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[MIPS] IRQ cleanups

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This is a big irq cleanup patch.

* Use set_irq_chip() to register irq_chip.
* Initialize .mask, .unmask, .mask_ack field.  Functions for these
  method are already exist in most case.
* Do not initialize .startup, .shutdown, .enable, .disable fields if
  default routines provided by irq_chip_set_defaults() were suitable.
* Remove redundant irq_desc initializations.
* Remove unnecessary local_irq_save/local_irq_restore, spin_lock.

With this cleanup, it would be easy to switch to slightly lightwait
irq flow handlers (handle_level_irq(), etc.) instead of __do_IRQ().

Though whole this patch is quite large, changes in each irq_chip are
not quite simple.  Please review and test on your platform.  Thanks.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto 2006-11-02 02:08:36 +09:00 committed by Ralf Baechle
parent c87b6ebaea
commit 1603b5aca4
37 changed files with 290 additions and 1655 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
arch/mips/au1000/common/irq.c
View File

@ -70,7 +70,6 @@ extern irq_cpustat_t irq_stat [NR_CPUS];
extern void mips_timer_interrupt(void);
static void setup_local_irq(unsigned int irq, int type, int int_req);
static unsigned int startup_irq(unsigned int irq);
static void end_irq(unsigned int irq_nr);
static inline void mask_and_ack_level_irq(unsigned int irq_nr);
static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr);
@ -84,20 +83,6 @@ void (*board_init_irq)(void);
static DEFINE_SPINLOCK(irq_lock);
static unsigned int startup_irq(unsigned int irq_nr)
{
local_enable_irq(irq_nr);
return 0;
}
static void shutdown_irq(unsigned int irq_nr)
{
local_disable_irq(irq_nr);
return;
}
inline void local_enable_irq(unsigned int irq_nr)
{
if (irq_nr > AU1000_LAST_INTC0_INT) {
@ -249,41 +234,37 @@ void restore_local_and_enable(int controller, unsigned long mask)
static struct irq_chip rise_edge_irq_type = {
.typename = "Au1000 Rise Edge",
.startup = startup_irq,
.shutdown = shutdown_irq,
.enable = local_enable_irq,
.disable = local_disable_irq,
.ack = mask_and_ack_rise_edge_irq,
.mask = local_disable_irq,
.mask_ack = mask_and_ack_rise_edge_irq,
.unmask = local_enable_irq,
.end = end_irq,
};
static struct irq_chip fall_edge_irq_type = {
.typename = "Au1000 Fall Edge",
.startup = startup_irq,
.shutdown = shutdown_irq,
.enable = local_enable_irq,
.disable = local_disable_irq,
.ack = mask_and_ack_fall_edge_irq,
.mask = local_disable_irq,
.mask_ack = mask_and_ack_fall_edge_irq,
.unmask = local_enable_irq,
.end = end_irq,
};
static struct irq_chip either_edge_irq_type = {
.typename = "Au1000 Rise or Fall Edge",
.startup = startup_irq,
.shutdown = shutdown_irq,
.enable = local_enable_irq,
.disable = local_disable_irq,
.ack = mask_and_ack_either_edge_irq,
.mask = local_disable_irq,
.mask_ack = mask_and_ack_either_edge_irq,
.unmask = local_enable_irq,
.end = end_irq,
};
static struct irq_chip level_irq_type = {
.typename = "Au1000 Level",
.startup = startup_irq,
.shutdown = shutdown_irq,
.enable = local_enable_irq,
.disable = local_disable_irq,
.ack = mask_and_ack_level_irq,
.mask = local_disable_irq,
.mask_ack = mask_and_ack_level_irq,
.unmask = local_enable_irq,
.end = end_irq,
};
@ -328,31 +309,31 @@ static void setup_local_irq(unsigned int irq_nr, int type, int int_req)
au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
au_writel(1<<(irq_nr-32), IC1_CFG0SET);
irq_desc[irq_nr].chip = &rise_edge_irq_type;
set_irq_chip(irq_nr, &rise_edge_irq_type);
break;
case INTC_INT_FALL_EDGE: /* 0:1:0 */
au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
au_writel(1<<(irq_nr-32), IC1_CFG1SET);
au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
irq_desc[irq_nr].chip = &fall_edge_irq_type;
set_irq_chip(irq_nr, &fall_edge_irq_type);
break;
case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
au_writel(1<<(irq_nr-32), IC1_CFG2CLR);
au_writel(1<<(irq_nr-32), IC1_CFG1SET);
au_writel(1<<(irq_nr-32), IC1_CFG0SET);
irq_desc[irq_nr].chip = &either_edge_irq_type;
set_irq_chip(irq_nr, &either_edge_irq_type);
break;
case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
au_writel(1<<(irq_nr-32), IC1_CFG2SET);
au_writel(1<<(irq_nr-32), IC1_CFG1CLR);
au_writel(1<<(irq_nr-32), IC1_CFG0SET);
irq_desc[irq_nr].chip = &level_irq_type;
set_irq_chip(irq_nr, &level_irq_type);
break;
case INTC_INT_LOW_LEVEL: /* 1:1:0 */
au_writel(1<<(irq_nr-32), IC1_CFG2SET);
au_writel(1<<(irq_nr-32), IC1_CFG1SET);
au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
irq_desc[irq_nr].chip = &level_irq_type;
set_irq_chip(irq_nr, &level_irq_type);
break;
case INTC_INT_DISABLED: /* 0:0:0 */
au_writel(1<<(irq_nr-32), IC1_CFG0CLR);
@ -380,31 +361,31 @@ static void setup_local_irq(unsigned int irq_nr, int type, int int_req)
au_writel(1<<irq_nr, IC0_CFG2CLR);
au_writel(1<<irq_nr, IC0_CFG1CLR);
au_writel(1<<irq_nr, IC0_CFG0SET);
irq_desc[irq_nr].chip = &rise_edge_irq_type;
set_irq_chip(irq_nr, &rise_edge_irq_type);
break;
case INTC_INT_FALL_EDGE: /* 0:1:0 */
au_writel(1<<irq_nr, IC0_CFG2CLR);
au_writel(1<<irq_nr, IC0_CFG1SET);
au_writel(1<<irq_nr, IC0_CFG0CLR);
irq_desc[irq_nr].chip = &fall_edge_irq_type;
set_irq_chip(irq_nr, &fall_edge_irq_type);
break;
case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */
au_writel(1<<irq_nr, IC0_CFG2CLR);
au_writel(1<<irq_nr, IC0_CFG1SET);
au_writel(1<<irq_nr, IC0_CFG0SET);
irq_desc[irq_nr].chip = &either_edge_irq_type;
set_irq_chip(irq_nr, &either_edge_irq_type);
break;
case INTC_INT_HIGH_LEVEL: /* 1:0:1 */
au_writel(1<<irq_nr, IC0_CFG2SET);
au_writel(1<<irq_nr, IC0_CFG1CLR);
au_writel(1<<irq_nr, IC0_CFG0SET);
irq_desc[irq_nr].chip = &level_irq_type;
set_irq_chip(irq_nr, &level_irq_type);
break;
case INTC_INT_LOW_LEVEL: /* 1:1:0 */
au_writel(1<<irq_nr, IC0_CFG2SET);
au_writel(1<<irq_nr, IC0_CFG1SET);
au_writel(1<<irq_nr, IC0_CFG0CLR);
irq_desc[irq_nr].chip = &level_irq_type;
set_irq_chip(irq_nr, &level_irq_type);
break;
case INTC_INT_DISABLED: /* 0:0:0 */
au_writel(1<<irq_nr, IC0_CFG0CLR);

23
arch/mips/ddb5xxx/ddb5477/irq_5477.c
View File

@ -53,14 +53,6 @@ vrc5477_irq_disable(unsigned int irq)
ll_vrc5477_irq_disable(irq - vrc5477_irq_base);
}
static unsigned int vrc5477_irq_startup(unsigned int irq)
{
vrc5477_irq_enable(irq);
return 0;
}
#define vrc5477_irq_shutdown vrc5477_irq_disable
static void
vrc5477_irq_ack(unsigned int irq)
{
@ -91,11 +83,10 @@ vrc5477_irq_end(unsigned int irq)
struct irq_chip vrc5477_irq_controller = {
.typename = "vrc5477_irq",
.startup = vrc5477_irq_startup,
.shutdown = vrc5477_irq_shutdown,
.enable = vrc5477_irq_enable,
.disable = vrc5477_irq_disable,
.ack = vrc5477_irq_ack,
.mask = vrc5477_irq_disable,
.mask_ack = vrc5477_irq_ack,
.unmask = vrc5477_irq_enable,
.end = vrc5477_irq_end
};
@ -103,12 +94,8 @@ void __init vrc5477_irq_init(u32 irq_base)
{
u32 i;
for (i= irq_base; i< irq_base+ NUM_5477_IRQ; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &vrc5477_irq_controller;
}
for (i= irq_base; i< irq_base+ NUM_5477_IRQ; i++)
set_irq_chip(i, &vrc5477_irq_controller);
vrc5477_irq_base = irq_base;
}

6
arch/mips/dec/ecc-berr.c
View File

@ -18,7 +18,6 @@
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <asm/addrspace.h>
@ -231,13 +230,10 @@ irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id)
static inline void dec_kn02_be_init(void)
{
volatile u32 *csr = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CSR);
unsigned long flags;
kn0x_erraddr = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_ERRADDR);
kn0x_chksyn = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CHKSYN);
spin_lock_irqsave(&kn02_lock, flags);
/* Preset write-only bits of the Control Register cache. */
cached_kn02_csr = *csr | KN02_CSR_LEDS;
@ -247,8 +243,6 @@ static inline void dec_kn02_be_init(void)
cached_kn02_csr |= KN02_CSR_CORRECT;
*csr = cached_kn02_csr;
iob();
spin_unlock_irqrestore(&kn02_lock, flags);
}
static inline void dec_kn03_be_init(void)

72
arch/mips/dec/ioasic-irq.c
View File

@ -13,7 +13,6 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <asm/dec/ioasic.h>
@ -21,8 +20,6 @@
#include <asm/dec/ioasic_ints.h>
static DEFINE_SPINLOCK(ioasic_lock);
static int ioasic_irq_base;
@ -52,65 +49,31 @@ static inline void clear_ioasic_irq(unsigned int irq)
ioasic_write(IO_REG_SIR, sir);
}
static inline void enable_ioasic_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&ioasic_lock, flags);
unmask_ioasic_irq(irq);
spin_unlock_irqrestore(&ioasic_lock, flags);
}
static inline void disable_ioasic_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&ioasic_lock, flags);
mask_ioasic_irq(irq);
spin_unlock_irqrestore(&ioasic_lock, flags);
}
static inline unsigned int startup_ioasic_irq(unsigned int irq)
{
enable_ioasic_irq(irq);
return 0;
}
#define shutdown_ioasic_irq disable_ioasic_irq
static inline void ack_ioasic_irq(unsigned int irq)
{
spin_lock(&ioasic_lock);
mask_ioasic_irq(irq);
spin_unlock(&ioasic_lock);
fast_iob();
}
static inline void end_ioasic_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
enable_ioasic_irq(irq);
unmask_ioasic_irq(irq);
}
static struct irq_chip ioasic_irq_type = {
.typename = "IO-ASIC",
.startup = startup_ioasic_irq,
.shutdown = shutdown_ioasic_irq,
.enable = enable_ioasic_irq,
.disable = disable_ioasic_irq,
.ack = ack_ioasic_irq,
.mask = mask_ioasic_irq,
.mask_ack = ack_ioasic_irq,
.unmask = unmask_ioasic_irq,
.end = end_ioasic_irq,
};
#define startup_ioasic_dma_irq startup_ioasic_irq
#define unmask_ioasic_dma_irq unmask_ioasic_irq
#define shutdown_ioasic_dma_irq shutdown_ioasic_irq
#define enable_ioasic_dma_irq enable_ioasic_irq
#define disable_ioasic_dma_irq disable_ioasic_irq
#define mask_ioasic_dma_irq mask_ioasic_irq
#define ack_ioasic_dma_irq ack_ioasic_irq
@ -123,11 +86,10 @@ static inline void end_ioasic_dma_irq(unsigned int irq)
static struct irq_chip ioasic_dma_irq_type = {
.typename = "IO-ASIC-DMA",
.startup = startup_ioasic_dma_irq,
.shutdown = shutdown_ioasic_dma_irq,
.enable = enable_ioasic_dma_irq,
.disable = disable_ioasic_dma_irq,
.ack = ack_ioasic_dma_irq,
.mask = mask_ioasic_dma_irq,
.mask_ack = ack_ioasic_dma_irq,
.unmask = unmask_ioasic_dma_irq,
.end = end_ioasic_dma_irq,
};
@ -140,18 +102,10 @@ void __init init_ioasic_irqs(int base)
ioasic_write(IO_REG_SIMR, 0);
fast_iob();
for (i = base; i < base + IO_INR_DMA; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &ioasic_irq_type;
}
for (; i < base + IO_IRQ_LINES; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &ioasic_dma_irq_type;
}
for (i = base; i < base + IO_INR_DMA; i++)
set_irq_chip(i, &ioasic_irq_type);
for (; i < base + IO_IRQ_LINES; i++)
set_irq_chip(i, &ioasic_dma_irq_type);
ioasic_irq_base = base;
}

51
arch/mips/dec/kn02-irq.c
View File

@ -14,7 +14,6 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <asm/dec/kn02.h>
@ -29,7 +28,6 @@
* There is no default value -- it has to be initialized.
*/
u32 cached_kn02_csr;
DEFINE_SPINLOCK(kn02_lock);
static int kn02_irq_base;
@ -53,54 +51,24 @@ static inline void mask_kn02_irq(unsigned int irq)
*csr = cached_kn02_csr;
}
static inline void enable_kn02_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&kn02_lock, flags);
unmask_kn02_irq(irq);
spin_unlock_irqrestore(&kn02_lock, flags);
}
static inline void disable_kn02_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&kn02_lock, flags);
mask_kn02_irq(irq);
spin_unlock_irqrestore(&kn02_lock, flags);
}
static unsigned int startup_kn02_irq(unsigned int irq)
{
enable_kn02_irq(irq);
return 0;
}
#define shutdown_kn02_irq disable_kn02_irq
static void ack_kn02_irq(unsigned int irq)
{
spin_lock(&kn02_lock);
mask_kn02_irq(irq);
spin_unlock(&kn02_lock);
iob();
}
static void end_kn02_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
enable_kn02_irq(irq);
unmask_kn02_irq(irq);
}
static struct irq_chip kn02_irq_type = {
.typename = "KN02-CSR",
.startup = startup_kn02_irq,
.shutdown = shutdown_kn02_irq,
.enable = enable_kn02_irq,
.disable = disable_kn02_irq,
.ack = ack_kn02_irq,
.mask = mask_kn02_irq,
.mask_ack = ack_kn02_irq,
.unmask = unmask_kn02_irq,
.end = end_kn02_irq,
};
@ -109,22 +77,15 @@ void __init init_kn02_irqs(int base)
{
volatile u32 *csr = (volatile u32 *)CKSEG1ADDR(KN02_SLOT_BASE +
KN02_CSR);
unsigned long flags;
int i;
/* Mask interrupts. */
spin_lock_irqsave(&kn02_lock, flags);
cached_kn02_csr &= ~KN02_CSR_IOINTEN;
*csr = cached_kn02_csr;
iob();
spin_unlock_irqrestore(&kn02_lock, flags);
for (i = base; i < base + KN02_IRQ_LINES; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &kn02_irq_type;
}
for (i = base; i < base + KN02_IRQ_LINES; i++)
set_irq_chip(i, &kn02_irq_type);
kn02_irq_base = base;
}

34
arch/mips/emma2rh/common/irq_emma2rh.c
View File

@ -56,22 +56,6 @@ static void emma2rh_irq_disable(unsigned int irq)
ll_emma2rh_irq_disable(irq - emma2rh_irq_base);
}
static unsigned int emma2rh_irq_startup(unsigned int irq)
{
emma2rh_irq_enable(irq);
return 0;
}
#define emma2rh_irq_shutdown emma2rh_irq_disable
static void emma2rh_irq_ack(unsigned int irq)
{
/* disable interrupt - some handler will re-enable the irq
* and if the interrupt is leveled, we will have infinite loop
*/
ll_emma2rh_irq_disable(irq - emma2rh_irq_base);
}
static void emma2rh_irq_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
@ -80,25 +64,19 @@ static void emma2rh_irq_end(unsigned int irq)
struct irq_chip emma2rh_irq_controller = {
.typename = "emma2rh_irq",
.startup = emma2rh_irq_startup,
.shutdown = emma2rh_irq_shutdown,
.enable = emma2rh_irq_enable,
.disable = emma2rh_irq_disable,
.ack = emma2rh_irq_ack,
.ack = emma2rh_irq_disable,
.mask = emma2rh_irq_disable,
.mask_ack = emma2rh_irq_disable,
.unmask = emma2rh_irq_enable,
.end = emma2rh_irq_end,
.set_affinity = NULL /* no affinity stuff for UP */
};
void emma2rh_irq_init(u32 irq_base)
{
u32 i;
for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &emma2rh_irq_controller;
}
for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ; i++)
set_irq_chip(i, &emma2rh_irq_controller);
emma2rh_irq_base = irq_base;
}

55
arch/mips/emma2rh/markeins/irq_markeins.c
View File

@ -48,19 +48,6 @@ static void emma2rh_sw_irq_disable(unsigned int irq)
ll_emma2rh_sw_irq_disable(irq - emma2rh_sw_irq_base);
}
static unsigned int emma2rh_sw_irq_startup(unsigned int irq)
{
emma2rh_sw_irq_enable(irq);
return 0;
}
#define emma2rh_sw_irq_shutdown emma2rh_sw_irq_disable
static void emma2rh_sw_irq_ack(unsigned int irq)
{
ll_emma2rh_sw_irq_disable(irq - emma2rh_sw_irq_base);
}
static void emma2rh_sw_irq_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
@ -69,25 +56,19 @@ static void emma2rh_sw_irq_end(unsigned int irq)
struct irq_chip emma2rh_sw_irq_controller = {
.typename = "emma2rh_sw_irq",
.startup = emma2rh_sw_irq_startup,
.shutdown = emma2rh_sw_irq_shutdown,
.enable = emma2rh_sw_irq_enable,
.disable = emma2rh_sw_irq_disable,
.ack = emma2rh_sw_irq_ack,
.ack = emma2rh_sw_irq_disable,
.mask = emma2rh_sw_irq_disable,
.mask_ack = emma2rh_sw_irq_disable,
.unmask = emma2rh_sw_irq_enable,
.end = emma2rh_sw_irq_end,
.set_affinity = NULL,
};
void emma2rh_sw_irq_init(u32 irq_base)
{
u32 i;
for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ_SW; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 2;
irq_desc[i].chip = &emma2rh_sw_irq_controller;
}
for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ_SW; i++)
set_irq_chip(i, &emma2rh_sw_irq_controller);
emma2rh_sw_irq_base = irq_base;
}
@ -126,14 +107,6 @@ static void emma2rh_gpio_irq_disable(unsigned int irq)
ll_emma2rh_gpio_irq_disable(irq - emma2rh_gpio_irq_base);
}
static unsigned int emma2rh_gpio_irq_startup(unsigned int irq)
{
emma2rh_gpio_irq_enable(irq);
return 0;
}
#define emma2rh_gpio_irq_shutdown emma2rh_gpio_irq_disable
static void emma2rh_gpio_irq_ack(unsigned int irq)
{
irq -= emma2rh_gpio_irq_base;
@ -149,25 +122,19 @@ static void emma2rh_gpio_irq_end(unsigned int irq)
struct irq_chip emma2rh_gpio_irq_controller = {
.typename = "emma2rh_gpio_irq",
.startup = emma2rh_gpio_irq_startup,
.shutdown = emma2rh_gpio_irq_shutdown,
.enable = emma2rh_gpio_irq_enable,
.disable = emma2rh_gpio_irq_disable,
.ack = emma2rh_gpio_irq_ack,
.mask = emma2rh_gpio_irq_disable,
.mask_ack = emma2rh_gpio_irq_ack,
.unmask = emma2rh_gpio_irq_enable,
.end = emma2rh_gpio_irq_end,
.set_affinity = NULL,
};
void emma2rh_gpio_irq_init(u32 irq_base)
{
u32 i;
for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ_GPIO; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 2;
irq_desc[i].chip = &emma2rh_gpio_irq_controller;
}
for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ_GPIO; i++)
set_irq_chip(i, &emma2rh_gpio_irq_controller);
emma2rh_gpio_irq_base = irq_base;
}

40
arch/mips/gt64120/ev64120/irq.c
View File

@ -66,38 +66,21 @@ asmlinkage void plat_irq_dispatch(void)
static void disable_ev64120_irq(unsigned int irq_nr)
{
unsigned long flags;
local_irq_save(flags);
if (irq_nr >= 8) { // All PCI interrupts are on line 5 or 2
clear_c0_status(9 << 10);
} else {
clear_c0_status(1 << (irq_nr + 8));
}
local_irq_restore(flags);
}
static void enable_ev64120_irq(unsigned int irq_nr)
{
unsigned long flags;
local_irq_save(flags);
if (irq_nr >= 8) // All PCI interrupts are on line 5 or 2
set_c0_status(9 << 10);
else
set_c0_status(1 << (irq_nr + 8));
local_irq_restore(flags);
}
static unsigned int startup_ev64120_irq(unsigned int irq)
{
enable_ev64120_irq(irq);
return 0; /* Never anything pending */
}
#define shutdown_ev64120_irq disable_ev64120_irq
#define mask_and_ack_ev64120_irq disable_ev64120_irq
static void end_ev64120_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -106,13 +89,11 @@ static void end_ev64120_irq(unsigned int irq)
static struct irq_chip ev64120_irq_type = {
.typename = "EV64120",
.startup = startup_ev64120_irq,
.shutdown = shutdown_ev64120_irq,
.enable = enable_ev64120_irq,
.disable = disable_ev64120_irq,
.ack = mask_and_ack_ev64120_irq,
.ack = disable_ev64120_irq,
.mask = disable_ev64120_irq,
.mask_ack = disable_ev64120_irq,
.unmask = enable_ev64120_irq,
.end = end_ev64120_irq,
.set_affinity = NULL
};
void gt64120_irq_setup(void)
@ -122,8 +103,6 @@ void gt64120_irq_setup(void)
*/
clear_c0_status(ST0_IM);
local_irq_disable();
/*
* Enable timer. Other interrupts will be enabled as they are
* registered.
@ -133,16 +112,5 @@ void gt64120_irq_setup(void)
void __init arch_init_irq(void)
{
int i;
/* Let's initialize our IRQ descriptors */
for (i = 0; i < NR_IRQS; i++) {
irq_desc[i].status = 0;
irq_desc[i].chip = &no_irq_chip;
irq_desc[i].action = NULL;
irq_desc[i].depth = 0;
spin_lock_init(&irq_desc[i].lock);
}
gt64120_irq_setup();
}

27
arch/mips/jazz/irq.c
View File

@ -28,14 +28,6 @@ static void enable_r4030_irq(unsigned int irq)
spin_unlock_irqrestore(&r4030_lock, flags);
}
static unsigned int startup_r4030_irq(unsigned int irq)
{
enable_r4030_irq(irq);
return 0; /* never anything pending */
}
#define shutdown_r4030_irq disable_r4030_irq
void disable_r4030_irq(unsigned int irq)
{
unsigned int mask = ~(1 << (irq - JAZZ_PARALLEL_IRQ));
@ -47,8 +39,6 @@ void disable_r4030_irq(unsigned int irq)
spin_unlock_irqrestore(&r4030_lock, flags);
}
#define mask_and_ack_r4030_irq disable_r4030_irq
static void end_r4030_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -57,11 +47,10 @@ static void end_r4030_irq(unsigned int irq)
static struct irq_chip r4030_irq_type = {
.typename = "R4030",
.startup = startup_r4030_irq,
.shutdown = shutdown_r4030_irq,
.enable = enable_r4030_irq,
.disable = disable_r4030_irq,
.ack = mask_and_ack_r4030_irq,
.ack = disable_r4030_irq,
.mask = disable_r4030_irq,
.mask_ack = disable_r4030_irq,
.unmask = enable_r4030_irq,
.end = end_r4030_irq,
};
@ -69,12 +58,8 @@ void __init init_r4030_ints(void)
{
int i;
for (i = JAZZ_PARALLEL_IRQ; i <= JAZZ_TIMER_IRQ; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &r4030_irq_type;
}
for (i = JAZZ_PARALLEL_IRQ; i <= JAZZ_TIMER_IRQ; i++)
set_irq_chip(i, &r4030_irq_type);
r4030_write_reg16(JAZZ_IO_IRQ_ENABLE, 0);
r4030_read_reg16(JAZZ_IO_IRQ_SOURCE); /* clear pending IRQs */

32
arch/mips/jmr3927/rbhma3100/irq.c
View File

@ -90,17 +90,6 @@ static unsigned char irc_level[TX3927_NUM_IR] = {
static void jmr3927_irq_disable(unsigned int irq_nr);
static void jmr3927_irq_enable(unsigned int irq_nr);
static DEFINE_SPINLOCK(jmr3927_irq_lock);
static unsigned int jmr3927_irq_startup(unsigned int irq)
{
jmr3927_irq_enable(irq);
return 0;
}
#define jmr3927_irq_shutdown jmr3927_irq_disable
static void jmr3927_irq_ack(unsigned int irq)
{
if (irq == JMR3927_IRQ_IRC_TMR0)
@ -118,9 +107,7 @@ static void jmr3927_irq_end(unsigned int irq)
static void jmr3927_irq_disable(unsigned int irq_nr)
{
struct tb_irq_space* sp;
unsigned long flags;
spin_lock_irqsave(&jmr3927_irq_lock, flags);
for (sp = tb_irq_spaces; sp; sp = sp->next) {
if (sp->start_irqno <= irq_nr &&
irq_nr < sp->start_irqno + sp->nr_irqs) {
@ -130,15 +117,12 @@ static void jmr3927_irq_disable(unsigned int irq_nr)
break;
}
}
spin_unlock_irqrestore(&jmr3927_irq_lock, flags);
}
static void jmr3927_irq_enable(unsigned int irq_nr)
{
struct tb_irq_space* sp;
unsigned long flags;
spin_lock_irqsave(&jmr3927_irq_lock, flags);
for (sp = tb_irq_spaces; sp; sp = sp->next) {
if (sp->start_irqno <= irq_nr &&
irq_nr < sp->start_irqno + sp->nr_irqs) {
@ -148,7 +132,6 @@ static void jmr3927_irq_enable(unsigned int irq_nr)
break;
}
}
spin_unlock_irqrestore(&jmr3927_irq_lock, flags);
}
/*
@ -457,11 +440,10 @@ void __init arch_init_irq(void)
static struct irq_chip jmr3927_irq_controller = {
.typename = "jmr3927_irq",
.startup = jmr3927_irq_startup,
.shutdown = jmr3927_irq_shutdown,
.enable = jmr3927_irq_enable,
.disable = jmr3927_irq_disable,
.ack = jmr3927_irq_ack,
.mask = jmr3927_irq_disable,
.mask_ack = jmr3927_irq_ack,
.unmask = jmr3927_irq_enable,
.end = jmr3927_irq_end,
};
@ -469,12 +451,8 @@ void jmr3927_irq_init(u32 irq_base)
{
u32 i;
for (i= irq_base; i< irq_base + JMR3927_NR_IRQ_IRC + JMR3927_NR_IRQ_IOC; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &jmr3927_irq_controller;
}
for (i= irq_base; i< irq_base + JMR3927_NR_IRQ_IRC + JMR3927_NR_IRQ_IOC; i++)
set_irq_chip(i, &jmr3927_irq_controller);
jmr3927_irq_base = irq_base;
}

21
arch/mips/kernel/i8259.c
View File

@ -40,21 +40,10 @@ static void end_8259A_irq (unsigned int irq)
enable_8259A_irq(irq);
}
#define shutdown_8259A_irq disable_8259A_irq
void mask_and_ack_8259A(unsigned int);
static unsigned int startup_8259A_irq(unsigned int irq)
{
enable_8259A_irq(irq);
return 0; /* never anything pending */
}
static struct irq_chip i8259A_irq_type = {
.typename = "XT-PIC",
.startup = startup_8259A_irq,
.shutdown = shutdown_8259A_irq,
.enable = enable_8259A_irq,
.disable = disable_8259A_irq,
.ack = mask_and_ack_8259A,
@ -120,7 +109,7 @@ int i8259A_irq_pending(unsigned int irq)
void make_8259A_irq(unsigned int irq)
{
disable_irq_nosync(irq);
irq_desc[irq].chip = &i8259A_irq_type;
set_irq_chip(irq, &i8259A_irq_type);
enable_irq(irq);
}
@ -323,12 +312,8 @@ void __init init_i8259_irqs (void)
init_8259A(0);
for (i = 0; i < 16; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &i8259A_irq_type;
}
for (i = 0; i < 16; i++)
set_irq_chip(i, &i8259A_irq_type);
setup_irq(2, &irq2);
}

45
arch/mips/kernel/irq-msc01.c
View File

@ -44,31 +44,6 @@ static inline void unmask_msc_irq(unsigned int irq)
MSCIC_WRITE(MSC01_IC_ENAH, 1<<(irq - irq_base - 32));
}
/*
* Enables the IRQ on SOC-it
*/
static void enable_msc_irq(unsigned int irq)
{
unmask_msc_irq(irq);
}
/*
* Initialize the IRQ on SOC-it
*/
static unsigned int startup_msc_irq(unsigned int irq)
{
unmask_msc_irq(irq);
return 0;
}
/*
* Disables the IRQ on SOC-it
*/
static void disable_msc_irq(unsigned int irq)
{
mask_msc_irq(irq);
}
/*
* Masks and ACKs an IRQ
*/
@ -136,25 +111,21 @@ msc_bind_eic_interrupt (unsigned int irq, unsigned int set)
(irq<<MSC01_IC_RAMW_ADDR_SHF) | (set<<MSC01_IC_RAMW_DATA_SHF));
}
#define shutdown_msc_irq disable_msc_irq
struct irq_chip msc_levelirq_type = {
.typename = "SOC-it-Level",
.startup = startup_msc_irq,
.shutdown = shutdown_msc_irq,
.enable = enable_msc_irq,
.disable = disable_msc_irq,
.ack = level_mask_and_ack_msc_irq,
.mask = mask_msc_irq,
.mask_ack = level_mask_and_ack_msc_irq,
.unmask = unmask_msc_irq,
.end = end_msc_irq,
};
struct irq_chip msc_edgeirq_type = {
.typename = "SOC-it-Edge",
.startup =startup_msc_irq,
.shutdown = shutdown_msc_irq,
.enable = enable_msc_irq,
.disable = disable_msc_irq,
.ack = edge_mask_and_ack_msc_irq,
.mask = mask_msc_irq,
.mask_ack = edge_mask_and_ack_msc_irq,
.unmask = unmask_msc_irq,
.end = end_msc_irq,
};
@ -175,14 +146,14 @@ void __init init_msc_irqs(unsigned int base, msc_irqmap_t *imp, int nirq)
switch (imp->im_type) {
case MSC01_IRQ_EDGE:
irq_desc[base+n].chip = &msc_edgeirq_type;
set_irq_chip(base+n, &msc_edgeirq_type);
if (cpu_has_veic)
MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT);
else
MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT | imp->im_lvl);
break;
case MSC01_IRQ_LEVEL:
irq_desc[base+n].chip = &msc_levelirq_type;
set_irq_chip(base+n, &msc_levelirq_type);
if (cpu_has_veic)
MSCIC_WRITE(MSC01_IC_SUP+n*8, 0);
else

53
arch/mips/kernel/irq-mv6434x.c
View File

@ -66,39 +66,6 @@ static inline void unmask_mv64340_irq(unsigned int irq)
}
}
/*
* Enables the IRQ on Marvell Chip
*/
static void enable_mv64340_irq(unsigned int irq)
{
unmask_mv64340_irq(irq);
}
/*
* Initialize the IRQ on Marvell Chip
*/
static unsigned int startup_mv64340_irq(unsigned int irq)
{
unmask_mv64340_irq(irq);
return 0;
}
/*
* Disables the IRQ on Marvell Chip
*/
static void disable_mv64340_irq(unsigned int irq)
{
mask_mv64340_irq(irq);
}
/*
* Masks and ACKs an IRQ
*/
static void mask_and_ack_mv64340_irq(unsigned int irq)
{
mask_mv64340_irq(irq);
}
/*
* End IRQ processing
*/
@ -133,15 +100,12 @@ void ll_mv64340_irq(void)
do_IRQ(ls1bit32(irq_src_high) + irq_base + 32);
}
#define shutdown_mv64340_irq disable_mv64340_irq
struct irq_chip mv64340_irq_type = {
.typename = "MV-64340",
.startup = startup_mv64340_irq,
.shutdown = shutdown_mv64340_irq,
.enable = enable_mv64340_irq,
.disable = disable_mv64340_irq,
.ack = mask_and_ack_mv64340_irq,
.ack = mask_mv64340_irq,
.mask = mask_mv64340_irq,
.mask_ack = mask_mv64340_irq,
.unmask = unmask_mv64340_irq,
.end = end_mv64340_irq,
};
@ -149,13 +113,8 @@ void __init mv64340_irq_init(unsigned int base)
{
int i;
/* Reset irq handlers pointers to NULL */
for (i = base; i < base + 64; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 2;
irq_desc[i].chip = &mv64340_irq_type;
}
for (i = base; i < base + 64; i++)
set_irq_chip(i, &mv64340_irq_type);
irq_base = base;
}

53
arch/mips/kernel/irq-rm7000.c
View File

@ -29,42 +29,6 @@ static inline void mask_rm7k_irq(unsigned int irq)
clear_c0_intcontrol(0x100 << (irq - irq_base));
}
static inline void rm7k_cpu_irq_enable(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
unmask_rm7k_irq(irq);
local_irq_restore(flags);
}
static void rm7k_cpu_irq_disable(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
mask_rm7k_irq(irq);
local_irq_restore(flags);
}
static unsigned int rm7k_cpu_irq_startup(unsigned int irq)
{
rm7k_cpu_irq_enable(irq);
return 0;
}
#define rm7k_cpu_irq_shutdown rm7k_cpu_irq_disable
/*
* While we ack the interrupt interrupts are disabled and thus we don't need
* to deal with concurrency issues. Same for rm7k_cpu_irq_end.
*/
static void rm7k_cpu_irq_ack(unsigned int irq)
{
mask_rm7k_irq(irq);
}
static void rm7k_cpu_irq_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
@ -73,11 +37,10 @@ static void rm7k_cpu_irq_end(unsigned int irq)
static struct irq_chip rm7k_irq_controller = {
.typename = "RM7000",
.startup = rm7k_cpu_irq_startup,
.shutdown = rm7k_cpu_irq_shutdown,
.enable = rm7k_cpu_irq_enable,
.disable = rm7k_cpu_irq_disable,
.ack = rm7k_cpu_irq_ack,
.ack = mask_rm7k_irq,
.mask = mask_rm7k_irq,
.mask_ack = mask_rm7k_irq,
.unmask = unmask_rm7k_irq,
.end = rm7k_cpu_irq_end,
};
@ -87,12 +50,8 @@ void __init rm7k_cpu_irq_init(int base)
clear_c0_intcontrol(0x00000f00); /* Mask all */
for (i = base; i < base + 4; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &rm7k_irq_controller;
}
for (i = base; i < base + 4; i++)
set_irq_chip(i, &rm7k_irq_controller);
irq_base = base;
}

45
arch/mips/kernel/irq-rm9000.c
View File

@ -48,15 +48,6 @@ static void rm9k_cpu_irq_disable(unsigned int irq)
local_irq_restore(flags);
}
static unsigned int rm9k_cpu_irq_startup(unsigned int irq)
{
rm9k_cpu_irq_enable(irq);
return 0;
}
#define rm9k_cpu_irq_shutdown rm9k_cpu_irq_disable
/*
* Performance counter interrupts are global on all processors.
*/
@ -89,16 +80,6 @@ static void rm9k_perfcounter_irq_shutdown(unsigned int irq)
on_each_cpu(local_rm9k_perfcounter_irq_shutdown, (void *) irq, 0, 1);
}
/*
* While we ack the interrupt interrupts are disabled and thus we don't need
* to deal with concurrency issues. Same for rm9k_cpu_irq_end.
*/
static void rm9k_cpu_irq_ack(unsigned int irq)
{
mask_rm9k_irq(irq);
}
static void rm9k_cpu_irq_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
@ -107,11 +88,10 @@ static void rm9k_cpu_irq_end(unsigned int irq)
static struct irq_chip rm9k_irq_controller = {
.typename = "RM9000",
.startup = rm9k_cpu_irq_startup,
.shutdown = rm9k_cpu_irq_shutdown,
.enable = rm9k_cpu_irq_enable,
.disable = rm9k_cpu_irq_disable,
.ack = rm9k_cpu_irq_ack,
.ack = mask_rm9k_irq,
.mask = mask_rm9k_irq,
.mask_ack = mask_rm9k_irq,
.unmask = unmask_rm9k_irq,
.end = rm9k_cpu_irq_end,
};
@ -119,9 +99,10 @@ static struct irq_chip rm9k_perfcounter_irq = {
.typename = "RM9000",
.startup = rm9k_perfcounter_irq_startup,
.shutdown = rm9k_perfcounter_irq_shutdown,
.enable = rm9k_cpu_irq_enable,
.disable = rm9k_cpu_irq_disable,
.ack = rm9k_cpu_irq_ack,
.ack = mask_rm9k_irq,
.mask = mask_rm9k_irq,
.mask_ack = mask_rm9k_irq,
.unmask = unmask_rm9k_irq,
.end = rm9k_cpu_irq_end,
};
@ -135,15 +116,11 @@ void __init rm9k_cpu_irq_init(int base)
clear_c0_intcontrol(0x0000f000); /* Mask all */
for (i = base; i < base + 4; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &rm9k_irq_controller;
}
for (i = base; i < base + 4; i++)
set_irq_chip(i, &rm9k_irq_controller);
rm9000_perfcount_irq = base + 1;
irq_desc[rm9000_perfcount_irq].chip = &rm9k_perfcounter_irq;
set_irq_chip(rm9000_perfcount_irq, &rm9k_perfcounter_irq);
irq_base = base;
}

13
arch/mips/kernel/irq.c
View File

@ -172,19 +172,6 @@ __setup("nokgdb", nokgdb);
void __init init_IRQ(void)
{
int i;
for (i = 0; i < NR_IRQS; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &no_irq_chip;
spin_lock_init(&irq_desc[i].lock);
#ifdef CONFIG_MIPS_MT_SMTC
irq_hwmask[i] = 0;
#endif /* CONFIG_MIPS_MT_SMTC */
}
arch_init_irq();
#ifdef CONFIG_KGDB

75
arch/mips/kernel/irq_cpu.c
View File

@ -50,44 +50,6 @@ static inline void mask_mips_irq(unsigned int irq)
irq_disable_hazard();
}
static inline void mips_cpu_irq_enable(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
unmask_mips_irq(irq);
back_to_back_c0_hazard();
local_irq_restore(flags);
}
static void mips_cpu_irq_disable(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
mask_mips_irq(irq);
back_to_back_c0_hazard();
local_irq_restore(flags);
}
static unsigned int mips_cpu_irq_startup(unsigned int irq)
{
mips_cpu_irq_enable(irq);
return 0;
}
#define mips_cpu_irq_shutdown mips_cpu_irq_disable
/*
* While we ack the interrupt interrupts are disabled and thus we don't need
* to deal with concurrency issues. Same for mips_cpu_irq_end.
*/
static void mips_cpu_irq_ack(unsigned int irq)
{
mask_mips_irq(irq);
}
static void mips_cpu_irq_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
@ -96,11 +58,10 @@ static void mips_cpu_irq_end(unsigned int irq)
static struct irq_chip mips_cpu_irq_controller = {
.typename = "MIPS",
.startup = mips_cpu_irq_startup,
.shutdown = mips_cpu_irq_shutdown,
.enable = mips_cpu_irq_enable,
.disable = mips_cpu_irq_disable,
.ack = mips_cpu_irq_ack,
.ack = mask_mips_irq,
.mask = mask_mips_irq,
.mask_ack = mask_mips_irq,
.unmask = unmask_mips_irq,
.end = mips_cpu_irq_end,
};
@ -110,8 +71,6 @@ static struct irq_chip mips_cpu_irq_controller = {
#define unmask_mips_mt_irq unmask_mips_irq
#define mask_mips_mt_irq mask_mips_irq
#define mips_mt_cpu_irq_enable mips_cpu_irq_enable
#define mips_mt_cpu_irq_disable mips_cpu_irq_disable
static unsigned int mips_mt_cpu_irq_startup(unsigned int irq)
{
@ -119,13 +78,11 @@ static unsigned int mips_mt_cpu_irq_startup(unsigned int irq)
clear_c0_cause(0x100 << (irq - mips_cpu_irq_base));
evpe(vpflags);
mips_mt_cpu_irq_enable(irq);
unmask_mips_mt_irq(irq);
return 0;
}
#define mips_mt_cpu_irq_shutdown mips_mt_cpu_irq_disable
/*
* While we ack the interrupt interrupts are disabled and thus we don't need
* to deal with concurrency issues. Same for mips_cpu_irq_end.
@ -143,10 +100,10 @@ static void mips_mt_cpu_irq_ack(unsigned int irq)
static struct irq_chip mips_mt_cpu_irq_controller = {
.typename = "MIPS",
.startup = mips_mt_cpu_irq_startup,
.shutdown = mips_mt_cpu_irq_shutdown,
.enable = mips_mt_cpu_irq_enable,
.disable = mips_mt_cpu_irq_disable,
.ack = mips_mt_cpu_irq_ack,
.mask = mask_mips_mt_irq,
.mask_ack = mips_mt_cpu_irq_ack,
.unmask = unmask_mips_mt_irq,
.end = mips_mt_cpu_irq_end,
};
@ -163,19 +120,11 @@ void __init mips_cpu_irq_init(int irq_base)
* leave them uninitialized for other processors.
*/
if (cpu_has_mipsmt)
for (i = irq_base; i < irq_base + 2; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &mips_mt_cpu_irq_controller;
}
for (i = irq_base; i < irq_base + 2; i++)
set_irq_chip(i, &mips_mt_cpu_irq_controller);
for (i = irq_base + 2; i < irq_base + 8; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &mips_cpu_irq_controller;
}
for (i = irq_base + 2; i < irq_base + 8; i++)
set_irq_chip(i, &mips_cpu_irq_controller);
mips_cpu_irq_base = irq_base;
}

36
arch/mips/lasat/interrupt.c
View File

@ -36,33 +36,14 @@ static volatile int lasat_int_mask_shift;
void disable_lasat_irq(unsigned int irq_nr)
{
unsigned long flags;
local_irq_save(flags);
*lasat_int_mask &= ~(1 << irq_nr) << lasat_int_mask_shift;
local_irq_restore(flags);
}
void enable_lasat_irq(unsigned int irq_nr)
{
unsigned long flags;
local_irq_save(flags);
*lasat_int_mask |= (1 << irq_nr) << lasat_int_mask_shift;
local_irq_restore(flags);
}
static unsigned int startup_lasat_irq(unsigned int irq)
{
enable_lasat_irq(irq);
return 0; /* never anything pending */
}
#define shutdown_lasat_irq disable_lasat_irq
#define mask_and_ack_lasat_irq disable_lasat_irq
static void end_lasat_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -71,11 +52,10 @@ static void end_lasat_irq(unsigned int irq)
static struct irq_chip lasat_irq_type = {
.typename = "Lasat",
.startup = startup_lasat_irq,
.shutdown = shutdown_lasat_irq,
.enable = enable_lasat_irq,
.disable = disable_lasat_irq,
.ack = mask_and_ack_lasat_irq,
.ack = disable_lasat_irq,
.mask = disable_lasat_irq,
.mask_ack = disable_lasat_irq,
.unmask = enable_lasat_irq,
.end = end_lasat_irq,
};
@ -152,10 +132,6 @@ void __init arch_init_irq(void)
panic("arch_init_irq: mips_machtype incorrect");
}
for (i = 0; i <= LASATINT_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &lasat_irq_type;
}
for (i = 0; i <= LASATINT_END; i++)
set_irq_chip(i, &lasat_irq_type);
}

28
arch/mips/mips-boards/atlas/atlas_int.c
View File

@ -62,16 +62,6 @@ void enable_atlas_irq(unsigned int irq_nr)
iob();
}
static unsigned int startup_atlas_irq(unsigned int irq)
{
enable_atlas_irq(irq);
return 0; /* never anything pending */
}
#define shutdown_atlas_irq disable_atlas_irq
#define mask_and_ack_atlas_irq disable_atlas_irq
static void end_atlas_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -80,11 +70,10 @@ static void end_atlas_irq(unsigned int irq)
static struct irq_chip atlas_irq_type = {
.typename = "Atlas",
.startup = startup_atlas_irq,
.shutdown = shutdown_atlas_irq,
.enable = enable_atlas_irq,
.disable = disable_atlas_irq,
.ack = mask_and_ack_atlas_irq,
.ack = disable_atlas_irq,
.mask = disable_atlas_irq,
.mask_ack = disable_atlas_irq,
.unmask = enable_atlas_irq,
.end = end_atlas_irq,
};
@ -217,13 +206,8 @@ static inline void init_atlas_irqs (int base)
*/
atlas_hw0_icregs->intrsten = 0xffffffff;
for (i = ATLAS_INT_BASE; i <= ATLAS_INT_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &atlas_irq_type;
spin_lock_init(&irq_desc[i].lock);
}
for (i = ATLAS_INT_BASE; i <= ATLAS_INT_END; i++)
set_irq_chip(i, &atlas_irq_type);
}
static struct irqaction atlasirq = {

53
arch/mips/momentum/ocelot_c/cpci-irq.c
View File

@ -65,39 +65,6 @@ static inline void unmask_cpci_irq(unsigned int irq)
value = OCELOT_FPGA_READ(INTMASK);
}
/*
* Enables the IRQ in the FPGA
*/
static void enable_cpci_irq(unsigned int irq)
{
unmask_cpci_irq(irq);
}
/*
* Initialize the IRQ in the FPGA
*/
static unsigned int startup_cpci_irq(unsigned int irq)
{
unmask_cpci_irq(irq);
return 0;
}
/*
* Disables the IRQ in the FPGA
*/
static void disable_cpci_irq(unsigned int irq)
{
mask_cpci_irq(irq);
}
/*
* Masks and ACKs an IRQ
*/
static void mask_and_ack_cpci_irq(unsigned int irq)
{
mask_cpci_irq(irq);
}
/*
* End IRQ processing
*/
@ -125,15 +92,12 @@ void ll_cpci_irq(void)
do_IRQ(ls1bit8(irq_src) + CPCI_IRQ_BASE);
}
#define shutdown_cpci_irq disable_cpci_irq
struct irq_chip cpci_irq_type = {
.typename = "CPCI/FPGA",
.startup = startup_cpci_irq,
.shutdown = shutdown_cpci_irq,
.enable = enable_cpci_irq,
.disable = disable_cpci_irq,
.ack = mask_and_ack_cpci_irq,
.ack = mask_cpci_irq,
.mask = mask_cpci_irq,
.mask_ack = mask_cpci_irq,
.unmask = unmask_cpci_irq,
.end = end_cpci_irq,
};
@ -141,11 +105,6 @@ void cpci_irq_init(void)
{
int i;
/* Reset irq handlers pointers to NULL */
for (i = CPCI_IRQ_BASE; i < (CPCI_IRQ_BASE + 8); i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 2;
irq_desc[i].chip = &cpci_irq_type;
}
for (i = CPCI_IRQ_BASE; i < (CPCI_IRQ_BASE + 8); i++)
set_irq_chip(i, &cpci_irq_type);
}

56
arch/mips/momentum/ocelot_c/uart-irq.c
View File

@ -59,39 +59,6 @@ static inline void unmask_uart_irq(unsigned int irq)
value = OCELOT_FPGA_READ(UART_INTMASK);
}
/*
* Enables the IRQ in the FPGA
*/
static void enable_uart_irq(unsigned int irq)
{
unmask_uart_irq(irq);
}
/*
* Initialize the IRQ in the FPGA
*/
static unsigned int startup_uart_irq(unsigned int irq)
{
unmask_uart_irq(irq);
return 0;
}
/*
* Disables the IRQ in the FPGA
*/
static void disable_uart_irq(unsigned int irq)
{
mask_uart_irq(irq);
}
/*
* Masks and ACKs an IRQ
*/
static void mask_and_ack_uart_irq(unsigned int irq)
{
mask_uart_irq(irq);
}
/*
* End IRQ processing
*/
@ -118,28 +85,17 @@ void ll_uart_irq(void)
do_IRQ(ls1bit8(irq_src) + 74);
}
#define shutdown_uart_irq disable_uart_irq
struct irq_chip uart_irq_type = {
.typename = "UART/FPGA",
.startup = startup_uart_irq,
.shutdown = shutdown_uart_irq,
.enable = enable_uart_irq,
.disable = disable_uart_irq,
.ack = mask_and_ack_uart_irq,
.ack = mask_uart_irq,
.mask = mask_uart_irq,
.mask_ack = mask_uart_irq,
.unmask = unmask_uart_irq,
.end = end_uart_irq,
};
void uart_irq_init(void)
{
/* Reset irq handlers pointers to NULL */
irq_desc[80].status = IRQ_DISABLED;
irq_desc[80].action = 0;
irq_desc[80].depth = 2;
irq_desc[80].chip = &uart_irq_type;
irq_desc[81].status = IRQ_DISABLED;
irq_desc[81].action = 0;
irq_desc[81].depth = 2;
irq_desc[81].chip = &uart_irq_type;
set_irq_chip(80, &uart_irq_type);
set_irq_chip(81, &uart_irq_type);
}

66
arch/mips/philips/pnx8550/common/int.c
View File

@ -38,8 +38,6 @@
#include <int.h>
#include <uart.h>
static DEFINE_SPINLOCK(irq_lock);
/* default prio for interrupts */
/* first one is a no-no so therefore always prio 0 (disabled) */
static char gic_prio[PNX8550_INT_GIC_TOTINT] = {
@ -149,38 +147,6 @@ static inline void unmask_irq(unsigned int irq_nr)
}
}
#define pnx8550_disable pnx8550_ack
static void pnx8550_ack(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&irq_lock, flags);
mask_irq(irq);
spin_unlock_irqrestore(&irq_lock, flags);
}
#define pnx8550_enable pnx8550_unmask
static void pnx8550_unmask(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&irq_lock, flags);
unmask_irq(irq);
spin_unlock_irqrestore(&irq_lock, flags);
}
static unsigned int startup_irq(unsigned int irq_nr)
{
pnx8550_unmask(irq_nr);
return 0;
}
static void shutdown_irq(unsigned int irq_nr)
{
pnx8550_ack(irq_nr);
return;
}
int pnx8550_set_gic_priority(int irq, int priority)
{
int gic_irq = irq-PNX8550_INT_GIC_MIN;
@ -192,26 +158,19 @@ int pnx8550_set_gic_priority(int irq, int priority)
return prev_priority;
}
static inline void mask_and_ack_level_irq(unsigned int irq)
{
pnx8550_disable(irq);
return;
}
static void end_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) {
pnx8550_enable(irq);
unmask_irq(irq);
}
}
static struct irq_chip level_irq_type = {
.typename = "PNX Level IRQ",
.startup = startup_irq,
.shutdown = shutdown_irq,
.enable = pnx8550_enable,
.disable = pnx8550_disable,
.ack = mask_and_ack_level_irq,
.ack = mask_irq,
.mask = mask_irq,
.mask_ack = mask_irq,
.unmask = unmask_irq,
.end = end_irq,
};
@ -233,8 +192,8 @@ void __init arch_init_irq(void)
int configPR;
for (i = 0; i < PNX8550_INT_CP0_TOTINT; i++) {
irq_desc[i].chip = &level_irq_type;
pnx8550_ack(i); /* mask the irq just in case */
set_irq_chip(i, &level_irq_type);
mask_irq(i); /* mask the irq just in case */
}
/* init of GIC/IPC interrupts */
@ -270,7 +229,7 @@ void __init arch_init_irq(void)
/* mask/priority is still 0 so we will not get any
* interrupts until it is unmasked */
irq_desc[i].chip = &level_irq_type;
set_irq_chip(i, &level_irq_type);
}
/* Priority level 0 */
@ -279,20 +238,19 @@ void __init arch_init_irq(void)
/* Set int vector table address */
PNX8550_GIC_VECTOR_0 = PNX8550_GIC_VECTOR_1 = 0;
irq_desc[MIPS_CPU_GIC_IRQ].chip = &level_irq_type;
set_irq_chip(MIPS_CPU_GIC_IRQ, &level_irq_type);
setup_irq(MIPS_CPU_GIC_IRQ, &gic_action);
/* init of Timer interrupts */
for (i = PNX8550_INT_TIMER_MIN; i <= PNX8550_INT_TIMER_MAX; i++) {
irq_desc[i].chip = &level_irq_type;
}
for (i = PNX8550_INT_TIMER_MIN; i <= PNX8550_INT_TIMER_MAX; i++)
set_irq_chip(i, &level_irq_type);
/* Stop Timer 1-3 */
configPR = read_c0_config7();
configPR |= 0x00000038;
write_c0_config7(configPR);
irq_desc[MIPS_CPU_TIMER_IRQ].chip = &level_irq_type;
set_irq_chip(MIPS_CPU_TIMER_IRQ, &level_irq_type);
setup_irq(MIPS_CPU_TIMER_IRQ, &timer_action);
}

33
arch/mips/sgi-ip22/ip22-eisa.c
View File

@ -95,16 +95,11 @@ static irqreturn_t ip22_eisa_intr(int irq, void *dev_id)
static void enable_eisa1_irq(unsigned int irq)
{
unsigned long flags;
u8 mask;
local_irq_save(flags);
mask = inb(EISA_INT1_MASK);
mask &= ~((u8) (1 << irq));
outb(mask, EISA_INT1_MASK);
local_irq_restore(flags);
}
static unsigned int startup_eisa1_irq(unsigned int irq)
@ -130,8 +125,6 @@ static void disable_eisa1_irq(unsigned int irq)
outb(mask, EISA_INT1_MASK);
}
#define shutdown_eisa1_irq disable_eisa1_irq
static void mask_and_ack_eisa1_irq(unsigned int irq)
{
disable_eisa1_irq(irq);
@ -148,25 +141,20 @@ static void end_eisa1_irq(unsigned int irq)
static struct irq_chip ip22_eisa1_irq_type = {
.typename = "IP22 EISA",
.startup = startup_eisa1_irq,
.shutdown = shutdown_eisa1_irq,
.enable = enable_eisa1_irq,
.disable = disable_eisa1_irq,
.ack = mask_and_ack_eisa1_irq,
.mask = disable_eisa1_irq,
.mask_ack = mask_and_ack_eisa1_irq,
.unmask = enable_eisa1_irq,
.end = end_eisa1_irq,
};
static void enable_eisa2_irq(unsigned int irq)
{
unsigned long flags;
u8 mask;
local_irq_save(flags);
mask = inb(EISA_INT2_MASK);
mask &= ~((u8) (1 << (irq - 8)));
outb(mask, EISA_INT2_MASK);
local_irq_restore(flags);
}
static unsigned int startup_eisa2_irq(unsigned int irq)
@ -192,8 +180,6 @@ static void disable_eisa2_irq(unsigned int irq)
outb(mask, EISA_INT2_MASK);
}
#define shutdown_eisa2_irq disable_eisa2_irq
static void mask_and_ack_eisa2_irq(unsigned int irq)
{
disable_eisa2_irq(irq);
@ -210,10 +196,10 @@ static void end_eisa2_irq(unsigned int irq)
static struct irq_chip ip22_eisa2_irq_type = {
.typename = "IP22 EISA",
.startup = startup_eisa2_irq,
.shutdown = shutdown_eisa2_irq,
.enable = enable_eisa2_irq,
.disable = disable_eisa2_irq,
.ack = mask_and_ack_eisa2_irq,
.mask = disable_eisa2_irq,
.mask_ack = mask_and_ack_eisa2_irq,
.unmask = enable_eisa2_irq,
.end = end_eisa2_irq,
};
@ -275,13 +261,10 @@ int __init ip22_eisa_init(void)
outb(0, EISA_DMA2_WRITE_SINGLE);
for (i = SGINT_EISA; i < (SGINT_EISA + EISA_MAX_IRQ); i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
if (i < (SGINT_EISA + 8))
irq_desc[i].chip = &ip22_eisa1_irq_type;
set_irq_chip(i, &ip22_eisa1_irq_type);
else
irq_desc[i].chip = &ip22_eisa2_irq_type;
set_irq_chip(i, &ip22_eisa2_irq_type);
}
/* Cannot use request_irq because of kmalloc not being ready at such

109
arch/mips/sgi-ip22/ip22-int.c
View File

@ -40,34 +40,17 @@ extern int ip22_eisa_init(void);
static void enable_local0_irq(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
/* don't allow mappable interrupt to be enabled from setup_irq,
* we have our own way to do so */
if (irq != SGI_MAP_0_IRQ)
sgint->imask0 |= (1 << (irq - SGINT_LOCAL0));
local_irq_restore(flags);
}
static unsigned int startup_local0_irq(unsigned int irq)
{
enable_local0_irq(irq);
return 0; /* Never anything pending */
}
static void disable_local0_irq(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
sgint->imask0 &= ~(1 << (irq - SGINT_LOCAL0));
local_irq_restore(flags);
}
#define shutdown_local0_irq disable_local0_irq
#define mask_and_ack_local0_irq disable_local0_irq
static void end_local0_irq (unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -76,44 +59,26 @@ static void end_local0_irq (unsigned int irq)
static struct irq_chip ip22_local0_irq_type = {
.typename = "IP22 local 0",
.startup = startup_local0_irq,
.shutdown = shutdown_local0_irq,
.enable = enable_local0_irq,
.disable = disable_local0_irq,
.ack = mask_and_ack_local0_irq,
.ack = disable_local0_irq,
.mask = disable_local0_irq,
.mask_ack = disable_local0_irq,
.unmask = enable_local0_irq,
.end = end_local0_irq,
};
static void enable_local1_irq(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
/* don't allow mappable interrupt to be enabled from setup_irq,
* we have our own way to do so */
if (irq != SGI_MAP_1_IRQ)
sgint->imask1 |= (1 << (irq - SGINT_LOCAL1));
local_irq_restore(flags);
}
static unsigned int startup_local1_irq(unsigned int irq)
{
enable_local1_irq(irq);
return 0; /* Never anything pending */
}
void disable_local1_irq(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
sgint->imask1 &= ~(1 << (irq - SGINT_LOCAL1));
local_irq_restore(flags);
}
#define shutdown_local1_irq disable_local1_irq
#define mask_and_ack_local1_irq disable_local1_irq
static void end_local1_irq (unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -122,44 +87,26 @@ static void end_local1_irq (unsigned int irq)
static struct irq_chip ip22_local1_irq_type = {
.typename = "IP22 local 1",
.startup = startup_local1_irq,
.shutdown = shutdown_local1_irq,
.enable = enable_local1_irq,
.disable = disable_local1_irq,
.ack = mask_and_ack_local1_irq,
.ack = disable_local1_irq,
.mask = disable_local1_irq,
.mask_ack = disable_local1_irq,
.unmask = enable_local1_irq,
.end = end_local1_irq,
};
static void enable_local2_irq(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
sgint->imask0 |= (1 << (SGI_MAP_0_IRQ - SGINT_LOCAL0));
sgint->cmeimask0 |= (1 << (irq - SGINT_LOCAL2));
local_irq_restore(flags);
}
static unsigned int startup_local2_irq(unsigned int irq)
{
enable_local2_irq(irq);
return 0; /* Never anything pending */
}
void disable_local2_irq(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
sgint->cmeimask0 &= ~(1 << (irq - SGINT_LOCAL2));
if (!sgint->cmeimask0)
sgint->imask0 &= ~(1 << (SGI_MAP_0_IRQ - SGINT_LOCAL0));
local_irq_restore(flags);
}
#define shutdown_local2_irq disable_local2_irq
#define mask_and_ack_local2_irq disable_local2_irq
static void end_local2_irq (unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -168,44 +115,26 @@ static void end_local2_irq (unsigned int irq)
static struct irq_chip ip22_local2_irq_type = {
.typename = "IP22 local 2",
.startup = startup_local2_irq,
.shutdown = shutdown_local2_irq,
.enable = enable_local2_irq,
.disable = disable_local2_irq,
.ack = mask_and_ack_local2_irq,
.ack = disable_local2_irq,
.mask = disable_local2_irq,
.mask_ack = disable_local2_irq,
.unmask = enable_local2_irq,
.end = end_local2_irq,
};
static void enable_local3_irq(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
sgint->imask1 |= (1 << (SGI_MAP_1_IRQ - SGINT_LOCAL1));
sgint->cmeimask1 |= (1 << (irq - SGINT_LOCAL3));
local_irq_restore(flags);
}
static unsigned int startup_local3_irq(unsigned int irq)
{
enable_local3_irq(irq);
return 0; /* Never anything pending */
}
void disable_local3_irq(unsigned int irq)
{
unsigned long flags;
local_irq_save(flags);
sgint->cmeimask1 &= ~(1 << (irq - SGINT_LOCAL3));
if (!sgint->cmeimask1)
sgint->imask1 &= ~(1 << (SGI_MAP_1_IRQ - SGINT_LOCAL1));
local_irq_restore(flags);
}
#define shutdown_local3_irq disable_local3_irq
#define mask_and_ack_local3_irq disable_local3_irq
static void end_local3_irq (unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -214,11 +143,10 @@ static void end_local3_irq (unsigned int irq)
static struct irq_chip ip22_local3_irq_type = {
.typename = "IP22 local 3",
.startup = startup_local3_irq,
.shutdown = shutdown_local3_irq,
.enable = enable_local3_irq,
.disable = disable_local3_irq,
.ack = mask_and_ack_local3_irq,
.ack = disable_local3_irq,
.mask = disable_local3_irq,
.mask_ack = disable_local3_irq,
.unmask = enable_local3_irq,
.end = end_local3_irq,
};
@ -430,10 +358,7 @@ void __init arch_init_irq(void)
else
handler = &ip22_local3_irq_type;
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = handler;
set_irq_chip(i, handler);
}
/* vector handler. this register the IRQ as non-sharable */

17
arch/mips/sgi-ip27/ip27-irq.c
View File

@ -332,11 +332,6 @@ static inline void disable_bridge_irq(unsigned int irq)
intr_disconnect_level(cpu, swlevel);
}
static void mask_and_ack_bridge_irq(unsigned int irq)
{
disable_bridge_irq(irq);
}
static void end_bridge_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)) &&
@ -348,18 +343,16 @@ static struct irq_chip bridge_irq_type = {
.typename = "bridge",
.startup = startup_bridge_irq,
.shutdown = shutdown_bridge_irq,
.enable = enable_bridge_irq,
.disable = disable_bridge_irq,
.ack = mask_and_ack_bridge_irq,
.ack = disable_bridge_irq,
.mask = disable_bridge_irq,
.mask_ack = disable_bridge_irq,
.unmask = enable_bridge_irq,
.end = end_bridge_irq,
};
void __devinit register_bridge_irq(unsigned int irq)
{
irq_desc[irq].status = IRQ_DISABLED;
irq_desc[irq].action = 0;
irq_desc[irq].depth = 1;
irq_desc[irq].chip = &bridge_irq_type;
set_irq_chip(irq, &bridge_irq_type);
}
int __devinit request_bridge_irq(struct bridge_controller *bc)

27
arch/mips/sgi-ip27/ip27-timer.c
View File

@ -172,15 +172,6 @@ static __init unsigned long get_m48t35_time(void)
return mktime(year, month, date, hour, min, sec);
}
static unsigned int startup_rt_irq(unsigned int irq)
{
return 0;
}
static void shutdown_rt_irq(unsigned int irq)
{
}
static void enable_rt_irq(unsigned int irq)
{
}
@ -189,21 +180,16 @@ static void disable_rt_irq(unsigned int irq)
{
}
static void mask_and_ack_rt(unsigned int irq)
{
}
static void end_rt_irq(unsigned int irq)
{
}
static struct irq_chip rt_irq_type = {
.typename = "SN HUB RT timer",
.startup = startup_rt_irq,
.shutdown = shutdown_rt_irq,
.enable = enable_rt_irq,
.disable = disable_rt_irq,
.ack = mask_and_ack_rt,
.ack = disable_rt_irq,
.mask = disable_rt_irq,
.mask_ack = disable_rt_irq,
.unmask = enable_rt_irq,
.end = end_rt_irq,
};
@ -221,10 +207,7 @@ void __init plat_timer_setup(struct irqaction *irq)
if (irqno < 0)
panic("Can't allocate interrupt number for timer interrupt");
irq_desc[irqno].status = IRQ_DISABLED;
irq_desc[irqno].action = NULL;
irq_desc[irqno].depth = 1;
irq_desc[irqno].chip = &rt_irq_type;
set_irq_chip(irqno, &rt_irq_type);
/* over-write the handler, we use our own way */
irq->handler = no_action;

133
arch/mips/sgi-ip32/ip32-irq.c
View File

@ -113,12 +113,6 @@ static void inline flush_mace_bus(void)
* is quite different anyway.
*/
/*
* IRQ spinlock - Ralf says not to disable CPU interrupts,
* and I think he knows better.
*/
static DEFINE_SPINLOCK(ip32_irq_lock);
/* Some initial interrupts to set up */
extern irqreturn_t crime_memerr_intr(int irq, void *dev_id);
extern irqreturn_t crime_cpuerr_intr(int irq, void *dev_id);
@ -138,12 +132,6 @@ static void enable_cpu_irq(unsigned int irq)
set_c0_status(STATUSF_IP7);
}
static unsigned int startup_cpu_irq(unsigned int irq)
{
enable_cpu_irq(irq);
return 0;
}
static void disable_cpu_irq(unsigned int irq)
{
clear_c0_status(STATUSF_IP7);
@ -155,16 +143,12 @@ static void end_cpu_irq(unsigned int irq)
enable_cpu_irq (irq);
}
#define shutdown_cpu_irq disable_cpu_irq
#define mask_and_ack_cpu_irq disable_cpu_irq
static struct irq_chip ip32_cpu_interrupt = {
.typename = "IP32 CPU",
.startup = startup_cpu_irq,
.shutdown = shutdown_cpu_irq,
.enable = enable_cpu_irq,
.disable = disable_cpu_irq,
.ack = mask_and_ack_cpu_irq,
.ack = disable_cpu_irq,
.mask = disable_cpu_irq,
.mask_ack = disable_cpu_irq,
.unmask = enable_cpu_irq,
.end = end_cpu_irq,
};
@ -177,45 +161,27 @@ static uint64_t crime_mask;
static void enable_crime_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&ip32_irq_lock, flags);
crime_mask |= 1 << (irq - 1);
crime->imask = crime_mask;
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
static unsigned int startup_crime_irq(unsigned int irq)
{
enable_crime_irq(irq);
return 0; /* This is probably not right; we could have pending irqs */
}
static void disable_crime_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&ip32_irq_lock, flags);
crime_mask &= ~(1 << (irq - 1));
crime->imask = crime_mask;
flush_crime_bus();
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
static void mask_and_ack_crime_irq(unsigned int irq)
{
unsigned long flags;
/* Edge triggered interrupts must be cleared. */
if ((irq >= CRIME_GBE0_IRQ && irq <= CRIME_GBE3_IRQ)
|| (irq >= CRIME_RE_EMPTY_E_IRQ && irq <= CRIME_RE_IDLE_E_IRQ)
|| (irq >= CRIME_SOFT0_IRQ && irq <= CRIME_SOFT2_IRQ)) {
uint64_t crime_int;
spin_lock_irqsave(&ip32_irq_lock, flags);
crime_int = crime->hard_int;
crime_int &= ~(1 << (irq - 1));
crime->hard_int = crime_int;
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
disable_crime_irq(irq);
}
@ -226,15 +192,12 @@ static void end_crime_irq(unsigned int irq)
enable_crime_irq(irq);
}
#define shutdown_crime_irq disable_crime_irq
static struct irq_chip ip32_crime_interrupt = {
.typename = "IP32 CRIME",
.startup = startup_crime_irq,
.shutdown = shutdown_crime_irq,
.enable = enable_crime_irq,
.disable = disable_crime_irq,
.ack = mask_and_ack_crime_irq,
.mask = disable_crime_irq,
.mask_ack = mask_and_ack_crime_irq,
.unmask = enable_crime_irq,
.end = end_crime_irq,
};
@ -248,34 +211,20 @@ static unsigned long macepci_mask;
static void enable_macepci_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&ip32_irq_lock, flags);
macepci_mask |= MACEPCI_CONTROL_INT(irq - 9);
mace->pci.control = macepci_mask;
crime_mask |= 1 << (irq - 1);
crime->imask = crime_mask;
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
static unsigned int startup_macepci_irq(unsigned int irq)
{
enable_macepci_irq (irq);
return 0;
}
static void disable_macepci_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&ip32_irq_lock, flags);
crime_mask &= ~(1 << (irq - 1));
crime->imask = crime_mask;
flush_crime_bus();
macepci_mask &= ~MACEPCI_CONTROL_INT(irq - 9);
mace->pci.control = macepci_mask;
flush_mace_bus();
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
static void end_macepci_irq(unsigned int irq)
@ -284,16 +233,12 @@ static void end_macepci_irq(unsigned int irq)
enable_macepci_irq(irq);
}
#define shutdown_macepci_irq disable_macepci_irq
#define mask_and_ack_macepci_irq disable_macepci_irq
static struct irq_chip ip32_macepci_interrupt = {
.typename = "IP32 MACE PCI",
.startup = startup_macepci_irq,
.shutdown = shutdown_macepci_irq,
.enable = enable_macepci_irq,
.disable = disable_macepci_irq,
.ack = mask_and_ack_macepci_irq,
.ack = disable_macepci_irq,
.mask = disable_macepci_irq,
.mask_ack = disable_macepci_irq,
.unmask = enable_macepci_irq,
.end = end_macepci_irq,
};
@ -339,7 +284,6 @@ static unsigned long maceisa_mask;
static void enable_maceisa_irq (unsigned int irq)
{
unsigned int crime_int = 0;
unsigned long flags;
DBG ("maceisa enable: %u\n", irq);
@ -355,26 +299,16 @@ static void enable_maceisa_irq (unsigned int irq)
break;
}
DBG ("crime_int %08x enabled\n", crime_int);
spin_lock_irqsave(&ip32_irq_lock, flags);
crime_mask |= crime_int;
crime->imask = crime_mask;
maceisa_mask |= 1 << (irq - 33);
mace->perif.ctrl.imask = maceisa_mask;
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
static unsigned int startup_maceisa_irq(unsigned int irq)
{
enable_maceisa_irq(irq);
return 0;
}
static void disable_maceisa_irq(unsigned int irq)
{
unsigned int crime_int = 0;
unsigned long flags;
spin_lock_irqsave(&ip32_irq_lock, flags);
maceisa_mask &= ~(1 << (irq - 33));
if(!(maceisa_mask & MACEISA_AUDIO_INT))
crime_int |= MACE_AUDIO_INT;
@ -387,23 +321,20 @@ static void disable_maceisa_irq(unsigned int irq)
flush_crime_bus();
mace->perif.ctrl.imask = maceisa_mask;
flush_mace_bus();
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
static void mask_and_ack_maceisa_irq(unsigned int irq)
{
unsigned long mace_int, flags;
unsigned long mace_int;
switch (irq) {
case MACEISA_PARALLEL_IRQ:
case MACEISA_SERIAL1_TDMAPR_IRQ:
case MACEISA_SERIAL2_TDMAPR_IRQ:
/* edge triggered */
spin_lock_irqsave(&ip32_irq_lock, flags);
mace_int = mace->perif.ctrl.istat;
mace_int &= ~(1 << (irq - 33));
mace->perif.ctrl.istat = mace_int;
spin_unlock_irqrestore(&ip32_irq_lock, flags);
break;
}
disable_maceisa_irq(irq);
@ -415,15 +346,12 @@ static void end_maceisa_irq(unsigned irq)
enable_maceisa_irq(irq);
}
#define shutdown_maceisa_irq disable_maceisa_irq
static struct irq_chip ip32_maceisa_interrupt = {
.typename = "IP32 MACE ISA",
.startup = startup_maceisa_irq,
.shutdown = shutdown_maceisa_irq,
.enable = enable_maceisa_irq,
.disable = disable_maceisa_irq,
.ack = mask_and_ack_maceisa_irq,
.mask = disable_maceisa_irq,
.mask_ack = mask_and_ack_maceisa_irq,
.unmask = enable_maceisa_irq,
.end = end_maceisa_irq,
};
@ -433,29 +361,15 @@ static struct irq_chip ip32_maceisa_interrupt = {
static void enable_mace_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&ip32_irq_lock, flags);
crime_mask |= 1 << (irq - 1);
crime->imask = crime_mask;
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
static unsigned int startup_mace_irq(unsigned int irq)
{
enable_mace_irq(irq);
return 0;
}
static void disable_mace_irq(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&ip32_irq_lock, flags);
crime_mask &= ~(1 << (irq - 1));
crime->imask = crime_mask;
flush_crime_bus();
spin_unlock_irqrestore(&ip32_irq_lock, flags);
}
static void end_mace_irq(unsigned int irq)
@ -464,16 +378,12 @@ static void end_mace_irq(unsigned int irq)
enable_mace_irq(irq);
}
#define shutdown_mace_irq disable_mace_irq
#define mask_and_ack_mace_irq disable_mace_irq
static struct irq_chip ip32_mace_interrupt = {
.typename = "IP32 MACE",
.startup = startup_mace_irq,
.shutdown = shutdown_mace_irq,
.enable = enable_mace_irq,
.disable = disable_mace_irq,
.ack = mask_and_ack_mace_irq,
.ack = disable_mace_irq,
.mask = disable_mace_irq,
.mask_ack = disable_mace_irq,
.unmask = enable_mace_irq,
.end = end_mace_irq,
};
@ -586,10 +496,7 @@ void __init arch_init_irq(void)
else
controller = &ip32_maceisa_interrupt;
irq_desc[irq].status = IRQ_DISABLED;
irq_desc[irq].action = 0;
irq_desc[irq].depth = 0;
irq_desc[irq].chip = controller;
set_irq_chip(irq, controller);
}
setup_irq(CRIME_MEMERR_IRQ, &memerr_irq);
setup_irq(CRIME_CPUERR_IRQ, &cpuerr_irq);

30
arch/mips/sibyte/bcm1480/irq.c
View File

@ -45,11 +45,9 @@
*/
#define shutdown_bcm1480_irq disable_bcm1480_irq
static void end_bcm1480_irq(unsigned int irq);
static void enable_bcm1480_irq(unsigned int irq);
static void disable_bcm1480_irq(unsigned int irq);
static unsigned int startup_bcm1480_irq(unsigned int irq);
static void ack_bcm1480_irq(unsigned int irq);
#ifdef CONFIG_SMP
static void bcm1480_set_affinity(unsigned int irq, cpumask_t mask);
@ -85,11 +83,10 @@ extern char sb1250_duart_present[];
static struct irq_chip bcm1480_irq_type = {
.typename = "BCM1480-IMR",
.startup = startup_bcm1480_irq,
.shutdown = shutdown_bcm1480_irq,
.enable = enable_bcm1480_irq,
.disable = disable_bcm1480_irq,
.ack = ack_bcm1480_irq,
.mask = disable_bcm1480_irq,
.mask_ack = ack_bcm1480_irq,
.unmask = enable_bcm1480_irq,
.end = end_bcm1480_irq,
#ifdef CONFIG_SMP
.set_affinity = bcm1480_set_affinity
@ -188,14 +185,6 @@ static void bcm1480_set_affinity(unsigned int irq, cpumask_t mask)
/*****************************************************************************/
static unsigned int startup_bcm1480_irq(unsigned int irq)
{
bcm1480_unmask_irq(bcm1480_irq_owner[irq], irq);
return 0; /* never anything pending */
}
static void disable_bcm1480_irq(unsigned int irq)
{
bcm1480_mask_irq(bcm1480_irq_owner[irq], irq);
@ -270,16 +259,9 @@ void __init init_bcm1480_irqs(void)
{
int i;
for (i = 0; i < NR_IRQS; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
if (i < BCM1480_NR_IRQS) {
irq_desc[i].chip = &bcm1480_irq_type;
bcm1480_irq_owner[i] = 0;
} else {
irq_desc[i].chip = &no_irq_chip;
}
for (i = 0; i < BCM1480_NR_IRQS; i++) {
set_irq_chip(i, &bcm1480_irq_type);
bcm1480_irq_owner[i] = 0;
}
}

30
arch/mips/sibyte/sb1250/irq.c
View File

@ -44,11 +44,9 @@
*/
#define shutdown_sb1250_irq disable_sb1250_irq
static void end_sb1250_irq(unsigned int irq);
static void enable_sb1250_irq(unsigned int irq);
static void disable_sb1250_irq(unsigned int irq);
static unsigned int startup_sb1250_irq(unsigned int irq);
static void ack_sb1250_irq(unsigned int irq);
#ifdef CONFIG_SMP
static void sb1250_set_affinity(unsigned int irq, cpumask_t mask);
@ -70,11 +68,10 @@ extern char sb1250_duart_present[];
static struct irq_chip sb1250_irq_type = {
.typename = "SB1250-IMR",
.startup = startup_sb1250_irq,
.shutdown = shutdown_sb1250_irq,
.enable = enable_sb1250_irq,
.disable = disable_sb1250_irq,
.ack = ack_sb1250_irq,
.mask = disable_sb1250_irq,
.mask_ack = ack_sb1250_irq,
.unmask = enable_sb1250_irq,
.end = end_sb1250_irq,
#ifdef CONFIG_SMP
.set_affinity = sb1250_set_affinity
@ -163,14 +160,6 @@ static void sb1250_set_affinity(unsigned int irq, cpumask_t mask)
/*****************************************************************************/
static unsigned int startup_sb1250_irq(unsigned int irq)
{
sb1250_unmask_irq(sb1250_irq_owner[irq], irq);
return 0; /* never anything pending */
}
static void disable_sb1250_irq(unsigned int irq)
{
sb1250_mask_irq(sb1250_irq_owner[irq], irq);
@ -239,16 +228,9 @@ void __init init_sb1250_irqs(void)
{
int i;
for (i = 0; i < NR_IRQS; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
if (i < SB1250_NR_IRQS) {
irq_desc[i].chip = &sb1250_irq_type;
sb1250_irq_owner[i] = 0;
} else {
irq_desc[i].chip = &no_irq_chip;
}
for (i = 0; i < SB1250_NR_IRQS; i++) {
set_irq_chip(i, &sb1250_irq_type);
sb1250_irq_owner[i] = 0;
}
}

40
arch/mips/sni/irq.c
View File

@ -11,44 +11,25 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <asm/i8259.h>
#include <asm/io.h>
#include <asm/sni.h>
DEFINE_SPINLOCK(pciasic_lock);
static void enable_pciasic_irq(unsigned int irq)
{
unsigned int mask = 1 << (irq - PCIMT_IRQ_INT2);
unsigned long flags;
spin_lock_irqsave(&pciasic_lock, flags);
*(volatile u8 *) PCIMT_IRQSEL |= mask;
spin_unlock_irqrestore(&pciasic_lock, flags);
}
static unsigned int startup_pciasic_irq(unsigned int irq)
{
enable_pciasic_irq(irq);
return 0; /* never anything pending */
}
#define shutdown_pciasic_irq disable_pciasic_irq
void disable_pciasic_irq(unsigned int irq)
{
unsigned int mask = ~(1 << (irq - PCIMT_IRQ_INT2));
unsigned long flags;
spin_lock_irqsave(&pciasic_lock, flags);
*(volatile u8 *) PCIMT_IRQSEL &= mask;
spin_unlock_irqrestore(&pciasic_lock, flags);
}
#define mask_and_ack_pciasic_irq disable_pciasic_irq
static void end_pciasic_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
@ -57,11 +38,10 @@ static void end_pciasic_irq(unsigned int irq)
static struct irq_chip pciasic_irq_type = {
.typename = "ASIC-PCI",
.startup = startup_pciasic_irq,
.shutdown = shutdown_pciasic_irq,
.enable = enable_pciasic_irq,
.disable = disable_pciasic_irq,
.ack = mask_and_ack_pciasic_irq,
.ack = disable_pciasic_irq,
.mask = disable_pciasic_irq,
.mask_ack = disable_pciasic_irq,
.unmask = enable_pciasic_irq,
.end = end_pciasic_irq,
};
@ -178,12 +158,8 @@ asmlinkage void plat_irq_dispatch(void)
void __init init_pciasic(void)
{
unsigned long flags;
spin_lock_irqsave(&pciasic_lock, flags);
* (volatile u8 *) PCIMT_IRQSEL =
IT_EISA | IT_INTA | IT_INTB | IT_INTC | IT_INTD;
spin_unlock_irqrestore(&pciasic_lock, flags);
}
/*
@ -199,12 +175,8 @@ void __init arch_init_irq(void)
init_pciasic();
/* Actually we've got more interrupts to handle ... */
for (i = PCIMT_IRQ_INT2; i <= PCIMT_IRQ_ETHERNET; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &pciasic_irq_type;
}
for (i = PCIMT_IRQ_INT2; i <= PCIMT_IRQ_ETHERNET; i++)
set_irq_chip(i, &pciasic_irq_type);
change_c0_status(ST0_IM, IE_IRQ1|IE_IRQ2|IE_IRQ3|IE_IRQ4);
}

162
arch/mips/tx4927/common/tx4927_irq.c
View File

@ -64,19 +64,13 @@
#define TX4927_IRQ_NEST4 ( 1 << 9 )
#define TX4927_IRQ_CP0_INIT ( 1 << 10 )
#define TX4927_IRQ_CP0_STARTUP ( 1 << 11 )
#define TX4927_IRQ_CP0_SHUTDOWN ( 1 << 12 )
#define TX4927_IRQ_CP0_ENABLE ( 1 << 13 )
#define TX4927_IRQ_CP0_DISABLE ( 1 << 14 )
#define TX4927_IRQ_CP0_MASK ( 1 << 15 )
#define TX4927_IRQ_CP0_ENDIRQ ( 1 << 16 )
#define TX4927_IRQ_PIC_INIT ( 1 << 20 )
#define TX4927_IRQ_PIC_STARTUP ( 1 << 21 )
#define TX4927_IRQ_PIC_SHUTDOWN ( 1 << 22 )
#define TX4927_IRQ_PIC_ENABLE ( 1 << 23 )
#define TX4927_IRQ_PIC_DISABLE ( 1 << 24 )
#define TX4927_IRQ_PIC_MASK ( 1 << 25 )
#define TX4927_IRQ_PIC_ENDIRQ ( 1 << 26 )
#define TX4927_IRQ_ALL 0xffffffff
@ -87,18 +81,12 @@ static const u32 tx4927_irq_debug_flag = (TX4927_IRQ_NONE
| TX4927_IRQ_INFO
| TX4927_IRQ_WARN | TX4927_IRQ_EROR
// | TX4927_IRQ_CP0_INIT
// | TX4927_IRQ_CP0_STARTUP
// | TX4927_IRQ_CP0_SHUTDOWN
// | TX4927_IRQ_CP0_ENABLE
// | TX4927_IRQ_CP0_DISABLE
// | TX4927_IRQ_CP0_MASK
// | TX4927_IRQ_CP0_ENDIRQ
// | TX4927_IRQ_PIC_INIT
// | TX4927_IRQ_PIC_STARTUP
// | TX4927_IRQ_PIC_SHUTDOWN
// | TX4927_IRQ_PIC_ENABLE
// | TX4927_IRQ_PIC_DISABLE
// | TX4927_IRQ_PIC_MASK
// | TX4927_IRQ_PIC_ENDIRQ
// | TX4927_IRQ_INIT
// | TX4927_IRQ_NEST1
@ -124,49 +112,36 @@ static const u32 tx4927_irq_debug_flag = (TX4927_IRQ_NONE
* Forwad definitions for all pic's
*/
static unsigned int tx4927_irq_cp0_startup(unsigned int irq);
static void tx4927_irq_cp0_shutdown(unsigned int irq);
static void tx4927_irq_cp0_enable(unsigned int irq);
static void tx4927_irq_cp0_disable(unsigned int irq);
static void tx4927_irq_cp0_mask_and_ack(unsigned int irq);
static void tx4927_irq_cp0_end(unsigned int irq);
static unsigned int tx4927_irq_pic_startup(unsigned int irq);
static void tx4927_irq_pic_shutdown(unsigned int irq);
static void tx4927_irq_pic_enable(unsigned int irq);
static void tx4927_irq_pic_disable(unsigned int irq);
static void tx4927_irq_pic_mask_and_ack(unsigned int irq);
static void tx4927_irq_pic_end(unsigned int irq);
/*
* Kernel structs for all pic's
*/
static DEFINE_SPINLOCK(tx4927_cp0_lock);
static DEFINE_SPINLOCK(tx4927_pic_lock);
#define TX4927_CP0_NAME "TX4927-CP0"
static struct irq_chip tx4927_irq_cp0_type = {
.typename = TX4927_CP0_NAME,
.startup = tx4927_irq_cp0_startup,
.shutdown = tx4927_irq_cp0_shutdown,
.enable = tx4927_irq_cp0_enable,
.disable = tx4927_irq_cp0_disable,
.ack = tx4927_irq_cp0_mask_and_ack,
.ack = tx4927_irq_cp0_disable,
.mask = tx4927_irq_cp0_disable,
.mask_ack = tx4927_irq_cp0_disable,
.unmask = tx4927_irq_cp0_enable,
.end = tx4927_irq_cp0_end,
.set_affinity = NULL
};
#define TX4927_PIC_NAME "TX4927-PIC"
static struct irq_chip tx4927_irq_pic_type = {
.typename = TX4927_PIC_NAME,
.startup = tx4927_irq_pic_startup,
.shutdown = tx4927_irq_pic_shutdown,
.enable = tx4927_irq_pic_enable,
.disable = tx4927_irq_pic_disable,
.ack = tx4927_irq_pic_mask_and_ack,
.ack = tx4927_irq_pic_disable,
.mask = tx4927_irq_pic_disable,
.mask_ack = tx4927_irq_pic_disable,
.unmask = tx4927_irq_pic_enable,
.end = tx4927_irq_pic_end,
.set_affinity = NULL
};
#define TX4927_PIC_ACTION(s) { no_action, 0, CPU_MASK_NONE, s, NULL, NULL }
@ -211,8 +186,6 @@ tx4927_irq_cp0_modify(unsigned cp0_reg, unsigned clr_bits, unsigned set_bits)
break;
}
}
return;
}
static void __init tx4927_irq_cp0_init(void)
@ -222,71 +195,22 @@ static void __init tx4927_irq_cp0_init(void)
TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_INIT, "beg=%d end=%d\n",
TX4927_IRQ_CP0_BEG, TX4927_IRQ_CP0_END);
for (i = TX4927_IRQ_CP0_BEG; i <= TX4927_IRQ_CP0_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &tx4927_irq_cp0_type;
}
return;
}
static unsigned int tx4927_irq_cp0_startup(unsigned int irq)
{
TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_STARTUP, "irq=%d \n", irq);
tx4927_irq_cp0_enable(irq);
return (0);
}
static void tx4927_irq_cp0_shutdown(unsigned int irq)
{
TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_SHUTDOWN, "irq=%d \n", irq);
tx4927_irq_cp0_disable(irq);
return;
for (i = TX4927_IRQ_CP0_BEG; i <= TX4927_IRQ_CP0_END; i++)
set_irq_chip(i, &tx4927_irq_cp0_type);
}
static void tx4927_irq_cp0_enable(unsigned int irq)
{
unsigned long flags;
TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_ENABLE, "irq=%d \n", irq);
spin_lock_irqsave(&tx4927_cp0_lock, flags);
tx4927_irq_cp0_modify(CCP0_STATUS, 0, tx4927_irq_cp0_mask(irq));
spin_unlock_irqrestore(&tx4927_cp0_lock, flags);
return;
}
static void tx4927_irq_cp0_disable(unsigned int irq)
{
unsigned long flags;
TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_DISABLE, "irq=%d \n", irq);
spin_lock_irqsave(&tx4927_cp0_lock, flags);
tx4927_irq_cp0_modify(CCP0_STATUS, tx4927_irq_cp0_mask(irq), 0);
spin_unlock_irqrestore(&tx4927_cp0_lock, flags);
return;
}
static void tx4927_irq_cp0_mask_and_ack(unsigned int irq)
{
TX4927_IRQ_DPRINTK(TX4927_IRQ_CP0_MASK, "irq=%d \n", irq);
tx4927_irq_cp0_disable(irq);
return;
}
static void tx4927_irq_cp0_end(unsigned int irq)
@ -296,8 +220,6 @@ static void tx4927_irq_cp0_end(unsigned int irq)
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
tx4927_irq_cp0_enable(irq);
}
return;
}
/*
@ -418,94 +340,38 @@ static void tx4927_irq_pic_modify(unsigned pic_reg, unsigned clr_bits,
val &= (~clr_bits);
val |= (set_bits);
TX4927_WR(pic_reg, val);
return;
}
static void __init tx4927_irq_pic_init(void)
{
unsigned long flags;
int i;
TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_INIT, "beg=%d end=%d\n",
TX4927_IRQ_PIC_BEG, TX4927_IRQ_PIC_END);
for (i = TX4927_IRQ_PIC_BEG; i <= TX4927_IRQ_PIC_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 2;
irq_desc[i].chip = &tx4927_irq_pic_type;
}
for (i = TX4927_IRQ_PIC_BEG; i <= TX4927_IRQ_PIC_END; i++)
set_irq_chip(i, &tx4927_irq_pic_type);
setup_irq(TX4927_IRQ_NEST_PIC_ON_CP0, &tx4927_irq_pic_action);
spin_lock_irqsave(&tx4927_pic_lock, flags);
TX4927_WR(0xff1ff640, 0x6); /* irq level mask -- only accept hightest */
TX4927_WR(0xff1ff600, TX4927_RD(0xff1ff600) | 0x1); /* irq enable */
spin_unlock_irqrestore(&tx4927_pic_lock, flags);
return;
}
static unsigned int tx4927_irq_pic_startup(unsigned int irq)
{
TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_STARTUP, "irq=%d\n", irq);
tx4927_irq_pic_enable(irq);
return (0);
}
static void tx4927_irq_pic_shutdown(unsigned int irq)
{
TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_SHUTDOWN, "irq=%d\n", irq);
tx4927_irq_pic_disable(irq);
return;
}
static void tx4927_irq_pic_enable(unsigned int irq)
{
unsigned long flags;
TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_ENABLE, "irq=%d\n", irq);
spin_lock_irqsave(&tx4927_pic_lock, flags);
tx4927_irq_pic_modify(tx4927_irq_pic_addr(irq), 0,
tx4927_irq_pic_mask(irq));
spin_unlock_irqrestore(&tx4927_pic_lock, flags);
return;
}
static void tx4927_irq_pic_disable(unsigned int irq)
{
unsigned long flags;
TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_DISABLE, "irq=%d\n", irq);
spin_lock_irqsave(&tx4927_pic_lock, flags);
tx4927_irq_pic_modify(tx4927_irq_pic_addr(irq),
tx4927_irq_pic_mask(irq), 0);
spin_unlock_irqrestore(&tx4927_pic_lock, flags);
return;
}
static void tx4927_irq_pic_mask_and_ack(unsigned int irq)
{
TX4927_IRQ_DPRINTK(TX4927_IRQ_PIC_MASK, "irq=%d\n", irq);
tx4927_irq_pic_disable(irq);
return;
}
static void tx4927_irq_pic_end(unsigned int irq)
@ -515,8 +381,6 @@ static void tx4927_irq_pic_end(unsigned int irq)
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
tx4927_irq_pic_enable(irq);
}
return;
}
/*
@ -533,8 +397,6 @@ void __init tx4927_irq_init(void)
tx4927_irq_pic_init();
TX4927_IRQ_DPRINTK(TX4927_IRQ_INIT, "+\n");
return;
}
static int tx4927_irq_nested(void)

183
arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
View File

@ -151,16 +151,11 @@ JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthB
#define TOSHIBA_RBTX4927_IRQ_EROR ( 1 << 2 )
#define TOSHIBA_RBTX4927_IRQ_IOC_INIT ( 1 << 10 )
#define TOSHIBA_RBTX4927_IRQ_IOC_STARTUP ( 1 << 11 )
#define TOSHIBA_RBTX4927_IRQ_IOC_SHUTDOWN ( 1 << 12 )
#define TOSHIBA_RBTX4927_IRQ_IOC_ENABLE ( 1 << 13 )
#define TOSHIBA_RBTX4927_IRQ_IOC_DISABLE ( 1 << 14 )
#define TOSHIBA_RBTX4927_IRQ_IOC_MASK ( 1 << 15 )
#define TOSHIBA_RBTX4927_IRQ_IOC_ENDIRQ ( 1 << 16 )
#define TOSHIBA_RBTX4927_IRQ_ISA_INIT ( 1 << 20 )
#define TOSHIBA_RBTX4927_IRQ_ISA_STARTUP ( 1 << 21 )
#define TOSHIBA_RBTX4927_IRQ_ISA_SHUTDOWN ( 1 << 22 )
#define TOSHIBA_RBTX4927_IRQ_ISA_ENABLE ( 1 << 23 )
#define TOSHIBA_RBTX4927_IRQ_ISA_DISABLE ( 1 << 24 )
#define TOSHIBA_RBTX4927_IRQ_ISA_MASK ( 1 << 25 )
@ -175,15 +170,10 @@ static const u32 toshiba_rbtx4927_irq_debug_flag =
(TOSHIBA_RBTX4927_IRQ_NONE | TOSHIBA_RBTX4927_IRQ_INFO |
TOSHIBA_RBTX4927_IRQ_WARN | TOSHIBA_RBTX4927_IRQ_EROR
// | TOSHIBA_RBTX4927_IRQ_IOC_INIT
// | TOSHIBA_RBTX4927_IRQ_IOC_STARTUP
// | TOSHIBA_RBTX4927_IRQ_IOC_SHUTDOWN
// | TOSHIBA_RBTX4927_IRQ_IOC_ENABLE
// | TOSHIBA_RBTX4927_IRQ_IOC_DISABLE
// | TOSHIBA_RBTX4927_IRQ_IOC_MASK
// | TOSHIBA_RBTX4927_IRQ_IOC_ENDIRQ
// | TOSHIBA_RBTX4927_IRQ_ISA_INIT
// | TOSHIBA_RBTX4927_IRQ_ISA_STARTUP
// | TOSHIBA_RBTX4927_IRQ_ISA_SHUTDOWN
// | TOSHIBA_RBTX4927_IRQ_ISA_ENABLE
// | TOSHIBA_RBTX4927_IRQ_ISA_DISABLE
// | TOSHIBA_RBTX4927_IRQ_ISA_MASK
@ -231,35 +221,25 @@ extern void disable_8259A_irq(unsigned int irq);
extern void mask_and_ack_8259A(unsigned int irq);
#endif
static unsigned int toshiba_rbtx4927_irq_ioc_startup(unsigned int irq);
static void toshiba_rbtx4927_irq_ioc_shutdown(unsigned int irq);
static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq);
static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
static void toshiba_rbtx4927_irq_ioc_mask_and_ack(unsigned int irq);
static void toshiba_rbtx4927_irq_ioc_end(unsigned int irq);
#ifdef CONFIG_TOSHIBA_FPCIB0
static unsigned int toshiba_rbtx4927_irq_isa_startup(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_shutdown(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_enable(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_disable(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq);
static void toshiba_rbtx4927_irq_isa_end(unsigned int irq);
#endif
static DEFINE_SPINLOCK(toshiba_rbtx4927_ioc_lock);
#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
.typename = TOSHIBA_RBTX4927_IOC_NAME,
.startup = toshiba_rbtx4927_irq_ioc_startup,
.shutdown = toshiba_rbtx4927_irq_ioc_shutdown,
.enable = toshiba_rbtx4927_irq_ioc_enable,
.disable = toshiba_rbtx4927_irq_ioc_disable,
.ack = toshiba_rbtx4927_irq_ioc_mask_and_ack,
.ack = toshiba_rbtx4927_irq_ioc_disable,
.mask = toshiba_rbtx4927_irq_ioc_disable,
.mask_ack = toshiba_rbtx4927_irq_ioc_disable,
.unmask = toshiba_rbtx4927_irq_ioc_enable,
.end = toshiba_rbtx4927_irq_ioc_end,
.set_affinity = NULL
};
#define TOSHIBA_RBTX4927_IOC_INTR_ENAB 0xbc002000
#define TOSHIBA_RBTX4927_IOC_INTR_STAT 0xbc002006
@ -269,13 +249,11 @@ static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
#define TOSHIBA_RBTX4927_ISA_NAME "RBTX4927-ISA"
static struct irq_chip toshiba_rbtx4927_irq_isa_type = {
.typename = TOSHIBA_RBTX4927_ISA_NAME,
.startup = toshiba_rbtx4927_irq_isa_startup,
.shutdown = toshiba_rbtx4927_irq_isa_shutdown,
.enable = toshiba_rbtx4927_irq_isa_enable,
.disable = toshiba_rbtx4927_irq_isa_disable,
.ack = toshiba_rbtx4927_irq_isa_mask_and_ack,
.mask = toshiba_rbtx4927_irq_isa_disable,
.mask_ack = toshiba_rbtx4927_irq_isa_mask_and_ack,
.unmask = toshiba_rbtx4927_irq_isa_enable,
.end = toshiba_rbtx4927_irq_isa_end,
.set_affinity = NULL
};
#endif
@ -363,58 +341,15 @@ static void __init toshiba_rbtx4927_irq_ioc_init(void)
TOSHIBA_RBTX4927_IRQ_IOC_END);
for (i = TOSHIBA_RBTX4927_IRQ_IOC_BEG;
i <= TOSHIBA_RBTX4927_IRQ_IOC_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 3;
irq_desc[i].chip = &toshiba_rbtx4927_irq_ioc_type;
}
i <= TOSHIBA_RBTX4927_IRQ_IOC_END; i++)
set_irq_chip(i, &toshiba_rbtx4927_irq_ioc_type);
setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC,
&toshiba_rbtx4927_irq_ioc_action);
return;
}
static unsigned int toshiba_rbtx4927_irq_ioc_startup(unsigned int irq)
{
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_STARTUP,
"irq=%d\n", irq);
if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
|| irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
"bad irq=%d\n", irq);
panic("\n");
}
toshiba_rbtx4927_irq_ioc_enable(irq);
return (0);
}
static void toshiba_rbtx4927_irq_ioc_shutdown(unsigned int irq)
{
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_SHUTDOWN,
"irq=%d\n", irq);
if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
|| irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
"bad irq=%d\n", irq);
panic("\n");
}
toshiba_rbtx4927_irq_ioc_disable(irq);
return;
}
static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq)
{
unsigned long flags;
volatile unsigned char v;
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_ENABLE,
@ -427,21 +362,14 @@ static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq)
panic("\n");
}
spin_lock_irqsave(&toshiba_rbtx4927_ioc_lock, flags);
v = TX4927_RD08(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
v |= (1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG));
TOSHIBA_RBTX4927_WR08(TOSHIBA_RBTX4927_IOC_INTR_ENAB, v);
spin_unlock_irqrestore(&toshiba_rbtx4927_ioc_lock, flags);
return;
}
static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq)
{
unsigned long flags;
volatile unsigned char v;
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_DISABLE,
@ -454,36 +382,11 @@ static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq)
panic("\n");
}
spin_lock_irqsave(&toshiba_rbtx4927_ioc_lock, flags);
v = TX4927_RD08(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
v &= ~(1 << (irq - TOSHIBA_RBTX4927_IRQ_IOC_BEG));
TOSHIBA_RBTX4927_WR08(TOSHIBA_RBTX4927_IOC_INTR_ENAB, v);
spin_unlock_irqrestore(&toshiba_rbtx4927_ioc_lock, flags);
return;
}
static void toshiba_rbtx4927_irq_ioc_mask_and_ack(unsigned int irq)
{
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_MASK,
"irq=%d\n", irq);
if (irq < TOSHIBA_RBTX4927_IRQ_IOC_BEG
|| irq > TOSHIBA_RBTX4927_IRQ_IOC_END) {
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
"bad irq=%d\n", irq);
panic("\n");
}
toshiba_rbtx4927_irq_ioc_disable(irq);
return;
}
static void toshiba_rbtx4927_irq_ioc_end(unsigned int irq)
{
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_IOC_ENDIRQ,
@ -499,8 +402,6 @@ static void toshiba_rbtx4927_irq_ioc_end(unsigned int irq)
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
toshiba_rbtx4927_irq_ioc_enable(irq);
}
return;
}
@ -520,13 +421,8 @@ static void __init toshiba_rbtx4927_irq_isa_init(void)
TOSHIBA_RBTX4927_IRQ_ISA_END);
for (i = TOSHIBA_RBTX4927_IRQ_ISA_BEG;
i <= TOSHIBA_RBTX4927_IRQ_ISA_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth =
((i < TOSHIBA_RBTX4927_IRQ_ISA_MID) ? (4) : (5));
irq_desc[i].chip = &toshiba_rbtx4927_irq_isa_type;
}
i <= TOSHIBA_RBTX4927_IRQ_ISA_END; i++)
set_irq_chip(i, &toshiba_rbtx4927_irq_isa_type);
setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC,
&toshiba_rbtx4927_irq_isa_master);
@ -536,48 +432,6 @@ static void __init toshiba_rbtx4927_irq_isa_init(void)
/* make sure we are looking at IRR (not ISR) */
outb(0x0A, 0x20);
outb(0x0A, 0xA0);
return;
}
#endif
#ifdef CONFIG_TOSHIBA_FPCIB0
static unsigned int toshiba_rbtx4927_irq_isa_startup(unsigned int irq)
{
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_STARTUP,
"irq=%d\n", irq);
if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
|| irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
"bad irq=%d\n", irq);
panic("\n");
}
toshiba_rbtx4927_irq_isa_enable(irq);
return (0);
}
#endif
#ifdef CONFIG_TOSHIBA_FPCIB0
static void toshiba_rbtx4927_irq_isa_shutdown(unsigned int irq)
{
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_ISA_SHUTDOWN,
"irq=%d\n", irq);
if (irq < TOSHIBA_RBTX4927_IRQ_ISA_BEG
|| irq > TOSHIBA_RBTX4927_IRQ_ISA_END) {
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_EROR,
"bad irq=%d\n", irq);
panic("\n");
}
toshiba_rbtx4927_irq_isa_disable(irq);
return;
}
#endif
@ -596,8 +450,6 @@ static void toshiba_rbtx4927_irq_isa_enable(unsigned int irq)
}
enable_8259A_irq(irq);
return;
}
#endif
@ -616,8 +468,6 @@ static void toshiba_rbtx4927_irq_isa_disable(unsigned int irq)
}
disable_8259A_irq(irq);
return;
}
#endif
@ -636,8 +486,6 @@ static void toshiba_rbtx4927_irq_isa_mask_and_ack(unsigned int irq)
}
mask_and_ack_8259A(irq);
return;
}
#endif
@ -658,8 +506,6 @@ static void toshiba_rbtx4927_irq_isa_end(unsigned int irq)
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
toshiba_rbtx4927_irq_isa_enable(irq);
}
return;
}
#endif
@ -668,8 +514,6 @@ void __init arch_init_irq(void)
{
extern void tx4927_irq_init(void);
local_irq_disable();
tx4927_irq_init();
toshiba_rbtx4927_irq_ioc_init();
#ifdef CONFIG_TOSHIBA_FPCIB0
@ -681,8 +525,6 @@ void __init arch_init_irq(void)
#endif
wbflush();
return;
}
void toshiba_rbtx4927_irq_dump(char *key)
@ -715,7 +557,6 @@ void toshiba_rbtx4927_irq_dump(char *key)
}
}
#endif
return;
}
void toshiba_rbtx4927_irq_dump_pics(char *s)
@ -780,6 +621,4 @@ void toshiba_rbtx4927_irq_dump_pics(char *s)
level5_s);
TOSHIBA_RBTX4927_IRQ_DPRINTK(TOSHIBA_RBTX4927_IRQ_INFO, "[%s]\n",
s);
return;
}

113
arch/mips/tx4938/common/irq.c
View File

@ -37,48 +37,36 @@
/* Forwad definitions for all pic's */
/**********************************************************************************/
static unsigned int tx4938_irq_cp0_startup(unsigned int irq);
static void tx4938_irq_cp0_shutdown(unsigned int irq);
static void tx4938_irq_cp0_enable(unsigned int irq);
static void tx4938_irq_cp0_disable(unsigned int irq);
static void tx4938_irq_cp0_mask_and_ack(unsigned int irq);
static void tx4938_irq_cp0_end(unsigned int irq);
static unsigned int tx4938_irq_pic_startup(unsigned int irq);
static void tx4938_irq_pic_shutdown(unsigned int irq);
static void tx4938_irq_pic_enable(unsigned int irq);
static void tx4938_irq_pic_disable(unsigned int irq);
static void tx4938_irq_pic_mask_and_ack(unsigned int irq);
static void tx4938_irq_pic_end(unsigned int irq);
/**********************************************************************************/
/* Kernel structs for all pic's */
/**********************************************************************************/
DEFINE_SPINLOCK(tx4938_cp0_lock);
DEFINE_SPINLOCK(tx4938_pic_lock);
#define TX4938_CP0_NAME "TX4938-CP0"
static struct irq_chip tx4938_irq_cp0_type = {
.typename = TX4938_CP0_NAME,
.startup = tx4938_irq_cp0_startup,
.shutdown = tx4938_irq_cp0_shutdown,
.enable = tx4938_irq_cp0_enable,
.disable = tx4938_irq_cp0_disable,
.ack = tx4938_irq_cp0_mask_and_ack,
.ack = tx4938_irq_cp0_disable,
.mask = tx4938_irq_cp0_disable,
.mask_ack = tx4938_irq_cp0_disable,
.unmask = tx4938_irq_cp0_enable,
.end = tx4938_irq_cp0_end,
.set_affinity = NULL
};
#define TX4938_PIC_NAME "TX4938-PIC"
static struct irq_chip tx4938_irq_pic_type = {
.typename = TX4938_PIC_NAME,
.startup = tx4938_irq_pic_startup,
.shutdown = tx4938_irq_pic_shutdown,
.enable = tx4938_irq_pic_enable,
.disable = tx4938_irq_pic_disable,
.ack = tx4938_irq_pic_mask_and_ack,
.ack = tx4938_irq_pic_disable,
.mask = tx4938_irq_pic_disable,
.mask_ack = tx4938_irq_pic_disable,
.unmask = tx4938_irq_pic_enable,
.end = tx4938_irq_pic_end,
.set_affinity = NULL
};
static struct irqaction tx4938_irq_pic_action = {
@ -99,56 +87,20 @@ tx4938_irq_cp0_init(void)
{
int i;
for (i = TX4938_IRQ_CP0_BEG; i <= TX4938_IRQ_CP0_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 1;
irq_desc[i].chip = &tx4938_irq_cp0_type;
}
}
static unsigned int
tx4938_irq_cp0_startup(unsigned int irq)
{
tx4938_irq_cp0_enable(irq);
return 0;
}
static void
tx4938_irq_cp0_shutdown(unsigned int irq)
{
tx4938_irq_cp0_disable(irq);
for (i = TX4938_IRQ_CP0_BEG; i <= TX4938_IRQ_CP0_END; i++)
set_irq_chip(i, &tx4938_irq_cp0_type);
}
static void
tx4938_irq_cp0_enable(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&tx4938_cp0_lock, flags);
set_c0_status(tx4938_irq_cp0_mask(irq));
spin_unlock_irqrestore(&tx4938_cp0_lock, flags);
}
static void
tx4938_irq_cp0_disable(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&tx4938_cp0_lock, flags);
clear_c0_status(tx4938_irq_cp0_mask(irq));
spin_unlock_irqrestore(&tx4938_cp0_lock, flags);
}
static void
tx4938_irq_cp0_mask_and_ack(unsigned int irq)
{
tx4938_irq_cp0_disable(irq);
}
static void
@ -290,70 +242,29 @@ tx4938_irq_pic_modify(unsigned pic_reg, unsigned clr_bits, unsigned set_bits)
static void __init
tx4938_irq_pic_init(void)
{
unsigned long flags;
int i;
for (i = TX4938_IRQ_PIC_BEG; i <= TX4938_IRQ_PIC_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 2;
irq_desc[i].chip = &tx4938_irq_pic_type;
}
for (i = TX4938_IRQ_PIC_BEG; i <= TX4938_IRQ_PIC_END; i++)
set_irq_chip(i, &tx4938_irq_pic_type);
setup_irq(TX4938_IRQ_NEST_PIC_ON_CP0, &tx4938_irq_pic_action);
spin_lock_irqsave(&tx4938_pic_lock, flags);
TX4938_WR(0xff1ff640, 0x6); /* irq level mask -- only accept hightest */
TX4938_WR(0xff1ff600, TX4938_RD(0xff1ff600) | 0x1); /* irq enable */
spin_unlock_irqrestore(&tx4938_pic_lock, flags);
}
static unsigned int
tx4938_irq_pic_startup(unsigned int irq)
{
tx4938_irq_pic_enable(irq);
return 0;
}
static void
tx4938_irq_pic_shutdown(unsigned int irq)
{
tx4938_irq_pic_disable(irq);
}
static void
tx4938_irq_pic_enable(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&tx4938_pic_lock, flags);
tx4938_irq_pic_modify(tx4938_irq_pic_addr(irq), 0,
tx4938_irq_pic_mask(irq));
spin_unlock_irqrestore(&tx4938_pic_lock, flags);
}
static void
tx4938_irq_pic_disable(unsigned int irq)
{
unsigned long flags;
spin_lock_irqsave(&tx4938_pic_lock, flags);
tx4938_irq_pic_modify(tx4938_irq_pic_addr(irq),
tx4938_irq_pic_mask(irq), 0);
spin_unlock_irqrestore(&tx4938_pic_lock, flags);
}
static void
tx4938_irq_pic_mask_and_ack(unsigned int irq)
{
tx4938_irq_pic_disable(irq);
}
static void

53
arch/mips/tx4938/toshiba_rbtx4938/irq.c
View File

@ -87,25 +87,18 @@ IRQ Device
#include <linux/bootmem.h>
#include <asm/tx4938/rbtx4938.h>
static unsigned int toshiba_rbtx4938_irq_ioc_startup(unsigned int irq);
static void toshiba_rbtx4938_irq_ioc_shutdown(unsigned int irq);
static void toshiba_rbtx4938_irq_ioc_enable(unsigned int irq);
static void toshiba_rbtx4938_irq_ioc_disable(unsigned int irq);
static void toshiba_rbtx4938_irq_ioc_mask_and_ack(unsigned int irq);
static void toshiba_rbtx4938_irq_ioc_end(unsigned int irq);
DEFINE_SPINLOCK(toshiba_rbtx4938_ioc_lock);
#define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC"
static struct irq_chip toshiba_rbtx4938_irq_ioc_type = {
.typename = TOSHIBA_RBTX4938_IOC_NAME,
.startup = toshiba_rbtx4938_irq_ioc_startup,
.shutdown = toshiba_rbtx4938_irq_ioc_shutdown,
.enable = toshiba_rbtx4938_irq_ioc_enable,
.disable = toshiba_rbtx4938_irq_ioc_disable,
.ack = toshiba_rbtx4938_irq_ioc_mask_and_ack,
.ack = toshiba_rbtx4938_irq_ioc_disable,
.mask = toshiba_rbtx4938_irq_ioc_disable,
.mask_ack = toshiba_rbtx4938_irq_ioc_disable,
.unmask = toshiba_rbtx4938_irq_ioc_enable,
.end = toshiba_rbtx4938_irq_ioc_end,
.set_affinity = NULL
};
#define TOSHIBA_RBTX4938_IOC_INTR_ENAB 0xb7f02000
@ -142,69 +135,35 @@ toshiba_rbtx4938_irq_ioc_init(void)
int i;
for (i = TOSHIBA_RBTX4938_IRQ_IOC_BEG;
i <= TOSHIBA_RBTX4938_IRQ_IOC_END; i++) {
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = 0;
irq_desc[i].depth = 3;
irq_desc[i].chip = &toshiba_rbtx4938_irq_ioc_type;
}
i <= TOSHIBA_RBTX4938_IRQ_IOC_END; i++)
set_irq_chip(i, &toshiba_rbtx4938_irq_ioc_type);
setup_irq(RBTX4938_IRQ_IOCINT,
&toshiba_rbtx4938_irq_ioc_action);
}
static unsigned int
toshiba_rbtx4938_irq_ioc_startup(unsigned int irq)
{
toshiba_rbtx4938_irq_ioc_enable(irq);
return 0;
}
static void
toshiba_rbtx4938_irq_ioc_shutdown(unsigned int irq)
{
toshiba_rbtx4938_irq_ioc_disable(irq);
}
static void
toshiba_rbtx4938_irq_ioc_enable(unsigned int irq)
{
unsigned long flags;
volatile unsigned char v;
spin_lock_irqsave(&toshiba_rbtx4938_ioc_lock, flags);
v = TX4938_RD08(TOSHIBA_RBTX4938_IOC_INTR_ENAB);
v |= (1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG));
TX4938_WR08(TOSHIBA_RBTX4938_IOC_INTR_ENAB, v);
mmiowb();
TX4938_RD08(TOSHIBA_RBTX4938_IOC_INTR_ENAB);
spin_unlock_irqrestore(&toshiba_rbtx4938_ioc_lock, flags);
}
static void
toshiba_rbtx4938_irq_ioc_disable(unsigned int irq)
{
unsigned long flags;
volatile unsigned char v;
spin_lock_irqsave(&toshiba_rbtx4938_ioc_lock, flags);
v = TX4938_RD08(TOSHIBA_RBTX4938_IOC_INTR_ENAB);
v &= ~(1 << (irq - TOSHIBA_RBTX4938_IRQ_IOC_BEG));
TX4938_WR08(TOSHIBA_RBTX4938_IOC_INTR_ENAB, v);
mmiowb();
TX4938_RD08(TOSHIBA_RBTX4938_IOC_INTR_ENAB);
spin_unlock_irqrestore(&toshiba_rbtx4938_ioc_lock, flags);
}
static void
toshiba_rbtx4938_irq_ioc_mask_and_ack(unsigned int irq)
{
toshiba_rbtx4938_irq_ioc_disable(irq);
}
static void

46
arch/mips/vr41xx/common/icu.c
View File

@ -417,14 +417,7 @@ void vr41xx_disable_bcuint(void)
EXPORT_SYMBOL(vr41xx_disable_bcuint);
static unsigned int startup_sysint1_irq(unsigned int irq)
{
icu1_set(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(irq));
return 0; /* never anything pending */
}
static void shutdown_sysint1_irq(unsigned int irq)
static void disable_sysint1_irq(unsigned int irq)
{
icu1_clear(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(irq));
}
@ -434,9 +427,6 @@ static void enable_sysint1_irq(unsigned int irq)
icu1_set(MSYSINT1REG, 1 << SYSINT1_IRQ_TO_PIN(irq));
}
#define disable_sysint1_irq shutdown_sysint1_irq
#define ack_sysint1_irq shutdown_sysint1_irq
static void end_sysint1_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
@ -445,22 +435,14 @@ static void end_sysint1_irq(unsigned int irq)
static struct irq_chip sysint1_irq_type = {
.typename = "SYSINT1",
.startup = startup_sysint1_irq,
.shutdown = shutdown_sysint1_irq,
.enable = enable_sysint1_irq,
.disable = disable_sysint1_irq,
.ack = ack_sysint1_irq,
.ack = disable_sysint1_irq,
.mask = disable_sysint1_irq,
.mask_ack = disable_sysint1_irq,
.unmask = enable_sysint1_irq,
.end = end_sysint1_irq,
};
static unsigned int startup_sysint2_irq(unsigned int irq)
{
icu2_set(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(irq));
return 0; /* never anything pending */
}
static void shutdown_sysint2_irq(unsigned int irq)
static void disable_sysint2_irq(unsigned int irq)
{
icu2_clear(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(irq));
}
@ -470,9 +452,6 @@ static void enable_sysint2_irq(unsigned int irq)
icu2_set(MSYSINT2REG, 1 << SYSINT2_IRQ_TO_PIN(irq));
}
#define disable_sysint2_irq shutdown_sysint2_irq
#define ack_sysint2_irq shutdown_sysint2_irq
static void end_sysint2_irq(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
@ -481,11 +460,10 @@ static void end_sysint2_irq(unsigned int irq)
static struct irq_chip sysint2_irq_type = {
.typename = "SYSINT2",
.startup = startup_sysint2_irq,
.shutdown = shutdown_sysint2_irq,
.enable = enable_sysint2_irq,
.disable = disable_sysint2_irq,
.ack = ack_sysint2_irq,
.ack = disable_sysint2_irq,
.mask = disable_sysint2_irq,
.mask_ack = disable_sysint2_irq,
.unmask = enable_sysint2_irq,
.end = end_sysint2_irq,
};
@ -723,10 +701,10 @@ static int __init vr41xx_icu_init(void)
icu2_write(MGIUINTHREG, 0xffff);
for (i = SYSINT1_IRQ_BASE; i <= SYSINT1_IRQ_LAST; i++)
irq_desc[i].chip = &sysint1_irq_type;
set_irq_chip(i, &sysint1_irq_type);
for (i = SYSINT2_IRQ_BASE; i <= SYSINT2_IRQ_LAST; i++)
irq_desc[i].chip = &sysint2_irq_type;
set_irq_chip(i, &sysint2_irq_type);
cascade_irq(INT0_IRQ, icu_get_irq);
cascade_irq(INT1_IRQ, icu_get_irq);

20
arch/mips/vr41xx/nec-cmbvr4133/irq.c
View File

@ -30,17 +30,6 @@ extern void init_8259A(int hoge);
extern int vr4133_rockhopper;
static unsigned int startup_i8259_irq(unsigned int irq)
{
enable_8259A_irq(irq - I8259_IRQ_BASE);
return 0;
}
static void shutdown_i8259_irq(unsigned int irq)
{
disable_8259A_irq(irq - I8259_IRQ_BASE);
}
static void enable_i8259_irq(unsigned int irq)
{
enable_8259A_irq(irq - I8259_IRQ_BASE);
@ -64,11 +53,10 @@ static void end_i8259_irq(unsigned int irq)
static struct irq_chip i8259_irq_type = {
.typename = "XT-PIC",
.startup = startup_i8259_irq,
.shutdown = shutdown_i8259_irq,
.enable = enable_i8259_irq,
.disable = disable_i8259_irq,
.ack = ack_i8259_irq,
.mask = disable_i8259_irq,
.mask_ack = ack_i8259_irq,
.unmask = enable_i8259_irq,
.end = end_i8259_irq,
};
@ -104,7 +92,7 @@ void __init rockhopper_init_irq(void)
}
for (i = I8259_IRQ_BASE; i <= I8259_IRQ_LAST; i++)
irq_desc[i].chip = &i8259_irq_type;
set_irq_chip(i, &i8259_irq_type);
setup_irq(I8259_SLAVE_IRQ, &i8259_slave_cascade);

2
include/asm-mips/dec/kn02.h
View File

@ -82,11 +82,9 @@
#ifndef __ASSEMBLY__
#include <linux/spinlock.h>
#include <linux/types.h>
extern u32 cached_kn02_csr;
extern spinlock_t kn02_lock;
extern void init_kn02_irqs(int base);
#endif