[MIPS] TRACE_IRQFLAGS_SUPPORT support.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 0 insertions, 221 deletions

diff --git a/include/asm-mips/interrupt.h b/include/asm-mips/interrupt.h
deleted file mode 100644
index a99d686..0000000
--- a/include/asm-mips/interrupt.h
+++ /dev/null
@@ -1,221 +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) 1994, 95, 96, 97, 98, 99, 2003 by Ralf Baechle
- * Copyright (C) 1996 by Paul M. Antoine
- * Copyright (C) 1999 Silicon Graphics
- * Copyright (C) 2000 MIPS Technologies, Inc.
- */
-#ifndef _ASM_INTERRUPT_H
-#define _ASM_INTERRUPT_H
-
-#include <asm/hazards.h>
-
-__asm__ (
-	"	.macro	local_irq_enable				\n"
-	"	.set	push						\n"
-	"	.set	reorder						\n"
-	"	.set	noat						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"	mfc0	$1, $2, 1	# SMTC - clear TCStatus.IXMT	\n"
-	"	ori	$1, 0x400					\n"
-	"	xori	$1, 0x400					\n"
-	"	mtc0	$1, $2, 1					\n"
-#elif defined(CONFIG_CPU_MIPSR2)
-	"	ei							\n"
-#else
-	"	mfc0	$1,$12						\n"
-	"	ori	$1,0x1f						\n"
-	"	xori	$1,0x1e						\n"
-	"	mtc0	$1,$12						\n"
-#endif
-	"	irq_enable_hazard					\n"
-	"	.set	pop						\n"
-	"	.endm");
-
-static inline void local_irq_enable(void)
-{
-	__asm__ __volatile__(
-		"local_irq_enable"
-		: /* no outputs */
-		: /* no inputs */
-		: "memory");
-}
-
-/*
- * For cli() we have to insert nops to make sure that the new value
- * has actually arrived in the status register before the end of this
- * macro.
- * R4000/R4400 need three nops, the R4600 two nops and the R10000 needs
- * no nops at all.
- */
-/*
- * For TX49, operating only IE bit is not enough.
- *
- * If mfc0 $12 follows store and the mfc0 is last instruction of a
- * page and fetching the next instruction causes TLB miss, the result
- * of the mfc0 might wrongly contain EXL bit.
- *
- * ERT-TX49H2-027, ERT-TX49H3-012, ERT-TX49HL3-006, ERT-TX49H4-008
- *
- * Workaround: mask EXL bit of the result or place a nop before mfc0.
- */
-__asm__ (
-	"	.macro	local_irq_disable\n"
-	"	.set	push						\n"
-	"	.set	noat						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"	mfc0	$1, $2, 1					\n"
-	"	ori	$1, 0x400					\n"
-	"	.set	noreorder					\n"
-	"	mtc0	$1, $2, 1					\n"
-#elif defined(CONFIG_CPU_MIPSR2)
-	"	di							\n"
-#else
-	"	mfc0	$1,$12						\n"
-	"	ori	$1,0x1f						\n"
-	"	xori	$1,0x1f						\n"
-	"	.set	noreorder					\n"
-	"	mtc0	$1,$12						\n"
-#endif
-	"	irq_disable_hazard					\n"
-	"	.set	pop						\n"
-	"	.endm							\n");
-
-static inline void local_irq_disable(void)
-{
-	__asm__ __volatile__(
-		"local_irq_disable"
-		: /* no outputs */
-		: /* no inputs */
-		: "memory");
-}
-
-__asm__ (
-	"	.macro	local_save_flags flags				\n"
-	"	.set	push						\n"
-	"	.set	reorder						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"	mfc0	\\flags, $2, 1					\n"
-#else
-	"	mfc0	\\flags, $12					\n"
-#endif
-	"	.set	pop						\n"
-	"	.endm							\n");
-
-#define local_save_flags(x)						\
-__asm__ __volatile__(							\
-	"local_save_flags %0"						\
-	: "=r" (x))
-
-__asm__ (
-	"	.macro	local_irq_save result				\n"
-	"	.set	push						\n"
-	"	.set	reorder						\n"
-	"	.set	noat						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"	mfc0	\\result, $2, 1					\n"
-	"	ori	$1, \\result, 0x400				\n"
-	"	.set	noreorder					\n"
-	"	mtc0	$1, $2, 1					\n"
-	"	andi	\\result, \\result, 0x400			\n"
-#elif defined(CONFIG_CPU_MIPSR2)
-	"	di	\\result					\n"
-	"	andi	\\result, 1					\n"
-#else
-	"	mfc0	\\result, $12					\n"
-	"	ori	$1, \\result, 0x1f				\n"
-	"	xori	$1, 0x1f					\n"
-	"	.set	noreorder					\n"
-	"	mtc0	$1, $12						\n"
-#endif
-	"	irq_disable_hazard					\n"
-	"	.set	pop						\n"
-	"	.endm							\n");
-
-#define local_irq_save(x)						\
-__asm__ __volatile__(							\
-	"local_irq_save\t%0"						\
-	: "=r" (x)							\
-	: /* no inputs */						\
-	: "memory")
-
-__asm__ (
-	"	.macro	local_irq_restore flags				\n"
-	"	.set	push						\n"
-	"	.set	noreorder					\n"
-	"	.set	noat						\n"
-#ifdef CONFIG_MIPS_MT_SMTC
-	"mfc0	$1, $2, 1						\n"
-	"andi	\\flags, 0x400						\n"
-	"ori	$1, 0x400						\n"
-	"xori	$1, 0x400						\n"
-	"or	\\flags, $1						\n"
-	"mtc0	\\flags, $2, 1						\n"
-#elif defined(CONFIG_CPU_MIPSR2) && defined(CONFIG_IRQ_CPU)
-	/*
-	 * Slow, but doesn't suffer from a relativly unlikely race
-	 * condition we're having since days 1.
-	 */
-	"	beqz	\\flags, 1f					\n"
-	"	 di							\n"
-	"	ei							\n"
-	"1:								\n"
-#elif defined(CONFIG_CPU_MIPSR2)
-	/*
-	 * Fast, dangerous.  Life is fun, life is good.
-	 */
-	"	mfc0	$1, $12						\n"
-	"	ins	$1, \\flags, 0, 1				\n"
-	"	mtc0	$1, $12						\n"
-#else
-	"	mfc0	$1, $12						\n"
-	"	andi	\\flags, 1					\n"
-	"	ori	$1, 0x1f					\n"
-	"	xori	$1, 0x1f					\n"
-	"	or	\\flags, $1					\n"
-	"	mtc0	\\flags, $12					\n"
-#endif
-	"	irq_disable_hazard					\n"
-	"	.set	pop						\n"
-	"	.endm							\n");
-
-#define local_irq_restore(flags)					\
-do {									\
-	unsigned long __tmp1;						\
-									\
-	__asm__ __volatile__(						\
-		"local_irq_restore\t%0"					\
-		: "=r" (__tmp1)						\
-		: "0" (flags)						\
-		: "memory");						\
-} while(0)
-
-static inline int irqs_disabled(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-	/*
-	 * SMTC model uses TCStatus.IXMT to disable interrupts for a thread/CPU
-	 */
-	unsigned long __result;
-
-	__asm__ __volatile__(
-	"	.set	noreorder					\n"
-	"	mfc0	%0, $2, 1					\n"
-	"	andi	%0, 0x400					\n"
-	"	slt	%0, $0, %0					\n"
-	"	.set	reorder						\n"
-	: "=r" (__result));
-
-	return __result;
-#else
-	unsigned long flags;
-	local_save_flags(flags);
-
-	return !(flags & 1);
-#endif
-}
-
-#endif /* _ASM_INTERRUPT_H */