diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2021-11-30 08:19:13 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2021-12-03 18:43:38 +0100 |
| commit | c1fe8d054c0a8b0ff0406dcc0ddc6c55e1cfddbc (patch) | |
| tree | 7538f82919d5267012be1ff0c89d0b69a8027b19 /arch/arm/mach-rpc/fiq.S | |
| parent | ARM: riscpc: drop support for IOMD_IRQREQC/IOMD_IRQREQD IRQ groups (diff) | |
| download | linux-c1fe8d054c0a8b0ff0406dcc0ddc6c55e1cfddbc.tar.xz linux-c1fe8d054c0a8b0ff0406dcc0ddc6c55e1cfddbc.zip | |
ARM: riscpc: use GENERIC_IRQ_MULTI_HANDLER
This is one of the last platforms using the old entry path.
While this code path is spread over a few files, it is fairly
straightforward to convert it into an equivalent C version,
leaving the existing algorithm and all the priority handling
the same.
Unlike most irqchip drivers, this means reading the status
register(s) in a loop and always handling the highest-priority
irq first.
The IOMD_IRQREQC and IOMD_IRQREQD registers are not actaully
used here, but I left the code in place for the time being,
to keep the conversion as direct as possible. It could be
removed in a cleanup on top.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[ardb: drop obsolete IOMD_IRQREQC/IOMD_IRQREQD handling]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com> # ARMv7M
Diffstat (limited to 'arch/arm/mach-rpc/fiq.S')
| -rw-r--r-- | arch/arm/mach-rpc/fiq.S | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/mach-rpc/fiq.S b/arch/arm/mach-rpc/fiq.S index 0de83e9b0b39..087bdf4bc093 100644 --- a/arch/arm/mach-rpc/fiq.S +++ b/arch/arm/mach-rpc/fiq.S @@ -2,10 +2,11 @@ #include <linux/linkage.h> #include <asm/assembler.h> #include <mach/hardware.h> -#include <mach/entry-macro.S> - .text + .equ ioc_base_high, IOC_BASE & 0xff000000 + .equ ioc_base_low, IOC_BASE & 0x00ff0000 + .text .global rpc_default_fiq_end ENTRY(rpc_default_fiq_start) mov r12, #ioc_base_high |