aboutsummaryrefslogtreecommitdiffstats
path: root/arch/mips/bcm63xx/irq.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/bcm63xx/irq.c')
-rw-r--r--arch/mips/bcm63xx/irq.c558
1 files changed, 269 insertions, 289 deletions
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index 1525f8a3841b..37eb2d1fa69a 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -12,6 +12,7 @@
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/irq.h>
+#include <linux/spinlock.h>
#include <asm/irq_cpu.h>
#include <asm/mipsregs.h>
#include <bcm63xx_cpu.h>
@@ -19,222 +20,20 @@
#include <bcm63xx_io.h>
#include <bcm63xx_irq.h>
-static void __dispatch_internal(void) __maybe_unused;
-static void __dispatch_internal_64(void) __maybe_unused;
-static void __internal_irq_mask_32(unsigned int irq) __maybe_unused;
-static void __internal_irq_mask_64(unsigned int irq) __maybe_unused;
-static void __internal_irq_unmask_32(unsigned int irq) __maybe_unused;
-static void __internal_irq_unmask_64(unsigned int irq) __maybe_unused;
-
-#ifndef BCMCPU_RUNTIME_DETECT
-#ifdef CONFIG_BCM63XX_CPU_3368
-#define irq_stat_reg PERF_IRQSTAT_3368_REG
-#define irq_mask_reg PERF_IRQMASK_3368_REG
-#define irq_bits 32
-#define is_ext_irq_cascaded 0
-#define ext_irq_start 0
-#define ext_irq_end 0
-#define ext_irq_count 4
-#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_3368
-#define ext_irq_cfg_reg2 0
-#endif
-#ifdef CONFIG_BCM63XX_CPU_6328
-#define irq_stat_reg PERF_IRQSTAT_6328_REG
-#define irq_mask_reg PERF_IRQMASK_6328_REG
-#define irq_bits 64
-#define is_ext_irq_cascaded 1
-#define ext_irq_start (BCM_6328_EXT_IRQ0 - IRQ_INTERNAL_BASE)
-#define ext_irq_end (BCM_6328_EXT_IRQ3 - IRQ_INTERNAL_BASE)
-#define ext_irq_count 4
-#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6328
-#define ext_irq_cfg_reg2 0
-#endif
-#ifdef CONFIG_BCM63XX_CPU_6338
-#define irq_stat_reg PERF_IRQSTAT_6338_REG
-#define irq_mask_reg PERF_IRQMASK_6338_REG
-#define irq_bits 32
-#define is_ext_irq_cascaded 0
-#define ext_irq_start 0
-#define ext_irq_end 0
-#define ext_irq_count 4
-#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6338
-#define ext_irq_cfg_reg2 0
-#endif
-#ifdef CONFIG_BCM63XX_CPU_6345
-#define irq_stat_reg PERF_IRQSTAT_6345_REG
-#define irq_mask_reg PERF_IRQMASK_6345_REG
-#define irq_bits 32
-#define is_ext_irq_cascaded 0
-#define ext_irq_start 0
-#define ext_irq_end 0
-#define ext_irq_count 4
-#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6345
-#define ext_irq_cfg_reg2 0
-#endif
-#ifdef CONFIG_BCM63XX_CPU_6348
-#define irq_stat_reg PERF_IRQSTAT_6348_REG
-#define irq_mask_reg PERF_IRQMASK_6348_REG
-#define irq_bits 32
-#define is_ext_irq_cascaded 0
-#define ext_irq_start 0
-#define ext_irq_end 0
-#define ext_irq_count 4
-#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6348
-#define ext_irq_cfg_reg2 0
-#endif
-#ifdef CONFIG_BCM63XX_CPU_6358
-#define irq_stat_reg PERF_IRQSTAT_6358_REG
-#define irq_mask_reg PERF_IRQMASK_6358_REG
-#define irq_bits 32
-#define is_ext_irq_cascaded 1
-#define ext_irq_start (BCM_6358_EXT_IRQ0 - IRQ_INTERNAL_BASE)
-#define ext_irq_end (BCM_6358_EXT_IRQ3 - IRQ_INTERNAL_BASE)
-#define ext_irq_count 4
-#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6358
-#define ext_irq_cfg_reg2 0
-#endif
-#ifdef CONFIG_BCM63XX_CPU_6362
-#define irq_stat_reg PERF_IRQSTAT_6362_REG
-#define irq_mask_reg PERF_IRQMASK_6362_REG
-#define irq_bits 64
-#define is_ext_irq_cascaded 1
-#define ext_irq_start (BCM_6362_EXT_IRQ0 - IRQ_INTERNAL_BASE)
-#define ext_irq_end (BCM_6362_EXT_IRQ3 - IRQ_INTERNAL_BASE)
-#define ext_irq_count 4
-#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6362
-#define ext_irq_cfg_reg2 0
-#endif
-#ifdef CONFIG_BCM63XX_CPU_6368
-#define irq_stat_reg PERF_IRQSTAT_6368_REG
-#define irq_mask_reg PERF_IRQMASK_6368_REG
-#define irq_bits 64
-#define is_ext_irq_cascaded 1
-#define ext_irq_start (BCM_6368_EXT_IRQ0 - IRQ_INTERNAL_BASE)
-#define ext_irq_end (BCM_6368_EXT_IRQ5 - IRQ_INTERNAL_BASE)
-#define ext_irq_count 6
-#define ext_irq_cfg_reg1 PERF_EXTIRQ_CFG_REG_6368
-#define ext_irq_cfg_reg2 PERF_EXTIRQ_CFG_REG2_6368
-#endif
-
-#if irq_bits == 32
-#define dispatch_internal __dispatch_internal
-#define internal_irq_mask __internal_irq_mask_32
-#define internal_irq_unmask __internal_irq_unmask_32
-#else
-#define dispatch_internal __dispatch_internal_64
-#define internal_irq_mask __internal_irq_mask_64
-#define internal_irq_unmask __internal_irq_unmask_64
-#endif
-#define irq_stat_addr (bcm63xx_regset_address(RSET_PERF) + irq_stat_reg)
-#define irq_mask_addr (bcm63xx_regset_address(RSET_PERF) + irq_mask_reg)
+static DEFINE_SPINLOCK(ipic_lock);
+static DEFINE_SPINLOCK(epic_lock);
-static inline void bcm63xx_init_irq(void)
-{
-}
-#else /* ! BCMCPU_RUNTIME_DETECT */
-
-static u32 irq_stat_addr, irq_mask_addr;
-static void (*dispatch_internal)(void);
+static u32 irq_stat_addr[2];
+static u32 irq_mask_addr[2];
+static void (*dispatch_internal)(int cpu);
static int is_ext_irq_cascaded;
static unsigned int ext_irq_count;
static unsigned int ext_irq_start, ext_irq_end;
static unsigned int ext_irq_cfg_reg1, ext_irq_cfg_reg2;
-static void (*internal_irq_mask)(unsigned int irq);
-static void (*internal_irq_unmask)(unsigned int irq);
+static void (*internal_irq_mask)(struct irq_data *d);
+static void (*internal_irq_unmask)(struct irq_data *d, const struct cpumask *m);
-static void bcm63xx_init_irq(void)
-{
- int irq_bits;
-
- irq_stat_addr = bcm63xx_regset_address(RSET_PERF);
- irq_mask_addr = bcm63xx_regset_address(RSET_PERF);
-
- switch (bcm63xx_get_cpu_id()) {
- case BCM3368_CPU_ID:
- irq_stat_addr += PERF_IRQSTAT_3368_REG;
- irq_mask_addr += PERF_IRQMASK_3368_REG;
- irq_bits = 32;
- ext_irq_count = 4;
- ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_3368;
- break;
- case BCM6328_CPU_ID:
- irq_stat_addr += PERF_IRQSTAT_6328_REG;
- irq_mask_addr += PERF_IRQMASK_6328_REG;
- irq_bits = 64;
- ext_irq_count = 4;
- is_ext_irq_cascaded = 1;
- ext_irq_start = BCM_6328_EXT_IRQ0 - IRQ_INTERNAL_BASE;
- ext_irq_end = BCM_6328_EXT_IRQ3 - IRQ_INTERNAL_BASE;
- ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6328;
- break;
- case BCM6338_CPU_ID:
- irq_stat_addr += PERF_IRQSTAT_6338_REG;
- irq_mask_addr += PERF_IRQMASK_6338_REG;
- irq_bits = 32;
- ext_irq_count = 4;
- ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6338;
- break;
- case BCM6345_CPU_ID:
- irq_stat_addr += PERF_IRQSTAT_6345_REG;
- irq_mask_addr += PERF_IRQMASK_6345_REG;
- irq_bits = 32;
- ext_irq_count = 4;
- ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6345;
- break;
- case BCM6348_CPU_ID:
- irq_stat_addr += PERF_IRQSTAT_6348_REG;
- irq_mask_addr += PERF_IRQMASK_6348_REG;
- irq_bits = 32;
- ext_irq_count = 4;
- ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6348;
- break;
- case BCM6358_CPU_ID:
- irq_stat_addr += PERF_IRQSTAT_6358_REG;
- irq_mask_addr += PERF_IRQMASK_6358_REG;
- irq_bits = 32;
- ext_irq_count = 4;
- is_ext_irq_cascaded = 1;
- ext_irq_start = BCM_6358_EXT_IRQ0 - IRQ_INTERNAL_BASE;
- ext_irq_end = BCM_6358_EXT_IRQ3 - IRQ_INTERNAL_BASE;
- ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6358;
- break;
- case BCM6362_CPU_ID:
- irq_stat_addr += PERF_IRQSTAT_6362_REG;
- irq_mask_addr += PERF_IRQMASK_6362_REG;
- irq_bits = 64;
- ext_irq_count = 4;
- is_ext_irq_cascaded = 1;
- ext_irq_start = BCM_6362_EXT_IRQ0 - IRQ_INTERNAL_BASE;
- ext_irq_end = BCM_6362_EXT_IRQ3 - IRQ_INTERNAL_BASE;
- ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6362;
- break;
- case BCM6368_CPU_ID:
- irq_stat_addr += PERF_IRQSTAT_6368_REG;
- irq_mask_addr += PERF_IRQMASK_6368_REG;
- irq_bits = 64;
- ext_irq_count = 6;
- is_ext_irq_cascaded = 1;
- ext_irq_start = BCM_6368_EXT_IRQ0 - IRQ_INTERNAL_BASE;
- ext_irq_end = BCM_6368_EXT_IRQ5 - IRQ_INTERNAL_BASE;
- ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6368;
- ext_irq_cfg_reg2 = PERF_EXTIRQ_CFG_REG2_6368;
- break;
- default:
- BUG();
- }
-
- if (irq_bits == 32) {
- dispatch_internal = __dispatch_internal;
- internal_irq_mask = __internal_irq_mask_32;
- internal_irq_unmask = __internal_irq_unmask_32;
- } else {
- dispatch_internal = __dispatch_internal_64;
- internal_irq_mask = __internal_irq_mask_64;
- internal_irq_unmask = __internal_irq_unmask_64;
- }
-}
-#endif /* ! BCMCPU_RUNTIME_DETECT */
static inline u32 get_ext_irq_perf_reg(int irq)
{
@@ -252,53 +51,113 @@ static inline void handle_internal(int intbit)
do_IRQ(intbit + IRQ_INTERNAL_BASE);
}
+static inline int enable_irq_for_cpu(int cpu, struct irq_data *d,
+ const struct cpumask *m)
+{
+ bool enable = cpu_online(cpu);
+
+#ifdef CONFIG_SMP
+ if (m)
+ enable &= cpu_isset(cpu, *m);
+ else if (irqd_affinity_was_set(d))
+ enable &= cpu_isset(cpu, *d->affinity);
+#endif
+ return enable;
+}
+
/*
* dispatch internal devices IRQ (uart, enet, watchdog, ...). do not
* prioritize any interrupt relatively to another. the static counter
* will resume the loop where it ended the last time we left this
* function.
*/
-static void __dispatch_internal(void)
-{
- u32 pending;
- static int i;
-
- pending = bcm_readl(irq_stat_addr) & bcm_readl(irq_mask_addr);
- if (!pending)
- return ;
-
- while (1) {
- int to_call = i;
-
- i = (i + 1) & 0x1f;
- if (pending & (1 << to_call)) {
- handle_internal(to_call);
- break;
- }
- }
+#define BUILD_IPIC_INTERNAL(width) \
+void __dispatch_internal_##width(int cpu) \
+{ \
+ u32 pending[width / 32]; \
+ unsigned int src, tgt; \
+ bool irqs_pending = false; \
+ static unsigned int i[2]; \
+ unsigned int *next = &i[cpu]; \
+ unsigned long flags; \
+ \
+ /* read registers in reverse order */ \
+ spin_lock_irqsave(&ipic_lock, flags); \
+ for (src = 0, tgt = (width / 32); src < (width / 32); src++) { \
+ u32 val; \
+ \
+ val = bcm_readl(irq_stat_addr[cpu] + src * sizeof(u32)); \
+ val &= bcm_readl(irq_mask_addr[cpu] + src * sizeof(u32)); \
+ pending[--tgt] = val; \
+ \
+ if (val) \
+ irqs_pending = true; \
+ } \
+ spin_unlock_irqrestore(&ipic_lock, flags); \
+ \
+ if (!irqs_pending) \
+ return; \
+ \
+ while (1) { \
+ unsigned int to_call = *next; \
+ \
+ *next = (*next + 1) & (width - 1); \
+ if (pending[to_call / 32] & (1 << (to_call & 0x1f))) { \
+ handle_internal(to_call); \
+ break; \
+ } \
+ } \
+} \
+ \
+static void __internal_irq_mask_##width(struct irq_data *d) \
+{ \
+ u32 val; \
+ unsigned irq = d->irq - IRQ_INTERNAL_BASE; \
+ unsigned reg = (irq / 32) ^ (width/32 - 1); \
+ unsigned bit = irq & 0x1f; \
+ unsigned long flags; \
+ int cpu; \
+ \
+ spin_lock_irqsave(&ipic_lock, flags); \
+ for_each_present_cpu(cpu) { \
+ if (!irq_mask_addr[cpu]) \
+ break; \
+ \
+ val = bcm_readl(irq_mask_addr[cpu] + reg * sizeof(u32));\
+ val &= ~(1 << bit); \
+ bcm_writel(val, irq_mask_addr[cpu] + reg * sizeof(u32));\
+ } \
+ spin_unlock_irqrestore(&ipic_lock, flags); \
+} \
+ \
+static void __internal_irq_unmask_##width(struct irq_data *d, \
+ const struct cpumask *m) \
+{ \
+ u32 val; \
+ unsigned irq = d->irq - IRQ_INTERNAL_BASE; \
+ unsigned reg = (irq / 32) ^ (width/32 - 1); \
+ unsigned bit = irq & 0x1f; \
+ unsigned long flags; \
+ int cpu; \
+ \
+ spin_lock_irqsave(&ipic_lock, flags); \
+ for_each_present_cpu(cpu) { \
+ if (!irq_mask_addr[cpu]) \
+ break; \
+ \
+ val = bcm_readl(irq_mask_addr[cpu] + reg * sizeof(u32));\
+ if (enable_irq_for_cpu(cpu, d, m)) \
+ val |= (1 << bit); \
+ else \
+ val &= ~(1 << bit); \
+ bcm_writel(val, irq_mask_addr[cpu] + reg * sizeof(u32));\
+ } \
+ spin_unlock_irqrestore(&ipic_lock, flags); \
}
-static void __dispatch_internal_64(void)
-{
- u64 pending;
- static int i;
-
- pending = bcm_readq(irq_stat_addr) & bcm_readq(irq_mask_addr);
-
- if (!pending)
- return ;
-
- while (1) {
- int to_call = i;
-
- i = (i + 1) & 0x3f;
- if (pending & (1ull << to_call)) {
- handle_internal(to_call);
- break;
- }
- }
-}
+BUILD_IPIC_INTERNAL(32);
+BUILD_IPIC_INTERNAL(64);
asmlinkage void plat_irq_dispatch(void)
{
@@ -317,8 +176,11 @@ asmlinkage void plat_irq_dispatch(void)
if (cause & CAUSEF_IP1)
do_IRQ(1);
if (cause & CAUSEF_IP2)
- dispatch_internal();
- if (!is_ext_irq_cascaded) {
+ dispatch_internal(0);
+ if (is_ext_irq_cascaded) {
+ if (cause & CAUSEF_IP3)
+ dispatch_internal(1);
+ } else {
if (cause & CAUSEF_IP3)
do_IRQ(IRQ_EXT_0);
if (cause & CAUSEF_IP4)
@@ -335,50 +197,14 @@ asmlinkage void plat_irq_dispatch(void)
* internal IRQs operations: only mask/unmask on PERF irq mask
* register.
*/
-static void __internal_irq_mask_32(unsigned int irq)
-{
- u32 mask;
-
- mask = bcm_readl(irq_mask_addr);
- mask &= ~(1 << irq);
- bcm_writel(mask, irq_mask_addr);
-}
-
-static void __internal_irq_mask_64(unsigned int irq)
-{
- u64 mask;
-
- mask = bcm_readq(irq_mask_addr);
- mask &= ~(1ull << irq);
- bcm_writeq(mask, irq_mask_addr);
-}
-
-static void __internal_irq_unmask_32(unsigned int irq)
-{
- u32 mask;
-
- mask = bcm_readl(irq_mask_addr);
- mask |= (1 << irq);
- bcm_writel(mask, irq_mask_addr);
-}
-
-static void __internal_irq_unmask_64(unsigned int irq)
-{
- u64 mask;
-
- mask = bcm_readq(irq_mask_addr);
- mask |= (1ull << irq);
- bcm_writeq(mask, irq_mask_addr);
-}
-
static void bcm63xx_internal_irq_mask(struct irq_data *d)
{
- internal_irq_mask(d->irq - IRQ_INTERNAL_BASE);
+ internal_irq_mask(d);
}
static void bcm63xx_internal_irq_unmask(struct irq_data *d)
{
- internal_irq_unmask(d->irq - IRQ_INTERNAL_BASE);
+ internal_irq_unmask(d, NULL);
}
/*
@@ -389,8 +215,10 @@ static void bcm63xx_external_irq_mask(struct irq_data *d)
{
unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
u32 reg, regaddr;
+ unsigned long flags;
regaddr = get_ext_irq_perf_reg(irq);
+ spin_lock_irqsave(&epic_lock, flags);
reg = bcm_perf_readl(regaddr);
if (BCMCPU_IS_6348())
@@ -399,16 +227,20 @@ static void bcm63xx_external_irq_mask(struct irq_data *d)
reg &= ~EXTIRQ_CFG_MASK(irq % 4);
bcm_perf_writel(reg, regaddr);
+ spin_unlock_irqrestore(&epic_lock, flags);
+
if (is_ext_irq_cascaded)
- internal_irq_mask(irq + ext_irq_start);
+ internal_irq_mask(irq_get_irq_data(irq + ext_irq_start));
}
static void bcm63xx_external_irq_unmask(struct irq_data *d)
{
unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
u32 reg, regaddr;
+ unsigned long flags;
regaddr = get_ext_irq_perf_reg(irq);
+ spin_lock_irqsave(&epic_lock, flags);
reg = bcm_perf_readl(regaddr);
if (BCMCPU_IS_6348())
@@ -417,17 +249,21 @@ static void bcm63xx_external_irq_unmask(struct irq_data *d)
reg |= EXTIRQ_CFG_MASK(irq % 4);
bcm_perf_writel(reg, regaddr);
+ spin_unlock_irqrestore(&epic_lock, flags);
if (is_ext_irq_cascaded)
- internal_irq_unmask(irq + ext_irq_start);
+ internal_irq_unmask(irq_get_irq_data(irq + ext_irq_start),
+ NULL);
}
static void bcm63xx_external_irq_clear(struct irq_data *d)
{
unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
u32 reg, regaddr;
+ unsigned long flags;
regaddr = get_ext_irq_perf_reg(irq);
+ spin_lock_irqsave(&epic_lock, flags);
reg = bcm_perf_readl(regaddr);
if (BCMCPU_IS_6348())
@@ -436,6 +272,7 @@ static void bcm63xx_external_irq_clear(struct irq_data *d)
reg |= EXTIRQ_CFG_CLEAR(irq % 4);
bcm_perf_writel(reg, regaddr);
+ spin_unlock_irqrestore(&epic_lock, flags);
}
static int bcm63xx_external_irq_set_type(struct irq_data *d,
@@ -444,6 +281,7 @@ static int bcm63xx_external_irq_set_type(struct irq_data *d,
unsigned int irq = d->irq - IRQ_EXTERNAL_BASE;
u32 reg, regaddr;
int levelsense, sense, bothedge;
+ unsigned long flags;
flow_type &= IRQ_TYPE_SENSE_MASK;
@@ -478,6 +316,7 @@ static int bcm63xx_external_irq_set_type(struct irq_data *d,
}
regaddr = get_ext_irq_perf_reg(irq);
+ spin_lock_irqsave(&epic_lock, flags);
reg = bcm_perf_readl(regaddr);
irq %= 4;
@@ -522,6 +361,7 @@ static int bcm63xx_external_irq_set_type(struct irq_data *d,
}
bcm_perf_writel(reg, regaddr);
+ spin_unlock_irqrestore(&epic_lock, flags);
irqd_set_trigger_type(d, flow_type);
if (flow_type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
@@ -532,6 +372,18 @@ static int bcm63xx_external_irq_set_type(struct irq_data *d,
return IRQ_SET_MASK_OK_NOCOPY;
}
+#ifdef CONFIG_SMP
+static int bcm63xx_internal_set_affinity(struct irq_data *data,
+ const struct cpumask *dest,
+ bool force)
+{
+ if (!irqd_irq_disabled(data))
+ internal_irq_unmask(data, dest);
+
+ return 0;
+}
+#endif
+
static struct irq_chip bcm63xx_internal_irq_chip = {
.name = "bcm63xx_ipic",
.irq_mask = bcm63xx_internal_irq_mask,
@@ -554,12 +406,130 @@ static struct irqaction cpu_ip2_cascade_action = {
.flags = IRQF_NO_THREAD,
};
+#ifdef CONFIG_SMP
+static struct irqaction cpu_ip3_cascade_action = {
+ .handler = no_action,
+ .name = "cascade_ip3",
+ .flags = IRQF_NO_THREAD,
+};
+#endif
+
static struct irqaction cpu_ext_cascade_action = {
.handler = no_action,
.name = "cascade_extirq",
.flags = IRQF_NO_THREAD,
};
+static void bcm63xx_init_irq(void)
+{
+ int irq_bits;
+
+ irq_stat_addr[0] = bcm63xx_regset_address(RSET_PERF);
+ irq_mask_addr[0] = bcm63xx_regset_address(RSET_PERF);
+ irq_stat_addr[1] = bcm63xx_regset_address(RSET_PERF);
+ irq_mask_addr[1] = bcm63xx_regset_address(RSET_PERF);
+
+ switch (bcm63xx_get_cpu_id()) {
+ case BCM3368_CPU_ID:
+ irq_stat_addr[0] += PERF_IRQSTAT_3368_REG;
+ irq_mask_addr[0] += PERF_IRQMASK_3368_REG;
+ irq_stat_addr[1] = 0;
+ irq_stat_addr[1] = 0;
+ irq_bits = 32;
+ ext_irq_count = 4;
+ ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_3368;
+ break;
+ case BCM6328_CPU_ID:
+ irq_stat_addr[0] += PERF_IRQSTAT_6328_REG(0);
+ irq_mask_addr[0] += PERF_IRQMASK_6328_REG(0);
+ irq_stat_addr[1] += PERF_IRQSTAT_6328_REG(1);
+ irq_stat_addr[1] += PERF_IRQMASK_6328_REG(1);
+ irq_bits = 64;
+ ext_irq_count = 4;
+ is_ext_irq_cascaded = 1;
+ ext_irq_start = BCM_6328_EXT_IRQ0 - IRQ_INTERNAL_BASE;
+ ext_irq_end = BCM_6328_EXT_IRQ3 - IRQ_INTERNAL_BASE;
+ ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6328;
+ break;
+ case BCM6338_CPU_ID:
+ irq_stat_addr[0] += PERF_IRQSTAT_6338_REG;
+ irq_mask_addr[0] += PERF_IRQMASK_6338_REG;
+ irq_stat_addr[1] = 0;
+ irq_mask_addr[1] = 0;
+ irq_bits = 32;
+ ext_irq_count = 4;
+ ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6338;
+ break;
+ case BCM6345_CPU_ID:
+ irq_stat_addr[0] += PERF_IRQSTAT_6345_REG;
+ irq_mask_addr[0] += PERF_IRQMASK_6345_REG;
+ irq_stat_addr[1] = 0;
+ irq_mask_addr[1] = 0;
+ irq_bits = 32;
+ ext_irq_count = 4;
+ ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6345;
+ break;
+ case BCM6348_CPU_ID:
+ irq_stat_addr[0] += PERF_IRQSTAT_6348_REG;
+ irq_mask_addr[0] += PERF_IRQMASK_6348_REG;
+ irq_stat_addr[1] = 0;
+ irq_mask_addr[1] = 0;
+ irq_bits = 32;
+ ext_irq_count = 4;
+ ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6348;
+ break;
+ case BCM6358_CPU_ID:
+ irq_stat_addr[0] += PERF_IRQSTAT_6358_REG(0);
+ irq_mask_addr[0] += PERF_IRQMASK_6358_REG(0);
+ irq_stat_addr[1] += PERF_IRQSTAT_6358_REG(1);
+ irq_mask_addr[1] += PERF_IRQMASK_6358_REG(1);
+ irq_bits = 32;
+ ext_irq_count = 4;
+ is_ext_irq_cascaded = 1;
+ ext_irq_start = BCM_6358_EXT_IRQ0 - IRQ_INTERNAL_BASE;
+ ext_irq_end = BCM_6358_EXT_IRQ3 - IRQ_INTERNAL_BASE;
+ ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6358;
+ break;
+ case BCM6362_CPU_ID:
+ irq_stat_addr[0] += PERF_IRQSTAT_6362_REG(0);
+ irq_mask_addr[0] += PERF_IRQMASK_6362_REG(0);
+ irq_stat_addr[1] += PERF_IRQSTAT_6362_REG(1);
+ irq_mask_addr[1] += PERF_IRQMASK_6362_REG(1);
+ irq_bits = 64;
+ ext_irq_count = 4;
+ is_ext_irq_cascaded = 1;
+ ext_irq_start = BCM_6362_EXT_IRQ0 - IRQ_INTERNAL_BASE;
+ ext_irq_end = BCM_6362_EXT_IRQ3 - IRQ_INTERNAL_BASE;
+ ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6362;
+ break;
+ case BCM6368_CPU_ID:
+ irq_stat_addr[0] += PERF_IRQSTAT_6368_REG(0);
+ irq_mask_addr[0] += PERF_IRQMASK_6368_REG(0);
+ irq_stat_addr[1] += PERF_IRQSTAT_6368_REG(1);
+ irq_mask_addr[1] += PERF_IRQMASK_6368_REG(1);
+ irq_bits = 64;
+ ext_irq_count = 6;
+ is_ext_irq_cascaded = 1;
+ ext_irq_start = BCM_6368_EXT_IRQ0 - IRQ_INTERNAL_BASE;
+ ext_irq_end = BCM_6368_EXT_IRQ5 - IRQ_INTERNAL_BASE;
+ ext_irq_cfg_reg1 = PERF_EXTIRQ_CFG_REG_6368;
+ ext_irq_cfg_reg2 = PERF_EXTIRQ_CFG_REG2_6368;
+ break;
+ default:
+ BUG();
+ }
+
+ if (irq_bits == 32) {
+ dispatch_internal = __dispatch_internal_32;
+ internal_irq_mask = __internal_irq_mask_32;
+ internal_irq_unmask = __internal_irq_unmask_32;
+ } else {
+ dispatch_internal = __dispatch_internal_64;
+ internal_irq_mask = __internal_irq_mask_64;
+ internal_irq_unmask = __internal_irq_unmask_64;
+ }
+}
+
void __init arch_init_irq(void)
{
int i;
@@ -580,4 +550,14 @@ void __init arch_init_irq(void)
}
setup_irq(MIPS_CPU_IRQ_BASE + 2, &cpu_ip2_cascade_action);
+#ifdef CONFIG_SMP
+ if (is_ext_irq_cascaded) {
+ setup_irq(MIPS_CPU_IRQ_BASE + 3, &cpu_ip3_cascade_action);
+ bcm63xx_internal_irq_chip.irq_set_affinity =
+ bcm63xx_internal_set_affinity;
+
+ cpumask_clear(irq_default_affinity);
+ cpumask_set_cpu(smp_processor_id(), irq_default_affinity);
+ }
+#endif
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.