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envelope-from=rathc@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Ojaswin Mujoo Convert the following instructions to decode tree specification: doze nap sleep rvwinkle stop The functionality was tested by comparing the qemu -D log -d op,in_asm output as well as single stepping gdb to confirm behavior was not changed for ISA3.x (stop) as well as ISA206 (doze, nap, sleep, rvwinkle). Signed-off-by: Ojaswin Mujoo Reviewed-by: Glenn Miles Reviewed-by: Amit Machhiwal Signed-off-by: Chinmay Rath --- target/ppc/insn32.decode | 8 ++ target/ppc/translate.c | 85 --------------- .../ppc/translate/processor-ctrl-impl.c.inc | 100 ++++++++++++++++++ 3 files changed, 108 insertions(+), 85 deletions(-) diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode index da32ac1d28..b833244932 100644 --- a/target/ppc/insn32.decode +++ b/target/ppc/insn32.decode @@ -913,6 +913,14 @@ VPERMR 000100 ..... ..... ..... ..... 111011 @VA VSEL 000100 ..... ..... ..... ..... 101010 @VA +## Power Management Instructions + +DOZE 010011 ----- ----- ----- 0110010010 - +NAP 010011 ----- ----- ----- 0110110010 - +SLEEP 010011 ----- ----- ----- 0111010010 - +RVWINKLE 010011 ----- ----- ----- 0111110010 - +STOP 010011 ----- ----- ----- 0101110010 - + ## Vector Integer Shift Instruction VSLB 000100 ..... ..... ..... 00100000100 @VX diff --git a/target/ppc/translate.c b/target/ppc/translate.c index e5ed4d2cc4..9d9823f92d 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -2728,86 +2728,6 @@ static inline void gen_check_tlb_flush(DisasContext *ctx, bool global) { } #endif #if defined(TARGET_PPC64) -static void gen_doze(DisasContext *ctx) -{ -#if defined(CONFIG_USER_ONLY) - GEN_PRIV(ctx); -#else - TCGv_i32 t; - - CHK_HV(ctx); - translator_io_start(&ctx->base); - t = tcg_constant_i32(PPC_PM_DOZE); - gen_helper_pminsn(tcg_env, t); - /* Stop translation, as the CPU is supposed to sleep from now */ - gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); -#endif /* defined(CONFIG_USER_ONLY) */ -} - -static void gen_nap(DisasContext *ctx) -{ -#if defined(CONFIG_USER_ONLY) - GEN_PRIV(ctx); -#else - TCGv_i32 t; - - CHK_HV(ctx); - translator_io_start(&ctx->base); - t = tcg_constant_i32(PPC_PM_NAP); - gen_helper_pminsn(tcg_env, t); - /* Stop translation, as the CPU is supposed to sleep from now */ - gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); -#endif /* defined(CONFIG_USER_ONLY) */ -} - -static void gen_stop(DisasContext *ctx) -{ -#if defined(CONFIG_USER_ONLY) - GEN_PRIV(ctx); -#else - TCGv_i32 t; - - CHK_HV(ctx); - translator_io_start(&ctx->base); - t = tcg_constant_i32(PPC_PM_STOP); - gen_helper_pminsn(tcg_env, t); - /* Stop translation, as the CPU is supposed to sleep from now */ - gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); -#endif /* defined(CONFIG_USER_ONLY) */ -} - -static void gen_sleep(DisasContext *ctx) -{ -#if defined(CONFIG_USER_ONLY) - GEN_PRIV(ctx); -#else - TCGv_i32 t; - - CHK_HV(ctx); - translator_io_start(&ctx->base); - t = tcg_constant_i32(PPC_PM_SLEEP); - gen_helper_pminsn(tcg_env, t); - /* Stop translation, as the CPU is supposed to sleep from now */ - gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); -#endif /* defined(CONFIG_USER_ONLY) */ -} - -static void gen_rvwinkle(DisasContext *ctx) -{ -#if defined(CONFIG_USER_ONLY) - GEN_PRIV(ctx); -#else - TCGv_i32 t; - - CHK_HV(ctx); - translator_io_start(&ctx->base); - t = tcg_constant_i32(PPC_PM_RVWINKLE); - gen_helper_pminsn(tcg_env, t); - /* Stop translation, as the CPU is supposed to sleep from now */ - gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); -#endif /* defined(CONFIG_USER_ONLY) */ -} - static inline TCGv gen_write_bhrb(TCGv_ptr base, TCGv offset, TCGv mask, TCGv value) { TCGv_ptr tmp = tcg_temp_new_ptr(); @@ -5104,11 +5024,6 @@ GEN_HANDLER_E(scv, 0x11, 0x10, 0xFF, 0x03FFF01E, PPC_NONE, PPC2_ISA300), GEN_HANDLER_E(scv, 0x11, 0x00, 0xFF, 0x03FFF01E, PPC_NONE, PPC2_ISA300), GEN_HANDLER_E(rfscv, 0x13, 0x12, 0x02, 0x03FF8001, PPC_NONE, PPC2_ISA300), #endif -GEN_HANDLER_E(stop, 0x13, 0x12, 0x0b, 0x03FFF801, PPC_NONE, PPC2_ISA300), -GEN_HANDLER_E(doze, 0x13, 0x12, 0x0c, 0x03FFF801, PPC_NONE, PPC2_PM_ISA206), -GEN_HANDLER_E(nap, 0x13, 0x12, 0x0d, 0x03FFF801, PPC_NONE, PPC2_PM_ISA206), -GEN_HANDLER_E(sleep, 0x13, 0x12, 0x0e, 0x03FFF801, PPC_NONE, PPC2_PM_ISA206), -GEN_HANDLER_E(rvwinkle, 0x13, 0x12, 0x0f, 0x03FFF801, PPC_NONE, PPC2_PM_ISA206), GEN_HANDLER(hrfid, 0x13, 0x12, 0x08, 0x03FF8001, PPC_64H), #endif /* Top bit of opc2 corresponds with low bit of LEV, so use two handlers */ diff --git a/target/ppc/translate/processor-ctrl-impl.c.inc b/target/ppc/translate/processor-ctrl-impl.c.inc index 8abbb89630..a96c9c87ce 100644 --- a/target/ppc/translate/processor-ctrl-impl.c.inc +++ b/target/ppc/translate/processor-ctrl-impl.c.inc @@ -103,3 +103,103 @@ static bool trans_MSGSYNC(DisasContext *ctx, arg_MSGSYNC *a) /* interpreted as no-op */ return true; } + +static bool do_doze(DisasContext *ctx, arg_DOZE *a) +{ + REQUIRE_64BIT(ctx); + +#if defined(CONFIG_USER_ONLY) + gen_priv_opc(ctx); +#else + TCGv_i32 t; + + REQUIRE_HV(ctx); + translator_io_start(&ctx->base); + t = tcg_constant_i32(PPC_PM_DOZE); + gen_helper_pminsn(tcg_env, t); + /* Stop translation, as the CPU is supposed to sleep from now */ + gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); +#endif /* defined(CONFIG_USER_ONLY) */ + return true; +} +TRANS_FLAGS2(PM_ISA206, DOZE, do_doze); + +static bool do_nap(DisasContext *ctx, arg_NAP *a) +{ + REQUIRE_64BIT(ctx); + +#if defined(CONFIG_USER_ONLY) + gen_priv_opc(ctx); +#else + TCGv_i32 t; + + REQUIRE_HV(ctx); + translator_io_start(&ctx->base); + t = tcg_constant_i32(PPC_PM_NAP); + gen_helper_pminsn(tcg_env, t); + /* Stop translation, as the CPU is supposed to sleep from now */ + gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); +#endif /* defined(CONFIG_USER_ONLY) */ + return true; +} +TRANS_FLAGS2(PM_ISA206, NAP, do_nap); + +static bool do_sleep(DisasContext *ctx, arg_SLEEP *a) +{ + REQUIRE_64BIT(ctx); + +#if defined(CONFIG_USER_ONLY) + gen_priv_opc(ctx); +#else + TCGv_i32 t; + + REQUIRE_HV(ctx); + translator_io_start(&ctx->base); + t = tcg_constant_i32(PPC_PM_SLEEP); + gen_helper_pminsn(tcg_env, t); + /* Stop translation, as the CPU is supposed to sleep from now */ + gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); +#endif /* defined(CONFIG_USER_ONLY) */ + return true; +} +TRANS_FLAGS2(PM_ISA206, SLEEP, do_sleep); + +static bool do_rvwinkle(DisasContext *ctx, arg_RVWINKLE *a) +{ + REQUIRE_64BIT(ctx); + +#if defined(CONFIG_USER_ONLY) + gen_priv_opc(ctx); +#else + TCGv_i32 t; + + REQUIRE_HV(ctx); + translator_io_start(&ctx->base); + t = tcg_constant_i32(PPC_PM_RVWINKLE); + gen_helper_pminsn(tcg_env, t); + /* Stop translation, as the CPU is supposed to sleep from now */ + gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); +#endif /* defined(CONFIG_USER_ONLY) */ + return true; +} +TRANS_FLAGS2(PM_ISA206, RVWINKLE, do_rvwinkle); + +static bool do_stop(DisasContext *ctx, arg_STOP *a) +{ + REQUIRE_64BIT(ctx); + +#if defined(CONFIG_USER_ONLY) + gen_priv_opc(ctx); +#else + TCGv_i32 t; + + REQUIRE_HV(ctx); + translator_io_start(&ctx->base); + t = tcg_constant_i32(PPC_PM_STOP); + gen_helper_pminsn(tcg_env, t); + /* Stop translation, as the CPU is supposed to sleep from now */ + gen_exception_nip(ctx, EXCP_HLT, ctx->base.pc_next); +#endif /* defined(CONFIG_USER_ONLY) */ + return true; +} +TRANS_FLAGS2(ISA300, STOP, do_stop); -- 2.55.0