/arch/powerpc/platforms/ps3/interrupt.c
http://github.com/mirrors/linux · C · 782 lines · 440 code · 169 blank · 173 comment · 24 complexity · dda5d016049cdb4dd83575e4535ac1c3 MD5 · raw file
- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * PS3 interrupt routines.
- *
- * Copyright (C) 2006 Sony Computer Entertainment Inc.
- * Copyright 2006 Sony Corp.
- */
- #include <linux/kernel.h>
- #include <linux/export.h>
- #include <linux/irq.h>
- #include <asm/machdep.h>
- #include <asm/udbg.h>
- #include <asm/lv1call.h>
- #include <asm/smp.h>
- #include "platform.h"
- #if defined(DEBUG)
- #define DBG udbg_printf
- #define FAIL udbg_printf
- #else
- #define DBG pr_devel
- #define FAIL pr_debug
- #endif
- /**
- * struct ps3_bmp - a per cpu irq status and mask bitmap structure
- * @status: 256 bit status bitmap indexed by plug
- * @unused_1: Alignment
- * @mask: 256 bit mask bitmap indexed by plug
- * @unused_2: Alignment
- *
- * The HV maintains per SMT thread mappings of HV outlet to HV plug on
- * behalf of the guest. These mappings are implemented as 256 bit guest
- * supplied bitmaps indexed by plug number. The addresses of the bitmaps
- * are registered with the HV through lv1_configure_irq_state_bitmap().
- * The HV requires that the 512 bits of status + mask not cross a page
- * boundary. PS3_BMP_MINALIGN is used to define this minimal 64 byte
- * alignment.
- *
- * The HV supports 256 plugs per thread, assigned as {0..255}, for a total
- * of 512 plugs supported on a processor. To simplify the logic this
- * implementation equates HV plug value to Linux virq value, constrains each
- * interrupt to have a system wide unique plug number, and limits the range
- * of the plug values to map into the first dword of the bitmaps. This
- * gives a usable range of plug values of {NUM_ISA_INTERRUPTS..63}. Note
- * that there is no constraint on how many in this set an individual thread
- * can acquire.
- *
- * The mask is declared as unsigned long so we can use set/clear_bit on it.
- */
- #define PS3_BMP_MINALIGN 64
- struct ps3_bmp {
- struct {
- u64 status;
- u64 unused_1[3];
- unsigned long mask;
- u64 unused_2[3];
- };
- };
- /**
- * struct ps3_private - a per cpu data structure
- * @bmp: ps3_bmp structure
- * @bmp_lock: Synchronize access to bmp.
- * @ipi_debug_brk_mask: Mask for debug break IPIs
- * @ppe_id: HV logical_ppe_id
- * @thread_id: HV thread_id
- * @ipi_mask: Mask of IPI virqs
- */
- struct ps3_private {
- struct ps3_bmp bmp __attribute__ ((aligned (PS3_BMP_MINALIGN)));
- spinlock_t bmp_lock;
- u64 ppe_id;
- u64 thread_id;
- unsigned long ipi_debug_brk_mask;
- unsigned long ipi_mask;
- };
- static DEFINE_PER_CPU(struct ps3_private, ps3_private);
- /**
- * ps3_chip_mask - Set an interrupt mask bit in ps3_bmp.
- * @virq: The assigned Linux virq.
- *
- * Sets ps3_bmp.mask and calls lv1_did_update_interrupt_mask().
- */
- static void ps3_chip_mask(struct irq_data *d)
- {
- struct ps3_private *pd = irq_data_get_irq_chip_data(d);
- unsigned long flags;
- DBG("%s:%d: thread_id %llu, virq %d\n", __func__, __LINE__,
- pd->thread_id, d->irq);
- local_irq_save(flags);
- clear_bit(63 - d->irq, &pd->bmp.mask);
- lv1_did_update_interrupt_mask(pd->ppe_id, pd->thread_id);
- local_irq_restore(flags);
- }
- /**
- * ps3_chip_unmask - Clear an interrupt mask bit in ps3_bmp.
- * @virq: The assigned Linux virq.
- *
- * Clears ps3_bmp.mask and calls lv1_did_update_interrupt_mask().
- */
- static void ps3_chip_unmask(struct irq_data *d)
- {
- struct ps3_private *pd = irq_data_get_irq_chip_data(d);
- unsigned long flags;
- DBG("%s:%d: thread_id %llu, virq %d\n", __func__, __LINE__,
- pd->thread_id, d->irq);
- local_irq_save(flags);
- set_bit(63 - d->irq, &pd->bmp.mask);
- lv1_did_update_interrupt_mask(pd->ppe_id, pd->thread_id);
- local_irq_restore(flags);
- }
- /**
- * ps3_chip_eoi - HV end-of-interrupt.
- * @virq: The assigned Linux virq.
- *
- * Calls lv1_end_of_interrupt_ext().
- */
- static void ps3_chip_eoi(struct irq_data *d)
- {
- const struct ps3_private *pd = irq_data_get_irq_chip_data(d);
- /* non-IPIs are EOIed here. */
- if (!test_bit(63 - d->irq, &pd->ipi_mask))
- lv1_end_of_interrupt_ext(pd->ppe_id, pd->thread_id, d->irq);
- }
- /**
- * ps3_irq_chip - Represents the ps3_bmp as a Linux struct irq_chip.
- */
- static struct irq_chip ps3_irq_chip = {
- .name = "ps3",
- .irq_mask = ps3_chip_mask,
- .irq_unmask = ps3_chip_unmask,
- .irq_eoi = ps3_chip_eoi,
- };
- /**
- * ps3_virq_setup - virq related setup.
- * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
- * serviced on.
- * @outlet: The HV outlet from the various create outlet routines.
- * @virq: The assigned Linux virq.
- *
- * Calls irq_create_mapping() to get a virq and sets the chip data to
- * ps3_private data.
- */
- static int ps3_virq_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
- unsigned int *virq)
- {
- int result;
- struct ps3_private *pd;
- /* This defines the default interrupt distribution policy. */
- if (cpu == PS3_BINDING_CPU_ANY)
- cpu = 0;
- pd = &per_cpu(ps3_private, cpu);
- *virq = irq_create_mapping(NULL, outlet);
- if (!*virq) {
- FAIL("%s:%d: irq_create_mapping failed: outlet %lu\n",
- __func__, __LINE__, outlet);
- result = -ENOMEM;
- goto fail_create;
- }
- DBG("%s:%d: outlet %lu => cpu %u, virq %u\n", __func__, __LINE__,
- outlet, cpu, *virq);
- result = irq_set_chip_data(*virq, pd);
- if (result) {
- FAIL("%s:%d: irq_set_chip_data failed\n",
- __func__, __LINE__);
- goto fail_set;
- }
- ps3_chip_mask(irq_get_irq_data(*virq));
- return result;
- fail_set:
- irq_dispose_mapping(*virq);
- fail_create:
- return result;
- }
- /**
- * ps3_virq_destroy - virq related teardown.
- * @virq: The assigned Linux virq.
- *
- * Clears chip data and calls irq_dispose_mapping() for the virq.
- */
- static int ps3_virq_destroy(unsigned int virq)
- {
- const struct ps3_private *pd = irq_get_chip_data(virq);
- DBG("%s:%d: ppe_id %llu, thread_id %llu, virq %u\n", __func__,
- __LINE__, pd->ppe_id, pd->thread_id, virq);
- irq_set_chip_data(virq, NULL);
- irq_dispose_mapping(virq);
- DBG("%s:%d <-\n", __func__, __LINE__);
- return 0;
- }
- /**
- * ps3_irq_plug_setup - Generic outlet and virq related setup.
- * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
- * serviced on.
- * @outlet: The HV outlet from the various create outlet routines.
- * @virq: The assigned Linux virq.
- *
- * Sets up virq and connects the irq plug.
- */
- int ps3_irq_plug_setup(enum ps3_cpu_binding cpu, unsigned long outlet,
- unsigned int *virq)
- {
- int result;
- struct ps3_private *pd;
- result = ps3_virq_setup(cpu, outlet, virq);
- if (result) {
- FAIL("%s:%d: ps3_virq_setup failed\n", __func__, __LINE__);
- goto fail_setup;
- }
- pd = irq_get_chip_data(*virq);
- /* Binds outlet to cpu + virq. */
- result = lv1_connect_irq_plug_ext(pd->ppe_id, pd->thread_id, *virq,
- outlet, 0);
- if (result) {
- FAIL("%s:%d: lv1_connect_irq_plug_ext failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- result = -EPERM;
- goto fail_connect;
- }
- return result;
- fail_connect:
- ps3_virq_destroy(*virq);
- fail_setup:
- return result;
- }
- EXPORT_SYMBOL_GPL(ps3_irq_plug_setup);
- /**
- * ps3_irq_plug_destroy - Generic outlet and virq related teardown.
- * @virq: The assigned Linux virq.
- *
- * Disconnects the irq plug and tears down virq.
- * Do not call for system bus event interrupts setup with
- * ps3_sb_event_receive_port_setup().
- */
- int ps3_irq_plug_destroy(unsigned int virq)
- {
- int result;
- const struct ps3_private *pd = irq_get_chip_data(virq);
- DBG("%s:%d: ppe_id %llu, thread_id %llu, virq %u\n", __func__,
- __LINE__, pd->ppe_id, pd->thread_id, virq);
- ps3_chip_mask(irq_get_irq_data(virq));
- result = lv1_disconnect_irq_plug_ext(pd->ppe_id, pd->thread_id, virq);
- if (result)
- FAIL("%s:%d: lv1_disconnect_irq_plug_ext failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- ps3_virq_destroy(virq);
- return result;
- }
- EXPORT_SYMBOL_GPL(ps3_irq_plug_destroy);
- /**
- * ps3_event_receive_port_setup - Setup an event receive port.
- * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
- * serviced on.
- * @virq: The assigned Linux virq.
- *
- * The virq can be used with lv1_connect_interrupt_event_receive_port() to
- * arrange to receive interrupts from system-bus devices, or with
- * ps3_send_event_locally() to signal events.
- */
- int ps3_event_receive_port_setup(enum ps3_cpu_binding cpu, unsigned int *virq)
- {
- int result;
- u64 outlet;
- result = lv1_construct_event_receive_port(&outlet);
- if (result) {
- FAIL("%s:%d: lv1_construct_event_receive_port failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- *virq = 0;
- return result;
- }
- result = ps3_irq_plug_setup(cpu, outlet, virq);
- BUG_ON(result);
- return result;
- }
- EXPORT_SYMBOL_GPL(ps3_event_receive_port_setup);
- /**
- * ps3_event_receive_port_destroy - Destroy an event receive port.
- * @virq: The assigned Linux virq.
- *
- * Since ps3_event_receive_port_destroy destroys the receive port outlet,
- * SB devices need to call disconnect_interrupt_event_receive_port() before
- * this.
- */
- int ps3_event_receive_port_destroy(unsigned int virq)
- {
- int result;
- DBG(" -> %s:%d virq %u\n", __func__, __LINE__, virq);
- ps3_chip_mask(irq_get_irq_data(virq));
- result = lv1_destruct_event_receive_port(virq_to_hw(virq));
- if (result)
- FAIL("%s:%d: lv1_destruct_event_receive_port failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- /*
- * Don't call ps3_virq_destroy() here since ps3_smp_cleanup_cpu()
- * calls from interrupt context (smp_call_function) when kexecing.
- */
- DBG(" <- %s:%d\n", __func__, __LINE__);
- return result;
- }
- int ps3_send_event_locally(unsigned int virq)
- {
- return lv1_send_event_locally(virq_to_hw(virq));
- }
- /**
- * ps3_sb_event_receive_port_setup - Setup a system bus event receive port.
- * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
- * serviced on.
- * @dev: The system bus device instance.
- * @virq: The assigned Linux virq.
- *
- * An event irq represents a virtual device interrupt. The interrupt_id
- * coresponds to the software interrupt number.
- */
- int ps3_sb_event_receive_port_setup(struct ps3_system_bus_device *dev,
- enum ps3_cpu_binding cpu, unsigned int *virq)
- {
- /* this should go in system-bus.c */
- int result;
- result = ps3_event_receive_port_setup(cpu, virq);
- if (result)
- return result;
- result = lv1_connect_interrupt_event_receive_port(dev->bus_id,
- dev->dev_id, virq_to_hw(*virq), dev->interrupt_id);
- if (result) {
- FAIL("%s:%d: lv1_connect_interrupt_event_receive_port"
- " failed: %s\n", __func__, __LINE__,
- ps3_result(result));
- ps3_event_receive_port_destroy(*virq);
- *virq = 0;
- return result;
- }
- DBG("%s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
- dev->interrupt_id, *virq);
- return 0;
- }
- EXPORT_SYMBOL(ps3_sb_event_receive_port_setup);
- int ps3_sb_event_receive_port_destroy(struct ps3_system_bus_device *dev,
- unsigned int virq)
- {
- /* this should go in system-bus.c */
- int result;
- DBG(" -> %s:%d: interrupt_id %u, virq %u\n", __func__, __LINE__,
- dev->interrupt_id, virq);
- result = lv1_disconnect_interrupt_event_receive_port(dev->bus_id,
- dev->dev_id, virq_to_hw(virq), dev->interrupt_id);
- if (result)
- FAIL("%s:%d: lv1_disconnect_interrupt_event_receive_port"
- " failed: %s\n", __func__, __LINE__,
- ps3_result(result));
- result = ps3_event_receive_port_destroy(virq);
- BUG_ON(result);
- /*
- * ps3_event_receive_port_destroy() destroys the IRQ plug,
- * so don't call ps3_irq_plug_destroy() here.
- */
- result = ps3_virq_destroy(virq);
- BUG_ON(result);
- DBG(" <- %s:%d\n", __func__, __LINE__);
- return result;
- }
- EXPORT_SYMBOL(ps3_sb_event_receive_port_destroy);
- /**
- * ps3_io_irq_setup - Setup a system bus io irq.
- * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
- * serviced on.
- * @interrupt_id: The device interrupt id read from the system repository.
- * @virq: The assigned Linux virq.
- *
- * An io irq represents a non-virtualized device interrupt. interrupt_id
- * coresponds to the interrupt number of the interrupt controller.
- */
- int ps3_io_irq_setup(enum ps3_cpu_binding cpu, unsigned int interrupt_id,
- unsigned int *virq)
- {
- int result;
- u64 outlet;
- result = lv1_construct_io_irq_outlet(interrupt_id, &outlet);
- if (result) {
- FAIL("%s:%d: lv1_construct_io_irq_outlet failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- return result;
- }
- result = ps3_irq_plug_setup(cpu, outlet, virq);
- BUG_ON(result);
- return result;
- }
- EXPORT_SYMBOL_GPL(ps3_io_irq_setup);
- int ps3_io_irq_destroy(unsigned int virq)
- {
- int result;
- unsigned long outlet = virq_to_hw(virq);
- ps3_chip_mask(irq_get_irq_data(virq));
- /*
- * lv1_destruct_io_irq_outlet() will destroy the IRQ plug,
- * so call ps3_irq_plug_destroy() first.
- */
- result = ps3_irq_plug_destroy(virq);
- BUG_ON(result);
- result = lv1_destruct_io_irq_outlet(outlet);
- if (result)
- FAIL("%s:%d: lv1_destruct_io_irq_outlet failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- return result;
- }
- EXPORT_SYMBOL_GPL(ps3_io_irq_destroy);
- /**
- * ps3_vuart_irq_setup - Setup the system virtual uart virq.
- * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
- * serviced on.
- * @virt_addr_bmp: The caller supplied virtual uart interrupt bitmap.
- * @virq: The assigned Linux virq.
- *
- * The system supports only a single virtual uart, so multiple calls without
- * freeing the interrupt will return a wrong state error.
- */
- int ps3_vuart_irq_setup(enum ps3_cpu_binding cpu, void* virt_addr_bmp,
- unsigned int *virq)
- {
- int result;
- u64 outlet;
- u64 lpar_addr;
- BUG_ON(!is_kernel_addr((u64)virt_addr_bmp));
- lpar_addr = ps3_mm_phys_to_lpar(__pa(virt_addr_bmp));
- result = lv1_configure_virtual_uart_irq(lpar_addr, &outlet);
- if (result) {
- FAIL("%s:%d: lv1_configure_virtual_uart_irq failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- return result;
- }
- result = ps3_irq_plug_setup(cpu, outlet, virq);
- BUG_ON(result);
- return result;
- }
- EXPORT_SYMBOL_GPL(ps3_vuart_irq_setup);
- int ps3_vuart_irq_destroy(unsigned int virq)
- {
- int result;
- ps3_chip_mask(irq_get_irq_data(virq));
- result = lv1_deconfigure_virtual_uart_irq();
- if (result) {
- FAIL("%s:%d: lv1_configure_virtual_uart_irq failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- return result;
- }
- result = ps3_irq_plug_destroy(virq);
- BUG_ON(result);
- return result;
- }
- EXPORT_SYMBOL_GPL(ps3_vuart_irq_destroy);
- /**
- * ps3_spe_irq_setup - Setup an spe virq.
- * @cpu: enum ps3_cpu_binding indicating the cpu the interrupt should be
- * serviced on.
- * @spe_id: The spe_id returned from lv1_construct_logical_spe().
- * @class: The spe interrupt class {0,1,2}.
- * @virq: The assigned Linux virq.
- *
- */
- int ps3_spe_irq_setup(enum ps3_cpu_binding cpu, unsigned long spe_id,
- unsigned int class, unsigned int *virq)
- {
- int result;
- u64 outlet;
- BUG_ON(class > 2);
- result = lv1_get_spe_irq_outlet(spe_id, class, &outlet);
- if (result) {
- FAIL("%s:%d: lv1_get_spe_irq_outlet failed: %s\n",
- __func__, __LINE__, ps3_result(result));
- return result;
- }
- result = ps3_irq_plug_setup(cpu, outlet, virq);
- BUG_ON(result);
- return result;
- }
- int ps3_spe_irq_destroy(unsigned int virq)
- {
- int result;
- ps3_chip_mask(irq_get_irq_data(virq));
- result = ps3_irq_plug_destroy(virq);
- BUG_ON(result);
- return result;
- }
- #define PS3_INVALID_OUTLET ((irq_hw_number_t)-1)
- #define PS3_PLUG_MAX 63
- #if defined(DEBUG)
- static void _dump_64_bmp(const char *header, const u64 *p, unsigned cpu,
- const char* func, int line)
- {
- pr_debug("%s:%d: %s %u {%04llx_%04llx_%04llx_%04llx}\n",
- func, line, header, cpu,
- *p >> 48, (*p >> 32) & 0xffff, (*p >> 16) & 0xffff,
- *p & 0xffff);
- }
- static void __maybe_unused _dump_256_bmp(const char *header,
- const u64 *p, unsigned cpu, const char* func, int line)
- {
- pr_debug("%s:%d: %s %u {%016llx:%016llx:%016llx:%016llx}\n",
- func, line, header, cpu, p[0], p[1], p[2], p[3]);
- }
- #define dump_bmp(_x) _dump_bmp(_x, __func__, __LINE__)
- static void _dump_bmp(struct ps3_private* pd, const char* func, int line)
- {
- unsigned long flags;
- spin_lock_irqsave(&pd->bmp_lock, flags);
- _dump_64_bmp("stat", &pd->bmp.status, pd->thread_id, func, line);
- _dump_64_bmp("mask", (u64*)&pd->bmp.mask, pd->thread_id, func, line);
- spin_unlock_irqrestore(&pd->bmp_lock, flags);
- }
- #define dump_mask(_x) _dump_mask(_x, __func__, __LINE__)
- static void __maybe_unused _dump_mask(struct ps3_private *pd,
- const char* func, int line)
- {
- unsigned long flags;
- spin_lock_irqsave(&pd->bmp_lock, flags);
- _dump_64_bmp("mask", (u64*)&pd->bmp.mask, pd->thread_id, func, line);
- spin_unlock_irqrestore(&pd->bmp_lock, flags);
- }
- #else
- static void dump_bmp(struct ps3_private* pd) {};
- #endif /* defined(DEBUG) */
- static int ps3_host_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hwirq)
- {
- DBG("%s:%d: hwirq %lu, virq %u\n", __func__, __LINE__, hwirq,
- virq);
- irq_set_chip_and_handler(virq, &ps3_irq_chip, handle_fasteoi_irq);
- return 0;
- }
- static int ps3_host_match(struct irq_domain *h, struct device_node *np,
- enum irq_domain_bus_token bus_token)
- {
- /* Match all */
- return 1;
- }
- static const struct irq_domain_ops ps3_host_ops = {
- .map = ps3_host_map,
- .match = ps3_host_match,
- };
- void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq)
- {
- struct ps3_private *pd = &per_cpu(ps3_private, cpu);
- set_bit(63 - virq, &pd->ipi_debug_brk_mask);
- DBG("%s:%d: cpu %u, virq %u, mask %lxh\n", __func__, __LINE__,
- cpu, virq, pd->ipi_debug_brk_mask);
- }
- void __init ps3_register_ipi_irq(unsigned int cpu, unsigned int virq)
- {
- struct ps3_private *pd = &per_cpu(ps3_private, cpu);
- set_bit(63 - virq, &pd->ipi_mask);
- DBG("%s:%d: cpu %u, virq %u, ipi_mask %lxh\n", __func__, __LINE__,
- cpu, virq, pd->ipi_mask);
- }
- static unsigned int ps3_get_irq(void)
- {
- struct ps3_private *pd = this_cpu_ptr(&ps3_private);
- u64 x = (pd->bmp.status & pd->bmp.mask);
- unsigned int plug;
- /* check for ipi break first to stop this cpu ASAP */
- if (x & pd->ipi_debug_brk_mask)
- x &= pd->ipi_debug_brk_mask;
- asm volatile("cntlzd %0,%1" : "=r" (plug) : "r" (x));
- plug &= 0x3f;
- if (unlikely(!plug)) {
- DBG("%s:%d: no plug found: thread_id %llu\n", __func__,
- __LINE__, pd->thread_id);
- dump_bmp(&per_cpu(ps3_private, 0));
- dump_bmp(&per_cpu(ps3_private, 1));
- return 0;
- }
- #if defined(DEBUG)
- if (unlikely(plug < NUM_ISA_INTERRUPTS || plug > PS3_PLUG_MAX)) {
- dump_bmp(&per_cpu(ps3_private, 0));
- dump_bmp(&per_cpu(ps3_private, 1));
- BUG();
- }
- #endif
- /* IPIs are EOIed here. */
- if (test_bit(63 - plug, &pd->ipi_mask))
- lv1_end_of_interrupt_ext(pd->ppe_id, pd->thread_id, plug);
- return plug;
- }
- void __init ps3_init_IRQ(void)
- {
- int result;
- unsigned cpu;
- struct irq_domain *host;
- host = irq_domain_add_nomap(NULL, PS3_PLUG_MAX + 1, &ps3_host_ops, NULL);
- irq_set_default_host(host);
- for_each_possible_cpu(cpu) {
- struct ps3_private *pd = &per_cpu(ps3_private, cpu);
- lv1_get_logical_ppe_id(&pd->ppe_id);
- pd->thread_id = get_hard_smp_processor_id(cpu);
- spin_lock_init(&pd->bmp_lock);
- DBG("%s:%d: ppe_id %llu, thread_id %llu, bmp %lxh\n",
- __func__, __LINE__, pd->ppe_id, pd->thread_id,
- ps3_mm_phys_to_lpar(__pa(&pd->bmp)));
- result = lv1_configure_irq_state_bitmap(pd->ppe_id,
- pd->thread_id, ps3_mm_phys_to_lpar(__pa(&pd->bmp)));
- if (result)
- FAIL("%s:%d: lv1_configure_irq_state_bitmap failed:"
- " %s\n", __func__, __LINE__,
- ps3_result(result));
- }
- ppc_md.get_irq = ps3_get_irq;
- }
- void ps3_shutdown_IRQ(int cpu)
- {
- int result;
- u64 ppe_id;
- u64 thread_id = get_hard_smp_processor_id(cpu);
- lv1_get_logical_ppe_id(&ppe_id);
- result = lv1_configure_irq_state_bitmap(ppe_id, thread_id, 0);
- DBG("%s:%d: lv1_configure_irq_state_bitmap (%llu:%llu/%d) %s\n", __func__,
- __LINE__, ppe_id, thread_id, cpu, ps3_result(result));
- }