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| author | Mark Rutland <mark.rutland@arm.com> | 2021-05-20 12:50:27 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-05-26 22:45:45 +0100 |
| commit | e176e2677cccd458f99c69d16d27f86adcdd02e4 (patch) | |
| tree | 6e80770f41aff1ae15a6860486e1f93f346c7b17 /arch/arm64/include/asm/assembler.h | |
| parent | 503555325d495e8857b89be08ba6a6dfbeab4799 (diff) | |
| download | linux-e176e2677cccd458f99c69d16d27f86adcdd02e4.tar.gz linux-e176e2677cccd458f99c69d16d27f86adcdd02e4.tar.bz2 linux-e176e2677cccd458f99c69d16d27f86adcdd02e4.zip | |
arm64: assembler: add set_this_cpu_offset
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Suzuki Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20210520115031.18509-3-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/assembler.h')
| -rw-r--r-- | arch/arm64/include/asm/assembler.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index 8418c1bd8f04..f0188903557f 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -232,17 +232,25 @@ lr .req x30 // link register * @dst: destination register */ #if defined(__KVM_NVHE_HYPERVISOR__) || defined(__KVM_VHE_HYPERVISOR__) - .macro this_cpu_offset, dst + .macro get_this_cpu_offset, dst mrs \dst, tpidr_el2 .endm #else - .macro this_cpu_offset, dst + .macro get_this_cpu_offset, dst alternative_if_not ARM64_HAS_VIRT_HOST_EXTN mrs \dst, tpidr_el1 alternative_else mrs \dst, tpidr_el2 alternative_endif .endm + + .macro set_this_cpu_offset, src +alternative_if_not ARM64_HAS_VIRT_HOST_EXTN + msr tpidr_el1, \src +alternative_else + msr tpidr_el2, \src +alternative_endif + .endm #endif /* @@ -253,7 +261,7 @@ alternative_endif .macro adr_this_cpu, dst, sym, tmp adrp \tmp, \sym add \dst, \tmp, #:lo12:\sym - this_cpu_offset \tmp + get_this_cpu_offset \tmp add \dst, \dst, \tmp .endm @@ -264,7 +272,7 @@ alternative_endif */ .macro ldr_this_cpu dst, sym, tmp adr_l \dst, \sym - this_cpu_offset \tmp + get_this_cpu_offset \tmp ldr \dst, [\dst, \tmp] .endm @@ -745,7 +753,7 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU cbz \tmp, \lbl #endif adr_l \tmp, irq_stat + IRQ_CPUSTAT_SOFTIRQ_PENDING - this_cpu_offset \tmp2 + get_this_cpu_offset \tmp2 ldr w\tmp, [\tmp, \tmp2] cbnz w\tmp, \lbl // yield on pending softirq in task context .Lnoyield_\@: |