#include <linux/edd.h>
#include <linux/mmzone.h>
#include <linux/kexec.h>
+#include <linux/cpufreq.h>
#include <asm/mtrr.h>
#include <asm/uaccess.h>
#include <asm/setup.h>
#include <asm/mach_apic.h>
#include <asm/numa.h>
+#include <asm/sections.h>
/*
* Machine setup..
struct e820map e820;
extern int root_mountflags;
-extern char _text, _etext, _edata, _end;
char command_line[COMMAND_LINE_SIZE];
{
char c = ' ', *to = command_line, *from = COMMAND_LINE;
int len = 0;
+ int userdef = 0;
/* Save unparsed command line copy for /proc/cmdline */
memcpy(saved_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
if (!memcmp(from, "mem=", 4))
parse_memopt(from+4, &from);
+ if (!memcmp(from, "memmap=", 7)) {
+ /* exactmap option is for used defined memory */
+ if (!memcmp(from+7, "exactmap", 8)) {
+#ifdef CONFIG_CRASH_DUMP
+ /* If we are doing a crash dump, we
+ * still need to know the real mem
+ * size before original memory map is
+ * reset.
+ */
+ saved_max_pfn = e820_end_of_ram();
+#endif
+ from += 8+7;
+ end_pfn_map = 0;
+ e820.nr_map = 0;
+ userdef = 1;
+ }
+ else {
+ parse_memmapopt(from+7, &from);
+ userdef = 1;
+ }
+ }
+
#ifdef CONFIG_NUMA
if (!memcmp(from, "numa=", 5))
numa_setup(from+5);
break;
*(to++) = c;
}
+ if (userdef) {
+ printk(KERN_INFO "user-defined physical RAM map:\n");
+ e820_print_map("user");
+ }
*to = '\0';
*cmdline_p = command_line;
}
{
unsigned long bootmap_size, bootmap;
- memory_present(0, start_pfn, end_pfn);
bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size);
if (bootmap == -1L)
init_memory_mapping(0, (end_pfn_map << PAGE_SHIFT));
+ zap_low_mappings(0);
+
#ifdef CONFIG_ACPI
/*
* Initialize the ACPI boot-time table parser (gets the RSDP and SDT).
}
#endif
- sparse_init();
-
paging_init();
check_ioapic();
#endif
bits = 0;
- while ((1 << bits) < c->x86_num_cores)
+ while ((1 << bits) < c->x86_max_cores)
bits++;
/* Low order bits define the core id (index of core in socket) */
if (!node_online(node))
node = nearby_node(apicid);
}
- cpu_to_node[cpu] = node;
+ numa_set_node(cpu, node);
printk(KERN_INFO "CPU %d(%d) -> Node %d -> Core %d\n",
- cpu, c->x86_num_cores, node, cpu_core_id[cpu]);
+ cpu, c->x86_max_cores, node, cpu_core_id[cpu]);
#endif
#endif
}
display_cacheinfo(c);
if (c->extended_cpuid_level >= 0x80000008) {
- c->x86_num_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
- if (c->x86_num_cores & (c->x86_num_cores - 1))
- c->x86_num_cores = 1;
+ c->x86_max_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
+ if (c->x86_max_cores & (c->x86_max_cores - 1))
+ c->x86_max_cores = 1;
amd_detect_cmp(c);
}
{
#ifdef CONFIG_SMP
u32 eax, ebx, ecx, edx;
- int index_msb, tmp;
+ int index_msb, core_bits;
int cpu = smp_processor_id();
-
+
+ cpuid(1, &eax, &ebx, &ecx, &edx);
+
+ c->apicid = phys_pkg_id(0);
+
if (!cpu_has(c, X86_FEATURE_HT) || cpu_has(c, X86_FEATURE_CMP_LEGACY))
return;
- cpuid(1, &eax, &ebx, &ecx, &edx);
smp_num_siblings = (ebx & 0xff0000) >> 16;
-
+
if (smp_num_siblings == 1) {
printk(KERN_INFO "CPU: Hyper-Threading is disabled\n");
- } else if (smp_num_siblings > 1) {
- index_msb = 31;
- /*
- * At this point we only support two siblings per
- * processor package.
- */
+ } else if (smp_num_siblings > 1 ) {
+
if (smp_num_siblings > NR_CPUS) {
printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings);
smp_num_siblings = 1;
return;
}
- tmp = smp_num_siblings;
- while ((tmp & 0x80000000 ) == 0) {
- tmp <<=1 ;
- index_msb--;
- }
- if (smp_num_siblings & (smp_num_siblings - 1))
- index_msb++;
+
+ index_msb = get_count_order(smp_num_siblings);
phys_proc_id[cpu] = phys_pkg_id(index_msb);
-
+
printk(KERN_INFO "CPU: Physical Processor ID: %d\n",
phys_proc_id[cpu]);
- smp_num_siblings = smp_num_siblings / c->x86_num_cores;
+ smp_num_siblings = smp_num_siblings / c->x86_max_cores;
- tmp = smp_num_siblings;
- index_msb = 31;
- while ((tmp & 0x80000000) == 0) {
- tmp <<=1 ;
- index_msb--;
- }
- if (smp_num_siblings & (smp_num_siblings - 1))
- index_msb++;
+ index_msb = get_count_order(smp_num_siblings) ;
+
+ core_bits = get_count_order(c->x86_max_cores);
- cpu_core_id[cpu] = phys_pkg_id(index_msb);
+ cpu_core_id[cpu] = phys_pkg_id(index_msb) &
+ ((1 << core_bits) - 1);
- if (c->x86_num_cores > 1)
+ if (c->x86_max_cores > 1)
printk(KERN_INFO "CPU: Processor Core ID: %d\n",
cpu_core_id[cpu]);
}
node = apicid_to_node[hard_smp_processor_id()];
if (node == NUMA_NO_NODE)
node = 0;
- cpu_to_node[cpu] = node;
+ numa_set_node(cpu, node);
if (acpi_numa > 0)
printk(KERN_INFO "CPU %d -> Node %d\n", cpu, node);
unsigned eax = cpuid_eax(0x80000008);
c->x86_virt_bits = (eax >> 8) & 0xff;
c->x86_phys_bits = eax & 0xff;
+ /* CPUID workaround for Intel 0F34 CPU */
+ if (c->x86_vendor == X86_VENDOR_INTEL &&
+ c->x86 == 0xF && c->x86_model == 0x3 &&
+ c->x86_mask == 0x4)
+ c->x86_phys_bits = 36;
}
if (c->x86 == 15)
c->x86_cache_alignment = c->x86_clflush_size * 2;
if (c->x86 >= 15)
set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability);
- c->x86_num_cores = intel_num_cpu_cores(c);
+ c->x86_max_cores = intel_num_cpu_cores(c);
srat_detect_node();
}
c->x86_model_id[0] = '\0'; /* Unset */
c->x86_clflush_size = 64;
c->x86_cache_alignment = c->x86_clflush_size;
- c->x86_num_cores = 1;
+ c->x86_max_cores = 1;
c->extended_cpuid_level = 0;
memset(&c->x86_capability, 0, sizeof c->x86_capability);
c->x86 = (tfms >> 8) & 0xf;
c->x86_model = (tfms >> 4) & 0xf;
c->x86_mask = tfms & 0xf;
- if (c->x86 == 0xf) {
+ if (c->x86 == 0xf)
c->x86 += (tfms >> 20) & 0xff;
+ if (c->x86 >= 0x6)
c->x86_model += ((tfms >> 16) & 0xF) << 4;
- }
if (c->x86_capability[0] & (1<<19))
c->x86_clflush_size = ((misc >> 8) & 0xff) * 8;
} else {
seq_printf(m, "stepping\t: unknown\n");
if (cpu_has(c,X86_FEATURE_TSC)) {
+ unsigned int freq = cpufreq_quick_get((unsigned)(c-cpu_data));
+ if (!freq)
+ freq = cpu_khz;
seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
- cpu_khz / 1000, (cpu_khz % 1000));
+ freq / 1000, (freq % 1000));
}
/* Cache size */
seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
#ifdef CONFIG_SMP
- if (smp_num_siblings * c->x86_num_cores > 1) {
+ if (smp_num_siblings * c->x86_max_cores > 1) {
int cpu = c - cpu_data;
seq_printf(m, "physical id\t: %d\n", phys_proc_id[cpu]);
- seq_printf(m, "siblings\t: %d\n",
- c->x86_num_cores * smp_num_siblings);
+ seq_printf(m, "siblings\t: %d\n", cpus_weight(cpu_core_map[cpu]));
seq_printf(m, "core id\t\t: %d\n", cpu_core_id[cpu]);
- seq_printf(m, "cpu cores\t: %d\n", c->x86_num_cores);
+ seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
}
#endif
projects / linux-2.6 / blobdiff