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1146 lines
39 KiB
1146 lines
39 KiB
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-12-04 Jiaxun Yang Initial version
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*/
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#ifndef _MIPS_REGS_H_
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#define _MIPS_REGS_H_
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#include <rtconfig.h>
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#define REG_A0 4
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#define REG_SP 29
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#define REG_GP 28
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#define REG_FP 30
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#define REG_RA 31
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#ifndef ARCH_MIPS64
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#define zero $0 /* wired zero */
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#define AT $1 /* assembler temp - uppercase because of ".set at" */
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#define v0 $2 /* return value */
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#define v1 $3
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#define a0 $4 /* argument registers */
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#define a1 $5
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#define a2 $6
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#define a3 $7
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#define t0 $8 /* caller saved */
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#define t1 $9
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#define t2 $10
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#define t3 $11
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#define t4 $12
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#define ta0 $12
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#define t5 $13
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#define ta1 $13
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#define t6 $14
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#define ta2 $14
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#define t7 $15
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#define ta3 $15
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#define s0 $16 /* callee saved */
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#define s1 $17
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#define s2 $18
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#define s3 $19
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#define s4 $20
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#define s5 $21
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#define s6 $22
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#define s7 $23
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#define t8 $24 /* caller saved */
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#define t9 $25
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#define jp $25 /* PIC jump register */
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#define k0 $26 /* kernel scratch */
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#define k1 $27
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#define gp $28 /* global pointer */
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#define sp $29 /* stack pointer */
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#define fp $30 /* frame pointer */
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#define s8 $30 /* same like fp! */
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#define ra $31 /* return address */
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#else
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#define zero $0 /* wired zero */
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#define AT $at /* assembler temp - uppercase because of ".set at" */
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#define v0 $2 /* return value - caller saved */
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#define v1 $3
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#define a0 $4 /* argument registers */
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#define a1 $5
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#define a2 $6
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#define a3 $7
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#define a4 $8 /* arg reg 64 bit; caller saved in 32 bit */
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#define ta0 $8
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#define a5 $9
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#define ta1 $9
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#define a6 $10
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#define ta2 $10
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#define a7 $11
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#define ta3 $11
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#define t0 $12 /* caller saved */
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#define t1 $13
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#define t2 $14
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#define t3 $15
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#define s0 $16 /* callee saved */
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#define s1 $17
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#define s2 $18
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#define s3 $19
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#define s4 $20
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#define s5 $21
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#define s6 $22
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#define s7 $23
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#define t8 $24 /* caller saved */
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#define t9 $25 /* callee address for PIC/temp */
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#define jp $25 /* PIC jump register */
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#define k0 $26 /* kernel temporary */
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#define k1 $27
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#define gp $28 /* global pointer - caller saved for PIC */
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#define sp $29 /* stack pointer */
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#define fp $30 /* frame pointer */
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#define s8 $30 /* callee saved */
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#define ra $31 /* return address */
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#endif
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#define fv0 $f0 /* return value */
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#define fv0f $f1
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#define fv1 $f2
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#define fv1f $f3
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#define fa0 $f12 /* argument registers */
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#define fa0f $f13
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#define fa1 $f14
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#define fa1f $f15
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#define ft0 $f4 /* caller saved */
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#define ft0f $f5
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#define ft1 $f6
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#define ft1f $f7
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#define ft2 $f8
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#define ft2f $f9
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#define ft3 $f10
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#define ft3f $f11
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#define ft4 $f16
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#define ft4f $f17
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#define ft5 $f18
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#define ft5f $f19
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#define fs0 $f20 /* callee saved */
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#define fs0f $f21
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#define fs1 $f22
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#define fs1f $f23
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#define fs2 $f24
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#define fs2f $f25
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#define fs3 $f26
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#define fs3f $f27
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#define fs4 $f28
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#define fs4f $f29
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#define fs5 $f30
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#define fs5f $f31
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#define fcr31 $31 /* FPU status register */
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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_UFR $1
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#define CP1_UNFR $4
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#define CP1_FCCR $25
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#define CP1_FEXR $26
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#define CP1_FENR $28
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#define CP1_STATUS $31
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/*
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* Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
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*/
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#define MIPS_FPIR_S (_ULCAST_(1) << 16)
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#define MIPS_FPIR_D (_ULCAST_(1) << 17)
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#define MIPS_FPIR_PS (_ULCAST_(1) << 18)
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#define MIPS_FPIR_3D (_ULCAST_(1) << 19)
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#define MIPS_FPIR_W (_ULCAST_(1) << 20)
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#define MIPS_FPIR_L (_ULCAST_(1) << 21)
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#define MIPS_FPIR_F64 (_ULCAST_(1) << 22)
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#define MIPS_FPIR_HAS2008 (_ULCAST_(1) << 23)
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#define MIPS_FPIR_UFRP (_ULCAST_(1) << 28)
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#define MIPS_FPIR_FREP (_ULCAST_(1) << 29)
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/*
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* Bits in the MIPS32/64 coprocessor 1 (FPU) condition codes register.
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*/
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#define MIPS_FCCR_CONDX_S 0
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#define MIPS_FCCR_CONDX (_ULCAST_(255) << MIPS_FCCR_CONDX_S)
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#define MIPS_FCCR_COND0_S 0
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#define MIPS_FCCR_COND0 (_ULCAST_(1) << MIPS_FCCR_COND0_S)
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#define MIPS_FCCR_COND1_S 1
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#define MIPS_FCCR_COND1 (_ULCAST_(1) << MIPS_FCCR_COND1_S)
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#define MIPS_FCCR_COND2_S 2
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#define MIPS_FCCR_COND2 (_ULCAST_(1) << MIPS_FCCR_COND2_S)
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#define MIPS_FCCR_COND3_S 3
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#define MIPS_FCCR_COND3 (_ULCAST_(1) << MIPS_FCCR_COND3_S)
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#define MIPS_FCCR_COND4_S 4
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#define MIPS_FCCR_COND4 (_ULCAST_(1) << MIPS_FCCR_COND4_S)
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#define MIPS_FCCR_COND5_S 5
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#define MIPS_FCCR_COND5 (_ULCAST_(1) << MIPS_FCCR_COND5_S)
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#define MIPS_FCCR_COND6_S 6
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#define MIPS_FCCR_COND6 (_ULCAST_(1) << MIPS_FCCR_COND6_S)
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#define MIPS_FCCR_COND7_S 7
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#define MIPS_FCCR_COND7 (_ULCAST_(1) << MIPS_FCCR_COND7_S)
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/*
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* Bits in the MIPS32/64 coprocessor 1 (FPU) enables register.
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*/
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#define MIPS_FENR_FS_S 2
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#define MIPS_FENR_FS (_ULCAST_(1) << MIPS_FENR_FS_S)
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/*
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* FPU Status Register Values
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*/
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#define FPU_CSR_COND_S 23 /* $fcc0 */
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#define FPU_CSR_COND (_ULCAST_(1) << FPU_CSR_COND_S)
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#define FPU_CSR_FS_S 24 /* flush denormalised results to 0 */
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#define FPU_CSR_FS (_ULCAST_(1) << FPU_CSR_FS_S)
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#define FPU_CSR_FO 0x00400000
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#define FPU_CSR_FN 0x00200000
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#define FPU_CSR_CONDX_S 25 /* $fcc[7:1] */
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#define FPU_CSR_CONDX (_ULCAST_(127) << FPU_CSR_CONDX_S)
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#define FPU_CSR_COND1_S 25 /* $fcc1 */
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#define FPU_CSR_COND1 (_ULCAST_(1) << FPU_CSR_COND1_S)
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#define FPU_CSR_COND2_S 26 /* $fcc2 */
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#define FPU_CSR_COND2 (_ULCAST_(1) << FPU_CSR_COND2_S)
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#define FPU_CSR_COND3_S 27 /* $fcc3 */
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#define FPU_CSR_COND3 (_ULCAST_(1) << FPU_CSR_COND3_S)
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#define FPU_CSR_COND4_S 28 /* $fcc4 */
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#define FPU_CSR_COND4 (_ULCAST_(1) << FPU_CSR_COND4_S)
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#define FPU_CSR_COND5_S 29 /* $fcc5 */
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#define FPU_CSR_COND5 (_ULCAST_(1) << FPU_CSR_COND5_S)
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#define FPU_CSR_COND6_S 30 /* $fcc6 */
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#define FPU_CSR_COND6 (_ULCAST_(1) << FPU_CSR_COND6_S)
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#define FPU_CSR_COND7_S 31 /* $fcc7 */
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#define FPU_CSR_COND7 (_ULCAST_(1) << FPU_CSR_COND7_S)
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/*
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* Bits 22:20 of the FPU Status Register will be read as 0,
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* and should be written as zero.
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*/
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#define FPU_CSR_RSVD (_ULCAST_(7) << 20)
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#define FPU_CSR_ABS2008 (_ULCAST_(1) << 19)
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#define FPU_CSR_NAN2008 (_ULCAST_(1) << 18)
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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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/* Bits 0 and 1 of FPU Status Register specify the rounding mode */
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#define FPU_CSR_RM 0x00000003
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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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#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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/*
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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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* 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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* 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
|
|
#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)
|
|
#define ST0_CH 0x00040000
|
|
#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_CU1_SHIFT 29
|
|
#define ST0_CU2 0x40000000
|
|
#define ST0_CU3 0x80000000
|
|
#define ST0_XX 0x80000000 /* MIPS IV naming */
|
|
|
|
/*
|
|
* Bitfields and bit numbers in the coprocessor 0 cause register.
|
|
*
|
|
* Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
|
|
*/
|
|
#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_CE 28
|
|
#define CAUSEF_CE (_ULCAST_(3) << 28)
|
|
#define CAUSEB_BD 31
|
|
#define CAUSEF_BD (_ULCAST_(1) << 31)
|
|
|
|
/*
|
|
* 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. */
|
|
#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)
|
|
#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)
|
|
|
|
/* Bits specific to the R4xx0. */
|
|
#define R4K_CONF_SW (_ULCAST_(1) << 20)
|
|
#define R4K_CONF_SS (_ULCAST_(1) << 21)
|
|
#define R4K_CONF_SB (_ULCAST_(3) << 22)
|
|
|
|
/* Bits specific to the R5000. */
|
|
#define R5K_CONF_SE (_ULCAST_(1) << 12)
|
|
#define R5K_CONF_SS (_ULCAST_(3) << 20)
|
|
|
|
/* 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)
|
|
#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)
|
|
|
|
/* Bits specific to the VR41xx. */
|
|
#define VR41_CONF_CS (_ULCAST_(1) << 12)
|
|
#define VR41_CONF_M16 (_ULCAST_(1) << 20)
|
|
#define VR41_CONF_AD (_ULCAST_(1) << 23)
|
|
|
|
/* Bits specific to the R30xx. */
|
|
#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)
|
|
|
|
/* 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 priviledge 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__
|
|
|
|
#define CAUSE_EXCCODE(x) ((CAUSEF_EXCCODE & (x->cp0_cause)) >> CAUSEB_EXCCODE)
|
|
#define CAUSE_EPC(x) (x->cp0_epc + (((x->cp0_cause & CAUSEF_BD) >> CAUSEB_BD) << 2))
|
|
|
|
/*
|
|
* Functions to access the r10k performance counter and control registers
|
|
*/
|
|
#define read_r10k_perf_cntr(counter) \
|
|
({ unsigned int __res; \
|
|
__asm__ __volatile__( \
|
|
"mfpc\t%0, "STR(counter) \
|
|
: "=r" (__res)); \
|
|
__res;})
|
|
|
|
#define write_r10k_perf_cntr(counter,val) \
|
|
__asm__ __volatile__( \
|
|
"mtpc\t%0, "STR(counter) \
|
|
: : "r" (val));
|
|
|
|
#define read_r10k_perf_cntl(counter) \
|
|
({ unsigned int __res; \
|
|
__asm__ __volatile__( \
|
|
"mfps\t%0, "STR(counter) \
|
|
: "=r" (__res)); \
|
|
__res;})
|
|
|
|
#define write_r10k_perf_cntl(counter,val) \
|
|
__asm__ __volatile__( \
|
|
"mtps\t%0, "STR(counter) \
|
|
: : "r" (val));
|
|
|
|
/*
|
|
* 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 __res; \
|
|
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" (value)); \
|
|
else \
|
|
__asm__ __volatile__( \
|
|
".set\tmips32\n\t" \
|
|
"mtc0\t%z0, " #register ", " #sel "\n\t" \
|
|
".set\tmips0" \
|
|
: : "Jr" (value)); \
|
|
} while (0)
|
|
|
|
#define __write_64bit_c0_register(register, sel, value) \
|
|
do { \
|
|
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) ? \
|
|
__read_32bit_c0_register(reg, sel) : \
|
|
__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)
|
|
|
|
/*
|
|
* 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_prid() __read_32bit_c0_register($15, 0)
|
|
|
|
#define read_c0_ebase() __read_32bit_c0_register($15, 1)
|
|
#define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val)
|
|
|
|
#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 write_c0_config(val) __write_32bit_c0_register($16, 0, val)
|
|
#define write_c0_config1(val) __write_32bit_c0_register($16, 1, val)
|
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#define write_c0_config2(val) __write_32bit_c0_register($16, 2, val)
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#define write_c0_config3(val) __write_32bit_c0_register($16, 3, val)
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/*
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* The WatchLo register. There may be upto 8 of them.
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*/
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#define read_c0_watchlo0() __read_ulong_c0_register($18, 0)
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#define read_c0_watchlo1() __read_ulong_c0_register($18, 1)
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#define read_c0_watchlo2() __read_ulong_c0_register($18, 2)
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#define read_c0_watchlo3() __read_ulong_c0_register($18, 3)
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#define read_c0_watchlo4() __read_ulong_c0_register($18, 4)
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#define read_c0_watchlo5() __read_ulong_c0_register($18, 5)
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#define read_c0_watchlo6() __read_ulong_c0_register($18, 6)
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#define read_c0_watchlo7() __read_ulong_c0_register($18, 7)
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#define write_c0_watchlo0(val) __write_ulong_c0_register($18, 0, val)
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#define write_c0_watchlo1(val) __write_ulong_c0_register($18, 1, val)
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#define write_c0_watchlo2(val) __write_ulong_c0_register($18, 2, val)
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#define write_c0_watchlo3(val) __write_ulong_c0_register($18, 3, val)
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#define write_c0_watchlo4(val) __write_ulong_c0_register($18, 4, val)
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#define write_c0_watchlo5(val) __write_ulong_c0_register($18, 5, val)
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#define write_c0_watchlo6(val) __write_ulong_c0_register($18, 6, val)
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#define write_c0_watchlo7(val) __write_ulong_c0_register($18, 7, val)
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/*
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* The WatchHi register. There may be upto 8 of them.
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*/
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#define read_c0_watchhi0() __read_32bit_c0_register($19, 0)
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#define read_c0_watchhi1() __read_32bit_c0_register($19, 1)
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#define read_c0_watchhi2() __read_32bit_c0_register($19, 2)
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#define read_c0_watchhi3() __read_32bit_c0_register($19, 3)
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#define read_c0_watchhi4() __read_32bit_c0_register($19, 4)
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#define read_c0_watchhi5() __read_32bit_c0_register($19, 5)
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#define read_c0_watchhi6() __read_32bit_c0_register($19, 6)
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#define read_c0_watchhi7() __read_32bit_c0_register($19, 7)
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#define write_c0_watchhi0(val) __write_32bit_c0_register($19, 0, val)
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#define write_c0_watchhi1(val) __write_32bit_c0_register($19, 1, val)
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#define write_c0_watchhi2(val) __write_32bit_c0_register($19, 2, val)
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#define write_c0_watchhi3(val) __write_32bit_c0_register($19, 3, val)
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#define write_c0_watchhi4(val) __write_32bit_c0_register($19, 4, val)
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#define write_c0_watchhi5(val) __write_32bit_c0_register($19, 5, val)
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#define write_c0_watchhi6(val) __write_32bit_c0_register($19, 6, val)
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#define write_c0_watchhi7(val) __write_32bit_c0_register($19, 7, val)
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#define read_c0_xcontext() __read_ulong_c0_register($20, 0)
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#define write_c0_xcontext(val) __write_ulong_c0_register($20, 0, val)
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#define read_c0_intcontrol() __read_32bit_c0_register($20, 1)
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#define write_c0_intcontrol(val) __write_32bit_c0_register($20, 1, val)
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#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_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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#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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#define read_c0_epc() __read_ulong_c0_register($14, 0)
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#define write_c0_epc(val) __write_ulong_c0_register($14, 0, val)
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#if 1
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/*
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* Macros to access the system control coprocessor
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*/
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#define read_32bit_cp0_register(source) \
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({ int __res; \
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__asm__ __volatile__( \
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".set\tpush\n\t" \
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".set\treorder\n\t" \
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"mfc0\t%0,"STR(source)"\n\t" \
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".set\tpop" \
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: "=r" (__res)); \
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__res;})
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#define read_32bit_cp0_set1_register(source) \
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({ int __res; \
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__asm__ __volatile__( \
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".set\tpush\n\t" \
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".set\treorder\n\t" \
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"cfc0\t%0,"STR(source)"\n\t" \
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".set\tpop" \
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: "=r" (__res)); \
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__res;})
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/*
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* For now use this only with interrupts disabled!
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*/
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#define read_64bit_cp0_register(source) \
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({ int __res; \
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__asm__ __volatile__( \
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".set\tmips3\n\t" \
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"dmfc0\t%0,"STR(source)"\n\t" \
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".set\tmips0" \
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: "=r" (__res)); \
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__res;})
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#define write_32bit_cp0_register(register,value) \
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__asm__ __volatile__( \
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"mtc0\t%0,"STR(register)"\n\t" \
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"nop" \
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: : "r" (value));
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#define write_32bit_cp0_set1_register(register,value) \
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__asm__ __volatile__( \
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"ctc0\t%0,$"STR(register)"\n\t" \
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"nop" \
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: : "r" (value));
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#define write_64bit_cp0_register(register,value) \
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__asm__ __volatile__( \
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".set\tmips3\n\t" \
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"dmtc0\t%0,"STR(register)"\n\t" \
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".set\tmips0" \
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: : "r" (value))
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/*
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* This should be changed when we get a compiler that support the MIPS32 ISA.
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|
*/
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#define read_mips32_cp0_config1() \
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({ int __res; \
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__asm__ __volatile__( \
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".set\tnoreorder\n\t" \
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|
".set\tnoat\n\t" \
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"#.set\tmips64\n\t" \
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"#mfc0\t$1, $16, 1\n\t" \
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"#.set\tmips0\n\t" \
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|
".word\t0x40018001\n\t" \
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"move\t%0,$1\n\t" \
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|
".set\tat\n\t" \
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|
".set\treorder" \
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|
:"=r" (__res)); \
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|
__res;})
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|
#endif
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|
/*
|
|
* Macros to access the floating point coprocessor control registers
|
|
*/
|
|
#define read_32bit_cp1_register(source) \
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|
({ int __res; \
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|
__asm__ __volatile__( \
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|
".set\tpush\n\t" \
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|
".set\treorder\n\t" \
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|
"cfc1\t%0,$"STR(source)"\n\t" \
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|
".set\tpop" \
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: "=r" (__res)); \
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|
__res;})
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|
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|
#define write_32bit_cp1_register(register,value) \
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|
__asm__ __volatile__( \
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|
"ctc1\t%0,$"STR(register)"\n\t" \
|
|
"nop" \
|
|
: : "r" (value));
|
|
|
|
/* TLB operations. */
|
|
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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|
__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,register) \
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|
static inline unsigned int \
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|
set_c0_##name(unsigned int set) \
|
|
{ \
|
|
unsigned int res; \
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|
\
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|
res = read_c0_##name(); \
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|
res |= set; \
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|
write_c0_##name(res); \
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|
\
|
|
return res; \
|
|
} \
|
|
\
|
|
static inline unsigned int \
|
|
clear_c0_##name(unsigned int clear) \
|
|
{ \
|
|
unsigned int res; \
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|
\
|
|
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,CP0_STATUS)
|
|
__BUILD_SET_C0(cause,CP0_CAUSE)
|
|
__BUILD_SET_C0(config,CP0_CONFIG)
|
|
|
|
#define set_cp0_status(x) set_c0_status(x)
|
|
#define set_cp0_cause(x) set_c0_cause(x)
|
|
#define set_cp0_config(x) set_c0_config(x)
|
|
|
|
#define read_c1_status() read_32bit_cp1_register(31)
|
|
#define write_c1_status(x) write_32bit_cp1_register(31, x)
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|
|
|
#define readb(reg) (*((volatile unsigned char *) (reg)))
|
|
#define readw(reg) (*((volatile unsigned short *) (reg)))
|
|
#define readl(reg) (*((volatile unsigned int *) (reg)))
|
|
|
|
#define writeb(data, reg) ((*((volatile unsigned char *)(reg))) = (unsigned char)(data))
|
|
#define writew(data, reg) ((*((volatile unsigned short *)(reg))) = (unsigned short)(data))
|
|
#define writel(data, reg) ((*((volatile unsigned int *)(reg))) = (unsigned int)(data))
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#endif /* _MIPS_REGS_H_ */
|
|
|