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Diffstat (limited to 'kernel/arch/mips/loongson/loongson-3/cop2-ex.c')
-rw-r--r--kernel/arch/mips/loongson/loongson-3/cop2-ex.c63
1 files changed, 0 insertions, 63 deletions
diff --git a/kernel/arch/mips/loongson/loongson-3/cop2-ex.c b/kernel/arch/mips/loongson/loongson-3/cop2-ex.c
deleted file mode 100644
index ea13764d0..000000000
--- a/kernel/arch/mips/loongson/loongson-3/cop2-ex.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2014 Lemote Corporation.
- * written by Huacai Chen <chenhc@lemote.com>
- *
- * based on arch/mips/cavium-octeon/cpu.c
- * Copyright (C) 2009 Wind River Systems,
- * written by Ralf Baechle <ralf@linux-mips.org>
- */
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/notifier.h>
-
-#include <asm/fpu.h>
-#include <asm/cop2.h>
-#include <asm/current.h>
-#include <asm/mipsregs.h>
-
-static int loongson_cu2_call(struct notifier_block *nfb, unsigned long action,
- void *data)
-{
- int fpu_owned;
- int fr = !test_thread_flag(TIF_32BIT_FPREGS);
-
- switch (action) {
- case CU2_EXCEPTION:
- preempt_disable();
- fpu_owned = __is_fpu_owner();
- if (!fr)
- set_c0_status(ST0_CU1 | ST0_CU2);
- else
- set_c0_status(ST0_CU1 | ST0_CU2 | ST0_FR);
- enable_fpu_hazard();
- KSTK_STATUS(current) |= (ST0_CU1 | ST0_CU2);
- if (fr)
- KSTK_STATUS(current) |= ST0_FR;
- else
- KSTK_STATUS(current) &= ~ST0_FR;
- /* If FPU is owned, we needn't init or restore fp */
- if (!fpu_owned) {
- set_thread_flag(TIF_USEDFPU);
- if (!used_math()) {
- _init_fpu(current->thread.fpu.fcr31);
- set_used_math();
- } else
- _restore_fp(current);
- }
- preempt_enable();
-
- return NOTIFY_STOP; /* Don't call default notifier */
- }
-
- return NOTIFY_OK; /* Let default notifier send signals */
-}
-
-static int __init loongson_cu2_setup(void)
-{
- return cu2_notifier(loongson_cu2_call, 0);
-}
-early_initcall(loongson_cu2_setup);