaki * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2085556Siwasaki * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2185556Siwasaki * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2285556Siwasaki * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2385556Siwasaki * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2485556Siwasaki * SUCH DAMAGE. 2585556Siwasaki */ 2685556Siwasaki 27118030Sobrien#include <sys/cdefs.h> 28118030Sobrien__FBSDID("$FreeBSD$"); 29118030Sobrien 3085556Siwasaki#include <sys/param.h> 3185556Siwasaki#include <sys/bus.h> 32177157Sjhb#include <sys/kernel.h> 33177157Sjhb#include <sys/module.h> 34189903Sjkim#include <sys/sysctl.h> 35197863Sjkim 36197439Sjhb#include <vm/vm.h> 37197439Sjhb#include <vm/pmap.h> 3885556Siwasaki 39193530Sjkim#include <contrib/dev/acpica/include/acpi.h> 40197439Sjhb#include <contrib/dev/acpica/include/accommon.h> 41197439Sjhb#include <contrib/dev/acpica/include/actables.h> 42193530Sjkim 4385556Siwasaki#include <dev/acpica/acpivar.h> 4485556Siwasaki 45177157Sjhb#include <machine/nexusvar.h> 46177157Sjhb 47190341Sjkimint acpi_resume_beep; 48189903SjkimTUNABLE_INT("debug.acpi.resume_beep", &acpi_resume_beep); 49190341SjkimSYSCTL_INT(_debug_acpi, OID_AUTO, resume_beep, CTLFLAG_RW, &acpi_resume_beep, 50189903Sjkim 0, "Beep the PC speaker when resuming"); 51190341Sjkim 52190341Sjkimint acpi_reset_video; 53189903SjkimTUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video); 54189903Sjkim 55120347Speterstatic int intr_model = ACPI_INTR_PIC; 56120347Speter 5785556Siwasakiint 5885556Siwasakiacpi_machdep_init(device_t dev) 5985556Siwasaki{ 60215072Sjkim struct acpi_softc *sc; 6185556Siwasaki 62215097Sjkim sc = device_get_softc(dev); 63189903Sjkim 64215097Sjkim acpi_apm_init(sc); 6585556Siwasaki 66120347Speter if (intr_model != ACPI_INTR_PIC) 67120347Speter acpi_SetIntrModel(intr_model); 68120347Speter 69217326Smdf SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, 70189903Sjkim SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, 71189903Sjkim "reset_video", CTLFLAG_RW, &acpi_reset_video, 0, 72189903Sjkim "Call the VESA reset BIOS vector on the resume path"); 73189903Sjkim 7485556Siwasaki return (0); 7585556Siwasaki} 76120347Speter 77120347Spetervoid 78120347Speteracpi_SetDefaultIntrModel(int model) 79120347Speter{ 80120347Speter 81120347Speter intr_model = model; 82120347Speter} 83131312Snjl 84131312Snjlint 85131312Snjlacpi_machdep_quirks(int *quirks) 86131312Snjl{ 87215072Sjkim 88131312Snjl return (0); 89131312Snjl} 90136366Snjl 91136366Snjlvoid 92136366Snjlacpi_cpu_c1() 93136366Snjl{ 94215072Sjkim 95136366Snjl __asm __volatile("sti; hlt"); 96136366Snjl} 97177157Sjhb 98177157Sjhb/* 99197439Sjhb * Support for mapping ACPI tables during early boot. Currently this 100197439Sjhb * uses the crashdump map to map each table. However, the crashdump 101197439Sjhb * map is created in pmap_bootstrap() right after the direct map, so 102197439Sjhb * we should be able to just use pmap_mapbios() here instead. 103197439Sjhb * 104197439Sjhb * This makes the following assumptions about how we use this KVA: 105197439Sjhb * pages 0 and 1 are used to map in the header of each table found via 106197439Sjhb * the RSDT or XSDT and pages 2 to n are used to map in the RSDT or 107197439Sjhb * XSDT. This has to use 2 pages for the table headers in case a 108197439Sjhb * header spans a page boundary. 109197439Sjhb * 110197439Sjhb * XXX: We don't ensure the table fits in the available address space 111197439Sjhb * in the crashdump map. 112197439Sjhb */ 113197439Sjhb 114197439Sjhb/* 115197439Sjhb * Map some memory using the crashdump map. 'offset' is an offset in 116197439Sjhb * pages into the crashdump map to use for the start of the mapping. 117197439Sjhb */ 118197439Sjhbstatic void * 119197439Sjhbtable_map(vm_paddr_t pa, int offset, vm_offset_t length) 120197439Sjhb{ 121197439Sjhb vm_offset_t va, off; 122197439Sjhb void *data; 123197439Sjhb 124197439Sjhb off = pa & PAGE_MASK; 125246855Sjkim length = round_page(length + off); 126197439Sjhb pa = pa & PG_FRAME; 127197439Sjhb va = (vm_offset_t)pmap_kenter_temporary(pa, offset) + 128197439Sjhb (offset * PAGE_SIZE); 129197439Sjhb data = (void *)(va + off); 130197439Sjhb length -= PAGE_SIZE; 131197439Sjhb while (length > 0) { 132197439Sjhb va += PAGE_SIZE; 133197439Sjhb pa += PAGE_SIZE; 134197439Sjhb length -= PAGE_SIZE; 135197439Sjhb pmap_kenter(va, pa); 136197439Sjhb invlpg(va); 137197439Sjhb } 138197439Sjhb return (data); 139197439Sjhb} 140197439Sjhb 141197439Sjhb/* Unmap memory previously mapped with table_map(). */ 142197439Sjhbstatic void 143197439Sjhbtable_unmap(void *data, vm_offset_t length) 144197439Sjhb{ 145197439Sjhb vm_offset_t va, off; 146197439Sjhb 147197439Sjhb va = (vm_offset_t)data; 148197439Sjhb off = va & PAGE_MASK; 149246855Sjkim length = round_page(length + off); 150197439Sjhb va &= ~PAGE_MASK; 151197439Sjhb while (length > 0) { 152197439Sjhb pmap_kremove(va); 153197439Sjhb invlpg(va); 154197439Sjhb va += PAGE_SIZE; 155197439Sjhb length -= PAGE_SIZE; 156197439Sjhb } 157197439Sjhb} 158197439Sjhb 159197439Sjhb/* 160197439Sjhb * Map a table at a given offset into the crashdump map. It first 161197439Sjhb * maps the header to determine the table length and then maps the 162197439Sjhb * entire table. 163197439Sjhb */ 164197439Sjhbstatic void * 165197439Sjhbmap_table(vm_paddr_t pa, int offset, const char *sig) 166197439Sjhb{ 167197439Sjhb ACPI_TABLE_HEADER *header; 168197439Sjhb vm_offset_t length; 169197439Sjhb void *table; 170197439Sjhb 171197439Sjhb header = table_map(pa, offset, sizeof(ACPI_TABLE_HEADER)); 172197439Sjhb if (strncmp(header->Signature, sig, ACPI_NAME_SIZE) != 0) { 173197439Sjhb table_unmap(header, sizeof(ACPI_TABLE_HEADER)); 174197439Sjhb return (NULL); 175197439Sjhb } 176197439Sjhb length = header->Length; 177197439Sjhb table_unmap(header, sizeof(ACPI_TABLE_HEADER)); 178197439Sjhb table = table_map(pa, offset, length); 179197439Sjhb if (ACPI_FAILURE(AcpiTbChecksum(table, length))) { 180197439Sjhb if (bootverbose) 181197439Sjhb printf("ACPI: Failed checksum for table %s\n", sig); 182205332Sjhb#if (ACPI_CHECKSUM_ABORT) 183197439Sjhb table_unmap(table, length); 184197439Sjhb return (NULL); 185205332Sjhb#endif 186197439Sjhb } 187197439Sjhb return (table); 188197439Sjhb} 189197439Sjhb 190197439Sjhb/* 191197439Sjhb * See if a given ACPI table is the requested table. Returns the 192197439Sjhb * length of the able if it matches or zero on failure. 193197439Sjhb */ 194197439Sjhbstatic int 195197439Sjhbprobe_table(vm_paddr_t address, const char *sig) 196197439Sjhb{ 197197439Sjhb ACPI_TABLE_HEADER *table; 198197439Sjhb 199197439Sjhb table = table_map(address, 0, sizeof(ACPI_TABLE_HEADER)); 200197439Sjhb if (table == NULL) { 201197439Sjhb if (bootverbose) 202197439Sjhb printf("ACPI: Failed to map table at 0x%jx\n", 203197439Sjhb (uintmax_t)address); 204197439Sjhb return (0); 205197439Sjhb } 206197439Sjhb if (bootverbose) 207197439Sjhb printf("Table '%.4s' at 0x%jx\n", table->Signature, 208197439Sjhb (uintmax_t)address); 209197439Sjhb 210197439Sjhb if (strncmp(table->Signature, sig, ACPI_NAME_SIZE) != 0) { 211197439Sjhb table_unmap(table, sizeof(ACPI_TABLE_HEADER)); 212197439Sjhb return (0); 213197439Sjhb } 214197439Sjhb table_unmap(table, sizeof(ACPI_TABLE_HEADER)); 215197439Sjhb return (1); 216197439Sjhb} 217197439Sjhb 218197439Sjhb/* 219197439Sjhb * Try to map a table at a given physical address previously returned 220197439Sjhb * by acpi_find_table(). 221197439Sjhb */ 222197439Sjhbvoid * 223197439Sjhbacpi_map_table(vm_paddr_t pa, const char *sig) 224197439Sjhb{ 225197439Sjhb 226197439Sjhb return (map_table(pa, 0, sig)); 227197439Sjhb} 228197439Sjhb 229197439Sjhb/* Unmap a table previously mapped via acpi_map_table(). */ 230197439Sjhbvoid 231197439Sjhbacpi_unmap_table(void *table) 232197439Sjhb{ 233197439Sjhb ACPI_TABLE_HEADER *header; 234197439Sjhb 235197439Sjhb header = (ACPI_TABLE_HEADER *)table; 236197439Sjhb table_unmap(table, header->Length); 237197439Sjhb} 238197439Sjhb 239197439Sjhb/* 240197439Sjhb * Return the physical address of the requested table or zero if one 241197439Sjhb * is not found. 242197439Sjhb */ 243197439Sjhbvm_paddr_t 244197439Sjhbacpi_find_table(const char *sig) 245197439Sjhb{ 246197439Sjhb ACPI_PHYSICAL_ADDRESS rsdp_ptr; 247197439Sjhb ACPI_TABLE_RSDP *rsdp; 248197439Sjhb ACPI_TABLE_RSDT *rsdt; 249197439Sjhb ACPI_TABLE_XSDT *xsdt; 250197439Sjhb ACPI_TABLE_HEADER *table; 251197439Sjhb vm_paddr_t addr; 252197439Sjhb int i, count; 253197439Sjhb 254197439Sjhb if (resource_disabled("acpi", 0)) 255197439Sjhb return (0); 256197439Sjhb 257197439Sjhb /* 258197439Sjhb * Map in the RSDP. Since ACPI uses AcpiOsMapMemory() which in turn 259197439Sjhb * calls pmap_mapbios() to find the RSDP, we assume that we can use 260197439Sjhb * pmap_mapbios() to map the RSDP. 261197439Sjhb */ 262197439Sjhb if ((rsdp_ptr = AcpiOsGetRootPointer()) == 0) 263197439Sjhb return (0); 264197439Sjhb rsdp = pmap_mapbios(rsdp_ptr, sizeof(ACPI_TABLE_RSDP)); 265197439Sjhb if (rsdp == NULL) { 266197439Sjhb if (bootverbose) 267197439Sjhb printf("ACPI: Failed to map RSDP\n"); 268197439Sjhb return (0); 269197439Sjhb } 270197439Sjhb 271197439Sjhb /* 272197439Sjhb * For ACPI >= 2.0, use the XSDT if it is available. 273197439Sjhb * Otherwise, use the RSDT. We map the XSDT or RSDT at page 2 274197439Sjhb * in the crashdump area. Pages 0 and 1 are used to map in the 275197439Sjhb * headers of candidate ACPI tables. 276197439Sjhb */ 277197439Sjhb addr = 0; 278197439Sjhb if (rsdp->Revision >= 2 && rsdp->XsdtPhysicalAddress != 0) { 279197439Sjhb /* 280197439Sjhb * AcpiOsGetRootPointer only verifies the checksum for 281197439Sjhb * the version 1.0 portion of the RSDP. Version 2.0 has 282197439Sjhb * an additional checksum that we verify first. 283197439Sjhb */ 284197439Sjhb if (AcpiTbChecksum((UINT8 *)rsdp, ACPI_RSDP_XCHECKSUM_LENGTH)) { 285197439Sjhb if (bootverbose) 286197439Sjhb printf("ACPI: RSDP failed extended checksum\n"); 287197439Sjhb return (0); 288197439Sjhb } 289197439Sjhb xsdt = map_table(rsdp->XsdtPhysicalAddress, 2, ACPI_SIG_XSDT); 290197439Sjhb if (xsdt == NULL) { 291197439Sjhb if (bootverbose) 292197439Sjhb printf("ACPI: Failed to map XSDT\n"); 293197439Sjhb return (0); 294197439Sjhb } 295197439Sjhb count = (xsdt->Header.Length - sizeof(ACPI_TABLE_HEADER)) / 296197439Sjhb sizeof(UINT64); 297197439Sjhb for (i = 0; i < count; i++) 298197439Sjhb if (probe_table(xsdt->TableOffsetEntry[i], sig)) { 299197439Sjhb addr = xsdt->TableOffsetEntry[i]; 300197439Sjhb break; 301197439Sjhb } 302197439Sjhb acpi_unmap_table(xsdt); 303197439Sjhb } else { 304197439Sjhb rsdt = map_table(rsdp->RsdtPhysicalAddress, 2, ACPI_SIG_RSDT); 305197439Sjhb if (rsdt == NULL) { 306197439Sjhb if (bootverbose) 307197439Sjhb printf("ACPI: Failed to map RSDT\n"); 308197439Sjhb return (0); 309197439Sjhb } 310197439Sjhb count = (rsdt->Header.Length - sizeof(ACPI_TABLE_HEADER)) / 311197439Sjhb sizeof(UINT32); 312197439Sjhb for (i = 0; i < count; i++) 313197439Sjhb if (probe_table(rsdt->TableOffsetEntry[i], sig)) { 314197439Sjhb addr = rsdt->TableOffsetEntry[i]; 315197439Sjhb break; 316197439Sjhb } 317197439Sjhb acpi_unmap_table(rsdt); 318197439Sjhb } 319197439Sjhb pmap_unmapbios((vm_offset_t)rsdp, sizeof(ACPI_TABLE_RSDP)); 320197439Sjhb if (addr == 0) { 321197439Sjhb if (bootverbose) 322197439Sjhb printf("ACPI: No %s table found\n", sig); 323197439Sjhb return (0); 324197439Sjhb } 325197439Sjhb if (bootverbose) 326197439Sjhb printf("%s: Found table at 0x%jx\n", sig, (uintmax_t)addr); 327197439Sjhb 328197439Sjhb /* 329197439Sjhb * Verify that we can map the full table and that its checksum is 330197439Sjhb * correct, etc. 331197439Sjhb */ 332197439Sjhb table = map_table(addr, 0, sig); 333197439Sjhb if (table == NULL) 334197439Sjhb return (0); 335197439Sjhb acpi_unmap_table(table); 336197439Sjhb 337197439Sjhb return (addr); 338197439Sjhb} 339197439Sjhb 340197439Sjhb/* 341177157Sjhb * ACPI nexus(4) driver. 342177157Sjhb */ 343177157Sjhbstatic int 344177157Sjhbnexus_acpi_probe(device_t dev) 345177157Sjhb{ 346177157Sjhb int error; 347177157Sjhb 348177157Sjhb error = acpi_identify(); 349177157Sjhb if (error) 350177157Sjhb return (error); 351177157Sjhb 352177157Sjhb return (BUS_PROBE_DEFAULT); 353177157Sjhb} 354177157Sjhb 355177157Sjhbstatic int 356177157Sjhbnexus_acpi_attach(device_t dev) 357177157Sjhb{ 358197863Sjkim device_t acpi_dev; 359197863Sjkim int error; 360177157Sjhb 361177157Sjhb nexus_init_resources(); 362177157Sjhb bus_generic_probe(dev); 363197863Sjkim acpi_dev = BUS_ADD_CHILD(dev, 10, "acpi", 0); 364197863Sjkim if (acpi_dev == NULL) 365177157Sjhb panic("failed to add acpi0 device"); 366177157Sjhb 367197863Sjkim error = bus_generic_attach(dev); 368197863Sjkim if (error == 0) 369197863Sjkim acpi_install_wakeup_handler(device_get_softc(acpi_dev)); 370197863Sjkim 371197863Sjkim return (error); 372177157Sjhb} 373177157Sjhb 374177157Sjhbstatic device_method_t nexus_acpi_methods[] = { 375177157Sjhb /* Device interface */ 376177157Sjhb DEVMETHOD(device_probe, nexus_acpi_probe), 377177157Sjhb DEVMETHOD(device_attach, nexus_acpi_attach), 378177157Sjhb 379177157Sjhb { 0, 0 } 380177157Sjhb}; 381177157Sjhb 382177157SjhbDEFINE_CLASS_1(nexus, nexus_acpi_driver, nexus_acpi_methods, 1, nexus_driver); 383177157Sjhbstatic devclass_t nexus_devclass; 384177157Sjhb 385177157SjhbDRIVER_MODULE(nexus_acpi, root, nexus_acpi_driver, nexus_devclass, 0, 0); 386