diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/include/asm/entry-macro-multi.S | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
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 <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/arm/include/asm/entry-macro-multi.S')
| -rw-r--r-- | kernel/arch/arm/include/asm/entry-macro-multi.S | 39 |
1 files changed, 39 insertions, 0 deletions
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 <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 * + @ + 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 |