diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2021-06-07 10:46:11 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-06-07 11:35:55 +0100 |
| commit | 064dbfb4169141943ec7d9dbfd02974dd008f2ce (patch) | |
| tree | 2e67ec533160b8bc74d99ca82c0a11cd551be86b /arch/arm64/include/asm/processor.h | |
| parent | f8049488e7d37b0a0e438ee449e83b3e46958743 (diff) | |
arm64: entry: convert IRQ+FIQ handlers to C
For various reasons we'd like to convert the bulk of arm64's exception
triage logic to C. As a step towards that, this patch converts the EL1
and EL0 IRQ+FIQ triage logic to C.
Separate C functions are added for the native and compat cases so that
in subsequent patches we can handle native/compat differences in C.
Since the triage functions can now call arm64_apply_bp_hardening()
directly, the do_el0_irq_bp_hardening() wrapper function is removed.
Since the user_exit_irqoff macro is now unused, it is removed. The
user_enter_irqoff macro is still used by the ret_to_user code, and
cannot be removed at this time.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210607094624.34689-8-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/processor.h')
| -rw-r--r-- | arch/arm64/include/asm/processor.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 9df3feeee890..2f21c76324bb 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -257,8 +257,6 @@ void set_task_sctlr_el1(u64 sctlr); extern struct task_struct *cpu_switch_to(struct task_struct *prev, struct task_struct *next); -asmlinkage void arm64_preempt_schedule_irq(void); - #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1) |