summaryrefslogtreecommitdiffstats
path: root/arch/x86/mach-default/setup.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/mach-default/setup.c')
-rw-r--r--arch/x86/mach-default/setup.c74
1 files changed, 31 insertions, 43 deletions
diff --git a/arch/x86/mach-default/setup.c b/arch/x86/mach-default/setup.c
index 0c28a071824c..48278fa7d3de 100644
--- a/arch/x86/mach-default/setup.c
+++ b/arch/x86/mach-default/setup.c
@@ -10,6 +10,14 @@
#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
@@ -29,6 +37,10 @@ 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())
+ return;
+ }
init_ISA_irqs();
}
@@ -52,6 +64,10 @@ static struct irqaction irq2 = {
**/
void __init intr_init_hook(void)
{
+ if (arch_intr_init_quirk) {
+ if (arch_intr_init_quirk())
+ return;
+ }
#ifdef CONFIG_X86_LOCAL_APIC
apic_intr_init();
#endif
@@ -65,7 +81,7 @@ void __init intr_init_hook(void)
*
* Description:
* generally used to activate any machine specific identification
- * routines that may be needed before setup_arch() runs. On VISWS
+ * routines that may be needed before setup_arch() runs. On Voyager
* this is used to get the board revision and type.
**/
void __init pre_setup_arch_hook(void)
@@ -81,6 +97,10 @@ void __init pre_setup_arch_hook(void)
**/
void __init trap_init_hook(void)
{
+ if (arch_trap_init_quirk) {
+ if (arch_trap_init_quirk())
+ return;
+ }
}
static struct irqaction irq0 = {
@@ -99,6 +119,16 @@ static struct irqaction irq0 = {
**/
void __init time_init_hook(void)
{
+ if (arch_time_init_quirk) {
+ /*
+ * 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())
+ return;
+ }
+
irq0.mask = cpumask_of_cpu(0);
setup_irq(0, &irq0);
}
@@ -142,45 +172,3 @@ static int __init print_ipi_mode(void)
late_initcall(print_ipi_mode);
-/**
- * machine_specific_memory_setup - Hook for machine specific memory setup.
- *
- * Description:
- * This is included late in kernel/setup.c so that it can make
- * use of all of the static functions.
- **/
-
-char * __init machine_specific_memory_setup(void)
-{
- char *who;
-
-
- who = "BIOS-e820";
-
- /*
- * Try to copy the BIOS-supplied E820-map.
- *
- * Otherwise fake a memory map; one section from 0k->640k,
- * the next section from 1mb->appropriate_mem_k
- */
- sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
- if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries)
- < 0) {
- unsigned long mem_size;
-
- /* compare results from other methods and take the greater */
- if (boot_params.alt_mem_k
- < boot_params.screen_info.ext_mem_k) {
- mem_size = boot_params.screen_info.ext_mem_k;
- who = "BIOS-88";
- } else {
- mem_size = boot_params.alt_mem_k;
- who = "BIOS-e801";
- }
-
- e820.nr_map = 0;
- add_memory_region(0, LOWMEMSIZE(), E820_RAM);
- add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM);
- }
- return who;
-}
OpenPOWER on IntegriCloud