diff options
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/diag288_wdt.c | 53 | ||||
| -rw-r--r-- | drivers/watchdog/exar_wdt.c | 2 |
2 files changed, 4 insertions, 51 deletions
diff --git a/drivers/watchdog/diag288_wdt.c b/drivers/watchdog/diag288_wdt.c index 76dffc89c641..887d5a6c155b 100644 --- a/drivers/watchdog/diag288_wdt.c +++ b/drivers/watchdog/diag288_wdt.c @@ -29,26 +29,13 @@ #include <linux/watchdog.h> #include <asm/machine.h> #include <asm/ebcdic.h> +#include <asm/diag288.h> #include <asm/diag.h> #include <linux/io.h> #define MAX_CMDLEN 240 #define DEFAULT_CMD "SYSTEM RESTART" -#define MIN_INTERVAL 15 /* Minimal time supported by diag88 */ -#define MAX_INTERVAL 3600 /* One hour should be enough - pure estimation */ - -#define WDT_DEFAULT_TIMEOUT 30 - -/* Function codes - init, change, cancel */ -#define WDT_FUNC_INIT 0 -#define WDT_FUNC_CHANGE 1 -#define WDT_FUNC_CANCEL 2 -#define WDT_FUNC_CONCEAL 0x80000000 - -/* Action codes for LPAR watchdog */ -#define LPARWDT_RESTART 0 - static char wdt_cmd[MAX_CMDLEN] = DEFAULT_CMD; static bool conceal_on; static bool nowayout_info = WATCHDOG_NOWAYOUT; @@ -75,22 +62,8 @@ static char *cmd_buf; static int diag288(unsigned int func, unsigned int timeout, unsigned long action, unsigned int len) { - union register_pair r1 = { .even = func, .odd = timeout, }; - union register_pair r3 = { .even = action, .odd = len, }; - int err; - diag_stat_inc(DIAG_STAT_X288); - - err = -EINVAL; - asm volatile( - " diag %[r1],%[r3],0x288\n" - "0: la %[err],0\n" - "1:\n" - EX_TABLE(0b, 1b) - : [err] "+d" (err) - : [r1] "d" (r1.pair), [r3] "d" (r3.pair) - : "cc", "memory"); - return err; + return __diag288(func, timeout, action, len); } static int diag288_str(unsigned int func, unsigned int timeout, char *cmd) @@ -189,8 +162,6 @@ static struct watchdog_device wdt_dev = { static int __init diag288_init(void) { - int ret; - watchdog_set_nowayout(&wdt_dev, nowayout_info); if (machine_is_vm()) { @@ -199,24 +170,6 @@ static int __init diag288_init(void) pr_err("The watchdog cannot be initialized\n"); return -ENOMEM; } - - ret = diag288_str(WDT_FUNC_INIT, MIN_INTERVAL, "BEGIN"); - if (ret != 0) { - pr_err("The watchdog cannot be initialized\n"); - kfree(cmd_buf); - return -EINVAL; - } - } else { - if (diag288(WDT_FUNC_INIT, WDT_DEFAULT_TIMEOUT, - LPARWDT_RESTART, 0)) { - pr_err("The watchdog cannot be initialized\n"); - return -EINVAL; - } - } - - if (diag288(WDT_FUNC_CANCEL, 0, 0, 0)) { - pr_err("The watchdog cannot be deactivated\n"); - return -EINVAL; } return watchdog_register_device(&wdt_dev); @@ -228,5 +181,5 @@ static void __exit diag288_exit(void) kfree(cmd_buf); } -module_init(diag288_init); +module_cpu_feature_match(S390_CPU_FEATURE_D288, diag288_init); module_exit(diag288_exit); diff --git a/drivers/watchdog/exar_wdt.c b/drivers/watchdog/exar_wdt.c index 7c61ff343271..c2e3bb08df89 100644 --- a/drivers/watchdog/exar_wdt.c +++ b/drivers/watchdog/exar_wdt.c @@ -221,7 +221,7 @@ static const struct watchdog_info exar_wdt_info = { .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE, - .identity = "Exar/MaxLinear XR28V38x Watchdog", + .identity = "Exar XR28V38x Watchdog", }; static const struct watchdog_ops exar_wdt_ops = { |