提交 3c9cb6de 编写于 作者: Y Yinghai Lu 提交者: Ingo Molnar

x86: introduce x86_quirks

introduce x86_quirks array of boot-time quirk methods.

No change in functionality intended.
Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
上级 5f1f2b3d
......@@ -1299,11 +1299,6 @@ void __init e820_reserve_resources(void)
}
}
/*
* Non-standard memory setup can be specified via this quirk:
*/
char * (*arch_memory_setup_quirk)(void);
char *__init default_machine_specific_memory_setup(void)
{
char *who = "BIOS-e820";
......@@ -1344,8 +1339,8 @@ char *__init default_machine_specific_memory_setup(void)
char *__init __attribute__((weak)) machine_specific_memory_setup(void)
{
if (arch_memory_setup_quirk) {
char *who = arch_memory_setup_quirk();
if (x86_quirks->arch_memory_setup) {
char *who = x86_quirks->arch_memory_setup();
if (who)
return who;
......
......@@ -27,6 +27,7 @@
#include <asm/bios_ebda.h>
#include <asm/e820.h>
#include <asm/trampoline.h>
#include <asm/setup.h>
#include <mach_apic.h>
#ifdef CONFIG_X86_32
......@@ -725,12 +726,6 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
static struct intel_mp_floating *mpf_found;
/*
* Machine specific quirk for finding the SMP config before other setup
* activities destroy the table:
*/
int (*mach_get_smp_config_quirk)(unsigned int early);
/*
* Scan the memory blocks for an SMP configuration block.
*/
......@@ -738,8 +733,8 @@ static void __init __get_smp_config(unsigned int early)
{
struct intel_mp_floating *mpf = mpf_found;
if (mach_get_smp_config_quirk) {
if (mach_get_smp_config_quirk(early))
if (x86_quirks->mach_get_smp_config) {
if (x86_quirks->mach_get_smp_config(early))
return;
}
if (acpi_lapic && early)
......@@ -899,14 +894,12 @@ static int __init smp_scan_config(unsigned long base, unsigned long length,
return 0;
}
int (*mach_find_smp_config_quirk)(unsigned int reserve);
static void __init __find_smp_config(unsigned int reserve)
{
unsigned int address;
if (mach_find_smp_config_quirk) {
if (mach_find_smp_config_quirk(reserve))
if (x86_quirks->mach_find_smp_config) {
if (x86_quirks->mach_find_smp_config(reserve))
return;
}
/*
......
......@@ -574,6 +574,10 @@ static int __init setup_elfcorehdr(char *arg)
early_param("elfcorehdr", setup_elfcorehdr);
#endif
static struct x86_quirks default_x86_quirks __initdata;
struct x86_quirks *x86_quirks __initdata = &default_x86_quirks;
/*
* Determine if we were loaded by an EFI loader. If so, then we have also been
* passed the efi memmap, systab, etc., so we should use these data structures
......
......@@ -73,7 +73,7 @@ int is_visws_box(void)
return visws_board_type >= 0;
}
static int __init visws_time_init_quirk(void)
static int __init visws_time_init(void)
{
printk(KERN_INFO "Starting Cobalt Timer system clock\n");
......@@ -93,7 +93,7 @@ static int __init visws_time_init_quirk(void)
return 0;
}
static int __init visws_pre_intr_init_quirk(void)
static int __init visws_pre_intr_init(void)
{
init_VISWS_APIC_irqs();
......@@ -114,7 +114,7 @@ EXPORT_SYMBOL(sgivwfb_mem_size);
long long mem_size __initdata = 0;
static char * __init visws_memory_setup_quirk(void)
static char * __init visws_memory_setup(void)
{
long long gfx_mem_size = 8 * MB;
......@@ -176,7 +176,7 @@ static void visws_machine_power_off(void)
outl(PIIX_SPECIAL_STOP, 0xCFC);
}
static int __init visws_get_smp_config_quirk(unsigned int early)
static int __init visws_get_smp_config(unsigned int early)
{
/*
* Prevent MP-table parsing by the generic code:
......@@ -192,7 +192,7 @@ extern unsigned int __cpuinitdata maxcpus;
* No problem for Linux.
*/
static void __init MP_processor_info (struct mpc_config_processor *m)
static void __init MP_processor_info(struct mpc_config_processor *m)
{
int ver, logical_apicid;
physid_mask_t apic_cpus;
......@@ -232,7 +232,7 @@ static void __init MP_processor_info (struct mpc_config_processor *m)
apic_version[m->mpc_apicid] = ver;
}
int __init visws_find_smp_config_quirk(unsigned int reserve)
static int __init visws_find_smp_config(unsigned int reserve)
{
struct mpc_config_processor *mp = phys_to_virt(CO_CPU_TAB_PHYS);
unsigned short ncpus = readw(phys_to_virt(CO_CPU_NUM_PHYS));
......@@ -258,7 +258,17 @@ int __init visws_find_smp_config_quirk(unsigned int reserve)
return 1;
}
extern int visws_trap_init_quirk(void);
static int visws_trap_init(void);
static struct x86_quirks visws_x86_quirks __initdata = {
.arch_time_init = visws_time_init,
.arch_pre_intr_init = visws_pre_intr_init,
.arch_memory_setup = visws_memory_setup,
.arch_intr_init = NULL,
.arch_trap_init = visws_trap_init,
.mach_get_smp_config = visws_get_smp_config,
.mach_find_smp_config = visws_find_smp_config,
};
void __init visws_early_detect(void)
{
......@@ -272,16 +282,10 @@ void __init visws_early_detect(void)
/*
* Install special quirks for timer, interrupt and memory setup:
*/
arch_time_init_quirk = visws_time_init_quirk;
arch_pre_intr_init_quirk = visws_pre_intr_init_quirk;
arch_memory_setup_quirk = visws_memory_setup_quirk;
/*
* Fall back to generic behavior for traps:
* Override generic MP-table parsing:
*/
arch_intr_init_quirk = NULL;
arch_trap_init_quirk = visws_trap_init_quirk;
x86_quirks = &visws_x86_quirks;
/*
* Install reboot quirks:
......@@ -294,12 +298,6 @@ void __init visws_early_detect(void)
*/
no_broadcast = 0;
/*
* Override generic MP-table parsing:
*/
mach_get_smp_config_quirk = visws_get_smp_config_quirk;
mach_find_smp_config_quirk = visws_find_smp_config_quirk;
#ifdef CONFIG_X86_IO_APIC
/*
* Turn off IO-APIC detection and initialization:
......@@ -426,7 +424,7 @@ static __init void cobalt_init(void)
co_apic_read(CO_APIC_ID));
}
int __init visws_trap_init_quirk(void)
static int __init visws_trap_init(void)
{
lithium_init();
cobalt_init();
......
......@@ -10,14 +10,6 @@
#include <asm/e820.h>
#include <asm/setup.h>
/*
* Any quirks to be performed to initialize timers/irqs/etc?
*/
int (*arch_time_init_quirk)(void);
int (*arch_pre_intr_init_quirk)(void);
int (*arch_intr_init_quirk)(void);
int (*arch_trap_init_quirk)(void);
#ifdef CONFIG_HOTPLUG_CPU
#define DEFAULT_SEND_IPI (1)
#else
......@@ -37,8 +29,8 @@ int no_broadcast=DEFAULT_SEND_IPI;
**/
void __init pre_intr_init_hook(void)
{
if (arch_pre_intr_init_quirk) {
if (arch_pre_intr_init_quirk())
if (x86_quirks->arch_pre_intr_init) {
if (x86_quirks->arch_pre_intr_init())
return;
}
init_ISA_irqs();
......@@ -64,8 +56,8 @@ static struct irqaction irq2 = {
**/
void __init intr_init_hook(void)
{
if (arch_intr_init_quirk) {
if (arch_intr_init_quirk())
if (x86_quirks->arch_intr_init) {
if (x86_quirks->arch_intr_init())
return;
}
#ifdef CONFIG_X86_LOCAL_APIC
......@@ -97,8 +89,8 @@ void __init pre_setup_arch_hook(void)
**/
void __init trap_init_hook(void)
{
if (arch_trap_init_quirk) {
if (arch_trap_init_quirk())
if (x86_quirks->arch_trap_init) {
if (x86_quirks->arch_trap_init())
return;
}
}
......@@ -119,13 +111,13 @@ static struct irqaction irq0 = {
**/
void __init time_init_hook(void)
{
if (arch_time_init_quirk) {
if (x86_quirks->arch_time_init) {
/*
* A nonzero return code does not mean failure, it means
* that the architecture quirk does not want any
* generic (timer) setup to be performed after this:
*/
if (arch_time_init_quirk())
if (x86_quirks->arch_time_init())
return;
}
......
......@@ -19,13 +19,17 @@ static inline int is_visws_box(void) { return 0; }
/*
* Any setup quirks to be performed?
*/
extern int (*arch_time_init_quirk)(void);
extern int (*arch_pre_intr_init_quirk)(void);
extern int (*arch_intr_init_quirk)(void);
extern int (*arch_trap_init_quirk)(void);
extern char * (*arch_memory_setup_quirk)(void);
extern int (*mach_get_smp_config_quirk)(unsigned int early);
extern int (*mach_find_smp_config_quirk)(unsigned int reserve);
struct x86_quirks {
int (*arch_time_init)(void);
int (*arch_pre_intr_init)(void);
int (*arch_intr_init)(void);
int (*arch_trap_init)(void);
char * (*arch_memory_setup)(void);
int (*mach_get_smp_config)(unsigned int early);
int (*mach_find_smp_config)(unsigned int reserve);
};
extern struct x86_quirks *x86_quirks;
#ifndef CONFIG_PARAVIRT
#define paravirt_post_allocator_init() do {} while (0)
......
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