diff options
| author | Alexandru Elisei <alexandru.elisei@arm.com> | 2019-04-05 11:20:12 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2019-04-05 12:32:00 +0100 |
| commit | f6e564354a01dd943ba92c514ddf386080d7baa4 (patch) | |
| tree | 221cc9e8f9b8dd2fae3108efa059df9efebcd7bc /arch/arm64/include/asm/assembler.h | |
| parent | 697e96ed1720d6aad196e7a663d545df2edd44a4 (diff) | |
arm64: Use defines instead of magic numbers
Following assembly code is not trivial; make it slightly easier to read by
replacing some of the magic numbers with the defines which are already
present in sysreg.h.
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/assembler.h')
| -rw-r--r-- | arch/arm64/include/asm/assembler.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index c5308d01e228..621212196871 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -442,8 +442,8 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU * reset_pmuserenr_el0 - reset PMUSERENR_EL0 if PMUv3 present */ .macro reset_pmuserenr_el0, tmpreg - mrs \tmpreg, id_aa64dfr0_el1 // Check ID_AA64DFR0_EL1 PMUVer - sbfx \tmpreg, \tmpreg, #8, #4 + mrs \tmpreg, id_aa64dfr0_el1 + sbfx \tmpreg, \tmpreg, #ID_AA64DFR0_PMUVER_SHIFT, #4 cmp \tmpreg, #1 // Skip if no PMU present b.lt 9000f msr pmuserenr_el0, xzr // Disable PMU access from EL0 |