diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2016-11-14 09:46:06 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-11-23 18:02:22 +0300 |
| commit | 1e16b09666baaf2919f991064237961ca766e394 (patch) | |
| tree | a98fb4c3278aa2687e7167890f4871d5bf9f18f4 /arch/s390/kernel/perf_cpum_sf.c | |
| parent | 3a890380e42667145fc967b22ff720a0451d8953 (diff) | |
| download | linux-1e16b09666baaf2919f991064237961ca766e394.tar.xz | |
s390/cpumf: simplify psw generation
Use the psw_bits macro and simplify the code. The generated code is
also better since it doesn't contain any conditional branches anymore.
Reviewed-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/perf_cpum_sf.c')
| -rw-r--r-- | arch/s390/kernel/perf_cpum_sf.c | 26 |
1 files changed, 5 insertions, 21 deletions
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index fcc634c1479a..4e7ee8647b8b 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -995,27 +995,11 @@ static int perf_push_sample(struct perf_event *event, struct sf_raw_sample *sfr) regs.int_parm = CPU_MF_INT_SF_PRA; sde_regs = (struct perf_sf_sde_regs *) ®s.int_parm_long; - regs.psw.addr = sfr->basic.ia; - if (sfr->basic.T) - regs.psw.mask |= PSW_MASK_DAT; - if (sfr->basic.W) - regs.psw.mask |= PSW_MASK_WAIT; - if (sfr->basic.P) - regs.psw.mask |= PSW_MASK_PSTATE; - switch (sfr->basic.AS) { - case 0x0: - regs.psw.mask |= PSW_ASC_PRIMARY; - break; - case 0x1: - regs.psw.mask |= PSW_ASC_ACCREG; - break; - case 0x2: - regs.psw.mask |= PSW_ASC_SECONDARY; - break; - case 0x3: - regs.psw.mask |= PSW_ASC_HOME; - break; - } + psw_bits(regs.psw).ia = sfr->basic.ia; + psw_bits(regs.psw).t = sfr->basic.T; + psw_bits(regs.psw).w = sfr->basic.W; + psw_bits(regs.psw).p = sfr->basic.P; + psw_bits(regs.psw).as = sfr->basic.AS; /* * A non-zero guest program parameter indicates a guest |