MIPS: Move headfiles to new location below arch/mips/include

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

1 files changed, 0 insertions, 574 deletions

diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
deleted file mode 100644
index 4c37c4e5..0000000
--- a/include/asm-mips/stackframe.h
+++ /dev/null
@@ -1,574 +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, 99, 2001 Ralf Baechle
- * Copyright (C) 1994, 1995, 1996 Paul M. Antoine.
- * Copyright (C) 1999 Silicon Graphics, Inc.
- * Copyright (C) 2007  Maciej W. Rozycki
- */
-#ifndef _ASM_STACKFRAME_H
-#define _ASM_STACKFRAME_H
-
-#include <linux/threads.h>
-
-#include <asm/asm.h>
-#include <asm/asmmacro.h>
-#include <asm/mipsregs.h>
-#include <asm/asm-offsets.h>
-
-/*
- * For SMTC kernel, global IE should be left set, and interrupts
- * controlled exclusively via IXMT.
- */
-#ifdef CONFIG_MIPS_MT_SMTC
-#define STATMASK 0x1e
-#elif defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
-#define STATMASK 0x3f
-#else
-#define STATMASK 0x1f
-#endif
-
-#ifdef CONFIG_MIPS_MT_SMTC
-#include <asm/mipsmtregs.h>
-#endif /* CONFIG_MIPS_MT_SMTC */
-
-		.macro	SAVE_AT
-		.set	push
-		.set	noat
-		LONG_S	$1, PT_R1(sp)
-		.set	pop
-		.endm
-
-		.macro	SAVE_TEMP
-#ifdef CONFIG_CPU_HAS_SMARTMIPS
-		mflhxu	v1
-		LONG_S	v1, PT_LO(sp)
-		mflhxu	v1
-		LONG_S	v1, PT_HI(sp)
-		mflhxu	v1
-		LONG_S	v1, PT_ACX(sp)
-#else
-		mfhi	v1
-		LONG_S	v1, PT_HI(sp)
-		mflo	v1
-		LONG_S	v1, PT_LO(sp)
-#endif
-#ifdef CONFIG_32BIT
-		LONG_S	$8, PT_R8(sp)
-		LONG_S	$9, PT_R9(sp)
-#endif
-		LONG_S	$10, PT_R10(sp)
-		LONG_S	$11, PT_R11(sp)
-		LONG_S	$12, PT_R12(sp)
-		LONG_S	$13, PT_R13(sp)
-		LONG_S	$14, PT_R14(sp)
-		LONG_S	$15, PT_R15(sp)
-		LONG_S	$24, PT_R24(sp)
-		.endm
-
-		.macro	SAVE_STATIC
-		LONG_S	$16, PT_R16(sp)
-		LONG_S	$17, PT_R17(sp)
-		LONG_S	$18, PT_R18(sp)
-		LONG_S	$19, PT_R19(sp)
-		LONG_S	$20, PT_R20(sp)
-		LONG_S	$21, PT_R21(sp)
-		LONG_S	$22, PT_R22(sp)
-		LONG_S	$23, PT_R23(sp)
-		LONG_S	$30, PT_R30(sp)
-		.endm
-
-#ifdef CONFIG_SMP
-#ifdef CONFIG_MIPS_MT_SMTC
-#define PTEBASE_SHIFT	19	/* TCBIND */
-#else
-#define PTEBASE_SHIFT	23	/* CONTEXT */
-#endif
-		.macro	get_saved_sp	/* SMP variation */
-#ifdef CONFIG_MIPS_MT_SMTC
-		mfc0	k0, CP0_TCBIND
-#else
-		MFC0	k0, CP0_CONTEXT
-#endif
-#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
-		lui	k1, %hi(kernelsp)
-#else
-		lui	k1, %highest(kernelsp)
-		daddiu	k1, %higher(kernelsp)
-		dsll	k1, 16
-		daddiu	k1, %hi(kernelsp)
-		dsll	k1, 16
-#endif
-		LONG_SRL	k0, PTEBASE_SHIFT
-		LONG_ADDU	k1, k0
-		LONG_L	k1, %lo(kernelsp)(k1)
-		.endm
-
-		.macro	set_saved_sp stackp temp temp2
-#ifdef CONFIG_MIPS_MT_SMTC
-		mfc0	\temp, CP0_TCBIND
-#else
-		MFC0	\temp, CP0_CONTEXT
-#endif
-		LONG_SRL	\temp, PTEBASE_SHIFT
-		LONG_S	\stackp, kernelsp(\temp)
-		.endm
-#else
-		.macro	get_saved_sp	/* Uniprocessor variation */
-#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
-		lui	k1, %hi(kernelsp)
-#else
-		lui	k1, %highest(kernelsp)
-		daddiu	k1, %higher(kernelsp)
-		dsll	k1, k1, 16
-		daddiu	k1, %hi(kernelsp)
-		dsll	k1, k1, 16
-#endif
-		LONG_L	k1, %lo(kernelsp)(k1)
-		.endm
-
-		.macro	set_saved_sp stackp temp temp2
-		LONG_S	\stackp, kernelsp
-		.endm
-#endif
-
-		.macro	SAVE_SOME
-		.set	push
-		.set	noat
-		.set	reorder
-		mfc0	k0, CP0_STATUS
-		sll	k0, 3		/* extract cu0 bit */
-		.set	noreorder
-		bltz	k0, 8f
-		 move	k1, sp
-		.set	reorder
-		/* Called from user mode, new stack. */
-		get_saved_sp
-#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
-8:		move	k0, sp
-		PTR_SUBU sp, k1, PT_SIZE
-#else
-		.set	at=k0
-8:		PTR_SUBU k1, PT_SIZE
-		.set	noat
-		move	k0, sp
-		move	sp, k1
-#endif
-		LONG_S	k0, PT_R29(sp)
-		LONG_S	$3, PT_R3(sp)
-		/*
-		 * You might think that you don't need to save $0,
-		 * but the FPU emulator and gdb remote debug stub
-		 * need it to operate correctly
-		 */
-		LONG_S	$0, PT_R0(sp)
-		mfc0	v1, CP0_STATUS
-		LONG_S	$2, PT_R2(sp)
-		LONG_S	v1, PT_STATUS(sp)
-#ifdef CONFIG_MIPS_MT_SMTC
-		/*
-		 * Ideally, these instructions would be shuffled in
-		 * to cover the pipeline delay.
-		 */
-		.set	mips32
-		mfc0	v1, CP0_TCSTATUS
-		.set	mips0
-		LONG_S	v1, PT_TCSTATUS(sp)
-#endif /* CONFIG_MIPS_MT_SMTC */
-		LONG_S	$4, PT_R4(sp)
-		mfc0	v1, CP0_CAUSE
-		LONG_S	$5, PT_R5(sp)
-		LONG_S	v1, PT_CAUSE(sp)
-		LONG_S	$6, PT_R6(sp)
-		MFC0	v1, CP0_EPC
-		LONG_S	$7, PT_R7(sp)
-#ifdef CONFIG_64BIT
-		LONG_S	$8, PT_R8(sp)
-		LONG_S	$9, PT_R9(sp)
-#endif
-		LONG_S	v1, PT_EPC(sp)
-		LONG_S	$25, PT_R25(sp)
-		LONG_S	$28, PT_R28(sp)
-		LONG_S	$31, PT_R31(sp)
-		ori	$28, sp, _THREAD_MASK
-		xori	$28, _THREAD_MASK
-		.set	pop
-		.endm
-
-		.macro	SAVE_ALL
-		SAVE_SOME
-		SAVE_AT
-		SAVE_TEMP
-		SAVE_STATIC
-		.endm
-
-		.macro	RESTORE_AT
-		.set	push
-		.set	noat
-		LONG_L	$1,  PT_R1(sp)
-		.set	pop
-		.endm
-
-		.macro	RESTORE_TEMP
-#ifdef CONFIG_CPU_HAS_SMARTMIPS
-		LONG_L	$24, PT_ACX(sp)
-		mtlhx	$24
-		LONG_L	$24, PT_HI(sp)
-		mtlhx	$24
-		LONG_L	$24, PT_LO(sp)
-		mtlhx	$24
-#else
-		LONG_L	$24, PT_LO(sp)
-		mtlo	$24
-		LONG_L	$24, PT_HI(sp)
-		mthi	$24
-#endif
-#ifdef CONFIG_32BIT
-		LONG_L	$8, PT_R8(sp)
-		LONG_L	$9, PT_R9(sp)
-#endif
-		LONG_L	$10, PT_R10(sp)
-		LONG_L	$11, PT_R11(sp)
-		LONG_L	$12, PT_R12(sp)
-		LONG_L	$13, PT_R13(sp)
-		LONG_L	$14, PT_R14(sp)
-		LONG_L	$15, PT_R15(sp)
-		LONG_L	$24, PT_R24(sp)
-		.endm
-
-		.macro	RESTORE_STATIC
-		LONG_L	$16, PT_R16(sp)
-		LONG_L	$17, PT_R17(sp)
-		LONG_L	$18, PT_R18(sp)
-		LONG_L	$19, PT_R19(sp)
-		LONG_L	$20, PT_R20(sp)
-		LONG_L	$21, PT_R21(sp)
-		LONG_L	$22, PT_R22(sp)
-		LONG_L	$23, PT_R23(sp)
-		LONG_L	$30, PT_R30(sp)
-		.endm
-
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
-
-		.macro	RESTORE_SOME
-		.set	push
-		.set	reorder
-		.set	noat
-		mfc0	a0, CP0_STATUS
-		li	v1, 0xff00
-		ori	a0, STATMASK
-		xori	a0, STATMASK
-		mtc0	a0, CP0_STATUS
-		and	a0, v1
-		LONG_L	v0, PT_STATUS(sp)
-		nor	v1, $0, v1
-		and	v0, v1
-		or	v0, a0
-		mtc0	v0, CP0_STATUS
-		LONG_L	$31, PT_R31(sp)
-		LONG_L	$28, PT_R28(sp)
-		LONG_L	$25, PT_R25(sp)
-		LONG_L	$7,  PT_R7(sp)
-		LONG_L	$6,  PT_R6(sp)
-		LONG_L	$5,  PT_R5(sp)
-		LONG_L	$4,  PT_R4(sp)
-		LONG_L	$3,  PT_R3(sp)
-		LONG_L	$2,  PT_R2(sp)
-		.set	pop
-		.endm
-
-		.macro	RESTORE_SP_AND_RET
-		.set	push
-		.set	noreorder
-		LONG_L	k0, PT_EPC(sp)
-		LONG_L	sp, PT_R29(sp)
-		jr	k0
-		 rfe
-		.set	pop
-		.endm
-
-#else
-		.macro	RESTORE_SOME
-		.set	push
-		.set	reorder
-		.set	noat
-#ifdef CONFIG_MIPS_MT_SMTC
-		.set	mips32r2
-		/*
-		 * We need to make sure the read-modify-write
-		 * of Status below isn't perturbed by an interrupt
-		 * or cross-TC access, so we need to do at least a DMT,
-		 * protected by an interrupt-inhibit. But setting IXMT
-		 * also creates a few-cycle window where an IPI could
-		 * be queued and not be detected before potentially
-		 * returning to a WAIT or user-mode loop. It must be
-		 * replayed.
-		 *
-		 * We're in the middle of a context switch, and
-		 * we can't dispatch it directly without trashing
-		 * some registers, so we'll try to detect this unlikely
-		 * case and program a software interrupt in the VPE,
-		 * as would be done for a cross-VPE IPI.  To accomodate
-		 * the handling of that case, we're doing a DVPE instead
-		 * of just a DMT here to protect against other threads.
-		 * This is a lot of cruft to cover a tiny window.
-		 * If you can find a better design, implement it!
-		 *
-		 */
-		mfc0	v0, CP0_TCSTATUS
-		ori	v0, TCSTATUS_IXMT
-		mtc0	v0, CP0_TCSTATUS
-		_ehb
-		DVPE	5				# dvpe a1
-		jal	mips_ihb
-#endif /* CONFIG_MIPS_MT_SMTC */
-		mfc0	a0, CP0_STATUS
-		ori	a0, STATMASK
-		xori	a0, STATMASK
-		mtc0	a0, CP0_STATUS
-		li	v1, 0xff00
-		and	a0, v1
-		LONG_L	v0, PT_STATUS(sp)
-		nor	v1, $0, v1
-		and	v0, v1
-		or	v0, a0
-		mtc0	v0, CP0_STATUS
-#ifdef CONFIG_MIPS_MT_SMTC
-/*
- * Only after EXL/ERL have been restored to status can we
- * restore TCStatus.IXMT.
- */
-		LONG_L	v1, PT_TCSTATUS(sp)
-		_ehb
-		mfc0	a0, CP0_TCSTATUS
-		andi	v1, TCSTATUS_IXMT
-		bnez	v1, 0f
-
-/*
- * We'd like to detect any IPIs queued in the tiny window
- * above and request an software interrupt to service them
- * when we ERET.
- *
- * Computing the offset into the IPIQ array of the executing
- * TC's IPI queue in-line would be tedious.  We use part of
- * the TCContext register to hold 16 bits of offset that we
- * can add in-line to find the queue head.
- */
-		mfc0	v0, CP0_TCCONTEXT
-		la	a2, IPIQ
-		srl	v0, v0, 16
-		addu	a2, a2, v0
-		LONG_L	v0, 0(a2)
-		beqz	v0, 0f
-/*
- * If we have a queue, provoke dispatch within the VPE by setting C_SW1
- */
-		mfc0	v0, CP0_CAUSE
-		ori	v0, v0, C_SW1
-		mtc0	v0, CP0_CAUSE
-0:
-		/*
-		 * This test should really never branch but
-		 * let's be prudent here.  Having atomized
-		 * the shared register modifications, we can
-		 * now EVPE, and must do so before interrupts
-		 * are potentially re-enabled.
-		 */
-		andi	a1, a1, MVPCONTROL_EVP
-		beqz	a1, 1f
-		evpe
-1:
-		/* We know that TCStatua.IXMT should be set from above */
-		xori	a0, a0, TCSTATUS_IXMT
-		or	a0, a0, v1
-		mtc0	a0, CP0_TCSTATUS
-		_ehb
-
-		.set	mips0
-#endif /* CONFIG_MIPS_MT_SMTC */
-		LONG_L	v1, PT_EPC(sp)
-		MTC0	v1, CP0_EPC
-		LONG_L	$31, PT_R31(sp)
-		LONG_L	$28, PT_R28(sp)
-		LONG_L	$25, PT_R25(sp)
-#ifdef CONFIG_64BIT
-		LONG_L	$8, PT_R8(sp)
-		LONG_L	$9, PT_R9(sp)
-#endif
-		LONG_L	$7,  PT_R7(sp)
-		LONG_L	$6,  PT_R6(sp)
-		LONG_L	$5,  PT_R5(sp)
-		LONG_L	$4,  PT_R4(sp)
-		LONG_L	$3,  PT_R3(sp)
-		LONG_L	$2,  PT_R2(sp)
-		.set	pop
-		.endm
-
-		.macro	RESTORE_SP_AND_RET
-		LONG_L	sp, PT_R29(sp)
-		.set	mips3
-		eret
-		.set	mips0
-		.endm
-
-#endif
-
-		.macro	RESTORE_SP
-		LONG_L	sp, PT_R29(sp)
-		.endm
-
-		.macro	RESTORE_ALL
-		RESTORE_TEMP
-		RESTORE_STATIC
-		RESTORE_AT
-		RESTORE_SOME
-		RESTORE_SP
-		.endm
-
-		.macro	RESTORE_ALL_AND_RET
-		RESTORE_TEMP
-		RESTORE_STATIC
-		RESTORE_AT
-		RESTORE_SOME
-		RESTORE_SP_AND_RET
-		.endm
-
-/*
- * Move to kernel mode and disable interrupts.
- * Set cp0 enable bit as sign that we're running on the kernel stack
- */
-		.macro	CLI
-#if !defined(CONFIG_MIPS_MT_SMTC)
-		mfc0	t0, CP0_STATUS
-		li	t1, ST0_CU0 | STATMASK
-		or	t0, t1
-		xori	t0, STATMASK
-		mtc0	t0, CP0_STATUS
-#else /* CONFIG_MIPS_MT_SMTC */
-		/*
-		 * For SMTC, we need to set privilege
-		 * and disable interrupts only for the
-		 * current TC, using the TCStatus register.
-		 */
-		mfc0	t0, CP0_TCSTATUS
-		/* Fortunately CU 0 is in the same place in both registers */
-		/* Set TCU0, TMX, TKSU (for later inversion) and IXMT */
-		li	t1, ST0_CU0 | 0x08001c00
-		or	t0, t1
-		/* Clear TKSU, leave IXMT */
-		xori	t0, 0x00001800
-		mtc0	t0, CP0_TCSTATUS
-		_ehb
-		/* We need to leave the global IE bit set, but clear EXL...*/
-		mfc0	t0, CP0_STATUS
-		ori	t0, ST0_EXL | ST0_ERL
-		xori	t0, ST0_EXL | ST0_ERL
-		mtc0	t0, CP0_STATUS
-#endif /* CONFIG_MIPS_MT_SMTC */
-		irq_disable_hazard
-		.endm
-
-/*
- * Move to kernel mode and enable interrupts.
- * Set cp0 enable bit as sign that we're running on the kernel stack
- */
-		.macro	STI
-#if !defined(CONFIG_MIPS_MT_SMTC)
-		mfc0	t0, CP0_STATUS
-		li	t1, ST0_CU0 | STATMASK
-		or	t0, t1
-		xori	t0, STATMASK & ~1
-		mtc0	t0, CP0_STATUS
-#else /* CONFIG_MIPS_MT_SMTC */
-		/*
-		 * For SMTC, we need to set privilege
-		 * and enable interrupts only for the
-		 * current TC, using the TCStatus register.
-		 */
-		_ehb
-		mfc0	t0, CP0_TCSTATUS
-		/* Fortunately CU 0 is in the same place in both registers */
-		/* Set TCU0, TKSU (for later inversion) and IXMT */
-		li	t1, ST0_CU0 | 0x08001c00
-		or	t0, t1
-		/* Clear TKSU *and* IXMT */
-		xori	t0, 0x00001c00
-		mtc0	t0, CP0_TCSTATUS
-		_ehb
-		/* We need to leave the global IE bit set, but clear EXL...*/
-		mfc0	t0, CP0_STATUS
-		ori	t0, ST0_EXL
-		xori	t0, ST0_EXL
-		mtc0	t0, CP0_STATUS
-		/* irq_enable_hazard below should expand to EHB for 24K/34K cpus */
-#endif /* CONFIG_MIPS_MT_SMTC */
-		irq_enable_hazard
-		.endm
-
-/*
- * Just move to kernel mode and leave interrupts as they are.  Note
- * for the R3000 this means copying the previous enable from IEp.
- * Set cp0 enable bit as sign that we're running on the kernel stack
- */
-		.macro	KMODE
-#ifdef CONFIG_MIPS_MT_SMTC
-		/*
-		 * This gets baroque in SMTC.  We want to
-		 * protect the non-atomic clearing of EXL
-		 * with DMT/EMT, but we don't want to take
-		 * an interrupt while DMT is still in effect.
-		 */
-
-		/* KMODE gets invoked from both reorder and noreorder code */
-		.set	push
-		.set	mips32r2
-		.set	noreorder
-		mfc0	v0, CP0_TCSTATUS
-		andi	v1, v0, TCSTATUS_IXMT
-		ori	v0, TCSTATUS_IXMT
-		mtc0	v0, CP0_TCSTATUS
-		_ehb
-		DMT	2				# dmt	v0
-		/*
-		 * We don't know a priori if ra is "live"
-		 */
-		move	t0, ra
-		jal	mips_ihb
-		nop	/* delay slot */
-		move	ra, t0
-#endif /* CONFIG_MIPS_MT_SMTC */
-		mfc0	t0, CP0_STATUS
-		li	t1, ST0_CU0 | (STATMASK & ~1)
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
-		andi	t2, t0, ST0_IEP
-		srl	t2, 2
-		or	t0, t2
-#endif
-		or	t0, t1
-		xori	t0, STATMASK & ~1
-		mtc0	t0, CP0_STATUS
-#ifdef CONFIG_MIPS_MT_SMTC
-		_ehb
-		andi	v0, v0, VPECONTROL_TE
-		beqz	v0, 2f
-		nop	/* delay slot */
-		emt
-2:
-		mfc0	v0, CP0_TCSTATUS
-		/* Clear IXMT, then OR in previous value */
-		ori	v0, TCSTATUS_IXMT
-		xori	v0, TCSTATUS_IXMT
-		or	v0, v1, v0
-		mtc0	v0, CP0_TCSTATUS
-		/*
-		 * irq_disable_hazard below should expand to EHB
-		 * on 24K/34K CPUS
-		 */
-		.set pop
-#endif /* CONFIG_MIPS_MT_SMTC */
-		irq_disable_hazard
-		.endm
-
-#endif /* _ASM_STACKFRAME_H */