2008-10-23 05:26:29 +00:00
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#ifndef _ASM_X86_SETUP_H
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#define _ASM_X86_SETUP_H
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2007-10-23 20:37:24 +00:00
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#define COMMAND_LINE_SIZE 2048
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2008-01-30 12:31:11 +00:00
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#ifndef __ASSEMBLY__
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2008-02-11 19:16:03 +00:00
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/* Interrupt control for vSMPowered x86_64 systems */
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void vsmp_init(void);
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2008-10-05 18:33:42 +00:00
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void setup_bios_corruption_check(void);
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2008-07-10 15:30:40 +00:00
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#ifdef CONFIG_X86_VISWS
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extern void visws_early_detect(void);
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2008-07-10 14:53:21 +00:00
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extern int is_visws_box(void);
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2008-07-10 15:30:40 +00:00
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#else
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static inline void visws_early_detect(void) { }
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2008-07-10 14:53:21 +00:00
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static inline int is_visws_box(void) { return 0; }
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2008-07-10 15:30:40 +00:00
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#endif
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x86: fix wakeup_cpu with numaq/es7000, v2
Impact: fix secondary-CPU wakeup/init path with numaq and es7000
While looking at wakeup_secondary_cpu for WAKE_SECONDARY_VIA_NMI:
|#ifdef WAKE_SECONDARY_VIA_NMI
|/*
| * Poke the other CPU in the eye via NMI to wake it up. Remember that the normal
| * INIT, INIT, STARTUP sequence will reset the chip hard for us, and this
| * won't ... remember to clear down the APIC, etc later.
| */
|static int __devinit
|wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip)
|{
| unsigned long send_status, accept_status = 0;
| int maxlvt;
|...
| if (APIC_INTEGRATED(apic_version[phys_apicid])) {
| maxlvt = lapic_get_maxlvt();
I noticed that there is no warning about undefined phys_apicid...
because WAKE_SECONDARY_VIA_NMI and WAKE_SECONDARY_VIA_INIT can not be
defined at the same time. So NUMAQ is using wrong wakeup_secondary_cpu.
WAKE_SECONDARY_VIA_NMI, WAKE_SECONDARY_VIA_INIT and
WAKE_SECONDARY_VIA_MIP are variants of a weird and fragile
preprocessor-driven "HAL" mechanisms to specify the kind of secondary-CPU
wakeup strategy a given x86 kernel will use.
The vast majority of systems want to use INIT for secondary wakeup - NUMAQ
uses an NMI, (old-style-) ES7000 uses 'MIP' (a firmware driven in-memory
flag to let secondaries continue).
So convert these mechanisms to x86_quirks and add a
->wakeup_secondary_cpu() method to specify the rare exception
to the sane default.
Extend genapic accordingly as well, for 32-bit.
While looking further, I noticed that functions in wakecup.h for numaq
and es7000 are different to the default in mach_wakecpu.h - but smpboot.c
will only use default mach_wakecpu.h with smphook.h.
So we need to add mach_wakecpu.h for mach_generic, to properly support
numaq and es7000, and vectorize the following SMP init methods:
int trampoline_phys_low;
int trampoline_phys_high;
void (*wait_for_init_deassert)(atomic_t *deassert);
void (*smp_callin_clear_local_apic)(void);
void (*store_NMI_vector)(unsigned short *high, unsigned short *low);
void (*restore_NMI_vector)(unsigned short *high, unsigned short *low);
void (*inquire_remote_apic)(int apicid);
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-16 11:12:49 +00:00
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extern int wakeup_secondary_cpu_via_nmi(int apicid, unsigned long start_eip);
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2008-11-17 23:19:53 +00:00
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extern int wakeup_secondary_cpu_via_init(int apicid, unsigned long start_eip);
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2008-07-10 15:30:40 +00:00
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/*
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* Any setup quirks to be performed?
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*/
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2009-01-03 10:18:52 +00:00
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struct mpc_cpu;
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2009-01-03 10:17:32 +00:00
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struct mpc_bus;
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2009-01-03 10:22:54 +00:00
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struct mpc_oemtable;
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2008-07-19 09:07:25 +00:00
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struct x86_quirks {
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2008-07-20 01:02:26 +00:00
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int (*arch_pre_time_init)(void);
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2008-07-19 09:07:25 +00:00
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int (*arch_time_init)(void);
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int (*arch_pre_intr_init)(void);
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int (*arch_intr_init)(void);
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int (*arch_trap_init)(void);
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char * (*arch_memory_setup)(void);
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int (*mach_get_smp_config)(unsigned int early);
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int (*mach_find_smp_config)(unsigned int reserve);
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2008-07-20 01:01:16 +00:00
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int *mpc_record;
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2009-01-03 10:18:52 +00:00
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int (*mpc_apic_id)(struct mpc_cpu *m);
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2009-01-03 10:17:32 +00:00
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void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
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void (*mpc_oem_pci_bus)(struct mpc_bus *m);
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2009-01-03 10:22:54 +00:00
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void (*smp_read_mpc_oem)(struct mpc_oemtable *oemtable,
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2008-07-20 01:01:16 +00:00
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unsigned short oemsize);
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2008-07-25 09:14:28 +00:00
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int (*setup_ioapic_ids)(void);
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2008-11-17 23:19:53 +00:00
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int (*update_genapic)(void);
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2008-07-19 09:07:25 +00:00
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};
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extern struct x86_quirks *x86_quirks;
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2008-07-21 16:42:23 +00:00
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extern unsigned long saved_video_mode;
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2008-07-10 15:30:40 +00:00
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2008-01-30 12:31:11 +00:00
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#ifndef CONFIG_PARAVIRT
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#define paravirt_post_allocator_init() do {} while (0)
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#endif
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#endif /* __ASSEMBLY__ */
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2007-10-11 09:20:03 +00:00
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#ifdef __KERNEL__
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2007-10-23 20:37:24 +00:00
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#ifdef __i386__
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#include <linux/pfn.h>
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/*
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* Reserved space for vmalloc and iomap - defined in asm/page.h
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*/
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#define MAXMEM_PFN PFN_DOWN(MAXMEM)
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#define MAX_NONPAE_PFN (1 << 20)
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2007-10-23 20:37:25 +00:00
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#endif /* __i386__ */
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#define PARAM_SIZE 4096 /* sizeof(struct boot_params) */
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2007-10-23 20:37:24 +00:00
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#define OLD_CL_MAGIC 0xA33F
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2007-10-23 20:37:25 +00:00
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#define OLD_CL_ADDRESS 0x020 /* Relative to real mode data */
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2007-10-23 20:37:24 +00:00
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#define NEW_CL_POINTER 0x228 /* Relative to real mode data */
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#ifndef __ASSEMBLY__
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#include <asm/bootparam.h>
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2007-10-23 20:37:25 +00:00
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#ifndef _SETUP
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2007-10-23 20:37:24 +00:00
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/*
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* This is set up by the setup-routine at boot-time
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*/
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extern struct boot_params boot_params;
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/*
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* Do NOT EVER look at the BIOS memory size location.
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* It does not work on many machines.
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*/
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#define LOWMEMSIZE() (0x9f000)
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2008-06-19 00:27:08 +00:00
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#ifdef __i386__
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2008-05-29 19:56:36 +00:00
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void __init i386_start_kernel(void);
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2008-06-21 22:39:41 +00:00
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extern void probe_roms(void);
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2008-01-30 12:31:11 +00:00
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2008-05-29 19:56:36 +00:00
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extern unsigned long init_pg_tables_start;
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extern unsigned long init_pg_tables_end;
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2007-10-23 20:37:24 +00:00
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2008-06-25 04:19:09 +00:00
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#else
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void __init x86_64_start_kernel(char *real_mode);
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2008-06-25 04:19:18 +00:00
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void __init x86_64_start_reservations(char *real_mode_data);
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2007-10-23 20:37:24 +00:00
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#endif /* __i386__ */
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2007-10-23 20:37:25 +00:00
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#endif /* _SETUP */
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2007-10-23 20:37:24 +00:00
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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2008-10-23 05:26:29 +00:00
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#endif /* _ASM_X86_SETUP_H */
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