diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-10-12 13:24:45 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-10-19 17:07:36 +0200 |
| commit | ad3bc0ac1d2ed311ef3a9d6f2849948433a9f338 (patch) | |
| tree | c29158815f1d0b56a938528bbd9f07b1baff3a7f /arch/s390/include | |
| parent | 00a8f886dbdaeea1d93543d5311ddf3a2680bf2b (diff) | |
s390/ctl_reg: use decoding unions in update_cr_regs
Add a decoding union for the bits in control registers 2 and use
'union ctlreg0' and 'union ctlreg2' in update_cr_regs to improve
readability.
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/ctl_reg.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h index e508dff92535..5d23ecf4297a 100644 --- a/arch/s390/include/asm/ctl_reg.h +++ b/arch/s390/include/asm/ctl_reg.h @@ -54,7 +54,11 @@ void smp_ctl_clear_bit(int cr, int bit); union ctlreg0 { unsigned long val; struct { - unsigned long : 32; + unsigned long : 8; + unsigned long tcx : 1; /* Transactional-Execution control */ + unsigned long pifo : 1; /* Transactional-Execution Program- + Interruption-Filtering Override */ + unsigned long : 22; unsigned long : 3; unsigned long lap : 1; /* Low-address-protection control */ unsigned long : 4; @@ -70,6 +74,19 @@ union ctlreg0 { }; }; +union ctlreg2 { + unsigned long val; + struct { + unsigned long : 33; + unsigned long ducto : 25; + unsigned long : 1; + unsigned long gse : 1; + unsigned long : 1; + unsigned long tds : 1; + unsigned long tdc : 2; + }; +}; + #ifdef CONFIG_SMP # define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit) # define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit) |