From 5a79859ae0f35d25c67a03e82bf0c80592f16a39 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 12 Feb 2015 13:08:27 +0100 Subject: s390: remove 31 bit support Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 20 -------------------- 1 file changed, 20 deletions(-) (limited to 'drivers/s390/crypto/ap_bus.c') diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 3d7f19fb9a4e..33890c9850de 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -174,12 +174,10 @@ static int ap_interrupts_available(void) * * Returns 1 if AP configuration information is available. */ -#ifdef CONFIG_64BIT static int ap_configuration_available(void) { return test_facility(2) && test_facility(12); } -#endif /** * ap_test_queue(): Test adjunct processor queue. @@ -239,7 +237,6 @@ static inline struct ap_queue_status ap_reset_queue(ap_qid_t qid) return reg1; } -#ifdef CONFIG_64BIT /** * ap_queue_interruption_control(): Enable interruption for a specific AP. * @qid: The AP queue number @@ -261,9 +258,7 @@ ap_queue_interruption_control(ap_qid_t qid, void *ind) : "cc" ); return reg1_out; } -#endif -#ifdef CONFIG_64BIT static inline struct ap_queue_status __ap_query_functions(ap_qid_t qid, unsigned int *functions) { @@ -282,9 +277,7 @@ __ap_query_functions(ap_qid_t qid, unsigned int *functions) *functions = (unsigned int)(reg2 >> 32); return reg1; } -#endif -#ifdef CONFIG_64BIT static inline int __ap_query_configuration(struct ap_config_info *config) { register unsigned long reg0 asm ("0") = 0x04000000UL; @@ -302,7 +295,6 @@ static inline int __ap_query_configuration(struct ap_config_info *config) return reg1; } -#endif /** * ap_query_functions(): Query supported functions. @@ -317,7 +309,6 @@ static inline int __ap_query_configuration(struct ap_config_info *config) */ static int ap_query_functions(ap_qid_t qid, unsigned int *functions) { -#ifdef CONFIG_64BIT struct ap_queue_status status; int i; status = __ap_query_functions(qid, functions); @@ -348,9 +339,6 @@ static int ap_query_functions(ap_qid_t qid, unsigned int *functions) } } return -EBUSY; -#else - return -EINVAL; -#endif } /** @@ -364,7 +352,6 @@ static int ap_query_functions(ap_qid_t qid, unsigned int *functions) */ static int ap_queue_enable_interruption(ap_qid_t qid, void *ind) { -#ifdef CONFIG_64BIT struct ap_queue_status status; int t_depth, t_device_type, rc, i; @@ -404,9 +391,6 @@ static int ap_queue_enable_interruption(ap_qid_t qid, void *ind) } } return rc; -#else - return -EINVAL; -#endif } /** @@ -1238,7 +1222,6 @@ static struct bus_attribute *const ap_bus_attrs[] = { */ static void ap_query_configuration(void) { -#ifdef CONFIG_64BIT if (ap_configuration_available()) { if (!ap_configuration) ap_configuration = @@ -1248,9 +1231,6 @@ static void ap_query_configuration(void) __ap_query_configuration(ap_configuration); } else ap_configuration = NULL; -#else - ap_configuration = NULL; -#endif } /** -- cgit v1.2.3 From 86cd741bc6ed0edf6ea0e8ec5c840cf9e3f3a7cb Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Sat, 14 Feb 2015 11:23:21 +0100 Subject: s390: remove test_facility(2) (== z/Architecture mode active) checks Given that the kernel now always runs in 64 bit mode, it is pointless to check if the z/Architecture mode is active. Remove the checks. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/s390/crypto/ap_bus.c') diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 33890c9850de..f0b9871a4bbd 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -165,7 +165,7 @@ static inline int ap_instructions_available(void) */ static int ap_interrupts_available(void) { - return test_facility(2) && test_facility(65); + return test_facility(65); } /** @@ -176,7 +176,7 @@ static int ap_interrupts_available(void) */ static int ap_configuration_available(void) { - return test_facility(2) && test_facility(12); + return test_facility(12); } /** -- cgit v1.2.3