From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/arm/include/asm/entry-macro-multi.S | 39 +++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 kernel/arch/arm/include/asm/entry-macro-multi.S (limited to 'kernel/arch/arm/include/asm/entry-macro-multi.S') diff --git a/kernel/arch/arm/include/asm/entry-macro-multi.S b/kernel/arch/arm/include/asm/entry-macro-multi.S new file mode 100644 index 000000000..469a2b30f --- /dev/null +++ b/kernel/arch/arm/include/asm/entry-macro-multi.S @@ -0,0 +1,39 @@ +#include + +/* + * 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 * + @ + adrne lr, BSYM(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 + adrne lr, BSYM(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 -- cgit 1.2.3-korg