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x86, apic: clean up arch/x86/kernel/bigsmp_32.c 

Impact: cleanup

- remove unnecessary indirections that were artifacts of the subarch code
- clean up include file section
- clean up various small details

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-02-17 14:09:20 +01:00
parent 5c615feb90
commit 77313190d1
1 changed files with 24 additions and 19 deletions
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43
arch/x86/kernel/bigsmp_32.c
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@ -1,27 +1,26 @@
/*
* APIC driver for "bigsmp" XAPIC machines with more than 8 virtual CPUs.
* APIC driver for "bigsmp" xAPIC machines with more than 8 virtual CPUs.
*
* Drives the local APIC in "clustered mode".
*/
#include <linux/threads.h>
#include <linux/cpumask.h>
#include <asm/mpspec.h>
#include <asm/apic.h>
#include <asm/fixmap.h>
#include <asm/apicdef.h>
#include <asm/ipi.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/dmi.h>
#include <linux/smp.h>
#include <asm/apicdef.h>
#include <asm/fixmap.h>
#include <asm/mpspec.h>
#include <asm/apic.h>
#include <asm/ipi.h>
static inline unsigned bigsmp_get_apic_id(unsigned long x)
{
return (x >> 24) & 0xFF;
}
#define xapic_phys_to_log_apicid(cpu) (per_cpu(x86_bios_cpu_apicid, cpu))
static inline int bigsmp_apic_id_registered(void)
{
return 1;
@ -36,8 +35,6 @@ static inline const cpumask_t *bigsmp_target_cpus(void)
#endif
}
#define APIC_DFR_VALUE (APIC_DFR_FLAT)
static inline unsigned long
bigsmp_check_apicid_used(physid_mask_t bitmap, int apicid)
{
@ -52,9 +49,11 @@ static inline unsigned long bigsmp_check_apicid_present(int bit)
static inline unsigned long calculate_ldr(int cpu)
{
unsigned long val, id;
val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
id = xapic_phys_to_log_apicid(cpu);
id = per_cpu(x86_bios_cpu_apicid, cpu);
val |= SET_APIC_LOGICAL_ID(id);
return val;
}
@ -70,15 +69,16 @@ static inline void bigsmp_init_apic_ldr(void)
unsigned long val;
int cpu = smp_processor_id();
apic_write(APIC_DFR, APIC_DFR_VALUE);
apic_write(APIC_DFR, APIC_DFR_FLAT);
val = calculate_ldr(cpu);
apic_write(APIC_LDR, val);
}
static inline void bigsmp_setup_apic_routing(void)
{
printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
"Physflat", nr_ioapics);
printk(KERN_INFO
"Enabling APIC mode: Physflat. Using %d I/O APICs\n",
nr_ioapics);
}
static inline int bigsmp_apicid_to_node(int logical_apicid)
@ -100,6 +100,7 @@ static inline physid_mask_t bigsmp_apicid_to_cpu_present(int phys_apicid)
}
extern u8 cpu_2_logical_apicid[];
/* Mapping from cpu number to logical apicid */
static inline int bigsmp_cpu_to_logical_apicid(int cpu)
{
@ -175,21 +176,24 @@ static int hp_ht_bigsmp(const struct dmi_system_id *d)
{
printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident);
dmi_bigsmp = 1;
return 0;
}
static const struct dmi_system_id bigsmp_dmi_table[] = {
{ hp_ht_bigsmp, "HP ProLiant DL760 G2",
{ DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
DMI_MATCH(DMI_BIOS_VERSION, "P44-"),}
{ DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
DMI_MATCH(DMI_BIOS_VERSION, "P44-"),
}
},
{ hp_ht_bigsmp, "HP ProLiant DL740",
{ DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
DMI_MATCH(DMI_BIOS_VERSION, "P47-"),}
{ DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
DMI_MATCH(DMI_BIOS_VERSION, "P47-"),
}
},
{ }
{ } /* NULL entry stops DMI scanning */
};
static void bigsmp_vector_allocation_domain(int cpu, cpumask_t *retmask)
@ -204,6 +208,7 @@ static int probe_bigsmp(void)
dmi_bigsmp = 1;
else
dmi_check_system(bigsmp_dmi_table);
return dmi_bigsmp;
}