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Diffstat (limited to 'arch/mips/sni/rm200.c')
-rw-r--r--arch/mips/sni/rm200.c115
1 files changed, 53 insertions, 62 deletions
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index 5310aa75afa..a046b302623 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -13,6 +13,7 @@
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/io.h>
@@ -47,17 +48,17 @@ static struct platform_device rm200_serial8250_device = {
};
static struct resource rm200_ds1216_rsrc[] = {
- {
- .start = 0x1cd41ffc,
- .end = 0x1cd41fff,
- .flags = IORESOURCE_MEM
- }
+ {
+ .start = 0x1cd41ffc,
+ .end = 0x1cd41fff,
+ .flags = IORESOURCE_MEM
+ }
};
static struct platform_device rm200_ds1216_device = {
- .name = "rtc-ds1216",
- .num_resources = ARRAY_SIZE(rm200_ds1216_rsrc),
- .resource = rm200_ds1216_rsrc
+ .name = "rtc-ds1216",
+ .num_resources = ARRAY_SIZE(rm200_ds1216_rsrc),
+ .resource = rm200_ds1216_rsrc
};
static struct resource snirm_82596_rm200_rsrc[] = {
@@ -87,9 +88,9 @@ static struct resource snirm_82596_rm200_rsrc[] = {
};
static struct platform_device snirm_82596_rm200_pdev = {
- .name = "snirm_82596",
- .num_resources = ARRAY_SIZE(snirm_82596_rm200_rsrc),
- .resource = snirm_82596_rm200_rsrc
+ .name = "snirm_82596",
+ .num_resources = ARRAY_SIZE(snirm_82596_rm200_rsrc),
+ .resource = snirm_82596_rm200_rsrc
};
static struct resource snirm_53c710_rm200_rsrc[] = {
@@ -106,9 +107,9 @@ static struct resource snirm_53c710_rm200_rsrc[] = {
};
static struct platform_device snirm_53c710_rm200_pdev = {
- .name = "snirm_53c710",
- .num_resources = ARRAY_SIZE(snirm_53c710_rm200_rsrc),
- .resource = snirm_53c710_rm200_rsrc
+ .name = "snirm_53c710",
+ .num_resources = ARRAY_SIZE(snirm_53c710_rm200_rsrc),
+ .resource = snirm_53c710_rm200_rsrc
};
static int __init snirm_setup_devinit(void)
@@ -132,10 +133,10 @@ device_initcall(snirm_setup_devinit);
* readb/writeb to access them
*/
-DEFINE_SPINLOCK(sni_rm200_i8259A_lock);
-#define PIC_CMD 0x00
-#define PIC_IMR 0x01
-#define PIC_ISR PIC_CMD
+static DEFINE_RAW_SPINLOCK(sni_rm200_i8259A_lock);
+#define PIC_CMD 0x00
+#define PIC_IMR 0x01
+#define PIC_ISR PIC_CMD
#define PIC_POLL PIC_ISR
#define PIC_OCW3 PIC_ISR
@@ -154,36 +155,34 @@ static __iomem u8 *rm200_pic_slave;
#define cached_master_mask (rm200_cached_irq_mask)
#define cached_slave_mask (rm200_cached_irq_mask >> 8)
-static void sni_rm200_disable_8259A_irq(unsigned int irq)
+static void sni_rm200_disable_8259A_irq(struct irq_data *d)
{
- unsigned int mask;
+ unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE;
unsigned long flags;
- irq -= RM200_I8259A_IRQ_BASE;
mask = 1 << irq;
- spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+ raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
rm200_cached_irq_mask |= mask;
if (irq & 8)
writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
else
writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
- spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+ raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
}
-static void sni_rm200_enable_8259A_irq(unsigned int irq)
+static void sni_rm200_enable_8259A_irq(struct irq_data *d)
{
- unsigned int mask;
+ unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE;
unsigned long flags;
- irq -= RM200_I8259A_IRQ_BASE;
mask = ~(1 << irq);
- spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+ raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
rm200_cached_irq_mask &= mask;
if (irq & 8)
writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
else
writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
- spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+ raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
}
static inline int sni_rm200_i8259A_irq_real(unsigned int irq)
@@ -209,14 +208,13 @@ static inline int sni_rm200_i8259A_irq_real(unsigned int irq)
* first, _then_ send the EOI, and the order of EOI
* to the two 8259s is important!
*/
-void sni_rm200_mask_and_ack_8259A(unsigned int irq)
+void sni_rm200_mask_and_ack_8259A(struct irq_data *d)
{
- unsigned int irqmask;
+ unsigned int irqmask, irq = d->irq - RM200_I8259A_IRQ_BASE;
unsigned long flags;
- irq -= RM200_I8259A_IRQ_BASE;
irqmask = 1 << irq;
- spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+ raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
/*
* Lightweight spurious IRQ detection. We do not want
* to overdo spurious IRQ handling - it's usually a sign
@@ -247,7 +245,7 @@ handle_real_irq:
writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
writeb(0x60+irq, rm200_pic_master + PIC_CMD);
}
- spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+ raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
return;
spurious_8259A_irq:
@@ -284,9 +282,9 @@ spurious_8259A_irq:
static struct irq_chip sni_rm200_i8259A_chip = {
.name = "RM200-XT-PIC",
- .mask = sni_rm200_disable_8259A_irq,
- .unmask = sni_rm200_enable_8259A_irq,
- .mask_ack = sni_rm200_mask_and_ack_8259A,
+ .irq_mask = sni_rm200_disable_8259A_irq,
+ .irq_unmask = sni_rm200_enable_8259A_irq,
+ .irq_mask_ack = sni_rm200_mask_and_ack_8259A,
};
/*
@@ -298,7 +296,7 @@ static inline int sni_rm200_i8259_irq(void)
{
int irq;
- spin_lock(&sni_rm200_i8259A_lock);
+ raw_spin_lock(&sni_rm200_i8259A_lock);
/* Perform an interrupt acknowledge cycle on controller 1. */
writeb(0x0C, rm200_pic_master + PIC_CMD); /* prepare for poll */
@@ -325,7 +323,7 @@ static inline int sni_rm200_i8259_irq(void)
irq = -1;
}
- spin_unlock(&sni_rm200_i8259A_lock);
+ raw_spin_unlock(&sni_rm200_i8259A_lock);
return likely(irq >= 0) ? irq + RM200_I8259A_IRQ_BASE : irq;
}
@@ -334,7 +332,7 @@ void sni_rm200_init_8259A(void)
{
unsigned long flags;
- spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
+ raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
writeb(0xff, rm200_pic_master + PIC_IMR);
writeb(0xff, rm200_pic_slave + PIC_IMR);
@@ -352,14 +350,16 @@ void sni_rm200_init_8259A(void)
writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
- spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
+ raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
}
/*
* IRQ2 is cascade interrupt to second interrupt controller
*/
static struct irqaction sni_rm200_irq2 = {
- no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL
+ .handler = no_action,
+ .name = "cascade",
+ .flags = IRQF_NO_THREAD,
};
static struct resource sni_rm200_pic1_resource = {
@@ -403,7 +403,7 @@ void __init sni_rm200_i8259_irqs(void)
if (!rm200_pic_master)
return;
rm200_pic_slave = ioremap_nocache(0x160000a0, 4);
- if (!rm200_pic_master) {
+ if (!rm200_pic_slave) {
iounmap(rm200_pic_master);
return;
}
@@ -414,46 +414,37 @@ void __init sni_rm200_i8259_irqs(void)
sni_rm200_init_8259A();
for (i = RM200_I8259A_IRQ_BASE; i < RM200_I8259A_IRQ_BASE + 16; i++)
- set_irq_chip_and_handler(i, &sni_rm200_i8259A_chip,
+ irq_set_chip_and_handler(i, &sni_rm200_i8259A_chip,
handle_level_irq);
setup_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, &sni_rm200_irq2);
}
-#define SNI_RM200_INT_STAT_REG CKSEG1ADDR(0xbc000000)
-#define SNI_RM200_INT_ENA_REG CKSEG1ADDR(0xbc080000)
+#define SNI_RM200_INT_STAT_REG CKSEG1ADDR(0xbc000000)
+#define SNI_RM200_INT_ENA_REG CKSEG1ADDR(0xbc080000)
#define SNI_RM200_INT_START 24
#define SNI_RM200_INT_END 28
-static void enable_rm200_irq(unsigned int irq)
+static void enable_rm200_irq(struct irq_data *d)
{
- unsigned int mask = 1 << (irq - SNI_RM200_INT_START);
+ unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START);
*(volatile u8 *)SNI_RM200_INT_ENA_REG &= ~mask;
}
-void disable_rm200_irq(unsigned int irq)
+void disable_rm200_irq(struct irq_data *d)
{
- unsigned int mask = 1 << (irq - SNI_RM200_INT_START);
+ unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START);
*(volatile u8 *)SNI_RM200_INT_ENA_REG |= mask;
}
-void end_rm200_irq(unsigned int irq)
-{
- if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
- enable_rm200_irq(irq);
-}
-
static struct irq_chip rm200_irq_type = {
- .typename = "RM200",
- .ack = disable_rm200_irq,
- .mask = disable_rm200_irq,
- .mask_ack = disable_rm200_irq,
- .unmask = enable_rm200_irq,
- .end = end_rm200_irq,
+ .name = "RM200",
+ .irq_mask = disable_rm200_irq,
+ .irq_unmask = enable_rm200_irq,
};
static void sni_rm200_hwint(void)
@@ -487,7 +478,7 @@ void __init sni_rm200_irq_init(void)
mips_cpu_irq_init();
/* Actually we've got more interrupts to handle ... */
for (i = SNI_RM200_INT_START; i <= SNI_RM200_INT_END; i++)
- set_irq_chip(i, &rm200_irq_type);
+ irq_set_chip_and_handler(i, &rm200_irq_type, handle_level_irq);
sni_hwint = sni_rm200_hwint;
change_c0_status(ST0_IM, IE_IRQ0);
setup_irq(SNI_RM200_INT_START + 0, &sni_rm200_i8259A_irq);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 02:22:09 +0000