cregit-Linux how code gets into the kernel

Release 4.14 arch/powerpc/platforms/powermac/pic.c

/*
 *  Support for the interrupt controllers found on Power Macintosh,
 *  currently Apple's "Grand Central" interrupt controller in all
 *  it's incarnations. OpenPIC support used on newer machines is
 *  in a separate file
 *
 *  Copyright (C) 1997 Paul Mackerras (paulus@samba.org)
 *  Copyright (C) 2005 Benjamin Herrenschmidt (benh@kernel.crashing.org)
 *                     IBM, Corp.
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version
 *  2 of the License, or (at your option) any later version.
 *
 */

#include <linux/stddef.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/signal.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/syscore_ops.h>
#include <linux/adb.h>
#include <linux/pmu.h>

#include <asm/sections.h>
#include <asm/io.h>
#include <asm/smp.h>
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#include <asm/time.h>
#include <asm/pmac_feature.h>
#include <asm/mpic.h>
#include <asm/xmon.h>

#include "pmac.h"

#ifdef CONFIG_PPC32

struct pmac_irq_hw {
        
unsigned int    event;
        
unsigned int    enable;
        
unsigned int    ack;
        
unsigned int    level;
};

/* Workaround flags for 32bit powermac machines */

unsigned int of_irq_workarounds;

struct device_node *of_irq_dflt_pic;

/* Default addresses */

static volatile struct pmac_irq_hw __iomem *pmac_irq_hw[4];


static int max_irqs;

static int max_real_irqs;

static DEFINE_RAW_SPINLOCK(pmac_pic_lock);

/* The max irq number this driver deals with is 128; see max_irqs */
static DECLARE_BITMAP(ppc_lost_interrupts, 128);
static DECLARE_BITMAP(ppc_cached_irq_mask, 128);

static int pmac_irq_cascade = -1;

static struct irq_domain *pmac_pic_host;


static void __pmac_retrigger(unsigned int irq_nr) { if (irq_nr >= max_real_irqs && pmac_irq_cascade > 0) { __set_bit(irq_nr, ppc_lost_interrupts); irq_nr = pmac_irq_cascade; mb(); } if (!__test_and_set_bit(irq_nr, ppc_lost_interrupts)) { atomic_inc(&ppc_n_lost_interrupts); set_dec(1); } }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt3152.54%266.67%
Paul Mackerras2847.46%133.33%
Total59100.00%3100.00%


static void pmac_mask_and_ack_irq(struct irq_data *d) { unsigned int src = irqd_to_hwirq(d); unsigned long bit = 1UL << (src & 0x1f); int i = src >> 5; unsigned long flags; raw_spin_lock_irqsave(&pmac_pic_lock, flags); __clear_bit(src, ppc_cached_irq_mask); if (__test_and_clear_bit(src, ppc_lost_interrupts)) atomic_dec(&ppc_n_lost_interrupts); out_le32(&pmac_irq_hw[i]->enable, ppc_cached_irq_mask[i]); out_le32(&pmac_irq_hw[i]->ack, bit); do { /* make sure ack gets to controller before we enable interrupts */ mb(); } while((in_le32(&pmac_irq_hw[i]->enable) & bit) != (ppc_cached_irq_mask[i] & bit)); raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras11680.56%114.29%
Benjamin Herrenschmidt1812.50%342.86%
Lennert Buytenhek53.47%114.29%
Grant C. Likely32.08%114.29%
Thomas Gleixner21.39%114.29%
Total144100.00%7100.00%


static void pmac_ack_irq(struct irq_data *d) { unsigned int src = irqd_to_hwirq(d); unsigned long bit = 1UL << (src & 0x1f); int i = src >> 5; unsigned long flags; raw_spin_lock_irqsave(&pmac_pic_lock, flags); if (__test_and_clear_bit(src, ppc_lost_interrupts)) atomic_dec(&ppc_n_lost_interrupts); out_le32(&pmac_irq_hw[i]->ack, bit); (void)in_le32(&pmac_irq_hw[i]->ack); raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt5857.43%233.33%
Paul Mackerras3332.67%116.67%
Lennert Buytenhek54.95%116.67%
Grant C. Likely32.97%116.67%
Thomas Gleixner21.98%116.67%
Total101100.00%6100.00%


static void __pmac_set_irq_mask(unsigned int irq_nr, int nokicklost) { unsigned long bit = 1UL << (irq_nr & 0x1f); int i = irq_nr >> 5; if ((unsigned)irq_nr >= max_irqs) return; /* enable unmasked interrupts */ out_le32(&pmac_irq_hw[i]->enable, ppc_cached_irq_mask[i]); do { /* make sure mask gets to controller before we return to user */ mb(); } while((in_le32(&pmac_irq_hw[i]->enable) & bit) != (ppc_cached_irq_mask[i] & bit)); /* * Unfortunately, setting the bit in the enable register * when the device interrupt is already on *doesn't* set * the bit in the flag register or request another interrupt. */ if (bit & ppc_cached_irq_mask[i] & in_le32(&pmac_irq_hw[i]->level)) __pmac_retrigger(irq_nr); }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras7764.71%150.00%
Benjamin Herrenschmidt4235.29%150.00%
Total119100.00%2100.00%

/* When an irq gets requested for the first client, if it's an * edge interrupt, we clear any previous one on the controller */
static unsigned int pmac_startup_irq(struct irq_data *d) { unsigned long flags; unsigned int src = irqd_to_hwirq(d); unsigned long bit = 1UL << (src & 0x1f); int i = src >> 5; raw_spin_lock_irqsave(&pmac_pic_lock, flags); if (!irqd_is_level_type(d)) out_le32(&pmac_irq_hw[i]->ack, bit); __set_bit(src, ppc_cached_irq_mask); __pmac_set_irq_mask(src, 0); raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras5455.10%112.50%
Benjamin Herrenschmidt2929.59%225.00%
Lennert Buytenhek66.12%112.50%
Thomas Gleixner44.08%225.00%
Grant C. Likely33.06%112.50%
Michael Ellerman22.04%112.50%
Total98100.00%8100.00%


static void pmac_mask_irq(struct irq_data *d) { unsigned long flags; unsigned int src = irqd_to_hwirq(d); raw_spin_lock_irqsave(&pmac_pic_lock, flags); __clear_bit(src, ppc_cached_irq_mask); __pmac_set_irq_mask(src, 1); raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt2750.00%342.86%
Paul Mackerras1731.48%114.29%
Lennert Buytenhek59.26%114.29%
Grant C. Likely35.56%114.29%
Thomas Gleixner23.70%114.29%
Total54100.00%7100.00%


static void pmac_unmask_irq(struct irq_data *d) { unsigned long flags; unsigned int src = irqd_to_hwirq(d); raw_spin_lock_irqsave(&pmac_pic_lock, flags); __set_bit(src, ppc_cached_irq_mask); __pmac_set_irq_mask(src, 0); raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt2750.00%233.33%
Paul Mackerras1731.48%116.67%
Lennert Buytenhek59.26%116.67%
Grant C. Likely35.56%116.67%
Thomas Gleixner23.70%116.67%
Total54100.00%6100.00%


static int pmac_retrigger(struct irq_data *d) { unsigned long flags; raw_spin_lock_irqsave(&pmac_pic_lock, flags); __pmac_retrigger(irqd_to_hwirq(d)); raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); return 1; }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt1945.24%120.00%
Paul Mackerras1330.95%120.00%
Lennert Buytenhek511.90%120.00%
Grant C. Likely37.14%120.00%
Thomas Gleixner24.76%120.00%
Total42100.00%5100.00%

static struct irq_chip pmac_pic = { .name = "PMAC-PIC", .irq_startup = pmac_startup_irq, .irq_mask = pmac_mask_irq, .irq_ack = pmac_ack_irq, .irq_mask_ack = pmac_mask_and_ack_irq, .irq_unmask = pmac_unmask_irq, .irq_retrigger = pmac_retrigger, };
static irqreturn_t gatwick_action(int cpl, void *dev_id) { unsigned long flags; int irq, bits; int rc = IRQ_NONE; raw_spin_lock_irqsave(&pmac_pic_lock, flags); for (irq = max_irqs; (irq -= 32) >= max_real_irqs; ) { int i = irq >> 5; bits = in_le32(&pmac_irq_hw[i]->event) | ppc_lost_interrupts[i]; bits |= in_le32(&pmac_irq_hw[i]->level); bits &= ppc_cached_irq_mask[i]; if (bits == 0) continue; irq += __ilog2(bits); raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); generic_handle_irq(irq); raw_spin_lock_irqsave(&pmac_pic_lock, flags); rc = IRQ_HANDLED; } raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); return rc; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras10470.75%125.00%
Benjamin Herrenschmidt3825.85%125.00%
Thomas Gleixner42.72%125.00%
Michael Ellerman10.68%125.00%
Total147100.00%4100.00%


static unsigned int pmac_pic_get_irq(void) { int irq; unsigned long bits = 0; unsigned long flags; #ifdef CONFIG_PPC_PMAC32_PSURGE /* IPI's are a hack on the powersurge -- Cort */ if (smp_processor_id() != 0) { return psurge_secondary_virq; } #endif /* CONFIG_PPC_PMAC32_PSURGE */ raw_spin_lock_irqsave(&pmac_pic_lock, flags); for (irq = max_real_irqs; (irq -= 32) >= 0; ) { int i = irq >> 5; bits = in_le32(&pmac_irq_hw[i]->event) | ppc_lost_interrupts[i]; bits |= in_le32(&pmac_irq_hw[i]->level); bits &= ppc_cached_irq_mask[i]; if (bits == 0) continue; irq += __ilog2(bits); break; } raw_spin_unlock_irqrestore(&pmac_pic_lock, flags); if (unlikely(irq < 0)) return 0; return irq_linear_revmap(pmac_pic_host, irq); }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras10970.78%111.11%
Benjamin Herrenschmidt3824.68%333.33%
Milton D. Miller II31.95%222.22%
Thomas Gleixner21.30%111.11%
Olaf Hering10.65%111.11%
Michael Ellerman10.65%111.11%
Total154100.00%9100.00%

#ifdef CONFIG_XMON static struct irqaction xmon_action = { .handler = xmon_irq, .flags = IRQF_NO_THREAD, .name = "NMI - XMON" }; #endif static struct irqaction gatwick_cascade_action = { .handler = gatwick_action, .flags = IRQF_NO_THREAD, .name = "cascade", };
static int pmac_pic_host_match(struct irq_domain *h, struct device_node *node, enum irq_domain_bus_token bus_token) { /* We match all, we don't always have a node anyway */ return 1; }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt1458.33%125.00%
Paul Mackerras520.83%125.00%
Marc Zyngier416.67%125.00%
Grant C. Likely14.17%125.00%
Total24100.00%4100.00%


static int pmac_pic_host_map(struct irq_domain *h, unsigned int virq, irq_hw_number_t hw) { if (hw >= max_irqs) return -EINVAL; /* Mark level interrupts, set delayed disable for edge ones and set * handlers */ irq_set_status_flags(virq, IRQ_LEVEL); irq_set_chip_and_handler(virq, &pmac_pic, handle_level_irq); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt3673.47%233.33%
Thomas Gleixner612.24%233.33%
Paul Mackerras612.24%116.67%
Grant C. Likely12.04%116.67%
Total49100.00%6100.00%

static const struct irq_domain_ops pmac_pic_host_ops = { .match = pmac_pic_host_match, .map = pmac_pic_host_map, .xlate = irq_domain_xlate_onecell, };
static void __init pmac_pic_probe_oldstyle(void) { int i; struct device_node *master = NULL; struct device_node *slave = NULL; u8 __iomem *addr; struct resource r; /* Set our get_irq function */ ppc_md.get_irq = pmac_pic_get_irq; /* * Find the interrupt controller type & node */ if ((master = of_find_node_by_name(NULL, "gc")) != NULL) { max_irqs = max_real_irqs = 32; } else if ((master = of_find_node_by_name(NULL, "ohare")) != NULL) { max_irqs = max_real_irqs = 32; /* We might have a second cascaded ohare */ slave = of_find_node_by_name(NULL, "pci106b,7"); if (slave) max_irqs = 64; } else if ((master = of_find_node_by_name(NULL, "mac-io")) != NULL) { max_irqs = max_real_irqs = 64; /* We might have a second cascaded heathrow */ /* Compensate for of_node_put() in of_find_node_by_name() */ of_node_get(master); slave = of_find_node_by_name(master, "mac-io"); /* Check ordering of master & slave */ if (of_device_is_compatible(master, "gatwick")) { struct device_node *tmp; BUG_ON(slave == NULL); tmp = master; master = slave; slave = tmp; } /* We found a slave */ if (slave) max_irqs = 128; } BUG_ON(master == NULL); /* * Allocate an irq host */ pmac_pic_host = irq_domain_add_linear(master, max_irqs, &pmac_pic_host_ops, NULL); BUG_ON(pmac_pic_host == NULL); irq_set_default_host(pmac_pic_host); /* Get addresses of first controller if we have a node for it */ BUG_ON(of_address_to_resource(master, 0, &r)); /* Map interrupts of primary controller */ addr = (u8 __iomem *) ioremap(r.start, 0x40); i = 0; pmac_irq_hw[i++] = (volatile struct pmac_irq_hw __iomem *) (addr + 0x20); if (max_real_irqs > 32) pmac_irq_hw[i++] = (volatile struct pmac_irq_hw __iomem *) (addr + 0x10); of_node_put(master); printk(KERN_INFO "irq: Found primary Apple PIC %pOF for %d irqs\n", master, max_real_irqs); /* Map interrupts of cascaded controller */ if (slave && !of_address_to_resource(slave, 0, &r)) { addr = (u8 __iomem *)ioremap(r.start, 0x40); pmac_irq_hw[i++] = (volatile struct pmac_irq_hw __iomem *) (addr + 0x20); if (max_irqs > 64) pmac_irq_hw[i++] = (volatile struct pmac_irq_hw __iomem *) (addr + 0x10); pmac_irq_cascade = irq_of_parse_and_map(slave, 0); printk(KERN_INFO "irq: Found slave Apple PIC %pOF for %d irqs" " cascade: %d\n", slave, max_irqs - max_real_irqs, pmac_irq_cascade); } of_node_put(slave); /* Disable all interrupts in all controllers */ for (i = 0; i * 32 < max_irqs; ++i) out_le32(&pmac_irq_hw[i]->enable, 0); /* Hookup cascade irq */ if (slave && pmac_irq_cascade) setup_irq(pmac_irq_cascade, &gatwick_cascade_action); printk(KERN_INFO "irq: System has %d possible interrupts\n", max_irqs); #ifdef CONFIG_XMON setup_irq(irq_create_mapping(NULL, 20), &xmon_action); #endif }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt35671.49%327.27%
Paul Mackerras12925.90%327.27%
Geert Uytterhoeven61.20%19.09%
Michael Ellerman20.40%19.09%
Rob Herring20.40%19.09%
Grant C. Likely20.40%19.09%
Stephen Rothwell10.20%19.09%
Total498100.00%11100.00%


int of_irq_parse_oldworld(struct device_node *device, int index, struct of_phandle_args *out_irq) { const u32 *ints = NULL; int intlen; /* * Old machines just have a list of interrupt numbers * and no interrupt-controller nodes. We also have dodgy * cases where the APPL,interrupts property is completely * missing behind pci-pci bridges and we have to get it * from the parent (the bridge itself, as apple just wired * everything together on these) */ while (device) { ints = of_get_property(device, "AAPL,interrupts", &intlen); if (ints != NULL) break; device = device->parent; if (device && strcmp(device->type, "pci") != 0) break; } if (ints == NULL) return -EINVAL; intlen /= sizeof(u32); if (index >= intlen) return -EINVAL; out_irq->np = NULL; out_irq->args[0] = ints[index]; out_irq->args_count = 1; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Grant C. Likely130100.00%3100.00%
Total130100.00%3100.00%

#endif /* CONFIG_PPC32 */
static void __init pmac_pic_setup_mpic_nmi(struct mpic *mpic) { #if defined(CONFIG_XMON) && defined(CONFIG_PPC32) struct device_node* pswitch; int nmi_irq; pswitch = of_find_node_by_name(NULL, "programmer-switch"); if (pswitch) { nmi_irq = irq_of_parse_and_map(pswitch, 0); if (nmi_irq) { mpic_irq_set_priority(nmi_irq, 9); setup_irq(nmi_irq, &xmon_action); } of_node_put(pswitch); } #endif /* defined(CONFIG_XMON) && defined(CONFIG_PPC32) */ }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt84100.00%2100.00%
Total84100.00%2100.00%


static struct mpic * __init pmac_setup_one_mpic(struct device_node *np, int master) { const char *name = master ? " MPIC 1 " : " MPIC 2 "; struct mpic *mpic; unsigned int flags = master ? 0 : MPIC_SECONDARY; pmac_call_feature(PMAC_FTR_ENABLE_MPIC, np, 0, 0); if (of_get_property(np, "big-endian", NULL)) flags |= MPIC_BIG_ENDIAN; /* Primary Big Endian means HT interrupts. This is quite dodgy * but works until I find a better way */ if (master && (flags & MPIC_BIG_ENDIAN)) flags |= MPIC_U3_HT_IRQS; mpic = mpic_alloc(np, 0, flags, 0, 0, name); if (mpic == NULL) return NULL; mpic_init(mpic); return mpic; }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt11395.76%233.33%
Kyle Moffett32.54%233.33%
Michael Ellerman10.85%116.67%
Stephen Rothwell10.85%116.67%
Total118100.00%6100.00%


static int __init pmac_pic_probe_mpic(void) { struct mpic *mpic1, *mpic2; struct device_node *np, *master = NULL, *slave = NULL; /* We can have up to 2 MPICs cascaded */ for (np = NULL; (np = of_find_node_by_type(np, "open-pic")) != NULL;) { if (master == NULL && of_get_property(np, "interrupts", NULL) == NULL) master = of_node_get(np); else if (slave == NULL) slave = of_node_get(np); if (master && slave) break; } /* Check for bogus setups */ if (master == NULL && slave != NULL) { master = slave; slave = NULL; } /* Not found, default to good old pmac pic */ if (master == NULL) return -ENODEV; /* Set master handler */ ppc_md.get_irq = mpic_get_irq; /* Setup master */ mpic1 = pmac_setup_one_mpic(master, 1); BUG_ON(mpic1 == NULL); /* Install NMI if any */ pmac_pic_setup_mpic_nmi(mpic1); of_node_put(master); /* Set up a cascaded controller, if present */ if (slave) { mpic2 = pmac_setup_one_mpic(slave, 0); if (mpic2 == NULL) printk(KERN_ERR "Failed to setup slave MPIC\n"); of_node_put(slave); } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt19093.60%350.00%
Paul Mackerras115.42%116.67%
Kyle Moffett10.49%116.67%
Stephen Rothwell10.49%116.67%
Total203100.00%6100.00%


void __init pmac_pic_init(void) { /* We configure the OF parsing based on our oldworld vs. newworld * platform type and whether we were booted by BootX. */ #ifdef CONFIG_PPC32 if (!pmac_newworld) of_irq_workarounds |= OF_IMAP_OLDWORLD_MAC; if (of_get_property(of_chosen, "linux,bootx", NULL) != NULL) of_irq_workarounds |= OF_IMAP_NO_PHANDLE; /* If we don't have phandles on a newworld, then try to locate a * default interrupt controller (happens when booting with BootX). * We do a first match here, hopefully, that only ever happens on * machines with one controller. */ if (pmac_newworld && (of_irq_workarounds & OF_IMAP_NO_PHANDLE)) { struct device_node *np; for_each_node_with_property(np, "interrupt-controller") { /* Skip /chosen/interrupt-controller */ if (strcmp(np->name, "chosen") == 0) continue; /* It seems like at least one person wants * to use BootX on a machine with an AppleKiwi * controller which happens to pretend to be an * interrupt controller too. */ if (strcmp(np->name, "AppleKiwi") == 0) continue; /* I think we found one ! */ of_irq_dflt_pic = np; break; } } #endif /* CONFIG_PPC32 */ /* We first try to detect Apple's new Core99 chipset, since mac-io * is quite different on those machines and contains an IBM MPIC2. */ if (pmac_pic_probe_mpic() == 0) return; #ifdef CONFIG_PPC32 pmac_pic_probe_oldstyle(); #endif }

Contributors

PersonTokensPropCommitsCommitProp
Grant C. Likely6453.33%116.67%
Benjamin Herrenschmidt4537.50%233.33%
Paul Mackerras97.50%116.67%
Stephen Rothwell10.83%116.67%
Adam Buchbinder10.83%116.67%
Total120100.00%6100.00%

#if defined(CONFIG_PM) && defined(CONFIG_PPC32) /* * These procedures are used in implementing sleep on the powerbooks. * sleep_save_intrs() saves the states of all interrupt enables * and disables all interrupts except for the nominated one. * sleep_restore_intrs() restores the states of all interrupt enables. */ unsigned long sleep_save_mask[2]; /* This used to be passed by the PMU driver but that link got * broken with the new driver model. We use this tweak for now... * We really want to do things differently though... */
static int pmacpic_find_viaint(void) { int viaint = -1; #ifdef CONFIG_ADB_PMU struct device_node *np; if (pmu_get_model() != PMU_OHARE_BASED) goto not_found; np = of_find_node_by_name(NULL, "via-pmu"); if (np == NULL) goto not_found; viaint = irq_of_parse_and_map(np, 0); not_found: #endif /* CONFIG_ADB_PMU */ return viaint; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras6191.04%133.33%
Benjamin Herrenschmidt45.97%133.33%
Tony Breeds22.99%133.33%
Total67100.00%3100.00%


static int pmacpic_suspend(void) { int viaint = pmacpic_find_viaint(); sleep_save_mask[0] = ppc_cached_irq_mask[0]; sleep_save_mask[1] = ppc_cached_irq_mask[1]; ppc_cached_irq_mask[0] = 0; ppc_cached_irq_mask[1] = 0; if (viaint > 0) set_bit(viaint, ppc_cached_irq_mask); out_le32(&pmac_irq_hw[0]->enable, ppc_cached_irq_mask[0]); if (max_real_irqs > 32) out_le32(&pmac_irq_hw[1]->enable, ppc_cached_irq_mask[1]); (void)in_le32(&pmac_irq_hw[0]->event); /* make sure mask gets to controller before we return to caller */ mb(); (void)in_le32(&pmac_irq_hw[0]->enable); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras13399.25%150.00%
Rafael J. Wysocki10.75%150.00%
Total134100.00%2100.00%


static void pmacpic_resume(void) { int i; out_le32(&pmac_irq_hw[0]->enable, 0); if (max_real_irqs > 32) out_le32(&pmac_irq_hw[1]->enable, 0); mb(); for (i = 0; i < max_real_irqs; ++i) if (test_bit(i, sleep_save_mask)) pmac_unmask_irq(irq_get_irq_data(i)); }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras7193.42%133.33%
Lennert Buytenhek33.95%133.33%
Rafael J. Wysocki22.63%133.33%
Total76100.00%3100.00%

static struct syscore_ops pmacpic_syscore_ops = { .suspend = pmacpic_suspend, .resume = pmacpic_resume, };
static int __init init_pmacpic_syscore(void) { if (pmac_irq_hw[0]) register_syscore_ops(&pmacpic_syscore_ops); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Paul Mackerras1560.00%133.33%
Benjamin Herrenschmidt728.00%133.33%
Rafael J. Wysocki312.00%133.33%
Total25100.00%3100.00%

machine_subsys_initcall(powermac, init_pmacpic_syscore); #endif /* CONFIG_PM && CONFIG_PPC32 */

Overall Contributors

PersonTokensPropCommitsCommitProp
Benjamin Herrenschmidt125044.44%612.00%
Paul Mackerras118742.20%48.00%
Grant C. Likely2468.75%1020.00%
Lennert Buytenhek401.42%12.00%
Thomas Gleixner281.00%510.00%
Rafael J. Wysocki140.50%12.00%
Michael Ellerman110.39%612.00%
Stephen Rothwell60.21%36.00%
John Ogness60.21%12.00%
Geert Uytterhoeven60.21%12.00%
Marc Zyngier40.14%12.00%
Kyle Moffett40.14%36.00%
Milton D. Miller II30.11%24.00%
Rob Herring20.07%12.00%
Tony Breeds20.07%12.00%
Olaf Hering10.04%12.00%
Kay Sievers10.04%12.00%
Anton Blanchard10.04%12.00%
Adam Buchbinder10.04%12.00%
Total2813100.00%50100.00%
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