| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle |
| * Copyright (C) 2000 Silicon Graphics, Inc. |
| * Modified for further R[236]000 support by Paul M. Antoine, 1996. |
| * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com |
| * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. |
| * Copyright (C) 2003 Maciej W. Rozycki |
| */ |
| #ifndef _ASM_MIPSREGS_H |
| #define _ASM_MIPSREGS_H |
| |
| #if 0 |
| #include <linux/linkage.h> |
| #endif |
| |
| /* |
| * The following macros are especially useful for __asm__ |
| * inline assembler. |
| */ |
| #ifndef __STR |
| #define __STR(x) #x |
| #endif |
| #ifndef STR |
| #define STR(x) __STR(x) |
| #endif |
| |
| /* |
| * Coprocessor 0 register names |
| */ |
| #define CP0_INDEX $0 |
| #define CP0_RANDOM $1 |
| #define CP0_ENTRYLO0 $2 |
| #define CP0_ENTRYLO1 $3 |
| #define CP0_CONF $3 |
| #define CP0_CONTEXT $4 |
| #define CP0_PAGEMASK $5 |
| #define CP0_WIRED $6 |
| #define CP0_INFO $7 |
| #define CP0_BADVADDR $8 |
| #define CP0_COUNT $9 |
| #define CP0_ENTRYHI $10 |
| #define CP0_COMPARE $11 |
| #define CP0_STATUS $12 |
| #define CP0_CAUSE $13 |
| #define CP0_EPC $14 |
| #define CP0_PRID $15 |
| #define CP0_CONFIG $16 |
| #define CP0_LLADDR $17 |
| #define CP0_WATCHLO $18 |
| #define CP0_WATCHHI $19 |
| #define CP0_XCONTEXT $20 |
| #define CP0_FRAMEMASK $21 |
| #define CP0_DIAGNOSTIC $22 |
| #define CP0_PERFORMANCE $25 |
| #define CP0_ECC $26 |
| #define CP0_CACHEERR $27 |
| #define CP0_TAGLO $28 |
| #define CP0_TAGHI $29 |
| #define CP0_ERROREPC $30 |
| |
| /* |
| * R4640/R4650 cp0 register names. These registers are listed |
| * here only for completeness; without MMU these CPUs are not useable |
| * by Linux. A future ELKS port might take make Linux run on them |
| * though ... |
| */ |
| #define CP0_IBASE $0 |
| #define CP0_IBOUND $1 |
| #define CP0_DBASE $2 |
| #define CP0_DBOUND $3 |
| #define CP0_CALG $17 |
| #define CP0_IWATCH $18 |
| #define CP0_DWATCH $19 |
| |
| /* |
| * Coprocessor 0 Set 1 register names |
| */ |
| #define CP0_S1_DERRADDR0 $26 |
| #define CP0_S1_DERRADDR1 $27 |
| #define CP0_S1_INTCONTROL $20 |
| /* |
| * Coprocessor 1 (FPU) register names |
| */ |
| #define CP1_REVISION $0 |
| #define CP1_STATUS $31 |
| |
| /* |
| * FPU Status Register Values |
| */ |
| /* |
| * Status Register Values |
| */ |
| |
| #define FPU_CSR_FLUSH 0x01000000 /* flush denormalised results to 0 */ |
| #define FPU_CSR_COND 0x00800000 /* $fcc0 */ |
| #define FPU_CSR_COND0 0x00800000 /* $fcc0 */ |
| #define FPU_CSR_COND1 0x02000000 /* $fcc1 */ |
| #define FPU_CSR_COND2 0x04000000 /* $fcc2 */ |
| #define FPU_CSR_COND3 0x08000000 /* $fcc3 */ |
| #define FPU_CSR_COND4 0x10000000 /* $fcc4 */ |
| #define FPU_CSR_COND5 0x20000000 /* $fcc5 */ |
| #define FPU_CSR_COND6 0x40000000 /* $fcc6 */ |
| #define FPU_CSR_COND7 0x80000000 /* $fcc7 */ |
| |
| /* |
| * X the exception cause indicator |
| * E the exception enable |
| * S the sticky/flag bit |
| */ |
| #define FPU_CSR_ALL_X 0x0003f000 |
| #define FPU_CSR_UNI_X 0x00020000 |
| #define FPU_CSR_INV_X 0x00010000 |
| #define FPU_CSR_DIV_X 0x00008000 |
| #define FPU_CSR_OVF_X 0x00004000 |
| #define FPU_CSR_UDF_X 0x00002000 |
| #define FPU_CSR_INE_X 0x00001000 |
| |
| #define FPU_CSR_ALL_E 0x00000f80 |
| #define FPU_CSR_INV_E 0x00000800 |
| #define FPU_CSR_DIV_E 0x00000400 |
| #define FPU_CSR_OVF_E 0x00000200 |
| #define FPU_CSR_UDF_E 0x00000100 |
| #define FPU_CSR_INE_E 0x00000080 |
| |
| #define FPU_CSR_ALL_S 0x0000007c |
| #define FPU_CSR_INV_S 0x00000040 |
| #define FPU_CSR_DIV_S 0x00000020 |
| #define FPU_CSR_OVF_S 0x00000010 |
| #define FPU_CSR_UDF_S 0x00000008 |
| #define FPU_CSR_INE_S 0x00000004 |
| |
| /* rounding mode */ |
| #define FPU_CSR_RN 0x0 /* nearest */ |
| #define FPU_CSR_RZ 0x1 /* towards zero */ |
| #define FPU_CSR_RU 0x2 /* towards +Infinity */ |
| #define FPU_CSR_RD 0x3 /* towards -Infinity */ |
| |
| |
| /* |
| * Values for PageMask register |
| */ |
| #include <linux/config.h> |
| #ifdef CONFIG_CPU_VR41XX |
| #define PM_1K 0x00000000 |
| #define PM_4K 0x00001800 |
| #define PM_16K 0x00007800 |
| #define PM_64K 0x0001f800 |
| #define PM_256K 0x0007f800 |
| #else |
| #define PM_4K 0x00000000 |
| #define PM_16K 0x00006000 |
| #define PM_64K 0x0001e000 |
| #define PM_256K 0x0007e000 |
| #define PM_1M 0x001fe000 |
| #define PM_4M 0x007fe000 |
| #define PM_16M 0x01ffe000 |
| #endif |
| |
| /* |
| * Values used for computation of new tlb entries |
| */ |
| #define PL_4K 12 |
| #define PL_16K 14 |
| #define PL_64K 16 |
| #define PL_256K 18 |
| #define PL_1M 20 |
| #define PL_4M 22 |
| #define PL_16M 24 |
| |
| /* |
| * Macros to access the system control coprocessor |
| */ |
| #define read_32bit_cp0_register(source) \ |
| ({ int __res; \ |
| __asm__ __volatile__( \ |
| ".set\tpush\n\t" \ |
| ".set\treorder\n\t" \ |
| "mfc0\t%0,"STR(source)"\n\t" \ |
| ".set\tpop" \ |
| : "=r" (__res)); \ |
| __res;}) |
| |
| #define read_32bit_cp0_set1_register(source) \ |
| ({ int __res; \ |
| __asm__ __volatile__( \ |
| ".set\tpush\n\t" \ |
| ".set\treorder\n\t" \ |
| "cfc0\t%0,"STR(source)"\n\t" \ |
| ".set\tpop" \ |
| : "=r" (__res)); \ |
| __res;}) |
| |
| /* |
| * For now use this only with interrupts disabled! |
| */ |
| #define read_64bit_cp0_register(source) \ |
| ({ int __res; \ |
| __asm__ __volatile__( \ |
| ".set\tmips3\n\t" \ |
| "dmfc0\t%0,"STR(source)"\n\t" \ |
| ".set\tmips0" \ |
| : "=r" (__res)); \ |
| __res;}) |
| |
| #define write_32bit_cp0_register(register,value) \ |
| __asm__ __volatile__( \ |
| "mtc0\t%0,"STR(register)"\n\t" \ |
| "nop" \ |
| : : "r" (value)); |
| |
| #define write_32bit_cp0_set1_register(register,value) \ |
| __asm__ __volatile__( \ |
| "ctc0\t%0,"STR(register)"\n\t" \ |
| "nop" \ |
| : : "r" (value)); |
| |
| #define write_64bit_cp0_register(register,value) \ |
| __asm__ __volatile__( \ |
| ".set\tmips3\n\t" \ |
| "dmtc0\t%0,"STR(register)"\n\t" \ |
| ".set\tmips0" \ |
| : : "r" (value)) |
| |
| /* |
| * This should be changed when we get a compiler that support the MIPS32 ISA. |
| */ |
| #define read_mips32_cp0_config1() \ |
| ({ int __res; \ |
| __asm__ __volatile__( \ |
| ".set\tnoreorder\n\t" \ |
| ".set\tnoat\n\t" \ |
| ".word\t0x40018001\n\t" \ |
| "move\t%0,$1\n\t" \ |
| ".set\tat\n\t" \ |
| ".set\treorder" \ |
| :"=r" (__res)); \ |
| __res;}) |
| |
| #define tlb_write_indexed() \ |
| __asm__ __volatile__( \ |
| ".set noreorder\n\t" \ |
| "tlbwi\n\t" \ |
| ".set reorder") |
| |
| /* |
| * R4x00 interrupt enable / cause bits |
| */ |
| #define IE_SW0 (1<< 8) |
| #define IE_SW1 (1<< 9) |
| #define IE_IRQ0 (1<<10) |
| #define IE_IRQ1 (1<<11) |
| #define IE_IRQ2 (1<<12) |
| #define IE_IRQ3 (1<<13) |
| #define IE_IRQ4 (1<<14) |
| #define IE_IRQ5 (1<<15) |
| |
| /* |
| * R4x00 interrupt cause bits |
| */ |
| #define C_SW0 (1<< 8) |
| #define C_SW1 (1<< 9) |
| #define C_IRQ0 (1<<10) |
| #define C_IRQ1 (1<<11) |
| #define C_IRQ2 (1<<12) |
| #define C_IRQ3 (1<<13) |
| #define C_IRQ4 (1<<14) |
| #define C_IRQ5 (1<<15) |
| |
| #ifndef _LANGUAGE_ASSEMBLY |
| /* |
| * Manipulate the status register. |
| * Mostly used to access the interrupt bits. |
| */ |
| #define __BUILD_SET_CP0(name,register) \ |
| extern __inline__ unsigned int \ |
| set_cp0_##name(unsigned int set) \ |
| { \ |
| unsigned int res; \ |
| \ |
| res = read_32bit_cp0_register(register); \ |
| res |= set; \ |
| write_32bit_cp0_register(register, res); \ |
| \ |
| return res; \ |
| } \ |
| \ |
| extern __inline__ unsigned int \ |
| clear_cp0_##name(unsigned int clear) \ |
| { \ |
| unsigned int res; \ |
| \ |
| res = read_32bit_cp0_register(register); \ |
| res &= ~clear; \ |
| write_32bit_cp0_register(register, res); \ |
| \ |
| return res; \ |
| } \ |
| \ |
| extern __inline__ unsigned int \ |
| change_cp0_##name(unsigned int change, unsigned int new) \ |
| { \ |
| unsigned int res; \ |
| \ |
| res = read_32bit_cp0_register(register); \ |
| res &= ~change; \ |
| res |= (new & change); \ |
| if(change) \ |
| write_32bit_cp0_register(register, res); \ |
| \ |
| return res; \ |
| } |
| |
| __BUILD_SET_CP0(status,CP0_STATUS) |
| __BUILD_SET_CP0(cause,CP0_CAUSE) |
| __BUILD_SET_CP0(config,CP0_CONFIG) |
| |
| #endif /* defined (_LANGUAGE_ASSEMBLY) */ |
| |
| /* |
| * Bitfields in the R4xx0 cp0 status register |
| */ |
| #define ST0_IE 0x00000001 |
| #define ST0_EXL 0x00000002 |
| #define ST0_ERL 0x00000004 |
| #define ST0_KSU 0x00000018 |
| # define KSU_USER 0x00000010 |
| # define KSU_SUPERVISOR 0x00000008 |
| # define KSU_KERNEL 0x00000000 |
| #define ST0_UX 0x00000020 |
| #define ST0_SX 0x00000040 |
| #define ST0_KX 0x00000080 |
| #define ST0_DE 0x00010000 |
| #define ST0_CE 0x00020000 |
| |
| /* |
| * Bitfields in the R[23]000 cp0 status register. |
| */ |
| #define ST0_IEC 0x00000001 |
| #define ST0_KUC 0x00000002 |
| #define ST0_IEP 0x00000004 |
| #define ST0_KUP 0x00000008 |
| #define ST0_IEO 0x00000010 |
| #define ST0_KUO 0x00000020 |
| /* bits 6 & 7 are reserved on R[23]000 */ |
| #define ST0_ISC 0x00010000 |
| #define ST0_SWC 0x00020000 |
| #define ST0_CM 0x00080000 |
| |
| /* |
| * Bits specific to the R4640/R4650 |
| */ |
| #define ST0_UM (1 << 4) |
| #define ST0_IL (1 << 23) |
| #define ST0_DL (1 << 24) |
| |
| /* |
| * Bitfields in the TX39 family CP0 Configuration Register 3 |
| */ |
| #define TX39_CONF_ICS_SHIFT 19 |
| #define TX39_CONF_ICS_MASK 0x00380000 |
| #define TX39_CONF_ICS_1KB 0x00000000 |
| #define TX39_CONF_ICS_2KB 0x00080000 |
| #define TX39_CONF_ICS_4KB 0x00100000 |
| #define TX39_CONF_ICS_8KB 0x00180000 |
| #define TX39_CONF_ICS_16KB 0x00200000 |
| |
| #define TX39_CONF_DCS_SHIFT 16 |
| #define TX39_CONF_DCS_MASK 0x00070000 |
| #define TX39_CONF_DCS_1KB 0x00000000 |
| #define TX39_CONF_DCS_2KB 0x00010000 |
| #define TX39_CONF_DCS_4KB 0x00020000 |
| #define TX39_CONF_DCS_8KB 0x00030000 |
| #define TX39_CONF_DCS_16KB 0x00040000 |
| |
| #define TX39_CONF_CWFON 0x00004000 |
| #define TX39_CONF_WBON 0x00002000 |
| #define TX39_CONF_RF_SHIFT 10 |
| #define TX39_CONF_RF_MASK 0x00000c00 |
| #define TX39_CONF_DOZE 0x00000200 |
| #define TX39_CONF_HALT 0x00000100 |
| #define TX39_CONF_LOCK 0x00000080 |
| #define TX39_CONF_ICE 0x00000020 |
| #define TX39_CONF_DCE 0x00000010 |
| #define TX39_CONF_IRSIZE_SHIFT 2 |
| #define TX39_CONF_IRSIZE_MASK 0x0000000c |
| #define TX39_CONF_DRSIZE_SHIFT 0 |
| #define TX39_CONF_DRSIZE_MASK 0x00000003 |
| |
| /* |
| * Status register bits available in all MIPS CPUs. |
| */ |
| #define ST0_IM 0x0000ff00 |
| #define STATUSB_IP0 8 |
| #define STATUSF_IP0 (1 << 8) |
| #define STATUSB_IP1 9 |
| #define STATUSF_IP1 (1 << 9) |
| #define STATUSB_IP2 10 |
| #define STATUSF_IP2 (1 << 10) |
| #define STATUSB_IP3 11 |
| #define STATUSF_IP3 (1 << 11) |
| #define STATUSB_IP4 12 |
| #define STATUSF_IP4 (1 << 12) |
| #define STATUSB_IP5 13 |
| #define STATUSF_IP5 (1 << 13) |
| #define STATUSB_IP6 14 |
| #define STATUSF_IP6 (1 << 14) |
| #define STATUSB_IP7 15 |
| #define STATUSF_IP7 (1 << 15) |
| #define STATUSB_IP8 0 |
| #define STATUSF_IP8 (1 << 0) |
| #define STATUSB_IP9 1 |
| #define STATUSF_IP9 (1 << 1) |
| #define STATUSB_IP10 2 |
| #define STATUSF_IP10 (1 << 2) |
| #define STATUSB_IP11 3 |
| #define STATUSF_IP11 (1 << 3) |
| #define STATUSB_IP12 4 |
| #define STATUSF_IP12 (1 << 4) |
| #define STATUSB_IP13 5 |
| #define STATUSF_IP13 (1 << 5) |
| #define STATUSB_IP14 6 |
| #define STATUSF_IP14 (1 << 6) |
| #define STATUSB_IP15 7 |
| #define STATUSF_IP15 (1 << 7) |
| #define ST0_CH 0x00040000 |
| #define ST0_SR 0x00100000 |
| #define ST0_BEV 0x00400000 |
| #define ST0_RE 0x02000000 |
| #define ST0_FR 0x04000000 |
| #define ST0_CU 0xf0000000 |
| #define ST0_CU0 0x10000000 |
| #define ST0_CU1 0x20000000 |
| #define ST0_CU2 0x40000000 |
| #define ST0_CU3 0x80000000 |
| #define ST0_XX 0x80000000 /* MIPS IV naming */ |
| |
| /* |
| * 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 (31 << 2) |
| #define CAUSEB_IP 8 |
| #define CAUSEF_IP (255 << 8) |
| #define CAUSEB_IP0 8 |
| #define CAUSEF_IP0 (1 << 8) |
| #define CAUSEB_IP1 9 |
| #define CAUSEF_IP1 (1 << 9) |
| #define CAUSEB_IP2 10 |
| #define CAUSEF_IP2 (1 << 10) |
| #define CAUSEB_IP3 11 |
| #define CAUSEF_IP3 (1 << 11) |
| #define CAUSEB_IP4 12 |
| #define CAUSEF_IP4 (1 << 12) |
| #define CAUSEB_IP5 13 |
| #define CAUSEF_IP5 (1 << 13) |
| #define CAUSEB_IP6 14 |
| #define CAUSEF_IP6 (1 << 14) |
| #define CAUSEB_IP7 15 |
| #define CAUSEF_IP7 (1 << 15) |
| #define CAUSEB_IV 23 |
| #define CAUSEF_IV (1 << 23) |
| #define CAUSEB_CE 28 |
| #define CAUSEF_CE (3 << 28) |
| #define CAUSEB_BD 31 |
| #define CAUSEF_BD (1 << 31) |
| |
| /* |
| * Bits in the coprozessor 0 config register. |
| */ |
| #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_DB (1 << 4) |
| #define CONF_IB (1 << 5) |
| #define CONF_SC (1 << 17) |
| #define CONF_AC (1 << 23) |
| #define CONF_HALT (1 << 25) |
| |
| /* |
| * 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 */ |
| |
| #endif /* _ASM_MIPSREGS_H */ |
