Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

[pandora-kernel.git] / arch / s390 / kernel / setup.c

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index f9f8779..2bc70b6 100644 (file)
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -24,7 +24,6 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/user.h>
-#include <linux/a.out.h>
 #include <linux/tty.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
@@ -40,6 +39,7 @@
 #include <linux/pfn.h>
 #include <linux/ctype.h>
 #include <linux/reboot.h>
+#include <linux/topology.h>
 
 #include <asm/ipl.h>
 #include <asm/uaccess.h>
@@ -73,7 +73,7 @@ EXPORT_SYMBOL(uaccess);
 unsigned int console_mode = 0;
 unsigned int console_devno = -1;
 unsigned int console_irq = -1;
-unsigned long machine_flags = 0;
+unsigned long machine_flags;
 unsigned long elf_hwcap = 0;
 char elf_platform[ELF_PLATFORM_SIZE];
 
@@ -316,7 +316,11 @@ static int __init early_parse_ipldelay(char *p)
 early_param("ipldelay", early_parse_ipldelay);
 
 #ifdef CONFIG_S390_SWITCH_AMODE
+#ifdef CONFIG_PGSTE
+unsigned int switch_amode = 1;
+#else
 unsigned int switch_amode = 0;
+#endif
 EXPORT_SYMBOL_GPL(switch_amode);
 
 static void set_amode_and_uaccess(unsigned long user_amode,
@@ -428,7 +432,7 @@ setup_lowcore(void)
        lc->io_new_psw.mask = psw_kernel_bits;
        lc->io_new_psw.addr = PSW_ADDR_AMODE | (unsigned long) io_int_handler;
        lc->ipl_device = S390_lowcore.ipl_device;
-       lc->jiffy_timer = -1LL;
+       lc->clock_comparator = -1ULL;
        lc->kernel_stack = ((unsigned long) &init_thread_union) + THREAD_SIZE;
        lc->async_stack = (unsigned long)
                __alloc_bootmem(ASYNC_SIZE, ASYNC_SIZE, 0) + ASYNC_SIZE;
@@ -679,16 +683,7 @@ setup_memory(void)
 #endif
 }
 
-static __init unsigned int stfl(void)
-{
-       asm volatile(
-               "       .insn   s,0xb2b10000,0(0)\n" /* stfl */
-               "0:\n"
-               EX_TABLE(0b,0b));
-       return S390_lowcore.stfl_fac_list;
-}
-
-static __init int stfle(unsigned long long *list, int doublewords)
+static int __init __stfle(unsigned long long *list, int doublewords)
 {
        typedef struct { unsigned long long _[doublewords]; } addrtype;
        register unsigned long __nr asm("0") = doublewords - 1;
@@ -698,6 +693,13 @@ static __init int stfle(unsigned long long *list, int doublewords)
        return __nr + 1;
 }
 
+int __init stfle(unsigned long long *list, int doublewords)
+{
+       if (!(stfl() & (1UL << 24)))
+               return -EOPNOTSUPP;
+       return __stfle(list, doublewords);
+}
+
 /*
  * Setup hardware capabilities.
  */
@@ -742,11 +744,14 @@ static void __init setup_hwcaps(void)
         *   HWCAP_S390_DFP bit 6.
         */
        if ((elf_hwcap & (1UL << 2)) &&
-           stfle(&facility_list_extended, 1) > 0) {
+           __stfle(&facility_list_extended, 1) > 0) {
                if (facility_list_extended & (1ULL << (64 - 43)))
                        elf_hwcap |= 1UL << 6;
        }
 
+       if (MACHINE_HAS_HPAGE)
+               elf_hwcap |= 1UL << 7;
+
        switch (cpuinfo->cpu_id.machine) {
        case 0x9672:
 #if !defined(CONFIG_64BIT)
@@ -790,9 +795,13 @@ setup_arch(char **cmdline_p)
               "This machine has an IEEE fpu\n" :
               "This machine has no IEEE fpu\n");
 #else /* CONFIG_64BIT */
-       printk((MACHINE_IS_VM) ?
-              "We are running under VM (64 bit mode)\n" :
-              "We are running native (64 bit mode)\n");
+       if (MACHINE_IS_VM)
+               printk("We are running under VM (64 bit mode)\n");
+       else if (MACHINE_IS_KVM) {
+               printk("We are running under KVM (64 bit mode)\n");
+               add_preferred_console("ttyS", 1, NULL);
+       } else
+               printk("We are running native (64 bit mode)\n");
 #endif /* CONFIG_64BIT */
 
        /* Save unparsed command line copy for /proc/cmdline */
@@ -824,6 +833,7 @@ setup_arch(char **cmdline_p)
 
         cpu_init();
         __cpu_logical_map[0] = S390_lowcore.cpu_data.cpu_addr;
+       s390_init_cpu_topology();
 
        /*
         * Setup capabilities (ELF_HWCAP & ELF_PLATFORM).
@@ -865,8 +875,9 @@ void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
 
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
-       static const char *hwcap_str[7] = {
-               "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp"
+       static const char *hwcap_str[8] = {
+               "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp",
+               "edat"
        };
         struct cpuinfo_S390 *cpuinfo;
        unsigned long n = (unsigned long) v - 1;
@@ -881,7 +892,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
                               num_online_cpus(), loops_per_jiffy/(500000/HZ),
                               (loops_per_jiffy/(5000/HZ))%100);
                seq_puts(m, "features\t: ");
-               for (i = 0; i < 7; i++)
+               for (i = 0; i < 8; i++)
                        if (hwcap_str[i] && (elf_hwcap & (1UL << i)))
                                seq_printf(m, "%s ", hwcap_str[i]);
                seq_puts(m, "\n");