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Sat, 12 Dec 2020 18:55:03 +0100 From: Laurent Vivier To: qemu-devel@nongnu.org Subject: [PULL 4/5] target/m68k: Add vmstate definition for M68kCPU Date: Sat, 12 Dec 2020 18:54:57 +0100 Message-Id: <20201212175458.259960-5-laurent@vivier.eu> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201212175458.259960-1-laurent@vivier.eu> References: <20201212175458.259960-1-laurent@vivier.eu> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:HrF8PlKqVXGueK0dRslluoWCRueBzoDGCfOpRcDodPajowpyMTX Zujg3zubD4hcLiiSCo75HbIlbRGsPL6YOdufgcwNgTwUs8Sl9BP8xewnzxxAzHUn2gcWwSx bu8wscr/Zwe7y7hS2gpy6XV2d+ithqOo3bQgy0S06xHkzFGAlTCmZYb0NHwUNTDVKA1oszy Q/WMnw5FVjgXDJUliGTSQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:sB71npsFM8g=:DaBp3/71rlA/rCL5uaEGDe yMy59W268cMfvcd61cAFfYZ1SuO5QakS/e1AQcW4GQ8xXb0dhPMRkS7fnLuTxl7OjuxosDWRQ 5b7bxWy8IJSvBs/WibTY4Q6gHlNdLkaqYuQWRHtIocx+MrTyTlmUIOy7xSlHA7SLJ2Z/78VPs OrMv7iATzjzeulE27TogC+2peReRJyGwYWXJguz5CurD8X/LFj6qYWcr6pW2w5c8WWGMJMrTL 7PLn4yay6ANUUy0RQiM5rdg0NAJpjeVBsEGaiChm5cwG7p9FF4yAkT7CkE8VM1Zf2vR7bwGZY 54PBgc6422frr+vnGeGSRK8lKtCb/3w12ZlsOkO0EGGPpquxlNERRm2qU+rufX9vzTGl6lEF8 S3aitcB/llNG0maQYc5KLLziAPHLe+iBUSufshRRqKMXiZufpTYSqWJ2JqNayg3QD8t5xZqYS VBwWL/pIVw== Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=212.227.126.133; envelope-from=laurent@vivier.eu; helo=mout.kundenserver.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Signed-off-by: Laurent Vivier Message-Id: <20201022203000.1922749-3-laurent@vivier.eu> --- target/m68k/cpu.h | 1 + target/m68k/cpu.c | 193 ++++++++++++++++++++++++++++++++++++++- target/m68k/fpu_helper.c | 10 +- 3 files changed, 198 insertions(+), 6 deletions(-) diff --git a/target/m68k/cpu.h b/target/m68k/cpu.h index 9a6f0400fcfe..de5b9875fea3 100644 --- a/target/m68k/cpu.h +++ b/target/m68k/cpu.h @@ -179,6 +179,7 @@ int cpu_m68k_signal_handler(int host_signum, void *pinf= o, uint32_t cpu_m68k_get_ccr(CPUM68KState *env); void cpu_m68k_set_ccr(CPUM68KState *env, uint32_t); void cpu_m68k_set_sr(CPUM68KState *env, uint32_t); +void cpu_m68k_restore_fp_status(CPUM68KState *env); void cpu_m68k_set_fpcr(CPUM68KState *env, uint32_t val); =20 =20 diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index 72c545149e9b..b811a0bdde2d 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -260,10 +260,198 @@ static void m68k_cpu_initfn(Object *obj) cpu_set_cpustate_pointers(cpu); } =20 +#if defined(CONFIG_SOFTMMU) +static bool fpu_needed(void *opaque) +{ + M68kCPU *s =3D opaque; + + return m68k_feature(&s->env, M68K_FEATURE_CF_FPU) || + m68k_feature(&s->env, M68K_FEATURE_FPU); +} + +typedef struct m68k_FPReg_tmp { + FPReg *parent; + uint64_t tmp_mant; + uint16_t tmp_exp; +} m68k_FPReg_tmp; + +static void cpu_get_fp80(uint64_t *pmant, uint16_t *pexp, floatx80 f) +{ + CPU_LDoubleU temp; + + temp.d =3D f; + *pmant =3D temp.l.lower; + *pexp =3D temp.l.upper; +} + +static floatx80 cpu_set_fp80(uint64_t mant, uint16_t upper) +{ + CPU_LDoubleU temp; + + temp.l.upper =3D upper; + temp.l.lower =3D mant; + return temp.d; +} + +static int freg_pre_save(void *opaque) +{ + m68k_FPReg_tmp *tmp =3D opaque; + + cpu_get_fp80(&tmp->tmp_mant, &tmp->tmp_exp, tmp->parent->d); + + return 0; +} + +static int freg_post_load(void *opaque, int version) +{ + m68k_FPReg_tmp *tmp =3D opaque; + + tmp->parent->d =3D cpu_set_fp80(tmp->tmp_mant, tmp->tmp_exp); + + return 0; +} + +static const VMStateDescription vmstate_freg_tmp =3D { + .name =3D "freg_tmp", + .post_load =3D freg_post_load, + .pre_save =3D freg_pre_save, + .fields =3D (VMStateField[]) { + VMSTATE_UINT64(tmp_mant, m68k_FPReg_tmp), + VMSTATE_UINT16(tmp_exp, m68k_FPReg_tmp), + VMSTATE_END_OF_LIST() + } +}; + +static const VMStateDescription vmstate_freg =3D { + .name =3D "freg", + .fields =3D (VMStateField[]) { + VMSTATE_WITH_TMP(FPReg, m68k_FPReg_tmp, vmstate_freg_tmp), + VMSTATE_END_OF_LIST() + } +}; + +static int fpu_post_load(void *opaque, int version) +{ + M68kCPU *s =3D opaque; + + cpu_m68k_restore_fp_status(&s->env); + + return 0; +} + +const VMStateDescription vmmstate_fpu =3D { + .name =3D "cpu/fpu", + .version_id =3D 1, + .minimum_version_id =3D 1, + .needed =3D fpu_needed, + .post_load =3D fpu_post_load, + .fields =3D (VMStateField[]) { + VMSTATE_UINT32(env.fpcr, M68kCPU), + VMSTATE_UINT32(env.fpsr, M68kCPU), + VMSTATE_STRUCT_ARRAY(env.fregs, M68kCPU, 8, 0, vmstate_freg, FPReg= ), + VMSTATE_STRUCT(env.fp_result, M68kCPU, 0, vmstate_freg, FPReg), + VMSTATE_END_OF_LIST() + } +}; + +static bool cf_spregs_needed(void *opaque) +{ + M68kCPU *s =3D opaque; + + return m68k_feature(&s->env, M68K_FEATURE_CF_ISA_A); +} + +const VMStateDescription vmstate_cf_spregs =3D { + .name =3D "cpu/cf_spregs", + .version_id =3D 1, + .minimum_version_id =3D 1, + .needed =3D cf_spregs_needed, + .fields =3D (VMStateField[]) { + VMSTATE_UINT64_ARRAY(env.macc, M68kCPU, 4), + VMSTATE_UINT32(env.macsr, M68kCPU), + VMSTATE_UINT32(env.mac_mask, M68kCPU), + VMSTATE_UINT32(env.rambar0, M68kCPU), + VMSTATE_UINT32(env.mbar, M68kCPU), + VMSTATE_END_OF_LIST() + } +}; + +static bool cpu_68040_mmu_needed(void *opaque) +{ + M68kCPU *s =3D opaque; + + return m68k_feature(&s->env, M68K_FEATURE_M68040); +} + +const VMStateDescription vmstate_68040_mmu =3D { + .name =3D "cpu/68040_mmu", + .version_id =3D 1, + .minimum_version_id =3D 1, + .needed =3D cpu_68040_mmu_needed, + .fields =3D (VMStateField[]) { + VMSTATE_UINT32(env.mmu.ar, M68kCPU), + VMSTATE_UINT32(env.mmu.ssw, M68kCPU), + VMSTATE_UINT16(env.mmu.tcr, M68kCPU), + VMSTATE_UINT32(env.mmu.urp, M68kCPU), + VMSTATE_UINT32(env.mmu.srp, M68kCPU), + VMSTATE_BOOL(env.mmu.fault, M68kCPU), + VMSTATE_UINT32_ARRAY(env.mmu.ttr, M68kCPU, 4), + VMSTATE_UINT32(env.mmu.mmusr, M68kCPU), + VMSTATE_END_OF_LIST() + } +}; + +static bool cpu_68040_spregs_needed(void *opaque) +{ + M68kCPU *s =3D opaque; + + return m68k_feature(&s->env, M68K_FEATURE_M68040); +} + +const VMStateDescription vmstate_68040_spregs =3D { + .name =3D "cpu/68040_spregs", + .version_id =3D 1, + .minimum_version_id =3D 1, + .needed =3D cpu_68040_spregs_needed, + .fields =3D (VMStateField[]) { + VMSTATE_UINT32(env.vbr, M68kCPU), + VMSTATE_UINT32(env.cacr, M68kCPU), + VMSTATE_UINT32(env.sfc, M68kCPU), + VMSTATE_UINT32(env.dfc, M68kCPU), + VMSTATE_END_OF_LIST() + } +}; + static const VMStateDescription vmstate_m68k_cpu =3D { .name =3D "cpu", - .unmigratable =3D 1, + .version_id =3D 1, + .minimum_version_id =3D 1, + .fields =3D (VMStateField[]) { + VMSTATE_UINT32_ARRAY(env.dregs, M68kCPU, 8), + VMSTATE_UINT32_ARRAY(env.aregs, M68kCPU, 8), + VMSTATE_UINT32(env.pc, M68kCPU), + VMSTATE_UINT32(env.sr, M68kCPU), + VMSTATE_INT32(env.current_sp, M68kCPU), + VMSTATE_UINT32_ARRAY(env.sp, M68kCPU, 3), + VMSTATE_UINT32(env.cc_op, M68kCPU), + VMSTATE_UINT32(env.cc_x, M68kCPU), + VMSTATE_UINT32(env.cc_n, M68kCPU), + VMSTATE_UINT32(env.cc_v, M68kCPU), + VMSTATE_UINT32(env.cc_c, M68kCPU), + VMSTATE_UINT32(env.cc_z, M68kCPU), + VMSTATE_INT32(env.pending_vector, M68kCPU), + VMSTATE_INT32(env.pending_level, M68kCPU), + VMSTATE_END_OF_LIST() + }, + .subsections =3D (const VMStateDescription * []) { + &vmmstate_fpu, + &vmstate_cf_spregs, + &vmstate_68040_mmu, + &vmstate_68040_spregs, + NULL + }, }; +#endif =20 static void m68k_cpu_class_init(ObjectClass *c, void *data) { @@ -287,13 +475,12 @@ static void m68k_cpu_class_init(ObjectClass *c, void = *data) #if defined(CONFIG_SOFTMMU) cc->do_transaction_failed =3D m68k_cpu_transaction_failed; cc->get_phys_page_debug =3D m68k_cpu_get_phys_page_debug; + dc->vmsd =3D &vmstate_m68k_cpu; #endif cc->disas_set_info =3D m68k_cpu_disas_set_info; cc->tcg_initialize =3D m68k_tcg_init; =20 cc->gdb_num_core_regs =3D 18; - - dc->vmsd =3D &vmstate_m68k_cpu; } =20 static void m68k_cpu_class_init_cf_core(ObjectClass *c, void *data) diff --git a/target/m68k/fpu_helper.c b/target/m68k/fpu_helper.c index 9acf60dfd443..797000e7482c 100644 --- a/target/m68k/fpu_helper.c +++ b/target/m68k/fpu_helper.c @@ -135,10 +135,8 @@ static void restore_rounding_mode(CPUM68KState *env) } } =20 -void cpu_m68k_set_fpcr(CPUM68KState *env, uint32_t val) +void cpu_m68k_restore_fp_status(CPUM68KState *env) { - env->fpcr =3D val & 0xffff; - if (m68k_feature(env, M68K_FEATURE_CF_FPU)) { cf_restore_precision_mode(env); } else { @@ -147,6 +145,12 @@ void cpu_m68k_set_fpcr(CPUM68KState *env, uint32_t val) restore_rounding_mode(env); } =20 +void cpu_m68k_set_fpcr(CPUM68KState *env, uint32_t val) +{ + env->fpcr =3D val & 0xffff; + cpu_m68k_restore_fp_status(env); +} + void HELPER(fitrunc)(CPUM68KState *env, FPReg *res, FPReg *val) { FloatRoundMode rounding_mode =3D get_float_rounding_mode(&env->fp_stat= us); --=20 2.29.2