2012-09-01 05:13:07 +08:00
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2008 Ralf Baechle (ralf@linux-mips.org)
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* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
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*/
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2008-04-29 00:14:26 +08:00
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#include <linux/bitmap.h>
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#include <linux/init.h>
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2009-06-19 21:05:26 +08:00
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#include <linux/smp.h>
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2010-10-07 21:08:54 +08:00
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#include <linux/irq.h>
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2013-04-11 05:28:36 +08:00
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#include <linux/clocksource.h>
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2008-04-29 00:14:26 +08:00
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#include <asm/io.h>
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#include <asm/gic.h>
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2012-09-01 05:18:49 +08:00
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#include <asm/setup.h>
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#include <asm/traps.h>
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2008-04-29 00:14:26 +08:00
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#include <linux/hardirq.h>
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#include <asm-generic/bitops/find.h>
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2013-04-11 05:27:50 +08:00
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unsigned int gic_frequency;
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2013-04-11 05:27:04 +08:00
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unsigned int gic_present;
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2012-09-01 05:05:37 +08:00
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unsigned long _gic_base;
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unsigned int gic_irq_base;
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unsigned int gic_irq_flags[GIC_NUM_INTRS];
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2008-04-29 00:14:26 +08:00
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2012-09-01 05:18:49 +08:00
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/* The index into this array is the vector # of the interrupt. */
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struct gic_shared_intr_map gic_shared_intr_map[GIC_NUM_INTRS];
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2014-07-17 16:20:53 +08:00
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struct gic_pcpu_mask {
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DECLARE_BITMAP(pcpu_mask, GIC_NUM_INTRS);
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};
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struct gic_pending_regs {
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DECLARE_BITMAP(pending, GIC_NUM_INTRS);
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};
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struct gic_intrmask_regs {
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DECLARE_BITMAP(intrmask, GIC_NUM_INTRS);
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};
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2012-09-01 05:05:37 +08:00
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static struct gic_pcpu_mask pcpu_masks[NR_CPUS];
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2008-04-29 00:14:26 +08:00
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static struct gic_pending_regs pending_regs[NR_CPUS];
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static struct gic_intrmask_regs intrmask_regs[NR_CPUS];
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2014-09-19 05:47:21 +08:00
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static DEFINE_SPINLOCK(gic_lock);
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2008-04-29 00:14:26 +08:00
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2013-04-11 05:30:12 +08:00
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#if defined(CONFIG_CSRC_GIC) || defined(CONFIG_CEVT_GIC)
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2013-04-11 05:28:36 +08:00
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cycle_t gic_read_count(void)
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{
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unsigned int hi, hi2, lo;
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do {
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GICREAD(GIC_REG(SHARED, GIC_SH_COUNTER_63_32), hi);
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GICREAD(GIC_REG(SHARED, GIC_SH_COUNTER_31_00), lo);
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GICREAD(GIC_REG(SHARED, GIC_SH_COUNTER_63_32), hi2);
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} while (hi2 != hi);
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return (((cycle_t) hi) << 32) + lo;
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}
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2013-04-11 05:30:12 +08:00
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void gic_write_compare(cycle_t cnt)
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{
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GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_HI),
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(int)(cnt >> 32));
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GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_LO),
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(int)(cnt & 0xffffffff));
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}
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2014-03-05 19:35:53 +08:00
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void gic_write_cpu_compare(cycle_t cnt, int cpu)
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{
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unsigned long flags;
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local_irq_save(flags);
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GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), cpu);
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GICWRITE(GIC_REG(VPE_OTHER, GIC_VPE_COMPARE_HI),
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(int)(cnt >> 32));
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GICWRITE(GIC_REG(VPE_OTHER, GIC_VPE_COMPARE_LO),
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(int)(cnt & 0xffffffff));
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local_irq_restore(flags);
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}
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2013-04-11 05:30:12 +08:00
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cycle_t gic_read_compare(void)
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{
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unsigned int hi, lo;
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GICREAD(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_HI), hi);
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GICREAD(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_LO), lo);
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return (((cycle_t) hi) << 32) + lo;
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}
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2013-04-11 05:28:36 +08:00
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#endif
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2012-09-01 05:18:49 +08:00
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unsigned int gic_get_timer_pending(void)
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{
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unsigned int vpe_pending;
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GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), 0);
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GICREAD(GIC_REG(VPE_OTHER, GIC_VPE_PEND), vpe_pending);
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2014-10-21 20:12:49 +08:00
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return vpe_pending & GIC_VPE_PEND_TIMER_MSK;
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2012-09-01 05:18:49 +08:00
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}
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void gic_bind_eic_interrupt(int irq, int set)
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{
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/* Convert irq vector # to hw int # */
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irq -= GIC_PIN_TO_VEC_OFFSET;
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/* Set irq to use shadow set */
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GICWRITE(GIC_REG_ADDR(VPE_LOCAL, GIC_VPE_EIC_SS(irq)), set);
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}
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2008-04-29 00:14:26 +08:00
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void gic_send_ipi(unsigned int intr)
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{
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GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), 0x80000000 | intr);
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}
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2012-09-01 05:18:49 +08:00
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static void gic_eic_irq_dispatch(void)
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{
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unsigned int cause = read_c0_cause();
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int irq;
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irq = (cause & ST0_IM) >> STATUSB_IP2;
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if (irq == 0)
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irq = -1;
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if (irq >= 0)
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do_IRQ(gic_irq_base + irq);
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else
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spurious_interrupt();
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}
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2009-07-10 16:54:09 +08:00
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static void __init vpe_local_setup(unsigned int numvpes)
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2008-04-29 00:14:26 +08:00
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{
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2012-09-01 05:18:49 +08:00
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unsigned long timer_intr = GIC_INT_TMR;
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unsigned long perf_intr = GIC_INT_PERFCTR;
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2008-04-29 00:14:26 +08:00
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unsigned int vpe_ctl;
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2012-09-01 05:13:07 +08:00
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int i;
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2008-04-29 00:14:26 +08:00
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2012-09-01 05:18:49 +08:00
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if (cpu_has_veic) {
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/*
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* GIC timer interrupt -> CPU HW Int X (vector X+2) ->
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* map to pin X+2-1 (since GIC adds 1)
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*/
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timer_intr += (GIC_CPU_TO_VEC_OFFSET - GIC_PIN_TO_VEC_OFFSET);
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/*
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* GIC perfcnt interrupt -> CPU HW Int X (vector X+2) ->
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* map to pin X+2-1 (since GIC adds 1)
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*/
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perf_intr += (GIC_CPU_TO_VEC_OFFSET - GIC_PIN_TO_VEC_OFFSET);
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}
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2008-04-29 00:14:26 +08:00
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/*
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* Setup the default performance counter timer interrupts
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* for all VPEs
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*/
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for (i = 0; i < numvpes; i++) {
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GICWRITE(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), i);
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/* Are Interrupts locally routable? */
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GICREAD(GIC_REG(VPE_OTHER, GIC_VPE_CTL), vpe_ctl);
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if (vpe_ctl & GIC_VPE_CTL_TIMER_RTBL_MSK)
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GICWRITE(GIC_REG(VPE_OTHER, GIC_VPE_TIMER_MAP),
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2012-09-01 05:18:49 +08:00
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GIC_MAP_TO_PIN_MSK | timer_intr);
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if (cpu_has_veic) {
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set_vi_handler(timer_intr + GIC_PIN_TO_VEC_OFFSET,
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gic_eic_irq_dispatch);
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gic_shared_intr_map[timer_intr + GIC_PIN_TO_VEC_OFFSET].local_intr_mask |= GIC_VPE_RMASK_TIMER_MSK;
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}
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2008-04-29 00:14:26 +08:00
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if (vpe_ctl & GIC_VPE_CTL_PERFCNT_RTBL_MSK)
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GICWRITE(GIC_REG(VPE_OTHER, GIC_VPE_PERFCTR_MAP),
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2012-09-01 05:18:49 +08:00
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GIC_MAP_TO_PIN_MSK | perf_intr);
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if (cpu_has_veic) {
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set_vi_handler(perf_intr + GIC_PIN_TO_VEC_OFFSET, gic_eic_irq_dispatch);
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gic_shared_intr_map[perf_intr + GIC_PIN_TO_VEC_OFFSET].local_intr_mask |= GIC_VPE_RMASK_PERFCNT_MSK;
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}
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2008-04-29 00:14:26 +08:00
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}
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}
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2013-04-11 05:30:12 +08:00
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unsigned int gic_compare_int(void)
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{
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unsigned int pending;
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GICREAD(GIC_REG(VPE_LOCAL, GIC_VPE_PEND), pending);
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if (pending & GIC_VPE_PEND_CMP_MSK)
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return 1;
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else
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return 0;
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}
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2014-07-17 16:20:57 +08:00
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void gic_get_int_mask(unsigned long *dst, const unsigned long *src)
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2008-04-29 00:14:26 +08:00
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{
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unsigned int i;
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unsigned long *pending, *intrmask, *pcpu_mask;
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unsigned long *pending_abs, *intrmask_abs;
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/* Get per-cpu bitmaps */
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pending = pending_regs[smp_processor_id()].pending;
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intrmask = intrmask_regs[smp_processor_id()].intrmask;
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pcpu_mask = pcpu_masks[smp_processor_id()].pcpu_mask;
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pending_abs = (unsigned long *) GIC_REG_ABS_ADDR(SHARED,
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GIC_SH_PEND_31_0_OFS);
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intrmask_abs = (unsigned long *) GIC_REG_ABS_ADDR(SHARED,
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GIC_SH_MASK_31_0_OFS);
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for (i = 0; i < BITS_TO_LONGS(GIC_NUM_INTRS); i++) {
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GICREAD(*pending_abs, pending[i]);
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GICREAD(*intrmask_abs, intrmask[i]);
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pending_abs++;
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intrmask_abs++;
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}
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bitmap_and(pending, pending, intrmask, GIC_NUM_INTRS);
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bitmap_and(pending, pending, pcpu_mask, GIC_NUM_INTRS);
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2014-07-17 16:20:57 +08:00
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bitmap_and(dst, src, pending, GIC_NUM_INTRS);
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}
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unsigned int gic_get_int(void)
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{
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DECLARE_BITMAP(interrupts, GIC_NUM_INTRS);
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bitmap_fill(interrupts, GIC_NUM_INTRS);
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gic_get_int_mask(interrupts, interrupts);
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2008-04-29 00:14:26 +08:00
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2014-07-17 16:20:57 +08:00
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return find_first_bit(interrupts, GIC_NUM_INTRS);
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2008-04-29 00:14:26 +08:00
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}
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2011-03-24 05:08:58 +08:00
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static void gic_mask_irq(struct irq_data *d)
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2008-04-29 00:14:26 +08:00
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{
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2012-09-01 05:13:07 +08:00
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GIC_CLR_INTR_MASK(d->irq - gic_irq_base);
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2008-04-29 00:14:26 +08:00
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}
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2011-03-24 05:08:58 +08:00
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static void gic_unmask_irq(struct irq_data *d)
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2008-04-29 00:14:26 +08:00
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{
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2012-09-01 05:13:07 +08:00
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GIC_SET_INTR_MASK(d->irq - gic_irq_base);
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2008-04-29 00:14:26 +08:00
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}
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2014-09-19 05:47:20 +08:00
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static void gic_ack_irq(struct irq_data *d)
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{
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/* Clear edge detector */
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if (gic_irq_flags[d->irq - gic_irq_base] & GIC_TRIG_EDGE)
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GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), d->irq - gic_irq_base);
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}
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2014-09-19 05:47:21 +08:00
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static int gic_set_type(struct irq_data *d, unsigned int type)
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{
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unsigned int irq = d->irq - gic_irq_base;
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unsigned long flags;
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bool is_edge;
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spin_lock_irqsave(&gic_lock, flags);
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switch (type & IRQ_TYPE_SENSE_MASK) {
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case IRQ_TYPE_EDGE_FALLING:
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GIC_SET_POLARITY(irq, GIC_POL_NEG);
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GIC_SET_TRIGGER(irq, GIC_TRIG_EDGE);
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GIC_SET_DUAL(irq, GIC_TRIG_DUAL_DISABLE);
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is_edge = true;
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break;
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case IRQ_TYPE_EDGE_RISING:
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GIC_SET_POLARITY(irq, GIC_POL_POS);
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GIC_SET_TRIGGER(irq, GIC_TRIG_EDGE);
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GIC_SET_DUAL(irq, GIC_TRIG_DUAL_DISABLE);
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is_edge = true;
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break;
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case IRQ_TYPE_EDGE_BOTH:
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/* polarity is irrelevant in this case */
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GIC_SET_TRIGGER(irq, GIC_TRIG_EDGE);
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GIC_SET_DUAL(irq, GIC_TRIG_DUAL_ENABLE);
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is_edge = true;
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break;
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case IRQ_TYPE_LEVEL_LOW:
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GIC_SET_POLARITY(irq, GIC_POL_NEG);
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GIC_SET_TRIGGER(irq, GIC_TRIG_LEVEL);
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GIC_SET_DUAL(irq, GIC_TRIG_DUAL_DISABLE);
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is_edge = false;
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break;
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case IRQ_TYPE_LEVEL_HIGH:
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default:
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GIC_SET_POLARITY(irq, GIC_POL_POS);
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GIC_SET_TRIGGER(irq, GIC_TRIG_LEVEL);
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GIC_SET_DUAL(irq, GIC_TRIG_DUAL_DISABLE);
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is_edge = false;
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break;
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}
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if (is_edge) {
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gic_irq_flags[irq] |= GIC_TRIG_EDGE;
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__irq_set_handler_locked(d->irq, handle_edge_irq);
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} else {
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gic_irq_flags[irq] &= ~GIC_TRIG_EDGE;
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__irq_set_handler_locked(d->irq, handle_level_irq);
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}
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spin_unlock_irqrestore(&gic_lock, flags);
|
2008-04-29 00:14:26 +08:00
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2014-09-19 05:47:21 +08:00
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return 0;
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}
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#ifdef CONFIG_SMP
|
2011-03-24 05:08:58 +08:00
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static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask,
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bool force)
|
2008-04-29 00:14:26 +08:00
|
|
|
{
|
2012-09-01 05:13:07 +08:00
|
|
|
unsigned int irq = (d->irq - gic_irq_base);
|
2008-04-29 00:14:26 +08:00
|
|
|
cpumask_t tmp = CPU_MASK_NONE;
|
|
|
|
unsigned long flags;
|
|
|
|
int i;
|
|
|
|
|
2008-12-13 18:50:26 +08:00
|
|
|
cpumask_and(&tmp, cpumask, cpu_online_mask);
|
2008-04-29 00:14:26 +08:00
|
|
|
if (cpus_empty(tmp))
|
2009-04-28 08:59:21 +08:00
|
|
|
return -1;
|
2008-04-29 00:14:26 +08:00
|
|
|
|
|
|
|
/* Assumption : cpumask refers to a single CPU */
|
|
|
|
spin_lock_irqsave(&gic_lock, flags);
|
|
|
|
|
2013-06-21 18:13:08 +08:00
|
|
|
/* Re-route this IRQ */
|
|
|
|
GIC_SH_MAP_TO_VPE_SMASK(irq, first_cpu(tmp));
|
|
|
|
|
|
|
|
/* Update the pcpu_masks */
|
|
|
|
for (i = 0; i < NR_CPUS; i++)
|
|
|
|
clear_bit(irq, pcpu_masks[i].pcpu_mask);
|
|
|
|
set_bit(irq, pcpu_masks[first_cpu(tmp)].pcpu_mask);
|
2008-04-29 00:14:26 +08:00
|
|
|
|
2011-03-24 05:08:58 +08:00
|
|
|
cpumask_copy(d->affinity, cpumask);
|
2008-04-29 00:14:26 +08:00
|
|
|
spin_unlock_irqrestore(&gic_lock, flags);
|
|
|
|
|
2011-03-24 05:08:58 +08:00
|
|
|
return IRQ_SET_MASK_OK_NOCOPY;
|
2008-04-29 00:14:26 +08:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static struct irq_chip gic_irq_controller = {
|
2011-03-24 05:08:58 +08:00
|
|
|
.name = "MIPS GIC",
|
2014-09-19 05:47:20 +08:00
|
|
|
.irq_ack = gic_ack_irq,
|
2011-03-24 05:08:58 +08:00
|
|
|
.irq_mask = gic_mask_irq,
|
|
|
|
.irq_unmask = gic_unmask_irq,
|
2014-09-19 05:47:21 +08:00
|
|
|
.irq_set_type = gic_set_type,
|
2008-04-29 00:14:26 +08:00
|
|
|
#ifdef CONFIG_SMP
|
2011-03-24 05:08:58 +08:00
|
|
|
.irq_set_affinity = gic_set_affinity,
|
2008-04-29 00:14:26 +08:00
|
|
|
#endif
|
|
|
|
};
|
|
|
|
|
2009-07-10 16:54:09 +08:00
|
|
|
static void __init gic_setup_intr(unsigned int intr, unsigned int cpu,
|
|
|
|
unsigned int pin, unsigned int polarity, unsigned int trigtype,
|
|
|
|
unsigned int flags)
|
2008-04-29 00:14:26 +08:00
|
|
|
{
|
2012-09-01 05:18:49 +08:00
|
|
|
struct gic_shared_intr_map *map_ptr;
|
|
|
|
|
2008-04-29 00:14:26 +08:00
|
|
|
/* Setup Intr to Pin mapping */
|
|
|
|
if (pin & GIC_MAP_TO_NMI_MSK) {
|
2014-07-17 16:20:56 +08:00
|
|
|
int i;
|
|
|
|
|
2008-04-29 00:14:26 +08:00
|
|
|
GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_MAP_TO_PIN(intr)), pin);
|
|
|
|
/* FIXME: hack to route NMI to all cpu's */
|
2014-07-17 16:20:56 +08:00
|
|
|
for (i = 0; i < NR_CPUS; i += 32) {
|
2008-04-29 00:14:26 +08:00
|
|
|
GICWRITE(GIC_REG_ADDR(SHARED,
|
2014-07-17 16:20:56 +08:00
|
|
|
GIC_SH_MAP_TO_VPE_REG_OFF(intr, i)),
|
2008-04-29 00:14:26 +08:00
|
|
|
0xffffffff);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_MAP_TO_PIN(intr)),
|
|
|
|
GIC_MAP_TO_PIN_MSK | pin);
|
|
|
|
/* Setup Intr to CPU mapping */
|
|
|
|
GIC_SH_MAP_TO_VPE_SMASK(intr, cpu);
|
2012-09-01 05:18:49 +08:00
|
|
|
if (cpu_has_veic) {
|
|
|
|
set_vi_handler(pin + GIC_PIN_TO_VEC_OFFSET,
|
|
|
|
gic_eic_irq_dispatch);
|
|
|
|
map_ptr = &gic_shared_intr_map[pin + GIC_PIN_TO_VEC_OFFSET];
|
|
|
|
if (map_ptr->num_shared_intr >= GIC_MAX_SHARED_INTR)
|
|
|
|
BUG();
|
|
|
|
map_ptr->intr_list[map_ptr->num_shared_intr++] = intr;
|
|
|
|
}
|
2008-04-29 00:14:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Setup Intr Polarity */
|
|
|
|
GIC_SET_POLARITY(intr, polarity);
|
|
|
|
|
|
|
|
/* Setup Intr Trigger Type */
|
|
|
|
GIC_SET_TRIGGER(intr, trigtype);
|
|
|
|
|
|
|
|
/* Init Intr Masks */
|
2009-07-10 16:54:09 +08:00
|
|
|
GIC_CLR_INTR_MASK(intr);
|
2014-07-17 16:20:55 +08:00
|
|
|
|
2009-07-10 16:54:09 +08:00
|
|
|
/* Initialise per-cpu Interrupt software masks */
|
2014-07-17 16:20:55 +08:00
|
|
|
set_bit(intr, pcpu_masks[cpu].pcpu_mask);
|
|
|
|
|
2012-09-01 05:18:49 +08:00
|
|
|
if ((flags & GIC_FLAG_TRANSPARENT) && (cpu_has_veic == 0))
|
2009-07-10 16:54:09 +08:00
|
|
|
GIC_SET_INTR_MASK(intr);
|
|
|
|
if (trigtype == GIC_TRIG_EDGE)
|
2012-09-01 05:05:37 +08:00
|
|
|
gic_irq_flags[intr] |= GIC_TRIG_EDGE;
|
2008-04-29 00:14:26 +08:00
|
|
|
}
|
|
|
|
|
2009-07-10 16:54:09 +08:00
|
|
|
static void __init gic_basic_init(int numintrs, int numvpes,
|
|
|
|
struct gic_intr_map *intrmap, int mapsize)
|
2008-04-29 00:14:26 +08:00
|
|
|
{
|
|
|
|
unsigned int i, cpu;
|
2012-09-01 05:18:49 +08:00
|
|
|
unsigned int pin_offset = 0;
|
|
|
|
|
|
|
|
board_bind_eic_interrupt = &gic_bind_eic_interrupt;
|
2008-04-29 00:14:26 +08:00
|
|
|
|
|
|
|
/* Setup defaults */
|
2009-07-10 16:54:09 +08:00
|
|
|
for (i = 0; i < numintrs; i++) {
|
2008-04-29 00:14:26 +08:00
|
|
|
GIC_SET_POLARITY(i, GIC_POL_POS);
|
|
|
|
GIC_SET_TRIGGER(i, GIC_TRIG_LEVEL);
|
2009-07-10 16:54:09 +08:00
|
|
|
GIC_CLR_INTR_MASK(i);
|
2012-09-01 05:18:49 +08:00
|
|
|
if (i < GIC_NUM_INTRS) {
|
2009-07-10 16:54:09 +08:00
|
|
|
gic_irq_flags[i] = 0;
|
2012-09-01 05:18:49 +08:00
|
|
|
gic_shared_intr_map[i].num_shared_intr = 0;
|
|
|
|
gic_shared_intr_map[i].local_intr_mask = 0;
|
|
|
|
}
|
2008-04-29 00:14:26 +08:00
|
|
|
}
|
|
|
|
|
2012-09-01 05:18:49 +08:00
|
|
|
/*
|
|
|
|
* In EIC mode, the HW_INT# is offset by (2-1). Need to subtract
|
|
|
|
* one because the GIC will add one (since 0=no intr).
|
|
|
|
*/
|
|
|
|
if (cpu_has_veic)
|
|
|
|
pin_offset = (GIC_CPU_TO_VEC_OFFSET - GIC_PIN_TO_VEC_OFFSET);
|
|
|
|
|
2008-04-29 00:14:26 +08:00
|
|
|
/* Setup specifics */
|
2009-07-10 16:54:09 +08:00
|
|
|
for (i = 0; i < mapsize; i++) {
|
|
|
|
cpu = intrmap[i].cpunum;
|
2010-09-18 00:07:48 +08:00
|
|
|
if (cpu == GIC_UNUSED)
|
2008-04-29 00:14:26 +08:00
|
|
|
continue;
|
2009-07-10 16:54:09 +08:00
|
|
|
gic_setup_intr(i,
|
|
|
|
intrmap[i].cpunum,
|
2012-09-01 05:18:49 +08:00
|
|
|
intrmap[i].pin + pin_offset,
|
2009-07-10 16:54:09 +08:00
|
|
|
intrmap[i].polarity,
|
|
|
|
intrmap[i].trigtype,
|
|
|
|
intrmap[i].flags);
|
2008-04-29 00:14:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
vpe_local_setup(numvpes);
|
|
|
|
}
|
|
|
|
|
|
|
|
void __init gic_init(unsigned long gic_base_addr,
|
|
|
|
unsigned long gic_addrspace_size,
|
|
|
|
struct gic_intr_map *intr_map, unsigned int intr_map_size,
|
|
|
|
unsigned int irqbase)
|
|
|
|
{
|
|
|
|
unsigned int gicconfig;
|
2009-07-10 16:54:09 +08:00
|
|
|
int numvpes, numintrs;
|
2008-04-29 00:14:26 +08:00
|
|
|
|
|
|
|
_gic_base = (unsigned long) ioremap_nocache(gic_base_addr,
|
|
|
|
gic_addrspace_size);
|
2012-09-01 05:05:37 +08:00
|
|
|
gic_irq_base = irqbase;
|
2008-04-29 00:14:26 +08:00
|
|
|
|
|
|
|
GICREAD(GIC_REG(SHARED, GIC_SH_CONFIG), gicconfig);
|
|
|
|
numintrs = (gicconfig & GIC_SH_CONFIG_NUMINTRS_MSK) >>
|
|
|
|
GIC_SH_CONFIG_NUMINTRS_SHF;
|
|
|
|
numintrs = ((numintrs + 1) * 8);
|
|
|
|
|
|
|
|
numvpes = (gicconfig & GIC_SH_CONFIG_NUMVPES_MSK) >>
|
|
|
|
GIC_SH_CONFIG_NUMVPES_SHF;
|
2012-09-01 05:23:49 +08:00
|
|
|
numvpes = numvpes + 1;
|
2008-04-29 00:14:26 +08:00
|
|
|
|
2009-07-10 16:54:09 +08:00
|
|
|
gic_basic_init(numintrs, numvpes, intr_map, intr_map_size);
|
2012-09-01 05:05:37 +08:00
|
|
|
|
|
|
|
gic_platform_init(numintrs, &gic_irq_controller);
|
2008-04-29 00:14:26 +08:00
|
|
|
}
|