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linux-headers-6.8.0-83
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arch
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loongarch
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include
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kvm_csr.h
/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2020-2023 Loongson Technology Corporation Limited */ #ifndef __ASM_LOONGARCH_KVM_CSR_H__ #define __ASM_LOONGARCH_KVM_CSR_H__ #include <linux/uaccess.h> #include <linux/kvm_host.h> #include <asm/loongarch.h> #include <asm/kvm_vcpu.h> #define gcsr_read(csr) \ ({ \ register unsigned long __v; \ __asm__ __volatile__( \ " gcsrrd %[val], %[reg]\n\t" \ : [val] "=r" (__v) \ : [reg] "i" (csr) \ : "memory"); \ __v; \ }) #define gcsr_write(v, csr) \ ({ \ register unsigned long __v = v; \ __asm__ __volatile__ ( \ " gcsrwr %[val], %[reg]\n\t" \ : [val] "+r" (__v) \ : [reg] "i" (csr) \ : "memory"); \ }) #define gcsr_xchg(v, m, csr) \ ({ \ register unsigned long __v = v; \ __asm__ __volatile__( \ " gcsrxchg %[val], %[mask], %[reg]\n\t" \ : [val] "+r" (__v) \ : [mask] "r" (m), [reg] "i" (csr) \ : "memory"); \ __v; \ }) /* Guest CSRS read and write */ #define read_gcsr_crmd() gcsr_read(LOONGARCH_CSR_CRMD) #define write_gcsr_crmd(val) gcsr_write(val, LOONGARCH_CSR_CRMD) #define read_gcsr_prmd() gcsr_read(LOONGARCH_CSR_PRMD) #define write_gcsr_prmd(val) gcsr_write(val, LOONGARCH_CSR_PRMD) #define read_gcsr_euen() gcsr_read(LOONGARCH_CSR_EUEN) #define write_gcsr_euen(val) gcsr_write(val, LOONGARCH_CSR_EUEN) #define read_gcsr_misc() gcsr_read(LOONGARCH_CSR_MISC) #define write_gcsr_misc(val) gcsr_write(val, LOONGARCH_CSR_MISC) #define read_gcsr_ecfg() gcsr_read(LOONGARCH_CSR_ECFG) #define write_gcsr_ecfg(val) gcsr_write(val, LOONGARCH_CSR_ECFG) #define read_gcsr_estat() gcsr_read(LOONGARCH_CSR_ESTAT) #define write_gcsr_estat(val) gcsr_write(val, LOONGARCH_CSR_ESTAT) #define read_gcsr_era() gcsr_read(LOONGARCH_CSR_ERA) #define write_gcsr_era(val) gcsr_write(val, LOONGARCH_CSR_ERA) #define read_gcsr_badv() gcsr_read(LOONGARCH_CSR_BADV) #define write_gcsr_badv(val) gcsr_write(val, LOONGARCH_CSR_BADV) #define read_gcsr_badi() gcsr_read(LOONGARCH_CSR_BADI) #define write_gcsr_badi(val) gcsr_write(val, LOONGARCH_CSR_BADI) #define read_gcsr_eentry() gcsr_read(LOONGARCH_CSR_EENTRY) #define write_gcsr_eentry(val) gcsr_write(val, LOONGARCH_CSR_EENTRY) #define read_gcsr_asid() gcsr_read(LOONGARCH_CSR_ASID) #define write_gcsr_asid(val) gcsr_write(val, LOONGARCH_CSR_ASID) #define read_gcsr_pgdl() gcsr_read(LOONGARCH_CSR_PGDL) #define write_gcsr_pgdl(val) gcsr_write(val, LOONGARCH_CSR_PGDL) #define read_gcsr_pgdh() gcsr_read(LOONGARCH_CSR_PGDH) #define write_gcsr_pgdh(val) gcsr_write(val, LOONGARCH_CSR_PGDH) #define write_gcsr_pgd(val) gcsr_write(val, LOONGARCH_CSR_PGD) #define read_gcsr_pgd() gcsr_read(LOONGARCH_CSR_PGD) #define read_gcsr_pwctl0() gcsr_read(LOONGARCH_CSR_PWCTL0) #define write_gcsr_pwctl0(val) gcsr_write(val, LOONGARCH_CSR_PWCTL0) #define read_gcsr_pwctl1() gcsr_read(LOONGARCH_CSR_PWCTL1) #define write_gcsr_pwctl1(val) gcsr_write(val, LOONGARCH_CSR_PWCTL1) #define read_gcsr_stlbpgsize() gcsr_read(LOONGARCH_CSR_STLBPGSIZE) #define write_gcsr_stlbpgsize(val) gcsr_write(val, LOONGARCH_CSR_STLBPGSIZE) #define read_gcsr_rvacfg() gcsr_read(LOONGARCH_CSR_RVACFG) #define write_gcsr_rvacfg(val) gcsr_write(val, LOONGARCH_CSR_RVACFG) #define read_gcsr_cpuid() gcsr_read(LOONGARCH_CSR_CPUID) #define write_gcsr_cpuid(val) gcsr_write(val, LOONGARCH_CSR_CPUID) #define read_gcsr_prcfg1() gcsr_read(LOONGARCH_CSR_PRCFG1) #define write_gcsr_prcfg1(val) gcsr_write(val, LOONGARCH_CSR_PRCFG1) #define read_gcsr_prcfg2() gcsr_read(LOONGARCH_CSR_PRCFG2) #define write_gcsr_prcfg2(val) gcsr_write(val, LOONGARCH_CSR_PRCFG2) #define read_gcsr_prcfg3() gcsr_read(LOONGARCH_CSR_PRCFG3) #define write_gcsr_prcfg3(val) gcsr_write(val, LOONGARCH_CSR_PRCFG3) #define read_gcsr_kscratch0() gcsr_read(LOONGARCH_CSR_KS0) #define write_gcsr_kscratch0(val) gcsr_write(val, LOONGARCH_CSR_KS0) #define read_gcsr_kscratch1() gcsr_read(LOONGARCH_CSR_KS1) #define write_gcsr_kscratch1(val) gcsr_write(val, LOONGARCH_CSR_KS1) #define read_gcsr_kscratch2() gcsr_read(LOONGARCH_CSR_KS2) #define write_gcsr_kscratch2(val) gcsr_write(val, LOONGARCH_CSR_KS2) #define read_gcsr_kscratch3() gcsr_read(LOONGARCH_CSR_KS3) #define write_gcsr_kscratch3(val) gcsr_write(val, LOONGARCH_CSR_KS3) #define read_gcsr_kscratch4() gcsr_read(LOONGARCH_CSR_KS4) #define write_gcsr_kscratch4(val) gcsr_write(val, LOONGARCH_CSR_KS4) #define read_gcsr_kscratch5() gcsr_read(LOONGARCH_CSR_KS5) #define write_gcsr_kscratch5(val) gcsr_write(val, LOONGARCH_CSR_KS5) #define read_gcsr_kscratch6() gcsr_read(LOONGARCH_CSR_KS6) #define write_gcsr_kscratch6(val) gcsr_write(val, LOONGARCH_CSR_KS6) #define read_gcsr_kscratch7() gcsr_read(LOONGARCH_CSR_KS7) #define write_gcsr_kscratch7(val) gcsr_write(val, LOONGARCH_CSR_KS7) #define read_gcsr_timerid() gcsr_read(LOONGARCH_CSR_TMID) #define write_gcsr_timerid(val) gcsr_write(val, LOONGARCH_CSR_TMID) #define read_gcsr_timercfg() gcsr_read(LOONGARCH_CSR_TCFG) #define write_gcsr_timercfg(val) gcsr_write(val, LOONGARCH_CSR_TCFG) #define read_gcsr_timertick() gcsr_read(LOONGARCH_CSR_TVAL) #define write_gcsr_timertick(val) gcsr_write(val, LOONGARCH_CSR_TVAL) #define read_gcsr_timeroffset() gcsr_read(LOONGARCH_CSR_CNTC) #define write_gcsr_timeroffset(val) gcsr_write(val, LOONGARCH_CSR_CNTC) #define read_gcsr_llbctl() gcsr_read(LOONGARCH_CSR_LLBCTL) #define write_gcsr_llbctl(val) gcsr_write(val, LOONGARCH_CSR_LLBCTL) #define read_gcsr_tlbidx() gcsr_read(LOONGARCH_CSR_TLBIDX) #define write_gcsr_tlbidx(val) gcsr_write(val, LOONGARCH_CSR_TLBIDX) #define read_gcsr_tlbrentry() gcsr_read(LOONGARCH_CSR_TLBRENTRY) #define write_gcsr_tlbrentry(val) gcsr_write(val, LOONGARCH_CSR_TLBRENTRY) #define read_gcsr_tlbrbadv() gcsr_read(LOONGARCH_CSR_TLBRBADV) #define write_gcsr_tlbrbadv(val) gcsr_write(val, LOONGARCH_CSR_TLBRBADV) #define read_gcsr_tlbrera() gcsr_read(LOONGARCH_CSR_TLBRERA) #define write_gcsr_tlbrera(val) gcsr_write(val, LOONGARCH_CSR_TLBRERA) #define read_gcsr_tlbrsave() gcsr_read(LOONGARCH_CSR_TLBRSAVE) #define write_gcsr_tlbrsave(val) gcsr_write(val, LOONGARCH_CSR_TLBRSAVE) #define read_gcsr_tlbrelo0() gcsr_read(LOONGARCH_CSR_TLBRELO0) #define write_gcsr_tlbrelo0(val) gcsr_write(val, LOONGARCH_CSR_TLBRELO0) #define read_gcsr_tlbrelo1() gcsr_read(LOONGARCH_CSR_TLBRELO1) #define write_gcsr_tlbrelo1(val) gcsr_write(val, LOONGARCH_CSR_TLBRELO1) #define read_gcsr_tlbrehi() gcsr_read(LOONGARCH_CSR_TLBREHI) #define write_gcsr_tlbrehi(val) gcsr_write(val, LOONGARCH_CSR_TLBREHI) #define read_gcsr_tlbrprmd() gcsr_read(LOONGARCH_CSR_TLBRPRMD) #define write_gcsr_tlbrprmd(val) gcsr_write(val, LOONGARCH_CSR_TLBRPRMD) #define read_gcsr_directwin0() gcsr_read(LOONGARCH_CSR_DMWIN0) #define write_gcsr_directwin0(val) gcsr_write(val, LOONGARCH_CSR_DMWIN0) #define read_gcsr_directwin1() gcsr_read(LOONGARCH_CSR_DMWIN1) #define write_gcsr_directwin1(val) gcsr_write(val, LOONGARCH_CSR_DMWIN1) #define read_gcsr_directwin2() gcsr_read(LOONGARCH_CSR_DMWIN2) #define write_gcsr_directwin2(val) gcsr_write(val, LOONGARCH_CSR_DMWIN2) #define read_gcsr_directwin3() gcsr_read(LOONGARCH_CSR_DMWIN3) #define write_gcsr_directwin3(val) gcsr_write(val, LOONGARCH_CSR_DMWIN3) /* Guest related CSRs */ #define read_csr_gtlbc() csr_read64(LOONGARCH_CSR_GTLBC) #define write_csr_gtlbc(val) csr_write64(val, LOONGARCH_CSR_GTLBC) #define read_csr_trgp() csr_read64(LOONGARCH_CSR_TRGP) #define read_csr_gcfg() csr_read64(LOONGARCH_CSR_GCFG) #define write_csr_gcfg(val) csr_write64(val, LOONGARCH_CSR_GCFG) #define read_csr_gstat() csr_read64(LOONGARCH_CSR_GSTAT) #define write_csr_gstat(val) csr_write64(val, LOONGARCH_CSR_GSTAT) #define read_csr_gintc() csr_read64(LOONGARCH_CSR_GINTC) #define write_csr_gintc(val) csr_write64(val, LOONGARCH_CSR_GINTC) #define read_csr_gcntc() csr_read64(LOONGARCH_CSR_GCNTC) #define write_csr_gcntc(val) csr_write64(val, LOONGARCH_CSR_GCNTC) #define __BUILD_GCSR_OP(name) __BUILD_CSR_COMMON(gcsr_##name) __BUILD_CSR_OP(gcfg) __BUILD_CSR_OP(gstat) __BUILD_CSR_OP(gtlbc) __BUILD_CSR_OP(gintc) __BUILD_GCSR_OP(llbctl) __BUILD_GCSR_OP(tlbidx) #define set_gcsr_estat(val) \ gcsr_xchg(val, val, LOONGARCH_CSR_ESTAT) #define clear_gcsr_estat(val) \ gcsr_xchg(~(val), val, LOONGARCH_CSR_ESTAT) #define kvm_read_hw_gcsr(id) gcsr_read(id) #define kvm_write_hw_gcsr(id, val) gcsr_write(val, id) #define kvm_save_hw_gcsr(csr, gid) (csr->csrs[gid] = gcsr_read(gid)) #define kvm_restore_hw_gcsr(csr, gid) (gcsr_write(csr->csrs[gid], gid)) int kvm_emu_iocsr(larch_inst inst, struct kvm_run *run, struct kvm_vcpu *vcpu); static __always_inline unsigned long kvm_read_sw_gcsr(struct loongarch_csrs *csr, int gid) { return csr->csrs[gid]; } static __always_inline void kvm_write_sw_gcsr(struct loongarch_csrs *csr, int gid, unsigned long val) { csr->csrs[gid] = val; } static __always_inline void kvm_set_sw_gcsr(struct loongarch_csrs *csr, int gid, unsigned long val) { csr->csrs[gid] |= val; } static __always_inline void kvm_change_sw_gcsr(struct loongarch_csrs *csr, int gid, unsigned long mask, unsigned long val) { unsigned long _mask = mask; csr->csrs[gid] &= ~_mask; csr->csrs[gid] |= val & _mask; } #endif /* __ASM_LOONGARCH_KVM_CSR_H__ */
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