1026 lines
31 KiB
C
1026 lines
31 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle
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* Copyright (C) 2000 Silicon Graphics, Inc.
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* Modified for further R[236]000 support by Paul M. Antoine, 1996.
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* Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
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* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
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* Copyright (C) 2003 Maciej W. Rozycki
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*/
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#ifndef _ASM_MIPSREGS_H
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#define _ASM_MIPSREGS_H
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#include <linux/config.h>
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#include <linux/linkage.h>
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#include <asm/hazards.h>
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/*
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* The following macros are especially useful for __asm__
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* inline assembler.
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*/
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#ifndef __STR
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#define __STR(x) #x
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#endif
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#ifndef STR
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#define STR(x) __STR(x)
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#endif
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/*
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* Configure language
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*/
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#ifdef __ASSEMBLY__
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#define _ULCAST_
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#else
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#define _ULCAST_ (unsigned long)
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#endif
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/*
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* Coprocessor 0 register names
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*/
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#define CP0_INDEX $0
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#define CP0_RANDOM $1
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#define CP0_ENTRYLO0 $2
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#define CP0_ENTRYLO1 $3
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#define CP0_CONF $3
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#define CP0_CONTEXT $4
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#define CP0_PAGEMASK $5
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#define CP0_WIRED $6
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#define CP0_INFO $7
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#define CP0_BADVADDR $8
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#define CP0_COUNT $9
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#define CP0_ENTRYHI $10
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#define CP0_COMPARE $11
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#define CP0_STATUS $12
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#define CP0_CAUSE $13
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#define CP0_EPC $14
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#define CP0_PRID $15
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#define CP0_CONFIG $16
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#define CP0_LLADDR $17
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#define CP0_WATCHLO $18
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#define CP0_WATCHHI $19
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#define CP0_XCONTEXT $20
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#define CP0_FRAMEMASK $21
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#define CP0_DIAGNOSTIC $22
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#define CP0_DEBUG $23
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#define CP0_DEPC $24
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#define CP0_PERFORMANCE $25
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#define CP0_ECC $26
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#define CP0_CACHEERR $27
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#define CP0_TAGLO $28
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#define CP0_TAGHI $29
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#define CP0_ERROREPC $30
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#define CP0_DESAVE $31
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/*
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* R4640/R4650 cp0 register names. These registers are listed
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* here only for completeness; without MMU these CPUs are not useable
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* by Linux. A future ELKS port might take make Linux run on them
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* though ...
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*/
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#define CP0_IBASE $0
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#define CP0_IBOUND $1
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#define CP0_DBASE $2
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#define CP0_DBOUND $3
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#define CP0_CALG $17
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#define CP0_IWATCH $18
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#define CP0_DWATCH $19
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/*
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* Coprocessor 0 Set 1 register names
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*/
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#define CP0_S1_DERRADDR0 $26
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#define CP0_S1_DERRADDR1 $27
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#define CP0_S1_INTCONTROL $20
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/*
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* TX39 Series
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*/
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#define CP0_TX39_CACHE $7
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/*
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* Coprocessor 1 (FPU) register names
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*/
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#define CP1_REVISION $0
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#define CP1_STATUS $31
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/*
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* FPU Status Register Values
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*/
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/*
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* Status Register Values
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*/
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#define FPU_CSR_FLUSH 0x01000000 /* flush denormalised results to 0 */
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#define FPU_CSR_COND 0x00800000 /* $fcc0 */
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#define FPU_CSR_COND0 0x00800000 /* $fcc0 */
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#define FPU_CSR_COND1 0x02000000 /* $fcc1 */
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#define FPU_CSR_COND2 0x04000000 /* $fcc2 */
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#define FPU_CSR_COND3 0x08000000 /* $fcc3 */
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#define FPU_CSR_COND4 0x10000000 /* $fcc4 */
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#define FPU_CSR_COND5 0x20000000 /* $fcc5 */
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#define FPU_CSR_COND6 0x40000000 /* $fcc6 */
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#define FPU_CSR_COND7 0x80000000 /* $fcc7 */
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/*
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* X the exception cause indicator
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* E the exception enable
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* S the sticky/flag bit
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*/
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#define FPU_CSR_ALL_X 0x0003f000
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#define FPU_CSR_UNI_X 0x00020000
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#define FPU_CSR_INV_X 0x00010000
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#define FPU_CSR_DIV_X 0x00008000
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#define FPU_CSR_OVF_X 0x00004000
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#define FPU_CSR_UDF_X 0x00002000
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#define FPU_CSR_INE_X 0x00001000
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#define FPU_CSR_ALL_E 0x00000f80
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#define FPU_CSR_INV_E 0x00000800
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#define FPU_CSR_DIV_E 0x00000400
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#define FPU_CSR_OVF_E 0x00000200
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#define FPU_CSR_UDF_E 0x00000100
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#define FPU_CSR_INE_E 0x00000080
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#define FPU_CSR_ALL_S 0x0000007c
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#define FPU_CSR_INV_S 0x00000040
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#define FPU_CSR_DIV_S 0x00000020
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#define FPU_CSR_OVF_S 0x00000010
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#define FPU_CSR_UDF_S 0x00000008
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#define FPU_CSR_INE_S 0x00000004
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/* rounding mode */
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#define FPU_CSR_RN 0x0 /* nearest */
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#define FPU_CSR_RZ 0x1 /* towards zero */
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#define FPU_CSR_RU 0x2 /* towards +Infinity */
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#define FPU_CSR_RD 0x3 /* towards -Infinity */
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/*
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* Values for PageMask register
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*/
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#ifdef CONFIG_CPU_VR41XX
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/* Why doesn't stupidity hurt ... */
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#define PM_1K 0x00000000
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#define PM_4K 0x00001800
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#define PM_16K 0x00007800
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#define PM_64K 0x0001f800
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#define PM_256K 0x0007f800
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#else
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#define PM_4K 0x00000000
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#define PM_16K 0x00006000
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#define PM_64K 0x0001e000
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#define PM_256K 0x0007e000
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#define PM_1M 0x001fe000
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#define PM_4M 0x007fe000
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#define PM_16M 0x01ffe000
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#define PM_64M 0x07ffe000
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#define PM_256M 0x1fffe000
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#endif
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/*
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* Default page size for a given kernel configuration
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*/
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#ifdef CONFIG_PAGE_SIZE_4KB
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#define PM_DEFAULT_MASK PM_4K
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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_64KB)
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#define PM_DEFAULT_MASK PM_64K
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#else
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#error Bad page size configuration!
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#endif
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/*
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* Values used for computation of new tlb entries
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*/
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#define PL_4K 12
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#define PL_16K 14
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#define PL_64K 16
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#define PL_256K 18
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#define PL_1M 20
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#define PL_4M 22
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#define PL_16M 24
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#define PL_64M 26
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#define PL_256M 28
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/*
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* R4x00 interrupt enable / cause bits
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*/
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#define IE_SW0 (_ULCAST_(1) << 8)
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#define IE_SW1 (_ULCAST_(1) << 9)
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#define IE_IRQ0 (_ULCAST_(1) << 10)
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#define IE_IRQ1 (_ULCAST_(1) << 11)
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#define IE_IRQ2 (_ULCAST_(1) << 12)
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#define IE_IRQ3 (_ULCAST_(1) << 13)
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#define IE_IRQ4 (_ULCAST_(1) << 14)
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#define IE_IRQ5 (_ULCAST_(1) << 15)
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/*
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* R4x00 interrupt cause bits
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*/
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#define C_SW0 (_ULCAST_(1) << 8)
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#define C_SW1 (_ULCAST_(1) << 9)
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#define C_IRQ0 (_ULCAST_(1) << 10)
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#define C_IRQ1 (_ULCAST_(1) << 11)
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#define C_IRQ2 (_ULCAST_(1) << 12)
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#define C_IRQ3 (_ULCAST_(1) << 13)
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#define C_IRQ4 (_ULCAST_(1) << 14)
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#define C_IRQ5 (_ULCAST_(1) << 15)
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/*
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* Bitfields in the R4xx0 cp0 status register
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*/
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#define ST0_IE 0x00000001
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#define ST0_EXL 0x00000002
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#define ST0_ERL 0x00000004
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#define ST0_KSU 0x00000018
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# define KSU_USER 0x00000010
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# define KSU_SUPERVISOR 0x00000008
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# define KSU_KERNEL 0x00000000
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#define ST0_UX 0x00000020
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#define ST0_SX 0x00000040
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#define ST0_KX 0x00000080
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#define ST0_DE 0x00010000
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#define ST0_CE 0x00020000
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/*
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* Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
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* cacheops in userspace. This bit exists only on RM7000 and RM9000
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* processors.
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*/
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#define ST0_CO 0x08000000
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/*
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* Bitfields in the R[23]000 cp0 status register.
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*/
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#define ST0_IEC 0x00000001
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#define ST0_KUC 0x00000002
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#define ST0_IEP 0x00000004
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#define ST0_KUP 0x00000008
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#define ST0_IEO 0x00000010
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#define ST0_KUO 0x00000020
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/* bits 6 & 7 are reserved on R[23]000 */
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#define ST0_ISC 0x00010000
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#define ST0_SWC 0x00020000
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#define ST0_CM 0x00080000
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/*
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* Bits specific to the R4640/R4650
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*/
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#define ST0_UM (_ULCAST_(1) << 4)
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#define ST0_IL (_ULCAST_(1) << 23)
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#define ST0_DL (_ULCAST_(1) << 24)
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/*
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* Bitfields in the TX39 family CP0 Configuration Register 3
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*/
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#define TX39_CONF_ICS_SHIFT 19
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#define TX39_CONF_ICS_MASK 0x00380000
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#define TX39_CONF_ICS_1KB 0x00000000
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#define TX39_CONF_ICS_2KB 0x00080000
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#define TX39_CONF_ICS_4KB 0x00100000
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#define TX39_CONF_ICS_8KB 0x00180000
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#define TX39_CONF_ICS_16KB 0x00200000
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#define TX39_CONF_DCS_SHIFT 16
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#define TX39_CONF_DCS_MASK 0x00070000
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#define TX39_CONF_DCS_1KB 0x00000000
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#define TX39_CONF_DCS_2KB 0x00010000
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#define TX39_CONF_DCS_4KB 0x00020000
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#define TX39_CONF_DCS_8KB 0x00030000
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#define TX39_CONF_DCS_16KB 0x00040000
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#define TX39_CONF_CWFON 0x00004000
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#define TX39_CONF_WBON 0x00002000
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#define TX39_CONF_RF_SHIFT 10
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#define TX39_CONF_RF_MASK 0x00000c00
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#define TX39_CONF_DOZE 0x00000200
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#define TX39_CONF_HALT 0x00000100
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#define TX39_CONF_LOCK 0x00000080
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#define TX39_CONF_ICE 0x00000020
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#define TX39_CONF_DCE 0x00000010
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#define TX39_CONF_IRSIZE_SHIFT 2
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#define TX39_CONF_IRSIZE_MASK 0x0000000c
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#define TX39_CONF_DRSIZE_SHIFT 0
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#define TX39_CONF_DRSIZE_MASK 0x00000003
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/*
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* Status register bits available in all MIPS CPUs.
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*/
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#define ST0_IM 0x0000ff00
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#define STATUSB_IP0 8
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#define STATUSF_IP0 (_ULCAST_(1) << 8)
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#define STATUSB_IP1 9
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#define STATUSF_IP1 (_ULCAST_(1) << 9)
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#define STATUSB_IP2 10
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#define STATUSF_IP2 (_ULCAST_(1) << 10)
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#define STATUSB_IP3 11
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#define STATUSF_IP3 (_ULCAST_(1) << 11)
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#define STATUSB_IP4 12
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#define STATUSF_IP4 (_ULCAST_(1) << 12)
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#define STATUSB_IP5 13
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#define STATUSF_IP5 (_ULCAST_(1) << 13)
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#define STATUSB_IP6 14
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#define STATUSF_IP6 (_ULCAST_(1) << 14)
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#define STATUSB_IP7 15
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#define STATUSF_IP7 (_ULCAST_(1) << 15)
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#define STATUSB_IP8 0
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#define STATUSF_IP8 (_ULCAST_(1) << 0)
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#define STATUSB_IP9 1
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#define STATUSF_IP9 (_ULCAST_(1) << 1)
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#define STATUSB_IP10 2
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#define STATUSF_IP10 (_ULCAST_(1) << 2)
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#define STATUSB_IP11 3
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#define STATUSF_IP11 (_ULCAST_(1) << 3)
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#define STATUSB_IP12 4
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#define STATUSF_IP12 (_ULCAST_(1) << 4)
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#define STATUSB_IP13 5
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#define STATUSF_IP13 (_ULCAST_(1) << 5)
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#define STATUSB_IP14 6
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#define STATUSF_IP14 (_ULCAST_(1) << 6)
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#define STATUSB_IP15 7
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#define STATUSF_IP15 (_ULCAST_(1) << 7)
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#define ST0_CH 0x00040000
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#define ST0_SR 0x00100000
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#define ST0_TS 0x00200000
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#define ST0_BEV 0x00400000
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#define ST0_RE 0x02000000
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#define ST0_FR 0x04000000
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#define ST0_CU 0xf0000000
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#define ST0_CU0 0x10000000
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#define ST0_CU1 0x20000000
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#define ST0_CU2 0x40000000
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#define ST0_CU3 0x80000000
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#define ST0_XX 0x80000000 /* MIPS IV naming */
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/*
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* Bitfields and bit numbers in the coprocessor 0 cause register.
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*
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* Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
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*/
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#define CAUSEB_EXCCODE 2
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#define CAUSEF_EXCCODE (_ULCAST_(31) << 2)
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#define CAUSEB_IP 8
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#define CAUSEF_IP (_ULCAST_(255) << 8)
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#define CAUSEB_IP0 8
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#define CAUSEF_IP0 (_ULCAST_(1) << 8)
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#define CAUSEB_IP1 9
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#define CAUSEF_IP1 (_ULCAST_(1) << 9)
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#define CAUSEB_IP2 10
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#define CAUSEF_IP2 (_ULCAST_(1) << 10)
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#define CAUSEB_IP3 11
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#define CAUSEF_IP3 (_ULCAST_(1) << 11)
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#define CAUSEB_IP4 12
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#define CAUSEF_IP4 (_ULCAST_(1) << 12)
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#define CAUSEB_IP5 13
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#define CAUSEF_IP5 (_ULCAST_(1) << 13)
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#define CAUSEB_IP6 14
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#define CAUSEF_IP6 (_ULCAST_(1) << 14)
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#define CAUSEB_IP7 15
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#define CAUSEF_IP7 (_ULCAST_(1) << 15)
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#define CAUSEB_IV 23
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#define CAUSEF_IV (_ULCAST_(1) << 23)
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#define CAUSEB_CE 28
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#define CAUSEF_CE (_ULCAST_(3) << 28)
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#define CAUSEB_BD 31
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#define CAUSEF_BD (_ULCAST_(1) << 31)
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/*
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* Bits in the coprocessor 0 config register.
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*/
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/* Generic bits. */
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#define CONF_CM_CACHABLE_NO_WA 0
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#define CONF_CM_CACHABLE_WA 1
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#define CONF_CM_UNCACHED 2
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#define CONF_CM_CACHABLE_NONCOHERENT 3
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#define CONF_CM_CACHABLE_CE 4
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#define CONF_CM_CACHABLE_COW 5
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#define CONF_CM_CACHABLE_CUW 6
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#define CONF_CM_CACHABLE_ACCELERATED 7
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#define CONF_CM_CMASK 7
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#define CONF_BE (_ULCAST_(1) << 15)
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/* Bits common to various processors. */
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#define CONF_CU (_ULCAST_(1) << 3)
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#define CONF_DB (_ULCAST_(1) << 4)
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#define CONF_IB (_ULCAST_(1) << 5)
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#define CONF_DC (_ULCAST_(7) << 6)
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#define CONF_IC (_ULCAST_(7) << 9)
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#define CONF_EB (_ULCAST_(1) << 13)
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#define CONF_EM (_ULCAST_(1) << 14)
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#define CONF_SM (_ULCAST_(1) << 16)
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#define CONF_SC (_ULCAST_(1) << 17)
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#define CONF_EW (_ULCAST_(3) << 18)
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#define CONF_EP (_ULCAST_(15)<< 24)
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#define CONF_EC (_ULCAST_(7) << 28)
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#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)
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#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)
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#define R5K_CONF_SS (_ULCAST_(3) << 20)
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/* Bits specific to the R10000. */
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#define R10K_CONF_DN (_ULCAST_(3) << 3)
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#define R10K_CONF_CT (_ULCAST_(1) << 5)
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#define R10K_CONF_PE (_ULCAST_(1) << 6)
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#define R10K_CONF_PM (_ULCAST_(3) << 7)
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#define R10K_CONF_EC (_ULCAST_(15)<< 9)
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#define R10K_CONF_SB (_ULCAST_(1) << 13)
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#define R10K_CONF_SK (_ULCAST_(1) << 14)
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#define R10K_CONF_SS (_ULCAST_(7) << 16)
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#define R10K_CONF_SC (_ULCAST_(7) << 19)
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#define R10K_CONF_DC (_ULCAST_(7) << 26)
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#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)
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#define VR41_CONF_M16 (_ULCAST_(1) << 20)
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#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)
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#define R30XX_CONF_REV (_ULCAST_(1) << 22)
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#define R30XX_CONF_AC (_ULCAST_(1) << 23)
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#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)
|
|
|
|
/* Bits specific to the MIPS32/64 PRA. */
|
|
#define MIPS_CONF_MT (_ULCAST_(7) << 7)
|
|
#define MIPS_CONF_AR (_ULCAST_(7) << 10)
|
|
#define MIPS_CONF_AT (_ULCAST_(3) << 13)
|
|
#define MIPS_CONF_M (_ULCAST_(1) << 31)
|
|
|
|
/*
|
|
* R10000 performance counter definitions.
|
|
*
|
|
* FIXME: The R10000 performance counter opens a nice way to implement CPU
|
|
* time accounting with a precission of one cycle. I don't have
|
|
* R10000 silicon but just a manual, so ...
|
|
*/
|
|
|
|
/*
|
|
* Events counted by counter #0
|
|
*/
|
|
#define CE0_CYCLES 0
|
|
#define CE0_INSN_ISSUED 1
|
|
#define CE0_LPSC_ISSUED 2
|
|
#define CE0_S_ISSUED 3
|
|
#define CE0_SC_ISSUED 4
|
|
#define CE0_SC_FAILED 5
|
|
#define CE0_BRANCH_DECODED 6
|
|
#define CE0_QW_WB_SECONDARY 7
|
|
#define CE0_CORRECTED_ECC_ERRORS 8
|
|
#define CE0_ICACHE_MISSES 9
|
|
#define CE0_SCACHE_I_MISSES 10
|
|
#define CE0_SCACHE_I_WAY_MISSPREDICTED 11
|
|
#define CE0_EXT_INTERVENTIONS_REQ 12
|
|
#define CE0_EXT_INVALIDATE_REQ 13
|
|
#define CE0_VIRTUAL_COHERENCY_COND 14
|
|
#define CE0_INSN_GRADUATED 15
|
|
|
|
/*
|
|
* Events counted by counter #1
|
|
*/
|
|
#define CE1_CYCLES 0
|
|
#define CE1_INSN_GRADUATED 1
|
|
#define CE1_LPSC_GRADUATED 2
|
|
#define CE1_S_GRADUATED 3
|
|
#define CE1_SC_GRADUATED 4
|
|
#define CE1_FP_INSN_GRADUATED 5
|
|
#define CE1_QW_WB_PRIMARY 6
|
|
#define CE1_TLB_REFILL 7
|
|
#define CE1_BRANCH_MISSPREDICTED 8
|
|
#define CE1_DCACHE_MISS 9
|
|
#define CE1_SCACHE_D_MISSES 10
|
|
#define CE1_SCACHE_D_WAY_MISSPREDICTED 11
|
|
#define CE1_EXT_INTERVENTION_HITS 12
|
|
#define CE1_EXT_INVALIDATE_REQ 13
|
|
#define CE1_SP_HINT_TO_CEXCL_SC_BLOCKS 14
|
|
#define CE1_SP_HINT_TO_SHARED_SC_BLOCKS 15
|
|
|
|
/*
|
|
* These flags define in which privilege mode the counters count events
|
|
*/
|
|
#define CEB_USER 8 /* Count events in user mode, EXL = ERL = 0 */
|
|
#define CEB_SUPERVISOR 4 /* Count events in supvervisor mode EXL = ERL = 0 */
|
|
#define CEB_KERNEL 2 /* Count events in kernel mode EXL = ERL = 0 */
|
|
#define CEB_EXL 1 /* Count events with EXL = 1, ERL = 0 */
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/*
|
|
* Functions to access the R10000 performance counters. These are basically
|
|
* 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" \
|
|
: "=r" (__res) \
|
|
: "i" (counter)); \
|
|
\
|
|
__res; \
|
|
})
|
|
|
|
#define write_r10k_perf_cntr(counter,val) \
|
|
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" \
|
|
: "=r" (__res) \
|
|
: "i" (counter)); \
|
|
\
|
|
__res; \
|
|
})
|
|
|
|
#define write_r10k_perf_cntl(counter,val) \
|
|
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" \
|
|
: : "Jr" ((unsigned int)value)); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips32\n\t" \
|
|
"mtc0\t%z0, " #register ", " #sel "\n\t" \
|
|
".set\tmips0" \
|
|
: : "Jr" ((unsigned int)value)); \
|
|
} 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" \
|
|
: : "Jr" ((unsigned int)value)); \
|
|
} 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) \
|
|
({ \
|
|
unsigned long long val; \
|
|
unsigned long flags; \
|
|
\
|
|
local_irq_save(flags); \
|
|
if (sel == 0) \
|
|
__asm__ __volatile__( \
|
|
".set\tmips64\n\t" \
|
|
"dmfc0\t%M0, " #source "\n\t" \
|
|
"dsll\t%L0, %M0, 32\n\t" \
|
|
"dsrl\t%M0, %M0, 32\n\t" \
|
|
"dsrl\t%L0, %L0, 32\n\t" \
|
|
".set\tmips0" \
|
|
: "=r" (val)); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips64\n\t" \
|
|
"dmfc0\t%M0, " #source ", " #sel "\n\t" \
|
|
"dsll\t%L0, %M0, 32\n\t" \
|
|
"dsrl\t%M0, %M0, 32\n\t" \
|
|
"dsrl\t%L0, %L0, 32\n\t" \
|
|
".set\tmips0" \
|
|
: "=r" (val)); \
|
|
local_irq_restore(flags); \
|
|
\
|
|
val; \
|
|
})
|
|
|
|
#define __write_64bit_c0_split(source, sel, val) \
|
|
do { \
|
|
unsigned long flags; \
|
|
\
|
|
local_irq_save(flags); \
|
|
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)); \
|
|
local_irq_restore(flags); \
|
|
} while (0)
|
|
|
|
#define read_c0_index() __read_32bit_c0_register($0, 0)
|
|
#define write_c0_index(val) __write_32bit_c0_register($0, 0, val)
|
|
|
|
#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)
|
|
|
|
#define read_c0_pagemask() __read_32bit_c0_register($5, 0)
|
|
#define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val)
|
|
|
|
#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)
|
|
|
|
#define read_c0_cache() __read_32bit_c0_register($7, 0) /* TX39xx */
|
|
#define write_c0_cache(val) __write_32bit_c0_register($7, 0, val)
|
|
|
|
#define read_c0_count() __read_32bit_c0_register($9, 0)
|
|
#define write_c0_count(val) __write_32bit_c0_register($9, 0, val)
|
|
|
|
#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)
|
|
|
|
#define read_c0_status() __read_32bit_c0_register($12, 0)
|
|
#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)
|
|
|
|
#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)
|
|
#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)
|
|
#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)
|
|
#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)
|
|
|
|
/*
|
|
* The WatchLo register. There may be upto 8 of them.
|
|
*/
|
|
#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)
|
|
|
|
/*
|
|
* The WatchHi register. There may be upto 8 of them.
|
|
*/
|
|
#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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/* RM9000 PerfControl performance counter control register */
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#define read_c0_perfcontrol() __read_32bit_c0_register($22, 0)
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#define write_c0_perfcontrol(val) __write_32bit_c0_register($22, 0, val)
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#define read_c0_diag() __read_32bit_c0_register($22, 0)
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#define write_c0_diag(val) __write_32bit_c0_register($22, 0, val)
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#define read_c0_diag1() __read_32bit_c0_register($22, 1)
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#define write_c0_diag1(val) __write_32bit_c0_register($22, 1, val)
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#define read_c0_diag2() __read_32bit_c0_register($22, 2)
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#define write_c0_diag2(val) __write_32bit_c0_register($22, 2, val)
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#define read_c0_diag3() __read_32bit_c0_register($22, 3)
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#define write_c0_diag3(val) __write_32bit_c0_register($22, 3, val)
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#define read_c0_diag4() __read_32bit_c0_register($22, 4)
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#define write_c0_diag4(val) __write_32bit_c0_register($22, 4, val)
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#define read_c0_diag5() __read_32bit_c0_register($22, 5)
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#define write_c0_diag5(val) __write_32bit_c0_register($22, 5, val)
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#define read_c0_debug() __read_32bit_c0_register($23, 0)
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#define write_c0_debug(val) __write_32bit_c0_register($23, 0, val)
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#define read_c0_depc() __read_ulong_c0_register($24, 0)
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#define write_c0_depc(val) __write_ulong_c0_register($24, 0, val)
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/*
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* MIPS32 / MIPS64 performance counters
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*/
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#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)
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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)
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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)
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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)
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/* RM9000 PerfCount performance counter register */
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#define read_c0_perfcount() __read_64bit_c0_register($25, 0)
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#define write_c0_perfcount(val) __write_64bit_c0_register($25, 0, val)
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#define read_c0_ecc() __read_32bit_c0_register($26, 0)
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#define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val)
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#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)
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#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)
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#define write_c0_taglo(val) __write_32bit_c0_register($28, 0, val)
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#define read_c0_taghi() __read_32bit_c0_register($29, 0)
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#define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val)
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#define read_c0_errorepc() __read_ulong_c0_register($30, 0)
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#define write_c0_errorepc(val) __write_ulong_c0_register($30, 0, val)
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|
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/*
|
|
* Macros to access the floating point coprocessor control registers
|
|
*/
|
|
#define read_32bit_cp1_register(source) \
|
|
({ int __res; \
|
|
__asm__ __volatile__( \
|
|
".set\tpush\n\t" \
|
|
".set\treorder\n\t" \
|
|
"cfc1\t%0,"STR(source)"\n\t" \
|
|
".set\tpop" \
|
|
: "=r" (__res)); \
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|
__res;})
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
__asm__ __volatile__(
|
|
".set noreorder\n\t"
|
|
"tlbr\n\t"
|
|
".set reorder");
|
|
}
|
|
|
|
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) \
|
|
{ \
|
|
unsigned int res; \
|
|
\
|
|
res = read_c0_##name(); \
|
|
res |= set; \
|
|
write_c0_##name(res); \
|
|
\
|
|
return res; \
|
|
} \
|
|
\
|
|
static inline unsigned int \
|
|
clear_c0_##name(unsigned int clear) \
|
|
{ \
|
|
unsigned int res; \
|
|
\
|
|
res = read_c0_##name(); \
|
|
res &= ~clear; \
|
|
write_c0_##name(res); \
|
|
\
|
|
return res; \
|
|
} \
|
|
\
|
|
static inline unsigned int \
|
|
change_c0_##name(unsigned int change, unsigned int new) \
|
|
{ \
|
|
unsigned int res; \
|
|
\
|
|
res = read_c0_##name(); \
|
|
res &= ~change; \
|
|
res |= (new & change); \
|
|
write_c0_##name(res); \
|
|
\
|
|
return res; \
|
|
}
|
|
|
|
__BUILD_SET_C0(status)
|
|
__BUILD_SET_C0(cause)
|
|
__BUILD_SET_C0(config)
|
|
__BUILD_SET_C0(intcontrol)
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#endif /* _ASM_MIPSREGS_H */
|