| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Kumar Gala | 1871 | 44.81% | 3 | 7.69% |
| Kim Phillips | 694 | 16.62% | 2 | 5.13% |
| Li Yang | 638 | 15.28% | 2 | 5.13% |
| Scott Wood | 502 | 12.02% | 2 | 5.13% |
| John Rigby | 274 | 6.56% | 1 | 2.56% |
| Lennert Buytenhek | 49 | 1.17% | 1 | 2.56% |
| Thomas Gleixner | 34 | 0.81% | 6 | 15.38% |
| Michael Ellerman | 25 | 0.60% | 3 | 7.69% |
| Sebastian Andrzej Siewior | 22 | 0.53% | 1 | 2.56% |
| Marc Zyngier | 14 | 0.34% | 2 | 5.13% |
| Rafael J. Wysocki | 11 | 0.26% | 1 | 2.56% |
| Grant C. Likely | 11 | 0.26% | 4 | 10.26% |
| Julia Lawall | 7 | 0.17% | 1 | 2.56% |
| Christophe Leroy | 6 | 0.14% | 2 | 5.13% |
| Joe Perches | 4 | 0.10% | 1 | 2.56% |
| Anton Vorontsov | 4 | 0.10% | 1 | 2.56% |
| Olaf Hering | 4 | 0.10% | 2 | 5.13% |
| Anton Blanchard | 2 | 0.05% | 1 | 2.56% |
| Michael Neuling | 1 | 0.02% | 1 | 2.56% |
| Krzysztof Kozlowski | 1 | 0.02% | 1 | 2.56% |
| Kay Sievers | 1 | 0.02% | 1 | 2.56% |
| Total | 4175 | 39 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * arch/powerpc/sysdev/ipic.c * * IPIC routines implementations. * * Copyright 2005 Freescale Semiconductor, Inc. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/reboot.h> #include <linux/slab.h> #include <linux/stddef.h> #include <linux/sched.h> #include <linux/signal.h> #include <linux/syscore_ops.h> #include <linux/device.h> #include <linux/spinlock.h> #include <linux/fsl_devices.h> #include <asm/irq.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/ipic.h> #include "ipic.h" static struct ipic * primary_ipic; static struct irq_chip ipic_level_irq_chip, ipic_edge_irq_chip; static DEFINE_RAW_SPINLOCK(ipic_lock); static struct ipic_info ipic_info[] = { [1] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_C, .force = IPIC_SIFCR_H, .bit = 16, .prio_mask = 0, }, [2] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_C, .force = IPIC_SIFCR_H, .bit = 17, .prio_mask = 1, }, [3] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_C, .force = IPIC_SIFCR_H, .bit = 18, .prio_mask = 2, }, [4] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_C, .force = IPIC_SIFCR_H, .bit = 19, .prio_mask = 3, }, [5] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_C, .force = IPIC_SIFCR_H, .bit = 20, .prio_mask = 4, }, [6] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_C, .force = IPIC_SIFCR_H, .bit = 21, .prio_mask = 5, }, [7] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_C, .force = IPIC_SIFCR_H, .bit = 22, .prio_mask = 6, }, [8] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_C, .force = IPIC_SIFCR_H, .bit = 23, .prio_mask = 7, }, [9] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_D, .force = IPIC_SIFCR_H, .bit = 24, .prio_mask = 0, }, [10] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_D, .force = IPIC_SIFCR_H, .bit = 25, .prio_mask = 1, }, [11] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_D, .force = IPIC_SIFCR_H, .bit = 26, .prio_mask = 2, }, [12] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_D, .force = IPIC_SIFCR_H, .bit = 27, .prio_mask = 3, }, [13] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_D, .force = IPIC_SIFCR_H, .bit = 28, .prio_mask = 4, }, [14] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_D, .force = IPIC_SIFCR_H, .bit = 29, .prio_mask = 5, }, [15] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_D, .force = IPIC_SIFCR_H, .bit = 30, .prio_mask = 6, }, [16] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_D, .force = IPIC_SIFCR_H, .bit = 31, .prio_mask = 7, }, [17] = { .ack = IPIC_SEPNR, .mask = IPIC_SEMSR, .prio = IPIC_SMPRR_A, .force = IPIC_SEFCR, .bit = 1, .prio_mask = 5, }, [18] = { .ack = IPIC_SEPNR, .mask = IPIC_SEMSR, .prio = IPIC_SMPRR_A, .force = IPIC_SEFCR, .bit = 2, .prio_mask = 6, }, [19] = { .ack = IPIC_SEPNR, .mask = IPIC_SEMSR, .prio = IPIC_SMPRR_A, .force = IPIC_SEFCR, .bit = 3, .prio_mask = 7, }, [20] = { .ack = IPIC_SEPNR, .mask = IPIC_SEMSR, .prio = IPIC_SMPRR_B, .force = IPIC_SEFCR, .bit = 4, .prio_mask = 4, }, [21] = { .ack = IPIC_SEPNR, .mask = IPIC_SEMSR, .prio = IPIC_SMPRR_B, .force = IPIC_SEFCR, .bit = 5, .prio_mask = 5, }, [22] = { .ack = IPIC_SEPNR, .mask = IPIC_SEMSR, .prio = IPIC_SMPRR_B, .force = IPIC_SEFCR, .bit = 6, .prio_mask = 6, }, [23] = { .ack = IPIC_SEPNR, .mask = IPIC_SEMSR, .prio = IPIC_SMPRR_B, .force = IPIC_SEFCR, .bit = 7, .prio_mask = 7, }, [32] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_A, .force = IPIC_SIFCR_H, .bit = 0, .prio_mask = 0, }, [33] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_A, .force = IPIC_SIFCR_H, .bit = 1, .prio_mask = 1, }, [34] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_A, .force = IPIC_SIFCR_H, .bit = 2, .prio_mask = 2, }, [35] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_A, .force = IPIC_SIFCR_H, .bit = 3, .prio_mask = 3, }, [36] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_A, .force = IPIC_SIFCR_H, .bit = 4, .prio_mask = 4, }, [37] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_A, .force = IPIC_SIFCR_H, .bit = 5, .prio_mask = 5, }, [38] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_A, .force = IPIC_SIFCR_H, .bit = 6, .prio_mask = 6, }, [39] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_A, .force = IPIC_SIFCR_H, .bit = 7, .prio_mask = 7, }, [40] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_B, .force = IPIC_SIFCR_H, .bit = 8, .prio_mask = 0, }, [41] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_B, .force = IPIC_SIFCR_H, .bit = 9, .prio_mask = 1, }, [42] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_B, .force = IPIC_SIFCR_H, .bit = 10, .prio_mask = 2, }, [43] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_B, .force = IPIC_SIFCR_H, .bit = 11, .prio_mask = 3, }, [44] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_B, .force = IPIC_SIFCR_H, .bit = 12, .prio_mask = 4, }, [45] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_B, .force = IPIC_SIFCR_H, .bit = 13, .prio_mask = 5, }, [46] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_B, .force = IPIC_SIFCR_H, .bit = 14, .prio_mask = 6, }, [47] = { .mask = IPIC_SIMSR_H, .prio = IPIC_SIPRR_B, .force = IPIC_SIFCR_H, .bit = 15, .prio_mask = 7, }, [48] = { .ack = IPIC_SEPNR, .mask = IPIC_SEMSR, .prio = IPIC_SMPRR_A, .force = IPIC_SEFCR, .bit = 0, .prio_mask = 4, }, [64] = { .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_A, .force = IPIC_SIFCR_L, .bit = 0, .prio_mask = 0, }, [65] = { .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_A, .force = IPIC_SIFCR_L, .bit = 1, .prio_mask = 1, }, [66] = { .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_A, .force = IPIC_SIFCR_L, .bit = 2, .prio_mask = 2, }, [67] = { .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_A, .force = IPIC_SIFCR_L, .bit = 3, .prio_mask = 3, }, [68] = { .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_B, .force = IPIC_SIFCR_L, .bit = 4, .prio_mask = 0, }, [69] = { .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_B, .force = IPIC_SIFCR_L, .bit = 5, .prio_mask = 1, }, [70] = { .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_B, .force = IPIC_SIFCR_L, .bit = 6, .prio_mask = 2, }, [71] = { .mask = IPIC_SIMSR_L, .prio = IPIC_SMPRR_B, .force = IPIC_SIFCR_L, .bit = 7, .prio_mask = 3, }, [72] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 8, }, [73] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 9, }, [74] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 10, }, [75] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 11, }, [76] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 12, }, [77] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 13, }, [78] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 14, }, [79] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 15, }, [80] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 16, }, [81] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 17, }, [82] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 18, }, [83] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 19, }, [84] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 20, }, [85] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 21, }, [86] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 22, }, [87] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 23, }, [88] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 24, }, [89] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 25, }, [90] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 26, }, [91] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 27, }, [94] = { .mask = IPIC_SIMSR_L, .prio = 0, .force = IPIC_SIFCR_L, .bit = 30, }, }; static inline u32 ipic_read(volatile u32 __iomem *base, unsigned int reg) { return in_be32(base + (reg >> 2)); } static inline void ipic_write(volatile u32 __iomem *base, unsigned int reg, u32 value) { out_be32(base + (reg >> 2), value); } static inline struct ipic * ipic_from_irq(unsigned int virq) { return primary_ipic; } static void ipic_unmask_irq(struct irq_data *d) { struct ipic *ipic = ipic_from_irq(d->irq); unsigned int src = irqd_to_hwirq(d); unsigned long flags; u32 temp; raw_spin_lock_irqsave(&ipic_lock, flags); temp = ipic_read(ipic->regs, ipic_info[src].mask); temp |= (1 << (31 - ipic_info[src].bit)); ipic_write(ipic->regs, ipic_info[src].mask, temp); raw_spin_unlock_irqrestore(&ipic_lock, flags); } static void ipic_mask_irq(struct irq_data *d) { struct ipic *ipic = ipic_from_irq(d->irq); unsigned int src = irqd_to_hwirq(d); unsigned long flags; u32 temp; raw_spin_lock_irqsave(&ipic_lock, flags); temp = ipic_read(ipic->regs, ipic_info[src].mask); temp &= ~(1 << (31 - ipic_info[src].bit)); ipic_write(ipic->regs, ipic_info[src].mask, temp); /* mb() can't guarantee that masking is finished. But it does finish * for nearly all cases. */ mb(); raw_spin_unlock_irqrestore(&ipic_lock, flags); } static void ipic_ack_irq(struct irq_data *d) { struct ipic *ipic = ipic_from_irq(d->irq); unsigned int src = irqd_to_hwirq(d); unsigned long flags; u32 temp; raw_spin_lock_irqsave(&ipic_lock, flags); temp = 1 << (31 - ipic_info[src].bit); ipic_write(ipic->regs, ipic_info[src].ack, temp); /* mb() can't guarantee that ack is finished. But it does finish * for nearly all cases. */ mb(); raw_spin_unlock_irqrestore(&ipic_lock, flags); } static void ipic_mask_irq_and_ack(struct irq_data *d) { struct ipic *ipic = ipic_from_irq(d->irq); unsigned int src = irqd_to_hwirq(d); unsigned long flags; u32 temp; raw_spin_lock_irqsave(&ipic_lock, flags); temp = ipic_read(ipic->regs, ipic_info[src].mask); temp &= ~(1 << (31 - ipic_info[src].bit)); ipic_write(ipic->regs, ipic_info[src].mask, temp); temp = 1 << (31 - ipic_info[src].bit); ipic_write(ipic->regs, ipic_info[src].ack, temp); /* mb() can't guarantee that ack is finished. But it does finish * for nearly all cases. */ mb(); raw_spin_unlock_irqrestore(&ipic_lock, flags); } static int ipic_set_irq_type(struct irq_data *d, unsigned int flow_type) { struct ipic *ipic = ipic_from_irq(d->irq); unsigned int src = irqd_to_hwirq(d); unsigned int vold, vnew, edibit; if (flow_type == IRQ_TYPE_NONE) flow_type = IRQ_TYPE_LEVEL_LOW; /* ipic supports only low assertion and high-to-low change senses */ if (!(flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING))) { printk(KERN_ERR "ipic: sense type 0x%x not supported\n", flow_type); return -EINVAL; } /* ipic supports only edge mode on external interrupts */ if ((flow_type & IRQ_TYPE_EDGE_FALLING) && !ipic_info[src].ack) { printk(KERN_ERR "ipic: edge sense not supported on internal " "interrupts\n"); return -EINVAL; } irqd_set_trigger_type(d, flow_type); if (flow_type & IRQ_TYPE_LEVEL_LOW) { irq_set_handler_locked(d, handle_level_irq); d->chip = &ipic_level_irq_chip; } else { irq_set_handler_locked(d, handle_edge_irq); d->chip = &ipic_edge_irq_chip; } /* only EXT IRQ senses are programmable on ipic * internal IRQ senses are LEVEL_LOW */ if (src == IPIC_IRQ_EXT0) edibit = 15; else if (src >= IPIC_IRQ_EXT1 && src <= IPIC_IRQ_EXT7) edibit = (14 - (src - IPIC_IRQ_EXT1)); else return (flow_type & IRQ_TYPE_LEVEL_LOW) ? 0 : -EINVAL; vold = ipic_read(ipic->regs, IPIC_SECNR); if ((flow_type & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_FALLING) { vnew = vold | (1 << edibit); } else { vnew = vold & ~(1 << edibit); } if (vold != vnew) ipic_write(ipic->regs, IPIC_SECNR, vnew); return IRQ_SET_MASK_OK_NOCOPY; } /* level interrupts and edge interrupts have different ack operations */ static struct irq_chip ipic_level_irq_chip = { .name = "IPIC", .irq_unmask = ipic_unmask_irq, .irq_mask = ipic_mask_irq, .irq_mask_ack = ipic_mask_irq, .irq_set_type = ipic_set_irq_type, }; static struct irq_chip ipic_edge_irq_chip = { .name = "IPIC", .irq_unmask = ipic_unmask_irq, .irq_mask = ipic_mask_irq, .irq_mask_ack = ipic_mask_irq_and_ack, .irq_ack = ipic_ack_irq, .irq_set_type = ipic_set_irq_type, }; static int ipic_host_match(struct irq_domain *h, struct device_node *node, enum irq_domain_bus_token bus_token) { /* Exact match, unless ipic node is NULL */ struct device_node *of_node = irq_domain_get_of_node(h); return of_node == NULL || of_node == node; } static int ipic_host_map(struct irq_domain *h, unsigned int virq, irq_hw_number_t hw) { struct ipic *ipic = h->host_data; irq_set_chip_data(virq, ipic); irq_set_chip_and_handler(virq, &ipic_level_irq_chip, handle_level_irq); /* Set default irq type */ irq_set_irq_type(virq, IRQ_TYPE_NONE); return 0; } static const struct irq_domain_ops ipic_host_ops = { .match = ipic_host_match, .map = ipic_host_map, .xlate = irq_domain_xlate_onetwocell, }; struct ipic * __init ipic_init(struct device_node *node, unsigned int flags) { struct ipic *ipic; struct resource res; u32 temp = 0, ret; ret = of_address_to_resource(node, 0, &res); if (ret) return NULL; ipic = kzalloc(sizeof(*ipic), GFP_KERNEL); if (ipic == NULL) return NULL; ipic->irqhost = irq_domain_add_linear(node, NR_IPIC_INTS, &ipic_host_ops, ipic); if (ipic->irqhost == NULL) { kfree(ipic); return NULL; } ipic->regs = ioremap(res.start, resource_size(&res)); /* init hw */ ipic_write(ipic->regs, IPIC_SICNR, 0x0); /* default priority scheme is grouped. If spread mode is required * configure SICFR accordingly */ if (flags & IPIC_SPREADMODE_GRP_A) temp |= SICFR_IPSA; if (flags & IPIC_SPREADMODE_GRP_B) temp |= SICFR_IPSB; if (flags & IPIC_SPREADMODE_GRP_C) temp |= SICFR_IPSC; if (flags & IPIC_SPREADMODE_GRP_D) temp |= SICFR_IPSD; if (flags & IPIC_SPREADMODE_MIX_A) temp |= SICFR_MPSA; if (flags & IPIC_SPREADMODE_MIX_B) temp |= SICFR_MPSB; ipic_write(ipic->regs, IPIC_SICFR, temp); /* handle MCP route */ temp = 0; if (flags & IPIC_DISABLE_MCP_OUT) temp = SERCR_MCPR; ipic_write(ipic->regs, IPIC_SERCR, temp); /* handle routing of IRQ0 to MCP */ temp = ipic_read(ipic->regs, IPIC_SEMSR); if (flags & IPIC_IRQ0_MCP) temp |= SEMSR_SIRQ0; else temp &= ~SEMSR_SIRQ0; ipic_write(ipic->regs, IPIC_SEMSR, temp); primary_ipic = ipic; irq_set_default_host(primary_ipic->irqhost); ipic_write(ipic->regs, IPIC_SIMSR_H, 0); ipic_write(ipic->regs, IPIC_SIMSR_L, 0); printk ("IPIC (%d IRQ sources) at %p\n", NR_IPIC_INTS, primary_ipic->regs); return ipic; } void ipic_set_default_priority(void) { ipic_write(primary_ipic->regs, IPIC_SIPRR_A, IPIC_PRIORITY_DEFAULT); ipic_write(primary_ipic->regs, IPIC_SIPRR_B, IPIC_PRIORITY_DEFAULT); ipic_write(primary_ipic->regs, IPIC_SIPRR_C, IPIC_PRIORITY_DEFAULT); ipic_write(primary_ipic->regs, IPIC_SIPRR_D, IPIC_PRIORITY_DEFAULT); ipic_write(primary_ipic->regs, IPIC_SMPRR_A, IPIC_PRIORITY_DEFAULT); ipic_write(primary_ipic->regs, IPIC_SMPRR_B, IPIC_PRIORITY_DEFAULT); } u32 ipic_get_mcp_status(void) { return primary_ipic ? ipic_read(primary_ipic->regs, IPIC_SERSR) : 0; } void ipic_clear_mcp_status(u32 mask) { ipic_write(primary_ipic->regs, IPIC_SERSR, mask); } /* Return an interrupt vector or 0 if no interrupt is pending. */ unsigned int ipic_get_irq(void) { int irq; BUG_ON(primary_ipic == NULL); #define IPIC_SIVCR_VECTOR_MASK 0x7f irq = ipic_read(primary_ipic->regs, IPIC_SIVCR) & IPIC_SIVCR_VECTOR_MASK; if (irq == 0) /* 0 --> no irq is pending */ return 0; return irq_linear_revmap(primary_ipic->irqhost, irq); } #ifdef CONFIG_SUSPEND static struct { u32 sicfr; u32 siprr[2]; u32 simsr[2]; u32 sicnr; u32 smprr[2]; u32 semsr; u32 secnr; u32 sermr; u32 sercr; } ipic_saved_state; static int ipic_suspend(void) { struct ipic *ipic = primary_ipic; ipic_saved_state.sicfr = ipic_read(ipic->regs, IPIC_SICFR); ipic_saved_state.siprr[0] = ipic_read(ipic->regs, IPIC_SIPRR_A); ipic_saved_state.siprr[1] = ipic_read(ipic->regs, IPIC_SIPRR_D); ipic_saved_state.simsr[0] = ipic_read(ipic->regs, IPIC_SIMSR_H); ipic_saved_state.simsr[1] = ipic_read(ipic->regs, IPIC_SIMSR_L); ipic_saved_state.sicnr = ipic_read(ipic->regs, IPIC_SICNR); ipic_saved_state.smprr[0] = ipic_read(ipic->regs, IPIC_SMPRR_A); ipic_saved_state.smprr[1] = ipic_read(ipic->regs, IPIC_SMPRR_B); ipic_saved_state.semsr = ipic_read(ipic->regs, IPIC_SEMSR); ipic_saved_state.secnr = ipic_read(ipic->regs, IPIC_SECNR); ipic_saved_state.sermr = ipic_read(ipic->regs, IPIC_SERMR); ipic_saved_state.sercr = ipic_read(ipic->regs, IPIC_SERCR); if (fsl_deep_sleep()) { /* In deep sleep, make sure there can be no * pending interrupts, as this can cause * problems on 831x. */ ipic_write(ipic->regs, IPIC_SIMSR_H, 0); ipic_write(ipic->regs, IPIC_SIMSR_L, 0); ipic_write(ipic->regs, IPIC_SEMSR, 0); ipic_write(ipic->regs, IPIC_SERMR, 0); } return 0; } static void ipic_resume(void) { struct ipic *ipic = primary_ipic; ipic_write(ipic->regs, IPIC_SICFR, ipic_saved_state.sicfr); ipic_write(ipic->regs, IPIC_SIPRR_A, ipic_saved_state.siprr[0]); ipic_write(ipic->regs, IPIC_SIPRR_D, ipic_saved_state.siprr[1]); ipic_write(ipic->regs, IPIC_SIMSR_H, ipic_saved_state.simsr[0]); ipic_write(ipic->regs, IPIC_SIMSR_L, ipic_saved_state.simsr[1]); ipic_write(ipic->regs, IPIC_SICNR, ipic_saved_state.sicnr); ipic_write(ipic->regs, IPIC_SMPRR_A, ipic_saved_state.smprr[0]); ipic_write(ipic->regs, IPIC_SMPRR_B, ipic_saved_state.smprr[1]); ipic_write(ipic->regs, IPIC_SEMSR, ipic_saved_state.semsr); ipic_write(ipic->regs, IPIC_SECNR, ipic_saved_state.secnr); ipic_write(ipic->regs, IPIC_SERMR, ipic_saved_state.sermr); ipic_write(ipic->regs, IPIC_SERCR, ipic_saved_state.sercr); } #else #define ipic_suspend NULL #define ipic_resume NULL #endif static struct syscore_ops ipic_syscore_ops = { .suspend = ipic_suspend, .resume = ipic_resume, }; static int __init init_ipic_syscore(void) { if (!primary_ipic || !primary_ipic->regs) return -ENODEV; printk(KERN_DEBUG "Registering ipic system core operations\n"); register_syscore_ops(&ipic_syscore_ops); return 0; } subsys_initcall(init_ipic_syscore);
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