x86: remove unused tsk_thread from asm-offsets_64.c
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / x86 / kernel / setup_64.c
index 5a19f0cc5b6766c8c0ea3eed1164ec3605ac7c32..1acb435a0585be0b2da1ffbaae7cd517eb628530 100644 (file)
@@ -58,6 +58,8 @@
 #include <asm/numa.h>
 #include <asm/sections.h>
 #include <asm/dmi.h>
+#include <asm/cacheflush.h>
+#include <asm/mce.h>
 
 /*
  * Machine setup..
@@ -121,18 +123,26 @@ struct resource standard_io_resources[] = {
 
 #define IORESOURCE_RAM (IORESOURCE_BUSY | IORESOURCE_MEM)
 
-struct resource data_resource = {
+static struct resource data_resource = {
        .name = "Kernel data",
        .start = 0,
        .end = 0,
        .flags = IORESOURCE_RAM,
 };
-struct resource code_resource = {
+static struct resource code_resource = {
        .name = "Kernel code",
        .start = 0,
        .end = 0,
        .flags = IORESOURCE_RAM,
 };
+static struct resource bss_resource = {
+       .name = "Kernel bss",
+       .start = 0,
+       .end = 0,
+       .flags = IORESOURCE_RAM,
+};
+
+static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c);
 
 #ifdef CONFIG_PROC_VMCORE
 /* elfcorehdr= specifies the location of elf core header
@@ -191,6 +201,37 @@ static inline void copy_edd(void)
 }
 #endif
 
+#ifdef CONFIG_KEXEC
+static void __init reserve_crashkernel(void)
+{
+       unsigned long long free_mem;
+       unsigned long long crash_size, crash_base;
+       int ret;
+
+       free_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
+
+       ret = parse_crashkernel(boot_command_line, free_mem,
+                       &crash_size, &crash_base);
+       if (ret == 0 && crash_size) {
+               if (crash_base > 0) {
+                       printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
+                                       "for crashkernel (System RAM: %ldMB)\n",
+                                       (unsigned long)(crash_size >> 20),
+                                       (unsigned long)(crash_base >> 20),
+                                       (unsigned long)(free_mem >> 20));
+                       crashk_res.start = crash_base;
+                       crashk_res.end   = crash_base + crash_size - 1;
+                       reserve_bootmem(crash_base, crash_size);
+               } else
+                       printk(KERN_INFO "crashkernel reservation failed - "
+                                       "you have to specify a base address\n");
+       }
+}
+#else
+static inline void __init reserve_crashkernel(void)
+{}
+#endif
+
 #define EBDA_ADDR_POINTER 0x40E
 
 unsigned __initdata ebda_addr;
@@ -245,6 +286,8 @@ void __init setup_arch(char **cmdline_p)
        code_resource.end = virt_to_phys(&_etext)-1;
        data_resource.start = virt_to_phys(&_etext);
        data_resource.end = virt_to_phys(&_edata)-1;
+       bss_resource.start = virt_to_phys(&__bss_start);
+       bss_resource.end = virt_to_phys(&__bss_stop)-1;
 
        early_identify_cpu(&boot_cpu_data);
 
@@ -271,6 +314,13 @@ void __init setup_arch(char **cmdline_p)
 
        dmi_scan_machine();
 
+       io_delay_init();
+
+#ifdef CONFIG_SMP
+       /* setup to use the static apicid table during kernel startup */
+       x86_cpu_to_apicid_ptr = (void *)&x86_cpu_to_apicid_init;
+#endif
+
 #ifdef CONFIG_ACPI
        /*
         * Initialize the ACPI boot-time table parser (gets the RSDP and SDT).
@@ -357,18 +407,10 @@ void __init setup_arch(char **cmdline_p)
                }
        }
 #endif
-#ifdef CONFIG_KEXEC
-       if (crashk_res.start != crashk_res.end) {
-               reserve_bootmem_generic(crashk_res.start,
-                       crashk_res.end - crashk_res.start + 1);
-       }
-#endif
-
+       reserve_crashkernel();
        paging_init();
 
-#ifdef CONFIG_PCI
        early_quirks();
-#endif
 
        /*
         * set this early, so we dont allocate cpu0
@@ -391,11 +433,12 @@ void __init setup_arch(char **cmdline_p)
        if (smp_found_config)
                get_smp_config();
        init_apic_mappings();
+       ioapic_init_mappings();
 
        /*
         * We trust e820 completely. No explicit ROM probing in memory.
         */
-       e820_reserve_resources(); 
+       e820_reserve_resources(&code_resource, &data_resource, &bss_resource);
        e820_mark_nosave_regions();
 
        {
@@ -529,7 +572,7 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
                   but in the same order as the HT nodeids.
                   If that doesn't result in a usable node fall back to the
                   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 &&
                    apicid_to_node[ht_nodeid] != NUMA_NO_NODE)
                        node = apicid_to_node[ht_nodeid];
@@ -805,7 +848,7 @@ struct cpu_model_info {
 /* Do some early cpuid on the boot CPU to get some parameter that are
    needed before check_bugs. Everything advanced is in identify_cpu
    below. */
-void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
+static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c)
 {
        u32 tfms;
 
@@ -959,6 +1002,7 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
        struct cpuinfo_x86 *c = v;
+       int cpu = 0;
 
        /* 
         * These flag bits must match the definitions in <asm/cpufeature.h>.
@@ -999,7 +1043,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                /* Intel-defined (#2) */
                "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est",
                "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL,
-               NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt",
+               NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt",
                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
                /* VIA/Cyrix/Centaur-defined */
@@ -1009,10 +1053,10 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
                /* AMD-defined (#2) */
-               "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8_legacy",
-               "altmovcr8", "abm", "sse4a",
-               "misalignsse", "3dnowprefetch",
-               "osvw", "ibs", NULL, NULL, NULL, NULL,
+               "lahf_lm", "cmp_legacy", "svm", "extapic",
+               "cr8_legacy", "abm", "sse4a", "misalignsse",
+               "3dnowprefetch", "osvw", "ibs", "sse5",
+               "skinit", "wdt", NULL, NULL,
                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
                NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 
@@ -1037,8 +1081,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
 
 #ifdef CONFIG_SMP
-       if (!cpu_online(c-cpu_data))
-               return 0;
+       cpu = c->cpu_index;
 #endif
 
        seq_printf(m,"processor\t: %u\n"
@@ -1046,7 +1089,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                     "cpu family\t: %d\n"
                     "model\t\t: %d\n"
                     "model name\t: %s\n",
-                    (unsigned)(c-cpu_data),
+                    (unsigned)cpu,
                     c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown",
                     c->x86,
                     (int)c->x86_model,
@@ -1058,7 +1101,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                seq_printf(m, "stepping\t: unknown\n");
        
        if (cpu_has(c,X86_FEATURE_TSC)) {
-               unsigned int freq = cpufreq_quick_get((unsigned)(c-cpu_data));
+               unsigned int freq = cpufreq_quick_get((unsigned)cpu);
                if (!freq)
                        freq = cpu_khz;
                seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
@@ -1071,7 +1114,6 @@ static int show_cpuinfo(struct seq_file *m, void *v)
        
 #ifdef CONFIG_SMP
        if (smp_num_siblings * c->x86_max_cores > 1) {
-               int cpu = c - cpu_data;
                seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
                seq_printf(m, "siblings\t: %d\n",
                               cpus_weight(per_cpu(cpu_core_map, cpu)));
@@ -1129,12 +1171,16 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
 static void *c_start(struct seq_file *m, loff_t *pos)
 {
-       return *pos < NR_CPUS ? cpu_data + *pos : NULL;
+       if (*pos == 0)  /* just in case, cpu 0 is not the first */
+               *pos = first_cpu(cpu_online_map);
+       if ((*pos) < NR_CPUS && cpu_online(*pos))
+               return &cpu_data(*pos);
+       return NULL;
 }
 
 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 {
-       ++*pos;
+       *pos = next_cpu(*pos, cpu_online_map);
        return c_start(m, pos);
 }