[PATCH 20/21] convert sun3 irq code

zippel
2006-06-23T18:42:52Z

[-- Attachment #1: 0026-M68K-convert-sun3-irq-code.txt --]
[-- Type: text/plain, Size: 10719 bytes --]

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>

---

arch/m68k/sun3/config.c | 8 --
arch/m68k/sun3/sun3ints.c | 208 ++++++-------------------------------------
arch/m68k/sun3x/config.c | 7 -
include/asm-m68k/sun3ints.h | 22 +----
4 files changed, 32 insertions(+), 213 deletions(-)

34f1711015076d8df22cc1d463ece08c377f0806
diff --git a/arch/m68k/sun3/config.c b/arch/m68k/sun3/config.c
index f1ca0df..553c304 100644
--- a/arch/m68k/sun3/config.c
+++ b/arch/m68k/sun3/config.c
@@ -36,7 +36,6 @@ extern char _text, _end;
char sun3_reserved_pmeg[SUN3_PMEGS_NUM];

extern unsigned long sun3_gettimeoffset(void);
-extern int show_sun3_interrupts (struct seq_file *, void *);
extern void sun3_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
extern void sun3_get_model (char* model);
extern void idprom_init (void);
@@ -147,13 +146,6 @@ void __init config_sun3(void)

mach_sched_init = sun3_sched_init;
mach_init_IRQ = sun3_init_IRQ;
- mach_default_handler = &sun3_default_handler;
- mach_request_irq = sun3_request_irq;
- mach_free_irq = sun3_free_irq;
- enable_irq = sun3_enable_irq;
- disable_irq = sun3_disable_irq;
- mach_process_int = sun3_process_int;
- mach_get_irq_list = show_sun3_interrupts;
mach_reset = sun3_reboot;
mach_gettimeoffset = sun3_gettimeoffset;
mach_get_model = sun3_get_model;
diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c
index e62a033..0912435 100644
--- a/arch/m68k/sun3/sun3ints.c
+++ b/arch/m68k/sun3/sun3ints.c
@@ -19,7 +19,6 @@ #include <asm/sun3ints.h>
#include <linux/seq_file.h>

extern void sun3_leds (unsigned char);
-static irqreturn_t sun3_inthandle(int irq, void *dev_id, struct pt_regs *fp);

void sun3_disable_interrupts(void)
{
@@ -40,48 +39,30 @@ int led_pattern[8] = {

volatile unsigned char* sun3_intreg;

-void sun3_insert_irq(irq_node_t **list, irq_node_t *node)
-{
-}
-
-void sun3_delete_irq(irq_node_t **list, void *dev_id)
-{
-}
-
void sun3_enable_irq(unsigned int irq)
{
- *sun3_intreg |= (1<<irq);
+ *sun3_intreg |= (1 << irq);
}

void sun3_disable_irq(unsigned int irq)
{
- *sun3_intreg &= ~(1<<irq);
-}
-
-inline void sun3_do_irq(int irq, struct pt_regs *fp)
-{
- kstat_cpu(0).irqs[SYS_IRQS + irq]++;
- *sun3_intreg &= ~(1<<irq);
- *sun3_intreg |= (1<<irq);
+ *sun3_intreg &= ~(1 << irq);
}

static irqreturn_t sun3_int7(int irq, void *dev_id, struct pt_regs *fp)
{
- sun3_do_irq(irq,fp);
- if(!(kstat_cpu(0).irqs[SYS_IRQS + irq] % 2000))
- sun3_leds(led_pattern[(kstat_cpu(0).irqs[SYS_IRQS+irq]%16000)
- /2000]);
+ *sun3_intreg |= (1 << irq);
+ if (!(kstat_cpu(0).irqs[irq] % 2000))
+ sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 16000) / 2000]);
return IRQ_HANDLED;
}

static irqreturn_t sun3_int5(int irq, void *dev_id, struct pt_regs *fp)
{
- kstat_cpu(0).irqs[SYS_IRQS + irq]++;
#ifdef CONFIG_SUN3
intersil_clear();
#endif
- *sun3_intreg &= ~(1<<irq);
- *sun3_intreg |= (1<<irq);
+ *sun3_intreg |= (1 << irq);
#ifdef CONFIG_SUN3
intersil_clear();
#endif
@@ -89,65 +70,8 @@ #endif
#ifndef CONFIG_SMP
update_process_times(user_mode(fp));
#endif
- if(!(kstat_cpu(0).irqs[SYS_IRQS + irq] % 20))
- sun3_leds(led_pattern[(kstat_cpu(0).irqs[SYS_IRQS+irq]%160)
- /20]);
- return IRQ_HANDLED;
-}
-
-/* handle requested ints, excepting 5 and 7, which always do the same
- thing */
-irqreturn_t (*sun3_default_handler[SYS_IRQS])(int, void *, struct pt_regs *) = {
- [0] = sun3_inthandle,
- [1] = sun3_inthandle,
- [2] = sun3_inthandle,
- [3] = sun3_inthandle,
- [4] = sun3_inthandle,
- [5] = sun3_int5,
- [6] = sun3_inthandle,
- [7] = sun3_int7
-};
-
-static const char *dev_names[SYS_IRQS] = {
- [5] = "timer",
- [7] = "int7 handler"
-};
-static void *dev_ids[SYS_IRQS];
-static irqreturn_t (*sun3_inthandler[SYS_IRQS])(int, void *, struct pt_regs *) = {
- [5] = sun3_int5,
- [7] = sun3_int7
-};
-static irqreturn_t (*sun3_vechandler[SUN3_INT_VECS])(int, void *, struct pt_regs *);
-static void *vec_ids[SUN3_INT_VECS];
-static const char *vec_names[SUN3_INT_VECS];
-static int vec_ints[SUN3_INT_VECS];
-
-
-int show_sun3_interrupts(struct seq_file *p, void *v)
-{
- int i;
-
- for(i = 0; i < (SUN3_INT_VECS-1); i++) {
- if(sun3_vechandler[i] != NULL) {
- seq_printf(p, "vec %3d: %10u %s\n", i+64,
- vec_ints[i],
- (vec_names[i]) ? vec_names[i] :
- "sun3_vechandler");
- }
- }
-
- return 0;
-}
-
-static irqreturn_t sun3_inthandle(int irq, void *dev_id, struct pt_regs *fp)
-{
- if(sun3_inthandler[irq] == NULL)
- panic ("bad interrupt %d received (id %p)\n",irq, dev_id);
-
- kstat_cpu(0).irqs[SYS_IRQS + irq]++;
- *sun3_intreg &= ~(1<<irq);
-
- sun3_inthandler[irq](irq, dev_ids[irq], fp);
+ if (!(kstat_cpu(0).irqs[irq] % 20))
+ sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 160) / 20]);
return IRQ_HANDLED;
}

@@ -157,109 +81,31 @@ static irqreturn_t sun3_vec255(int irq,
return IRQ_HANDLED;
}

-void sun3_init_IRQ(void)
+static void sun3_inthandle(unsigned int irq, struct pt_regs *fp)
{
- int i;
-
- *sun3_intreg = 1;
-
- for(i = 0; i < SYS_IRQS; i++)
- {
- if(dev_names[i])
- cpu_request_irq(i, sun3_default_handler[i], 0,
- dev_names[i], NULL);
- }
-
- for(i = 0; i < 192; i++)
- sun3_vechandler[i] = NULL;
-
- sun3_vechandler[191] = sun3_vec255;
-}
-
-int sun3_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *),
- unsigned long flags, const char *devname, void *dev_id)
-{
-
- if(irq < SYS_IRQS) {
- if(sun3_inthandler[irq] != NULL) {
- printk("sun3_request_irq: request for irq %d -- already taken!\n", irq);
- return 1;
- }
-
- sun3_inthandler[irq] = handler;
- dev_ids[irq] = dev_id;
- dev_names[irq] = devname;
-
- /* setting devname would be nice */
- cpu_request_irq(irq, sun3_default_handler[irq], 0, devname,
- NULL);
-
- return 0;
- } else {
- if((irq >= 64) && (irq <= 255)) {
- int vec;
-
- vec = irq - 64;
- if(sun3_vechandler[vec] != NULL) {
- printk("sun3_request_irq: request for vec %d -- already taken!\n", irq);
- return 1;
- }
-
- sun3_vechandler[vec] = handler;
- vec_ids[vec] = dev_id;
- vec_names[vec] = devname;
- vec_ints[vec] = 0;
-
- return 0;
- }
- }
-
- printk("sun3_request_irq: invalid irq %d\n", irq);
- return 1;
+ *sun3_intreg &= ~(1 << irq);

+ m68k_handle_int(irq, fp);
}

-void sun3_free_irq(unsigned int irq, void *dev_id)
-{
-
- if(irq < SYS_IRQS) {
- if(sun3_inthandler[irq] == NULL)
- panic("sun3_free_int: attempt to free unused irq %d\n", irq);
- if(dev_ids[irq] != dev_id)
- panic("sun3_free_int: incorrect dev_id for irq %d\n", irq);
-
- sun3_inthandler[irq] = NULL;
- return;
- } else if((irq >= 64) && (irq <= 255)) {
- int vec;
-
- vec = irq - 64;
- if(sun3_vechandler[vec] == NULL)
- panic("sun3_free_int: attempt to free unused vector %d\n", irq);
- if(vec_ids[irq] != dev_id)
- panic("sun3_free_int: incorrect dev_id for vec %d\n", irq);
-
- sun3_vechandler[vec] = NULL;
- return;
- } else {
- panic("sun3_free_irq: invalid irq %d\n", irq);
- }
-}
+static struct irq_controller sun3_irq_controller = {
+ .name = "sun3",
+ .lock = SPIN_LOCK_UNLOCKED,
+ .startup = m68k_irq_startup,
+ .shutdown = m68k_irq_shutdown,
+ .enable = sun3_enable_irq,
+ .disable = sun3_disable_irq,
+};

-irqreturn_t sun3_process_int(int irq, struct pt_regs *regs)
+void sun3_init_IRQ(void)
{
+ *sun3_intreg = 1;

- if((irq >= 64) && (irq <= 255)) {
- int vec;
-
- vec = irq - 64;
- if(sun3_vechandler[vec] == NULL)
- panic ("bad interrupt vector %d received\n",irq);
+ m68k_setup_auto_interrupt(sun3_inthandle);
+ m68k_setup_irq_controller(&sun3_irq_controller, IRQ_AUTO_1, 7);
+ m68k_setup_user_interrupt(VEC_USER, 192, NULL);

- vec_ints[vec]++;
- return sun3_vechandler[vec](irq, vec_ids[vec], regs);
- } else {
- panic("sun3_process_int: unable to handle interrupt vector %d\n",
- irq);
- }
+ request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL);
+ request_irq(IRQ_AUTO_7, sun3_int7, 0, "int7", NULL);
+ request_irq(IRQ_USER+127, sun3_vec255, 0, "vec255", NULL);
}
diff --git a/arch/m68k/sun3x/config.c b/arch/m68k/sun3x/config.c
index 0920f5d..52fb174 100644
--- a/arch/m68k/sun3x/config.c
+++ b/arch/m68k/sun3x/config.c
@@ -52,17 +52,10 @@ void __init config_sun3x(void)

sun3x_prom_init();

- mach_get_irq_list = show_sun3_interrupts;
mach_max_dma_address = 0xffffffff; /* we can DMA anywhere, whee */

- mach_default_handler = &sun3_default_handler;
mach_sched_init = sun3x_sched_init;
mach_init_IRQ = sun3_init_IRQ;
- enable_irq = sun3_enable_irq;
- disable_irq = sun3_disable_irq;
- mach_request_irq = sun3_request_irq;
- mach_free_irq = sun3_free_irq;
- mach_process_int = sun3_process_int;

mach_gettimeoffset = sun3x_gettimeoffset;
mach_reset = sun3x_reboot;
diff --git a/include/asm-m68k/sun3ints.h b/include/asm-m68k/sun3ints.h
index bd038fc..de91fa0 100644
--- a/include/asm-m68k/sun3ints.h
+++ b/include/asm-m68k/sun3ints.h
@@ -12,37 +12,25 @@ #ifndef SUN3INTS_H
#define SUN3INTS_H

#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
#include <linux/interrupt.h>
-#include <linux/seq_file.h>
-#include <asm/segment.h>
#include <asm/intersil.h>
#include <asm/oplib.h>
+#include <asm/traps.h>

#define SUN3_INT_VECS 192

void sun3_enable_irq(unsigned int irq);
void sun3_disable_irq(unsigned int irq);
-int sun3_request_irq(unsigned int irq,
- irqreturn_t (*handler)(int, void *, struct pt_regs *),
- unsigned long flags, const char *devname, void *dev_id
- );
extern void sun3_init_IRQ (void);
-extern irqreturn_t (*sun3_default_handler[]) (int, void *, struct pt_regs *);
-extern void sun3_free_irq (unsigned int irq, void *dev_id);
extern void sun3_enable_interrupts (void);
extern void sun3_disable_interrupts (void);
-extern int show_sun3_interrupts(struct seq_file *, void *);
-extern irqreturn_t sun3_process_int(int, struct pt_regs *);
extern volatile unsigned char* sun3_intreg;

/* master list of VME vectors -- don't fuck with this */
-#define SUN3_VEC_FLOPPY 0x40
-#define SUN3_VEC_VMESCSI0 0x40
-#define SUN3_VEC_VMESCSI1 0x41
-#define SUN3_VEC_CG 0xA8
+#define SUN3_VEC_FLOPPY (IRQ_USER+0)
+#define SUN3_VEC_VMESCSI0 (IRQ_USER+0)
+#define SUN3_VEC_VMESCSI1 (IRQ_USER+1)
+#define SUN3_VEC_CG (IRQ_USER+104)

#endif /* SUN3INTS_H */
--
1.3.3

--