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author | Ingo Molnar <mingo@elte.hu> | 2008-07-29 00:07:55 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-29 00:07:55 +0200 |
commit | cb28a1bbdb4790378e7366d6c9ee1d2340b84f92 (patch) | |
tree | 316436f77dac75335fd2c3ef5f109e71606c50d3 /arch/x86/kernel/smpboot.c | |
parent | b6d4f7e3ef25beb8c658c97867d98883e69dc544 (diff) | |
parent | f934fb19ef34730263e6afc01e8ec27a8a71470f (diff) | |
download | kernel_samsung_smdk4412-cb28a1bbdb4790378e7366d6c9ee1d2340b84f92.zip kernel_samsung_smdk4412-cb28a1bbdb4790378e7366d6c9ee1d2340b84f92.tar.gz kernel_samsung_smdk4412-cb28a1bbdb4790378e7366d6c9ee1d2340b84f92.tar.bz2 |
Merge branch 'linus' into core/generic-dma-coherent
Conflicts:
arch/x86/Kconfig
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/smpboot.c')
-rw-r--r-- | arch/x86/kernel/smpboot.c | 116 |
1 files changed, 53 insertions, 63 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 687376a..3325127 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -216,7 +216,7 @@ static void __cpuinit smp_callin(void) panic("%s: phys CPU#%d, CPU#%d already present??\n", __func__, phys_id, cpuid); } - Dprintk("CPU#%d (phys ID: %d) waiting for CALLOUT\n", cpuid, phys_id); + pr_debug("CPU#%d (phys ID: %d) waiting for CALLOUT\n", cpuid, phys_id); /* * STARTUP IPIs are fragile beasts as they might sometimes @@ -251,7 +251,7 @@ static void __cpuinit smp_callin(void) * boards) */ - Dprintk("CALLIN, before setup_local_APIC().\n"); + pr_debug("CALLIN, before setup_local_APIC().\n"); smp_callin_clear_local_apic(); setup_local_APIC(); end_local_APIC_setup(); @@ -266,7 +266,7 @@ static void __cpuinit smp_callin(void) local_irq_enable(); calibrate_delay(); local_irq_disable(); - Dprintk("Stack at about %p\n", &cpuid); + pr_debug("Stack at about %p\n", &cpuid); /* * Save our processor parameters @@ -438,7 +438,7 @@ void __cpuinit set_cpu_sibling_map(int cpu) cpu_set(cpu, cpu_sibling_setup_map); if (smp_num_siblings > 1) { - for_each_cpu_mask(i, cpu_sibling_setup_map) { + for_each_cpu_mask_nr(i, cpu_sibling_setup_map) { if (c->phys_proc_id == cpu_data(i).phys_proc_id && c->cpu_core_id == cpu_data(i).cpu_core_id) { cpu_set(i, per_cpu(cpu_sibling_map, cpu)); @@ -461,7 +461,7 @@ void __cpuinit set_cpu_sibling_map(int cpu) return; } - for_each_cpu_mask(i, cpu_sibling_setup_map) { + for_each_cpu_mask_nr(i, cpu_sibling_setup_map) { if (per_cpu(cpu_llc_id, cpu) != BAD_APICID && per_cpu(cpu_llc_id, cpu) == per_cpu(cpu_llc_id, i)) { cpu_set(i, c->llc_shared_map); @@ -513,7 +513,7 @@ static void impress_friends(void) /* * Allow the user to impress friends. */ - Dprintk("Before bogomips.\n"); + pr_debug("Before bogomips.\n"); for_each_possible_cpu(cpu) if (cpu_isset(cpu, cpu_callout_map)) bogosum += cpu_data(cpu).loops_per_jiffy; @@ -523,7 +523,7 @@ static void impress_friends(void) bogosum/(500000/HZ), (bogosum/(5000/HZ))%100); - Dprintk("Before bogocount - setting activated=1.\n"); + pr_debug("Before bogocount - setting activated=1.\n"); } static inline void __inquire_remote_apic(int apicid) @@ -546,8 +546,8 @@ static inline void __inquire_remote_apic(int apicid) printk(KERN_CONT "a previous APIC delivery may have failed\n"); - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(apicid)); - apic_write_around(APIC_ICR, APIC_DM_REMRD | regs[i]); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(apicid)); + apic_write(APIC_ICR, APIC_DM_REMRD | regs[i]); timeout = 0; do { @@ -579,29 +579,24 @@ wakeup_secondary_cpu(int logical_apicid, unsigned long start_eip) int maxlvt; /* Target chip */ - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(logical_apicid)); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(logical_apicid)); /* Boot on the stack */ /* Kick the second */ - apic_write_around(APIC_ICR, APIC_DM_NMI | APIC_DEST_LOGICAL); + apic_write(APIC_ICR, APIC_DM_NMI | APIC_DEST_LOGICAL); - Dprintk("Waiting for send to finish...\n"); + pr_debug("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); /* * Give the other CPU some time to accept the IPI. */ udelay(200); - /* - * Due to the Pentium erratum 3AP. - */ maxlvt = lapic_get_maxlvt(); - if (maxlvt > 3) { - apic_read_around(APIC_SPIV); + if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ apic_write(APIC_ESR, 0); - } accept_status = (apic_read(APIC_ESR) & 0xEF); - Dprintk("NMI sent.\n"); + pr_debug("NMI sent.\n"); if (send_status) printk(KERN_ERR "APIC never delivered???\n"); @@ -625,42 +620,44 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) return send_status; } + maxlvt = lapic_get_maxlvt(); + /* * Be paranoid about clearing APIC errors. */ if (APIC_INTEGRATED(apic_version[phys_apicid])) { - apic_read_around(APIC_SPIV); - apic_write(APIC_ESR, 0); + if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ + apic_write(APIC_ESR, 0); apic_read(APIC_ESR); } - Dprintk("Asserting INIT.\n"); + pr_debug("Asserting INIT.\n"); /* * Turn INIT on target chip */ - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); /* * Send IPI */ - apic_write_around(APIC_ICR, APIC_INT_LEVELTRIG | APIC_INT_ASSERT - | APIC_DM_INIT); + apic_write(APIC_ICR, + APIC_INT_LEVELTRIG | APIC_INT_ASSERT | APIC_DM_INIT); - Dprintk("Waiting for send to finish...\n"); + pr_debug("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); mdelay(10); - Dprintk("Deasserting INIT.\n"); + pr_debug("Deasserting INIT.\n"); /* Target chip */ - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); /* Send IPI */ - apic_write_around(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT); + apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT); - Dprintk("Waiting for send to finish...\n"); + pr_debug("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); mb(); @@ -687,55 +684,47 @@ wakeup_secondary_cpu(int phys_apicid, unsigned long start_eip) /* * Run STARTUP IPI loop. */ - Dprintk("#startup loops: %d.\n", num_starts); - - maxlvt = lapic_get_maxlvt(); + pr_debug("#startup loops: %d.\n", num_starts); for (j = 1; j <= num_starts; j++) { - Dprintk("Sending STARTUP #%d.\n", j); - apic_read_around(APIC_SPIV); - apic_write(APIC_ESR, 0); + pr_debug("Sending STARTUP #%d.\n", j); + if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ + apic_write(APIC_ESR, 0); apic_read(APIC_ESR); - Dprintk("After apic_write.\n"); + pr_debug("After apic_write.\n"); /* * STARTUP IPI */ /* Target chip */ - apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); + apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid)); /* Boot on the stack */ /* Kick the second */ - apic_write_around(APIC_ICR, APIC_DM_STARTUP - | (start_eip >> 12)); + apic_write(APIC_ICR, APIC_DM_STARTUP | (start_eip >> 12)); /* * Give the other CPU some time to accept the IPI. */ udelay(300); - Dprintk("Startup point 1.\n"); + pr_debug("Startup point 1.\n"); - Dprintk("Waiting for send to finish...\n"); + pr_debug("Waiting for send to finish...\n"); send_status = safe_apic_wait_icr_idle(); /* * Give the other CPU some time to accept the IPI. */ udelay(200); - /* - * Due to the Pentium erratum 3AP. - */ - if (maxlvt > 3) { - apic_read_around(APIC_SPIV); + if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ apic_write(APIC_ESR, 0); - } accept_status = (apic_read(APIC_ESR) & 0xEF); if (send_status || accept_status) break; } - Dprintk("After Startup.\n"); + pr_debug("After Startup.\n"); if (send_status) printk(KERN_ERR "APIC never delivered???\n"); @@ -768,7 +757,7 @@ static void __cpuinit do_fork_idle(struct work_struct *work) * * Must be called after the _cpu_pda pointer table is initialized. */ -static int __cpuinit get_local_pda(int cpu) +int __cpuinit get_local_pda(int cpu) { struct x8664_pda *oldpda, *newpda; unsigned long size = sizeof(struct x8664_pda); @@ -886,7 +875,7 @@ do_rest: if (get_uv_system_type() != UV_NON_UNIQUE_APIC) { - Dprintk("Setting warm reset code and vector.\n"); + pr_debug("Setting warm reset code and vector.\n"); store_NMI_vector(&nmi_high, &nmi_low); @@ -907,9 +896,9 @@ do_rest: /* * allow APs to start initializing. */ - Dprintk("Before Callout %d.\n", cpu); + pr_debug("Before Callout %d.\n", cpu); cpu_set(cpu, cpu_callout_map); - Dprintk("After Callout %d.\n", cpu); + pr_debug("After Callout %d.\n", cpu); /* * Wait 5s total for a response @@ -922,10 +911,10 @@ do_rest: if (cpu_isset(cpu, cpu_callin_map)) { /* number CPUs logically, starting from 1 (BSP is 0) */ - Dprintk("OK.\n"); + pr_debug("OK.\n"); printk(KERN_INFO "CPU%d: ", cpu); print_cpu_info(&cpu_data(cpu)); - Dprintk("CPU has booted.\n"); + pr_debug("CPU has booted.\n"); } else { boot_error = 1; if (*((volatile unsigned char *)trampoline_base) @@ -970,7 +959,7 @@ int __cpuinit native_cpu_up(unsigned int cpu) WARN_ON(irqs_disabled()); - Dprintk("++++++++++++++++++++=_---CPU UP %u\n", cpu); + pr_debug("++++++++++++++++++++=_---CPU UP %u\n", cpu); if (apicid == BAD_APICID || apicid == boot_cpu_physical_apicid || !physid_isset(apicid, phys_cpu_present_map)) { @@ -982,7 +971,7 @@ int __cpuinit native_cpu_up(unsigned int cpu) * Already booted CPU? */ if (cpu_isset(cpu, cpu_callin_map)) { - Dprintk("do_boot_cpu %d Already started\n", cpu); + pr_debug("do_boot_cpu %d Already started\n", cpu); return -ENOSYS; } @@ -1009,7 +998,7 @@ int __cpuinit native_cpu_up(unsigned int cpu) err = do_boot_cpu(apicid, cpu); #endif if (err) { - Dprintk("do_boot_cpu failed %d\n", err); + pr_debug("do_boot_cpu failed %d\n", err); return -EIO; } @@ -1213,7 +1202,7 @@ void __init native_smp_prepare_boot_cpu(void) void __init native_smp_cpus_done(unsigned int max_cpus) { - Dprintk("Boot done.\n"); + pr_debug("Boot done.\n"); impress_friends(); smp_checks(); @@ -1230,7 +1219,7 @@ static void remove_siblinginfo(int cpu) int sibling; struct cpuinfo_x86 *c = &cpu_data(cpu); - for_each_cpu_mask(sibling, per_cpu(cpu_core_map, cpu)) { + for_each_cpu_mask_nr(sibling, per_cpu(cpu_core_map, cpu)) { cpu_clear(cpu, per_cpu(cpu_core_map, sibling)); /*/ * last thread sibling in this cpu core going down @@ -1239,7 +1228,7 @@ static void remove_siblinginfo(int cpu) cpu_data(sibling).booted_cores--; } - for_each_cpu_mask(sibling, per_cpu(cpu_sibling_map, cpu)) + for_each_cpu_mask_nr(sibling, per_cpu(cpu_sibling_map, cpu)) cpu_clear(cpu, per_cpu(cpu_sibling_map, sibling)); cpus_clear(per_cpu(cpu_sibling_map, cpu)); cpus_clear(per_cpu(cpu_core_map, cpu)); @@ -1311,7 +1300,7 @@ static void __ref remove_cpu_from_maps(int cpu) cpu_clear(cpu, cpu_callout_map); cpu_clear(cpu, cpu_callin_map); /* was set by cpu_init() */ - clear_bit(cpu, (unsigned long *)&cpu_initialized); + cpu_clear(cpu, cpu_initialized); numa_remove_cpu(cpu); } @@ -1390,7 +1379,8 @@ static int __init parse_maxcpus(char *arg) { extern unsigned int maxcpus; - maxcpus = simple_strtoul(arg, NULL, 0); + if (arg) + maxcpus = simple_strtoul(arg, NULL, 0); return 0; } early_param("maxcpus", parse_maxcpus); |