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| author |   Nicholas Piggin <npiggin@gmail.com> | 2017-12-20 09:25:43 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-01-19 22:36:57 +1100 |
| commit | 9f83e00f4cc1c560b6847acecba2b3746c8d8c06 (patch) | |
| tree | d164740eb00037ab08f8cec702e4ff2c546c52fc /include/linux/stacktrace.h | |
| parent | powerpc/64: Add #defines for paca->soft_enabled flags (diff) | |
powerpc/64: Improve inline asm in arch_local_irq_disable
arch_local_irq_disable is implemented strangely, with a temporary
output register being set to the desired soft_enabled value via an
immediate input, which is then used to store to memory. This is not
required, the immediate can be specified directly as a register input.
For simple cases at least, assembly is unchanged except register
mapping.
Reviewed-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/linux/stacktrace.h')
0 files changed, 0 insertions, 0 deletions