mipsregs.h 51.7 KB
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/*
 * 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, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle
 * Copyright (C) 2000 Silicon Graphics, Inc.
 * Modified for further R[236]000 support by Paul M. Antoine, 1996.
 * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
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 * Copyright (C) 2000, 07 MIPS Technologies, Inc.
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 * Copyright (C) 2003, 2004  Maciej W. Rozycki
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 */
#ifndef _ASM_MIPSREGS_H
#define _ASM_MIPSREGS_H

#include <linux/linkage.h>
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#include <linux/types.h>
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#include <asm/hazards.h>
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#include <asm/war.h>
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/*
 * The following macros are especially useful for __asm__
 * inline assembler.
 */
#ifndef __STR
#define __STR(x) #x
#endif
#ifndef STR
#define STR(x) __STR(x)
#endif

/*
 *  Configure language
 */
#ifdef __ASSEMBLY__
#define _ULCAST_
#else
#define _ULCAST_ (unsigned long)
#endif

/*
 * Coprocessor 0 register names
 */
#define CP0_INDEX $0
#define CP0_RANDOM $1
#define CP0_ENTRYLO0 $2
#define CP0_ENTRYLO1 $3
#define CP0_CONF $3
#define CP0_CONTEXT $4
#define CP0_PAGEMASK $5
#define CP0_WIRED $6
#define CP0_INFO $7
#define CP0_BADVADDR $8
#define CP0_COUNT $9
#define CP0_ENTRYHI $10
#define CP0_COMPARE $11
#define CP0_STATUS $12
#define CP0_CAUSE $13
#define CP0_EPC $14
#define CP0_PRID $15
#define CP0_CONFIG $16
#define CP0_LLADDR $17
#define CP0_WATCHLO $18
#define CP0_WATCHHI $19
#define CP0_XCONTEXT $20
#define CP0_FRAMEMASK $21
#define CP0_DIAGNOSTIC $22
#define CP0_DEBUG $23
#define CP0_DEPC $24
#define CP0_PERFORMANCE $25
#define CP0_ECC $26
#define CP0_CACHEERR $27
#define CP0_TAGLO $28
#define CP0_TAGHI $29
#define CP0_ERROREPC $30
#define CP0_DESAVE $31

/*
 * R4640/R4650 cp0 register names.  These registers are listed
 * here only for completeness; without MMU these CPUs are not useable
 * by Linux.  A future ELKS port might take make Linux run on them
 * though ...
 */
#define CP0_IBASE $0
#define CP0_IBOUND $1
#define CP0_DBASE $2
#define CP0_DBOUND $3
#define CP0_CALG $17
#define CP0_IWATCH $18
#define CP0_DWATCH $19

/*
 * Coprocessor 0 Set 1 register names
 */
#define CP0_S1_DERRADDR0  $26
#define CP0_S1_DERRADDR1  $27
#define CP0_S1_INTCONTROL $20

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/*
 * Coprocessor 0 Set 2 register names
 */
#define CP0_S2_SRSCTL	  $12	/* MIPSR2 */

/*
 * Coprocessor 0 Set 3 register names
 */
#define CP0_S3_SRSMAP	  $12	/* MIPSR2 */

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/*
 *  TX39 Series
 */
#define CP0_TX39_CACHE	$7

/*
 * Coprocessor 1 (FPU) register names
 */
#define CP1_REVISION   $0
#define CP1_STATUS     $31

/*
 * FPU Status Register Values
 */
/*
 * Status Register Values
 */

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#define FPU_CSR_FLUSH	0x01000000	/* flush denormalised results to 0 */
#define FPU_CSR_COND	0x00800000	/* $fcc0 */
#define FPU_CSR_COND0	0x00800000	/* $fcc0 */
#define FPU_CSR_COND1	0x02000000	/* $fcc1 */
#define FPU_CSR_COND2	0x04000000	/* $fcc2 */
#define FPU_CSR_COND3	0x08000000	/* $fcc3 */
#define FPU_CSR_COND4	0x10000000	/* $fcc4 */
#define FPU_CSR_COND5	0x20000000	/* $fcc5 */
#define FPU_CSR_COND6	0x40000000	/* $fcc6 */
#define FPU_CSR_COND7	0x80000000	/* $fcc7 */
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/*
 * Bits 18 - 20 of the FPU Status Register will be read as 0,
 * and should be written as zero.
 */
#define FPU_CSR_RSVD	0x001c0000

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/*
 * X the exception cause indicator
 * E the exception enable
 * S the sticky/flag bit
*/
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#define FPU_CSR_ALL_X	0x0003f000
#define FPU_CSR_UNI_X	0x00020000
#define FPU_CSR_INV_X	0x00010000
#define FPU_CSR_DIV_X	0x00008000
#define FPU_CSR_OVF_X	0x00004000
#define FPU_CSR_UDF_X	0x00002000
#define FPU_CSR_INE_X	0x00001000

#define FPU_CSR_ALL_E	0x00000f80
#define FPU_CSR_INV_E	0x00000800
#define FPU_CSR_DIV_E	0x00000400
#define FPU_CSR_OVF_E	0x00000200
#define FPU_CSR_UDF_E	0x00000100
#define FPU_CSR_INE_E	0x00000080

#define FPU_CSR_ALL_S	0x0000007c
#define FPU_CSR_INV_S	0x00000040
#define FPU_CSR_DIV_S	0x00000020
#define FPU_CSR_OVF_S	0x00000010
#define FPU_CSR_UDF_S	0x00000008
#define FPU_CSR_INE_S	0x00000004
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/* Bits 0 and 1 of FPU Status Register specify the rounding mode */
#define FPU_CSR_RM	0x00000003
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#define FPU_CSR_RN	0x0	/* nearest */
#define FPU_CSR_RZ	0x1	/* towards zero */
#define FPU_CSR_RU	0x2	/* towards +Infinity */
#define FPU_CSR_RD	0x3	/* towards -Infinity */
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/*
 * Values for PageMask register
 */
#ifdef CONFIG_CPU_VR41XX

/* Why doesn't stupidity hurt ... */

#define PM_1K		0x00000000
#define PM_4K		0x00001800
#define PM_16K		0x00007800
#define PM_64K		0x0001f800
#define PM_256K		0x0007f800

#else

#define PM_4K		0x00000000
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#define PM_8K		0x00002000
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#define PM_16K		0x00006000
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#define PM_32K		0x0000e000
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#define PM_64K		0x0001e000
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#define PM_128K		0x0003e000
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#define PM_256K		0x0007e000
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#define PM_512K		0x000fe000
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#define PM_1M		0x001fe000
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#define PM_2M		0x003fe000
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#define PM_4M		0x007fe000
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#define PM_8M		0x00ffe000
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#define PM_16M		0x01ffe000
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#define PM_32M		0x03ffe000
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#define PM_64M		0x07ffe000
#define PM_256M		0x1fffe000
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#define PM_1G		0x7fffe000
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#endif

/*
 * Default page size for a given kernel configuration
 */
#ifdef CONFIG_PAGE_SIZE_4KB
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#define PM_DEFAULT_MASK PM_4K
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#elif defined(CONFIG_PAGE_SIZE_8KB)
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#define PM_DEFAULT_MASK PM_8K
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#elif defined(CONFIG_PAGE_SIZE_16KB)
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#define PM_DEFAULT_MASK PM_16K
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#elif defined(CONFIG_PAGE_SIZE_32KB)
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#define PM_DEFAULT_MASK PM_32K
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#elif defined(CONFIG_PAGE_SIZE_64KB)
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#define PM_DEFAULT_MASK PM_64K
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#else
#error Bad page size configuration!
#endif

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/*
 * Default huge tlb size for a given kernel configuration
 */
#ifdef CONFIG_PAGE_SIZE_4KB
#define PM_HUGE_MASK	PM_1M
#elif defined(CONFIG_PAGE_SIZE_8KB)
#define PM_HUGE_MASK	PM_4M
#elif defined(CONFIG_PAGE_SIZE_16KB)
#define PM_HUGE_MASK	PM_16M
#elif defined(CONFIG_PAGE_SIZE_32KB)
#define PM_HUGE_MASK	PM_64M
#elif defined(CONFIG_PAGE_SIZE_64KB)
#define PM_HUGE_MASK	PM_256M
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#elif defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
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#error Bad page size configuration for hugetlbfs!
#endif
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/*
 * Values used for computation of new tlb entries
 */
#define PL_4K		12
#define PL_16K		14
#define PL_64K		16
#define PL_256K		18
#define PL_1M		20
#define PL_4M		22
#define PL_16M		24
#define PL_64M		26
#define PL_256M		28

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/*
 * PageGrain bits
 */
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#define PG_RIE		(_ULCAST_(1) <<	 31)
#define PG_XIE		(_ULCAST_(1) <<	 30)
#define PG_ELPA		(_ULCAST_(1) <<	 29)
#define PG_ESP		(_ULCAST_(1) <<	 28)
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/*
 * R4x00 interrupt enable / cause bits
 */
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#define IE_SW0		(_ULCAST_(1) <<	 8)
#define IE_SW1		(_ULCAST_(1) <<	 9)
#define IE_IRQ0		(_ULCAST_(1) << 10)
#define IE_IRQ1		(_ULCAST_(1) << 11)
#define IE_IRQ2		(_ULCAST_(1) << 12)
#define IE_IRQ3		(_ULCAST_(1) << 13)
#define IE_IRQ4		(_ULCAST_(1) << 14)
#define IE_IRQ5		(_ULCAST_(1) << 15)
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/*
 * R4x00 interrupt cause bits
 */
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#define C_SW0		(_ULCAST_(1) <<	 8)
#define C_SW1		(_ULCAST_(1) <<	 9)
#define C_IRQ0		(_ULCAST_(1) << 10)
#define C_IRQ1		(_ULCAST_(1) << 11)
#define C_IRQ2		(_ULCAST_(1) << 12)
#define C_IRQ3		(_ULCAST_(1) << 13)
#define C_IRQ4		(_ULCAST_(1) << 14)
#define C_IRQ5		(_ULCAST_(1) << 15)
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/*
 * Bitfields in the R4xx0 cp0 status register
 */
#define ST0_IE			0x00000001
#define ST0_EXL			0x00000002
#define ST0_ERL			0x00000004
#define ST0_KSU			0x00000018
#  define KSU_USER		0x00000010
#  define KSU_SUPERVISOR	0x00000008
#  define KSU_KERNEL		0x00000000
#define ST0_UX			0x00000020
#define ST0_SX			0x00000040
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#define ST0_KX			0x00000080
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#define ST0_DE			0x00010000
#define ST0_CE			0x00020000

/*
 * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
 * cacheops in userspace.  This bit exists only on RM7000 and RM9000
 * processors.
 */
#define ST0_CO			0x08000000

/*
 * Bitfields in the R[23]000 cp0 status register.
 */
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#define ST0_IEC			0x00000001
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#define ST0_KUC			0x00000002
#define ST0_IEP			0x00000004
#define ST0_KUP			0x00000008
#define ST0_IEO			0x00000010
#define ST0_KUO			0x00000020
/* bits 6 & 7 are reserved on R[23]000 */
#define ST0_ISC			0x00010000
#define ST0_SWC			0x00020000
#define ST0_CM			0x00080000

/*
 * Bits specific to the R4640/R4650
 */
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#define ST0_UM			(_ULCAST_(1) <<	 4)
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#define ST0_IL			(_ULCAST_(1) << 23)
#define ST0_DL			(_ULCAST_(1) << 24)

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/*
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 * Enable the MIPS MDMX and DSP ASEs
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 */
#define ST0_MX			0x01000000

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/*
 * Bitfields in the TX39 family CP0 Configuration Register 3
 */
#define TX39_CONF_ICS_SHIFT	19
#define TX39_CONF_ICS_MASK	0x00380000
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#define TX39_CONF_ICS_1KB	0x00000000
#define TX39_CONF_ICS_2KB	0x00080000
#define TX39_CONF_ICS_4KB	0x00100000
#define TX39_CONF_ICS_8KB	0x00180000
#define TX39_CONF_ICS_16KB	0x00200000
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#define TX39_CONF_DCS_SHIFT	16
#define TX39_CONF_DCS_MASK	0x00070000
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#define TX39_CONF_DCS_1KB	0x00000000
#define TX39_CONF_DCS_2KB	0x00010000
#define TX39_CONF_DCS_4KB	0x00020000
#define TX39_CONF_DCS_8KB	0x00030000
#define TX39_CONF_DCS_16KB	0x00040000

#define TX39_CONF_CWFON		0x00004000
#define TX39_CONF_WBON		0x00002000
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#define TX39_CONF_RF_SHIFT	10
#define TX39_CONF_RF_MASK	0x00000c00
#define TX39_CONF_DOZE		0x00000200
#define TX39_CONF_HALT		0x00000100
#define TX39_CONF_LOCK		0x00000080
#define TX39_CONF_ICE		0x00000020
#define TX39_CONF_DCE		0x00000010
#define TX39_CONF_IRSIZE_SHIFT	2
#define TX39_CONF_IRSIZE_MASK	0x0000000c
#define TX39_CONF_DRSIZE_SHIFT	0
#define TX39_CONF_DRSIZE_MASK	0x00000003

/*
 * Status register bits available in all MIPS CPUs.
 */
#define ST0_IM			0x0000ff00
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#define	 STATUSB_IP0		8
#define	 STATUSF_IP0		(_ULCAST_(1) <<	 8)
#define	 STATUSB_IP1		9
#define	 STATUSF_IP1		(_ULCAST_(1) <<	 9)
#define	 STATUSB_IP2		10
#define	 STATUSF_IP2		(_ULCAST_(1) << 10)
#define	 STATUSB_IP3		11
#define	 STATUSF_IP3		(_ULCAST_(1) << 11)
#define	 STATUSB_IP4		12
#define	 STATUSF_IP4		(_ULCAST_(1) << 12)
#define	 STATUSB_IP5		13
#define	 STATUSF_IP5		(_ULCAST_(1) << 13)
#define	 STATUSB_IP6		14
#define	 STATUSF_IP6		(_ULCAST_(1) << 14)
#define	 STATUSB_IP7		15
#define	 STATUSF_IP7		(_ULCAST_(1) << 15)
#define	 STATUSB_IP8		0
#define	 STATUSF_IP8		(_ULCAST_(1) <<	 0)
#define	 STATUSB_IP9		1
#define	 STATUSF_IP9		(_ULCAST_(1) <<	 1)
#define	 STATUSB_IP10		2
#define	 STATUSF_IP10		(_ULCAST_(1) <<	 2)
#define	 STATUSB_IP11		3
#define	 STATUSF_IP11		(_ULCAST_(1) <<	 3)
#define	 STATUSB_IP12		4
#define	 STATUSF_IP12		(_ULCAST_(1) <<	 4)
#define	 STATUSB_IP13		5
#define	 STATUSF_IP13		(_ULCAST_(1) <<	 5)
#define	 STATUSB_IP14		6
#define	 STATUSF_IP14		(_ULCAST_(1) <<	 6)
#define	 STATUSB_IP15		7
#define	 STATUSF_IP15		(_ULCAST_(1) <<	 7)
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#define ST0_CH			0x00040000
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#define ST0_NMI			0x00080000
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#define ST0_SR			0x00100000
#define ST0_TS			0x00200000
#define ST0_BEV			0x00400000
#define ST0_RE			0x02000000
#define ST0_FR			0x04000000
#define ST0_CU			0xf0000000
#define ST0_CU0			0x10000000
#define ST0_CU1			0x20000000
#define ST0_CU2			0x40000000
#define ST0_CU3			0x80000000
#define ST0_XX			0x80000000	/* MIPS IV naming */

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/*
 * Bitfields and bit numbers in the coprocessor 0 IntCtl register. (MIPSR2)
 *
 * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
 */
#define INTCTLB_IPPCI		26
#define INTCTLF_IPPCI		(_ULCAST_(7) << INTCTLB_IPPCI)
#define INTCTLB_IPTI		29
#define INTCTLF_IPTI		(_ULCAST_(7) << INTCTLB_IPTI)

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/*
 * Bitfields and bit numbers in the coprocessor 0 cause register.
 *
 * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
 */
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#define	 CAUSEB_EXCCODE		2
#define	 CAUSEF_EXCCODE		(_ULCAST_(31)  <<  2)
#define	 CAUSEB_IP		8
#define	 CAUSEF_IP		(_ULCAST_(255) <<  8)
#define	 CAUSEB_IP0		8
#define	 CAUSEF_IP0		(_ULCAST_(1)   <<  8)
#define	 CAUSEB_IP1		9
#define	 CAUSEF_IP1		(_ULCAST_(1)   <<  9)
#define	 CAUSEB_IP2		10
#define	 CAUSEF_IP2		(_ULCAST_(1)   << 10)
#define	 CAUSEB_IP3		11
#define	 CAUSEF_IP3		(_ULCAST_(1)   << 11)
#define	 CAUSEB_IP4		12
#define	 CAUSEF_IP4		(_ULCAST_(1)   << 12)
#define	 CAUSEB_IP5		13
#define	 CAUSEF_IP5		(_ULCAST_(1)   << 13)
#define	 CAUSEB_IP6		14
#define	 CAUSEF_IP6		(_ULCAST_(1)   << 14)
#define	 CAUSEB_IP7		15
#define	 CAUSEF_IP7		(_ULCAST_(1)   << 15)
#define	 CAUSEB_IV		23
#define	 CAUSEF_IV		(_ULCAST_(1)   << 23)
#define	 CAUSEB_PCI		26
#define	 CAUSEF_PCI		(_ULCAST_(1)   << 26)
#define	 CAUSEB_CE		28
#define	 CAUSEF_CE		(_ULCAST_(3)   << 28)
#define	 CAUSEB_TI		30
#define	 CAUSEF_TI		(_ULCAST_(1)   << 30)
#define	 CAUSEB_BD		31
#define	 CAUSEF_BD		(_ULCAST_(1)   << 31)
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/*
 * Bits in the coprocessor 0 config register.
 */
/* Generic bits.  */
#define CONF_CM_CACHABLE_NO_WA		0
#define CONF_CM_CACHABLE_WA		1
#define CONF_CM_UNCACHED		2
#define CONF_CM_CACHABLE_NONCOHERENT	3
#define CONF_CM_CACHABLE_CE		4
#define CONF_CM_CACHABLE_COW		5
#define CONF_CM_CACHABLE_CUW		6
#define CONF_CM_CACHABLE_ACCELERATED	7
#define CONF_CM_CMASK			7
#define CONF_BE			(_ULCAST_(1) << 15)

/* Bits common to various processors.  */
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#define CONF_CU			(_ULCAST_(1) <<	 3)
#define CONF_DB			(_ULCAST_(1) <<	 4)
#define CONF_IB			(_ULCAST_(1) <<	 5)
#define CONF_DC			(_ULCAST_(7) <<	 6)
#define CONF_IC			(_ULCAST_(7) <<	 9)
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#define CONF_EB			(_ULCAST_(1) << 13)
#define CONF_EM			(_ULCAST_(1) << 14)
#define CONF_SM			(_ULCAST_(1) << 16)
#define CONF_SC			(_ULCAST_(1) << 17)
#define CONF_EW			(_ULCAST_(3) << 18)
#define CONF_EP			(_ULCAST_(15)<< 24)
#define CONF_EC			(_ULCAST_(7) << 28)
#define CONF_CM			(_ULCAST_(1) << 31)

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/* Bits specific to the R4xx0.	*/
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#define R4K_CONF_SW		(_ULCAST_(1) << 20)
#define R4K_CONF_SS		(_ULCAST_(1) << 21)
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#define R4K_CONF_SB		(_ULCAST_(3) << 22)
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/* Bits specific to the R5000.	*/
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#define R5K_CONF_SE		(_ULCAST_(1) << 12)
#define R5K_CONF_SS		(_ULCAST_(3) << 20)

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/* Bits specific to the RM7000.	 */
#define RM7K_CONF_SE		(_ULCAST_(1) <<	 3)
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#define RM7K_CONF_TE		(_ULCAST_(1) << 12)
#define RM7K_CONF_CLK		(_ULCAST_(1) << 16)
#define RM7K_CONF_TC		(_ULCAST_(1) << 17)
#define RM7K_CONF_SI		(_ULCAST_(3) << 20)
#define RM7K_CONF_SC		(_ULCAST_(1) << 31)
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/* Bits specific to the R10000.	 */
#define R10K_CONF_DN		(_ULCAST_(3) <<	 3)
#define R10K_CONF_CT		(_ULCAST_(1) <<	 5)
#define R10K_CONF_PE		(_ULCAST_(1) <<	 6)
#define R10K_CONF_PM		(_ULCAST_(3) <<	 7)
#define R10K_CONF_EC		(_ULCAST_(15)<<	 9)
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#define R10K_CONF_SB		(_ULCAST_(1) << 13)
#define R10K_CONF_SK		(_ULCAST_(1) << 14)
#define R10K_CONF_SS		(_ULCAST_(7) << 16)
#define R10K_CONF_SC		(_ULCAST_(7) << 19)
#define R10K_CONF_DC		(_ULCAST_(7) << 26)
#define R10K_CONF_IC		(_ULCAST_(7) << 29)

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/* Bits specific to the VR41xx.	 */
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#define VR41_CONF_CS		(_ULCAST_(1) << 12)
533
#define VR41_CONF_P4K		(_ULCAST_(1) << 13)
534
#define VR41_CONF_BP		(_ULCAST_(1) << 16)
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#define VR41_CONF_M16		(_ULCAST_(1) << 20)
#define VR41_CONF_AD		(_ULCAST_(1) << 23)

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/* Bits specific to the R30xx.	*/
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#define R30XX_CONF_FDM		(_ULCAST_(1) << 19)
#define R30XX_CONF_REV		(_ULCAST_(1) << 22)
#define R30XX_CONF_AC		(_ULCAST_(1) << 23)
#define R30XX_CONF_RF		(_ULCAST_(1) << 24)
#define R30XX_CONF_HALT		(_ULCAST_(1) << 25)
#define R30XX_CONF_FPINT	(_ULCAST_(7) << 26)
#define R30XX_CONF_DBR		(_ULCAST_(1) << 29)
#define R30XX_CONF_SB		(_ULCAST_(1) << 30)
#define R30XX_CONF_LOCK		(_ULCAST_(1) << 31)

/* Bits specific to the TX49.  */
#define TX49_CONF_DC		(_ULCAST_(1) << 16)
#define TX49_CONF_IC		(_ULCAST_(1) << 17)  /* conflict with CONF_SC */
#define TX49_CONF_HALT		(_ULCAST_(1) << 18)
#define TX49_CONF_CWFON		(_ULCAST_(1) << 27)

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/* Bits specific to the MIPS32/64 PRA.	*/
#define MIPS_CONF_MT		(_ULCAST_(7) <<	 7)
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#define MIPS_CONF_AR		(_ULCAST_(7) << 10)
#define MIPS_CONF_AT		(_ULCAST_(3) << 13)
#define MIPS_CONF_M		(_ULCAST_(1) << 31)

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/*
 * Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above.
 */
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#define MIPS_CONF1_FP		(_ULCAST_(1) <<	 0)
#define MIPS_CONF1_EP		(_ULCAST_(1) <<	 1)
#define MIPS_CONF1_CA		(_ULCAST_(1) <<	 2)
#define MIPS_CONF1_WR		(_ULCAST_(1) <<	 3)
#define MIPS_CONF1_PC		(_ULCAST_(1) <<	 4)
#define MIPS_CONF1_MD		(_ULCAST_(1) <<	 5)
#define MIPS_CONF1_C2		(_ULCAST_(1) <<	 6)
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#define MIPS_CONF1_DA_SHF	7
#define MIPS_CONF1_DA_SZ	3
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#define MIPS_CONF1_DA		(_ULCAST_(7) <<	 7)
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#define MIPS_CONF1_DL_SHF	10
#define MIPS_CONF1_DL_SZ	3
576
#define MIPS_CONF1_DL		(_ULCAST_(7) << 10)
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#define MIPS_CONF1_DS_SHF	13
#define MIPS_CONF1_DS_SZ	3
579
#define MIPS_CONF1_DS		(_ULCAST_(7) << 13)
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#define MIPS_CONF1_IA_SHF	16
#define MIPS_CONF1_IA_SZ	3
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#define MIPS_CONF1_IA		(_ULCAST_(7) << 16)
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#define MIPS_CONF1_IL_SHF	19
#define MIPS_CONF1_IL_SZ	3
585
#define MIPS_CONF1_IL		(_ULCAST_(7) << 19)
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#define MIPS_CONF1_IS_SHF	22
#define MIPS_CONF1_IS_SZ	3
588
#define MIPS_CONF1_IS		(_ULCAST_(7) << 22)
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#define MIPS_CONF1_TLBS_SHIFT   (25)
#define MIPS_CONF1_TLBS_SIZE    (6)
#define MIPS_CONF1_TLBS         (_ULCAST_(63) << MIPS_CONF1_TLBS_SHIFT)
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#define MIPS_CONF2_SA		(_ULCAST_(15)<<	 0)
#define MIPS_CONF2_SL		(_ULCAST_(15)<<	 4)
#define MIPS_CONF2_SS		(_ULCAST_(15)<<	 8)
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#define MIPS_CONF2_SU		(_ULCAST_(15)<< 12)
#define MIPS_CONF2_TA		(_ULCAST_(15)<< 16)
#define MIPS_CONF2_TL		(_ULCAST_(15)<< 20)
#define MIPS_CONF2_TS		(_ULCAST_(15)<< 24)
#define MIPS_CONF2_TU		(_ULCAST_(7) << 28)

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#define MIPS_CONF3_TL		(_ULCAST_(1) <<	 0)
#define MIPS_CONF3_SM		(_ULCAST_(1) <<	 1)
#define MIPS_CONF3_MT		(_ULCAST_(1) <<	 2)
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#define MIPS_CONF3_CDMM		(_ULCAST_(1) <<	 3)
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#define MIPS_CONF3_SP		(_ULCAST_(1) <<	 4)
#define MIPS_CONF3_VINT		(_ULCAST_(1) <<	 5)
#define MIPS_CONF3_VEIC		(_ULCAST_(1) <<	 6)
#define MIPS_CONF3_LPA		(_ULCAST_(1) <<	 7)
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#define MIPS_CONF3_ITL		(_ULCAST_(1) <<	 8)
#define MIPS_CONF3_CTXTC	(_ULCAST_(1) <<	 9)
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#define MIPS_CONF3_DSP		(_ULCAST_(1) << 10)
613
#define MIPS_CONF3_DSP2P	(_ULCAST_(1) << 11)
614
#define MIPS_CONF3_RXI		(_ULCAST_(1) << 12)
615
#define MIPS_CONF3_ULRI		(_ULCAST_(1) << 13)
616
#define MIPS_CONF3_ISA		(_ULCAST_(3) << 14)
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#define MIPS_CONF3_ISA_OE	(_ULCAST_(1) << 16)
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#define MIPS_CONF3_MCU		(_ULCAST_(1) << 17)
#define MIPS_CONF3_MMAR		(_ULCAST_(7) << 18)
#define MIPS_CONF3_IPLW		(_ULCAST_(3) << 21)
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#define MIPS_CONF3_VZ		(_ULCAST_(1) << 23)
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#define MIPS_CONF3_PW		(_ULCAST_(1) << 24)
#define MIPS_CONF3_SC		(_ULCAST_(1) << 25)
#define MIPS_CONF3_BI		(_ULCAST_(1) << 26)
#define MIPS_CONF3_BP		(_ULCAST_(1) << 27)
#define MIPS_CONF3_MSA		(_ULCAST_(1) << 28)
#define MIPS_CONF3_CMGCR	(_ULCAST_(1) << 29)
#define MIPS_CONF3_BPG		(_ULCAST_(1) << 30)

#define MIPS_CONF4_MMUSIZEEXT_SHIFT	(0)
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#define MIPS_CONF4_MMUSIZEEXT	(_ULCAST_(255) << 0)
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#define MIPS_CONF4_FTLBSETS_SHIFT	(0)
#define MIPS_CONF4_FTLBSETS_SHIFT	(0)
#define MIPS_CONF4_FTLBSETS	(_ULCAST_(15) << MIPS_CONF4_FTLBSETS_SHIFT)
#define MIPS_CONF4_FTLBWAYS_SHIFT	(4)
#define MIPS_CONF4_FTLBWAYS	(_ULCAST_(15) << MIPS_CONF4_FTLBWAYS_SHIFT)
#define MIPS_CONF4_FTLBPAGESIZE_SHIFT	(8)
/* bits 10:8 in FTLB-only configurations */
#define MIPS_CONF4_FTLBPAGESIZE (_ULCAST_(7) << MIPS_CONF4_FTLBPAGESIZE_SHIFT)
/* bits 12:8 in VTLB-FTLB only configurations */
#define MIPS_CONF4_VFTLBPAGESIZE (_ULCAST_(31) << MIPS_CONF4_FTLBPAGESIZE_SHIFT)
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#define MIPS_CONF4_MMUEXTDEF	(_ULCAST_(3) << 14)
#define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14)
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#define MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT	(_ULCAST_(2) << 14)
#define MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT	(_ULCAST_(3) << 14)
#define MIPS_CONF4_KSCREXIST	(_ULCAST_(255) << 16)
#define MIPS_CONF4_VTLBSIZEEXT_SHIFT	(24)
#define MIPS_CONF4_VTLBSIZEEXT	(_ULCAST_(15) << MIPS_CONF4_VTLBSIZEEXT_SHIFT)
#define MIPS_CONF4_AE		(_ULCAST_(1) << 28)
#define MIPS_CONF4_IE		(_ULCAST_(3) << 29)
#define MIPS_CONF4_TLBINV	(_ULCAST_(2) << 29)
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653 654 655 656 657 658 659
#define MIPS_CONF5_NF		(_ULCAST_(1) << 0)
#define MIPS_CONF5_UFR		(_ULCAST_(1) << 2)
#define MIPS_CONF5_MSAEN	(_ULCAST_(1) << 27)
#define MIPS_CONF5_EVA		(_ULCAST_(1) << 28)
#define MIPS_CONF5_CV		(_ULCAST_(1) << 29)
#define MIPS_CONF5_K		(_ULCAST_(1) << 30)

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#define MIPS_CONF6_SYND		(_ULCAST_(1) << 13)
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/* proAptiv FTLB on/off bit */
#define MIPS_CONF6_FTLBEN	(_ULCAST_(1) << 15)
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#define MIPS_CONF7_WII		(_ULCAST_(1) << 31)

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#define MIPS_CONF7_RPS		(_ULCAST_(1) << 2)

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#define MIPS_CONF7_IAR		(_ULCAST_(1) << 10)
#define MIPS_CONF7_AR		(_ULCAST_(1) << 16)

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/*  EntryHI bit definition */
#define MIPS_ENTRYHI_EHINV	(_ULCAST_(1) << 10)
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/* CMGCRBase bit definitions */
#define MIPS_CMGCRB_BASE	11
#define MIPS_CMGCRF_BASE	(~_ULCAST_((1 << MIPS_CMGCRB_BASE) - 1))

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/*
 * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
 */
#define MIPS_FPIR_S		(_ULCAST_(1) << 16)
#define MIPS_FPIR_D		(_ULCAST_(1) << 17)
#define MIPS_FPIR_PS		(_ULCAST_(1) << 18)
#define MIPS_FPIR_3D		(_ULCAST_(1) << 19)
#define MIPS_FPIR_W		(_ULCAST_(1) << 20)
#define MIPS_FPIR_L		(_ULCAST_(1) << 21)
#define MIPS_FPIR_F64		(_ULCAST_(1) << 22)

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/*
 * Bits in the MIPS32 Memory Segmentation registers.
 */
#define MIPS_SEGCFG_PA_SHIFT	9
#define MIPS_SEGCFG_PA		(_ULCAST_(127) << MIPS_SEGCFG_PA_SHIFT)
#define MIPS_SEGCFG_AM_SHIFT	4
#define MIPS_SEGCFG_AM		(_ULCAST_(7) << MIPS_SEGCFG_AM_SHIFT)
#define MIPS_SEGCFG_EU_SHIFT	3
#define MIPS_SEGCFG_EU		(_ULCAST_(1) << MIPS_SEGCFG_EU_SHIFT)
#define MIPS_SEGCFG_C_SHIFT	0
#define MIPS_SEGCFG_C		(_ULCAST_(7) << MIPS_SEGCFG_C_SHIFT)

#define MIPS_SEGCFG_UUSK	_ULCAST_(7)
#define MIPS_SEGCFG_USK		_ULCAST_(5)
#define MIPS_SEGCFG_MUSUK	_ULCAST_(4)
#define MIPS_SEGCFG_MUSK	_ULCAST_(3)
#define MIPS_SEGCFG_MSK		_ULCAST_(2)
#define MIPS_SEGCFG_MK		_ULCAST_(1)
#define MIPS_SEGCFG_UK		_ULCAST_(0)

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#ifndef __ASSEMBLY__

711
/*
712
 * Macros for handling the ISA mode bit for MIPS16 and microMIPS.
713
 */
714 715
#if defined(CONFIG_SYS_SUPPORTS_MIPS16) || \
    defined(CONFIG_SYS_SUPPORTS_MICROMIPS)
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#define get_isa16_mode(x)		((x) & 0x1)
#define msk_isa16_mode(x)		((x) & ~0x1)
#define set_isa16_mode(x)		do { (x) |= 0x1; } while(0)
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#else
#define get_isa16_mode(x)		0
#define msk_isa16_mode(x)		(x)
#define set_isa16_mode(x)		do { } while(0)
#endif
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/*
 * microMIPS instructions can be 16-bit or 32-bit in length. This
 * returns a 1 if the instruction is 16-bit and a 0 if 32-bit.
 */
static inline int mm_insn_16bit(u16 insn)
{
	u16 opcode = (insn >> 10) & 0x7;

	return (opcode >= 1 && opcode <= 3) ? 1 : 0;
}

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/*
 * TLB Invalidate Flush
 */
static inline void tlbinvf(void)
{
	__asm__ __volatile__(
		".set push\n\t"
		".set noreorder\n\t"
		".word 0x42000004\n\t" /* tlbinvf */
		".set pop");
}


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/*
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 * Functions to access the R10000 performance counters.	 These are basically
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 * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit
 * performance counter number encoded into bits 1 ... 5 of the instruction.
 * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware
 * disassembler these will look like an access to sel 0 or 1.
 */
#define read_r10k_perf_cntr(counter)				\
({								\
	unsigned int __res;					\
	__asm__ __volatile__(					\
	"mfpc\t%0, %1"						\
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	: "=r" (__res)						\
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	: "i" (counter));					\
								\
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	__res;							\
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})

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#define write_r10k_perf_cntr(counter,val)			\
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do {								\
	__asm__ __volatile__(					\
	"mtpc\t%0, %1"						\
	:							\
	: "r" (val), "i" (counter));				\
} while (0)

#define read_r10k_perf_event(counter)				\
({								\
	unsigned int __res;					\
	__asm__ __volatile__(					\
	"mfps\t%0, %1"						\
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	: "=r" (__res)						\
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	: "i" (counter));					\
								\
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	__res;							\
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})

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#define write_r10k_perf_cntl(counter,val)			\
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do {								\
	__asm__ __volatile__(					\
	"mtps\t%0, %1"						\
	:							\
	: "r" (val), "i" (counter));				\
} while (0)


/*
 * Macros to access the system control coprocessor
 */

#define __read_32bit_c0_register(source, sel)				\
({ int __res;								\
	if (sel == 0)							\
		__asm__ __volatile__(					\
			"mfc0\t%0, " #source "\n\t"			\
			: "=r" (__res));				\
	else								\
		__asm__ __volatile__(					\
			".set\tmips32\n\t"				\
			"mfc0\t%0, " #source ", " #sel "\n\t"		\
			".set\tmips0\n\t"				\
			: "=r" (__res));				\
	__res;								\
})

#define __read_64bit_c0_register(source, sel)				\
({ unsigned long long __res;						\
	if (sizeof(unsigned long) == 4)					\
		__res = __read_64bit_c0_split(source, sel);		\
	else if (sel == 0)						\
		__asm__ __volatile__(					\
			".set\tmips3\n\t"				\
			"dmfc0\t%0, " #source "\n\t"			\
			".set\tmips0"					\
			: "=r" (__res));				\
	else								\
		__asm__ __volatile__(					\
			".set\tmips64\n\t"				\
			"dmfc0\t%0, " #source ", " #sel "\n\t"		\
			".set\tmips0"					\
			: "=r" (__res));				\
	__res;								\
})

#define __write_32bit_c0_register(register, sel, value)			\
do {									\
	if (sel == 0)							\
		__asm__ __volatile__(					\
			"mtc0\t%z0, " #register "\n\t"			\
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			: : "Jr" ((unsigned int)(value)));		\
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	else								\
		__asm__ __volatile__(					\
			".set\tmips32\n\t"				\
			"mtc0\t%z0, " #register ", " #sel "\n\t"	\
			".set\tmips0"					\
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			: : "Jr" ((unsigned int)(value)));		\
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} while (0)

#define __write_64bit_c0_register(register, sel, value)			\
do {									\
	if (sizeof(unsigned long) == 4)					\
		__write_64bit_c0_split(register, sel, value);		\
	else if (sel == 0)						\
		__asm__ __volatile__(					\
			".set\tmips3\n\t"				\
			"dmtc0\t%z0, " #register "\n\t"			\
			".set\tmips0"					\
			: : "Jr" (value));				\
	else								\
		__asm__ __volatile__(					\
			".set\tmips64\n\t"				\
			"dmtc0\t%z0, " #register ", " #sel "\n\t"	\
			".set\tmips0"					\
			: : "Jr" (value));				\
} while (0)

#define __read_ulong_c0_register(reg, sel)				\
	((sizeof(unsigned long) == 4) ?					\
	(unsigned long) __read_32bit_c0_register(reg, sel) :		\
	(unsigned long) __read_64bit_c0_register(reg, sel))

#define __write_ulong_c0_register(reg, sel, val)			\
do {									\
	if (sizeof(unsigned long) == 4)					\
		__write_32bit_c0_register(reg, sel, val);		\
	else								\
		__write_64bit_c0_register(reg, sel, val);		\
} while (0)

/*
 * On RM7000/RM9000 these are uses to access cop0 set 1 registers
 */
#define __read_32bit_c0_ctrl_register(source)				\
({ int __res;								\
	__asm__ __volatile__(						\
		"cfc0\t%0, " #source "\n\t"				\
		: "=r" (__res));					\
	__res;								\
})

#define __write_32bit_c0_ctrl_register(register, value)			\
do {									\
	__asm__ __volatile__(						\
		"ctc0\t%z0, " #register "\n\t"				\
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		: : "Jr" ((unsigned int)(value)));			\
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} while (0)

/*
 * These versions are only needed for systems with more than 38 bits of
 * physical address space running the 32-bit kernel.  That's none atm :-)
 */
#define __read_64bit_c0_split(source, sel)				\
({									\
902 903
	unsigned long long __val;					\
	unsigned long __flags;						\
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									\
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	local_irq_save(__flags);					\
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	if (sel == 0)							\
		__asm__ __volatile__(					\
			".set\tmips64\n\t"				\
			"dmfc0\t%M0, " #source "\n\t"			\
			"dsll\t%L0, %M0, 32\n\t"			\
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			"dsra\t%M0, %M0, 32\n\t"			\
			"dsra\t%L0, %L0, 32\n\t"			\
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			".set\tmips0"					\
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			: "=r" (__val));				\
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	else								\
		__asm__ __volatile__(					\
			".set\tmips64\n\t"				\
			"dmfc0\t%M0, " #source ", " #sel "\n\t"		\
			"dsll\t%L0, %M0, 32\n\t"			\
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			"dsra\t%M0, %M0, 32\n\t"			\
			"dsra\t%L0, %L0, 32\n\t"			\
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			".set\tmips0"					\
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			: "=r" (__val));				\
	local_irq_restore(__flags);					\
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									\
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	__val;								\
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})

#define __write_64bit_c0_split(source, sel, val)			\
do {									\
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	unsigned long __flags;						\
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									\
933
	local_irq_save(__flags);					\
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	if (sel == 0)							\
		__asm__ __volatile__(					\
			".set\tmips64\n\t"				\
			"dsll\t%L0, %L0, 32\n\t"			\
			"dsrl\t%L0, %L0, 32\n\t"			\
			"dsll\t%M0, %M0, 32\n\t"			\
			"or\t%L0, %L0, %M0\n\t"				\
			"dmtc0\t%L0, " #source "\n\t"			\
			".set\tmips0"					\
			: : "r" (val));					\
	else								\
		__asm__ __volatile__(					\
			".set\tmips64\n\t"				\
			"dsll\t%L0, %L0, 32\n\t"			\
			"dsrl\t%L0, %L0, 32\n\t"			\
			"dsll\t%M0, %M0, 32\n\t"			\
			"or\t%L0, %L0, %M0\n\t"				\
			"dmtc0\t%L0, " #source ", " #sel "\n\t"		\
			".set\tmips0"					\
			: : "r" (val));					\
954
	local_irq_restore(__flags);					\
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} while (0)

#define read_c0_index()		__read_32bit_c0_register($0, 0)
#define write_c0_index(val)	__write_32bit_c0_register($0, 0, val)

960 961 962
#define read_c0_random()	__read_32bit_c0_register($1, 0)
#define write_c0_random(val)	__write_32bit_c0_register($1, 0, val)

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#define read_c0_entrylo0()	__read_ulong_c0_register($2, 0)
#define write_c0_entrylo0(val)	__write_ulong_c0_register($2, 0, val)

#define read_c0_entrylo1()	__read_ulong_c0_register($3, 0)
#define write_c0_entrylo1(val)	__write_ulong_c0_register($3, 0, val)

#define read_c0_conf()		__read_32bit_c0_register($3, 0)
#define write_c0_conf(val)	__write_32bit_c0_register($3, 0, val)

#define read_c0_context()	__read_ulong_c0_register($4, 0)
#define write_c0_context(val)	__write_ulong_c0_register($4, 0, val)

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#define read_c0_userlocal()	__read_ulong_c0_register($4, 2)
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#define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
977

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#define read_c0_pagemask()	__read_32bit_c0_register($5, 0)
#define write_c0_pagemask(val)	__write_32bit_c0_register($5, 0, val)

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#define read_c0_pagegrain()	__read_32bit_c0_register($5, 1)
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#define write_c0_pagegrain(val) __write_32bit_c0_register($5, 1, val)
983

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#define read_c0_wired()		__read_32bit_c0_register($6, 0)
#define write_c0_wired(val)	__write_32bit_c0_register($6, 0, val)

#define read_c0_info()		__read_32bit_c0_register($7, 0)

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#define read_c0_cache()		__read_32bit_c0_register($7, 0) /* TX39xx */
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#define write_c0_cache(val)	__write_32bit_c0_register($7, 0, val)

992 993 994
#define read_c0_badvaddr()	__read_ulong_c0_register($8, 0)
#define write_c0_badvaddr(val)	__write_ulong_c0_register($8, 0, val)

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#define read_c0_count()		__read_32bit_c0_register($9, 0)
#define write_c0_count(val)	__write_32bit_c0_register($9, 0, val)

998 999 1000 1001 1002 1003
#define read_c0_count2()	__read_32bit_c0_register($9, 6) /* pnx8550 */
#define write_c0_count2(val)	__write_32bit_c0_register($9, 6, val)

#define read_c0_count3()	__read_32bit_c0_register($9, 7) /* pnx8550 */
#define write_c0_count3(val)	__write_32bit_c0_register($9, 7, val)

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#define read_c0_entryhi()	__read_ulong_c0_register($10, 0)
#define write_c0_entryhi(val)	__write_ulong_c0_register($10, 0, val)

#define read_c0_compare()	__read_32bit_c0_register($11, 0)
#define write_c0_compare(val)	__write_32bit_c0_register($11, 0, val)

1010 1011 1012 1013 1014 1015
#define read_c0_compare2()	__read_32bit_c0_register($11, 6) /* pnx8550 */
#define write_c0_compare2(val)	__write_32bit_c0_register($11, 6, val)

#define read_c0_compare3()	__read_32bit_c0_register($11, 7) /* pnx8550 */
#define write_c0_compare3(val)	__write_32bit_c0_register($11, 7, val)

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#define read_c0_status()	__read_32bit_c0_register($12, 0)
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#define write_c0_status(val)	__write_32bit_c0_register($12, 0, val)

#define read_c0_cause()		__read_32bit_c0_register($13, 0)
#define write_c0_cause(val)	__write_32bit_c0_register($13, 0, val)

#define read_c0_epc()		__read_ulong_c0_register($14, 0)
#define write_c0_epc(val)	__write_ulong_c0_register($14, 0, val)

#define read_c0_prid()		__read_32bit_c0_register($15, 0)

1028 1029
#define read_c0_cmgcrbase()	__read_ulong_c0_register($15, 3)

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#define read_c0_config()	__read_32bit_c0_register($16, 0)
#define read_c0_config1()	__read_32bit_c0_register($16, 1)
#define read_c0_config2()	__read_32bit_c0_register($16, 2)
#define read_c0_config3()	__read_32bit_c0_register($16, 3)
1034 1035 1036 1037
#define read_c0_config4()	__read_32bit_c0_register($16, 4)
#define read_c0_config5()	__read_32bit_c0_register($16, 5)
#define read_c0_config6()	__read_32bit_c0_register($16, 6)
#define read_c0_config7()	__read_32bit_c0_register($16, 7)
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#define write_c0_config(val)	__write_32bit_c0_register($16, 0, val)
#define write_c0_config1(val)	__write_32bit_c0_register($16, 1, val)
#define write_c0_config2(val)	__write_32bit_c0_register($16, 2, val)
#define write_c0_config3(val)	__write_32bit_c0_register($16, 3, val)
1042 1043 1044 1045
#define write_c0_config4(val)	__write_32bit_c0_register($16, 4, val)
#define write_c0_config5(val)	__write_32bit_c0_register($16, 5, val)
#define write_c0_config6(val)	__write_32bit_c0_register($16, 6, val)
#define write_c0_config7(val)	__write_32bit_c0_register($16, 7, val)
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/*
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 * The WatchLo register.  There may be up to 8 of them.
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 */
#define read_c0_watchlo0()	__read_ulong_c0_register($18, 0)
#define read_c0_watchlo1()	__read_ulong_c0_register($18, 1)
#define read_c0_watchlo2()	__read_ulong_c0_register($18, 2)
#define read_c0_watchlo3()	__read_ulong_c0_register($18, 3)
#define read_c0_watchlo4()	__read_ulong_c0_register($18, 4)
#define read_c0_watchlo5()	__read_ulong_c0_register($18, 5)
#define read_c0_watchlo6()	__read_ulong_c0_register($18, 6)
#define read_c0_watchlo7()	__read_ulong_c0_register($18, 7)
#define write_c0_watchlo0(val)	__write_ulong_c0_register($18, 0, val)
#define write_c0_watchlo1(val)	__write_ulong_c0_register($18, 1, val)
#define write_c0_watchlo2(val)	__write_ulong_c0_register($18, 2, val)
#define write_c0_watchlo3(val)	__write_ulong_c0_register($18, 3, val)
#define write_c0_watchlo4(val)	__write_ulong_c0_register($18, 4, val)
#define write_c0_watchlo5(val)	__write_ulong_c0_register($18, 5, val)
#define write_c0_watchlo6(val)	__write_ulong_c0_register($18, 6, val)
#define write_c0_watchlo7(val)	__write_ulong_c0_register($18, 7, val)

/*
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 * The WatchHi register.  There may be up to 8 of them.
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 */
#define read_c0_watchhi0()	__read_32bit_c0_register($19, 0)
#define read_c0_watchhi1()	__read_32bit_c0_register($19, 1)
#define read_c0_watchhi2()	__read_32bit_c0_register($19, 2)
#define read_c0_watchhi3()	__read_32bit_c0_register($19, 3)
#define read_c0_watchhi4()	__read_32bit_c0_register($19, 4)
#define read_c0_watchhi5()	__read_32bit_c0_register($19, 5)
#define read_c0_watchhi6()	__read_32bit_c0_register($19, 6)
#define read_c0_watchhi7()	__read_32bit_c0_register($19, 7)

#define write_c0_watchhi0(val)	__write_32bit_c0_register($19, 0, val)
#define write_c0_watchhi1(val)	__write_32bit_c0_register($19, 1, val)
#define write_c0_watchhi2(val)	__write_32bit_c0_register($19, 2, val)
#define write_c0_watchhi3(val)	__write_32bit_c0_register($19, 3, val)
#define write_c0_watchhi4(val)	__write_32bit_c0_register($19, 4, val)
#define write_c0_watchhi5(val)	__write_32bit_c0_register($19, 5, val)
#define write_c0_watchhi6(val)	__write_32bit_c0_register($19, 6, val)
#define write_c0_watchhi7(val)	__write_32bit_c0_register($19, 7, val)

#define read_c0_xcontext()	__read_ulong_c0_register($20, 0)
#define write_c0_xcontext(val)	__write_ulong_c0_register($20, 0, val)

#define read_c0_intcontrol()	__read_32bit_c0_ctrl_register($20)
#define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val)

#define read_c0_framemask()	__read_32bit_c0_register($21, 0)
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#define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val)
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#define read_c0_diag()		__read_32bit_c0_register($22, 0)
#define write_c0_diag(val)	__write_32bit_c0_register($22, 0, val)

#define read_c0_diag1()		__read_32bit_c0_register($22, 1)
#define write_c0_diag1(val)	__write_32bit_c0_register($22, 1, val)

#define read_c0_diag2()		__read_32bit_c0_register($22, 2)
#define write_c0_diag2(val)	__write_32bit_c0_register($22, 2, val)

#define read_c0_diag3()		__read_32bit_c0_register($22, 3)
#define write_c0_diag3(val)	__write_32bit_c0_register($22, 3, val)

#define read_c0_diag4()		__read_32bit_c0_register($22, 4)
#define write_c0_diag4(val)	__write_32bit_c0_register($22, 4, val)

#define read_c0_diag5()		__read_32bit_c0_register($22, 5)
#define write_c0_diag5(val)	__write_32bit_c0_register($22, 5, val)

#define read_c0_debug()		__read_32bit_c0_register($23, 0)
#define write_c0_debug(val)	__write_32bit_c0_register($23, 0, val)

#define read_c0_depc()		__read_ulong_c0_register($24, 0)
#define write_c0_depc(val)	__write_ulong_c0_register($24, 0, val)

/*
 * MIPS32 / MIPS64 performance counters
 */
#define read_c0_perfctrl0()	__read_32bit_c0_register($25, 0)
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#define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val)
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#define read_c0_perfcntr0()	__read_32bit_c0_register($25, 1)
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#define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val)
1128 1129
#define read_c0_perfcntr0_64()	__read_64bit_c0_register($25, 1)
#define write_c0_perfcntr0_64(val) __write_64bit_c0_register($25, 1, val)
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#define read_c0_perfctrl1()	__read_32bit_c0_register($25, 2)
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#define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val)
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#define read_c0_perfcntr1()	__read_32bit_c0_register($25, 3)
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#define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val)
1134 1135
#define read_c0_perfcntr1_64()	__read_64bit_c0_register($25, 3)
#define write_c0_perfcntr1_64(val) __write_64bit_c0_register($25, 3, val)
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#define read_c0_perfctrl2()	__read_32bit_c0_register($25, 4)
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#define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val)
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#define read_c0_perfcntr2()	__read_32bit_c0_register($25, 5)
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#define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val)
1140 1141
#define read_c0_perfcntr2_64()	__read_64bit_c0_register($25, 5)
#define write_c0_perfcntr2_64(val) __write_64bit_c0_register($25, 5, val)
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#define read_c0_perfctrl3()	__read_32bit_c0_register($25, 6)
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#define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val)
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#define read_c0_perfcntr3()	__read_32bit_c0_register($25, 7)
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#define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val)
1146 1147
#define read_c0_perfcntr3_64()	__read_64bit_c0_register($25, 7)
#define write_c0_perfcntr3_64(val) __write_64bit_c0_register($25, 7, val)
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#define read_c0_ecc()		__read_32bit_c0_register($26, 0)
#define write_c0_ecc(val)	__write_32bit_c0_register($26, 0, val)

#define read_c0_derraddr0()	__read_ulong_c0_register($26, 1)
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#define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val)
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#define read_c0_cacheerr()	__read_32bit_c0_register($27, 0)

#define read_c0_derraddr1()	__read_ulong_c0_register($27, 1)
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#define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val)
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#define read_c0_taglo()		__read_32bit_c0_register($28, 0)
#define write_c0_taglo(val)	__write_32bit_c0_register($28, 0, val)

1163 1164 1165
#define read_c0_dtaglo()	__read_32bit_c0_register($28, 2)
#define write_c0_dtaglo(val)	__write_32bit_c0_register($28, 2, val)

1166 1167 1168 1169 1170 1171
#define read_c0_ddatalo()	__read_32bit_c0_register($28, 3)
#define write_c0_ddatalo(val)	__write_32bit_c0_register($28, 3, val)

#define read_c0_staglo()	__read_32bit_c0_register($28, 4)
#define write_c0_staglo(val)	__write_32bit_c0_register($28, 4, val)

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#define read_c0_taghi()		__read_32bit_c0_register($29, 0)
#define write_c0_taghi(val)	__write_32bit_c0_register($29, 0, val)

#define read_c0_errorepc()	__read_ulong_c0_register($30, 0)
#define write_c0_errorepc(val)	__write_ulong_c0_register($30, 0, val)

1178
/* MIPSR2 */
1179
#define read_c0_hwrena()	__read_32bit_c0_register($7, 0)
1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190
#define write_c0_hwrena(val)	__write_32bit_c0_register($7, 0, val)

#define read_c0_intctl()	__read_32bit_c0_register($12, 1)
#define write_c0_intctl(val)	__write_32bit_c0_register($12, 1, val)

#define read_c0_srsctl()	__read_32bit_c0_register($12, 2)
#define write_c0_srsctl(val)	__write_32bit_c0_register($12, 2, val)

#define read_c0_srsmap()	__read_32bit_c0_register($12, 3)
#define write_c0_srsmap(val)	__write_32bit_c0_register($12, 3, val)

1191
#define read_c0_ebase()		__read_32bit_c0_register($15, 1)
1192 1193
#define write_c0_ebase(val)	__write_32bit_c0_register($15, 1, val)

1194 1195 1196 1197 1198 1199 1200 1201 1202
/* MIPSR3 */
#define read_c0_segctl0()	__read_32bit_c0_register($5, 2)
#define write_c0_segctl0(val)	__write_32bit_c0_register($5, 2, val)

#define read_c0_segctl1()	__read_32bit_c0_register($5, 3)
#define write_c0_segctl1(val)	__write_32bit_c0_register($5, 3, val)

#define read_c0_segctl2()	__read_32bit_c0_register($5, 4)
#define write_c0_segctl2(val)	__write_32bit_c0_register($5, 4, val)
1203 1204 1205 1206 1207 1208 1209 1210 1211

/* Cavium OCTEON (cnMIPS) */
#define read_c0_cvmcount()	__read_ulong_c0_register($9, 6)
#define write_c0_cvmcount(val)	__write_ulong_c0_register($9, 6, val)

#define read_c0_cvmctl()	__read_64bit_c0_register($9, 7)
#define write_c0_cvmctl(val)	__write_64bit_c0_register($9, 7, val)

#define read_c0_cvmmemctl()	__read_64bit_c0_register($11, 7)
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#define write_c0_cvmmemctl(val) __write_64bit_c0_register($11, 7, val)
1213
/*
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 * The cacheerr registers are not standardized.	 On OCTEON, they are
1215 1216 1217 1218 1219 1220 1221 1222
 * 64 bits wide.
 */
#define read_octeon_c0_icacheerr()	__read_64bit_c0_register($27, 0)
#define write_octeon_c0_icacheerr(val)	__write_64bit_c0_register($27, 0, val)

#define read_octeon_c0_dcacheerr()	__read_64bit_c0_register($27, 1)
#define write_octeon_c0_dcacheerr(val)	__write_64bit_c0_register($27, 1, val)

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/* BMIPS3300 */
#define read_c0_brcm_config_0()		__read_32bit_c0_register($22, 0)
#define write_c0_brcm_config_0(val)	__write_32bit_c0_register($22, 0, val)

#define read_c0_brcm_bus_pll()		__read_32bit_c0_register($22, 4)
#define write_c0_brcm_bus_pll(val)	__write_32bit_c0_register($22, 4, val)

#define read_c0_brcm_reset()		__read_32bit_c0_register($22, 5)
#define write_c0_brcm_reset(val)	__write_32bit_c0_register($22, 5, val)

1233
/* BMIPS43xx */
1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267
#define read_c0_brcm_cmt_intr()		__read_32bit_c0_register($22, 1)
#define write_c0_brcm_cmt_intr(val)	__write_32bit_c0_register($22, 1, val)

#define read_c0_brcm_cmt_ctrl()		__read_32bit_c0_register($22, 2)
#define write_c0_brcm_cmt_ctrl(val)	__write_32bit_c0_register($22, 2, val)

#define read_c0_brcm_cmt_local()	__read_32bit_c0_register($22, 3)
#define write_c0_brcm_cmt_local(val)	__write_32bit_c0_register($22, 3, val)

#define read_c0_brcm_config_1()		__read_32bit_c0_register($22, 5)
#define write_c0_brcm_config_1(val)	__write_32bit_c0_register($22, 5, val)

#define read_c0_brcm_cbr()		__read_32bit_c0_register($22, 6)
#define write_c0_brcm_cbr(val)		__write_32bit_c0_register($22, 6, val)

/* BMIPS5000 */
#define read_c0_brcm_config()		__read_32bit_c0_register($22, 0)
#define write_c0_brcm_config(val)	__write_32bit_c0_register($22, 0, val)

#define read_c0_brcm_mode()		__read_32bit_c0_register($22, 1)
#define write_c0_brcm_mode(val)		__write_32bit_c0_register($22, 1, val)

#define read_c0_brcm_action()		__read_32bit_c0_register($22, 2)
#define write_c0_brcm_action(val)	__write_32bit_c0_register($22, 2, val)

#define read_c0_brcm_edsp()		__read_32bit_c0_register($22, 3)
#define write_c0_brcm_edsp(val)		__write_32bit_c0_register($22, 3, val)

#define read_c0_brcm_bootvec()		__read_32bit_c0_register($22, 4)
#define write_c0_brcm_bootvec(val)	__write_32bit_c0_register($22, 4, val)

#define read_c0_brcm_sleepcount()	__read_32bit_c0_register($22, 7)
#define write_c0_brcm_sleepcount(val)	__write_32bit_c0_register($22, 7, val)

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/*
 * Macros to access the floating point coprocessor control registers
 */
1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285
#define read_32bit_cp1_register(source)					\
({									\
	int __res;							\
									\
	__asm__ __volatile__(						\
	"	.set	push					\n"	\
	"	.set	reorder					\n"	\
	"	# gas fails to assemble cfc1 for some archs,	\n"	\
	"	# like Octeon.					\n"	\
	"	.set	mips1					\n"	\
	"	cfc1	%0,"STR(source)"			\n"	\
	"	.set	pop					\n"	\
	: "=r" (__res));						\
	__res;								\
})
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1287
#ifdef HAVE_AS_DSP
1288 1289
#define rddsp(mask)							\
({									\
1290
	unsigned int __dspctl;						\
1291 1292
									\
	__asm__ __volatile__(						\
1293 1294
	"	.set push					\n"	\
	"	.set dsp					\n"	\
1295
	"	rddsp	%0, %x1					\n"	\
1296
	"	.set pop					\n"	\
1297
	: "=r" (__dspctl)						\
1298
	: "i" (mask));							\
1299
	__dspctl;							\
1300 1301 1302 1303 1304
})

#define wrdsp(val, mask)						\
do {									\
	__asm__ __volatile__(						\
1305 1306
	"	.set push					\n"	\
	"	.set dsp					\n"	\
1307
	"	wrdsp	%0, %x1					\n"	\
1308
	"	.set pop					\n"	\
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	:								\
1310 1311 1312
	: "r" (val), "i" (mask));					\
} while (0)

1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496
#define mflo0()								\
({									\
	long mflo0;							\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mflo %0, $ac0					\n"	\
	"	.set pop					\n" 	\
	: "=r" (mflo0)); 						\
	mflo0;								\
})

#define mflo1()								\
({									\
	long mflo1;							\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mflo %0, $ac1					\n"	\
	"	.set pop					\n" 	\
	: "=r" (mflo1)); 						\
	mflo1;								\
})

#define mflo2()								\
({									\
	long mflo2;							\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mflo %0, $ac2					\n"	\
	"	.set pop					\n" 	\
	: "=r" (mflo2)); 						\
	mflo2;								\
})

#define mflo3()								\
({									\
	long mflo3;							\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mflo %0, $ac3					\n"	\
	"	.set pop					\n" 	\
	: "=r" (mflo3)); 						\
	mflo3;								\
})

#define mfhi0()								\
({									\
	long mfhi0;							\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mfhi %0, $ac0					\n"	\
	"	.set pop					\n" 	\
	: "=r" (mfhi0)); 						\
	mfhi0;								\
})

#define mfhi1()								\
({									\
	long mfhi1;							\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mfhi %0, $ac1					\n"	\
	"	.set pop					\n" 	\
	: "=r" (mfhi1)); 						\
	mfhi1;								\
})

#define mfhi2()								\
({									\
	long mfhi2;							\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mfhi %0, $ac2					\n"	\
	"	.set pop					\n" 	\
	: "=r" (mfhi2)); 						\
	mfhi2;								\
})

#define mfhi3()								\
({									\
	long mfhi3;							\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mfhi %0, $ac3					\n"	\
	"	.set pop					\n" 	\
	: "=r" (mfhi3)); 						\
	mfhi3;								\
})


#define mtlo0(x)							\
({									\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mtlo %0, $ac0					\n"	\
	"	.set pop					\n"	\
	:								\
	: "r" (x));							\
})

#define mtlo1(x)							\
({									\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mtlo %0, $ac1					\n"	\
	"	.set pop					\n"	\
	:								\
	: "r" (x));							\
})

#define mtlo2(x)							\
({									\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mtlo %0, $ac2					\n"	\
	"	.set pop					\n"	\
	:								\
	: "r" (x));							\
})

#define mtlo3(x)							\
({									\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mtlo %0, $ac3					\n"	\
	"	.set pop					\n"	\
	:								\
	: "r" (x));							\
})

#define mthi0(x)							\
({									\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mthi %0, $ac0					\n"	\
	"	.set pop					\n"	\
	:								\
	: "r" (x));							\
})

#define mthi1(x)							\
({									\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mthi %0, $ac1					\n"	\
	"	.set pop					\n"	\
	:								\
	: "r" (x));							\
})

#define mthi2(x)							\
({									\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mthi %0, $ac2					\n"	\
	"	.set pop					\n"	\
	:								\
	: "r" (x));							\
})

#define mthi3(x)							\
({									\
	__asm__(							\
	"	.set push					\n"	\
	"	.set dsp					\n"	\
	"	mthi %0, $ac3					\n"	\
	"	.set pop					\n"	\
	:								\
	: "r" (x));							\
})
1497 1498 1499

#else

1500 1501
#ifdef CONFIG_CPU_MICROMIPS
#define rddsp(mask)							\
1502
({									\
1503
	unsigned int __res;						\
1504 1505 1506 1507
									\
	__asm__ __volatile__(						\
	"	.set	push					\n"	\
	"	.set	noat					\n"	\
1508 1509 1510 1511
	"	# rddsp $1, %x1					\n"	\
	"	.hword	((0x0020067c | (%x1 << 14)) >> 16)	\n"	\
	"	.hword	((0x0020067c | (%x1 << 14)) & 0xffff)	\n"	\
	"	move	%0, $1					\n"	\
1512
	"	.set	pop					\n"	\
1513 1514 1515 1516
	: "=r" (__res)							\
	: "i" (mask));							\
	__res;								\
})
1517

1518
#define wrdsp(val, mask)						\
1519 1520 1521 1522 1523
do {									\
	__asm__ __volatile__(						\
	"	.set	push					\n"	\
	"	.set	noat					\n"	\
	"	move	$1, %0					\n"	\
1524 1525 1526
	"	# wrdsp $1, %x1					\n"	\
	"	.hword	((0x0020167c | (%x1 << 14)) >> 16)	\n"	\
	"	.hword	((0x0020167c | (%x1 << 14)) & 0xffff)	\n"	\
1527 1528
	"	.set	pop					\n"	\
	:								\
1529
	: "r" (val), "i" (mask));					\
1530 1531
} while (0)

1532 1533 1534 1535
#define _umips_dsp_mfxxx(ins)						\
({									\
	unsigned long __treg;						\
									\
1536 1537 1538
	__asm__ __volatile__(						\
	"	.set	push					\n"	\
	"	.set	noat					\n"	\
1539 1540 1541
	"	.hword	0x0001					\n"	\
	"	.hword	%x1					\n"	\
	"	move	%0, $1					\n"	\
1542
	"	.set	pop					\n"	\
1543 1544 1545 1546
	: "=r" (__treg)							\
	: "i" (ins));							\
	__treg;								\
})
1547

1548
#define _umips_dsp_mtxxx(val, ins)					\
1549 1550 1551 1552 1553
do {									\
	__asm__ __volatile__(						\
	"	.set	push					\n"	\
	"	.set	noat					\n"	\
	"	move	$1, %0					\n"	\
1554 1555
	"	.hword	0x0001					\n"	\
	"	.hword	%x1					\n"	\
1556 1557
	"	.set	pop					\n"	\
	:								\
1558
	: "r" (val), "i" (ins));					\
1559 1560
} while (0)

1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587
#define _umips_dsp_mflo(reg) _umips_dsp_mfxxx((reg << 14) | 0x107c)
#define _umips_dsp_mfhi(reg) _umips_dsp_mfxxx((reg << 14) | 0x007c)

#define _umips_dsp_mtlo(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x307c))
#define _umips_dsp_mthi(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x207c))

#define mflo0() _umips_dsp_mflo(0)
#define mflo1() _umips_dsp_mflo(1)
#define mflo2() _umips_dsp_mflo(2)
#define mflo3() _umips_dsp_mflo(3)

#define mfhi0() _umips_dsp_mfhi(0)
#define mfhi1() _umips_dsp_mfhi(1)
#define mfhi2() _umips_dsp_mfhi(2)
#define mfhi3() _umips_dsp_mfhi(3)

#define mtlo0(x) _umips_dsp_mtlo(x, 0)
#define mtlo1(x) _umips_dsp_mtlo(x, 1)
#define mtlo2(x) _umips_dsp_mtlo(x, 2)
#define mtlo3(x) _umips_dsp_mtlo(x, 3)

#define mthi0(x) _umips_dsp_mthi(x, 0)
#define mthi1(x) _umips_dsp_mthi(x, 1)
#define mthi2(x) _umips_dsp_mthi(x, 2)
#define mthi3(x) _umips_dsp_mthi(x, 3)

#else  /* !CONFIG_CPU_MICROMIPS */
1588 1589 1590 1591
#define rddsp(mask)							\
({									\
	unsigned int __res;						\
									\
1592
	__asm__ __volatile__(						\
1593 1594 1595 1596 1597 1598 1599 1600 1601 1602
	"	.set	push				\n"		\
	"	.set	noat				\n"		\
	"	# rddsp $1, %x1				\n"		\
	"	.word	0x7c000cb8 | (%x1 << 16)	\n"		\
	"	move	%0, $1				\n"		\
	"	.set	pop				\n"		\
	: "=r" (__res)							\
	: "i" (mask));							\
	__res;								\
})
1603

1604
#define wrdsp(val, mask)						\
1605 1606 1607 1608 1609
do {									\
	__asm__ __volatile__(						\
	"	.set	push					\n"	\
	"	.set	noat					\n"	\
	"	move	$1, %0					\n"	\
1610 1611
	"	# wrdsp $1, %x1					\n"	\
	"	.word	0x7c2004f8 | (%x1 << 11)		\n"	\
1612
	"	.set	pop					\n"	\
1613 1614
        :								\
	: "r" (val), "i" (mask));					\
1615 1616
} while (0)

1617
#define _dsp_mfxxx(ins)							\
1618 1619 1620 1621 1622 1623
({									\
	unsigned long __treg;						\
									\
	__asm__ __volatile__(						\
	"	.set	push					\n"	\
	"	.set	noat					\n"	\
1624 1625
	"	.word	(0x00000810 | %1)			\n"	\
	"	move	%0, $1					\n"	\
1626
	"	.set	pop					\n"	\
1627 1628 1629 1630
	: "=r" (__treg)							\
	: "i" (ins));							\
	__treg;								\
})
1631

1632
#define _dsp_mtxxx(val, ins)						\
1633 1634 1635 1636 1637
do {									\
	__asm__ __volatile__(						\
	"	.set	push					\n"	\
	"	.set	noat					\n"	\
	"	move	$1, %0					\n"	\
1638
	"	.word	(0x00200011 | %1)			\n"	\
1639 1640
	"	.set	pop					\n"	\
	:								\
1641
	: "r" (val), "i" (ins));					\
1642 1643
} while (0)

1644 1645
#define _dsp_mflo(reg) _dsp_mfxxx((reg << 21) | 0x0002)
#define _dsp_mfhi(reg) _dsp_mfxxx((reg << 21) | 0x0000)
1646

1647 1648
#define _dsp_mtlo(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0002))
#define _dsp_mthi(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0000))
1649

1650 1651 1652 1653
#define mflo0() _dsp_mflo(0)
#define mflo1() _dsp_mflo(1)
#define mflo2() _dsp_mflo(2)
#define mflo3() _dsp_mflo(3)
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1655 1656 1657 1658
#define mfhi0() _dsp_mfhi(0)
#define mfhi1() _dsp_mfhi(1)
#define mfhi2() _dsp_mfhi(2)
#define mfhi3() _dsp_mfhi(3)
1659

1660 1661 1662 1663
#define mtlo0(x) _dsp_mtlo(x, 0)
#define mtlo1(x) _dsp_mtlo(x, 1)
#define mtlo2(x) _dsp_mtlo(x, 2)
#define mtlo3(x) _dsp_mtlo(x, 3)
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1665 1666 1667 1668
#define mthi0(x) _dsp_mthi(x, 0)
#define mthi1(x) _dsp_mthi(x, 1)
#define mthi2(x) _dsp_mthi(x, 2)
#define mthi3(x) _dsp_mthi(x, 3)
1669

1670
#endif /* CONFIG_CPU_MICROMIPS */
1671 1672
#endif

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/*
 * TLB operations.
 *
 * It is responsibility of the caller to take care of any TLB hazards.
 */
static inline void tlb_probe(void)
{
	__asm__ __volatile__(
		".set noreorder\n\t"
		"tlbp\n\t"
		".set reorder");
}

static inline void tlb_read(void)
{
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#if MIPS34K_MISSED_ITLB_WAR
	int res = 0;

	__asm__ __volatile__(
	"	.set	push					\n"
	"	.set	noreorder				\n"
	"	.set	noat					\n"
	"	.set	mips32r2				\n"
	"	.word	0x41610001		# dvpe $1	\n"
	"	move	%0, $1					\n"
	"	ehb						\n"
	"	.set	pop					\n"
	: "=r" (res));

	instruction_hazard();
#endif

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	__asm__ __volatile__(
		".set noreorder\n\t"
		"tlbr\n\t"
		".set reorder");
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#if MIPS34K_MISSED_ITLB_WAR
	if ((res & _ULCAST_(1)))
		__asm__ __volatile__(
		"	.set	push				\n"
		"	.set	noreorder			\n"
		"	.set	noat				\n"
		"	.set	mips32r2			\n"
		"	.word	0x41600021	# evpe		\n"
		"	ehb					\n"
		"	.set	pop				\n");
#endif
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}

static inline void tlb_write_indexed(void)
{
	__asm__ __volatile__(
		".set noreorder\n\t"
		"tlbwi\n\t"
		".set reorder");
}

static inline void tlb_write_random(void)
{
	__asm__ __volatile__(
		".set noreorder\n\t"
		"tlbwr\n\t"
		".set reorder");
}

/*
 * Manipulate bits in a c0 register.
 */
#define __BUILD_SET_C0(name)					\
static inline unsigned int					\
set_c0_##name(unsigned int set)					\
{								\
1746
	unsigned int res, new;					\
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								\
	res = read_c0_##name();					\
1749 1750
	new = res | set;					\
	write_c0_##name(new);					\
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								\
	return res;						\
}								\
								\
static inline unsigned int					\
clear_c0_##name(unsigned int clear)				\
{								\
1758
	unsigned int res, new;					\
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								\
	res = read_c0_##name();					\
1761 1762
	new = res & ~clear;					\
	write_c0_##name(new);					\
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								\
	return res;						\
}								\
								\
static inline unsigned int					\
1768
change_c0_##name(unsigned int change, unsigned int val)		\
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{								\
1770
	unsigned int res, new;					\
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								\
	res = read_c0_##name();					\
1773 1774 1775
	new = res & ~change;					\
	new |= (val & change);					\
	write_c0_##name(new);					\
L
Linus Torvalds 已提交
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								\
	return res;						\
}

__BUILD_SET_C0(status)
__BUILD_SET_C0(cause)
__BUILD_SET_C0(config)
1783
__BUILD_SET_C0(config5)
L
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1784
__BUILD_SET_C0(intcontrol)
1785 1786
__BUILD_SET_C0(intctl)
__BUILD_SET_C0(srsmap)
1787 1788 1789 1790 1791 1792 1793
__BUILD_SET_C0(brcm_config_0)
__BUILD_SET_C0(brcm_bus_pll)
__BUILD_SET_C0(brcm_reset)
__BUILD_SET_C0(brcm_cmt_intr)
__BUILD_SET_C0(brcm_cmt_ctrl)
__BUILD_SET_C0(brcm_config)
__BUILD_SET_C0(brcm_mode)
L
Linus Torvalds 已提交
1794 1795 1796 1797

#endif /* !__ASSEMBLY__ */

#endif /* _ASM_MIPSREGS_H */