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Diffstat (limited to 'arch/powerpc/sysdev/ipic.c')
-rw-r--r--arch/powerpc/sysdev/ipic.c120
1 files changed, 30 insertions, 90 deletions
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index b50f97811c25..290ba8427239 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* arch/powerpc/sysdev/ipic.c
*
* IPIC routines implementations.
*
* Copyright 2005 Freescale Semiconductor, Inc.
- *
- * 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/kernel.h>
#include <linux/init.h>
@@ -20,12 +16,12 @@
#include <linux/signal.h>
#include <linux/syscore_ops.h>
#include <linux/device.h>
-#include <linux/bootmem.h>
#include <linux/spinlock.h>
#include <linux/fsl_devices.h>
+#include <linux/irqdomain.h>
+#include <linux/of_address.h>
#include <asm/irq.h>
#include <asm/io.h>
-#include <asm/prom.h>
#include <asm/ipic.h>
#include "ipic.h"
@@ -316,6 +312,7 @@ static struct ipic_info ipic_info[] = {
.prio_mask = 7,
},
[48] = {
+ .ack = IPIC_SEPNR,
.mask = IPIC_SEMSR,
.prio = IPIC_SMPRR_A,
.force = IPIC_SEFCR,
@@ -625,10 +622,10 @@ static int ipic_set_irq_type(struct irq_data *d, unsigned int flow_type)
irqd_set_trigger_type(d, flow_type);
if (flow_type & IRQ_TYPE_LEVEL_LOW) {
- __irq_set_handler_locked(d->irq, handle_level_irq);
+ irq_set_handler_locked(d, handle_level_irq);
d->chip = &ipic_level_irq_chip;
} else {
- __irq_set_handler_locked(d->irq, handle_edge_irq);
+ irq_set_handler_locked(d, handle_edge_irq);
d->chip = &ipic_edge_irq_chip;
}
@@ -672,10 +669,12 @@ static struct irq_chip ipic_edge_irq_chip = {
.irq_set_type = ipic_set_irq_type,
};
-static int ipic_host_match(struct irq_domain *h, struct device_node *node)
+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 */
- return h->of_node == NULL || h->of_node == node;
+ 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,
@@ -692,7 +691,7 @@ static int ipic_host_map(struct irq_domain *h, unsigned int virq,
return 0;
}
-static struct irq_domain_ops ipic_host_ops = {
+static const struct irq_domain_ops ipic_host_ops = {
.match = ipic_host_match,
.map = ipic_host_map,
.xlate = irq_domain_xlate_onetwocell,
@@ -712,8 +711,9 @@ struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
if (ipic == NULL)
return NULL;
- ipic->irqhost = irq_domain_add_linear(node, NR_IPIC_INTS,
- &ipic_host_ops, ipic);
+ ipic->irqhost = irq_domain_create_linear(of_fwnode_handle(node),
+ NR_IPIC_INTS,
+ &ipic_host_ops, ipic);
if (ipic->irqhost == NULL) {
kfree(ipic);
return NULL;
@@ -758,61 +758,17 @@ struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
ipic_write(ipic->regs, IPIC_SEMSR, temp);
primary_ipic = ipic;
- irq_set_default_host(primary_ipic->irqhost);
+ irq_set_default_domain(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);
+ pr_info("IPIC (%d IRQ sources) at MMIO %pa\n", NR_IPIC_INTS, &res.start);
return ipic;
}
-int ipic_set_priority(unsigned int virq, unsigned int priority)
-{
- struct ipic *ipic = ipic_from_irq(virq);
- unsigned int src = virq_to_hw(virq);
- u32 temp;
-
- if (priority > 7)
- return -EINVAL;
- if (src > 127)
- return -EINVAL;
- if (ipic_info[src].prio == 0)
- return -EINVAL;
-
- temp = ipic_read(ipic->regs, ipic_info[src].prio);
-
- if (priority < 4) {
- temp &= ~(0x7 << (20 + (3 - priority) * 3));
- temp |= ipic_info[src].prio_mask << (20 + (3 - priority) * 3);
- } else {
- temp &= ~(0x7 << (4 + (7 - priority) * 3));
- temp |= ipic_info[src].prio_mask << (4 + (7 - priority) * 3);
- }
-
- ipic_write(ipic->regs, ipic_info[src].prio, temp);
-
- return 0;
-}
-
-void ipic_set_highest_priority(unsigned int virq)
-{
- struct ipic *ipic = ipic_from_irq(virq);
- unsigned int src = virq_to_hw(virq);
- u32 temp;
-
- temp = ipic_read(ipic->regs, IPIC_SICFR);
-
- /* clear and set HPI */
- temp &= 0x7f000000;
- temp |= (src & 0x7f) << 24;
-
- ipic_write(ipic->regs, IPIC_SICFR, temp);
-}
-
-void ipic_set_default_priority(void)
+void __init 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);
@@ -822,37 +778,17 @@ void ipic_set_default_priority(void)
ipic_write(primary_ipic->regs, IPIC_SMPRR_B, IPIC_PRIORITY_DEFAULT);
}
-void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq)
-{
- struct ipic *ipic = primary_ipic;
- u32 temp;
-
- temp = ipic_read(ipic->regs, IPIC_SERMR);
- temp |= (1 << (31 - mcp_irq));
- ipic_write(ipic->regs, IPIC_SERMR, temp);
-}
-
-void ipic_disable_mcp(enum ipic_mcp_irq mcp_irq)
-{
- struct ipic *ipic = primary_ipic;
- u32 temp;
-
- temp = ipic_read(ipic->regs, IPIC_SERMR);
- temp &= (1 << (31 - mcp_irq));
- ipic_write(ipic->regs, IPIC_SERMR, temp);
-}
-
u32 ipic_get_mcp_status(void)
{
- return ipic_read(primary_ipic->regs, IPIC_SERMR);
+ return primary_ipic ? ipic_read(primary_ipic->regs, IPIC_SERSR) : 0;
}
void ipic_clear_mcp_status(u32 mask)
{
- ipic_write(primary_ipic->regs, IPIC_SERMR, mask);
+ ipic_write(primary_ipic->regs, IPIC_SERSR, mask);
}
-/* Return an interrupt vector or NO_IRQ if no interrupt is pending. */
+/* Return an interrupt vector or 0 if no interrupt is pending. */
unsigned int ipic_get_irq(void)
{
int irq;
@@ -863,9 +799,9 @@ unsigned int ipic_get_irq(void)
irq = ipic_read(primary_ipic->regs, IPIC_SIVCR) & IPIC_SIVCR_VECTOR_MASK;
if (irq == 0) /* 0 --> no irq is pending */
- return NO_IRQ;
+ return 0;
- return irq_linear_revmap(primary_ipic->irqhost, irq);
+ return irq_find_mapping(primary_ipic->irqhost, irq);
}
#ifdef CONFIG_SUSPEND
@@ -881,7 +817,7 @@ static struct {
u32 sercr;
} ipic_saved_state;
-static int ipic_suspend(void)
+static int ipic_suspend(void *data)
{
struct ipic *ipic = primary_ipic;
@@ -912,7 +848,7 @@ static int ipic_suspend(void)
return 0;
}
-static void ipic_resume(void)
+static void ipic_resume(void *data)
{
struct ipic *ipic = primary_ipic;
@@ -934,18 +870,22 @@ static void ipic_resume(void)
#define ipic_resume NULL
#endif
-static struct syscore_ops ipic_syscore_ops = {
+static const struct syscore_ops ipic_syscore_ops = {
.suspend = ipic_suspend,
.resume = ipic_resume,
};
+static struct syscore ipic_syscore = {
+ .ops = &ipic_syscore_ops,
+};
+
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);
+ register_syscore(&ipic_syscore);
return 0;
}
generated by cgit (git 2.34.1) at 2025-12-25 04:17:43 +0000