diff options
Diffstat (limited to 'arch/tile/kernel/entry.S')
-rw-r--r-- | arch/tile/kernel/entry.S | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/arch/tile/kernel/entry.S b/arch/tile/kernel/entry.S deleted file mode 100644 index 101de132e363..000000000000 --- a/arch/tile/kernel/entry.S +++ /dev/null @@ -1,64 +0,0 @@ -/* - * Copyright 2010 Tilera Corporation. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation, version 2. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for - * more details. - */ - -#include <linux/linkage.h> -#include <linux/unistd.h> -#include <asm/irqflags.h> -#include <asm/processor.h> -#include <arch/abi.h> -#include <arch/spr_def.h> - -#ifdef __tilegx__ -#define bnzt bnezt -#endif - -STD_ENTRY(current_text_addr) - { move r0, lr; jrp lr } - STD_ENDPROC(current_text_addr) - -STD_ENTRY(KBacktraceIterator_init_current) - { move r2, lr; lnk r1 } - { move r4, r52; addli r1, r1, KBacktraceIterator_init_current - . } - { move r3, sp; j _KBacktraceIterator_init_current } - jrp lr /* keep backtracer happy */ - STD_ENDPROC(KBacktraceIterator_init_current) - -/* Loop forever on a nap during SMP boot. */ -STD_ENTRY(smp_nap) - nap - nop /* avoid provoking the icache prefetch with a jump */ - j smp_nap /* we are not architecturally guaranteed not to exit nap */ - jrp lr /* clue in the backtracer */ - STD_ENDPROC(smp_nap) - -/* - * Enable interrupts racelessly and then nap until interrupted. - * Architecturally, we are guaranteed that enabling interrupts via - * mtspr to INTERRUPT_CRITICAL_SECTION only interrupts at the next PC. - * This function's _cpu_idle_nap address is special; see intvec.S. - * When interrupted at _cpu_idle_nap, we bump the PC forward 8, and - * as a result return to the function that called _cpu_idle(). - */ -STD_ENTRY_SECTION(_cpu_idle, .cpuidle.text) - movei r1, 1 - IRQ_ENABLE_LOAD(r2, r3) - mtspr INTERRUPT_CRITICAL_SECTION, r1 - IRQ_ENABLE_APPLY(r2, r3) /* unmask, but still with ICS set */ - mtspr INTERRUPT_CRITICAL_SECTION, zero - .global _cpu_idle_nap -_cpu_idle_nap: - nap - nop /* avoid provoking the icache prefetch with a jump */ - jrp lr - STD_ENDPROC(_cpu_idle) |