aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-x86/es7000/wakecpu.h
blob: 3ffc5a7bf6677e54bb1ec2e1ff53574c63b83d47 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
#ifndef __ASM_ES7000_WAKECPU_H
#define __ASM_ES7000_WAKECPU_H

/*
 * This file copes with machines that wakeup secondary CPUs by the
 * INIT, INIT, STARTUP sequence.
 */

#ifdef CONFIG_ES7000_CLUSTERED_APIC
#define WAKE_SECONDARY_VIA_MIP
#else
#define WAKE_SECONDARY_VIA_INIT
#endif

#ifdef WAKE_SECONDARY_VIA_MIP
extern int es7000_start_cpu(int cpu, unsigned long eip);
static inline int
wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip)
{
	int boot_error = 0;
	boot_error = es7000_start_cpu(phys_apicid, start_eip);
	return boot_error;
}
#endif

#define TRAMPOLINE_LOW phys_to_virt(0x467)
#define TRAMPOLINE_HIGH phys_to_virt(0x469)

#define boot_cpu_apicid boot_cpu_physical_apicid

static inline void wait_for_init_deassert(atomic_t *deassert)
{
#ifdef WAKE_SECONDARY_VIA_INIT
	while (!atomic_read(deassert))
		cpu_relax();
#endif
	return;
}

/* Nothing to do for most platforms, since cleared by the INIT cycle */
static inline void smp_callin_clear_local_apic(void)
{
}

static inline void store_NMI_vector(unsigned short *high, unsigned short *low)
{
}

static inline void restore_NMI_vector(unsigned short *high, unsigned short *low)
{
}

#if APIC_DEBUG
 #define inquire_remote_apic(apicid) __inquire_remote_apic(apicid)
#else
 #define inquire_remote_apic(apicid) {}
#endif

#endif /* __ASM_MACH_WAKECPU_H */