diff options
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 290e504061a3..a3674c06b9bb 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -39,6 +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> @@ -427,7 +428,7 @@ 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; @@ -678,16 +679,7 @@ 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; @@ -697,6 +689,13 @@ 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. */ @@ -741,11 +740,14 @@ 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) @@ -823,6 +825,7 @@ 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). @@ -864,8 +867,9 @@ 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; @@ -880,7 +884,7 @@ 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"); |