diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2023-09-11 21:39:58 +0200 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2023-09-19 13:26:56 +0200 |
| commit | 8d5e98f8d6b11dd0e61323ece3b7ccceea55c281 (patch) | |
| tree | 7e0ff091fc8130648550fc2dfb147df93b8960af /arch/s390/boot | |
| parent | a74e4fc168d284e1e4e7296f8cf4b884035ebd45 (diff) | |
s390/ctlreg: add local and system prefix to some functions
Add local and system prefix to some functions to clarify they change
control register contents on either the local CPU or the on all CPUs.
This results in the following API:
Two defines which load and save multiple control registers.
The defines correlate with the following C prototypes:
void __local_ctl_load(unsigned long *, unsigned int cr_low, unsigned int cr_high);
void __local_ctl_store(unsigned long *, unsigned int cr_low, unsigned int cr_high);
Two functions which locally set or clear one bit for a specified
control register:
void local_ctl_set_bit(unsigned int cr, unsigned int bit);
void local_ctl_clear_bit(unsigned int cr, unsigned int bit);
Two functions which set or clear one bit for a specified control
register on all CPUs:
void system_ctl_set_bit(unsigned int cr, unsigned int bit);
void system_ctl_clear_bit(unsigend int cr, unsigned int bit);
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot')
| -rw-r--r-- | arch/s390/boot/startup.c | 2 | ||||
| -rw-r--r-- | arch/s390/boot/vmem.c | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c index d3e48bd9c394..cf622479647f 100644 --- a/arch/s390/boot/startup.c +++ b/arch/s390/boot/startup.c @@ -49,7 +49,7 @@ static void detect_facilities(void) { if (test_facility(8)) { machine.has_edat1 = 1; - __ctl_set_bit(0, 23); + local_ctl_set_bit(0, 23); } if (test_facility(78)) machine.has_edat2 = 1; diff --git a/arch/s390/boot/vmem.c b/arch/s390/boot/vmem.c index 9ac6d00537c1..666fc4e50c1e 100644 --- a/arch/s390/boot/vmem.c +++ b/arch/s390/boot/vmem.c @@ -446,9 +446,9 @@ void setup_vmem(unsigned long asce_limit) S390_lowcore.kernel_asce = swapper_pg_dir | asce_bits; S390_lowcore.user_asce = s390_invalid_asce; - __ctl_load(S390_lowcore.kernel_asce, 1, 1); - __ctl_load(S390_lowcore.user_asce, 7, 7); - __ctl_load(S390_lowcore.kernel_asce, 13, 13); + __local_ctl_load(S390_lowcore.kernel_asce, 1, 1); + __local_ctl_load(S390_lowcore.user_asce, 7, 7); + __local_ctl_load(S390_lowcore.kernel_asce, 13, 13); init_mm.context.asce = S390_lowcore.kernel_asce; } |