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s390: remove 31 bit support

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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: a960062e58 ("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 <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2015-02-12 13:08:27 +01:00
committed by Martin Schwidefsky
parent 1833c9f647
commit 5a79859ae0
97 changed files with 170 additions and 6016 deletions
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20
drivers/s390/crypto/ap_bus.c
View File

@ -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
}
/**