From patchwork Mon Nov 1 09:51:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Song Gao X-Patchwork-Id: 1549085 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4HjT7W09g6z9sVc for ; Mon, 1 Nov 2021 21:00:55 +1100 (AEDT) Received: from localhost ([::1]:60434 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mhU7Y-0005WQ-Qo for incoming@patchwork.ozlabs.org; Mon, 01 Nov 2021 06:00:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54050) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mhTzK-0005Sg-Si for qemu-devel@nongnu.org; Mon, 01 Nov 2021 05:52:22 -0400 Received: from mail.loongson.cn ([114.242.206.163]:50334 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mhTzG-0008AZ-8G for qemu-devel@nongnu.org; Mon, 01 Nov 2021 05:52:22 -0400 Received: from kvm-dev1.localdomain (unknown [10.2.5.134]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9Dxn2u3uH9hbKIjAA--.55994S7; Mon, 01 Nov 2021 17:52:09 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Subject: [PATCH v8 05/29] target/loongarch: Add fixed point shift instruction translation Date: Mon, 1 Nov 2021 17:51:27 +0800 Message-Id: <1635760311-20015-6-git-send-email-gaosong@loongson.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1635760311-20015-1-git-send-email-gaosong@loongson.cn> References: <1635760311-20015-1-git-send-email-gaosong@loongson.cn> X-CM-TRANSID: AQAAf9Dxn2u3uH9hbKIjAA--.55994S7 X-Coremail-Antispam: 1UD129KBjvJXoW3Wry3Cr4DZw4kZF4fAr4rGrg_yoWxKF18pr 18CryUGr48XrnrJr9Ivw45uFZ8JrnrCa1jqrWSyr15CF4UX3WDJF1Du3y3KrW7twn3ZFW8 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, thuth@redhat.com, chenhuacai@loongson.cn, philmd@redhat.com, i.qemu@xen0n.name, richard.henderson@linaro.org, laurent@vivier.eu, peterx@redhat.com, f4bug@amsat.org, yangxiaojuan@loongson.cn, alistair.francis@wdc.com, maobibo@loongson.cn, pbonzini@redhat.com, bmeng.cn@gmail.com, alex.bennee@linaro.org, gaosong@loongson.cn Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" 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 Reviewed-by: Richard Henderson Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang --- target/loongarch/insn_trans/trans_shift.c | 131 ++++++++++++++++++++++++++++++ target/loongarch/insns.decode | 26 ++++++ target/loongarch/translate.c | 1 + 3 files changed, 158 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..759d22b --- /dev/null +++ b/target/loongarch/insn_trans/trans_shift.c @@ -0,0 +1,131 @@ +/* + * 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)) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_SIGN); + TCGv src1 = gpr_src(ctx, a->rj, EXT_ZERO); + TCGv src2 = tcg_constant_tl(a->ui5); + + func(dest, src1, src2); + gen_set_gpr(a->rd, dest, EXT_SIGN); + + return true; +} + +static bool gen_r2_ui6(DisasContext *ctx, arg_slli_d *a, + void(*func)(TCGv, TCGv, target_long)) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + + func(dest, src1, a->ui6); + + 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 bool trans_srai_w(DisasContext *ctx, arg_srai_w *a) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + 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_SIGN, 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_shli_tl) +TRANS(srli_w, gen_r2_ui5, tcg_gen_shr_tl) +TRANS(srli_d, gen_r2_ui6, tcg_gen_shri_tl) +TRANS(srai_d, gen_r2_ui6, tcg_gen_sari_tl) +TRANS(rotri_w, gen_r2_ui5, gen_rotr_w) +TRANS(rotri_d, gen_r2_ui6, tcg_gen_rotri_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 412231a..45c1202 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -142,6 +142,7 @@ static void gen_set_gpr(int reg_num, TCGv t, DisasExtend dst_ext) #include "decode-insns.c.inc" #include "insn_trans/trans_arith.c" +#include "insn_trans/trans_shift.c" static void loongarch_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) {