/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * ACPI CA OSL for Solaris x86 */ #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #include #include #include extern int (*psm_translate_irq)(dev_info_t *, int); #define MAX_DAT_FILE_SIZE (64*1024) #define D2A_INITLEN 20 static int d2a_len = 0; static int d2a_valid = 0; static d2a *d2a_table; static int acpi_has_broken_bbn = -1; /* local functions */ static int CompressEisaID(char *np); static void create_d2a_map(void); static void create_d2a_subtree(dev_info_t *dip, ACPI_HANDLE acpiobj, int bus); static void new_d2a_entry(dev_info_t *dip, ACPI_HANDLE acpiobj, int bus, int dev, int func); static int acpica_query_bbn_problem(void); static int acpica_find_pcibus(int busno, ACPI_HANDLE *rh); static int acpica_eval_hid(ACPI_HANDLE dev, char *method, int *rint); int acpica_find_pciobj(dev_info_t *dip, ACPI_HANDLE *rh); static int acpica_find_pcid2a(ACPI_HANDLE, d2a **); int acpica_eval_int(ACPI_HANDLE dev, char *method, int *rint); /* * Event queue vars */ int acpica_eventq_thread_count = 1; int acpica_eventq_init = 0; ddi_taskq_t *osl_eventq[OSL_EC_BURST_HANDLER+1]; /* * Note, if you change this path, you need to update * /boot/grub/filelist.ramdisk and pkg SUNWckr/prototype_i386 */ static char *acpi_table_path = "/boot/acpi/tables/"; /* non-zero while create_d2a_map() is working */ static int creating_d2a_map = 0; /* set by acpi_poweroff() in PSMs */ int acpica_powering_off = 0; /* * */ static void discard_event_queues() { int i; /* * destroy event queues */ for (i = OSL_GLOBAL_LOCK_HANDLER; i <= OSL_EC_BURST_HANDLER; i++) { if (osl_eventq[i]) ddi_taskq_destroy(osl_eventq[i]); } } /* * */ static ACPI_STATUS init_event_queues() { char namebuf[32]; int i, error = 0; /* * Initialize event queues */ for (i = OSL_GLOBAL_LOCK_HANDLER; i <= OSL_EC_BURST_HANDLER; i++) { snprintf(namebuf, 32, "ACPI%d", i); osl_eventq[i] = ddi_taskq_create(NULL, namebuf, acpica_eventq_thread_count, TASKQ_DEFAULTPRI, 0); if (osl_eventq[i] == NULL) error++; } if (error != 0) { discard_event_queues(); #ifdef DEBUG cmn_err(CE_WARN, "!acpica: could not initialize event queues"); #endif return (AE_ERROR); } acpica_eventq_init = 1; return (AE_OK); } /* * */ ACPI_STATUS AcpiOsInitialize(void) { return (AE_OK); } /* * */ ACPI_STATUS AcpiOsTerminate(void) { discard_event_queues(); return (AE_OK); } ACPI_STATUS AcpiOsGetRootPointer(UINT32 Flags, ACPI_POINTER *Address) { uint_t acpi_root_tab; /* * For EFI firmware, the root pointer is defined in EFI systab. * The boot code process the table and put the physical address * in the acpi-root-tab property. */ acpi_root_tab = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(), 0, "acpi-root-tab", 0); if (acpi_root_tab != 0) { Address->PointerType = ACPI_PHYSICAL_POINTER; Address->Pointer.Physical = acpi_root_tab; return (AE_OK); } return (AcpiFindRootPointer(Flags, Address)); } /*ARGSUSED*/ ACPI_STATUS AcpiOsPredefinedOverride(const ACPI_PREDEFINED_NAMES *InitVal, ACPI_STRING *NewVal) { *NewVal = 0; return (AE_OK); } static void acpica_strncpy(char *dest, const char *src, int len) { /*LINTED*/ while ((*dest++ = *src++) && (--len > 0)) /* copy the string */; *dest = '\0'; } ACPI_STATUS AcpiOsTableOverride(ACPI_TABLE_HEADER *ExistingTable, ACPI_TABLE_HEADER **NewTable) { char signature[5]; char oemid[7]; char oemtableid[9]; struct _buf *file; char *buf1, *buf2; int count; char acpi_table_loc[128]; acpica_strncpy(signature, ExistingTable->Signature, 4); acpica_strncpy(oemid, ExistingTable->OemId, 6); acpica_strncpy(oemtableid, ExistingTable->OemTableId, 8); #ifdef DEBUG cmn_err(CE_NOTE, "!acpica: table [%s] v%d OEM ID [%s]" " OEM TABLE ID [%s] OEM rev %x", signature, ExistingTable->Revision, oemid, oemtableid, ExistingTable->OemRevision); #endif /* File name format is "signature_oemid_oemtableid.dat" */ (void) strcpy(acpi_table_loc, acpi_table_path); (void) strcat(acpi_table_loc, signature); /* for example, DSDT */ (void) strcat(acpi_table_loc, "_"); (void) strcat(acpi_table_loc, oemid); /* for example, IntelR */ (void) strcat(acpi_table_loc, "_"); (void) strcat(acpi_table_loc, oemtableid); /* for example, AWRDACPI */ (void) strcat(acpi_table_loc, ".dat"); file = kobj_open_file(acpi_table_loc); if (file == (struct _buf *)-1) { *NewTable = 0; return (AE_OK); } else { buf1 = (char *)kmem_alloc(MAX_DAT_FILE_SIZE, KM_SLEEP); count = kobj_read_file(file, buf1, MAX_DAT_FILE_SIZE-1, 0); if (count >= MAX_DAT_FILE_SIZE) { cmn_err(CE_WARN, "!acpica: table %s file size too big", acpi_table_loc); *NewTable = 0; } else { buf2 = (char *)kmem_alloc(count, KM_SLEEP); (void) memcpy(buf2, buf1, count); *NewTable = (ACPI_TABLE_HEADER *)buf2; cmn_err(CE_NOTE, "!acpica: replacing table: %s", acpi_table_loc); } } kobj_close_file(file); kmem_free(buf1, MAX_DAT_FILE_SIZE); return (AE_OK); } /* * ACPI semaphore implementation */ typedef struct { kmutex_t mutex; kcondvar_t cv; uint32_t available; uint32_t initial; uint32_t maximum; } acpi_sema_t; /* * */ void acpi_sema_init(acpi_sema_t *sp, unsigned max, unsigned count) { mutex_init(&sp->mutex, NULL, MUTEX_DRIVER, NULL); cv_init(&sp->cv, NULL, CV_DRIVER, NULL); /* no need to enter mutex here at creation */ sp->available = count; sp->initial = count; sp->maximum = max; } /* * */ void acpi_sema_destroy(acpi_sema_t *sp) { cv_destroy(&sp->cv); mutex_destroy(&sp->mutex); } /* * */ ACPI_STATUS acpi_sema_p(acpi_sema_t *sp, unsigned count, uint16_t wait_time) { ACPI_STATUS rv = AE_OK; clock_t deadline; mutex_enter(&sp->mutex); if (sp->available >= count) { /* * Enough units available, no blocking */ sp->available -= count; mutex_exit(&sp->mutex); return (rv); } else if (wait_time == 0) { /* * Not enough units available and timeout * specifies no blocking */ rv = AE_TIME; mutex_exit(&sp->mutex); return (rv); } /* * Not enough units available and timeout specifies waiting */ if (wait_time != ACPI_WAIT_FOREVER) deadline = ddi_get_lbolt() + (clock_t)drv_usectohz(wait_time * 1000); do { if (wait_time == ACPI_WAIT_FOREVER) cv_wait(&sp->cv, &sp->mutex); else if (cv_timedwait(&sp->cv, &sp->mutex, deadline) < 0) { rv = AE_TIME; break; } } while (sp->available < count); /* if we dropped out of the wait with AE_OK, we got the units */ if (rv == AE_OK) sp->available -= count; mutex_exit(&sp->mutex); return (rv); } /* * */ void acpi_sema_v(acpi_sema_t *sp, unsigned count) { mutex_enter(&sp->mutex); sp->available += count; cv_broadcast(&sp->cv); mutex_exit(&sp->mutex); } ACPI_STATUS AcpiOsCreateSemaphore(UINT32 MaxUnits, UINT32 InitialUnits, ACPI_HANDLE *OutHandle) { acpi_sema_t *sp; if ((OutHandle == NULL) || (InitialUnits > MaxUnits)) return (AE_BAD_PARAMETER); sp = (acpi_sema_t *)kmem_alloc(sizeof (acpi_sema_t), KM_SLEEP); acpi_sema_init(sp, MaxUnits, InitialUnits); *OutHandle = (ACPI_HANDLE)sp; return (AE_OK); } ACPI_STATUS AcpiOsDeleteSemaphore(ACPI_HANDLE Handle) { if (Handle == NULL) return (AE_BAD_PARAMETER); acpi_sema_destroy((acpi_sema_t *)Handle); kmem_free((void *)Handle, sizeof (acpi_sema_t)); return (AE_OK); } ACPI_STATUS AcpiOsWaitSemaphore(ACPI_HANDLE Handle, UINT32 Units, UINT16 Timeout) { if ((Handle == NULL) || (Units < 1)) return (AE_BAD_PARAMETER); return (acpi_sema_p((acpi_sema_t *)Handle, Units, Timeout)); } ACPI_STATUS AcpiOsSignalSemaphore(ACPI_HANDLE Handle, UINT32 Units) { if ((Handle == NULL) || (Units < 1)) return (AE_BAD_PARAMETER); acpi_sema_v((acpi_sema_t *)Handle, Units); return (AE_OK); } ACPI_STATUS AcpiOsCreateLock(ACPI_HANDLE *OutHandle) { kmutex_t *mp; if (OutHandle == NULL) return (AE_BAD_PARAMETER); mp = (kmutex_t *)kmem_alloc(sizeof (kmutex_t), KM_SLEEP); mutex_init(mp, NULL, MUTEX_DRIVER, NULL); *OutHandle = (ACPI_HANDLE)mp; return (AE_OK); } void AcpiOsDeleteLock(ACPI_HANDLE Handle) { if (Handle == NULL) return; mutex_destroy((kmutex_t *)Handle); kmem_free((void *)Handle, sizeof (kmutex_t)); } ACPI_NATIVE_UINT AcpiOsAcquireLock(ACPI_HANDLE Handle) { if (Handle == NULL) return (AE_BAD_PARAMETER); mutex_enter((kmutex_t *)Handle); return (AE_OK); } void AcpiOsReleaseLock(ACPI_HANDLE Handle, ACPI_NATIVE_UINT Flags) { _NOTE(ARGUNUSED(Flags)) if (Handle == NULL) return; mutex_exit((kmutex_t *)Handle); } void * AcpiOsAllocate(ACPI_SIZE Size) { ACPI_SIZE *tmp_ptr; Size += sizeof (Size); tmp_ptr = (ACPI_SIZE *)kmem_zalloc(Size, KM_SLEEP); *tmp_ptr++ = Size; return (tmp_ptr); } void AcpiOsFree(void *Memory) { ACPI_SIZE size, *tmp_ptr; tmp_ptr = (ACPI_SIZE *)Memory; tmp_ptr -= 1; size = *tmp_ptr; kmem_free(tmp_ptr, size); } ACPI_STATUS AcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Size, void **LogicalAddress) { /* FUTUREWORK: test PhysicalAddress for > 32 bits */ *LogicalAddress = psm_map_new((paddr_t)PhysicalAddress, (size_t)Size, PSM_PROT_WRITE | PSM_PROT_READ); return (*LogicalAddress == NULL ? AE_NO_MEMORY : AE_OK); } void AcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Size) { psm_unmap((caddr_t)LogicalAddress, (size_t)Size); } /*ARGSUSED*/ ACPI_STATUS AcpiOsGetPhysicalAddress(void *LogicalAddress, ACPI_PHYSICAL_ADDRESS *PhysicalAddress) { /* UNIMPLEMENTED: not invoked by ACPI CA code */ return (AE_NOT_IMPLEMENTED); } ACPI_OSD_HANDLER acpi_isr; void *acpi_isr_context; uint_t acpi_wrapper_isr(char *arg) { _NOTE(ARGUNUSED(arg)) int status; status = (*acpi_isr)(acpi_isr_context); if (status == ACPI_INTERRUPT_HANDLED) { return (DDI_INTR_CLAIMED); } else { return (DDI_INTR_UNCLAIMED); } } static int acpi_intr_hooked = 0; ACPI_STATUS AcpiOsInstallInterruptHandler(UINT32 InterruptNumber, ACPI_OSD_HANDLER ServiceRoutine, void *Context) { _NOTE(ARGUNUSED(InterruptNumber)) int retval; int sci_vect; iflag_t sci_flags; acpi_isr = ServiceRoutine; acpi_isr_context = Context; /* * Get SCI (adjusted for PIC/APIC mode if necessary) */ if (acpica_get_sci(&sci_vect, &sci_flags) != AE_OK) { return (AE_ERROR); } #ifdef DEBUG cmn_err(CE_NOTE, "!acpica: attaching SCI %d", sci_vect); #endif retval = add_avintr(NULL, SCI_IPL, (avfunc)acpi_wrapper_isr, "ACPI SCI", sci_vect, NULL, NULL, NULL, NULL); if (retval) { acpi_intr_hooked = 1; return (AE_OK); } else return (AE_BAD_PARAMETER); } ACPI_STATUS AcpiOsRemoveInterruptHandler(UINT32 InterruptNumber, ACPI_OSD_HANDLER ServiceRoutine) { _NOTE(ARGUNUSED(ServiceRoutine)) #ifdef DEBUG cmn_err(CE_NOTE, "!acpica: detaching SCI %d", InterruptNumber); #endif if (acpi_intr_hooked) { rem_avintr(NULL, LOCK_LEVEL - 1, (avfunc)acpi_wrapper_isr, InterruptNumber); acpi_intr_hooked = 0; } return (AE_OK); } ACPI_THREAD_ID AcpiOsGetThreadId(void) { /* * ACPI CA regards thread ID as an error, but it's valid * on Solaris during kernel initialization. Thus, 1 is added * to the kernel thread ID to avoid returning 0 */ return (ddi_get_kt_did() + 1); } /* * */ ACPI_STATUS AcpiOsExecute(ACPI_EXECUTE_TYPE Type, ACPI_OSD_EXEC_CALLBACK Function, void *Context) { if (!acpica_eventq_init) { /* * Create taskqs for event handling */ if (init_event_queues() != AE_OK) return (AE_ERROR); } if (ddi_taskq_dispatch(osl_eventq[Type], Function, Context, DDI_NOSLEEP) == DDI_FAILURE) { #ifdef DEBUG cmn_err(CE_WARN, "!acpica: unable to dispatch event"); #endif return (AE_ERROR); } return (AE_OK); } void AcpiOsSleep(ACPI_INTEGER Milliseconds) { /* * During kernel startup, before the first * tick interrupt has taken place, we can't call * delay; very late in kernel shutdown, clock interrupts * are blocked, so delay doesn't work then either. * So we busy wait if lbolt == 0 (kernel startup) * or if psm_shutdown() has set acpi_powering_off to * a non-zero value. */ if ((ddi_get_lbolt() == 0) || acpica_powering_off) drv_usecwait(Milliseconds * 1000); else delay(drv_usectohz(Milliseconds * 1000)); } void AcpiOsStall(UINT32 Microseconds) { drv_usecwait(Microseconds); } /* * Implementation of "Windows 2001" compatible I/O permission map * */ #define OSL_IO_NONE (0) #define OSL_IO_READ (1<<0) #define OSL_IO_WRITE (1<<1) #define OSL_IO_RW (OSL_IO_READ | OSL_IO_WRITE) #define OSL_IO_TERM (1<<2) #define OSL_IO_DEFAULT OSL_IO_RW static struct io_perm { ACPI_IO_ADDRESS low; ACPI_IO_ADDRESS high; uint8_t perm; } osl_io_perm[] = { { 0xcf8, 0xd00, OSL_IO_NONE | OSL_IO_TERM } }; /* * */ static struct io_perm * osl_io_find_perm(ACPI_IO_ADDRESS addr) { struct io_perm *p; p = osl_io_perm; while (p != NULL) { if ((p->low <= addr) && (addr <= p->high)) break; p = (p->perm & OSL_IO_TERM) ? NULL : p+1; } return (p); } /* * */ ACPI_STATUS AcpiOsReadPort(ACPI_IO_ADDRESS Address, UINT32 *Value, UINT32 Width) { struct io_perm *p; /* verify permission */ p = osl_io_find_perm(Address); if (p && (p->perm & OSL_IO_READ) == 0) { cmn_err(CE_WARN, "!AcpiOsReadPort: %lx %u not permitted", (long)Address, Width); *Value = 0xffffffff; return (AE_ERROR); } switch (Width) { case 8: *Value = inb(Address); break; case 16: *Value = inw(Address); break; case 32: *Value = inl(Address); break; default: cmn_err(CE_WARN, "!AcpiOsReadPort: %lx %u failed", (long)Address, Width); return (AE_BAD_PARAMETER); } return (AE_OK); } ACPI_STATUS AcpiOsWritePort(ACPI_IO_ADDRESS Address, UINT32 Value, UINT32 Width) { struct io_perm *p; /* verify permission */ p = osl_io_find_perm(Address); if (p && (p->perm & OSL_IO_WRITE) == 0) { cmn_err(CE_WARN, "!AcpiOsWritePort: %lx %u not permitted", (long)Address, Width); return (AE_ERROR); } switch (Width) { case 8: outb(Address, Value); break; case 16: outw(Address, Value); break; case 32: outl(Address, Value); break; default: cmn_err(CE_WARN, "!AcpiOsWritePort: %lx %u failed", (long)Address, Width); return (AE_BAD_PARAMETER); } return (AE_OK); } /* * */ #define OSL_RW(ptr, val, type, rw) \ { if (rw) *((type *)(ptr)) = *((type *) val); \ else *((type *) val) = *((type *)(ptr)); } static void osl_rw_memory(ACPI_PHYSICAL_ADDRESS Address, UINT32 *Value, UINT32 Width, int write) { size_t maplen = Width / 8; caddr_t ptr; ptr = psm_map_new((paddr_t)Address, maplen, PSM_PROT_WRITE | PSM_PROT_READ); switch (maplen) { case 1: OSL_RW(ptr, Value, uint8_t, write); break; case 2: OSL_RW(ptr, Value, uint16_t, write); break; case 4: OSL_RW(ptr, Value, uint32_t, write); break; default: cmn_err(CE_WARN, "!osl_rw_memory: invalid size %d", Width); break; } psm_unmap(ptr, maplen); } ACPI_STATUS AcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 *Value, UINT32 Width) { osl_rw_memory(Address, Value, Width, 0); return (AE_OK); } ACPI_STATUS AcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 Value, UINT32 Width) { osl_rw_memory(Address, &Value, Width, 1); return (AE_OK); } ACPI_STATUS AcpiOsReadPciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, void *Value, UINT32 Width) { switch (Width) { case 8: *((UINT64 *)Value) = (UINT64)(*pci_getb_func) (PciId->Bus, PciId->Device, PciId->Function, Register); break; case 16: *((UINT64 *)Value) = (UINT64)(*pci_getw_func) (PciId->Bus, PciId->Device, PciId->Function, Register); break; case 32: *((UINT64 *)Value) = (UINT64)(*pci_getl_func) (PciId->Bus, PciId->Device, PciId->Function, Register); break; case 64: default: cmn_err(CE_WARN, "!AcpiOsReadPciConfiguration: %x %u failed", Register, Width); return (AE_BAD_PARAMETER); } return (AE_OK); } /* * */ int acpica_write_pci_config_ok = 1; ACPI_STATUS AcpiOsWritePciConfiguration(ACPI_PCI_ID *PciId, UINT32 Register, ACPI_INTEGER Value, UINT32 Width) { if (!acpica_write_pci_config_ok) { cmn_err(CE_NOTE, "!write to PCI cfg %x/%x/%x %x" " %lx %d not permitted", PciId->Bus, PciId->Device, PciId->Function, Register, (long)Value, Width); return (AE_OK); } switch (Width) { case 8: (*pci_putb_func)(PciId->Bus, PciId->Device, PciId->Function, Register, (uint8_t)Value); break; case 16: (*pci_putw_func)(PciId->Bus, PciId->Device, PciId->Function, Register, (uint16_t)Value); break; case 32: (*pci_putl_func)(PciId->Bus, PciId->Device, PciId->Function, Register, (uint32_t)Value); break; case 64: default: cmn_err(CE_WARN, "!AcpiOsWritePciConfiguration: %x %u failed", Register, Width); return (AE_BAD_PARAMETER); } return (AE_OK); } /* * Called with ACPI_HANDLEs for both a PCI Config Space * OpRegion and (what ACPI CA thinks is) the PCI device * to which this ConfigSpace OpRegion belongs. Since * ACPI CA depends on a valid _BBN object being present * and this is not always true (one old x86 had broken _BBN), * we go ahead and get the correct PCI bus number using the * devinfo mapping (which compensates for broken _BBN). * * Default values for bus, segment, device and function are * all 0 when ACPI CA can't figure them out. * * Some BIOSes implement _BBN() by reading PCI config space * one bus #0 - which means that we'll recurse when we attempt * to create the devinfo-to-ACPI map. If Derive is called during * create_d2a_map or with bus #0, we don't translate the bus # and * return. */ void AcpiOsDerivePciId(ACPI_HANDLE rhandle, ACPI_HANDLE chandle, ACPI_PCI_ID **PciId) { ACPI_HANDLE handle; d2a *d2ap; int devfn; /* * See above - avoid recursing during create_d2a_map, * and never translate bus# 0. */ if ((creating_d2a_map) || ((*PciId)->Bus == 0)) return; /* * We start with the parent node of the OpRegion * and ascend, looking for a matching dip2acpi * node; once located, we use the bus from the d2a * node and the device/function return from the _ADR * method on the ACPI node. * If we encounter any kind of failure, we just * return, possibly after updating the bus value * This is probably always better than nothing. */ if (AcpiGetParent(chandle, &handle) != AE_OK) return; while (handle != rhandle) { if (acpica_find_pcid2a(handle, &d2ap) == AE_OK) { (*PciId)->Bus = d2ap->bus; if (acpica_eval_int(handle, "_ADR", &devfn) == AE_OK) { (*PciId)->Device = (devfn >> 16) & 0xFFFF; (*PciId)->Function = devfn & 0xFFFF; } break; } if (AcpiGetParent(handle, &handle) != AE_OK) break; } } /*ARGSUSED*/ BOOLEAN AcpiOsReadable(void *Pointer, ACPI_SIZE Length) { /* Always says yes; all mapped memory assumed readable */ return (1); } /*ARGSUSED*/ BOOLEAN AcpiOsWritable(void *Pointer, ACPI_SIZE Length) { /* Always says yes; all mapped memory assumed writable */ return (1); } UINT64 AcpiOsGetTimer(void) { /* gethrtime() returns 1nS resolution; convert to 100nS granules */ return ((gethrtime() + 50) / 100); } /*ARGSUSED*/ ACPI_STATUS AcpiOsValidateInterface(char *interface) { return (AE_SUPPORT); } /*ARGSUSED*/ ACPI_STATUS AcpiOsValidateAddress(UINT8 spaceid, ACPI_PHYSICAL_ADDRESS addr, ACPI_SIZE length) { return (AE_OK); } ACPI_STATUS AcpiOsSignal(UINT32 Function, void *Info) { _NOTE(ARGUNUSED(Function, Info)) /* FUTUREWORK: debugger support */ cmn_err(CE_NOTE, "!OsSignal unimplemented"); return (AE_OK); } void ACPI_INTERNAL_VAR_XFACE AcpiOsPrintf(const char *Format, ...) { va_list ap; va_start(ap, Format); AcpiOsVprintf(Format, ap); va_end(ap); } /* * When != 0, sends output to console * Patchable with kmdb or /etc/system. */ int acpica_console_out = 0; #define ACPICA_OUTBUF_LEN 160 char acpica_outbuf[ACPICA_OUTBUF_LEN]; int acpica_outbuf_offset; /* * */ static void acpica_pr_buf(char *buf, int buflen) { char c, *bufp, *outp; int out_remaining; /* * copy the supplied buffer into the output buffer * when we hit a '\n' or overflow the output buffer, * output and reset the output buffer */ bufp = buf; outp = acpica_outbuf + acpica_outbuf_offset; out_remaining = ACPICA_OUTBUF_LEN - acpica_outbuf_offset - 1; while (c = *bufp++) { *outp++ = c; if (c == '\n' || --out_remaining == 0) { *outp = '\0'; if (acpica_console_out) printf(acpica_outbuf); else (void) strlog(0, 0, 0, SL_CONSOLE | SL_NOTE | SL_LOGONLY, acpica_outbuf); acpica_outbuf_offset = 0; outp = acpica_outbuf; out_remaining = ACPICA_OUTBUF_LEN - 1; } } acpica_outbuf_offset = outp - acpica_outbuf; kmem_free(buf, buflen); } void AcpiOsVprintf(const char *Format, va_list Args) { va_list save; int buflen; char *buf; /* * Try to be nice and emit the message via strlog(). * Unfortunately, vstrlog() doesn't define the format * string as const char, so we allocate a local buffer * use vsnprintf(). * * If we fail to allocate a string buffer, we resort * to printf(). */ va_copy(save, Args); buflen = vsnprintf(NULL, 0, Format, save) + 1; buf = kmem_alloc(buflen, KM_NOSLEEP); if (buf == NULL) { vprintf(Format, Args); return; } (void) vsnprintf(buf, buflen, Format, Args); acpica_pr_buf(buf, buflen); } void AcpiOsRedirectOutput(void *Destination) { _NOTE(ARGUNUSED(Destination)) /* FUTUREWORK: debugger support */ #ifdef DEBUG cmn_err(CE_WARN, "!acpica: AcpiOsRedirectOutput called"); #endif } UINT32 AcpiOsGetLine(char *Buffer) { _NOTE(ARGUNUSED(Buffer)) /* FUTUREWORK: debugger support */ return (0); } /* * Device tree binding */ static int acpica_find_pcibus(int busno, ACPI_HANDLE *rh) { ACPI_HANDLE sbobj, busobj; int hid, bbn; /* initialize static flag by querying ACPI namespace for bug */ if (acpi_has_broken_bbn == -1) acpi_has_broken_bbn = acpica_query_bbn_problem(); busobj = NULL; AcpiGetHandle(NULL, "\\_SB", &sbobj); while (AcpiGetNextObject(ACPI_TYPE_DEVICE, sbobj, busobj, &busobj) == AE_OK) { if (acpica_eval_hid(busobj, "_HID", &hid) == AE_OK && (hid == HID_PCI_BUS || hid == HID_PCI_EXPRESS_BUS)) { if (acpi_has_broken_bbn) { ACPI_BUFFER rb; rb.Pointer = NULL; rb.Length = ACPI_ALLOCATE_BUFFER; /* Decree _BBN == n from PCI */ if (AcpiGetName(busobj, ACPI_SINGLE_NAME, &rb) != AE_OK) { return (AE_ERROR); } bbn = ((char *)rb.Pointer)[3] - '0'; AcpiOsFree(rb.Pointer); if (bbn == busno || busno == 0) { *rh = busobj; return (AE_OK); } } else { if (acpica_eval_int(busobj, "_BBN", &bbn) == AE_OK) { if (bbn == busno) { *rh = busobj; return (AE_OK); } } else if (busno == 0) { *rh = busobj; return (AE_OK); } } } } return (AE_ERROR); } /* * Look for ACPI problem where _BBN is zero for multiple PCI buses * This is a clear ACPI bug, but we have a workaround in acpica_find_pcibus() * below if it exists. */ static int acpica_query_bbn_problem(void) { ACPI_HANDLE sbobj, busobj; int hid, bbn; int zerobbncnt; busobj = NULL; zerobbncnt = 0; AcpiGetHandle(NULL, "\\_SB", &sbobj); while (AcpiGetNextObject(ACPI_TYPE_DEVICE, sbobj, busobj, &busobj) == AE_OK) { if ((acpica_eval_hid(busobj, "_HID", &hid) == AE_OK) && (hid == HID_PCI_BUS || hid == HID_PCI_EXPRESS_BUS) && (acpica_eval_int(busobj, "_BBN", &bbn) == AE_OK)) { if (bbn == 0) { /* * If we find more than one bus with a 0 _BBN * we have the problem that BigBear's BIOS shows */ if (++zerobbncnt > 1) return (1); } } } return (0); } static const char hextab[] = "0123456789ABCDEF"; static int hexdig(int c) { /* * Get hex digit: * * Returns the 4-bit hex digit named by the input character. Returns * zero if the input character is not valid hex! */ int x = ((c < 'a') || (c > 'z')) ? c : (c - ' '); int j = sizeof (hextab); while (--j && (x != hextab[j])); return (j); } static int CompressEisaID(char *np) { /* * Compress an EISA device name: * * This routine converts a 7-byte ASCII device name into the 4-byte * compressed form used by EISA (50 bytes of ROM to save 1 byte of * NV-RAM!) */ union { char octets[4]; int retval; } myu; myu.octets[0] = ((np[0] & 0x1F) << 2) + ((np[1] >> 3) & 0x03); myu.octets[1] = ((np[1] & 0x07) << 5) + (np[2] & 0x1F); myu.octets[2] = (hexdig(np[3]) << 4) + hexdig(np[4]); myu.octets[3] = (hexdig(np[5]) << 4) + hexdig(np[6]); return (myu.retval); } int acpica_eval_int(ACPI_HANDLE dev, char *method, int *rint) { ACPI_STATUS status; ACPI_BUFFER rb; ACPI_OBJECT ro; rb.Pointer = &ro; rb.Length = sizeof (ro); if ((status = AcpiEvaluateObjectTyped(dev, method, NULL, &rb, ACPI_TYPE_INTEGER)) == AE_OK) *rint = ro.Integer.Value; return (status); } static int acpica_eval_hid(ACPI_HANDLE dev, char *method, int *rint) { ACPI_BUFFER rb; ACPI_OBJECT *rv; rb.Pointer = NULL; rb.Length = ACPI_ALLOCATE_BUFFER; if (AcpiEvaluateObject(dev, method, NULL, &rb) == AE_OK) { rv = rb.Pointer; if (rv->Type == ACPI_TYPE_INTEGER) { *rint = rv->Integer.Value; AcpiOsFree(rv); return (AE_OK); } else if (rv->Type == ACPI_TYPE_STRING) { char *stringData; /* Convert the string into an EISA ID */ if (rv->String.Pointer == NULL) { AcpiOsFree(rv); return (AE_ERROR); } stringData = rv->String.Pointer; /* * If the string is an EisaID, it must be 7 * characters; if it's an ACPI ID, it will be 8 * (and we don't care about ACPI ids here). */ if (strlen(stringData) != 7) { AcpiOsFree(rv); return (AE_ERROR); } *rint = CompressEisaID(stringData); AcpiOsFree(rv); return (AE_OK); } else AcpiOsFree(rv); } return (AE_ERROR); } /* * Return the d2a node matching this ACPI_HANDLE, if one exists */ int acpica_find_pcid2a(ACPI_HANDLE rh, d2a **dp) { d2a *d2ap; int i; if (d2a_len == 0) create_d2a_map(); for (d2ap = d2a_table, i = 0; i < d2a_valid; d2ap++, i++) if (d2ap->acpiobj == rh) { *dp = d2ap; return (AE_OK); } return (AE_ERROR); } /* * Return the ACPI device node matching this dev_info node, if it * exists in the ACPI tree. */ int acpica_find_pciobj(dev_info_t *dip, ACPI_HANDLE *rh) { d2a *d2ap; int i; if (d2a_len == 0) create_d2a_map(); for (d2ap = d2a_table, i = 0; i < d2a_valid; d2ap++, i++) if (d2ap->dip == dip) { *rh = d2ap->acpiobj; return (AE_OK); } return (AE_ERROR); } /* * Create a table mapping PCI dips to ACPI objects */ static void new_d2a_entry(dev_info_t *dip, ACPI_HANDLE acpiobj, int bus, int dev, int func) { int newsize; d2a *new_arr, *ep; if (d2a_valid >= d2a_len) { /* initially, or re-, allocate array */ newsize = (d2a_len ? d2a_len * 2 : D2A_INITLEN); new_arr = kmem_zalloc(newsize * sizeof (d2a), KM_SLEEP); if (d2a_len != 0) { /* realloc: copy data, free old */ bcopy(d2a_table, new_arr, d2a_len * sizeof (d2a)); kmem_free(d2a_table, d2a_len * sizeof (d2a)); } d2a_len = newsize; d2a_table = new_arr; } ep = &d2a_table[d2a_valid++]; ep->bus = (unsigned char)bus; ep->dev = (unsigned char)dev; ep->func = (unsigned char)func; ep->dip = dip; ep->acpiobj = acpiobj; #ifdef D2ADEBUG { ACPI_BUFFER rb; char pathname[60]; ddi_pathname(dip, pathname); rb.Pointer = NULL; rb.Length = ACPI_ALLOCATE_BUFFER; if (AcpiGetName(acpiobj, ACPI_FULL_PATHNAME, &rb) == AE_OK) { cmn_err(CE_NOTE, "d2a entry: %s %s %d/0x%x/%d", pathname, (char *)rb.Pointer, bus, dev, func); AcpiOsFree(rb.Pointer); } } #endif } static void create_d2a_map(void) { dev_info_t *dip, *cdip; ACPI_HANDLE acpiobj; char *device_type_prop; int bus; static int map_error = 0; if (map_error) return; creating_d2a_map = 1; /* * Find all child-of-root PCI buses, and find their corresponding * ACPI child-of-root PCI nodes. For each one, add to the * d2a table. */ for (dip = ddi_get_child(ddi_root_node()); dip != NULL; dip = ddi_get_next_sibling(dip)) { /* prune non-PCI nodes */ if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, 0, "device_type", &device_type_prop) != DDI_PROP_SUCCESS) continue; if ((strcmp("pci", device_type_prop) != 0) && (strcmp("pciex", device_type_prop) != 0)) { ddi_prop_free(device_type_prop); continue; } ddi_prop_free(device_type_prop); /* * To get bus number of dip, get first child and get its * bus number. If NULL, just continue, because we don't * care about bus nodes with no children anyway. */ if ((cdip = ddi_get_child(dip)) == NULL) continue; if (acpica_get_bdf(cdip, &bus, NULL, NULL) < 0) { #ifdef D2ADEBUG cmn_err(CE_WARN, "Can't get bus number of PCI child?"); #endif map_error = 1; creating_d2a_map = 0; return; } if (acpica_find_pcibus(bus, &acpiobj) == AE_ERROR) { #ifdef D2ADEBUG cmn_err(CE_WARN, "No ACPI bus obj for bus %d?\n", bus); #endif map_error = 1; continue; } /* * map this node, with illegal device and fn numbers * (since, as a PCI root node, it exists on the system * bus */ new_d2a_entry(dip, acpiobj, bus, 32, 8); /* call recursive function to enumerate subtrees */ create_d2a_subtree(dip, acpiobj, bus); } creating_d2a_map = 0; } /* * For all acpi child devices of acpiobj, find their matching * dip under "dip" argument. (matching means "matches dev/fn"). * bus is assumed to already be a match from caller, and is * used here only to record in the d2a entry. Recurse if necessary. */ static void create_d2a_subtree(dev_info_t *dip, ACPI_HANDLE acpiobj, int bus) { int acpi_devfn, hid; ACPI_HANDLE acld; dev_info_t *dcld; int dcld_b, dcld_d, dcld_f; int dev, func; acld = NULL; while (AcpiGetNextObject(ACPI_TYPE_DEVICE, acpiobj, acld, &acld) == AE_OK) { /* * Skip ACPI devices that are obviously not PCI, i.e., * that have a _HID that is *not* the PCI HID */ if (acpica_eval_hid(acld, "_HID", &hid) == AE_OK && hid != HID_PCI_BUS && hid != HID_PCI_EXPRESS_BUS) continue; /* get the dev/func we're looking for in the devinfo tree */ if (acpica_eval_int(acld, "_ADR", &acpi_devfn) != AE_OK) continue; dev = (acpi_devfn >> 16) & 0xFFFF; func = acpi_devfn & 0xFFFF; /* look through all the immediate children of dip */ for (dcld = ddi_get_child(dip); dcld != NULL; dcld = ddi_get_next_sibling(dcld)) { if (acpica_get_bdf(dcld, &dcld_b, &dcld_d, &dcld_f) < 0) continue; /* dev must match; function must match or wildcard */ if (dcld_d != dev || (func != 0xFFFF && func != dcld_f)) continue; bus = dcld_b; /* found a match, record it */ new_d2a_entry(dcld, acld, bus, dev, func); /* recurse from here to pick up child trees */ create_d2a_subtree(dcld, acld, bus); /* done finding a match, so break now */ break; } } } /* * Return bus/dev/fn for PCI dip (note: not the parent "pci" node). */ int acpica_get_bdf(dev_info_t *dip, int *bus, int *device, int *func) { pci_regspec_t *pci_rp; int len; if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, "reg", (int **)&pci_rp, (uint_t *)&len) != DDI_SUCCESS) return (-1); if (len < (sizeof (pci_regspec_t) / sizeof (int))) { ddi_prop_free(pci_rp); return (-1); } if (bus != NULL) *bus = (int)PCI_REG_BUS_G(pci_rp->pci_phys_hi); if (device != NULL) *device = (int)PCI_REG_DEV_G(pci_rp->pci_phys_hi); if (func != NULL) *func = (int)PCI_REG_FUNC_G(pci_rp->pci_phys_hi); ddi_prop_free(pci_rp); return (0); }