diff options
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/cell/interrupt.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spider-pic.c | 70 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/platforms/iseries/irq.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/maple/setup.c | 17 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/backlight.c | 85 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/cpufreq_64.c | 14 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/pci.c | 13 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/pic.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/ras.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/xics.c | 34 |
12 files changed, 173 insertions, 91 deletions
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c index b26b496f654..7813a58e0db 100644 --- a/arch/powerpc/platforms/cell/interrupt.c +++ b/arch/powerpc/platforms/cell/interrupt.c @@ -159,7 +159,7 @@ static void iic_request_ipi(int ipi, const char *name) if (iic_hosts[node] == NULL) continue; virq = irq_create_mapping(iic_hosts[node], - iic_ipi_to_irq(ipi), 0); + iic_ipi_to_irq(ipi)); if (virq == NO_IRQ) { printk(KERN_ERR "iic: failed to map IPI %s on node %d\n", @@ -197,7 +197,7 @@ static int iic_host_match(struct irq_host *h, struct device_node *node) } static int iic_host_map(struct irq_host *h, unsigned int virq, - irq_hw_number_t hw, unsigned int flags) + irq_hw_number_t hw) { if (hw < IIC_IRQ_IPI0) set_irq_chip_and_handler(virq, &iic_chip, handle_fasteoi_irq); diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c index ab4c252a4d9..742a03282b4 100644 --- a/arch/powerpc/platforms/cell/spider-pic.c +++ b/arch/powerpc/platforms/cell/spider-pic.c @@ -85,9 +85,6 @@ static void spider_unmask_irq(unsigned int virq) struct spider_pic *pic = spider_virq_to_pic(virq); void __iomem *cfg = spider_get_irq_config(pic, irq_map[virq].hwirq); - /* We use no locking as we should be covered by the descriptor lock - * for access to invidual source configuration registers - */ out_be32(cfg, in_be32(cfg) | 0x30000000u); } @@ -96,9 +93,6 @@ static void spider_mask_irq(unsigned int virq) struct spider_pic *pic = spider_virq_to_pic(virq); void __iomem *cfg = spider_get_irq_config(pic, irq_map[virq].hwirq); - /* We use no locking as we should be covered by the descriptor lock - * for access to invidual source configuration registers - */ out_be32(cfg, in_be32(cfg) & ~0x30000000u); } @@ -120,26 +114,14 @@ static void spider_ack_irq(unsigned int virq) out_be32(pic->regs + TIR_EDC, 0x100 | (src & 0xf)); } -static struct irq_chip spider_pic = { - .typename = " SPIDER ", - .unmask = spider_unmask_irq, - .mask = spider_mask_irq, - .ack = spider_ack_irq, -}; - -static int spider_host_match(struct irq_host *h, struct device_node *node) -{ - struct spider_pic *pic = h->host_data; - return node == pic->of_node; -} - -static int spider_host_map(struct irq_host *h, unsigned int virq, - irq_hw_number_t hw, unsigned int flags) +static int spider_set_irq_type(unsigned int virq, unsigned int type) { - unsigned int sense = flags & IRQ_TYPE_SENSE_MASK; - struct spider_pic *pic = h->host_data; + unsigned int sense = type & IRQ_TYPE_SENSE_MASK; + struct spider_pic *pic = spider_virq_to_pic(virq); + unsigned int hw = irq_map[virq].hwirq; void __iomem *cfg = spider_get_irq_config(pic, hw); - int level = 0; + struct irq_desc *desc = get_irq_desc(virq); + u32 old_mask; u32 ic; /* Note that only level high is supported for most interrupts */ @@ -157,29 +139,57 @@ static int spider_host_map(struct irq_host *h, unsigned int virq, break; case IRQ_TYPE_LEVEL_LOW: ic = 0x0; - level = 1; break; case IRQ_TYPE_LEVEL_HIGH: case IRQ_TYPE_NONE: ic = 0x1; - level = 1; break; default: return -EINVAL; } + /* Update irq_desc */ + desc->status &= ~(IRQ_TYPE_SENSE_MASK | IRQ_LEVEL); + desc->status |= type & IRQ_TYPE_SENSE_MASK; + if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) + desc->status |= IRQ_LEVEL; + /* Configure the source. One gross hack that was there before and * that I've kept around is the priority to the BE which I set to * be the same as the interrupt source number. I don't know wether * that's supposed to make any kind of sense however, we'll have to * decide that, but for now, I'm not changing the behaviour. */ - out_be32(cfg, (ic << 24) | (0x7 << 16) | (pic->node_id << 4) | 0xe); + old_mask = in_be32(cfg) & 0x30000000u; + out_be32(cfg, old_mask | (ic << 24) | (0x7 << 16) | + (pic->node_id << 4) | 0xe); out_be32(cfg + 4, (0x2 << 16) | (hw & 0xff)); - if (level) - get_irq_desc(virq)->status |= IRQ_LEVEL; + return 0; +} + +static struct irq_chip spider_pic = { + .typename = " SPIDER ", + .unmask = spider_unmask_irq, + .mask = spider_mask_irq, + .ack = spider_ack_irq, + .set_type = spider_set_irq_type, +}; + +static int spider_host_match(struct irq_host *h, struct device_node *node) +{ + struct spider_pic *pic = h->host_data; + return node == pic->of_node; +} + +static int spider_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw) +{ set_irq_chip_and_handler(virq, &spider_pic, handle_level_irq); + + /* Set default irq type */ + set_irq_type(virq, IRQ_TYPE_NONE); + return 0; } @@ -283,7 +293,7 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic) if (iic_host == NULL) return NO_IRQ; /* Manufacture an IIC interrupt number of class 2 */ - virq = irq_create_mapping(iic_host, 0x20 | unit, 0); + virq = irq_create_mapping(iic_host, 0x20 | unit); if (virq == NO_IRQ) printk(KERN_ERR "spider_pic: failed to map cascade !"); return virq; diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 86d55675e1d..3bd36d46ab4 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -583,9 +583,9 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np) spu->isrc = isrc = tmp[0]; /* Now map interrupts of all 3 classes */ - spu->irqs[0] = irq_create_mapping(host, 0x00 | isrc, 0); - spu->irqs[1] = irq_create_mapping(host, 0x10 | isrc, 0); - spu->irqs[2] = irq_create_mapping(host, 0x20 | isrc, 0); + spu->irqs[0] = irq_create_mapping(host, 0x00 | isrc); + spu->irqs[1] = irq_create_mapping(host, 0x10 | isrc); + spu->irqs[2] = irq_create_mapping(host, 0x20 | isrc); /* Right now, we only fail if class 2 failed */ return spu->irqs[2] == NO_IRQ ? -EINVAL : 0; diff --git a/arch/powerpc/platforms/iseries/irq.c b/arch/powerpc/platforms/iseries/irq.c index 2275e64f315..e32446877e7 100644 --- a/arch/powerpc/platforms/iseries/irq.c +++ b/arch/powerpc/platforms/iseries/irq.c @@ -300,7 +300,7 @@ int __init iSeries_allocate_IRQ(HvBusNumber bus, realirq = (((((sub_bus << 8) + (bus - 1)) << 3) + (idsel - 1)) << 3) + function; - return irq_create_mapping(NULL, realirq, IRQ_TYPE_NONE); + return irq_create_mapping(NULL, realirq); } #endif /* CONFIG_PCI */ @@ -341,7 +341,7 @@ unsigned int iSeries_get_irq(struct pt_regs *regs) } static int iseries_irq_host_map(struct irq_host *h, unsigned int virq, - irq_hw_number_t hw, unsigned int flags) + irq_hw_number_t hw) { set_irq_chip_and_handler(virq, &iseries_pic, handle_fasteoi_irq); diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index ecc764a3ff3..fe6b9bff61b 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -215,10 +215,17 @@ static void __init maple_init_IRQ(void) * in Maple device-tree where the type of the controller is * open-pic and not interrupt-controller */ - for_each_node_by_type(np, "open-pic") { - mpic_node = np; - break; - } + + for_each_node_by_type(np, "interrupt-controller") + if (device_is_compatible(np, "open-pic")) { + mpic_node = np; + break; + } + if (mpic_node == NULL) + for_each_node_by_type(np, "open-pic") { + mpic_node = np; + break; + } if (mpic_node == NULL) { printk(KERN_ERR "Failed to locate the MPIC interrupt controller\n"); @@ -245,6 +252,8 @@ static void __init maple_init_IRQ(void) /* XXX Maple specific bits */ flags |= MPIC_BROKEN_U3 | MPIC_WANTS_RESET; + /* All U3/U4 are big-endian, older SLOF firmware doesn't encode this */ + flags |= MPIC_BIG_ENDIAN; /* Setup the openpic driver. More device-tree junks, we hard code no * ISUs for now. I'll have to revisit some stuffs with the folks doing diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c index 205b4a39286..afa593a8544 100644 --- a/arch/powerpc/platforms/powermac/backlight.c +++ b/arch/powerpc/platforms/powermac/backlight.c @@ -10,11 +10,33 @@ #include <linux/kernel.h> #include <linux/fb.h> #include <linux/backlight.h> +#include <linux/adb.h> +#include <linux/pmu.h> +#include <asm/atomic.h> #include <asm/prom.h> #include <asm/backlight.h> #define OLD_BACKLIGHT_MAX 15 +static void pmac_backlight_key_worker(void *data); +static void pmac_backlight_set_legacy_worker(void *data); + +static DECLARE_WORK(pmac_backlight_key_work, pmac_backlight_key_worker, NULL); +static DECLARE_WORK(pmac_backlight_set_legacy_work, pmac_backlight_set_legacy_worker, NULL); + +/* Although these variables are used in interrupt context, it makes no sense to + * protect them. No user is able to produce enough key events per second and + * notice the errors that might happen. + */ +static int pmac_backlight_key_queued; +static int pmac_backlight_set_legacy_queued; + +/* The via-pmu code allows the backlight to be grabbed, in which case the + * in-kernel control of the brightness needs to be disabled. This should + * only be used by really old PowerBooks. + */ +static atomic_t kernel_backlight_disabled = ATOMIC_INIT(0); + /* Protect the pmac_backlight variable */ DEFINE_MUTEX(pmac_backlight_mutex); @@ -72,8 +94,11 @@ int pmac_backlight_curve_lookup(struct fb_info *info, int value) return level; } -static void pmac_backlight_key(int direction) +static void pmac_backlight_key_worker(void *data) { + if (atomic_read(&kernel_backlight_disabled)) + return; + mutex_lock(&pmac_backlight_mutex); if (pmac_backlight) { struct backlight_properties *props; @@ -83,7 +108,8 @@ static void pmac_backlight_key(int direction) props = pmac_backlight->props; brightness = props->brightness + - ((direction?-1:1) * (props->max_brightness / 15)); + ((pmac_backlight_key_queued?-1:1) * + (props->max_brightness / 15)); if (brightness < 0) brightness = 0; @@ -98,17 +124,20 @@ static void pmac_backlight_key(int direction) mutex_unlock(&pmac_backlight_mutex); } -void pmac_backlight_key_up() +/* This function is called in interrupt context */ +void pmac_backlight_key(int direction) { - pmac_backlight_key(0); + if (atomic_read(&kernel_backlight_disabled)) + return; + + /* we can receive multiple interrupts here, but the scheduled work + * will run only once, with the last value + */ + pmac_backlight_key_queued = direction; + schedule_work(&pmac_backlight_key_work); } -void pmac_backlight_key_down() -{ - pmac_backlight_key(1); -} - -int pmac_backlight_set_legacy_brightness(int brightness) +static int __pmac_backlight_set_legacy_brightness(int brightness) { int error = -ENXIO; @@ -137,6 +166,28 @@ int pmac_backlight_set_legacy_brightness(int brightness) return error; } +static void pmac_backlight_set_legacy_worker(void *data) +{ + if (atomic_read(&kernel_backlight_disabled)) + return; + + __pmac_backlight_set_legacy_brightness(pmac_backlight_set_legacy_queued); +} + +/* This function is called in interrupt context */ +void pmac_backlight_set_legacy_brightness_pmu(int brightness) { + if (atomic_read(&kernel_backlight_disabled)) + return; + + pmac_backlight_set_legacy_queued = brightness; + schedule_work(&pmac_backlight_set_legacy_work); +} + +int pmac_backlight_set_legacy_brightness(int brightness) +{ + return __pmac_backlight_set_legacy_brightness(brightness); +} + int pmac_backlight_get_legacy_brightness() { int result = -ENXIO; @@ -158,3 +209,17 @@ int pmac_backlight_get_legacy_brightness() return result; } + +void pmac_backlight_disable() +{ + atomic_inc(&kernel_backlight_disabled); +} + +void pmac_backlight_enable() +{ + atomic_dec(&kernel_backlight_disabled); +} + +EXPORT_SYMBOL_GPL(pmac_backlight); +EXPORT_SYMBOL_GPL(pmac_backlight_mutex); +EXPORT_SYMBOL_GPL(pmac_has_backlight_type); diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c index c364c89adb4..167cd3ce8a1 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_64.c +++ b/arch/powerpc/platforms/powermac/cpufreq_64.c @@ -87,9 +87,9 @@ static int (*g5_query_freq)(void); static DEFINE_MUTEX(g5_switch_mutex); -#ifdef CONFIG_PPC_SMU +#ifdef CONFIG_PMAC_SMU -static const u32 *g5_pmode_data; +static u32 *g5_pmode_data; static int g5_pmode_max; static struct smu_sdbp_fvt *g5_fvt_table; /* table of op. points */ @@ -216,7 +216,7 @@ static void g5_dummy_switch_volt(int speed_mode) { } -#endif /* CONFIG_PPC_SMU */ +#endif /* CONFIG_PMAC_SMU */ /* * Platform function based voltage switching for PowerMac7,2 & 7,3 @@ -383,7 +383,7 @@ static struct cpufreq_driver g5_cpufreq_driver = { }; -#ifdef CONFIG_PPC_SMU +#ifdef CONFIG_PMAC_SMU static int __init g5_neo2_cpufreq_init(struct device_node *cpus) { @@ -535,7 +535,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) return rc; } -#endif /* CONFIG_PPC_SMU */ +#endif /* CONFIG_PMAC_SMU */ static int __init g5_pm72_cpufreq_init(struct device_node *cpus) @@ -731,10 +731,10 @@ static int __init g5_cpufreq_init(void) machine_is_compatible("PowerMac7,3") || machine_is_compatible("RackMac3,1")) rc = g5_pm72_cpufreq_init(cpus); -#ifdef CONFIG_PPC_SMU +#ifdef CONFIG_PMAC_SMU else rc = g5_neo2_cpufreq_init(cpus); -#endif /* CONFIG_PPC_SMU */ +#endif /* CONFIG_PMAC_SMU */ of_node_put(cpus); return rc; diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index 787ffd999bc..9923adc5248 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -16,6 +16,7 @@ #include <linux/string.h> #include <linux/init.h> #include <linux/bootmem.h> +#include <linux/irq.h> #include <asm/sections.h> #include <asm/io.h> @@ -24,10 +25,7 @@ #include <asm/machdep.h> #include <asm/pmac_feature.h> #include <asm/grackle.h> -#ifdef CONFIG_PPC64 -//#include <asm/iommu.h> #include <asm/ppc-pci.h> -#endif #undef DEBUG @@ -46,7 +44,6 @@ static int has_uninorth; static struct pci_controller *u3_agp; static struct pci_controller *u4_pcie; static struct pci_controller *u3_ht; -#define has_second_ohare 0 #else static int has_second_ohare; #endif /* CONFIG_PPC64 */ @@ -996,6 +993,7 @@ void __init pmac_pcibios_fixup(void) /* Read interrupt from the device-tree */ pci_read_irq_line(dev); +#ifdef CONFIG_PPC32 /* Fixup interrupt for the modem/ethernet combo controller. * on machines with a second ohare chip. * The number in the device tree (27) is bogus (correct for @@ -1005,8 +1003,11 @@ void __init pmac_pcibios_fixup(void) */ if (has_second_ohare && dev->vendor == PCI_VENDOR_ID_DEC && - dev->device == PCI_DEVICE_ID_DEC_TULIP_PLUS) - dev->irq = irq_create_mapping(NULL, 60, 0); + dev->device == PCI_DEVICE_ID_DEC_TULIP_PLUS) { + dev->irq = irq_create_mapping(NULL, 60); + set_irq_type(dev->irq, IRQ_TYPE_LEVEL_LOW); + } +#endif /* CONFIG_PPC32 */ } } diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 3d328bc1f7e..060789e31c6 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -291,7 +291,7 @@ static int pmac_pic_host_match(struct irq_host *h, struct device_node *node) } static int pmac_pic_host_map(struct irq_host *h, unsigned int virq, - irq_hw_number_t hw, unsigned int flags) + irq_hw_number_t hw) { struct irq_desc *desc = get_irq_desc(virq); int level; @@ -318,6 +318,7 @@ static int pmac_pic_host_xlate(struct irq_host *h, struct device_node *ct, unsigned int *out_flags) { + *out_flags = IRQ_TYPE_NONE; *out_hwirq = *intspec; return 0; } @@ -434,7 +435,7 @@ static void __init pmac_pic_probe_oldstyle(void) printk(KERN_INFO "irq: System has %d possible interrupts\n", max_irqs); #ifdef CONFIG_XMON - setup_irq(irq_create_mapping(NULL, 20, 0), &xmon_action); + setup_irq(irq_create_mapping(NULL, 20), &xmon_action); #endif } #endif /* CONFIG_PPC32 */ @@ -579,9 +580,10 @@ void __init pmac_pic_init(void) flags |= OF_IMAP_OLDWORLD_MAC; if (get_property(of_chosen, "linux,bootx", NULL) != NULL) flags |= OF_IMAP_NO_PHANDLE; - of_irq_map_init(flags); #endif /* CONFIG_PPC_32 */ + of_irq_map_init(flags); + /* We first try to detect Apple's new Core99 chipset, since mac-io * is quite different on those machines and contains an IBM MPIC2. */ diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 0e6339ee45a..903115d67fd 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -93,8 +93,7 @@ static void request_ras_irqs(struct device_node *np, for (i = 0; i < opicplen; i++) { if (count > 15) break; - virqs[count] = irq_create_mapping(NULL, *(opicprop++), - IRQ_TYPE_NONE); + virqs[count] = irq_create_mapping(NULL, *(opicprop++)); if (virqs[count] == NO_IRQ) printk(KERN_ERR "Unable to allocate interrupt " "number for %s\n", np->full_name); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 927e0a423b8..de214d86ff4 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -501,7 +501,8 @@ static void pseries_dedicated_idle_sleep(void) } /* - * Cede if the other thread is not idle, so that it can + * If not SMT, cede processor. If CPU is running SMT + * cede if the other thread is not idle, so that it can * go single-threaded. If the other thread is idle, * we ask the hypervisor if it has pending work it * wants to do and cede if it does. Otherwise we keep @@ -514,7 +515,8 @@ static void pseries_dedicated_idle_sleep(void) * very low priority. The cede enables interrupts, which * doesn't matter here. */ - if (!lppaca[cpu ^ 1].idle || poll_pending() == H_PENDING) + if (!cpu_has_feature(CPU_FTR_SMT) || !lppaca[cpu ^ 1].idle + || poll_pending() == H_PENDING) cede_processor(); out: diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 75642104944..1eab4688be1 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -502,16 +502,9 @@ static int xics_host_match(struct irq_host *h, struct device_node *node) } static int xics_host_map_direct(struct irq_host *h, unsigned int virq, - irq_hw_number_t hw, unsigned int flags) + irq_hw_number_t hw) { - unsigned int sense = flags & IRQ_TYPE_SENSE_MASK; - - pr_debug("xics: map_direct virq %d, hwirq 0x%lx, flags: 0x%x\n", - virq, hw, flags); - - if (sense && sense != IRQ_TYPE_LEVEL_LOW) - printk(KERN_WARNING "xics: using unsupported sense 0x%x" - " for irq %d (h: 0x%lx)\n", flags, virq, hw); + pr_debug("xics: map_direct virq %d, hwirq 0x%lx\n", virq, hw); get_irq_desc(virq)->status |= IRQ_LEVEL; set_irq_chip_and_handler(virq, &xics_pic_direct, handle_fasteoi_irq); @@ -519,16 +512,9 @@ static int xics_host_map_direct(struct irq_host *h, unsigned int virq, } static int xics_host_map_lpar(struct irq_host *h, unsigned int virq, - irq_hw_number_t hw, unsigned int flags) + irq_hw_number_t hw) { - unsigned int sense = flags & IRQ_TYPE_SENSE_MASK; - - pr_debug("xics: map_lpar virq %d, hwirq 0x%lx, flags: 0x%x\n", - virq, hw, flags); - - if (sense && sense != IRQ_TYPE_LEVEL_LOW) - printk(KERN_WARNING "xics: using unsupported sense 0x%x" - " for irq %d (h: 0x%lx)\n", flags, virq, hw); + pr_debug("xics: map_direct virq %d, hwirq 0x%lx\n", virq, hw); get_irq_desc(virq)->status |= IRQ_LEVEL; set_irq_chip_and_handler(virq, &xics_pic_lpar, handle_fasteoi_irq); @@ -757,7 +743,7 @@ void xics_request_IPIs(void) { unsigned int ipi; - ipi = irq_create_mapping(xics_host, XICS_IPI, 0); + ipi = irq_create_mapping(xics_host, XICS_IPI); BUG_ON(ipi == NO_IRQ); /* @@ -783,6 +769,14 @@ void xics_teardown_cpu(int secondary) xics_set_cpu_priority(cpu, 0); /* + * Clear IPI + */ + if (firmware_has_feature(FW_FEATURE_LPAR)) + lpar_qirr_info(cpu, 0xff); + else + direct_qirr_info(cpu, 0xff); + + /* * we need to EOI the IPI if we got here from kexec down IPI * * probably need to check all the other interrupts too @@ -795,7 +789,7 @@ void xics_teardown_cpu(int secondary) return; desc = get_irq_desc(ipi); if (desc->chip && desc->chip->eoi) - desc->chip->eoi(XICS_IPI); + desc->chip->eoi(ipi); /* * Some machines need to have at least one cpu in the GIQ, |