[PATCHv3 4/6] arm64: entry: factor irq triage logic into macros

[Will Deacon]

On Mon, Mar 15, 2021 at 11:56:27AM +0000, Mark Rutland wrote:
> From: Marc Zyngier <maz at kernel.org>
> 
> In subsequent patches we'll allow an FIQ handler to be registered, and
> FIQ exceptions will need to be triaged very similarly to IRQ exceptions.
> So that we can reuse the existing logic, this patch factors the IRQ
> triage logic out into macros that can be reused for FIQ.
> 
> The macros are named to follow the elX_foo_handler scheme used by the C
> exception handlers. For consistency with other top-level exception
> handlers, the kernel_entry/kernel_exit logic is not moved into the
> macros. As FIQ will use a different C handler, this handler name is
> provided as an argument to the macros.
> 
> There should be no functional change as a result of this patch.
> 
> Signed-off-by: Marc Zyngier <maz at kernel.org>
> [Mark: rework macros, commit message, rebase before DAIF rework]
> Signed-off-by: Mark Rutland <mark.rutland at arm.com>
> Tested-by: Hector Martin <marcan at marcan.st>
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> Cc: James Morse <james.morse at arm.com>
> Cc: Thomas Gleixner <tglx at linutronix.de>
> Cc: Will Deacon <will at kernel.org>
> ---
>  arch/arm64/kernel/entry.S | 80 +++++++++++++++++++++++++----------------------
>  1 file changed, 43 insertions(+), 37 deletions(-)

Acked-by: Will Deacon <will at kernel.org>

Will