aboutsummaryrefslogtreecommitdiffstats
path: root/os/hal/src/hal_qspi.c
diff options
context:
space:
mode:
Diffstat (limited to 'os/hal/src/hal_qspi.c')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 14:25:57 +0000
53'>53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 
/*
 *	Local APIC handling, local APIC timers
 *
 *	(c) 1999, 2000 Ingo Molnar <mingo@redhat.com>
 *
 *	Fixes
 *	Maciej W. Rozycki	:	Bits for genuine 82489DX APICs;
 *					thanks to Eric Gilmore
 *					and Rolf G. Tews
 *					for testing these extensively.
 *	Maciej W. Rozycki	:	Various updates and fixes.
 *	Mikael Pettersson	:	Power Management for UP-APIC.
 *	Pavel Machek and
 *	Mikael Pettersson	:	PM converted to driver model.
 */

#include <linux/config.h>
#include <linux/init.h>

#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/bootmem.h>
#include <linux/smp_lock.h>
#include <linux/interrupt.h>
#include <linux/mc146818rtc.h>
#include <linux/kernel_stat.h>
#include <linux/sysdev.h>
#include <linux/cpu.h>
#include <linux/module.h>

#include <asm/atomic.h>
#include <asm/smp.h>
#include <asm/mtrr.h>
#include <asm/mpspec.h>
#include <asm/desc.h>
#include <asm/arch_hooks.h>
#include <asm/hpet.h>
#include <asm/i8253.h>

#include <mach_apic.h>
#include <mach_ipi.h>

#include "io_ports.h"

#ifndef CONFIG_XEN
/*
 * cpu_mask that denotes the CPUs that needs timer interrupt coming in as
 * IPIs in place of local APIC timers
 */
static cpumask_t timer_bcast_ipi;
#endif

/*
 * Knob to control our willingness to enable the local APIC.
 */
int enable_local_apic __initdata = 0; /* -1=force-disable, +1=force-enable */

/*
 * Debug level
 */
int apic_verbosity;

/*
 * 'what should we do if we get a hw irq event on an illegal vector'.
 * each architecture has to answer this themselves.
 */
void ack_bad_irq(unsigned int irq)
{
	printk("unexpected IRQ trap at vector %02x\n", irq);
	/*
	 * Currently unexpected vectors happen only on SMP and APIC.
	 * We _must_ ack these because every local APIC has only N
	 * irq slots per priority level, and a 'hanging, unacked' IRQ
	 * holds up an irq slot - in excessive cases (when multiple
	 * unexpected vectors occur) that might lock up the APIC
	 * completely.
	 * But only ack when the APIC is enabled -AK
	 */
	if (cpu_has_apic)
		ack_APIC_irq();
}

int get_physical_broadcast(void)
{
        return 0xff;
}

#ifndef CONFIG_XEN
#ifndef CONFIG_SMP
static void up_apic_timer_interrupt_call(struct pt_regs *regs)
{
	int cpu = smp_processor_id();

	/*
	 * the NMI deadlock-detector uses this.
	 */
	per_cpu(irq_stat, cpu).apic_timer_irqs++;

	smp_local_timer_interrupt(regs);
}
#endif

void smp_send_timer_broadcast_ipi(struct pt_regs *regs)
{
	cpumask_t mask;

	cpus_and(mask, cpu_online_map, timer_bcast_ipi);
	if (!cpus_empty(mask)) {
#ifdef CONFIG_SMP
		send_IPI_mask(mask, LOCAL_TIMER_VECTOR);
#else
		/*
		 * We can directly call the apic timer interrupt handler
		 * in UP case. Minus all irq related functions
		 */
		up_apic_timer_interrupt_call(regs);
#endif
	}
}
#endif

int setup_profiling_timer(unsigned int multiplier)
{
	return -EINVAL;
}

/*
 * This initializes the IO-APIC and APIC hardware if this is
 * a UP kernel.
 */
int __init APIC_init_uniprocessor (void)
{
#ifdef CONFIG_X86_IO_APIC
	if (smp_found_config)
		if (!skip_ioapic_setup && nr_ioapics)
			setup_IO_APIC();
#endif

	return 0;
}