From patchwork Wed Jul 21 09:53:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 12390525 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A4B06C07E9B for ; Wed, 21 Jul 2021 10:04:50 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3DA1960FE7 for ; Wed, 21 Jul 2021 10:04:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3DA1960FE7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33100 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m695t-0002Xd-84 for qemu-devel@archiver.kernel.org; Wed, 21 Jul 2021 06:04:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46152) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m68vF-00037X-5G for qemu-devel@nongnu.org; Wed, 21 Jul 2021 05:53:49 -0400 Received: from mail.loongson.cn ([114.242.206.163]:49670 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m68vC-0002Br-JF for qemu-devel@nongnu.org; Wed, 21 Jul 2021 05:53:48 -0400 Received: from kvm-dev1.localdomain (unknown [10.2.5.134]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9DxL0CO7vdg5VEiAA--.21107S14; Wed, 21 Jul 2021 17:53:32 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Subject: [PATCH v2 12/22] target/loongarch: Add fixed point extra instruction translation Date: Wed, 21 Jul 2021 17:53:08 +0800 Message-Id: <1626861198-6133-13-git-send-email-gaosong@loongson.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1626861198-6133-1-git-send-email-gaosong@loongson.cn> References: <1626861198-6133-1-git-send-email-gaosong@loongson.cn> X-CM-TRANSID: AQAAf9DxL0CO7vdg5VEiAA--.21107S14 X-Coremail-Antispam: 1UD129KBjvJXoW3GF4fGF1xKry5Zw48Kw1DAwb_yoWftFW3pr 10yryUGrW8try3Z3s3tr15tr45Jr18uFyUt34fta40yF17WFnrJF1Fq3yYkr4UGr1DWrW2 ya98AFWqkFyUXaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU== X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=loongson.cn 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, SPF_HELO_PASS=-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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, thuth@redhat.com, chenhuacai@gmail.com, philmd@redhat.com, richard.henderson@linaro.org, laurent@vivier.eu, maobibo@loongson.cn, yangxiaojuan@loongson.cn, alistair.francis@wdc.com, pbonzini@redhat.com, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This patch implement fixed point extra instruction translation. This includes: - CRC[C].W.{B/H/W/D}.W - SYSCALL - BREAK - ASRT{LE/GT}.D - RDTIME{L/H}.W, RDTIME.D - CPUCFG Signed-off-by: Song Gao --- target/loongarch/helper.h | 4 + target/loongarch/insns.decode | 25 +++++ target/loongarch/op_helper.c | 69 +++++++++++++ target/loongarch/trans.inc.c | 235 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 333 insertions(+) diff --git a/target/loongarch/helper.h b/target/loongarch/helper.h index 5cd38c8..a60f293 100644 --- a/target/loongarch/helper.h +++ b/target/loongarch/helper.h @@ -21,3 +21,7 @@ DEF_HELPER_FLAGS_1(loongarch_dbitswap, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_3(asrtle_d, void, env, tl, tl) DEF_HELPER_3(asrtgt_d, void, env, tl, tl) + +DEF_HELPER_3(crc32, tl, tl, tl, i32) +DEF_HELPER_3(crc32c, tl, tl, tl, i32) +DEF_HELPER_2(cpucfg, tl, env, tl) diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode index 574c055..66bc314 100644 --- a/target/loongarch/insns.decode +++ b/target/loongarch/insns.decode @@ -27,6 +27,7 @@ %si14 10:s14 %hint 0:5 %whint 0:15 +%code 0:15 # # Argument sets @@ -46,6 +47,8 @@ &fmt_rdrjsi14 rd rj si14 &fmt_hintrjsi12 hint rj si12 &fmt_whint whint +&fmt_rjrk rj rk +&fmt_code code # # Formats @@ -65,6 +68,8 @@ @fmt_hintrjsi12 .... ...... ............ ..... ..... &fmt_hintrjsi12 %hint %rj %si12 @fmt_whint .... ........ ..... ............... &fmt_whint %whint @fmt_rdrjsi14 .... .... .............. ..... ..... &fmt_rdrjsi14 %rd %rj %si14 +@fmt_rjrk .... ........ ..... ..... ..... ..... &fmt_rjrk %rj %rk +@fmt_code .... ........ ..... ............... &fmt_code %code # # Fixed point arithmetic operation instruction @@ -260,3 +265,23 @@ ammax_db_wu 0011 10000111 00000 ..... ..... ..... @fmt_rdrjrk ammax_db_du 0011 10000111 00001 ..... ..... ..... @fmt_rdrjrk ammin_db_wu 0011 10000111 00010 ..... ..... ..... @fmt_rdrjrk ammin_db_du 0011 10000111 00011 ..... ..... ..... @fmt_rdrjrk + +# +# Fixed point extra instruction +# +crc_w_b_w 0000 00000010 01000 ..... ..... ..... @fmt_rdrjrk +crc_w_h_w 0000 00000010 01001 ..... ..... ..... @fmt_rdrjrk +crc_w_w_w 0000 00000010 01010 ..... ..... ..... @fmt_rdrjrk +crc_w_d_w 0000 00000010 01011 ..... ..... ..... @fmt_rdrjrk +crcc_w_b_w 0000 00000010 01100 ..... ..... ..... @fmt_rdrjrk +crcc_w_h_w 0000 00000010 01101 ..... ..... ..... @fmt_rdrjrk +crcc_w_w_w 0000 00000010 01110 ..... ..... ..... @fmt_rdrjrk +crcc_w_d_w 0000 00000010 01111 ..... ..... ..... @fmt_rdrjrk +break 0000 00000010 10100 ............... @fmt_code +syscall 0000 00000010 10110 ............... @fmt_code +asrtle_d 0000 00000000 00010 ..... ..... 00000 @fmt_rjrk +asrtgt_d 0000 00000000 00011 ..... ..... 00000 @fmt_rjrk +rdtimel_w 0000 00000000 00000 11000 ..... ..... @fmt_rdrj +rdtimeh_w 0000 00000000 00000 11001 ..... ..... @fmt_rdrj +rdtime_d 0000 00000000 00000 11010 ..... ..... @fmt_rdrj +cpucfg 0000 00000000 00000 11011 ..... ..... @fmt_rdrj diff --git a/target/loongarch/op_helper.c b/target/loongarch/op_helper.c index 738e067..5bf2806 100644 --- a/target/loongarch/op_helper.c +++ b/target/loongarch/op_helper.c @@ -13,6 +13,8 @@ #include "exec/helper-proto.h" #include "exec/exec-all.h" #include "exec/cpu_ldst.h" +#include "qemu/crc32c.h" +#include /* Exceptions helpers */ void helper_raise_exception_err(CPULoongArchState *env, uint32_t exception, @@ -159,3 +161,70 @@ void helper_asrtgt_d(CPULoongArchState *env, target_ulong rj, target_ulong rk) do_raise_exception(env, EXCP_ADE, GETPC()); } } + +target_ulong helper_crc32(target_ulong val, target_ulong m, uint32_t sz) +{ + uint8_t buf[8]; + target_ulong mask = ((sz * 8) == 64) ? -1ULL : ((1ULL << (sz * 8)) - 1); + + m &= mask; + stq_le_p(buf, m); + return (int32_t) (crc32(val ^ 0xffffffff, buf, sz) ^ 0xffffffff); +} + +target_ulong helper_crc32c(target_ulong val, target_ulong m, uint32_t sz) +{ + uint8_t buf[8]; + target_ulong mask = ((sz * 8) == 64) ? -1ULL : ((1ULL << (sz * 8)) - 1); + m &= mask; + stq_le_p(buf, m); + return (int32_t) (crc32c(val, buf, sz) ^ 0xffffffff); +} + +target_ulong helper_cpucfg(CPULoongArchState *env, target_ulong rj) +{ + target_ulong r = 0; + + switch (rj) { + case 0: + r = env->CSR_MCSR0 & 0xffffffff; + break; + case 1: + r = (env->CSR_MCSR0 & 0xffffffff00000000) >> 32; + break; + case 2: + r = env->CSR_MCSR1 & 0xffffffff; + break; + case 3: + r = (env->CSR_MCSR1 & 0xffffffff00000000) >> 32; + break; + case 4: + r = env->CSR_MCSR2 & 0xffffffff; + break; + case 5: + r = (env->CSR_MCSR2 & 0xffffffff00000000) >> 32; + break; + case 6: + r = env->CSR_MCSR3 & 0xffffffff; + break; + case 10: + r = env->CSR_MCSR8 & 0xffffffff; + break; + case 11: + r = (env->CSR_MCSR8 & 0xffffffff00000000) >> 32; + break; + case 12: + r = env->CSR_MCSR9 & 0xffffffff; + break; + case 13: + r = (env->CSR_MCSR9 & 0xffffffff00000000) >> 32; + break; + case 14: + r = env->CSR_MCSR10 & 0xffffffff; + break; + case 30: + r = env->CSR_MCSR24 & 0xffffffff; + break; + } + return r; +} diff --git a/target/loongarch/trans.inc.c b/target/loongarch/trans.inc.c index a87da4a..366877e 100644 --- a/target/loongarch/trans.inc.c +++ b/target/loongarch/trans.inc.c @@ -3084,3 +3084,238 @@ TRANS_AM_DB_D(ammin_db_du, fetch_umin) /* trans_ammin_db_du */ #undef TRANS_AM_DB #undef TRANS_AM_DB_W #undef TRANS_AM_DB_D + +/* Fixed point extra instruction translation */ +static bool trans_crc_w_b_w(DisasContext *ctx, arg_crc_w_b_w *a) +{ + TCGv t0, t1; + TCGv Rd = cpu_gpr[a->rd]; + TCGv_i32 tsz = tcg_const_i32(1 << 1); + + if (a->rd == 0) { + /* Nop */ + return true; + } + + t0 = get_gpr(a->rk); + t1 = get_gpr(a->rj); + + gen_helper_crc32(Rd, t0, t1, tsz); + + tcg_temp_free_i32(tsz); + + return true; +} + +static bool trans_crc_w_h_w(DisasContext *ctx, arg_crc_w_h_w *a) +{ + TCGv t0, t1; + TCGv Rd = cpu_gpr[a->rd]; + TCGv_i32 tsz = tcg_const_i32(1 << 2); + + if (a->rd == 0) { + /* Nop */ + return true; + } + + t0 = get_gpr(a->rk); + t1 = get_gpr(a->rj); + + gen_helper_crc32(Rd, t0, t1, tsz); + + tcg_temp_free_i32(tsz); + + return true; +} + +static bool trans_crc_w_w_w(DisasContext *ctx, arg_crc_w_w_w *a) +{ + TCGv t0, t1; + TCGv Rd = cpu_gpr[a->rd]; + TCGv_i32 tsz = tcg_const_i32(1 << 4); + + if (a->rd == 0) { + /* Nop */ + return true; + } + + t0 = get_gpr(a->rk); + t1 = get_gpr(a->rj); + + gen_helper_crc32(Rd, t0, t1, tsz); + + tcg_temp_free_i32(tsz); + + return true; +} + +static bool trans_crc_w_d_w(DisasContext *ctx, arg_crc_w_d_w *a) +{ + TCGv t0, t1; + TCGv Rd = cpu_gpr[a->rd]; + TCGv_i32 tsz = tcg_const_i32(1 << 8); + + if (a->rd == 0) { + /* Nop */ + return true; + } + + t0 = get_gpr(a->rk); + t1 = get_gpr(a->rj); + + gen_helper_crc32(Rd, t0, t1, tsz); + + tcg_temp_free_i32(tsz); + + return true; +} + +static bool trans_crcc_w_b_w(DisasContext *ctx, arg_crcc_w_b_w *a) +{ + TCGv t0, t1; + TCGv Rd = cpu_gpr[a->rd]; + TCGv_i32 tsz = tcg_const_i32(1 << 1); + + if (a->rd == 0) { + /* Nop */ + return true; + } + + t0 = get_gpr(a->rk); + t1 = get_gpr(a->rj); + + gen_helper_crc32c(Rd, t0, t1, tsz); + + tcg_temp_free_i32(tsz); + + return true; +} + +static bool trans_crcc_w_h_w(DisasContext *ctx, arg_crcc_w_h_w *a) +{ + TCGv t0, t1; + TCGv Rd = cpu_gpr[a->rd]; + TCGv_i32 tsz = tcg_const_i32(1 << 2); + + if (a->rd == 0) { + /* Nop */ + return true; + } + + t0 = get_gpr(a->rk); + t1 = get_gpr(a->rj); + + gen_helper_crc32c(Rd, t0, t1, tsz); + + tcg_temp_free_i32(tsz); + + return true; +} + +static bool trans_crcc_w_w_w(DisasContext *ctx, arg_crcc_w_w_w *a) +{ + TCGv t0, t1; + TCGv Rd = cpu_gpr[a->rd]; + TCGv_i32 tsz = tcg_const_i32(1 << 4); + + if (a->rd == 0) { + /* Nop */ + return true; + } + + t0 = get_gpr(a->rk); + t1 = get_gpr(a->rj); + + gen_helper_crc32c(Rd, t0, t1, tsz); + + tcg_temp_free_i32(tsz); + + return true; +} + +static bool trans_crcc_w_d_w(DisasContext *ctx, arg_crcc_w_d_w *a) +{ + TCGv t0, t1; + TCGv Rd = cpu_gpr[a->rd]; + TCGv_i32 tsz = tcg_const_i32(1 << 8); + + if (a->rd == 0) { + /* Nop */ + return true; + } + + t0 = get_gpr(a->rk); + t1 = get_gpr(a->rj); + + gen_helper_crc32c(Rd, t0, t1, tsz); + + tcg_temp_free_i32(tsz); + + return true; +} + +static bool trans_break(DisasContext *ctx, arg_break *a) +{ + generate_exception_end(ctx, EXCP_BREAK); + return true; +} + +static bool trans_syscall(DisasContext *ctx, arg_syscall *a) +{ + generate_exception_end(ctx, EXCP_SYSCALL); + return true; +} + +static bool trans_asrtle_d(DisasContext *ctx, arg_asrtle_d * a) +{ + TCGv t0, t1; + + t0 = get_gpr(a->rj); + t1 = get_gpr(a->rk); + + gen_helper_asrtle_d(cpu_env, t0, t1); + + return true; +} + +static bool trans_asrtgt_d(DisasContext *ctx, arg_asrtgt_d * a) +{ + TCGv t0, t1; + + t0 = get_gpr(a->rj); + t1 = get_gpr(a->rk); + + gen_helper_asrtgt_d(cpu_env, t0, t1); + + return true; +} + +static bool trans_rdtimel_w(DisasContext *ctx, arg_rdtimel_w *a) +{ + /* Nop */ + return true; +} + +static bool trans_rdtimeh_w(DisasContext *ctx, arg_rdtimeh_w *a) +{ + /* Nop */ + return true; +} + +static bool trans_rdtime_d(DisasContext *ctx, arg_rdtime_d *a) +{ + /* Nop */ + return true; +} + +static bool trans_cpucfg(DisasContext *ctx, arg_cpucfg *a) +{ + TCGv t0; + TCGv Rd = cpu_gpr[a->rd]; + + t0 = get_gpr(a->rj); + + gen_helper_cpucfg(Rd, cpu_env, t0); + + return true; +}