X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fmips%2Fau1000%2Fcommon%2Firq.c;h=9cf7b6715836c914144955a2de1ec2b38f39e81d;hb=a2f44b27303a5353859d77a3e96a1d3f33f56ab7;hp=1339a0979f66d61be72c1e65fdce3856ff558149;hpb=134734d875a0a48d994ef20b9905209b4b8b6f75;p=linux-2.6.git

diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index 1339a0979..9cf7b6715 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -26,7 +26,6 @@
  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/irq.h>
@@ -66,12 +65,11 @@
 #define EXT_INTC1_REQ1 5 /* IP 5 */
 #define MIPS_TIMER_IP  7 /* IP 7 */
 
-extern asmlinkage void au1000_IRQ(void);
 extern void set_debug_traps(void);
 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);
@@ -82,27 +80,9 @@ inline void local_disable_irq(unsigned int irq_nr);
 
 void	(*board_init_irq)(void);
 
-#ifdef CONFIG_PM
-extern irqreturn_t counter0_irq(int irq, void *dev_id, struct pt_regs *regs);
-#endif
-
 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) {
@@ -252,48 +232,44 @@ void restore_local_and_enable(int controller, unsigned long mask)
 }
 
 
-static struct hw_interrupt_type rise_edge_irq_type = {
+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 hw_interrupt_type fall_edge_irq_type = {
+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 hw_interrupt_type either_edge_irq_type = {
+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 hw_interrupt_type level_irq_type = {
+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,
 };
 
 #ifdef CONFIG_PM
-void startup_match20_interrupt(irqreturn_t (*handler)(int, void *, struct pt_regs *))
+void startup_match20_interrupt(irq_handler_t handler)
 {
 	struct irq_desc *desc = &irq_desc[AU1000_TOY_MATCH2_INT];
 
@@ -310,7 +286,7 @@ void startup_match20_interrupt(irqreturn_t (*handler)(int, void *, struct pt_reg
 	 * can avoid it.  --cgray
 	*/
 	action.dev_id = handler;
-	action.flags = SA_INTERRUPT;
+	action.flags = IRQF_DISABLED;
 	cpus_clear(action.mask);
 	action.name = "Au1xxx TOY";
 	action.handler = handler;
@@ -333,31 +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].handler = &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].handler = &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].handler = &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].handler = &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].handler = &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);
@@ -385,31 +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].handler = &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].handler = &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].handler = &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].handler = &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].handler = &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);
@@ -446,7 +422,6 @@ void __init arch_init_irq(void)
 	extern int au1xxx_ic0_nr_irqs;
 
 	cp0_status = read_c0_status();
-	set_except_vector(0, au1000_IRQ);
 
 	/* Initialize interrupt controllers to a safe state.
 	*/
@@ -503,14 +478,15 @@ void __init arch_init_irq(void)
  * intcX_reqX_irqdispatch().
  */
 
-void intc0_req0_irqdispatch(struct pt_regs *regs)
+static void intc0_req0_irqdispatch(void)
 {
 	int irq = 0;
 	static unsigned long intc0_req0 = 0;
 
 	intc0_req0 |= au_readl(IC0_REQ0INT);
 
-	if (!intc0_req0) return;
+	if (!intc0_req0)
+		return;
 #ifdef AU1000_USB_DEV_REQ_INT
 	/*
 	 * Because of the tight timing of SETUP token to reply
@@ -519,28 +495,29 @@ void intc0_req0_irqdispatch(struct pt_regs *regs)
 	 */
 	if ((intc0_req0 & (1<<AU1000_USB_DEV_REQ_INT))) {
 		intc0_req0 &= ~(1<<AU1000_USB_DEV_REQ_INT);
-		do_IRQ(AU1000_USB_DEV_REQ_INT, regs);
+		do_IRQ(AU1000_USB_DEV_REQ_INT);
 		return;
 	}
 #endif
 	irq = au_ffs(intc0_req0) - 1;
 	intc0_req0 &= ~(1<<irq);
-	do_IRQ(irq, regs);
+	do_IRQ(irq);
 }
 
 
-void intc0_req1_irqdispatch(struct pt_regs *regs)
+static void intc0_req1_irqdispatch(void)
 {
 	int irq = 0;
 	static unsigned long intc0_req1 = 0;
 
 	intc0_req1 |= au_readl(IC0_REQ1INT);
 
-	if (!intc0_req1) return;
+	if (!intc0_req1)
+		return;
 
 	irq = au_ffs(intc0_req1) - 1;
 	intc0_req1 &= ~(1<<irq);
-	do_IRQ(irq, regs);
+	do_IRQ(irq);
 }
 
 
@@ -548,35 +525,37 @@ void intc0_req1_irqdispatch(struct pt_regs *regs)
  * Interrupt Controller 1:
  * interrupts 32 - 63
  */
-void intc1_req0_irqdispatch(struct pt_regs *regs)
+static void intc1_req0_irqdispatch(void)
 {
 	int irq = 0;
 	static unsigned long intc1_req0 = 0;
 
 	intc1_req0 |= au_readl(IC1_REQ0INT);
 
-	if (!intc1_req0) return;
+	if (!intc1_req0)
+		return;
 
 	irq = au_ffs(intc1_req0) - 1;
 	intc1_req0 &= ~(1<<irq);
 	irq += 32;
-	do_IRQ(irq, regs);
+	do_IRQ(irq);
 }
 
 
-void intc1_req1_irqdispatch(struct pt_regs *regs)
+static void intc1_req1_irqdispatch(void)
 {
 	int irq = 0;
 	static unsigned long intc1_req1 = 0;
 
 	intc1_req1 |= au_readl(IC1_REQ1INT);
 
-	if (!intc1_req1) return;
+	if (!intc1_req1)
+		return;
 
 	irq = au_ffs(intc1_req1) - 1;
 	intc1_req1 &= ~(1<<irq);
 	irq += 32;
-	do_IRQ(irq, regs);
+	do_IRQ(irq);
 }
 
 #ifdef CONFIG_PM
@@ -586,13 +565,13 @@ void intc1_req1_irqdispatch(struct pt_regs *regs)
  * au_sleep function in power.c.....maybe I should just pm_register()
  * them instead?
  */
-static uint	sleep_intctl_config0[2];
-static uint	sleep_intctl_config1[2];
-static uint	sleep_intctl_config2[2];
-static uint	sleep_intctl_src[2];
-static uint	sleep_intctl_assign[2];
-static uint	sleep_intctl_wake[2];
-static uint	sleep_intctl_mask[2];
+static unsigned int	sleep_intctl_config0[2];
+static unsigned int	sleep_intctl_config1[2];
+static unsigned int	sleep_intctl_config2[2];
+static unsigned int	sleep_intctl_src[2];
+static unsigned int	sleep_intctl_assign[2];
+static unsigned int	sleep_intctl_wake[2];
+static unsigned int	sleep_intctl_mask[2];
 
 void
 save_au1xxx_intctl(void)
@@ -661,3 +640,21 @@ restore_au1xxx_intctl(void)
 	au_writel(sleep_intctl_mask[0], IC0_MASKSET); au_sync();
 }
 #endif /* CONFIG_PM */
+
+asmlinkage void plat_irq_dispatch(void)
+{
+	unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
+
+	if (pending & CAUSEF_IP7)
+		mips_timer_interrupt();
+	else if (pending & CAUSEF_IP2)
+		intc0_req0_irqdispatch();
+	else if (pending & CAUSEF_IP3)
+		intc0_req1_irqdispatch();
+	else if (pending & CAUSEF_IP4)
+		intc1_req0_irqdispatch();
+	else if (pending  & CAUSEF_IP5)
+		intc1_req1_irqdispatch();
+	else
+		spurious_interrupt();
+}