* 06/24/99 W.Drummond added boot_cpu_data.
* 05/28/05 Z. Menyhart Dynamic stride size for "flush_icache_range()"
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <linux/threads.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
+#include <linux/dmi.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/efi.h>
#include <linux/initrd.h>
-#include <linux/platform.h>
#include <linux/pm.h>
#include <linux/cpufreq.h>
+#include <linux/kexec.h>
+#include <linux/crash_dump.h>
#include <asm/ia32.h>
#include <asm/machvec.h>
#include <asm/mca.h>
#include <asm/meminit.h>
#include <asm/page.h>
+#include <asm/paravirt.h>
+#include <asm/paravirt_patch.h>
#include <asm/patch.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/sal.h>
#include <asm/sections.h>
-#include <asm/serial.h>
#include <asm/setup.h>
#include <asm/smp.h>
#include <asm/system.h>
+#include <asm/tlbflush.h>
#include <asm/unistd.h>
+#include <asm/hpsim.h>
#if defined(CONFIG_SMP) && (IA64_CPU_SIZE > PAGE_SIZE)
# error "struct cpuinfo_ia64 too big!"
EXPORT_SYMBOL(__per_cpu_offset);
#endif
-DEFINE_PER_CPU(struct cpuinfo_ia64, cpu_info);
+DEFINE_PER_CPU(struct cpuinfo_ia64, ia64_cpu_info);
DEFINE_PER_CPU(unsigned long, local_per_cpu_offset);
-DEFINE_PER_CPU(unsigned long, ia64_phys_stacked_size_p8);
unsigned long ia64_cycles_per_usec;
struct ia64_boot_param *ia64_boot_param;
struct screen_info screen_info;
.name = "Kernel code",
.flags = IORESOURCE_BUSY | IORESOURCE_MEM
};
-extern void efi_initialize_iomem_resources(struct resource *,
- struct resource *);
-extern char _text[], _end[], _etext[];
+
+static struct resource bss_resource = {
+ .name = "Kernel bss",
+ .flags = IORESOURCE_BUSY | IORESOURCE_MEM
+};
unsigned long ia64_max_cacheline_size;
*/
#define I_CACHE_STRIDE_SHIFT 5 /* Safest way to go: 32 bytes by 32 bytes */
unsigned long ia64_i_cache_stride_shift = ~0;
+/*
+ * "clflush_cache_range()" needs to know what processor dependent stride size to
+ * use when it flushes cache lines including both d-cache and i-cache.
+ */
+/* Safest way to go: 32 bytes by 32 bytes */
+#define CACHE_STRIDE_SHIFT 5
+unsigned long ia64_cache_stride_shift = ~0;
/*
* The merge_mask variable needs to be set to (max(iommu_page_size(iommu)) - 1). This
/*
* We use a special marker for the end of memory and it uses the extra (+1) slot
*/
-struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1];
-int num_rsvd_regions;
+struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1] __initdata;
+int num_rsvd_regions __initdata;
/*
* caller-specified function is called with the memory ranges that remain after filtering.
* This routine does not assume the incoming segments are sorted.
*/
-int
-filter_rsvd_memory (unsigned long start, unsigned long end, void *arg)
+int __init
+filter_rsvd_memory (u64 start, u64 end, void *arg)
{
- unsigned long range_start, range_end, prev_start;
+ u64 range_start, range_end, prev_start;
void (*func)(unsigned long, unsigned long, int);
int i;
return 0;
}
-static void
+/*
+ * Similar to "filter_rsvd_memory()", but the reserved memory ranges
+ * are not filtered out.
+ */
+int __init
+filter_memory(u64 start, u64 end, void *arg)
+{
+ void (*func)(unsigned long, unsigned long, int);
+
+#if IGNORE_PFN0
+ if (start == PAGE_OFFSET) {
+ printk(KERN_WARNING "warning: skipping physical page 0\n");
+ start += PAGE_SIZE;
+ if (start >= end)
+ return 0;
+ }
+#endif
+ func = arg;
+ if (start < end)
+ call_pernode_memory(__pa(start), end - start, func);
+ return 0;
+}
+
+static void __init
sort_regions (struct rsvd_region *rsvd_region, int max)
{
int j;
code_resource.start = ia64_tpa(_text);
code_resource.end = ia64_tpa(_etext) - 1;
data_resource.start = ia64_tpa(_etext);
- data_resource.end = ia64_tpa(_end) - 1;
- efi_initialize_iomem_resources(&code_resource, &data_resource);
+ data_resource.end = ia64_tpa(_edata) - 1;
+ bss_resource.start = ia64_tpa(__bss_start);
+ bss_resource.end = ia64_tpa(_end) - 1;
+ efi_initialize_iomem_resources(&code_resource, &data_resource,
+ &bss_resource);
return 0;
}
__initcall(register_memory);
+
+#ifdef CONFIG_KEXEC
+
+/*
+ * This function checks if the reserved crashkernel is allowed on the specific
+ * IA64 machine flavour. Machines without an IO TLB use swiotlb and require
+ * some memory below 4 GB (i.e. in 32 bit area), see the implementation of
+ * lib/swiotlb.c. The hpzx1 architecture has an IO TLB but cannot use that
+ * in kdump case. See the comment in sba_init() in sba_iommu.c.
+ *
+ * So, the only machvec that really supports loading the kdump kernel
+ * over 4 GB is "sn2".
+ */
+static int __init check_crashkernel_memory(unsigned long pbase, size_t size)
+{
+ if (ia64_platform_is("sn2") || ia64_platform_is("uv"))
+ return 1;
+ else
+ return pbase < (1UL << 32);
+}
+
+static void __init setup_crashkernel(unsigned long total, int *n)
+{
+ unsigned long long base = 0, size = 0;
+ int ret;
+
+ ret = parse_crashkernel(boot_command_line, total,
+ &size, &base);
+ if (ret == 0 && size > 0) {
+ if (!base) {
+ sort_regions(rsvd_region, *n);
+ base = kdump_find_rsvd_region(size,
+ rsvd_region, *n);
+ }
+
+ if (!check_crashkernel_memory(base, size)) {
+ pr_warning("crashkernel: There would be kdump memory "
+ "at %ld GB but this is unusable because it "
+ "must\nbe below 4 GB. Change the memory "
+ "configuration of the machine.\n",
+ (unsigned long)(base >> 30));
+ return;
+ }
+
+ if (base != ~0UL) {
+ printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
+ "for crashkernel (System RAM: %ldMB)\n",
+ (unsigned long)(size >> 20),
+ (unsigned long)(base >> 20),
+ (unsigned long)(total >> 20));
+ rsvd_region[*n].start =
+ (unsigned long)__va(base);
+ rsvd_region[*n].end =
+ (unsigned long)__va(base + size);
+ (*n)++;
+ crashk_res.start = base;
+ crashk_res.end = base + size - 1;
+ }
+ }
+ efi_memmap_res.start = ia64_boot_param->efi_memmap;
+ efi_memmap_res.end = efi_memmap_res.start +
+ ia64_boot_param->efi_memmap_size;
+ boot_param_res.start = __pa(ia64_boot_param);
+ boot_param_res.end = boot_param_res.start +
+ sizeof(*ia64_boot_param);
+}
+#else
+static inline void __init setup_crashkernel(unsigned long total, int *n)
+{}
+#endif
+
/**
* reserve_memory - setup reserved memory areas
*
* Setup the reserved memory areas set aside for the boot parameters,
* initrd, etc. There are currently %IA64_MAX_RSVD_REGIONS defined,
- * see include/asm-ia64/meminit.h if you need to define more.
+ * see arch/ia64/include/asm/meminit.h if you need to define more.
*/
-void
+void __init
reserve_memory (void)
{
int n = 0;
+ unsigned long total_memory;
/*
* none of the entries in this table overlap
rsvd_region[n].end = (unsigned long) ia64_imva(_end);
n++;
+ n += paravirt_reserve_memory(&rsvd_region[n]);
+
#ifdef CONFIG_BLK_DEV_INITRD
if (ia64_boot_param->initrd_start) {
rsvd_region[n].start = (unsigned long)__va(ia64_boot_param->initrd_start);
}
#endif
- efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
+#ifdef CONFIG_CRASH_DUMP
+ if (reserve_elfcorehdr(&rsvd_region[n].start,
+ &rsvd_region[n].end) == 0)
+ n++;
+#endif
+
+ total_memory = efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);
n++;
+ setup_crashkernel(total_memory, &n);
+
/* end of memory marker */
rsvd_region[n].start = ~0UL;
rsvd_region[n].end = ~0UL;
n++;
num_rsvd_regions = n;
+ BUG_ON(IA64_MAX_RSVD_REGIONS + 1 < n);
sort_regions(rsvd_region, num_rsvd_regions);
}
+
/**
* find_initrd - get initrd parameters from the boot parameter structure
*
* Grab the initrd start and end from the boot parameter struct given us by
* the boot loader.
*/
-void
+void __init
find_initrd (void)
{
#ifdef CONFIG_BLK_DEV_INITRD
initrd_start = (unsigned long)__va(ia64_boot_param->initrd_start);
initrd_end = initrd_start+ia64_boot_param->initrd_size;
- printk(KERN_INFO "Initial ramdisk at: 0x%lx (%lu bytes)\n",
+ printk(KERN_INFO "Initial ramdisk at: 0x%lx (%llu bytes)\n",
initrd_start, ia64_boot_param->initrd_size);
}
#endif
if (!efi_setup_pcdp_console(cmdline))
earlycons++;
#endif
-#ifdef CONFIG_SERIAL_8250_CONSOLE
- if (!early_serial_console_init(cmdline))
+ if (!simcons_register())
earlycons++;
-#endif
return (earlycons) ? 0 : -1;
}
#endif
}
-#ifdef CONFIG_SMP
-static void
-check_for_logical_procs (void)
+static __initdata int nomca;
+static __init int setup_nomca(char *s)
{
- pal_logical_to_physical_t info;
- s64 status;
-
- status = ia64_pal_logical_to_phys(0, &info);
- if (status == -1) {
- printk(KERN_INFO "No logical to physical processor mapping "
- "available\n");
- return;
- }
- if (status) {
- printk(KERN_ERR "ia64_pal_logical_to_phys failed with %ld\n",
- status);
- return;
- }
- /*
- * Total number of siblings that BSP has. Though not all of them
- * may have booted successfully. The correct number of siblings
- * booted is in info.overview_num_log.
+ nomca = 1;
+ return 0;
+}
+early_param("nomca", setup_nomca);
+
+/*
+ * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by
+ * is_kdump_kernel() to determine if we are booting after a panic. Hence
+ * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE.
+ */
+#ifdef CONFIG_CRASH_DUMP
+/* elfcorehdr= specifies the location of elf core header
+ * stored by the crashed kernel.
+ */
+static int __init parse_elfcorehdr(char *arg)
+{
+ if (!arg)
+ return -EINVAL;
+
+ elfcorehdr_addr = memparse(arg, &arg);
+ return 0;
+}
+early_param("elfcorehdr", parse_elfcorehdr);
+
+int __init reserve_elfcorehdr(u64 *start, u64 *end)
+{
+ u64 length;
+
+ /* We get the address using the kernel command line,
+ * but the size is extracted from the EFI tables.
+ * Both address and size are required for reservation
+ * to work properly.
*/
- smp_num_siblings = info.overview_tpc;
- smp_num_cpucores = info.overview_cpp;
+
+ if (!is_vmcore_usable())
+ return -EINVAL;
+
+ if ((length = vmcore_find_descriptor_size(elfcorehdr_addr)) == 0) {
+ vmcore_unusable();
+ return -EINVAL;
+ }
+
+ *start = (unsigned long)__va(elfcorehdr_addr);
+ *end = *start + length;
+ return 0;
}
-#endif
+
+#endif /* CONFIG_PROC_VMCORE */
void __init
setup_arch (char **cmdline_p)
{
unw_init();
+ paravirt_arch_setup_early();
+
ia64_patch_vtop((u64) __start___vtop_patchlist, (u64) __end___vtop_patchlist);
+ paravirt_patch_apply();
*cmdline_p = __va(ia64_boot_param->command_line);
- strlcpy(saved_command_line, *cmdline_p, COMMAND_LINE_SIZE);
+ strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);
efi_init();
io_port_init();
#ifdef CONFIG_IA64_GENERIC
- {
- const char *mvec_name = strstr (*cmdline_p, "machvec=");
- char str[64];
-
- if (mvec_name) {
- const char *end;
- size_t len;
-
- mvec_name += 8;
- end = strchr (mvec_name, ' ');
- if (end)
- len = end - mvec_name;
- else
- len = strlen (mvec_name);
- len = min(len, sizeof (str) - 1);
- strncpy (str, mvec_name, len);
- str[len] = '\0';
- mvec_name = str;
- } else
- mvec_name = acpi_get_sysname();
- machvec_init(mvec_name);
- }
+ /* machvec needs to be parsed from the command line
+ * before parse_early_param() is called to ensure
+ * that ia64_mv is initialised before any command line
+ * settings may cause console setup to occur
+ */
+ machvec_init_from_cmdline(*cmdline_p);
#endif
+ parse_early_param();
+
if (early_console_setup(*cmdline_p) == 0)
mark_bsp_online();
#ifdef CONFIG_ACPI
/* Initialize the ACPI boot-time table parser */
acpi_table_init();
+ early_acpi_boot_init();
# ifdef CONFIG_ACPI_NUMA
acpi_numa_init();
-# endif
-#else
-# ifdef CONFIG_SMP
- smp_build_cpu_map(); /* happens, e.g., with the Ski simulator */
+# ifdef CONFIG_ACPI_HOTPLUG_CPU
+ prefill_possible_map();
+# endif
+ per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ?
+ 32 : cpus_weight(early_cpu_possible_map)),
+ additional_cpus > 0 ? additional_cpus : 0);
# endif
#endif /* CONFIG_APCI_BOOT */
+#ifdef CONFIG_SMP
+ smp_build_cpu_map();
+#endif
find_memory();
/* process SAL system table: */
- ia64_sal_init(efi.sal_systab);
+ ia64_sal_init(__va(efi.sal_systab));
+
+#ifdef CONFIG_ITANIUM
+ ia64_patch_rse((u64) __start___rse_patchlist, (u64) __end___rse_patchlist);
+#else
+ {
+ unsigned long num_phys_stacked;
+
+ if (ia64_pal_rse_info(&num_phys_stacked, 0) == 0 && num_phys_stacked > 96)
+ ia64_patch_rse((u64) __start___rse_patchlist, (u64) __end___rse_patchlist);
+ }
+#endif
#ifdef CONFIG_SMP
cpu_physical_id(0) = hard_smp_processor_id();
-
- cpu_set(0, cpu_sibling_map[0]);
- cpu_set(0, cpu_core_map[0]);
-
- check_for_logical_procs();
- if (smp_num_cpucores > 1)
- printk(KERN_INFO
- "cpu package is Multi-Core capable: number of cores=%d\n",
- smp_num_cpucores);
- if (smp_num_siblings > 1)
- printk(KERN_INFO
- "cpu package is Multi-Threading capable: number of siblings=%d\n",
- smp_num_siblings);
#endif
cpu_init(); /* initialize the bootstrap CPU */
acpi_boot_init();
#endif
+ paravirt_banner();
+ paravirt_arch_setup_console(cmdline_p);
+
#ifdef CONFIG_VT
if (!conswitchp) {
# if defined(CONFIG_DUMMY_CONSOLE)
#endif
/* enable IA-64 Machine Check Abort Handling unless disabled */
- if (!strstr(saved_command_line, "nomca"))
+ if (paravirt_arch_setup_nomca())
+ nomca = 1;
+ if (!nomca)
ia64_mca_init();
platform_setup(cmdline_p);
+#ifndef CONFIG_IA64_HP_SIM
+ check_sal_cache_flush();
+#endif
paging_init();
}
/*
- * Display cpu info for all cpu's.
+ * Display cpu info for all CPUs.
*/
static int
show_cpuinfo (struct seq_file *m, void *v)
{ 1UL << 1, "spontaneous deferral"},
{ 1UL << 2, "16-byte atomic ops" }
};
- char family[32], features[128], *cp, sep;
+ char features[128], *cp, *sep;
struct cpuinfo_ia64 *c = v;
unsigned long mask;
- unsigned int proc_freq;
- int i;
+ unsigned long proc_freq;
+ int i, size;
mask = c->features;
- switch (c->family) {
- case 0x07: memcpy(family, "Itanium", 8); break;
- case 0x1f: memcpy(family, "Itanium 2", 10); break;
- default: sprintf(family, "%u", c->family); break;
- }
-
/* build the feature string: */
- memcpy(features, " standard", 10);
+ memcpy(features, "standard", 9);
cp = features;
- sep = 0;
- for (i = 0; i < (int) ARRAY_SIZE(feature_bits); ++i) {
+ size = sizeof(features);
+ sep = "";
+ for (i = 0; i < ARRAY_SIZE(feature_bits) && size > 1; ++i) {
if (mask & feature_bits[i].mask) {
- if (sep)
- *cp++ = sep;
- sep = ',';
- *cp++ = ' ';
- strcpy(cp, feature_bits[i].feature_name);
- cp += strlen(feature_bits[i].feature_name);
+ cp += snprintf(cp, size, "%s%s", sep,
+ feature_bits[i].feature_name),
+ sep = ", ";
mask &= ~feature_bits[i].mask;
+ size = sizeof(features) - (cp - features);
}
}
- if (mask) {
- /* print unknown features as a hex value: */
- if (sep)
- *cp++ = sep;
- sprintf(cp, " 0x%lx", mask);
+ if (mask && size > 1) {
+ /* print unknown features as a hex value */
+ snprintf(cp, size, "%s0x%lx", sep, mask);
}
proc_freq = cpufreq_quick_get(cpunum);
"processor : %d\n"
"vendor : %s\n"
"arch : IA-64\n"
- "family : %s\n"
+ "family : %u\n"
"model : %u\n"
+ "model name : %s\n"
"revision : %u\n"
"archrev : %u\n"
- "features :%s\n" /* don't change this---it _is_ right! */
+ "features : %s\n"
"cpu number : %lu\n"
"cpu regs : %u\n"
- "cpu MHz : %lu.%06lu\n"
+ "cpu MHz : %lu.%03lu\n"
"itc MHz : %lu.%06lu\n"
"BogoMIPS : %lu.%02lu\n",
- cpunum, c->vendor, family, c->model, c->revision, c->archrev,
+ cpunum, c->vendor, c->family, c->model,
+ c->model_name, c->revision, c->archrev,
features, c->ppn, c->number,
proc_freq / 1000, proc_freq % 1000,
c->itc_freq / 1000000, c->itc_freq % 1000000,
lpj*HZ/500000, (lpj*HZ/5000) % 100);
#ifdef CONFIG_SMP
seq_printf(m, "siblings : %u\n", cpus_weight(cpu_core_map[cpunum]));
+ if (c->socket_id != -1)
+ seq_printf(m, "physical id: %u\n", c->socket_id);
if (c->threads_per_core > 1 || c->cores_per_socket > 1)
seq_printf(m,
- "physical id: %u\n"
- "core id : %u\n"
- "thread id : %u\n",
- c->socket_id, c->core_id, c->thread_id);
+ "core id : %u\n"
+ "thread id : %u\n",
+ c->core_id, c->thread_id);
#endif
seq_printf(m,"\n");
c_start (struct seq_file *m, loff_t *pos)
{
#ifdef CONFIG_SMP
- while (*pos < NR_CPUS && !cpu_isset(*pos, cpu_online_map))
+ while (*pos < nr_cpu_ids && !cpu_online(*pos))
++*pos;
#endif
- return *pos < NR_CPUS ? cpu_data(*pos) : NULL;
+ return *pos < nr_cpu_ids ? cpu_data(*pos) : NULL;
}
static void *
{
}
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
.show = show_cpuinfo
};
-void
+#define MAX_BRANDS 8
+static char brandname[MAX_BRANDS][128];
+
+static char * __cpuinit
+get_model_name(__u8 family, __u8 model)
+{
+ static int overflow;
+ char brand[128];
+ int i;
+
+ memcpy(brand, "Unknown", 8);
+ if (ia64_pal_get_brand_info(brand)) {
+ if (family == 0x7)
+ memcpy(brand, "Merced", 7);
+ else if (family == 0x1f) switch (model) {
+ case 0: memcpy(brand, "McKinley", 9); break;
+ case 1: memcpy(brand, "Madison", 8); break;
+ case 2: memcpy(brand, "Madison up to 9M cache", 23); break;
+ }
+ }
+ for (i = 0; i < MAX_BRANDS; i++)
+ if (strcmp(brandname[i], brand) == 0)
+ return brandname[i];
+ for (i = 0; i < MAX_BRANDS; i++)
+ if (brandname[i][0] == '\0')
+ return strcpy(brandname[i], brand);
+ if (overflow++ == 0)
+ printk(KERN_ERR
+ "%s: Table overflow. Some processor model information will be missing\n",
+ __func__);
+ return "Unknown";
+}
+
+static void __cpuinit
identify_cpu (struct cpuinfo_ia64 *c)
{
union {
pal_status_t status;
unsigned long impl_va_msb = 50, phys_addr_size = 44; /* Itanium defaults */
int i;
-
for (i = 0; i < 5; ++i)
cpuid.bits[i] = ia64_get_cpuid(i);
c->cpu = smp_processor_id();
/* below default values will be overwritten by identify_siblings()
- * for Multi-Threading/Multi-Core capable cpu's
+ * for Multi-Threading/Multi-Core capable CPUs
*/
c->threads_per_core = c->cores_per_socket = c->num_log = 1;
c->socket_id = -1;
identify_siblings(c);
+
+ if (c->threads_per_core > smp_num_siblings)
+ smp_num_siblings = c->threads_per_core;
#endif
c->ppn = cpuid.field.ppn;
c->number = cpuid.field.number;
c->family = cpuid.field.family;
c->archrev = cpuid.field.archrev;
c->features = cpuid.field.features;
+ c->model_name = get_model_name(c->family, c->model);
status = ia64_pal_vm_summary(&vm1, &vm2);
if (status == PAL_STATUS_SUCCESS) {
c->unimpl_pa_mask = ~((1L<<63) | ((1L << phys_addr_size) - 1));
}
-void
-setup_per_cpu_areas (void)
-{
- /* start_kernel() requires this... */
-}
-
/*
- * Calculate the max. cache line size.
+ * Do the following calculations:
*
- * In addition, the minimum of the i-cache stride sizes is calculated for
- * "flush_icache_range()".
+ * 1. the max. cache line size.
+ * 2. the minimum of the i-cache stride sizes for "flush_icache_range()".
+ * 3. the minimum of the cache stride sizes for "clflush_cache_range()".
*/
-static void
-get_max_cacheline_size (void)
+static void __cpuinit
+get_cache_info(void)
{
unsigned long line_size, max = 1;
- u64 l, levels, unique_caches;
- pal_cache_config_info_t cci;
- s64 status;
+ unsigned long l, levels, unique_caches;
+ pal_cache_config_info_t cci;
+ long status;
status = ia64_pal_cache_summary(&levels, &unique_caches);
if (status != 0) {
printk(KERN_ERR "%s: ia64_pal_cache_summary() failed (status=%ld)\n",
- __FUNCTION__, status);
+ __func__, status);
max = SMP_CACHE_BYTES;
/* Safest setup for "flush_icache_range()" */
ia64_i_cache_stride_shift = I_CACHE_STRIDE_SHIFT;
+ /* Safest setup for "clflush_cache_range()" */
+ ia64_cache_stride_shift = CACHE_STRIDE_SHIFT;
goto out;
}
for (l = 0; l < levels; ++l) {
- status = ia64_pal_cache_config_info(l, /* cache_type (data_or_unified)= */ 2,
- &cci);
+ /* cache_type (data_or_unified)=2 */
+ status = ia64_pal_cache_config_info(l, 2, &cci);
if (status != 0) {
- printk(KERN_ERR
- "%s: ia64_pal_cache_config_info(l=%lu, 2) failed (status=%ld)\n",
- __FUNCTION__, l, status);
+ printk(KERN_ERR "%s: ia64_pal_cache_config_info"
+ "(l=%lu, 2) failed (status=%ld)\n",
+ __func__, l, status);
max = SMP_CACHE_BYTES;
/* The safest setup for "flush_icache_range()" */
cci.pcci_stride = I_CACHE_STRIDE_SHIFT;
+ /* The safest setup for "clflush_cache_range()" */
+ ia64_cache_stride_shift = CACHE_STRIDE_SHIFT;
cci.pcci_unified = 1;
+ } else {
+ if (cci.pcci_stride < ia64_cache_stride_shift)
+ ia64_cache_stride_shift = cci.pcci_stride;
+
+ line_size = 1 << cci.pcci_line_size;
+ if (line_size > max)
+ max = line_size;
}
- line_size = 1 << cci.pcci_line_size;
- if (line_size > max)
- max = line_size;
+
if (!cci.pcci_unified) {
- status = ia64_pal_cache_config_info(l,
- /* cache_type (instruction)= */ 1,
- &cci);
+ /* cache_type (instruction)=1*/
+ status = ia64_pal_cache_config_info(l, 1, &cci);
if (status != 0) {
- printk(KERN_ERR
- "%s: ia64_pal_cache_config_info(l=%lu, 1) failed (status=%ld)\n",
- __FUNCTION__, l, status);
- /* The safest setup for "flush_icache_range()" */
+ printk(KERN_ERR "%s: ia64_pal_cache_config_info"
+ "(l=%lu, 1) failed (status=%ld)\n",
+ __func__, l, status);
+ /* The safest setup for flush_icache_range() */
cci.pcci_stride = I_CACHE_STRIDE_SHIFT;
}
}
* cpu_init() initializes state that is per-CPU. This function acts
* as a 'CPU state barrier', nothing should get across.
*/
-void
+void __cpuinit
cpu_init (void)
{
- extern void __devinit ia64_mmu_init (void *);
+ extern void __cpuinit ia64_mmu_init (void *);
+ static unsigned long max_num_phys_stacked = IA64_NUM_PHYS_STACK_REG;
unsigned long num_phys_stacked;
pal_vm_info_2_u_t vmi;
unsigned int max_ctx;
void *cpu_data;
cpu_data = per_cpu_init();
-
+#ifdef CONFIG_SMP
/*
- * We set ar.k3 so that assembly code in MCA handler can compute
- * physical addresses of per cpu variables with a simple:
- * phys = ar.k3 + &per_cpu_var
+ * insert boot cpu into sibling and core mapes
+ * (must be done after per_cpu area is setup)
*/
- ia64_set_kr(IA64_KR_PER_CPU_DATA,
- ia64_tpa(cpu_data) - (long) __per_cpu_start);
+ if (smp_processor_id() == 0) {
+ cpu_set(0, per_cpu(cpu_sibling_map, 0));
+ cpu_set(0, cpu_core_map[0]);
+ } else {
+ /*
+ * Set ar.k3 so that assembly code in MCA handler can compute
+ * physical addresses of per cpu variables with a simple:
+ * phys = ar.k3 + &per_cpu_var
+ * and the alt-dtlb-miss handler can set per-cpu mapping into
+ * the TLB when needed. head.S already did this for cpu0.
+ */
+ ia64_set_kr(IA64_KR_PER_CPU_DATA,
+ ia64_tpa(cpu_data) - (long) __per_cpu_start);
+ }
+#endif
- get_max_cacheline_size();
+ get_cache_info();
/*
* We can't pass "local_cpu_data" to identify_cpu() because we haven't called
* depends on the data returned by identify_cpu(). We break the dependency by
* accessing cpu_data() through the canonical per-CPU address.
*/
- cpu_info = cpu_data + ((char *) &__ia64_per_cpu_var(cpu_info) - __per_cpu_start);
+ cpu_info = cpu_data + ((char *) &__ia64_per_cpu_var(ia64_cpu_info) - __per_cpu_start);
identify_cpu(cpu_info);
#ifdef CONFIG_MCKINLEY
#endif
/* Clear the stack memory reserved for pt_regs: */
- memset(ia64_task_regs(current), 0, sizeof(struct pt_regs));
+ memset(task_pt_regs(current), 0, sizeof(struct pt_regs));
ia64_set_kr(IA64_KR_FPU_OWNER, 0);
| IA64_DCR_DA | IA64_DCR_DD | IA64_DCR_LC));
atomic_inc(&init_mm.mm_count);
current->active_mm = &init_mm;
- if (current->mm)
- BUG();
+ BUG_ON(current->mm);
ia64_mmu_init(ia64_imva(cpu_data));
ia64_mca_cpu_init(ia64_imva(cpu_data));
ia32_cpu_init();
#endif
- /* Clear ITC to eliminiate sched_clock() overflows in human time. */
+ /* Clear ITC to eliminate sched_clock() overflows in human time. */
ia64_set_itc(0);
/* disable all local interrupt sources: */
/* clear TPR & XTP to enable all interrupt classes: */
ia64_setreg(_IA64_REG_CR_TPR, 0);
+
+ /* Clear any pending interrupts left by SAL/EFI */
+ while (ia64_get_ivr() != IA64_SPURIOUS_INT_VECTOR)
+ ia64_eoi();
+
#ifdef CONFIG_SMP
normal_xtp();
#endif
/* set ia64_ctx.max_rid to the maximum RID that is supported by all CPUs: */
- if (ia64_pal_vm_summary(NULL, &vmi) == 0)
+ if (ia64_pal_vm_summary(NULL, &vmi) == 0) {
max_ctx = (1U << (vmi.pal_vm_info_2_s.rid_size - 3)) - 1;
- else {
+ setup_ptcg_sem(vmi.pal_vm_info_2_s.max_purges, NPTCG_FROM_PAL);
+ } else {
printk(KERN_WARNING "cpu_init: PAL VM summary failed, assuming 18 RID bits\n");
max_ctx = (1U << 15) - 1; /* use architected minimum */
}
num_phys_stacked = 96;
}
/* size of physical stacked register partition plus 8 bytes: */
- __get_cpu_var(ia64_phys_stacked_size_p8) = num_phys_stacked*8 + 8;
+ if (num_phys_stacked > max_num_phys_stacked) {
+ ia64_patch_phys_stack_reg(num_phys_stacked*8 + 8);
+ max_num_phys_stacked = num_phys_stacked;
+ }
platform_cpu_init();
pm_idle = default_idle;
}
-void
+void __init
check_bugs (void)
{
ia64_patch_mckinley_e9((unsigned long) __start___mckinley_e9_bundles,
(unsigned long) __end___mckinley_e9_bundles);
}
+
+static int __init run_dmi_scan(void)
+{
+ dmi_scan_machine();
+ return 0;
+}
+core_initcall(run_dmi_scan);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff