diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2011-08-08 13:45:28 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-08-08 13:45:28 +0900 |
| commit | 77c7ee51a062bb595c501ec098125a68999c20c3 (patch) | |
| tree | c5060ca5786ef353e005dae04b61d2c49967284d /arch/s390/kernel/setup.c | |
| parent | 1ba762209491e2496e58baffa3fd65d661f54404 (diff) | |
| parent | 322a8b034003c0d46d39af85bf24fee27b902f48 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-latest
Conflicts:
drivers/tty/serial/sh-sci.c
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 0c35dee10b0..7b371c37061 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -346,7 +346,7 @@ setup_lowcore(void) lc = __alloc_bootmem_low(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0); lc->restart_psw.mask = PSW_BASE_BITS | PSW_DEFAULT_KEY; lc->restart_psw.addr = - PSW_ADDR_AMODE | (unsigned long) restart_int_handler; + PSW_ADDR_AMODE | (unsigned long) psw_restart_int_handler; if (user_mode != HOME_SPACE_MODE) lc->restart_psw.mask |= PSW_ASC_HOME; lc->external_new_psw.mask = psw_kernel_bits; @@ -529,6 +529,27 @@ static void __init setup_memory_end(void) memory_end = memory_size; } +void *restart_stack __attribute__((__section__(".data"))); + +/* + * Setup new PSW and allocate stack for PSW restart interrupt + */ +static void __init setup_restart_psw(void) +{ + psw_t psw; + + restart_stack = __alloc_bootmem(ASYNC_SIZE, ASYNC_SIZE, 0); + restart_stack += ASYNC_SIZE; + + /* + * Setup restart PSW for absolute zero lowcore. This is necesary + * if PSW restart is done on an offline CPU that has lowcore zero + */ + psw.mask = PSW_BASE_BITS | PSW_DEFAULT_KEY; + psw.addr = PSW_ADDR_AMODE | (unsigned long) psw_restart_int_handler; + copy_to_absolute_zero(&S390_lowcore.restart_psw, &psw, sizeof(psw)); +} + static void __init setup_memory(void) { @@ -731,6 +752,7 @@ static void __init setup_hwcaps(void) strcpy(elf_platform, "z10"); break; case 0x2817: + case 0x2818: strcpy(elf_platform, "z196"); break; } @@ -792,6 +814,7 @@ setup_arch(char **cmdline_p) setup_addressing_mode(); setup_memory(); setup_resources(); + setup_restart_psw(); setup_lowcore(); cpu_init(); |