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