uppc.c revision 450d696485d078017a0c7d3eef7384ee79c9f467
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * CDDL HEADER START
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * The contents of this file are subject to the terms of the
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Common Development and Distribution License, Version 1.0 only
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * (the "License"). You may not use this file except in compliance
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * with the License.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * See the License for the specific language governing permissions
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * and limitations under the License.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * When distributing Covered Code, include this CDDL HEADER in each
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * If applicable, add the following below this CDDL HEADER, with the
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * fields enclosed by brackets "[]" replaced with your own identifying
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * information: Portions Copyright [yyyy] [name of copyright owner]
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * CDDL HEADER END
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Use is subject to license terms.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark#pragma ident "%Z%%M% %I% %E% SMI"
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * External References
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkextern int intr_clear(void);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Local Function Prototypes
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic void uppc_softinit(void);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_clkinit(int);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_addspl(int irqno, int ipl, int min_ipl, int max_ipl);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_delspl(int irqno, int ipl, int min_ipl, int max_ipl);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic processorid_t uppc_get_next_processorid(processorid_t cpu_id);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_probe(void);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_translate_irq(dev_info_t *dip, int irqno);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic void uppc_preshutdown(int cmd, int fcn);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_init_acpi(void);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic void uppc_setspl(int);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_intr_enter(int, int *);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic void uppc_intr_exit(int, int);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_acpi_irq_configure(acpi_psm_lnk_t *acpipsmlnkp, dev_info_t *dip,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Global Data
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkint uppc_use_acpi = 1; /* Use ACPI by default */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * For interrupt link devices, if uppc_unconditional_srs is set, an irq resource
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * will be assigned (via _SRS). If it is not set, use the current
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * irq setting (via _CRS), but only if that irq is in the set of possible
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * irqs (returned by _PRS) for the device.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * For interrupt link devices, if uppc_prefer_crs is set when we are
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * assigning an IRQ resource to a device, prefer the current IRQ setting
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * over other possible irq settings under same conditions.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark/* flag definitions for uppc_verbose */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark#define UPPC_VERBOSE_POWEROFF_PAUSE_FLAG 0x00000004
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (uppc_verbose & UPPC_VERBOSE_POWEROFF_FLAG) \
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkuchar_t uppc_reserved_irqlist[MAX_ISA_IRQ + 1];
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic uint16_t uppc_irq_shared_table[MAX_ISA_IRQ + 1];
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Contains SCI irqno from FADT after initialization
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Local Static Data
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkstatic int uppc_debug = 0;
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (int (*)(processorid_t))NULL, /* psm_disable_intr */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(processorid_t))NULL, /* psm_enable_intr */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(processorid_t))NULL, /* psm_set_idlecpu */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(processorid_t))NULL, /* psm_unset_idlecpu */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark uppc_get_next_processorid, /* psm_get_next_processorid */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(processorid_t, caddr_t))NULL, /* psm_cpu_start */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (int (*)(int, int))NULL, /* psm_get_ipivect */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(processorid_t, int))NULL, /* psm_send_ipi */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(int, char *))NULL, /* psm_notify_error */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(int msg))NULL, /* psm_notify_func */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(hrtime_t time))NULL, /* psm_timer_reprogram */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void (*)(void *arg))NULL, /* psm_post_cyclic_setup */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (int (*)(dev_info_t *, ddi_intr_handle_impl_t *,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Configuration Data
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * This is the loadable module wrapper.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark return (psm_mod_init(&uppc_hdlp, &uppc_info));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark return (psm_mod_fini(&uppc_hdlp, &uppc_info));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark return (psm_mod_info(&uppc_hdlp, &uppc_info, modinfop));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Autoconfiguration Routines
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark build_reserved_irqlist((uchar_t *)uppc_reserved_irqlist);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark for (i = 0; i <= MAX_ISA_IRQ; i++)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * initialize the ipl mask
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark /* enable slave lines on master */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark pp->c_iplmask[i+1] = (0xff & ~(1 << MASTERLINE));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark return (0); /* One shot mode not supported */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * program timer 0
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark outb(PITCTL_PORT, (PIT_C0|PIT_NDIVMODE|PIT_READMODE));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * If a valid SCI is present, manually addspl()
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * since we're not set-up early enough in boot
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * to do it "conventionally" (via add_avintr)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (void) uppc_addspl(uppc_sci, SCI_IPL, SCI_IPL, SCI_IPL);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkuppc_addspl(int irqno, int ipl, int min_ipl, int max_ipl)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark atomic_add_16(&uppc_irq_shared_table[irqno], 1);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * mask intr same or above ipl
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * level MAXIPL has all intr off as init. default
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark for (i = startidx; i < (MAXIPL << 1); i += 2) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * unmask intr below ipl
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkuppc_delspl(int irqno, int ipl, int min_ipl, int max_ipl)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * skip if we are not deleting the last handler
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * and the ipl is higher than minimum
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((max_ipl != PSM_INVALID_IPL) && (ipl >= min_ipl))
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark atomic_add_16(&uppc_irq_shared_table[irqno], -1);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * check any handlers left for this irqno
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * unmasks all levels below the lowest priority
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark for (; i >= 0; i -= 2) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * set mask to all levels
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkuppc_get_next_processorid(processorid_t cpu_id)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Process SCI configuration here; this may return
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * an error if acpi-user-options has specified
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * legacy mode (use ACPI without ACPI mode or SCI)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (acpica_get_sci(&sci, &sci_flags) != AE_OK)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Initialize sub-system - if error is returns, ACPI is not
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * uppc implies system is in PIC mode; set edge/level
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * via ELCR based on return value from get_sci; this
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * will default to level/low if no override present,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * as recommended by Intel ACPI CA team.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark ASSERT((sci_flags.intr_el == INTR_EL_LEVEL) ||
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark psm_set_elcr(sci, sci_flags.intr_el == INTR_EL_LEVEL);
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Remember SCI for later use
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (uppc_verbose & UPPC_VERBOSE_POWEROFF_FLAG)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (uppc_verbose & UPPC_VERBOSE_POWEROFF_PAUSE_FLAG)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark verboseflags |= PSM_VERBOSE_POWEROFF_PAUSE_FLAG;
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (acpi_psm_init(uppc_info.p_mach_idstring, verboseflags) ==
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_POWEROFF(("uppc_preshutdown(%d,%d);\n", cmd, fcn));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((cmd != A_SHUTDOWN) || (fcn != AD_POWEROFF)) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_POWEROFF(("uppc_preshutdown: ACPI enabled\n"));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_POWEROFF(("uppc_preshutdown: ACPI not enabled\n"));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_POWEROFF(("uppc_shutdown(%d,%d);\n", cmd, fcn));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((cmd != A_SHUTDOWN) || (fcn != AD_POWEROFF)) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkuppc_acpi_translate_pci_irq(dev_info_t *dip, int busid, int devid,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((status = acpi_get_irq_cache_ent(busid, devid, ipin, pci_irqp,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_IRQ((CE_CONT, "!uppc: Found irqno %d "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "from cache for device %s, instance #%d\n", *pci_irqp,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((status = acpi_translate_pci_irq(dip, ipin, pci_irqp,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark intr_flagp, &acpipsmlnk)) == ACPI_PSM_FAILURE) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark " acpi_translate_pci_irq failed for device %s, instance"
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark " #%d\n", ddi_get_name(dip), ddi_get_instance(dip)));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (status == ACPI_PSM_PARTIAL && acpipsmlnk.lnkobj != NULL) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark status = uppc_acpi_irq_configure(&acpipsmlnk, dip, pci_irqp,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark status = acpi_get_current_irq_resource(&acpipsmlnk,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark acpi_new_irq_cache_ent(busid, devid, ipin, *pci_irqp,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark psm_set_elcr(*pci_irqp, 1); /* set IRQ to PCI mode */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "new irq %d for device %s, instance #%d\n",
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark *pci_irqp, ddi_get_name(dip), ddi_get_instance(dip)));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Configures the irq for the interrupt link device identified by
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * acpipsmlnkp.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Gets the current and the list of possible irq settings for the
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * device. If uppc_unconditional_srs is not set, and the current
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * resource setting is in the list of possible irq settings,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * current irq resource setting is passed to the caller.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Otherwise, picks an irq number from the list of possible irq
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * settings, and sets the irq of the device to this value.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * If prefer_crs is set, among a set of irq numbers in the list that have
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * the least number of devices sharing the interrupt, we pick current irq
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * resource setting if it is a member of this set.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Passes the irq number in the value pointed to by pci_irqp, and
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * polarity and sensitivity in the structure pointed to by dipintrflagp
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * to the caller.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Note that if setting the irq resource failed, but successfuly obtained
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * the current irq resource settings, passes the current irq resources
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * and considers it a success.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * ACPI_PSM_SUCCESS on success.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * ACPI_PSM_FAILURE if an error occured during the configuration or
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * if a suitable irq was not found for this device, or if setting the
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * irq resource and obtaining the current resource fails.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmarkuppc_acpi_irq_configure(acpi_psm_lnk_t *acpipsmlnkp, dev_info_t *dip,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((acpi_get_possible_irq_resources(acpipsmlnkp, &irqlistp))
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_IRQ((CE_WARN, "!uppc: Unable to determine "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "or assign IRQ for device %s, instance #%d: The system was "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "unable to get the list of potential IRQs from ACPI.",
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((acpi_get_current_irq_resource(acpipsmlnkp, &cur_irq,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark dipintr_flagp) == ACPI_PSM_SUCCESS) && (!uppc_unconditional_srs) &&
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (acpi_irqlist_find_irq(irqlistp, cur_irq, NULL)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_IRQ((CE_WARN, "!uppc: Could not find the "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "current irq %d for device %s, instance #%d in ACPI's "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "list of possible irqs for this device. Picking one from "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark " the latter list.", cur_irq, ddi_get_name(dip),
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark for (foundnow = 0, i = 0; i < irqlistent->num_irqs; i++) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark (irqlistent->intr_flags.intr_el == INTR_EL_EDGE) ||
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((uppc_irq_shared_table[irq] < min_share) ||
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark /* If we found an IRQ in the inner loop, save the details */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (foundnow && ((chosen_irq != -1) || (share_irq != -1))) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Copy the acpi_prs_private_t and flags from this
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * irq list entry, since we found an irq from this
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark acpipsmlnkp->acpi_prs_prv = irqlistent->acpi_prs_prv;
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark /* Load the next entry in the irqlist */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_IRQ((CE_CONT, "!uppc: Could not find a "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "suitable irq from the list of possible irqs for device "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "%s, instance #%d in ACPI's list of possible\n",
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_IRQ((CE_CONT, "!uppc: Setting irq %d for device %s "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "instance #%d\n", irq, ddi_get_name(dip), ddi_get_instance(dip)));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if ((acpi_set_irq_resource(acpipsmlnkp, irq)) == ACPI_PSM_SUCCESS) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * setting irq was successful, check to make sure CRS
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * reflects that. If CRS does not agree with what we
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * set, return the irq that was set.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (acpi_get_current_irq_resource(acpipsmlnkp, &cur_irq,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "IRQ resource set (irqno %d) for device %s "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "instance #%d, differs from current "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "setting irqno %d",
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * return the irq that was set, and not what CRS reports,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * since CRS has been seen to be bogus on some systems
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_IRQ((CE_WARN, "!uppc: set resource irq %d "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "failed for device %s instance #%d",
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark irq, ddi_get_name(dip), ddi_get_instance(dip)));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_IRQ((CE_CONT, "!uppc: irqno = %d"
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (ddi_getlongprop_buf(DDI_DEV_T_NONE, ddi_get_parent(dip),
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark DDI_PROP_DONTPASS, "device_type", (caddr_t)dev_type,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "device %s instance %d no device_type\n", irqno,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark /* pci device */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (acpica_get_bdf(dip, &busid, &devid, NULL) != 0)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (pci_config_setup(dip, &cfg_handle) != DDI_SUCCESS)
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark ipin = pci_config_get8(cfg_handle, PCI_CONF_IPIN) - PCI_INTA;
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (uppc_acpi_translate_pci_irq(dip, busid, devid,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark ipin, &pci_irq, &intr_flag) == ACPI_PSM_SUCCESS) {
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark UPPC_VERBOSE_IRQ((CE_CONT, "!uppc: [ACPI] new irq "
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark "%d old irq %d device %s, instance %d\n", pci_irq,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark irqno, ddi_get_name(dip), ddi_get_instance(dip)));
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Make sure pci_irq is within range.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * Otherwise, fall through and return irqno.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark /* FALLTHRU to common case - returning irqno */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark /* non-PCI; assumes ISA-style edge-triggered */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark psm_set_elcr(irqno, 0); /* set IRQ to ISA mode */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * uppc_intr_enter() raises the ipl to the level of the current interrupt,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * and sends EOI to the pics.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * If interrupt is 7 or 15 and not spurious interrupt, send specific EOI
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * else send non-specific EOI
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * uppc_intr_enter() returns the new priority level,
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * or -1 for spurious interrupt
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * During wait_till_seen() periods when interrupt vector is being
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * removed in remove_av(), the removed hardware interrupt could
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * trigger and got here with newipl 0. It has to send EOI
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * as usual but no need to call setspl and returns -1 like spurious.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark } else { /* int was 7 or 15 */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark if (newipl && newipl <= ipl) { /* Check for spurious int */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * uppc_intr_exit() restores the old interrupt
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * priority level after processing an interrupt.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * It is called with interrupts disabled, and does not enable interrupts.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark/* ARGSUSED */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * uppc_setspl() loads new interrupt masks into the pics
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * based on input ipl.
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark/* ARGSUSED */
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * program new slave pic mask
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * program new master pic mask
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * read master to allow pics to settle
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * uppc_gethrtime() returns high resolution timer value
bd670b35a010421b6e1a5536c34453a827007c81Erik Nordmark * read counter 0