1 files changed, 54 insertions, 131 deletions

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 400b040df7fa..b7a1efd5522c 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -14,6 +14,9 @@
  * This file handles the architecture-dependent parts of initialization
  */
 
+#define KMSG_COMPONENT "setup"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/sched.h>
@@ -32,7 +35,6 @@
 #include <linux/bootmem.h>
 #include <linux/root_dev.h>
 #include <linux/console.h>
-#include <linux/seq_file.h>
 #include <linux/kernel_stat.h>
 #include <linux/device.h>
 #include <linux/notifier.h>
@@ -291,8 +293,8 @@ unsigned int switch_amode = 0;
 #endif
 EXPORT_SYMBOL_GPL(switch_amode);
 
-static void set_amode_and_uaccess(unsigned long user_amode,
-                                  unsigned long user32_amode)
+static int set_amode_and_uaccess(unsigned long user_amode,
+                                 unsigned long user32_amode)
 {
         psw_user_bits = PSW_BASE_BITS | PSW_MASK_DAT | user_amode |
                         PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK |
@@ -309,11 +311,11 @@ static void set_amode_and_uaccess(unsigned long user_amode,
                           PSW_MASK_MCHECK | PSW_DEFAULT_KEY;
 
         if (MACHINE_HAS_MVCOS) {
-                printk("mvcos available.\n");
                 memcpy(&uaccess, &uaccess_mvcos_switch, sizeof(uaccess));
+                return 1;
         } else {
-                printk("mvcos not available.\n");
                 memcpy(&uaccess, &uaccess_pt, sizeof(uaccess));
+                return 0;
         }
 }
 
@@ -328,9 +330,10 @@ static int __init early_parse_switch_amode(char *p)
 early_param("switch_amode", early_parse_switch_amode);
 
 #else /* CONFIG_S390_SWITCH_AMODE */
-static inline void set_amode_and_uaccess(unsigned long user_amode,
-                                         unsigned long user32_amode)
+static inline int set_amode_and_uaccess(unsigned long user_amode,
+                                        unsigned long user32_amode)
 {
+        return 0;
 }
 #endif /* CONFIG_S390_SWITCH_AMODE */
 
@@ -355,11 +358,20 @@ early_param("noexec", early_parse_noexec);
 static void setup_addressing_mode(void)
 {
         if (s390_noexec) {
-                printk("S390 execute protection active, ");
-                set_amode_and_uaccess(PSW_ASC_SECONDARY, PSW32_ASC_SECONDARY);
+                if (set_amode_and_uaccess(PSW_ASC_SECONDARY,
+                                          PSW32_ASC_SECONDARY))
+                        pr_info("Execute protection active, "
+                                "mvcos available\n");
+                else
+                        pr_info("Execute protection active, "
+                                "mvcos not available\n");
         } else if (switch_amode) {
-                printk("S390 address spaces switched, ");
-                set_amode_and_uaccess(PSW_ASC_PRIMARY, PSW32_ASC_PRIMARY);
+                if (set_amode_and_uaccess(PSW_ASC_PRIMARY, PSW32_ASC_PRIMARY))
+                        pr_info("Address spaces switched, "
+                                "mvcos available\n");
+                else
+                        pr_info("Address spaces switched, "
+                                "mvcos not available\n");
         }
 #ifdef CONFIG_TRACE_IRQFLAGS
         sysc_restore_trace_psw.mask = psw_kernel_bits & ~PSW_MASK_MCHECK;
@@ -572,15 +584,15 @@ setup_memory(void)
                         start = PFN_PHYS(start_pfn) + bmap_size + PAGE_SIZE;
 
                         if (start + INITRD_SIZE > memory_end) {
-                                printk("initrd extends beyond end of memory "
-                                       "(0x%08lx > 0x%08lx)\n"
+                                pr_err("initrd extends beyond end of "
+                                       "memory (0x%08lx > 0x%08lx) "
                                        "disabling initrd\n",
                                        start + INITRD_SIZE, memory_end);
                                 INITRD_START = INITRD_SIZE = 0;
                         } else {
-                                printk("Moving initrd (0x%08lx -> 0x%08lx, "
-                                       "size: %ld)\n",
-                                       INITRD_START, start, INITRD_SIZE);
+                                pr_info("Moving initrd (0x%08lx -> "
+                                        "0x%08lx, size: %ld)\n",
+                                        INITRD_START, start, INITRD_SIZE);
                                 memmove((void *) start, (void *) INITRD_START,
                                         INITRD_SIZE);
                                 INITRD_START = start;
@@ -642,8 +654,9 @@ setup_memory(void)
                         initrd_start = INITRD_START;
                         initrd_end = initrd_start + INITRD_SIZE;
                 } else {
-                        printk("initrd extends beyond end of memory "
-                               "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
+                        pr_err("initrd extends beyond end of "
+                               "memory (0x%08lx > 0x%08lx) "
+                               "disabling initrd\n",
                                initrd_start + INITRD_SIZE, memory_end);
                         initrd_start = initrd_end = 0;
                 }
@@ -651,23 +664,6 @@ setup_memory(void)
 #endif
 }
 
-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;
-
-        asm volatile(".insn s,0xb2b00000,%0" /* stfle */
-                     : "=m" (*(addrtype *) list), "+d" (__nr) : : "cc");
-        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.
  */
@@ -739,8 +735,13 @@ static void __init setup_hwcaps(void)
                 strcpy(elf_platform, "z990");
                 break;
         case 0x2094:
+        case 0x2096:
                 strcpy(elf_platform, "z9-109");
                 break;
+        case 0x2097:
+        case 0x2098:
+                strcpy(elf_platform, "z10");
+                break;
         }
 }
 
@@ -752,25 +753,34 @@ static void __init setup_hwcaps(void)
 void __init
 setup_arch(char **cmdline_p)
 {
+        /* set up preferred console */
+        add_preferred_console("ttyS", 0, NULL);
+
         /*
          * print what head.S has found out about the machine
          */
 #ifndef CONFIG_64BIT
-        printk((MACHINE_IS_VM) ?
-               "We are running under VM (31 bit mode)\n" :
-               "We are running native (31 bit mode)\n");
-        printk((MACHINE_HAS_IEEE) ?
-               "This machine has an IEEE fpu\n" :
-               "This machine has no IEEE fpu\n");
+        if (MACHINE_IS_VM)
+                pr_info("Linux is running as a z/VM "
+                        "guest operating system in 31-bit mode\n");
+        else
+                pr_info("Linux is running natively in 31-bit mode\n");
+        if (MACHINE_HAS_IEEE)
+                pr_info("The hardware system has IEEE compatible "
+                        "floating point units\n");
+        else
+                pr_info("The hardware system has no IEEE compatible "
+                        "floating point units\n");
 #else /* CONFIG_64BIT */
         if (MACHINE_IS_VM)
-                printk("We are running under VM (64 bit mode)\n");
+                pr_info("Linux is running as a z/VM "
+                        "guest operating system in 64-bit mode\n");
         else if (MACHINE_IS_KVM) {
-                printk("We are running under KVM (64 bit mode)\n");
+                pr_info("Linux is running under KVM in 64-bit mode\n");
                 add_preferred_console("hvc", 0, NULL);
                 s390_virtio_console_init();
         } else
-                printk("We are running native (64 bit mode)\n");
+                pr_info("Linux is running natively in 64-bit mode\n");
 #endif /* CONFIG_64BIT */
 
         /* Have one command line that is parsed and saved in /proc/cmdline */
@@ -818,90 +828,3 @@ setup_arch(char **cmdline_p)
         /* Setup zfcpdump support */
         setup_zfcpdump(console_devno);
 }
-
-void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo)
-{
-   printk(KERN_INFO "cpu %d "
-#ifdef CONFIG_SMP
-           "phys_idx=%d "
-#endif
-           "vers=%02X ident=%06X machine=%04X unused=%04X\n",
-           cpuinfo->cpu_nr,
-#ifdef CONFIG_SMP
-           cpuinfo->cpu_addr,
-#endif
-           cpuinfo->cpu_id.version,
-           cpuinfo->cpu_id.ident,
-           cpuinfo->cpu_id.machine,
-           cpuinfo->cpu_id.unused);
-}
-
-/*
- * show_cpuinfo - Get information on one CPU for use by procfs.
- */
-
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
-        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;
-        int i;
-
-        s390_adjust_jiffies();
-        preempt_disable();
-        if (!n) {
-                seq_printf(m, "vendor_id       : IBM/S390\n"
-                               "# processors    : %i\n"
-                               "bogomips per cpu: %lu.%02lu\n",
-                               num_online_cpus(), loops_per_jiffy/(500000/HZ),
-                               (loops_per_jiffy/(5000/HZ))%100);
-                seq_puts(m, "features\t: ");
-                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");
-        }
-
-        if (cpu_online(n)) {
-#ifdef CONFIG_SMP
-                if (smp_processor_id() == n)
-                        cpuinfo = &S390_lowcore.cpu_data;
-                else
-                        cpuinfo = &lowcore_ptr[n]->cpu_data;
-#else
-                cpuinfo = &S390_lowcore.cpu_data;
-#endif
-                seq_printf(m, "processor %li: "
-                               "version = %02X,  "
-                               "identification = %06X,  "
-                               "machine = %04X\n",
-                               n, cpuinfo->cpu_id.version,
-                               cpuinfo->cpu_id.ident,
-                               cpuinfo->cpu_id.machine);
-        }
-        preempt_enable();
-        return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-        return *pos < NR_CPUS ? (void *)((unsigned long) *pos + 1) : NULL;
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-        ++*pos;
-        return c_start(m, pos);
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-const struct seq_operations cpuinfo_op = {
-        .start  = c_start,
-        .next   = c_next,
-        .stop   = c_stop,
-        .show   = show_cpuinfo,
-};
-