From patchwork Fri Aug 27 07:14:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 12461429 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 332F7C432BE for ; Fri, 27 Aug 2021 07:50:42 +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 90DAD60F92 for ; Fri, 27 Aug 2021 07:50:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 90DAD60F92 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:45998 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mJWdM-0002Tu-RS for qemu-devel@archiver.kernel.org; Fri, 27 Aug 2021 03:50:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53164) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mJW59-0000ia-Fw for qemu-devel@nongnu.org; Fri, 27 Aug 2021 03:15:19 -0400 Received: from mail.loongson.cn ([114.242.206.163]:59462 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mJW4z-0003CH-JZ for qemu-devel@nongnu.org; Fri, 27 Aug 2021 03:15:19 -0400 Received: from kvm-dev1.localdomain (unknown [10.2.5.134]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9AxtOTvkChhno4AAA--.2304S7; Fri, 27 Aug 2021 15:15:03 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Subject: [PATCH v3 05/19] target/loongarch: Add fixed point shift instruction translation Date: Fri, 27 Aug 2021 15:14:40 +0800 Message-Id: <1630048494-2143-6-git-send-email-gaosong@loongson.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1630048494-2143-1-git-send-email-gaosong@loongson.cn> References: <1630048494-2143-1-git-send-email-gaosong@loongson.cn> X-CM-TRANSID: AQAAf9AxtOTvkChhno4AAA--.2304S7 X-Coremail-Antispam: 1UD129KBjvJXoWxKw47uw48Xw1DCw1DGF1kuFg_yoW3XF47pr 18CryUGr48Xr9rJr9Ivw45uFZ8JFnrCa1jg3ySyr15CF4UX3WDJF1DC3ya9rW7twn3ZrW8 ZFZ5uFyqgFyrGaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 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, richard.henderson@linaro.org, f4bug@amsat.org, maobibo@loongson.cn, laurent@vivier.eu, 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 shift instruction translation. This includes: - SLL.W, SRL.W, SRA.W, ROTR.W - SLLI.W, SRLI.W, SRAI.W, ROTRI.W - SLL.D, SRL.D, SRA.D, ROTR.D - SLLI.D, SRLI.D, SRAI.D, ROTRI.D Signed-off-by: Song Gao --- target/loongarch/insn_trans/trans_shift.c | 154 ++++++++++++++++++++++++++++++ target/loongarch/insns.decode | 26 +++++ target/loongarch/translate.c | 1 + 3 files changed, 181 insertions(+) create mode 100644 target/loongarch/insn_trans/trans_shift.c diff --git a/target/loongarch/insn_trans/trans_shift.c b/target/loongarch/insn_trans/trans_shift.c new file mode 100644 index 0000000..5fa1162 --- /dev/null +++ b/target/loongarch/insn_trans/trans_shift.c @@ -0,0 +1,154 @@ +/* + * LoongArch translate functions + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + * + * SPDX-License-Identifier: LGPL-2.1+ + */ + +static bool gen_r2_ui5(DisasContext *ctx, arg_slli_w *a, + void(*func)(TCGv, TCGv, TCGv)) +{ + ctx->dst_ext = EXT_SIGN; + TCGv dest = gpr_dst(ctx, a->rd); + TCGv src1 = gpr_src(ctx, a->rj, EXT_ZERO); + TCGv src2 = tcg_constant_tl(a->ui5); + + TCGv t0 = temp_new(ctx); + + tcg_gen_andi_tl(t0, src2, 0x1f); + func(dest, src1, t0); + gen_set_gpr(ctx, a->rd, dest); + + return true; +} + +static bool gen_r2_ui6(DisasContext *ctx, arg_slli_d *a, + void(*func)(TCGv, TCGv, TCGv)) +{ + TCGv dest = gpr_dst(ctx, a->rd); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + TCGv src2 = tcg_constant_tl(a->ui6); + + TCGv t0 = temp_new(ctx); + + tcg_gen_andi_tl(t0, src2, 0x7f); + func(dest, src1, t0); + + return true; +} + +static void gen_sll_w(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv t0 = tcg_temp_new(); + + tcg_gen_andi_tl(t0, src2, 0x1f); + tcg_gen_shl_tl(dest, src1, t0); + tcg_temp_free(t0); +} + +static void gen_srl_w(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv t0 = tcg_temp_new(); + tcg_gen_andi_tl(t0, src2, 0x1f); + tcg_gen_shr_tl(dest, src1, t0); + tcg_temp_free(t0); +} + +static void gen_sra_w(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv t0 = tcg_temp_new(); + tcg_gen_andi_tl(t0, src2, 0x1f); + tcg_gen_sar_tl(dest, src1, t0); + tcg_temp_free(t0); +} + +static void gen_sll_d(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv t0 = tcg_temp_new(); + tcg_gen_andi_tl(t0, src2, 0x3f); + tcg_gen_shl_tl(dest, src1, t0); + tcg_temp_free(t0); +} + +static void gen_srl_d(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv t0 = tcg_temp_new(); + tcg_gen_andi_tl(t0, src2, 0x3f); + tcg_gen_shr_tl(dest, src1, t0); + tcg_temp_free(t0); +} + +static void gen_sra_d(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv t0 = tcg_temp_new(); + tcg_gen_andi_tl(t0, src2, 0x3f); + tcg_gen_sar_tl(dest, src1, t0); + tcg_temp_free(t0); +} + +static void gen_rotr_w(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv_i32 t1 = tcg_temp_new_i32(); + TCGv_i32 t2 = tcg_temp_new_i32(); + TCGv t0 = tcg_temp_new(); + + tcg_gen_andi_tl(t0, src2, 0x1f); + + tcg_gen_trunc_tl_i32(t1, src1); + tcg_gen_trunc_tl_i32(t2, t0); + + tcg_gen_rotr_i32(t1, t1, t2); + tcg_gen_ext_i32_tl(dest, t1); + + tcg_temp_free_i32(t1); + tcg_temp_free_i32(t2); + tcg_temp_free(t0); +} + +static void gen_rotr_d(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv t0 = tcg_temp_new(); + tcg_gen_andi_tl(t0, src2, 0x3f); + tcg_gen_rotr_tl(dest, src1, t0); + tcg_temp_free(t0); +} + +static void gen_rotri_w(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv_i32 t1 = tcg_temp_new_i32(); + TCGv_i32 t2 = tcg_temp_new_i32(); + + tcg_gen_trunc_tl_i32(t1, src1); + tcg_gen_trunc_tl_i32(t2, src2); + tcg_gen_rotr_i32(t1, t1, t2); + tcg_gen_ext_i32_tl(dest, t1); + + tcg_temp_free_i32(t1); + tcg_temp_free_i32(t2); +} + +static bool trans_srai_w(DisasContext *ctx, arg_srai_w *a) +{ + TCGv dest = gpr_dst(ctx, a->rd); + TCGv src1 = gpr_src(ctx, a->rj, EXT_ZERO); + + tcg_gen_sextract_tl(dest, src1, a->ui5, 32 - a->ui5); + return true; +} + +TRANS(sll_w, gen_r3, EXT_ZERO, EXT_NONE, EXT_SIGN, gen_sll_w) +TRANS(srl_w, gen_r3, EXT_ZERO, EXT_NONE, EXT_SIGN, gen_srl_w) +TRANS(sra_w, gen_r3, EXT_ZERO, EXT_NONE, EXT_SIGN, gen_sra_w) +TRANS(sll_d, gen_r3, EXT_NONE, EXT_NONE, EXT_NONE, gen_sll_d) +TRANS(srl_d, gen_r3, EXT_NONE, EXT_NONE, EXT_NONE, gen_srl_d) +TRANS(sra_d, gen_r3, EXT_NONE, EXT_NONE, EXT_NONE, gen_sra_d) +TRANS(rotr_w, gen_r3, EXT_ZERO, EXT_NONE, EXT_SIGN, gen_rotr_w) +TRANS(rotr_d, gen_r3, EXT_NONE, EXT_NONE, EXT_NONE, gen_rotr_d) +TRANS(slli_w, gen_r2_ui5, tcg_gen_shl_tl) +TRANS(slli_d, gen_r2_ui6, tcg_gen_shl_tl) +TRANS(srli_w, gen_r2_ui5, tcg_gen_shr_tl) +TRANS(srli_d, gen_r2_ui6, tcg_gen_shr_tl) +TRANS(srai_d, gen_r2_ui6, tcg_gen_sar_tl) +TRANS(rotri_w, gen_r2_ui5, gen_rotri_w) +TRANS(rotri_d, gen_r2_ui6, tcg_gen_rotr_tl) diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode index 1e0b755..9302576 100644 --- a/target/loongarch/insns.decode +++ b/target/loongarch/insns.decode @@ -17,6 +17,8 @@ %ui12 10:12 %si16 10:s16 %si20 5:s20 +%ui5 10:5 +%ui6 10:6 # # Argument sets @@ -27,6 +29,8 @@ &fmt_rdrjsi16 rd rj si16 &fmt_rdrjui12 rd rj ui12 &fmt_rdsi20 rd si20 +&fmt_rdrjui5 rd rj ui5 +&fmt_rdrjui6 rd rj ui6 # # Formats @@ -37,6 +41,8 @@ @fmt_rdrjrksa2 .... ........ ... .. ..... ..... ..... &fmt_rdrjrksa2 %rd %rj %rk %sa2 @fmt_rdrjsi16 .... .. ................ ..... ..... &fmt_rdrjsi16 %rd %rj %si16 @fmt_rdsi20 .... ... .................... ..... &fmt_rdsi20 %rd %si20 +@fmt_rdrjui5 .... ........ ..... ..... ..... ..... &fmt_rdrjui5 %rd %rj %ui5 +@fmt_rdrjui6 .... ........ .... ...... ..... ..... &fmt_rdrjui6 %rd %rj %ui6 # # Fixed point arithmetic operation instruction @@ -87,3 +93,23 @@ addu16i_d 0001 00 ................ ..... ..... @fmt_rdrjsi16 andi 0000 001101 ............ ..... ..... @fmt_rdrjui12 ori 0000 001110 ............ ..... ..... @fmt_rdrjui12 xori 0000 001111 ............ ..... ..... @fmt_rdrjui12 + +# +# Fixed point shift operation instruction +# +sll_w 0000 00000001 01110 ..... ..... ..... @fmt_rdrjrk +srl_w 0000 00000001 01111 ..... ..... ..... @fmt_rdrjrk +sra_w 0000 00000001 10000 ..... ..... ..... @fmt_rdrjrk +sll_d 0000 00000001 10001 ..... ..... ..... @fmt_rdrjrk +srl_d 0000 00000001 10010 ..... ..... ..... @fmt_rdrjrk +sra_d 0000 00000001 10011 ..... ..... ..... @fmt_rdrjrk +rotr_w 0000 00000001 10110 ..... ..... ..... @fmt_rdrjrk +rotr_d 0000 00000001 10111 ..... ..... ..... @fmt_rdrjrk +slli_w 0000 00000100 00001 ..... ..... ..... @fmt_rdrjui5 +slli_d 0000 00000100 0001 ...... ..... ..... @fmt_rdrjui6 +srli_w 0000 00000100 01001 ..... ..... ..... @fmt_rdrjui5 +srli_d 0000 00000100 0101 ...... ..... ..... @fmt_rdrjui6 +srai_w 0000 00000100 10001 ..... ..... ..... @fmt_rdrjui5 +srai_d 0000 00000100 1001 ...... ..... ..... @fmt_rdrjui6 +rotri_w 0000 00000100 11001 ..... ..... ..... @fmt_rdrjui5 +rotri_d 0000 00000100 1101 ...... ..... ..... @fmt_rdrjui6 diff --git a/target/loongarch/translate.c b/target/loongarch/translate.c index 1806d2c..e9cccca 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -159,6 +159,7 @@ static bool gen_r3(DisasContext *ctx, arg_fmt_rdrjrk *a, } #include "insn_trans/trans_arith.c" +#include "insn_trans/trans_shift.c" static void loongarch_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) {