/* * 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 /* * Coprocessor 0 register names */ #define CP0_INDEX $0 #define CP0_RANDOM $1 #define CP0_ENTRYLO0 $2 #define CP0_ENTRYLO1 $3 #define CP0_CONF $3 #define CP0_CONTEXT $4 #define CP0_PAGEMASK $5 #define CP0_WIRED $6 #define CP0_INFO $7 #define CP0_BADVADDR $8 #define CP0_COUNT $9 #define CP0_ENTRYHI $10 #define CP0_COMPARE $11 #define CP0_STATUS $12 #define CP0_CAUSE $13 #define CP0_EPC $14 #define CP0_PRID $15 #define CP0_CONFIG $16 #define CP0_LLADDR $17 #define CP0_WATCHLO $18 #define CP0_WATCHHI $19 #define CP0_XCONTEXT $20 #define CP0_FRAMEMASK $21 #define CP0_DIAGNOSTIC $22 #define CP0_DEBUG $23 #define CP0_DEPC $24 #define CP0_PERFORMANCE $25 #define CP0_ECC $26 #define CP0_CACHEERR $27 #define CP0_TAGLO $28 #define CP0_TAGHI $29 #define CP0_ERROREPC $30 #define CP0_DESAVE $31 /* * R4640/R4650 cp0 register names. These registers are listed * here only for completeness; without MMU these CPUs are not useable * by Linux. A future ELKS port might take make Linux run on them * though ... */ #define CP0_IBASE $0 #define CP0_IBOUND $1 #define CP0_DBASE $2 #define CP0_DBOUND $3 #define CP0_CALG $17 #define CP0_IWATCH $18 #define CP0_DWATCH $19 /* * Coprocessor 0 Set 1 register names */ #define CP0_S1_DERRADDR0 $26 #define CP0_S1_DERRADDR1 $27 #define CP0_S1_INTCONTROL $20 /* * TX39 Series */ #define CP0_TX39_CACHE $7 /* * Coprocessor 1 (FPU) register names */ #define CP1_REVISION $0 #define CP1_STATUS $31 /* * FPU Status Register Values */ /* * Status Register Values */ #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 */ #ifdef CONFIG_CPU_VR41XX /* Why doesn't stupidity hurt ... */ #define PM_1K 0x00000000 #define PM_4K 0x00001800 #define PM_16K 0x00007800 #define PM_64K 0x0001f800 #define PM_256K 0x0007f800 #else #define PM_4K 0x00000000 #define PM_16K 0x00006000 #define PM_64K 0x0001e000 #define PM_256K 0x0007e000 #define PM_1M 0x001fe000 #define PM_4M 0x007fe000 #define PM_16M 0x01ffe000 #define PM_64M 0x07ffe000 #define PM_256M 0x1fffe000 #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 #define PL_64M 26 #define PL_256M 28 /* * R4x00 interrupt enable / cause bits */ #define IE_SW0 (_ULCAST_(1) << 8) #define IE_SW1 (_ULCAST_(1) << 9) #define IE_IRQ0 (_ULCAST_(1) << 10) #define IE_IRQ1 (_ULCAST_(1) << 11) #define IE_IRQ2 (_ULCAST_(1) << 12) #define IE_IRQ3 (_ULCAST_(1) << 13) #define IE_IRQ4 (_ULCAST_(1) << 14) #define IE_IRQ5 (_ULCAST_(1) << 15) /* * R4x00 interrupt cause bits */ #define C_SW0 (_ULCAST_(1) << 8) #define C_SW1 (_ULCAST_(1) << 9) #define C_IRQ0 (_ULCAST_(1) << 10) #define C_IRQ1 (_ULCAST_(1) << 11) #define C_IRQ2 (_ULCAST_(1) << 12) #define C_IRQ3 (_ULCAST_(1) << 13) #define C_IRQ4 (_ULCAST_(1) << 14) #define C_IRQ5 (_ULCAST_(1) << 15) /* * 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 (_ULCAST_(1) << 4) #define ST0_IL (_ULCAST_(1) << 23) #define ST0_DL (_ULCAST_(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 (_ULCAST_(1) << 8) #define STATUSB_IP1 9 #define STATUSF_IP1 (_ULCAST_(1) << 9) #define STATUSB_IP2 10 #define STATUSF_IP2 (_ULCAST_(1) << 10) #define STATUSB_IP3 11 #define STATUSF_IP3 (_ULCAST_(1) << 11) #define STATUSB_IP4 12 #define STATUSF_IP4 (_ULCAST_(1) << 12) #define STATUSB_IP5 13 #define STATUSF_IP5 (_ULCAST_(1) << 13) #define STATUSB_IP6 14 #define STATUSF_IP6 (_ULCAST_(1) << 14) #define STATUSB_IP7 15 #define STATUSF_IP7 (_ULCAST_(1) << 15) #define STATUSB_IP8 0 #define STATUSF_IP8 (_ULCAST_(1) << 0) #define STATUSB_IP9 1 #define STATUSF_IP9 (_ULCAST_(1) << 1) #define STATUSB_IP10 2 #define STATUSF_IP10 (_ULCAST_(1) << 2) #define STATUSB_IP11 3 #define STATUSF_IP11 (_ULCAST_(1) << 3) #define STATUSB_IP12 4 #define STATUSF_IP12 (_ULCAST_(1) << 4) #define STATUSB_IP13 5 #define STATUSF_IP13 (_ULCAST_(1) << 5) #define STATUSB_IP14 6 #define STATUSF_IP14 (_ULCAST_(1) << 6) #define STATUSB_IP15 7 #define STATUSF_IP15 (_ULCAST_(1) << 7) #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_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 __ASSEMBLER__ #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) \ ({ unsigned 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_badvaddr() __read_32bit_c0_register($8, 0) #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_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) #define write_c0_config2(val) __write_32bit_c0_register($16, 2, val) #define write_c0_config3(val) __write_32bit_c0_register($16, 3, 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_register($20, 1) #define write_c0_intcontrol(val) __write_32bit_c0_register($20, 1, val) #define read_c0_framemask() __read_32bit_c0_register($21, 0) #define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val) #define read_c0_debug() __read_32bit_c0_register($23, 0) #define write_c0_debug(val) __write_32bit_c0_register($23, 0, val) #define read_c0_depc() __read_ulong_c0_register($24, 0) #define write_c0_depc(val) __write_ulong_c0_register($24, 0, val) #define read_c0_ecc() __read_32bit_c0_register($26, 0) #define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val) #define read_c0_derraddr0() __read_ulong_c0_register($26, 1) #define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val) #define read_c0_cacheerr() __read_32bit_c0_register($27, 0) #define read_c0_derraddr1() __read_ulong_c0_register($27, 1) #define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val) #define read_c0_taglo() __read_32bit_c0_register($28, 0) #define write_c0_taglo(val) __write_32bit_c0_register($28, 0, val) #define read_c0_taghi() __read_32bit_c0_register($29, 0) #define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val) #define read_c0_errorepc() __read_ulong_c0_register($30, 0) #define write_c0_errorepc(val) __write_ulong_c0_register($30, 0, val) #define read_c0_epc() __read_ulong_c0_register($14, 0) #define write_c0_epc(val) __write_ulong_c0_register($14, 0, val) #if 1 /* * 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" \ "#.set\tmips64\n\t" \ "#mfc0\t$1, $16, 1\n\t" \ "#.set\tmips0\n\t" \ ".word\t0x40018001\n\t" \ "move\t%0,$1\n\t" \ ".set\tat\n\t" \ ".set\treorder" \ :"=r" (__res)); \ __res;}) #endif /* * 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)); \ __res;}) /* 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) { __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) \ 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,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) #endif /* !__ASSEMBLER__ */ #endif /* _ASM_MIPSREGS_H */