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OpenCloudOS-Kernel
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x86: cleanup kernel/setup_64.c 

Clean it up before applying more patches to it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2008-01-30 13:30:39 +01:00 committed by Ingo Molnar
parent 5cabbd97b1
commit 04e1ba8521
1 changed files with 126 additions and 123 deletions
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73
arch/x86/kernel/setup_64.c
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@ -169,7 +169,7 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT; bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size); bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size);
if (bootmap == -1L) if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n",bootmap_size); panic("Cannot find bootmem map of size %ld\n", bootmap_size);
bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn); bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
e820_register_active_regions(0, start_pfn, end_pfn); e820_register_active_regions(0, start_pfn, end_pfn);
free_bootmem_with_active_regions(0, end_pfn); free_bootmem_with_active_regions(0, end_pfn);
@ -208,7 +208,8 @@ static void __init reserve_crashkernel(void)
unsigned long long crash_size, crash_base; unsigned long long crash_size, crash_base;
int ret; int ret;
free_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT; free_mem =
((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
ret = parse_crashkernel(boot_command_line, free_mem, ret = parse_crashkernel(boot_command_line, free_mem,
&crash_size, &crash_base); &crash_size, &crash_base);
@ -259,6 +260,8 @@ static void discover_ebda(void)
void __init setup_arch(char **cmdline_p) void __init setup_arch(char **cmdline_p)
{ {
unsigned i;
printk(KERN_INFO "Command line: %s\n", boot_command_line); printk(KERN_INFO "Command line: %s\n", boot_command_line);
ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev); ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
@ -441,12 +444,9 @@ void __init setup_arch(char **cmdline_p)
e820_reserve_resources(&code_resource, &data_resource, &bss_resource); e820_reserve_resources(&code_resource, &data_resource, &bss_resource);
e820_mark_nosave_regions(); e820_mark_nosave_regions();
{
unsigned i;
/* request I/O space for devices used on all i[345]86 PCs */ /* request I/O space for devices used on all i[345]86 PCs */
for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++) for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
request_resource(&ioport_resource, &standard_io_resources[i]); request_resource(&ioport_resource, &standard_io_resources[i]);
}
e820_setup_gap(); e820_setup_gap();
@ -483,9 +483,10 @@ static void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
if (n >= 0x80000005) { if (n >= 0x80000005) {
cpuid(0x80000005, &dummy, &ebx, &ecx, &edx); cpuid(0x80000005, &dummy, &ebx, &ecx, &edx);
printk(KERN_INFO "CPU: L1 I Cache: %dK (%d bytes/line), D cache %dK (%d bytes/line)\n", printk(KERN_INFO "CPU: L1 I Cache: %dK (%d bytes/line), "
"D cache %dK (%d bytes/line)\n",
edx>>24, edx&0xFF, ecx>>24, ecx&0xFF); edx>>24, edx&0xFF, ecx>>24, ecx&0xFF);
c->x86_cache_size=(ecx>>24)+(edx>>24); c->x86_cache_size = (ecx>>24) + (edx>>24);
/* On K8 L1 TLB is inclusive, so don't count it */ /* On K8 L1 TLB is inclusive, so don't count it */
c->x86_tlbsize = 0; c->x86_tlbsize = 0;
} }
@ -512,14 +513,15 @@ static void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
#ifdef CONFIG_NUMA #ifdef CONFIG_NUMA
static int nearby_node(int apicid) static int nearby_node(int apicid)
{ {
int i; int i, node;
for (i = apicid - 1; i >= 0; i--) { for (i = apicid - 1; i >= 0; i--) {
int node = apicid_to_node[i]; node = apicid_to_node[i];
if (node != NUMA_NO_NODE && node_online(node)) if (node != NUMA_NO_NODE && node_online(node))
return node; return node;
} }
for (i = apicid + 1; i < MAX_LOCAL_APIC; i++) { for (i = apicid + 1; i < MAX_LOCAL_APIC; i++) {
int node = apicid_to_node[i]; node = apicid_to_node[i];
if (node != NUMA_NO_NODE && node_online(node)) if (node != NUMA_NO_NODE && node_online(node))
return node; return node;
} }
@ -572,7 +574,9 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
but in the same order as the HT nodeids. but in the same order as the HT nodeids.
If that doesn't result in a usable node fall back to the If that doesn't result in a usable node fall back to the
path for the previous case. */ path for the previous case. */
int ht_nodeid = apicid - (cpu_data(0).phys_proc_id << bits); int ht_nodeid = apicid - (cpu_data(0).phys_proc_id << bits);
if (ht_nodeid >= 0 && if (ht_nodeid >= 0 &&
apicid_to_node[ht_nodeid] != NUMA_NO_NODE) apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
node = apicid_to_node[ht_nodeid]; node = apicid_to_node[ht_nodeid];
@ -599,8 +603,8 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
/* AMD systems with C1E don't have a working lAPIC timer. Check for that. */ /* AMD systems with C1E don't have a working lAPIC timer. Check for that. */
static __cpuinit int amd_apic_timer_broken(void) static __cpuinit int amd_apic_timer_broken(void)
{ {
u32 lo, hi; u32 lo, hi, eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
u32 eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE);
switch (eax & CPUID_XFAM) { switch (eax & CPUID_XFAM) {
case CPUID_XFAM_K8: case CPUID_XFAM_K8:
if ((eax & CPUID_XMOD) < CPUID_XMOD_REV_F) if ((eax & CPUID_XMOD) < CPUID_XMOD_REV_F)
@ -645,7 +649,8 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
/* On C+ stepping K8 rep microcode works well for copy/memset */ /* On C+ stepping K8 rep microcode works well for copy/memset */
level = cpuid_eax(1); level = cpuid_eax(1);
if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58)) if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) ||
level >= 0x0f58))
set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability); set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
if (c->x86 == 0x10 || c->x86 == 0x11) if (c->x86 == 0x10 || c->x86 == 0x11)
set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability); set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
@ -712,10 +717,11 @@ static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
if (smp_num_siblings == 1) { if (smp_num_siblings == 1) {
printk(KERN_INFO "CPU: Hyper-Threading is disabled\n"); printk(KERN_INFO "CPU: Hyper-Threading is disabled\n");
} else if (smp_num_siblings > 1 ) { } else if (smp_num_siblings > 1) {
if (smp_num_siblings > NR_CPUS) { if (smp_num_siblings > NR_CPUS) {
printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings); printk(KERN_WARNING "CPU: Unsupported number of "
"siblings %d", smp_num_siblings);
smp_num_siblings = 1; smp_num_siblings = 1;
return; return;
} }
@ -725,7 +731,7 @@ static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
smp_num_siblings = smp_num_siblings / c->x86_max_cores; smp_num_siblings = smp_num_siblings / c->x86_max_cores;
index_msb = get_count_order(smp_num_siblings) ; index_msb = get_count_order(smp_num_siblings);
core_bits = get_count_order(c->x86_max_cores); core_bits = get_count_order(c->x86_max_cores);
@ -734,8 +740,10 @@ static void __cpuinit detect_ht(struct cpuinfo_x86 *c)
} }
out: out:
if ((c->x86_max_cores * smp_num_siblings) > 1) { if ((c->x86_max_cores * smp_num_siblings) > 1) {
printk(KERN_INFO "CPU: Physical Processor ID: %d\n", c->phys_proc_id); printk(KERN_INFO "CPU: Physical Processor ID: %d\n",
printk(KERN_INFO "CPU: Processor Core ID: %d\n", c->cpu_core_id); c->phys_proc_id);
printk(KERN_INFO "CPU: Processor Core ID: %d\n",
c->cpu_core_id);
} }
#endif #endif
@ -783,7 +791,7 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c)
unsigned n; unsigned n;
init_intel_cacheinfo(c); init_intel_cacheinfo(c);
if (c->cpuid_level > 9 ) { if (c->cpuid_level > 9) {
unsigned eax = cpuid_eax(10); unsigned eax = cpuid_eax(10);
/* Check for version and the number of counters */ /* Check for version and the number of counters */
if ((eax & 0xff) && (((eax>>8) & 0xff) > 1)) if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
@ -969,7 +977,7 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
*/ */
if (c != &boot_cpu_data) { if (c != &boot_cpu_data) {
/* AND the already accumulated flags with these */ /* AND the already accumulated flags with these */
for (i = 0 ; i < NCAPINTS ; i++) for (i = 0; i < NCAPINTS; i++)
boot_cpu_data.x86_capability[i] &= c->x86_capability[i]; boot_cpu_data.x86_capability[i] &= c->x86_capability[i];
} }
@ -983,16 +991,15 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
#endif #endif
} }
void __cpuinit print_cpu_info(struct cpuinfo_x86 *c) void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
{ {
if (c->x86_model_id[0]) if (c->x86_model_id[0])
printk("%s", c->x86_model_id); printk(KERN_INFO "%s", c->x86_model_id);
if (c->x86_mask || c->cpuid_level >= 0) if (c->x86_mask || c->cpuid_level >= 0)
printk(" stepping %02x\n", c->x86_mask); printk(KERN_CONT " stepping %02x\n", c->x86_mask);
else else
printk("\n"); printk(KERN_CONT "\n");
} }
/* /*
@ -1002,7 +1009,7 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
static int show_cpuinfo(struct seq_file *m, void *v) static int show_cpuinfo(struct seq_file *m, void *v)
{ {
struct cpuinfo_x86 *c = v; struct cpuinfo_x86 *c = v;
int cpu = 0; int cpu = 0, i;
/* /*
* These flag bits must match the definitions in <asm/cpufeature.h>. * These flag bits must match the definitions in <asm/cpufeature.h>.
@ -1084,7 +1091,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
cpu = c->cpu_index; cpu = c->cpu_index;
#endif #endif
seq_printf(m,"processor\t: %u\n" seq_printf(m, "processor\t: %u\n"
"vendor_id\t: %s\n" "vendor_id\t: %s\n"
"cpu family\t: %d\n" "cpu family\t: %d\n"
"model\t\t: %d\n" "model\t\t: %d\n"
@ -1100,8 +1107,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
else else
seq_printf(m, "stepping\t: unknown\n"); seq_printf(m, "stepping\t: unknown\n");
if (cpu_has(c,X86_FEATURE_TSC)) { if (cpu_has(c, X86_FEATURE_TSC)) {
unsigned int freq = cpufreq_quick_get((unsigned)cpu); unsigned int freq = cpufreq_quick_get((unsigned)cpu);
if (!freq) if (!freq)
freq = cpu_khz; freq = cpu_khz;
seq_printf(m, "cpu MHz\t\t: %u.%03u\n", seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
@ -1130,12 +1138,9 @@ static int show_cpuinfo(struct seq_file *m, void *v)
"flags\t\t:", "flags\t\t:",
c->cpuid_level); c->cpuid_level);
{ for (i = 0; i < 32*NCAPINTS; i++)
int i;
for ( i = 0 ; i < 32*NCAPINTS ; i++ )
if (cpu_has(c, i) && x86_cap_flags[i] != NULL) if (cpu_has(c, i) && x86_cap_flags[i] != NULL)
seq_printf(m, " %s", x86_cap_flags[i]); seq_printf(m, " %s", x86_cap_flags[i]);
}
seq_printf(m, "\nbogomips\t: %lu.%02lu\n", seq_printf(m, "\nbogomips\t: %lu.%02lu\n",
c->loops_per_jiffy/(500000/HZ), c->loops_per_jiffy/(500000/HZ),
@ -1150,9 +1155,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
c->x86_phys_bits, c->x86_virt_bits); c->x86_phys_bits, c->x86_virt_bits);
seq_printf(m, "power management:"); seq_printf(m, "power management:");
{ for (i = 0; i < 32; i++) {
unsigned i;
for (i = 0; i < 32; i++)
if (c->x86_power & (1 << i)) { if (c->x86_power & (1 << i)) {
if (i < ARRAY_SIZE(x86_power_flags) && if (i < ARRAY_SIZE(x86_power_flags) &&
x86_power_flags[i]) x86_power_flags[i])
@ -1189,7 +1192,7 @@ static void c_stop(struct seq_file *m, void *v)
} }
struct seq_operations cpuinfo_op = { struct seq_operations cpuinfo_op = {
.start =c_start, .start = c_start,
.next = c_next, .next = c_next,
.stop = c_stop, .stop = c_stop,
.show = show_cpuinfo, .show = show_cpuinfo,