irq.c (e8775d4aa17d70d123814e68a6a51bbea50e5c16) irq.c (89c81797d4a0779a957f4ea1f0c676cda203615b)
1/*
2 * Derived from arch/i386/kernel/irq.c
3 * Copyright (C) 1992 Linus Torvalds
4 * Adapted from arch/i386 by Gary Thomas
5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
6 * Updated and modified by Cort Dougan <cort@fsmlabs.com>
7 * Copyright (C) 1996-2001 Cort Dougan
8 * Adapted for Power Macintosh by Paul Mackerras

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59#include <asm/io.h>
60#include <asm/pgtable.h>
61#include <asm/irq.h>
62#include <asm/cache.h>
63#include <asm/prom.h>
64#include <asm/ptrace.h>
65#include <asm/machdep.h>
66#include <asm/udbg.h>
1/*
2 * Derived from arch/i386/kernel/irq.c
3 * Copyright (C) 1992 Linus Torvalds
4 * Adapted from arch/i386 by Gary Thomas
5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
6 * Updated and modified by Cort Dougan <cort@fsmlabs.com>
7 * Copyright (C) 1996-2001 Cort Dougan
8 * Adapted for Power Macintosh by Paul Mackerras

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59#include <asm/io.h>
60#include <asm/pgtable.h>
61#include <asm/irq.h>
62#include <asm/cache.h>
63#include <asm/prom.h>
64#include <asm/ptrace.h>
65#include <asm/machdep.h>
66#include <asm/udbg.h>
67#include <asm/dbell.h>
68
67#ifdef CONFIG_PPC64
68#include <asm/paca.h>
69#include <asm/firmware.h>
70#include <asm/lv1call.h>
71#endif
72#define CREATE_TRACE_POINTS
73#include <asm/trace.h>
74

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148 * if (get_paca()->hard_enabled) return;
149 * But again we need to take care that gcc gets hard_enabled directly
150 * via r13, not choose to use an intermediate register, lest we're
151 * preempted to a different cpu in between the two instructions.
152 */
153 if (get_hard_enabled())
154 return;
155
69#ifdef CONFIG_PPC64
70#include <asm/paca.h>
71#include <asm/firmware.h>
72#include <asm/lv1call.h>
73#endif
74#define CREATE_TRACE_POINTS
75#include <asm/trace.h>
76

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150 * if (get_paca()->hard_enabled) return;
151 * But again we need to take care that gcc gets hard_enabled directly
152 * via r13, not choose to use an intermediate register, lest we're
153 * preempted to a different cpu in between the two instructions.
154 */
155 if (get_hard_enabled())
156 return;
157
158#if defined(CONFIG_BOOKE) && defined(CONFIG_SMP)
159 /* Check for pending doorbell interrupts on SMP */
160 doorbell_exception(NULL);
161#endif
162
156 /*
157 * Need to hard-enable interrupts here. Since currently disabled,
158 * no need to take further asm precautions against preemption; but
159 * use local_paca instead of get_paca() to avoid preemption checking.
160 */
161 local_paca->hard_enabled = en;
162
163#ifndef CONFIG_BOOKE

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163 /*
164 * Need to hard-enable interrupts here. Since currently disabled,
165 * no need to take further asm precautions against preemption; but
166 * use local_paca instead of get_paca() to avoid preemption checking.
167 */
168 local_paca->hard_enabled = en;
169
170#ifndef CONFIG_BOOKE

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