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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/arm/include/asm/entry-macro-multi.S | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/include/asm/entry-macro-multi.S')
| -rw-r--r-- | arch/arm/include/asm/entry-macro-multi.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/include/asm/entry-macro-multi.S b/arch/arm/include/asm/entry-macro-multi.S new file mode 100644 index 000000000..dfc6bfa43 --- /dev/null +++ b/arch/arm/include/asm/entry-macro-multi.S @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include <asm/assembler.h> + +/* + * Interrupt handling. Preserves r7, r8, r9 + */ + .macro arch_irq_handler_default + get_irqnr_preamble r6, lr +1: get_irqnr_and_base r0, r2, r6, lr + movne r1, sp + @ + @ routine called with r0 = irq number, r1 = struct pt_regs * + @ + badrne lr, 1b + bne asm_do_IRQ + +#ifdef CONFIG_SMP + /* + * XXX + * + * this macro assumes that irqstat (r2) and base (r6) are + * preserved from get_irqnr_and_base above + */ + ALT_SMP(test_for_ipi r0, r2, r6, lr) + ALT_UP_B(9997f) + movne r1, sp + badrne lr, 1b + bne do_IPI +#endif +9997: + .endm + + .macro arch_irq_handler, symbol_name + .align 5 + .global \symbol_name +\symbol_name: + mov r8, lr + arch_irq_handler_default + ret r8 + .endm |