diff options
| author | Heiko Carstens <[email protected]> | 2023-09-11 21:39:58 +0200 |
|---|---|---|
| committer | Vasily Gorbik <[email protected]> | 2023-09-19 13:26:56 +0200 |
| commit | 8d5e98f8d6b11dd0e61323ece3b7ccceea55c281 (patch) | |
| tree | 7e0ff091fc8130648550fc2dfb147df93b8960af /arch/s390/kernel/setup.c | |
| 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 <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Vasily Gorbik <[email protected]>
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index ef158bd0ea7b..c516e2e909e6 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -449,7 +449,7 @@ static void __init setup_lowcore(void) lc->restart_fn = (unsigned long) do_restart; lc->restart_data = 0; lc->restart_source = -1U; - __ctl_store(lc->cregs_save_area, 0, 15); + __local_ctl_store(lc->cregs_save_area, 0, 15); lc->spinlock_lockval = arch_spin_lockval(0); lc->spinlock_index = 0; arch_spin_lock_setup(0); @@ -791,15 +791,15 @@ static void __init setup_cr(void) __ctl_duct[4] = (unsigned long)__ctl_duald; /* Update control registers CR2, CR5 and CR15 */ - __ctl_store(cr2.val, 2, 2); - __ctl_store(cr5.val, 5, 5); - __ctl_store(cr15.val, 15, 15); + __local_ctl_store(cr2.val, 2, 2); + __local_ctl_store(cr5.val, 5, 5); + __local_ctl_store(cr15.val, 15, 15); cr2.ducto = (unsigned long)__ctl_duct >> 6; cr5.pasteo = (unsigned long)__ctl_duct >> 6; cr15.lsea = (unsigned long)__ctl_linkage_stack >> 3; - __ctl_load(cr2.val, 2, 2); - __ctl_load(cr5.val, 5, 5); - __ctl_load(cr15.val, 15, 15); + __local_ctl_load(cr2.val, 2, 2); + __local_ctl_load(cr5.val, 5, 5); + __local_ctl_load(cr15.val, 15, 15); } /* |