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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/mips/kernel/irq_cpu.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/mips/kernel/irq_cpu.c')
-rw-r--r--ANDROID_3.4.5/arch/mips/kernel/irq_cpu.c115
1 files changed, 0 insertions, 115 deletions
diff --git a/ANDROID_3.4.5/arch/mips/kernel/irq_cpu.c b/ANDROID_3.4.5/arch/mips/kernel/irq_cpu.c
deleted file mode 100644
index 972263bc..00000000
--- a/ANDROID_3.4.5/arch/mips/kernel/irq_cpu.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- *
- * Copyright (C) 2001 Ralf Baechle
- * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved.
- * Author: Maciej W. Rozycki <macro@mips.com>
- *
- * This file define the irq handler for MIPS CPU interrupts.
- *
- * 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; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-/*
- * Almost all MIPS CPUs define 8 interrupt sources. They are typically
- * level triggered (i.e., cannot be cleared from CPU; must be cleared from
- * device). The first two are software interrupts which we don't really
- * use or support. The last one is usually the CPU timer interrupt if
- * counter register is present or, for CPUs with an external FPU, by
- * convention it's the FPU exception interrupt.
- *
- * Don't even think about using this on SMP. You have been warned.
- *
- * This file exports one global function:
- * void mips_cpu_irq_init(void);
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/irq.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-#include <asm/mipsmtregs.h>
-
-static inline void unmask_mips_irq(struct irq_data *d)
-{
- set_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
- irq_enable_hazard();
-}
-
-static inline void mask_mips_irq(struct irq_data *d)
-{
- clear_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
- irq_disable_hazard();
-}
-
-static struct irq_chip mips_cpu_irq_controller = {
- .name = "MIPS",
- .irq_ack = mask_mips_irq,
- .irq_mask = mask_mips_irq,
- .irq_mask_ack = mask_mips_irq,
- .irq_unmask = unmask_mips_irq,
- .irq_eoi = unmask_mips_irq,
-};
-
-/*
- * Basically the same as above but taking care of all the MT stuff
- */
-
-static unsigned int mips_mt_cpu_irq_startup(struct irq_data *d)
-{
- unsigned int vpflags = dvpe();
-
- clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
- evpe(vpflags);
- unmask_mips_irq(d);
- return 0;
-}
-
-/*
- * While we ack the interrupt interrupts are disabled and thus we don't need
- * to deal with concurrency issues. Same for mips_cpu_irq_end.
- */
-static void mips_mt_cpu_irq_ack(struct irq_data *d)
-{
- unsigned int vpflags = dvpe();
- clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
- evpe(vpflags);
- mask_mips_irq(d);
-}
-
-static struct irq_chip mips_mt_cpu_irq_controller = {
- .name = "MIPS",
- .irq_startup = mips_mt_cpu_irq_startup,
- .irq_ack = mips_mt_cpu_irq_ack,
- .irq_mask = mask_mips_irq,
- .irq_mask_ack = mips_mt_cpu_irq_ack,
- .irq_unmask = unmask_mips_irq,
- .irq_eoi = unmask_mips_irq,
-};
-
-void __init mips_cpu_irq_init(void)
-{
- int irq_base = MIPS_CPU_IRQ_BASE;
- int i;
-
- /* Mask interrupts. */
- clear_c0_status(ST0_IM);
- clear_c0_cause(CAUSEF_IP);
-
- /* Software interrupts are used for MT/CMT IPI */
- for (i = irq_base; i < irq_base + 2; i++)
- irq_set_chip_and_handler(i, cpu_has_mipsmt ?
- &mips_mt_cpu_irq_controller :
- &mips_cpu_irq_controller,
- handle_percpu_irq);
-
- for (i = irq_base + 2; i < irq_base + 8; i++)
- irq_set_chip_and_handler(i, &mips_cpu_irq_controller,
- handle_percpu_irq);
-}