| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * MT regs definitions, follows on from mipsregs.h |
| * Copyright (C) 2004 - 2005 MIPS Technologies, Inc. All rights reserved. |
| * Elizabeth Clarke et. al. |
| * |
| */ |
| #ifndef _ASM_MIPSMTREGS_H |
| #define _ASM_MIPSMTREGS_H |
| |
| #include <asm/mipsregs.h> |
| |
| #ifndef __ASSEMBLY__ |
| |
| /* |
| * C macros |
| */ |
| |
| #define read_c0_mvpcontrol() __read_32bit_c0_register($0, 1) |
| #define write_c0_mvpcontrol(val) __write_32bit_c0_register($0, 1, val) |
| |
| #define read_c0_mvpconf0() __read_32bit_c0_register($0, 2) |
| #define read_c0_mvpconf1() __read_32bit_c0_register($0, 3) |
| |
| #define read_c0_vpecontrol() __read_32bit_c0_register($1, 1) |
| #define write_c0_vpecontrol(val) __write_32bit_c0_register($1, 1, val) |
| |
| #define read_c0_vpeconf0() __read_32bit_c0_register($1, 2) |
| #define write_c0_vpeconf0(val) __write_32bit_c0_register($1, 2, val) |
| |
| #define read_c0_vpeconf1() __read_32bit_c0_register($1, 3) |
| #define write_c0_vpeconf1(val) __write_32bit_c0_register($1, 3, val) |
| |
| #define read_c0_tcstatus() __read_32bit_c0_register($2, 1) |
| #define write_c0_tcstatus(val) __write_32bit_c0_register($2, 1, val) |
| |
| #define read_c0_tcbind() __read_32bit_c0_register($2, 2) |
| |
| #define write_c0_tchalt(val) __write_32bit_c0_register($2, 4, val) |
| |
| #define read_c0_tccontext() __read_32bit_c0_register($2, 5) |
| #define write_c0_tccontext(val) __write_32bit_c0_register($2, 5, val) |
| |
| #else /* Assembly */ |
| /* |
| * Macros for use in assembly language code |
| */ |
| |
| #define CP0_MVPCONTROL $0, 1 |
| #define CP0_MVPCONF0 $0, 2 |
| #define CP0_MVPCONF1 $0, 3 |
| #define CP0_VPECONTROL $1, 1 |
| #define CP0_VPECONF0 $1, 2 |
| #define CP0_VPECONF1 $1, 3 |
| #define CP0_YQMASK $1, 4 |
| #define CP0_VPESCHEDULE $1, 5 |
| #define CP0_VPESCHEFBK $1, 6 |
| #define CP0_TCSTATUS $2, 1 |
| #define CP0_TCBIND $2, 2 |
| #define CP0_TCRESTART $2, 3 |
| #define CP0_TCHALT $2, 4 |
| #define CP0_TCCONTEXT $2, 5 |
| #define CP0_TCSCHEDULE $2, 6 |
| #define CP0_TCSCHEFBK $2, 7 |
| #define CP0_SRSCONF0 $6, 1 |
| #define CP0_SRSCONF1 $6, 2 |
| #define CP0_SRSCONF2 $6, 3 |
| #define CP0_SRSCONF3 $6, 4 |
| #define CP0_SRSCONF4 $6, 5 |
| |
| #endif |
| |
| /* MVPControl fields */ |
| #define MVPCONTROL_EVP (_ULCAST_(1)) |
| |
| #define MVPCONTROL_VPC_SHIFT 1 |
| #define MVPCONTROL_VPC (_ULCAST_(1) << MVPCONTROL_VPC_SHIFT) |
| |
| #define MVPCONTROL_STLB_SHIFT 2 |
| #define MVPCONTROL_STLB (_ULCAST_(1) << MVPCONTROL_STLB_SHIFT) |
| |
| |
| /* MVPConf0 fields */ |
| #define MVPCONF0_PTC_SHIFT 0 |
| #define MVPCONF0_PTC ( _ULCAST_(0xff)) |
| #define MVPCONF0_PVPE_SHIFT 10 |
| #define MVPCONF0_PVPE ( _ULCAST_(0xf) << MVPCONF0_PVPE_SHIFT) |
| #define MVPCONF0_TCA_SHIFT 15 |
| #define MVPCONF0_TCA ( _ULCAST_(1) << MVPCONF0_TCA_SHIFT) |
| #define MVPCONF0_PTLBE_SHIFT 16 |
| #define MVPCONF0_PTLBE (_ULCAST_(0x3ff) << MVPCONF0_PTLBE_SHIFT) |
| #define MVPCONF0_TLBS_SHIFT 29 |
| #define MVPCONF0_TLBS (_ULCAST_(1) << MVPCONF0_TLBS_SHIFT) |
| #define MVPCONF0_M_SHIFT 31 |
| #define MVPCONF0_M (_ULCAST_(0x1) << MVPCONF0_M_SHIFT) |
| |
| |
| /* config3 fields */ |
| #define CONFIG3_MT_SHIFT 2 |
| #define CONFIG3_MT (_ULCAST_(1) << CONFIG3_MT_SHIFT) |
| |
| |
| /* VPEControl fields (per VPE) */ |
| #define VPECONTROL_TARGTC (_ULCAST_(0xff)) |
| |
| #define VPECONTROL_TE_SHIFT 15 |
| #define VPECONTROL_TE (_ULCAST_(1) << VPECONTROL_TE_SHIFT) |
| #define VPECONTROL_EXCPT_SHIFT 16 |
| #define VPECONTROL_EXCPT (_ULCAST_(0x7) << VPECONTROL_EXCPT_SHIFT) |
| |
| /* Thread Exception Codes for EXCPT field */ |
| #define THREX_TU 0 |
| #define THREX_TO 1 |
| #define THREX_IYQ 2 |
| #define THREX_GSX 3 |
| #define THREX_YSCH 4 |
| #define THREX_GSSCH 5 |
| |
| #define VPECONTROL_GSI_SHIFT 20 |
| #define VPECONTROL_GSI (_ULCAST_(1) << VPECONTROL_GSI_SHIFT) |
| #define VPECONTROL_YSI_SHIFT 21 |
| #define VPECONTROL_YSI (_ULCAST_(1) << VPECONTROL_YSI_SHIFT) |
| |
| /* VPEConf0 fields (per VPE) */ |
| #define VPECONF0_VPA_SHIFT 0 |
| #define VPECONF0_VPA (_ULCAST_(1) << VPECONF0_VPA_SHIFT) |
| #define VPECONF0_MVP_SHIFT 1 |
| #define VPECONF0_MVP (_ULCAST_(1) << VPECONF0_MVP_SHIFT) |
| #define VPECONF0_XTC_SHIFT 21 |
| #define VPECONF0_XTC (_ULCAST_(0xff) << VPECONF0_XTC_SHIFT) |
| |
| /* VPEConf1 fields (per VPE) */ |
| #define VPECONF1_NCP1_SHIFT 0 |
| #define VPECONF1_NCP1 (_ULCAST_(0xff) << VPECONF1_NCP1_SHIFT) |
| #define VPECONF1_NCP2_SHIFT 10 |
| #define VPECONF1_NCP2 (_ULCAST_(0xff) << VPECONF1_NCP2_SHIFT) |
| #define VPECONF1_NCX_SHIFT 20 |
| #define VPECONF1_NCX (_ULCAST_(0xff) << VPECONF1_NCX_SHIFT) |
| |
| /* TCStatus fields (per TC) */ |
| #define TCSTATUS_TASID (_ULCAST_(0xff)) |
| #define TCSTATUS_IXMT_SHIFT 10 |
| #define TCSTATUS_IXMT (_ULCAST_(1) << TCSTATUS_IXMT_SHIFT) |
| #define TCSTATUS_TKSU_SHIFT 11 |
| #define TCSTATUS_TKSU (_ULCAST_(3) << TCSTATUS_TKSU_SHIFT) |
| #define TCSTATUS_A_SHIFT 13 |
| #define TCSTATUS_A (_ULCAST_(1) << TCSTATUS_A_SHIFT) |
| #define TCSTATUS_DA_SHIFT 15 |
| #define TCSTATUS_DA (_ULCAST_(1) << TCSTATUS_DA_SHIFT) |
| #define TCSTATUS_DT_SHIFT 20 |
| #define TCSTATUS_DT (_ULCAST_(1) << TCSTATUS_DT_SHIFT) |
| #define TCSTATUS_TDS_SHIFT 21 |
| #define TCSTATUS_TDS (_ULCAST_(1) << TCSTATUS_TDS_SHIFT) |
| #define TCSTATUS_TSST_SHIFT 22 |
| #define TCSTATUS_TSST (_ULCAST_(1) << TCSTATUS_TSST_SHIFT) |
| #define TCSTATUS_RNST_SHIFT 23 |
| #define TCSTATUS_RNST (_ULCAST_(3) << TCSTATUS_RNST_SHIFT) |
| /* Codes for RNST */ |
| #define TC_RUNNING 0 |
| #define TC_WAITING 1 |
| #define TC_YIELDING 2 |
| #define TC_GATED 3 |
| |
| #define TCSTATUS_TMX_SHIFT 27 |
| #define TCSTATUS_TMX (_ULCAST_(1) << TCSTATUS_TMX_SHIFT) |
| /* TCStatus TCU bits can use same definitions/offsets as CU bits in Status */ |
| |
| /* TCBind */ |
| #define TCBIND_CURVPE_SHIFT 0 |
| #define TCBIND_CURVPE (_ULCAST_(0xf)) |
| |
| #define TCBIND_CURTC_SHIFT 21 |
| |
| #define TCBIND_CURTC (_ULCAST_(0xff) << TCBIND_CURTC_SHIFT) |
| |
| /* TCHalt */ |
| #define TCHALT_H (_ULCAST_(1)) |
| |
| #ifndef __ASSEMBLY__ |
| |
| static inline unsigned core_nvpes(void) |
| { |
| unsigned conf0; |
| |
| if (!cpu_has_mipsmt) |
| return 1; |
| |
| conf0 = read_c0_mvpconf0(); |
| return ((conf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1; |
| } |
| |
| static inline unsigned int dvpe(void) |
| { |
| int res = 0; |
| |
| __asm__ __volatile__( |
| " .set push \n" |
| " .set noreorder \n" |
| " .set noat \n" |
| " .set mips32r2 \n" |
| " .word 0x41610001 # dvpe $1 \n" |
| " move %0, $1 \n" |
| " ehb \n" |
| " .set pop \n" |
| : "=r" (res)); |
| |
| instruction_hazard(); |
| |
| return res; |
| } |
| |
| static inline void __raw_evpe(void) |
| { |
| __asm__ __volatile__( |
| " .set push \n" |
| " .set noreorder \n" |
| " .set noat \n" |
| " .set mips32r2 \n" |
| " .word 0x41600021 # evpe \n" |
| " ehb \n" |
| " .set pop \n"); |
| } |
| |
| /* Enable virtual processor execution if previous suggested it should be. |
| EVPE_ENABLE to force */ |
| |
| #define EVPE_ENABLE MVPCONTROL_EVP |
| |
| static inline void evpe(int previous) |
| { |
| if ((previous & MVPCONTROL_EVP)) |
| __raw_evpe(); |
| } |
| |
| static inline unsigned int dmt(void) |
| { |
| int res; |
| |
| __asm__ __volatile__( |
| " .set push \n" |
| " .set mips32r2 \n" |
| " .set noat \n" |
| " .word 0x41610BC1 # dmt $1 \n" |
| " ehb \n" |
| " move %0, $1 \n" |
| " .set pop \n" |
| : "=r" (res)); |
| |
| instruction_hazard(); |
| |
| return res; |
| } |
| |
| static inline void __raw_emt(void) |
| { |
| __asm__ __volatile__( |
| " .set push \n" |
| " .set noreorder \n" |
| " .set mips32r2 \n" |
| " .word 0x41600be1 # emt \n" |
| " ehb \n" |
| " .set pop"); |
| } |
| |
| /* enable multi-threaded execution if previous suggested it should be. |
| EMT_ENABLE to force */ |
| |
| #define EMT_ENABLE VPECONTROL_TE |
| |
| static inline void emt(int previous) |
| { |
| if ((previous & EMT_ENABLE)) |
| __raw_emt(); |
| } |
| |
| static inline void ehb(void) |
| { |
| __asm__ __volatile__( |
| " .set push \n" |
| " .set mips32r2 \n" |
| " ehb \n" |
| " .set pop \n"); |
| } |
| |
| #define mftc0(rt,sel) \ |
| ({ \ |
| unsigned long __res; \ |
| \ |
| __asm__ __volatile__( \ |
| " .set push \n" \ |
| " .set mips32r2 \n" \ |
| " .set noat \n" \ |
| " # mftc0 $1, $" #rt ", " #sel " \n" \ |
| " .word 0x41000800 | (" #rt " << 16) | " #sel " \n" \ |
| " move %0, $1 \n" \ |
| " .set pop \n" \ |
| : "=r" (__res)); \ |
| \ |
| __res; \ |
| }) |
| |
| #define mftgpr(rt) \ |
| ({ \ |
| unsigned long __res; \ |
| \ |
| __asm__ __volatile__( \ |
| " .set push \n" \ |
| " .set noat \n" \ |
| " .set mips32r2 \n" \ |
| " # mftgpr $1," #rt " \n" \ |
| " .word 0x41000820 | (" #rt " << 16) \n" \ |
| " move %0, $1 \n" \ |
| " .set pop \n" \ |
| : "=r" (__res)); \ |
| \ |
| __res; \ |
| }) |
| |
| #define mftr(rt, u, sel) \ |
| ({ \ |
| unsigned long __res; \ |
| \ |
| __asm__ __volatile__( \ |
| " mftr %0, " #rt ", " #u ", " #sel " \n" \ |
| : "=r" (__res)); \ |
| \ |
| __res; \ |
| }) |
| |
| #define mttgpr(rd,v) \ |
| do { \ |
| __asm__ __volatile__( \ |
| " .set push \n" \ |
| " .set mips32r2 \n" \ |
| " .set noat \n" \ |
| " move $1, %0 \n" \ |
| " # mttgpr $1, " #rd " \n" \ |
| " .word 0x41810020 | (" #rd " << 11) \n" \ |
| " .set pop \n" \ |
| : : "r" (v)); \ |
| } while (0) |
| |
| #define mttc0(rd, sel, v) \ |
| ({ \ |
| __asm__ __volatile__( \ |
| " .set push \n" \ |
| " .set mips32r2 \n" \ |
| " .set noat \n" \ |
| " move $1, %0 \n" \ |
| " # mttc0 %0," #rd ", " #sel " \n" \ |
| " .word 0x41810000 | (" #rd " << 11) | " #sel " \n" \ |
| " .set pop \n" \ |
| : \ |
| : "r" (v)); \ |
| }) |
| |
| |
| #define mttr(rd, u, sel, v) \ |
| ({ \ |
| __asm__ __volatile__( \ |
| "mttr %0," #rd ", " #u ", " #sel \ |
| : : "r" (v)); \ |
| }) |
| |
| |
| #define settc(tc) \ |
| do { \ |
| write_c0_vpecontrol((read_c0_vpecontrol()&~VPECONTROL_TARGTC) | (tc)); \ |
| ehb(); \ |
| } while (0) |
| |
| |
| /* you *must* set the target tc (settc) before trying to use these */ |
| #define read_vpe_c0_vpecontrol() mftc0(1, 1) |
| #define write_vpe_c0_vpecontrol(val) mttc0(1, 1, val) |
| #define read_vpe_c0_vpeconf0() mftc0(1, 2) |
| #define write_vpe_c0_vpeconf0(val) mttc0(1, 2, val) |
| #define read_vpe_c0_vpeconf1() mftc0(1, 3) |
| #define write_vpe_c0_vpeconf1(val) mttc0(1, 3, val) |
| #define read_vpe_c0_count() mftc0(9, 0) |
| #define write_vpe_c0_count(val) mttc0(9, 0, val) |
| #define read_vpe_c0_status() mftc0(12, 0) |
| #define write_vpe_c0_status(val) mttc0(12, 0, val) |
| #define read_vpe_c0_cause() mftc0(13, 0) |
| #define write_vpe_c0_cause(val) mttc0(13, 0, val) |
| #define read_vpe_c0_config() mftc0(16, 0) |
| #define write_vpe_c0_config(val) mttc0(16, 0, val) |
| #define read_vpe_c0_config1() mftc0(16, 1) |
| #define write_vpe_c0_config1(val) mttc0(16, 1, val) |
| #define read_vpe_c0_config7() mftc0(16, 7) |
| #define write_vpe_c0_config7(val) mttc0(16, 7, val) |
| #define read_vpe_c0_ebase() mftc0(15, 1) |
| #define write_vpe_c0_ebase(val) mttc0(15, 1, val) |
| #define write_vpe_c0_compare(val) mttc0(11, 0, val) |
| #define read_vpe_c0_badvaddr() mftc0(8, 0) |
| #define read_vpe_c0_epc() mftc0(14, 0) |
| #define write_vpe_c0_epc(val) mttc0(14, 0, val) |
| |
| |
| /* TC */ |
| #define read_tc_c0_tcstatus() mftc0(2, 1) |
| #define write_tc_c0_tcstatus(val) mttc0(2, 1, val) |
| #define read_tc_c0_tcbind() mftc0(2, 2) |
| #define write_tc_c0_tcbind(val) mttc0(2, 2, val) |
| #define read_tc_c0_tcrestart() mftc0(2, 3) |
| #define write_tc_c0_tcrestart(val) mttc0(2, 3, val) |
| #define read_tc_c0_tchalt() mftc0(2, 4) |
| #define write_tc_c0_tchalt(val) mttc0(2, 4, val) |
| #define read_tc_c0_tccontext() mftc0(2, 5) |
| #define write_tc_c0_tccontext(val) mttc0(2, 5, val) |
| |
| /* GPR */ |
| #define read_tc_gpr_sp() mftgpr(29) |
| #define write_tc_gpr_sp(val) mttgpr(29, val) |
| #define read_tc_gpr_gp() mftgpr(28) |
| #define write_tc_gpr_gp(val) mttgpr(28, val) |
| |
| __BUILD_SET_C0(mvpcontrol) |
| |
| #endif /* Not __ASSEMBLY__ */ |
| |
| #endif |
