diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/Makefile | 1 | ||||
| -rw-r--r-- | arch/s390/include/asm/kexec.h | 18 | ||||
| -rw-r--r-- | arch/s390/kernel/compat_wrapper.S | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/process.c | 5 | ||||
| -rw-r--r-- | arch/s390/kernel/time.c | 7 | ||||
| -rw-r--r-- | arch/s390/kernel/vmlinux.lds.S | 4 | ||||
| -rw-r--r-- | arch/s390/mm/pgtable.c | 2 |
7 files changed, 30 insertions, 9 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile index e9f35334169..0ad2f1e1ce9 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -88,7 +88,6 @@ KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare KBUILD_AFLAGS += $(aflags-y) OBJCOPYFLAGS := -O binary -LDFLAGS_vmlinux := -e start head-y := arch/s390/kernel/head.o head-y += arch/s390/kernel/$(if $(CONFIG_64BIT),head64.o,head31.o) diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h index cf4e47b0948..3f30dac804e 100644 --- a/arch/s390/include/asm/kexec.h +++ b/arch/s390/include/asm/kexec.h @@ -42,6 +42,24 @@ /* The native architecture */ #define KEXEC_ARCH KEXEC_ARCH_S390 +/* + * Size for s390x ELF notes per CPU + * + * Seven notes plus zero note at the end: prstatus, fpregset, timer, + * tod_cmp, tod_reg, control regs, and prefix + */ +#define KEXEC_NOTE_BYTES \ + (ALIGN(sizeof(struct elf_note), 4) * 8 + \ + ALIGN(sizeof("CORE"), 4) * 7 + \ + ALIGN(sizeof(struct elf_prstatus), 4) + \ + ALIGN(sizeof(elf_fpregset_t), 4) + \ + ALIGN(sizeof(u64), 4) + \ + ALIGN(sizeof(u64), 4) + \ + ALIGN(sizeof(u32), 4) + \ + ALIGN(sizeof(u64) * 16, 4) + \ + ALIGN(sizeof(u32), 4) \ + ) + /* Provide a dummy definition to avoid build failures. */ static inline void crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs) { } diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 18c51df9fe0..ff605a39cf4 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -662,7 +662,7 @@ ENTRY(sys32_getresuid16_wrapper) ENTRY(sys32_poll_wrapper) llgtr %r2,%r2 # struct pollfd * llgfr %r3,%r3 # unsigned int - lgfr %r4,%r4 # long + lgfr %r4,%r4 # int jg sys_poll # branch to system call ENTRY(sys32_setresgid16_wrapper) diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 3201ae44799..4261aa79977 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -76,7 +76,6 @@ static void default_idle(void) if (test_thread_flag(TIF_MCCK_PENDING)) { local_mcck_enable(); local_irq_enable(); - s390_handle_mcck(); return; } trace_hardirqs_on(); @@ -93,10 +92,12 @@ void cpu_idle(void) for (;;) { tick_nohz_idle_enter(); rcu_idle_enter(); - while (!need_resched()) + while (!need_resched() && !test_thread_flag(TIF_MCCK_PENDING)) default_idle(); rcu_idle_exit(); tick_nohz_idle_exit(); + if (test_thread_flag(TIF_MCCK_PENDING)) + s390_handle_mcck(); preempt_enable_no_resched(); schedule(); preempt_disable(); diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index fa02f443f5f..14da278febb 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -113,11 +113,14 @@ static void fixup_clock_comparator(unsigned long long delta) static int s390_next_ktime(ktime_t expires, struct clock_event_device *evt) { + struct timespec ts; u64 nsecs; - nsecs = ktime_to_ns(ktime_sub(expires, ktime_get_monotonic_offset())); + ts.tv_sec = ts.tv_nsec = 0; + monotonic_to_bootbased(&ts); + nsecs = ktime_to_ns(ktime_add(timespec_to_ktime(ts), expires)); do_div(nsecs, 125); - S390_lowcore.clock_comparator = TOD_UNIX_EPOCH + (nsecs << 9); + S390_lowcore.clock_comparator = sched_clock_base_cc + (nsecs << 9); set_clock_comparator(S390_lowcore.clock_comparator); return 0; } diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index e4c79ebb40e..21109c63eb1 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -9,12 +9,12 @@ #ifndef CONFIG_64BIT OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390") OUTPUT_ARCH(s390) -ENTRY(_start) +ENTRY(startup) jiffies = jiffies_64 + 4; #else OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390") OUTPUT_ARCH(s390:64-bit) -ENTRY(_start) +ENTRY(startup) jiffies = jiffies_64; #endif diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 9a4d02f64f1..51b0738e13d 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -574,7 +574,7 @@ static inline void page_table_free_pgste(unsigned long *table) page = pfn_to_page(__pa(table) >> PAGE_SHIFT); mp = (struct gmap_pgtable *) page->index; BUG_ON(!list_empty(&mp->mapper)); - pgtable_page_ctor(page); + pgtable_page_dtor(page); atomic_set(&page->_mapcount, -1); kfree(mp); __free_page(page); |