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Diffstat (limited to 'arch/sparc/kernel/leon_kernel.c')
-rw-r--r--arch/sparc/kernel/leon_kernel.c156
1 files changed, 72 insertions, 84 deletions
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 5d7e41c1936..d8fafeacb49 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -37,7 +37,7 @@ unsigned long leon3_gptimer_irq; /* interrupt controller irq number */
unsigned long leon3_gptimer_idx; /* Timer Index (0..6) within Timer Core */
int leon3_ticker_irq; /* Timer ticker IRQ */
unsigned int sparc_leon_eirq;
-#define LEON_IMASK (&leon3_irqctrl_regs->mask[0])
+#define LEON_IMASK(cpu) (&leon3_irqctrl_regs->mask[cpu])
#define LEON_IACK (&leon3_irqctrl_regs->iclear)
#define LEON_DO_ACK_HW 1
@@ -79,8 +79,8 @@ void leon_eirq_setup(unsigned int eirq)
*/
irq_link(veirq);
mask = 1 << eirq;
- oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK);
- LEON3_BYPASS_STORE_PA(LEON_IMASK, (oldmask | mask));
+ oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(0));
+ LEON3_BYPASS_STORE_PA(LEON_IMASK(0), (oldmask | mask));
sparc_leon_eirq = eirq;
}
@@ -101,23 +101,23 @@ static inline unsigned long get_irqmask(unsigned int irq)
static void leon_unmask_irq(struct irq_data *data)
{
- unsigned long mask, flags;
+ unsigned long mask, oldmask, flags;
mask = (unsigned long)data->chip_data;
spin_lock_irqsave(&leon_irq_lock, flags);
- LEON3_BYPASS_STORE_PA(LEON_IMASK,
- (LEON3_BYPASS_LOAD_PA(LEON_IMASK) | (mask)));
+ oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(0));
+ LEON3_BYPASS_STORE_PA(LEON_IMASK(0), (oldmask | mask));
spin_unlock_irqrestore(&leon_irq_lock, flags);
}
static void leon_mask_irq(struct irq_data *data)
{
- unsigned long mask, flags;
+ unsigned long mask, oldmask, flags;
mask = (unsigned long)data->chip_data;
spin_lock_irqsave(&leon_irq_lock, flags);
- LEON3_BYPASS_STORE_PA(LEON_IMASK,
- (LEON3_BYPASS_LOAD_PA(LEON_IMASK) & ~(mask)));
+ oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(0));
+ LEON3_BYPASS_STORE_PA(LEON_IMASK(0), (oldmask & ~mask));
spin_unlock_irqrestore(&leon_irq_lock, flags);
}
@@ -261,92 +261,83 @@ void __init leon_init_timers(irq_handler_t counter_fn)
leon3_gptimer_irq = *(unsigned int *)pp->value;
} while (0);
- if (leon3_gptimer_regs && leon3_irqctrl_regs && leon3_gptimer_irq) {
- LEON3_BYPASS_STORE_PA(
- &leon3_gptimer_regs->e[leon3_gptimer_idx].val, 0);
- LEON3_BYPASS_STORE_PA(
- &leon3_gptimer_regs->e[leon3_gptimer_idx].rld,
- (((1000000 / HZ) - 1)));
- LEON3_BYPASS_STORE_PA(
+ if (!(leon3_gptimer_regs && leon3_irqctrl_regs && leon3_gptimer_irq))
+ goto bad;
+
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].val, 0);
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].rld,
+ (((1000000 / HZ) - 1)));
+ LEON3_BYPASS_STORE_PA(
&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, 0);
#ifdef CONFIG_SMP
- leon3_ticker_irq = leon3_gptimer_irq + 1 + leon3_gptimer_idx;
-
- if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) &
- (1<<LEON3_GPTIMER_SEPIRQ))) {
- prom_printf("irq timer not configured with separate irqs\n");
- BUG();
- }
+ leon3_ticker_irq = leon3_gptimer_irq + 1 + leon3_gptimer_idx;
- LEON3_BYPASS_STORE_PA(
- &leon3_gptimer_regs->e[leon3_gptimer_idx+1].val, 0);
- LEON3_BYPASS_STORE_PA(
- &leon3_gptimer_regs->e[leon3_gptimer_idx+1].rld,
- (((1000000/HZ) - 1)));
- LEON3_BYPASS_STORE_PA(
- &leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl, 0);
-# endif
-
- /*
- * The IRQ controller may (if implemented) consist of multiple
- * IRQ controllers, each mapped on a 4Kb boundary.
- * Each CPU may be routed to different IRQCTRLs, however
- * we assume that all CPUs (in SMP system) is routed to the
- * same IRQ Controller, and for non-SMP only one IRQCTRL is
- * accessed anyway.
- * In AMP systems, Linux must run on CPU0 for the time being.
- */
- cpu = sparc_leon3_cpuid();
- icsel = LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->icsel[cpu/8]);
- icsel = (icsel >> ((7 - (cpu&0x7)) * 4)) & 0xf;
- leon3_irqctrl_regs += icsel;
-
- /* Probe extended IRQ controller */
- eirq = (LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->mpstatus)
- >> 16) & 0xf;
- if (eirq != 0)
- leon_eirq_setup(eirq);
- } else {
- goto bad;
+ if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) &
+ (1<<LEON3_GPTIMER_SEPIRQ))) {
+ printk(KERN_ERR "timer not configured with separate irqs\n");
+ BUG();
}
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].val,
+ 0);
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].rld,
+ (((1000000/HZ) - 1)));
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl,
+ 0);
+#endif
+
+ /*
+ * The IRQ controller may (if implemented) consist of multiple
+ * IRQ controllers, each mapped on a 4Kb boundary.
+ * Each CPU may be routed to different IRQCTRLs, however
+ * we assume that all CPUs (in SMP system) is routed to the
+ * same IRQ Controller, and for non-SMP only one IRQCTRL is
+ * accessed anyway.
+ * In AMP systems, Linux must run on CPU0 for the time being.
+ */
+ cpu = sparc_leon3_cpuid();
+ icsel = LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->icsel[cpu/8]);
+ icsel = (icsel >> ((7 - (cpu&0x7)) * 4)) & 0xf;
+ leon3_irqctrl_regs += icsel;
+
+ /* Probe extended IRQ controller */
+ eirq = (LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->mpstatus)
+ >> 16) & 0xf;
+ if (eirq != 0)
+ leon_eirq_setup(eirq);
+
irq = _leon_build_device_irq(NULL, leon3_gptimer_irq+leon3_gptimer_idx);
err = request_irq(irq, counter_fn, IRQF_TIMER, "timer", NULL);
-
if (err) {
- printk(KERN_ERR "leon_time_init: unable to attach IRQ%d\n",
- irq);
+ printk(KERN_ERR "unable to attach timer IRQ%d\n", irq);
prom_halt();
}
- if (leon3_gptimer_regs) {
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl,
- LEON3_GPTIMER_EN |
- LEON3_GPTIMER_RL |
- LEON3_GPTIMER_LD | LEON3_GPTIMER_IRQEN);
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl,
+ LEON3_GPTIMER_EN |
+ LEON3_GPTIMER_RL |
+ LEON3_GPTIMER_LD |
+ LEON3_GPTIMER_IRQEN);
#ifdef CONFIG_SMP
- /* Install per-cpu IRQ handler for broadcasted ticker */
- irq = leon_build_device_irq(leon3_ticker_irq,
- handle_percpu_irq, "per-cpu",
- 0);
- err = request_irq(irq, leon_percpu_timer_interrupt,
- IRQF_PERCPU | IRQF_TIMER, "ticker",
- NULL);
- if (err) {
- printk(KERN_ERR "unable to attach ticker IRQ%d\n", irq);
- prom_halt();
- }
+ /* Install per-cpu IRQ handler for broadcasted ticker */
+ irq = leon_build_device_irq(leon3_ticker_irq, handle_percpu_irq,
+ "per-cpu", 0);
+ err = request_irq(irq, leon_percpu_timer_interrupt,
+ IRQF_PERCPU | IRQF_TIMER, "ticker",
+ NULL);
+ if (err) {
+ printk(KERN_ERR "unable to attach ticker IRQ%d\n", irq);
+ prom_halt();
+ }
- LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl,
- LEON3_GPTIMER_EN |
- LEON3_GPTIMER_RL |
- LEON3_GPTIMER_LD |
- LEON3_GPTIMER_IRQEN);
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl,
+ LEON3_GPTIMER_EN |
+ LEON3_GPTIMER_RL |
+ LEON3_GPTIMER_LD |
+ LEON3_GPTIMER_IRQEN);
#endif
-
- }
return;
bad:
printk(KERN_ERR "No Timer/irqctrl found\n");
@@ -363,9 +354,6 @@ void leon_load_profile_irq(int cpu, unsigned int limit)
BUG();
}
-
-
-
void __init leon_trans_init(struct device_node *dp)
{
if (strcmp(dp->type, "cpu") == 0 && strcmp(dp->name, "<NULL>") == 0) {
@@ -420,8 +408,8 @@ void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu)
unsigned long mask, flags, *addr;
mask = get_irqmask(irq_nr);
spin_lock_irqsave(&leon_irq_lock, flags);
- addr = (unsigned long *)&(leon3_irqctrl_regs->mask[cpu]);
- LEON3_BYPASS_STORE_PA(addr, (LEON3_BYPASS_LOAD_PA(addr) | (mask)));
+ addr = (unsigned long *)LEON_IMASK(cpu);
+ LEON3_BYPASS_STORE_PA(addr, (LEON3_BYPASS_LOAD_PA(addr) | mask));
spin_unlock_irqrestore(&leon_irq_lock, flags);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-26 19:09:27 +0000