i386 changes for extended cpu masks. Basically force various things
that can possibly be used with NR_CPUS > BITS_PER_LONG in arch/i386
to pass typechecking and use the cpumask_t data type. For things that
simply can't be used with the larger systems, I use the cpus_coerce()
escape hatch to avoid things getting awkward.
Changes made only for flat logical tinySMP boxen and NUMA-Q; voyager
and "other" (not sure what "bigsmp" refers to) kind of got left out
since I don't really know my way around their code and I don't have
any systems of their kind to testboot on.
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/apic.c cpu-2.5.67-bk6-1/arch/i386/kernel/apic.c
--- linux-2.5.67-bk6/arch/i386/kernel/apic.c 2003-04-07 10:33:02.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/apic.c 2003-04-15 14:39:36.000000000 -0700
@@ -1136,7 +1136,8 @@ int __init APIC_init_uniprocessor (void)
connect_bsp_APIC();
- phys_cpu_present_map = 1 << boot_cpu_physical_apicid;
+ cpus_clear(phys_cpu_present_map);
+ cpu_set(boot_cpu_physical_apicid, phys_cpu_present_map);
setup_local_APIC();
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/cpu/proc.c cpu-2.5.67-bk6-1/arch/i386/kernel/cpu/proc.c
--- linux-2.5.67-bk6/arch/i386/kernel/cpu/proc.c 2003-04-07 10:32:29.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/cpu/proc.c 2003-04-15 14:39:36.000000000 -0700
@@ -60,7 +60,7 @@ static int show_cpuinfo(struct seq_file
int fpu_exception;
#ifdef CONFIG_SMP
- if (!(cpu_online_map & (1<<n)))
+ if (!cpu_online(n))
return 0;
#endif
seq_printf(m, "processor\t: %d\n"
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/io_apic.c cpu-2.5.67-bk6-1/arch/i386/kernel/io_apic.c
--- linux-2.5.67-bk6/arch/i386/kernel/io_apic.c 2003-04-15 14:37:51.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/io_apic.c 2003-04-15 14:39:36.000000000 -0700
@@ -240,22 +240,22 @@ static void clear_IO_APIC (void)
clear_IO_APIC_pin(apic, pin);
}
-static void set_ioapic_affinity (unsigned int irq, unsigned long mask)
+static void set_ioapic_affinity (unsigned int irq, unsigned long dest)
{
- unsigned long flags;
+ unsigned long flags, regval = dest;
int pin;
struct irq_pin_list *entry = irq_2_pin + irq;
/*
* Only the first 8 bits are valid.
*/
- mask = mask << 24;
+ regval <<= 24;
spin_lock_irqsave(&ioapic_lock, flags);
for (;;) {
pin = entry->pin;
if (pin == -1)
break;
- io_apic_write(entry->apic, 0x10 + 1 + pin*2, mask);
+ io_apic_write(entry->apic, 0x10 + 1 + pin*2, regval);
if (!entry->next)
break;
entry = irq_2_pin + entry->next;
@@ -277,7 +277,7 @@ static void set_ioapic_affinity (unsigne
# define Dprintk(x...)
# endif
-extern unsigned long irq_affinity[NR_IRQS];
+extern cpumask_t irq_affinity[NR_IRQS];
static int __cacheline_aligned pending_irq_balance_apicid[NR_IRQS];
static int irqbalance_disabled = NO_BALANCE_IRQ;
@@ -296,8 +296,7 @@ struct irq_cpu_info {
#define IDLE_ENOUGH(cpu,now) \
(idle_cpu(cpu) && ((now) - irq_stat[(cpu)].idle_timestamp > 1))
-#define IRQ_ALLOWED(cpu,allowed_mask) \
- ((1 << cpu) & (allowed_mask))
+#define IRQ_ALLOWED(cpu, allowed_mask) cpu_isset(cpu, allowed_mask)
#define CPU_TO_PACKAGEINDEX(i) \
((physical_balance && i > cpu_sibling_map[i]) ? cpu_sibling_map[i] : i)
@@ -309,7 +308,7 @@ struct irq_cpu_info {
long balanced_irq_interval = MAX_BALANCED_IRQ_INTERVAL;
-static unsigned long move(int curr_cpu, unsigned long allowed_mask,
+static unsigned long move(int curr_cpu, cpumask_t allowed_mask,
unsigned long now, int direction)
{
int search_idle = 1;
@@ -339,13 +338,13 @@ inside:
static inline void balance_irq(int cpu, int irq)
{
unsigned long now = jiffies;
- unsigned long allowed_mask;
+ cpumask_t allowed_mask;
unsigned int new_cpu;
if (irqbalance_disabled)
return;
- allowed_mask = cpu_online_map & irq_affinity[irq];
+ cpus_and(allowed_mask, cpu_online_map, irq_affinity[irq]);
new_cpu = move(cpu, allowed_mask, now, 1);
if (cpu != new_cpu) {
irq_desc_t *desc = irq_desc + irq;
@@ -388,8 +387,7 @@ static void do_irq_balance(void)
int tmp_loaded, first_attempt = 1;
unsigned long tmp_cpu_irq;
unsigned long imbalance = 0;
- unsigned long allowed_mask;
- unsigned long target_cpu_mask;
+ cpumask_t allowed_mask, target_cpu_mask, tmp;
for (i = 0; i < NR_CPUS; i++) {
int package_index;
@@ -538,10 +536,12 @@ tryanotherirq:
CPU_IRQ(cpu_sibling_map[min_loaded]))
min_loaded = cpu_sibling_map[min_loaded];
- allowed_mask = cpu_online_map & irq_affinity[selected_irq];
- target_cpu_mask = 1 << min_loaded;
+ cpus_and(allowed_mask, cpu_online_map, irq_affinity[selected_irq]);
+ cpus_clear(target_cpu_mask);
+ cpu_set(min_loaded, target_cpu_mask);
+ cpus_and(tmp, target_cpu_mask, allowed_mask);
- if (target_cpu_mask & allowed_mask) {
+ if (!cpus_empty(tmp)) {
irq_desc_t *desc = irq_desc + selected_irq;
unsigned long flags;
@@ -601,12 +601,14 @@ static int __init balanced_irq_init(void
{
int i;
struct cpuinfo_x86 *c;
+ cpumask_t tmp;
- c = &boot_cpu_data;
+ cpus_shift_right(tmp, cpu_online_map, 2);
+ c = &boot_cpu_data;
if (irqbalance_disabled)
return 0;
- /* disable irqbalance completely if there is only one processor online */
+ /* disable irqbalance completely if there is only one processor online */
if (num_online_cpus() < 2) {
irqbalance_disabled = 1;
return 0;
@@ -615,7 +617,7 @@ static int __init balanced_irq_init(void
* Enable physical balance only if more than 1 physical processor
* is present
*/
- if (smp_num_siblings > 1 && cpu_online_map >> 2)
+ if (smp_num_siblings > 1 && !cpus_empty(tmp))
physical_balance = 1;
for (i = 0; i < NR_CPUS; i++) {
@@ -1570,6 +1572,10 @@ static void __init setup_ioapic_ids_from
/* This gets done during IOAPIC enumeration for ACPI. */
return;
+ /*
+ * This is broken; anything with a real cpu count has to
+ * circumvent this idiocy regardless.
+ */
phys_id_present_map = ioapic_phys_id_map(phys_cpu_present_map);
/*
@@ -1597,8 +1603,9 @@ static void __init setup_ioapic_ids_from
* system must have a unique ID or we get lots of nice
* 'stuck on smp_invalidate_needed IPI wait' messages.
*/
- if (check_apicid_used(phys_id_present_map,
- mp_ioapics[apic].mpc_apicid)) {
+
+ /* MAJOR BRAINDAMAGE */
+ if (phys_id_present_map & (1UL << mp_ioapics[apic].mpc_apicid)) {
printk(KERN_ERR "BIOS bug, IO-APIC#%d ID %d is already used!...\n",
apic, mp_ioapics[apic].mpc_apicid);
for (i = 0; i < 0xf; i++)
@@ -2197,7 +2204,7 @@ int __init io_apic_get_unique_id (int io
*/
if (!apic_id_map)
- apic_id_map = phys_cpu_present_map;
+ apic_id_map = ioapic_phys_id_map(phys_cpu_present_map);
spin_lock_irqsave(&ioapic_lock, flags);
*(int *)®_00 = io_apic_read(ioapic, 0);
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/irq.c cpu-2.5.67-bk6-1/arch/i386/kernel/irq.c
--- linux-2.5.67-bk6/arch/i386/kernel/irq.c 2003-04-07 10:30:39.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/irq.c 2003-04-15 14:39:36.000000000 -0700
@@ -42,9 +42,10 @@
#include <asm/pgalloc.h>
#include <asm/delay.h>
#include <asm/desc.h>
+#include <asm/mpspec.h>
#include <asm/irq.h>
-
+#include "mach_apic.h"
/*
* Linux has a controller-independent x86 interrupt architecture.
@@ -799,13 +800,13 @@ int setup_irq(unsigned int irq, struct i
static struct proc_dir_entry * root_irq_dir;
static struct proc_dir_entry * irq_dir [NR_IRQS];
-#define HEX_DIGITS 8
+#define HEX_DIGITS (2*sizeof(cpumask_t))
static unsigned int parse_hex_value (const char *buffer,
- unsigned long count, unsigned long *ret)
+ unsigned long count, cpumask_t *ret)
{
unsigned char hexnum [HEX_DIGITS];
- unsigned long value;
+ cpumask_t value = CPU_MASK_NONE;
int i;
if (!count)
@@ -819,10 +820,10 @@ static unsigned int parse_hex_value (con
* Parse the first 8 characters as a hex string, any non-hex char
* is end-of-string. '00e1', 'e1', '00E1', 'E1' are all the same.
*/
- value = 0;
for (i = 0; i < count; i++) {
unsigned int c = hexnum[i];
+ int k;
switch (c) {
case '0' ... '9': c -= '0'; break;
@@ -831,7 +832,10 @@ static unsigned int parse_hex_value (con
default:
goto out;
}
- value = (value << 4) | c;
+ cpus_shift_left(value, value, 4);
+ for (k = 0; k < 4; ++k)
+ if (test_bit(k, (unsigned long *)&c))
+ cpu_set(k, value);
}
out:
*ret = value;
@@ -842,20 +846,31 @@ out:
static struct proc_dir_entry * smp_affinity_entry [NR_IRQS];
-unsigned long irq_affinity [NR_IRQS] = { [0 ... NR_IRQS-1] = ~0UL };
+cpumask_t irq_affinity [NR_IRQS] = { [0 ... NR_IRQS-1] = CPU_MASK_ALL };
static int irq_affinity_read_proc (char *page, char **start, off_t off,
int count, int *eof, void *data)
{
+ int k, len;
+ cpumask_t tmp = irq_affinity[(long)data];
+
if (count < HEX_DIGITS+1)
return -EINVAL;
- return sprintf (page, "%08lx\n", irq_affinity[(long)data]);
+
+ len = 0;
+ for (k = 0; k < sizeof(cpumask_t)/sizeof(unsigned long); ++k) {
+ int j = sprintf (page, "%08lx\n", cpus_coerce(tmp));
+ cpus_shift_right(tmp, tmp, BITS_PER_LONG);
+ len += j;
+ page += j;
+ }
+ return len;
}
static int irq_affinity_write_proc (struct file *file, const char *buffer,
unsigned long count, void *data)
{
int irq = (long) data, full_count = count, err;
- unsigned long new_value;
+ cpumask_t new_value, tmp;
if (!irq_desc[irq].handler->set_affinity)
return -EIO;
@@ -867,11 +882,12 @@ static int irq_affinity_write_proc (stru
* way to make the system unusable accidentally :-) At least
* one online CPU still has to be targeted.
*/
- if (!(new_value & cpu_online_map))
+ cpus_and(tmp, new_value, cpu_online_map);
+ if (cpus_empty(tmp))
return -EINVAL;
irq_affinity[irq] = new_value;
- irq_desc[irq].handler->set_affinity(irq, new_value);
+ irq_desc[irq].handler->set_affinity(irq, cpu_to_logical_apicid(first_cpu(new_value)));
return full_count;
}
@@ -890,8 +906,9 @@ static int prof_cpu_mask_read_proc (char
static int prof_cpu_mask_write_proc (struct file *file, const char *buffer,
unsigned long count, void *data)
{
- unsigned long *mask = (unsigned long *) data, full_count = count, err;
- unsigned long new_value;
+ cpumask_t *mask = (cpumask_t *)data;
+ unsigned long full_count = count, err;
+ cpumask_t new_value;
err = parse_hex_value(buffer, count, &new_value);
if (err)
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/ldt.c cpu-2.5.67-bk6-1/arch/i386/kernel/ldt.c
--- linux-2.5.67-bk6/arch/i386/kernel/ldt.c 2003-04-07 10:32:15.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/ldt.c 2003-04-15 14:39:36.000000000 -0700
@@ -56,9 +56,11 @@ static int alloc_ldt(mm_context_t *pc, i
if (reload) {
#ifdef CONFIG_SMP
+ cpumask_t tmp = CPU_MASK_NONE;
preempt_disable();
+ cpu_set(smp_processor_id(), tmp);
load_LDT(pc);
- if (current->mm->cpu_vm_mask != (1 << smp_processor_id()))
+ if (!cpu_isset(smp_processor_id(), current->mm->cpu_vm_mask))
smp_call_function(flush_ldt, 0, 1, 1);
preempt_enable();
#else
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/mpparse.c cpu-2.5.67-bk6-1/arch/i386/kernel/mpparse.c
--- linux-2.5.67-bk6/arch/i386/kernel/mpparse.c 2003-04-07 10:31:00.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/mpparse.c 2003-04-15 14:39:36.000000000 -0700
@@ -70,7 +70,7 @@ unsigned int boot_cpu_logical_apicid = -
static unsigned int __initdata num_processors;
/* Bitmask of physically existing CPUs */
-unsigned long phys_cpu_present_map;
+cpumask_t phys_cpu_present_map;
int x86_summit = 0;
u8 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID };
@@ -106,6 +106,7 @@ static struct mpc_config_translation *tr
void __init MP_processor_info (struct mpc_config_processor *m)
{
int ver, apicid;
+ cpumask_t tmp;
if (!(m->mpc_cpuflag & CPU_ENABLED))
return;
@@ -176,7 +177,8 @@ void __init MP_processor_info (struct mp
}
ver = m->mpc_apicver;
- phys_cpu_present_map |= apicid_to_cpu_present(apicid);
+ tmp = apicid_to_cpu_present(apicid);
+ cpus_or(phys_cpu_present_map, phys_cpu_present_map, tmp);
/*
* Validate version
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/reboot.c cpu-2.5.67-bk6-1/arch/i386/kernel/reboot.c
--- linux-2.5.67-bk6/arch/i386/kernel/reboot.c 2003-04-07 10:30:59.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/reboot.c 2003-04-15 14:39:36.000000000 -0700
@@ -226,7 +226,7 @@ void machine_restart(char * __unused)
if its not, default to the BSP */
if ((reboot_cpu == -1) ||
(reboot_cpu > (NR_CPUS -1)) ||
- !(phys_cpu_present_map & (1<<cpuid)))
+ !(cpu_isset(cpuid, phys_cpu_present_map)))
reboot_cpu = boot_cpu_physical_apicid;
reboot_smp = 0; /* use this as a flag to only go through this once*/
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/smp.c cpu-2.5.67-bk6-1/arch/i386/kernel/smp.c
--- linux-2.5.67-bk6/arch/i386/kernel/smp.c 2003-04-07 10:30:40.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/smp.c 2003-04-15 14:39:36.000000000 -0700
@@ -155,10 +155,14 @@ void send_IPI_self(int vector)
__send_IPI_shortcut(APIC_DEST_SELF, vector);
}
-static inline void send_IPI_mask_bitmask(int mask, int vector)
+/*
+ * This is only used on smaller machines.
+ */
+static inline void send_IPI_mask_bitmask(cpumask_t cpumask, int vector)
{
unsigned long cfg;
unsigned long flags;
+ unsigned long mask = cpus_coerce(cpumask);
local_irq_save(flags);
@@ -186,10 +190,10 @@ static inline void send_IPI_mask_bitmask
local_irq_restore(flags);
}
-static inline void send_IPI_mask_sequence(int mask, int vector)
+static inline void send_IPI_mask_sequence(cpumask_t mask, int vector)
{
unsigned long cfg, flags;
- unsigned int query_cpu, query_mask;
+ unsigned int query_cpu;
/*
* Hack. The clustered APIC addressing mode doesn't allow us to send
@@ -200,8 +204,7 @@ static inline void send_IPI_mask_sequenc
local_irq_save(flags);
for (query_cpu = 0; query_cpu < NR_CPUS; ++query_cpu) {
- query_mask = 1 << query_cpu;
- if (query_mask & mask) {
+ if (cpu_isset(query_cpu, mask)) {
/*
* Wait for idle.
@@ -238,7 +241,7 @@ static inline void send_IPI_mask_sequenc
* Optimizations Manfred Spraul <manfred@colorfullife.com>
*/
-static volatile unsigned long flush_cpumask;
+static volatile cpumask_t flush_cpumask;
static struct mm_struct * flush_mm;
static unsigned long flush_va;
static spinlock_t tlbstate_lock = SPIN_LOCK_UNLOCKED;
@@ -255,7 +258,7 @@ static inline void leave_mm (unsigned lo
{
if (cpu_tlbstate[cpu].state == TLBSTATE_OK)
BUG();
- clear_bit(cpu, &cpu_tlbstate[cpu].active_mm->cpu_vm_mask);
+ cpu_clear(cpu, cpu_tlbstate[cpu].active_mm->cpu_vm_mask);
load_cr3(swapper_pg_dir);
}
@@ -311,7 +314,7 @@ asmlinkage void smp_invalidate_interrupt
cpu = get_cpu();
- if (!test_bit(cpu, &flush_cpumask))
+ if (!cpu_isset(cpu, flush_cpumask))
goto out;
/*
* This was a BUG() but until someone can quote me the
@@ -332,15 +335,17 @@ asmlinkage void smp_invalidate_interrupt
leave_mm(cpu);
}
ack_APIC_irq();
- clear_bit(cpu, &flush_cpumask);
-
+ smp_mb__before_clear_bit();
+ cpu_clear(cpu, flush_cpumask);
+ smp_mb__after_clear_bit();
out:
put_cpu_no_resched();
}
-static void flush_tlb_others (unsigned long cpumask, struct mm_struct *mm,
+static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
unsigned long va)
{
+ cpumask_t tmp;
/*
* A couple of (to be removed) sanity checks:
*
@@ -348,14 +353,12 @@ static void flush_tlb_others (unsigned l
* - current CPU must not be in mask
* - mask must exist :)
*/
- if (!cpumask)
- BUG();
- if ((cpumask & cpu_online_map) != cpumask)
- BUG();
- if (cpumask & (1 << smp_processor_id()))
- BUG();
- if (!mm)
- BUG();
+ BUG_ON(cpus_empty(cpumask));
+
+ cpus_and(tmp, cpumask, cpu_online_map);
+ BUG_ON(!cpus_equal(cpumask, tmp));
+ BUG_ON(cpu_isset(smp_processor_id(), cpumask));
+ BUG_ON(!mm);
/*
* i'm not happy about this global shared spinlock in the
@@ -367,15 +370,21 @@ static void flush_tlb_others (unsigned l
flush_mm = mm;
flush_va = va;
- atomic_set_mask(cpumask, &flush_cpumask);
+ /*
+ * Probably introduced a bug here. This was:
+ * atomic_set_mask(cpumask, &flush_cpumask);
+ */
+ flush_cpumask = cpumask;
+ mb();
/*
* We have to send the IPI only to
* CPUs affected.
*/
send_IPI_mask(cpumask, INVALIDATE_TLB_VECTOR);
- while (flush_cpumask)
- /* nothing. lockup detection does not belong here */;
+ while (!cpus_empty(flush_cpumask))
+ /* nothing. lockup detection does not belong here */
+ mb();
flush_mm = NULL;
flush_va = 0;
@@ -385,23 +394,25 @@ static void flush_tlb_others (unsigned l
void flush_tlb_current_task(void)
{
struct mm_struct *mm = current->mm;
- unsigned long cpu_mask;
+ cpumask_t cpu_mask;
preempt_disable();
- cpu_mask = mm->cpu_vm_mask & ~(1UL << smp_processor_id());
+ cpu_mask = mm->cpu_vm_mask;
+ cpu_clear(smp_processor_id(), cpu_mask);
local_flush_tlb();
- if (cpu_mask)
+ if (!cpus_empty(cpu_mask))
flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
preempt_enable();
}
void flush_tlb_mm (struct mm_struct * mm)
{
- unsigned long cpu_mask;
+ cpumask_t cpu_mask;
preempt_disable();
- cpu_mask = mm->cpu_vm_mask & ~(1UL << smp_processor_id());
+ cpu_mask = mm->cpu_vm_mask;
+ cpu_clear(smp_processor_id(), cpu_mask);
if (current->active_mm == mm) {
if (current->mm)
@@ -409,7 +420,7 @@ void flush_tlb_mm (struct mm_struct * mm
else
leave_mm(smp_processor_id());
}
- if (cpu_mask)
+ if (!cpus_empty(cpu_mask))
flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
preempt_enable();
@@ -418,10 +429,11 @@ void flush_tlb_mm (struct mm_struct * mm
void flush_tlb_page(struct vm_area_struct * vma, unsigned long va)
{
struct mm_struct *mm = vma->vm_mm;
- unsigned long cpu_mask;
+ cpumask_t cpu_mask;
preempt_disable();
- cpu_mask = mm->cpu_vm_mask & ~(1UL << smp_processor_id());
+ cpu_mask = mm->cpu_vm_mask;
+ cpu_clear(smp_processor_id(), cpu_mask);
if (current->active_mm == mm) {
if(current->mm)
@@ -430,7 +442,7 @@ void flush_tlb_page(struct vm_area_struc
leave_mm(smp_processor_id());
}
- if (cpu_mask)
+ if (!cpus_empty(cpu_mask))
flush_tlb_others(cpu_mask, mm, va);
preempt_enable();
@@ -457,7 +469,9 @@ void flush_tlb_all(void)
*/
void smp_send_reschedule(int cpu)
{
- send_IPI_mask(1 << cpu, RESCHEDULE_VECTOR);
+ cpumask_t cpumask = CPU_MASK_NONE;
+ cpu_set(cpu, cpumask);
+ send_IPI_mask(cpumask, RESCHEDULE_VECTOR);
}
/*
@@ -544,7 +558,7 @@ static void stop_this_cpu (void * dummy)
/*
* Remove this CPU:
*/
- clear_bit(smp_processor_id(), &cpu_online_map);
+ cpu_clear(smp_processor_id(), cpu_online_map);
local_irq_disable();
disable_local_APIC();
if (cpu_data[smp_processor_id()].hlt_works_ok)
diff -urpN linux-2.5.67-bk6/arch/i386/kernel/smpboot.c cpu-2.5.67-bk6-1/arch/i386/kernel/smpboot.c
--- linux-2.5.67-bk6/arch/i386/kernel/smpboot.c 2003-04-15 14:37:51.000000000 -0700
+++ cpu-2.5.67-bk6-1/arch/i386/kernel/smpboot.c 2003-04-15 14:39:36.000000000 -0700
@@ -62,11 +62,11 @@ int smp_num_siblings = 1;
int phys_proc_id[NR_CPUS]; /* Package ID of each logical CPU */
/* Bitmask of currently online CPUs */
-unsigned long cpu_online_map;
+cpumask_t cpu_online_map;
-static volatile unsigned long cpu_callin_map;
-volatile unsigned long cpu_callout_map;
-static unsigned long smp_commenced_mask;
+static volatile cpumask_t cpu_callin_map;
+volatile cpumask_t cpu_callout_map;
+static cpumask_t smp_commenced_mask;
/* Per CPU bogomips and other parameters */
struct cpuinfo_x86 cpu_data[NR_CPUS] __cacheline_aligned;
@@ -268,7 +268,7 @@ static void __init synchronize_tsc_bp (v
sum = 0;
for (i = 0; i < NR_CPUS; i++) {
- if (test_bit(i, &cpu_callout_map)) {
+ if (cpu_isset(i, cpu_callout_map)) {
t0 = tsc_values[i];
sum += t0;
}
@@ -277,7 +277,7 @@ static void __init synchronize_tsc_bp (v
sum = 0;
for (i = 0; i < NR_CPUS; i++) {
- if (!test_bit(i, &cpu_callout_map))
+ if (!cpu_isset(i, cpu_callout_map))
continue;
delta = tsc_values[i] - avg;
if (delta < 0)
@@ -353,7 +353,7 @@ void __init smp_callin(void)
*/
phys_id = GET_APIC_ID(apic_read(APIC_ID));
cpuid = smp_processor_id();
- if (test_bit(cpuid, &cpu_callin_map)) {
+ if (cpu_isset(cpuid, cpu_callin_map)) {
printk("huh, phys CPU#%d, CPU#%d already present??\n",
phys_id, cpuid);
BUG();
@@ -376,7 +376,7 @@ void __init smp_callin(void)
/*
* Has the boot CPU finished it's STARTUP sequence?
*/
- if (test_bit(cpuid, &cpu_callout_map))
+ if (cpu_isset(cpuid, cpu_callout_map))
break;
rep_nop();
}
@@ -417,7 +417,7 @@ void __init smp_callin(void)
/*
* Allow the master to continue.
*/
- set_bit(cpuid, &cpu_callin_map);
+ cpu_set(cpuid, cpu_callin_map);
/*
* Synchronize the TSC with the BP
@@ -442,7 +442,7 @@ int __init start_secondary(void *unused)
*/
cpu_init();
smp_callin();
- while (!test_bit(smp_processor_id(), &smp_commenced_mask))
+ while (!cpu_isset(smp_processor_id(), smp_commenced_mask))
rep_nop();
setup_secondary_APIC_clock();
if (nmi_watchdog == NMI_IO_APIC) {
@@ -456,7 +456,7 @@ int __init start_secondary(void *unused)
* the local TLBs too.
*/
local_flush_tlb();
- set_bit(smp_processor_id(), &cpu_online_map);
+ cpu_set(smp_processor_id(), cpu_online_map);
wmb();
return cpu_idle();
}
@@ -499,8 +499,8 @@ static struct task_struct * __init fork_
#ifdef CONFIG_NUMA
/* which logical CPUs are on which nodes */
-volatile unsigned long node_2_cpu_mask[MAX_NR_NODES] =
- { [0 ... MAX_NR_NODES-1] = 0 };
+volatile cpumask_t node_2_cpu_mask[MAX_NR_NODES] =
+ { [0 ... MAX_NR_NODES-1] = CPU_MASK_NONE };
/* which node each logical CPU is on */
volatile int cpu_2_node[NR_CPUS] = { [0 ... NR_CPUS-1] = 0 };
@@ -508,7 +508,7 @@ volatile int cpu_2_node[NR_CPUS] = { [0
static inline void map_cpu_to_node(int cpu, int node)
{
printk("Mapping cpu %d to node %d\n", cpu, node);
- node_2_cpu_mask[node] |= (1 << cpu);
+ cpu_set(cpu, node_2_cpu_mask[node]);
cpu_2_node[cpu] = node;
}
@@ -519,7 +519,7 @@ static inline void unmap_cpu_to_node(int
printk("Unmapping cpu %d from all nodes\n", cpu);
for (node = 0; node < MAX_NR_NODES; node ++)
- node_2_cpu_mask[node] &= ~(1 << cpu);
+ cpu_clear(cpu, node_2_cpu_mask[node]);
cpu_2_node[cpu] = -1;
}
#else /* !CONFIG_NUMA */
@@ -770,7 +770,7 @@ wakeup_secondary_cpu(int phys_apicid, un
}
#endif /* WAKE_SECONDARY_VIA_INIT */
-extern unsigned long cpu_initialized;
+extern cpumask_t cpu_initialized;
static int __init do_boot_cpu(int apicid)
/*
@@ -835,19 +835,19 @@ static int __init do_boot_cpu(int apicid
* allow APs to start initializing.
*/
Dprintk("Before Callout %d.\n", cpu);
- set_bit(cpu, &cpu_callout_map);
+ cpu_set(cpu, cpu_callout_map);
Dprintk("After Callout %d.\n", cpu);
/*
* Wait 5s total for a response
*/
for (timeout = 0; timeout < 50000; timeout++) {
- if (test_bit(cpu, &cpu_callin_map))
+ if (cpu_isset(cpu, cpu_callin_map))
break; /* It has booted */
udelay(100);
}
- if (test_bit(cpu, &cpu_callin_map)) {
+ if (cpu_isset(cpu, cpu_callin_map)) {
/* number CPUs logically, starting from 1 (BSP is 0) */
Dprintk("OK.\n");
printk("CPU%d: ", cpu);
@@ -868,8 +868,8 @@ static int __init do_boot_cpu(int apicid
if (boot_error) {
/* Try to put things back the way they were before ... */
unmap_cpu_to_logical_apicid(cpu);
- clear_bit(cpu, &cpu_callout_map); /* was set here (do_boot_cpu()) */
- clear_bit(cpu, &cpu_initialized); /* was set by cpu_init() */
+ cpu_clear(cpu, cpu_callout_map); /* was set here (do_boot_cpu()) */
+ cpu_clear(cpu, cpu_initialized); /* was set by cpu_init() */
cpucount--;
}
@@ -956,7 +956,8 @@ static void __init smp_boot_cpus(unsigne
if (!smp_found_config) {
printk(KERN_NOTICE "SMP motherboard not detected.\n");
smpboot_clear_io_apic_irqs();
- phys_cpu_present_map = 1;
+ cpus_clear(phys_cpu_present_map);
+ cpu_set(1, phys_cpu_present_map);
if (APIC_init_uniprocessor())
printk(KERN_NOTICE "Local APIC not detected."
" Using dummy APIC emulation.\n");
@@ -972,7 +973,7 @@ static void __init smp_boot_cpus(unsigne
if (!check_phys_apicid_present(boot_cpu_physical_apicid)) {
printk("weird, boot CPU (#%d) not listed by the BIOS.\n",
boot_cpu_physical_apicid);
- phys_cpu_present_map |= (1 << hard_smp_processor_id());
+ cpu_set(hard_smp_processor_id(), phys_cpu_present_map);
}
/*
@@ -983,7 +984,8 @@ static void __init smp_boot_cpus(unsigne
boot_cpu_physical_apicid);
printk(KERN_ERR "... forcing use of dummy APIC emulation. (tell your hw vendor)\n");
smpboot_clear_io_apic_irqs();
- phys_cpu_present_map = 1;
+ cpus_clear(phys_cpu_present_map);
+ cpu_set(1, phys_cpu_present_map);
return;
}
@@ -996,7 +998,7 @@ static void __init smp_boot_cpus(unsigne
smp_found_config = 0;
printk(KERN_INFO "SMP mode deactivated, forcing use of dummy APIC emulation.\n");
smpboot_clear_io_apic_irqs();
- phys_cpu_present_map = 1;
+ cpus_clear(phys_cpu_present_map);
return;
}
@@ -1051,7 +1053,7 @@ static void __init smp_boot_cpus(unsigne
} else {
unsigned long bogosum = 0;
for (cpu = 0; cpu < NR_CPUS; cpu++)
- if (cpu_callout_map & (1<<cpu))
+ if (cpu_isset(cpu, cpu_callout_map))
bogosum += cpu_data[cpu].loops_per_jiffy;
printk(KERN_INFO "Total of %d processors activated (%lu.%02lu BogoMIPS).\n",
cpucount+1,
@@ -1083,10 +1085,10 @@ static void __init smp_boot_cpus(unsigne
for (cpu = 0; cpu < NR_CPUS; cpu++) {
int i;
- if (!test_bit(cpu, &cpu_callout_map)) continue;
+ if (!cpu_isset(cpu, cpu_callout_map)) continue;
for (i = 0; i < NR_CPUS; i++) {
- if (i == cpu || !test_bit(i, &cpu_callout_map))
+ if (i == cpu || !cpu_isset(i, cpu_callout_map))
continue;
if (phys_proc_id[cpu] == phys_proc_id[i]) {
cpu_sibling_map[cpu] = i;
@@ -1121,28 +1123,28 @@ void __init smp_prepare_cpus(unsigned in
void __devinit smp_prepare_boot_cpu(void)
{
- set_bit(smp_processor_id(), &cpu_online_map);
- set_bit(smp_processor_id(), &cpu_callout_map);
+ cpu_set(smp_processor_id(), cpu_online_map);
+ cpu_set(smp_processor_id(), cpu_callout_map);
}
int __devinit __cpu_up(unsigned int cpu)
{
/* This only works at boot for x86. See "rewrite" above. */
- if (test_bit(cpu, &smp_commenced_mask)) {
+ if (cpu_isset(cpu, smp_commenced_mask)) {
local_irq_enable();
return -ENOSYS;
}
/* In case one didn't come up */
- if (!test_bit(cpu, &cpu_callin_map)) {
+ if (!cpu_isset(cpu, cpu_callin_map)) {
local_irq_enable();
return -EIO;
}
local_irq_enable();
/* Unleash the CPU! */
- set_bit(cpu, &smp_commenced_mask);
- while (!test_bit(cpu, &cpu_online_map))
+ cpu_set(cpu, smp_commenced_mask);
+ while (!cpu_isset(cpu, cpu_online_map))
mb();
return 0;
}
diff -urpN linux-2.5.67-bk6/include/asm-i386/highmem.h cpu-2.5.67-bk6-1/include/asm-i386/highmem.h
--- linux-2.5.67-bk6/include/asm-i386/highmem.h 2003-04-07 10:30:41.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/highmem.h 2003-04-15 14:39:40.000000000 -0700
@@ -22,6 +22,7 @@
#include <linux/config.h>
#include <linux/interrupt.h>
+#include <linux/threads.h>
#include <asm/kmap_types.h>
#include <asm/tlbflush.h>
@@ -39,7 +40,12 @@ extern void kmap_init(void);
* easily, subsequent pte tables have to be allocated in one physical
* chunk of RAM.
*/
+#if NR_CPUS <= 32
#define PKMAP_BASE (0xff800000UL)
+#else
+#define PKMAP_BASE (0xff600000UL)
+#endif
+
#ifdef CONFIG_X86_PAE
#define LAST_PKMAP 512
#else
diff -urpN linux-2.5.67-bk6/include/asm-i386/mach-default/mach_apic.h cpu-2.5.67-bk6-1/include/asm-i386/mach-default/mach_apic.h
--- linux-2.5.67-bk6/include/asm-i386/mach-default/mach_apic.h 2003-04-07 10:33:02.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/mach-default/mach_apic.h 2003-04-15 14:39:40.000000000 -0700
@@ -3,8 +3,12 @@
#define APIC_DFR_VALUE (APIC_DFR_FLAT)
+/*
+ * Flat mode can't support large numbers of cpus.
+ * The first word of cpu_online_map should cover us.
+ */
#ifdef CONFIG_SMP
- #define TARGET_CPUS (cpu_online_map)
+ #define TARGET_CPUS cpus_coerce(cpu_online_map)
#else
#define TARGET_CPUS 0x01
#endif
@@ -17,12 +21,13 @@
#define APIC_BROADCAST_ID 0x0F
#define check_apicid_used(bitmap, apicid) (bitmap & (1 << apicid))
-#define check_apicid_present(bit) (phys_cpu_present_map & (1 << bit))
+#define check_apicid_present(bit) cpu_isset(bit, phys_cpu_present_map)
+#if defined(CONFIG_X86_LOCAL_APIC) || defined(CONFIG_X86_UP_APIC)
static inline int apic_id_registered(void)
{
- return (test_bit(GET_APIC_ID(apic_read(APIC_ID)),
- &phys_cpu_present_map));
+ return cpu_isset(GET_APIC_ID(apic_read(APIC_ID)),
+ phys_cpu_present_map);
}
/*
@@ -41,10 +46,14 @@ static inline void init_apic_ldr(void)
val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
apic_write_around(APIC_LDR, val);
}
+#endif
-static inline ulong ioapic_phys_id_map(ulong phys_map)
+/*
+ * Only small machines use this APIC mode.
+ */
+static inline unsigned long ioapic_phys_id_map(cpumask_t phys_map)
{
- return phys_map;
+ return cpus_coerce(phys_map);
}
static inline void clustered_apic_check(void)
@@ -74,9 +83,12 @@ static inline int cpu_present_to_apicid(
return mps_cpu;
}
-static inline unsigned long apicid_to_cpu_present(int phys_apicid)
+static inline cpumask_t apicid_to_cpu_present(int phys_apicid)
{
- return (1ul << phys_apicid);
+ cpumask_t mask;
+ cpus_clear(mask);
+ cpu_set(phys_apicid, mask);
+ return mask;
}
static inline int mpc_apic_id(struct mpc_config_processor *m,
@@ -96,7 +108,7 @@ static inline void setup_portio_remap(vo
static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
{
- return test_bit(boot_cpu_physical_apicid, &phys_cpu_present_map);
+ return cpu_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
}
#endif /* __ASM_MACH_APIC_H */
diff -urpN linux-2.5.67-bk6/include/asm-i386/mach-default/mach_ipi.h cpu-2.5.67-bk6-1/include/asm-i386/mach-default/mach_ipi.h
--- linux-2.5.67-bk6/include/asm-i386/mach-default/mach_ipi.h 2003-04-07 10:32:30.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/mach-default/mach_ipi.h 2003-04-15 14:39:40.000000000 -0700
@@ -1,10 +1,10 @@
#ifndef __ASM_MACH_IPI_H
#define __ASM_MACH_IPI_H
-static inline void send_IPI_mask_bitmask(int mask, int vector);
+static inline void send_IPI_mask_bitmask(cpumask_t cpumask, int vector);
static inline void __send_IPI_shortcut(unsigned int shortcut, int vector);
-static inline void send_IPI_mask(int mask, int vector)
+static inline void send_IPI_mask(cpumask_t mask, int vector)
{
send_IPI_mask_bitmask(mask, vector);
}
diff -urpN linux-2.5.67-bk6/include/asm-i386/mach-numaq/mach_apic.h cpu-2.5.67-bk6-1/include/asm-i386/mach-numaq/mach_apic.h
--- linux-2.5.67-bk6/include/asm-i386/mach-numaq/mach_apic.h 2003-04-07 10:31:08.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/mach-numaq/mach_apic.h 2003-04-15 14:39:40.000000000 -0700
@@ -12,12 +12,12 @@
#define INT_DEST_MODE 0 /* physical delivery on LOCAL quad */
#define APIC_BROADCAST_ID 0x0F
-#define check_apicid_used(bitmap, apicid) ((bitmap) & (1 << (apicid)))
-#define check_apicid_present(bit) (phys_cpu_present_map & (1 << bit))
+#define check_apicid_used(bitmap, apicid) cpu_isset(apicid, bitmap)
+#define check_apicid_present(bit) cpu_isset(bit, phys_cpu_present_map)
static inline int apic_id_registered(void)
{
- return (1);
+ return 1;
}
static inline void init_apic_ldr(void)
@@ -40,10 +40,10 @@ static inline int multi_timer_check(int
return (apic != 0 && irq == 0);
}
-static inline ulong ioapic_phys_id_map(ulong phys_map)
+static inline unsigned long ioapic_phys_id_map(cpumask_t phys_map)
{
/* We don't have a good way to do this yet - hack */
- return 0xf;
+ return 0xFUL;
}
/* Mapping from cpu number to logical apicid */
@@ -68,9 +68,14 @@ static inline int apicid_to_node(int log
return (logical_apicid >> 4);
}
-static inline unsigned long apicid_to_cpu_present(int logical_apicid)
+static inline cpumask_t apicid_to_cpu_present(int logical_apicid)
{
- return ( (logical_apicid&0xf) << (4*apicid_to_node(logical_apicid)) );
+ cpumask_t mask = CPU_MASK_NONE;
+ int node = apicid_to_node(logical_apicid);
+ int cpu = __ffs(logical_apicid & 0xf);
+
+ cpu_set(cpu + 4*node, mask);
+ return mask;
}
static inline int mpc_apic_id(struct mpc_config_processor *m,
diff -urpN linux-2.5.67-bk6/include/asm-i386/mach-numaq/mach_ipi.h cpu-2.5.67-bk6-1/include/asm-i386/mach-numaq/mach_ipi.h
--- linux-2.5.67-bk6/include/asm-i386/mach-numaq/mach_ipi.h 2003-04-07 10:32:17.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/mach-numaq/mach_ipi.h 2003-04-15 14:39:40.000000000 -0700
@@ -1,18 +1,19 @@
#ifndef __ASM_MACH_IPI_H
#define __ASM_MACH_IPI_H
-static inline void send_IPI_mask_sequence(int mask, int vector);
+static inline void send_IPI_mask_sequence(cpumask_t, int vector);
-static inline void send_IPI_mask(int mask, int vector)
+static inline void send_IPI_mask(cpumask_t mask, int vector)
{
send_IPI_mask_sequence(mask, vector);
}
static inline void send_IPI_allbutself(int vector)
{
- unsigned long mask = cpu_online_map & ~(1 << smp_processor_id());
+ cpumask_t mask = cpu_online_map;
+ cpu_clear(smp_processor_id(), mask);
- if (mask)
+ if (!cpus_empty(mask))
send_IPI_mask(mask, vector);
}
diff -urpN linux-2.5.67-bk6/include/asm-i386/mmu_context.h cpu-2.5.67-bk6-1/include/asm-i386/mmu_context.h
--- linux-2.5.67-bk6/include/asm-i386/mmu_context.h 2003-04-07 10:30:33.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/mmu_context.h 2003-04-15 14:39:40.000000000 -0700
@@ -26,12 +26,12 @@ static inline void switch_mm(struct mm_s
{
if (likely(prev != next)) {
/* stop flush ipis for the previous mm */
- clear_bit(cpu, &prev->cpu_vm_mask);
+ cpu_clear(cpu, prev->cpu_vm_mask);
#ifdef CONFIG_SMP
cpu_tlbstate[cpu].state = TLBSTATE_OK;
cpu_tlbstate[cpu].active_mm = next;
#endif
- set_bit(cpu, &next->cpu_vm_mask);
+ cpu_set(cpu, next->cpu_vm_mask);
/* Re-load page tables */
load_cr3(next->pgd);
@@ -45,9 +45,8 @@ static inline void switch_mm(struct mm_s
#ifdef CONFIG_SMP
else {
cpu_tlbstate[cpu].state = TLBSTATE_OK;
- if (cpu_tlbstate[cpu].active_mm != next)
- BUG();
- if (!test_and_set_bit(cpu, &next->cpu_vm_mask)) {
+ BUG_ON(cpu_tlbstate[cpu].active_mm != next);
+ if (!cpu_test_and_set(cpu, next->cpu_vm_mask)) {
/* We were in lazy tlb mode and leave_mm disabled
* tlb flush IPI delivery. We must reload %cr3.
*/
diff -urpN linux-2.5.67-bk6/include/asm-i386/mpspec.h cpu-2.5.67-bk6-1/include/asm-i386/mpspec.h
--- linux-2.5.67-bk6/include/asm-i386/mpspec.h 2003-04-07 10:30:33.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/mpspec.h 2003-04-15 14:39:40.000000000 -0700
@@ -1,6 +1,8 @@
#ifndef __ASM_MPSPEC_H
#define __ASM_MPSPEC_H
+#include <linux/cpumask.h>
+
/*
* Structure definitions for SMP machines following the
* Intel Multiprocessing Specification 1.1 and 1.4.
@@ -206,7 +208,7 @@ extern int quad_local_to_mp_bus_id [NR_C
extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES];
extern unsigned int boot_cpu_physical_apicid;
-extern unsigned long phys_cpu_present_map;
+extern cpumask_t phys_cpu_present_map;
extern int smp_found_config;
extern void find_smp_config (void);
extern void get_smp_config (void);
diff -urpN linux-2.5.67-bk6/include/asm-i386/numaq.h cpu-2.5.67-bk6-1/include/asm-i386/numaq.h
--- linux-2.5.67-bk6/include/asm-i386/numaq.h 2003-04-07 10:31:42.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/numaq.h 2003-04-15 14:39:40.000000000 -0700
@@ -28,7 +28,7 @@
#ifdef CONFIG_X86_NUMAQ
-#define MAX_NUMNODES 8
+#define MAX_NUMNODES 16
extern void get_memcfg_numaq(void);
#define get_memcfg_numa() get_memcfg_numaq()
@@ -159,7 +159,7 @@ struct sys_cfg_data {
static inline unsigned long *get_zholes_size(int nid)
{
- return 0;
+ return NULL;
}
#endif /* CONFIG_X86_NUMAQ */
#endif /* NUMAQ_H */
diff -urpN linux-2.5.67-bk6/include/asm-i386/smp.h cpu-2.5.67-bk6-1/include/asm-i386/smp.h
--- linux-2.5.67-bk6/include/asm-i386/smp.h 2003-04-07 10:31:47.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/smp.h 2003-04-15 14:39:40.000000000 -0700
@@ -8,6 +8,7 @@
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/threads.h>
+#include <linux/cpumask.h>
#endif
#ifdef CONFIG_X86_LOCAL_APIC
@@ -31,8 +32,8 @@
*/
extern void smp_alloc_memory(void);
-extern unsigned long phys_cpu_present_map;
-extern unsigned long cpu_online_map;
+extern cpumask_t phys_cpu_present_map;
+extern cpumask_t cpu_online_map;
extern volatile unsigned long smp_invalidate_needed;
extern int pic_mode;
extern int smp_num_siblings;
@@ -55,37 +56,19 @@ extern void zap_low_mappings (void);
*/
#define smp_processor_id() (current_thread_info()->cpu)
-extern volatile unsigned long cpu_callout_map;
+extern volatile cpumask_t cpu_callout_map;
-#define cpu_possible(cpu) (cpu_callout_map & (1<<(cpu)))
-#define cpu_online(cpu) (cpu_online_map & (1<<(cpu)))
-
-#define for_each_cpu(cpu, mask) \
- for(mask = cpu_online_map; \
- cpu = __ffs(mask), mask != 0; \
- mask &= ~(1<<cpu))
-
-extern inline unsigned int num_online_cpus(void)
-{
- return hweight32(cpu_online_map);
-}
+#define cpu_possible(cpu) cpu_isset(cpu, cpu_callout_map)
/* We don't mark CPUs online until __cpu_up(), so we need another measure */
static inline int num_booting_cpus(void)
{
- return hweight32(cpu_callout_map);
+ return cpus_weight(cpu_callout_map);
}
extern void map_cpu_to_logical_apicid(void);
extern void unmap_cpu_to_logical_apicid(int cpu);
-extern inline int any_online_cpu(unsigned int mask)
-{
- if (mask & cpu_online_map)
- return __ffs(mask & cpu_online_map);
-
- return -1;
-}
#ifdef CONFIG_X86_LOCAL_APIC
static __inline int hard_smp_processor_id(void)
{
diff -urpN linux-2.5.67-bk6/include/asm-i386/topology.h cpu-2.5.67-bk6-1/include/asm-i386/topology.h
--- linux-2.5.67-bk6/include/asm-i386/topology.h 2003-04-07 10:30:44.000000000 -0700
+++ cpu-2.5.67-bk6-1/include/asm-i386/topology.h 2003-04-15 14:39:40.000000000 -0700
@@ -31,8 +31,10 @@
#include <asm/mpspec.h>
+#include <linux/cpumask.h>
+
/* Mappings between logical cpu number and node number */
-extern volatile unsigned long node_2_cpu_mask[];
+extern volatile cpumask_t node_2_cpu_mask[];
extern volatile int cpu_2_node[];
/* Returns the number of the node containing CPU 'cpu' */
@@ -49,7 +51,7 @@ static inline int cpu_to_node(int cpu)
#define parent_node(node) (node)
/* Returns a bitmask of CPUs on Node 'node'. */
-static inline unsigned long node_to_cpumask(int node)
+static inline cpumask_t node_to_cpumask(int node)
{
return node_2_cpu_mask[node];
}
@@ -57,14 +59,15 @@ static inline unsigned long node_to_cpum
/* Returns the number of the first CPU on Node 'node'. */
static inline int node_to_first_cpu(int node)
{
- return __ffs(node_to_cpumask(node));
+ cpumask_t mask = node_to_cpumask(node);
+ return first_cpu(mask);
}
/* Returns the number of the first MemBlk on Node 'node' */
#define node_to_memblk(node) (node)
/* Returns the number of the node containing PCI bus 'bus' */
-static inline unsigned long pcibus_to_cpumask(int bus)
+static inline cpumask_t pcibus_to_cpumask(int bus)
{
return node_to_cpumask(mp_bus_id_to_node[bus]);
}
-
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