From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 4F8A9C433E0 for ; Thu, 11 Feb 2021 21:58:21 +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 C7AD464DEC for ; Thu, 11 Feb 2021 21:58:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C7AD464DEC Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=nongnu.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37930 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lAJyd-0005NY-R7 for qemu-devel@archiver.kernel.org; Thu, 11 Feb 2021 16:58:19 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:57096) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lAJrt-0006WH-1X for qemu-devel@nongnu.org; Thu, 11 Feb 2021 16:51:21 -0500 Received: from rev.ng ([5.9.113.41]:41643) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lAJrh-00011C-Lw for qemu-devel@nongnu.org; Thu, 11 Feb 2021 16:51:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=rev.ng; s=dkim; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=iVBL2FQXwoDZ9qHafGZ7cLNEGrYQZCe5ZD70MffczE4=; b=SIhXZrydAkyj788lRGd5LpdUFp rv3zqNxZwURmlNAUvYXd3Zy5iIKM8l/M11h8u14fQ7+yNPeedIylnUPer9FjuX7iNALDyI6xjW7aI IGu91U5mGB3NNgPztEzEhj82IdXHf0wpkxbRED1W6rDUspmPjH4245ZTrP/N7AI89rz0=; To: qemu-devel@nongnu.org Cc: tsimpson@quicinc.com, bcain@quicinc.com, babush@rev.ng, nizzo@rev.ng, Alessandro Di Federico Subject: [RFC PATCH 04/10] target/hexagon: introduce new helper functions Date: Thu, 11 Feb 2021 22:50:45 +0100 Message-Id: <20210211215051.2102435-5-ale.qemu@rev.ng> In-Reply-To: <20210211215051.2102435-1-ale.qemu@rev.ng> References: <20210211215051.2102435-1-ale.qemu@rev.ng> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=5.9.113.41; envelope-from=ale@rev.ng; helo=rev.ng X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_PASS=-0.001, T_SPF_HELO_TEMPERROR=0.01 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reply-to: Alessandro Di Federico From: Alessandro Di Federico via From: Niccolò Izzo These helpers will be employed by the idef-parser generated code. Signed-off-by: Alessandro Di Federico --- target/hexagon/genptr.c | 224 ++++++++++++++++++++++++++++++++++++++++ target/hexagon/genptr.h | 19 ++++ 2 files changed, 243 insertions(+) diff --git a/target/hexagon/genptr.c b/target/hexagon/genptr.c index 97de669f38..33446bd713 100644 --- a/target/hexagon/genptr.c +++ b/target/hexagon/genptr.c @@ -334,5 +334,229 @@ static inline void gen_store_conditional8(CPUHexagonState *env, tcg_gen_movi_tl(hex_llsc_addr, ~0); } +void gen_fbrev(TCGv result, TCGv src) +{ + TCGv lo = tcg_temp_new(); + TCGv tmp1 = tcg_temp_new(); + TCGv tmp2 = tcg_temp_new(); + + /* Bit reversal of low 16 bits */ + tcg_gen_andi_tl(lo, src, 0xffff); + tcg_gen_andi_tl(tmp1, lo, 0xaaaa); + tcg_gen_shri_tl(tmp1, tmp1, 1); + tcg_gen_andi_tl(tmp2, lo, 0x5555); + tcg_gen_shli_tl(tmp2, tmp2, 1); + tcg_gen_or_tl(lo, tmp1, tmp2); + tcg_gen_andi_tl(tmp1, lo, 0xcccc); + tcg_gen_shri_tl(tmp1, tmp1, 2); + tcg_gen_andi_tl(tmp2, lo, 0x3333); + tcg_gen_shli_tl(tmp2, tmp2, 2); + tcg_gen_or_tl(lo, tmp1, tmp2); + tcg_gen_andi_tl(tmp1, lo, 0xf0f0); + tcg_gen_shri_tl(tmp1, tmp1, 4); + tcg_gen_andi_tl(tmp2, lo, 0x0f0f); + tcg_gen_shli_tl(tmp2, tmp2, 4); + tcg_gen_or_tl(lo, tmp1, tmp2); + tcg_gen_bswap16_tl(lo, lo); + + /* Final tweaks */ + tcg_gen_andi_tl(result, src, 0xffff0000); + tcg_gen_ori_tl(result, lo, 8); + + tcg_temp_free(lo); + tcg_temp_free(tmp1); + tcg_temp_free(tmp2); +} + +TCGv gen_set_bit(int i, TCGv result, TCGv src) +{ + TCGv mask = tcg_const_tl(~(1 << i)); + TCGv bit = tcg_temp_new(); + tcg_gen_shli_tl(bit, src, i); + tcg_gen_and_tl(result, result, mask); + tcg_gen_or_tl(result, result, bit); + tcg_temp_free(mask); + tcg_temp_free(bit); + + return result; +} + +void gen_cancel(TCGv slot) +{ + TCGv one = tcg_const_tl(1); + TCGv mask = tcg_temp_new(); + tcg_gen_shl_tl(mask, one, slot); + tcg_gen_or_tl(hex_slot_cancelled, hex_slot_cancelled, mask); + tcg_temp_free(one); + tcg_temp_free(mask); +} + +void gen_store32(TCGv vaddr, TCGv src, int width, int slot) +{ + tcg_gen_mov_tl(hex_store_addr[slot], vaddr); + tcg_gen_movi_tl(hex_store_width[slot], width); + tcg_gen_mov_tl(hex_store_val32[slot], src); +} + +void gen_store1(TCGv_env cpu_env, TCGv vaddr, TCGv src, DisasContext *ctx, + int slot) +{ + gen_store32(vaddr, src, 1, slot); + ctx->store_width[slot] = 1; +} + +void gen_store2(TCGv_env cpu_env, TCGv vaddr, TCGv src, DisasContext *ctx, + int slot) +{ + gen_store32(vaddr, src, 2, slot); + ctx->store_width[slot] = 2; +} + +void gen_store4(TCGv_env cpu_env, TCGv vaddr, TCGv src, DisasContext *ctx, + int slot) +{ + gen_store32(vaddr, src, 4, slot); + ctx->store_width[slot] = 4; +} + + +void gen_store8(TCGv_env cpu_env, TCGv vaddr, TCGv_i64 src, DisasContext *ctx, + int slot) +{ + tcg_gen_mov_tl(hex_store_addr[slot], vaddr); + tcg_gen_movi_tl(hex_store_width[slot], 8); + tcg_gen_mov_i64(hex_store_val64[slot], src); + ctx->store_width[slot] = 8; +} + +void gen_set_usr_field(int field, TCGv val) +{ + tcg_gen_deposit_tl(hex_gpr[HEX_REG_USR], hex_gpr[HEX_REG_USR], val, + reg_field_info[field].offset, + reg_field_info[field].width); +} + +void gen_set_usr_fieldi(int field, int x) +{ + TCGv val = tcg_const_tl(x); + gen_set_usr_field(field, val); + tcg_temp_free(val); +} + +void gen_write_new_pc(TCGv addr) +{ + /* If there are multiple branches in a packet, ignore the second one */ + TCGv zero = tcg_const_tl(0); + tcg_gen_movcond_tl(TCG_COND_NE, hex_next_PC, hex_branch_taken, zero, + hex_next_PC, addr); + tcg_gen_movi_tl(hex_branch_taken, 1); + tcg_temp_free(zero); +} + +void gen_sat_i32(TCGv dest, TCGv source, int width, bool set_overflow) +{ + TCGv max_val = tcg_const_i32((1 << (width - 1)) - 1); + TCGv min_val = tcg_const_i32(-(1 << (width - 1))); + tcg_gen_movcond_i32(TCG_COND_GT, dest, source, max_val, max_val, source); + tcg_gen_movcond_i32(TCG_COND_LT, dest, source, min_val, min_val, dest); + /* Set Overflow Bit */ + if (set_overflow) { + TCGv ovf = tcg_temp_new(); + TCGv one = tcg_const_i32(1); + GET_USR_FIELD(USR_OVF, ovf); + tcg_gen_movcond_i32(TCG_COND_GT, ovf, source, max_val, one, ovf); + tcg_gen_movcond_i32(TCG_COND_LT, ovf, source, min_val, one, ovf); + SET_USR_FIELD(USR_OVF, ovf); + tcg_temp_free_i32(ovf); + tcg_temp_free_i32(one); + } + tcg_temp_free_i32(max_val); + tcg_temp_free_i32(min_val); +} + +void gen_satu_i32(TCGv dest, TCGv source, int width, bool set_overflow) +{ + TCGv max_val = tcg_const_i32((1 << width) - 1); + tcg_gen_movcond_i32(TCG_COND_GTU, dest, source, max_val, max_val, source); + TCGv_i32 zero = tcg_const_i32(0); + tcg_gen_movcond_i32(TCG_COND_LT, dest, source, zero, zero, dest); + /* Set Overflow Bit */ + if (set_overflow) { + TCGv ovf = tcg_temp_new(); + TCGv one = tcg_const_i32(1); + GET_USR_FIELD(USR_OVF, ovf); + tcg_gen_movcond_i32(TCG_COND_GTU, ovf, source, max_val, one, ovf); + SET_USR_FIELD(USR_OVF, ovf); + tcg_temp_free_i32(ovf); + tcg_temp_free_i32(one); + } + tcg_temp_free_i32(max_val); + tcg_temp_free_i32(zero); +} + +void gen_sat_i64(TCGv_i64 dest, TCGv_i64 source, int width, bool set_overflow) +{ + TCGv_i64 max_val = tcg_const_i64((1 << (width - 1)) - 1); + TCGv_i64 min_val = tcg_const_i64(-(1 << (width - 1))); + tcg_gen_movcond_i64(TCG_COND_GT, dest, source, max_val, max_val, source); + tcg_gen_movcond_i64(TCG_COND_LT, dest, source, min_val, min_val, dest); + /* Set Overflow Bit */ + if (set_overflow) { + TCGv ovf = tcg_temp_new(); + TCGv_i64 ovf_ext = tcg_temp_new_i64(); + TCGv_i64 one = tcg_const_i64(1); + GET_USR_FIELD(USR_OVF, ovf); + tcg_gen_ext_i32_i64(ovf_ext, ovf); + tcg_gen_movcond_i64(TCG_COND_GT, + ovf_ext, + source, + max_val, + one, + ovf_ext); + tcg_gen_movcond_i64(TCG_COND_LT, + ovf_ext, + source, + min_val, + one, + ovf_ext); + tcg_gen_trunc_i64_tl(ovf, ovf_ext); + SET_USR_FIELD(USR_OVF, ovf); + tcg_temp_free_i32(ovf); + tcg_temp_free_i64(ovf_ext); + tcg_temp_free_i64(one); + } + tcg_temp_free_i64(max_val); + tcg_temp_free_i64(min_val); +} + +void gen_satu_i64(TCGv_i64 dest, TCGv_i64 source, int width, bool set_overflow) +{ + TCGv_i64 max_val = tcg_const_i64((1 << width) - 1); + tcg_gen_movcond_i64(TCG_COND_GTU, dest, source, max_val, max_val, source); + TCGv_i64 zero = tcg_const_i64(0); + tcg_gen_movcond_i64(TCG_COND_LT, dest, source, zero, zero, dest); + /* Set Overflow Bit */ + if (set_overflow) { + TCGv ovf = tcg_temp_new(); + TCGv_i64 ovf_ext = tcg_temp_new_i64(); + TCGv_i64 one = tcg_const_i64(1); + GET_USR_FIELD(USR_OVF, ovf); + tcg_gen_ext_i32_i64(ovf_ext, ovf); + tcg_gen_movcond_i64(TCG_COND_GTU, + ovf_ext, + source, + max_val, + one, + ovf_ext); + tcg_gen_trunc_i64_tl(ovf, ovf_ext); + SET_USR_FIELD(USR_OVF, ovf); + tcg_temp_free_i32(ovf); + tcg_temp_free_i64(ovf_ext); + tcg_temp_free_i64(one); + } + tcg_temp_free_i64(max_val); + tcg_temp_free_i64(zero); +} + #include "tcg_funcs_generated.c.inc" #include "tcg_func_table_generated.c.inc" diff --git a/target/hexagon/genptr.h b/target/hexagon/genptr.h index 0bfa99b463..e7f8f2c469 100644 --- a/target/hexagon/genptr.h +++ b/target/hexagon/genptr.h @@ -28,5 +28,24 @@ TCGv gen_read_reg(TCGv result, int num); TCGv gen_read_preg(TCGv pred, uint8_t num); void gen_log_reg_write(int rnum, TCGv val); void gen_log_pred_write(int pnum, TCGv val); +void gen_fbrev(TCGv result, TCGv src); +void gen_cancel(TCGv slot); +TCGv gen_set_bit(int i, TCGv result, TCGv src); +void gen_store32(TCGv vaddr, TCGv src, int width, int slot); +void gen_store1(TCGv_env cpu_env, TCGv vaddr, TCGv src, DisasContext *ctx, + int slot); +void gen_store2(TCGv_env cpu_env, TCGv vaddr, TCGv src, DisasContext *ctx, + int slot); +void gen_store4(TCGv_env cpu_env, TCGv vaddr, TCGv src, DisasContext *ctx, + int slot); +void gen_store8(TCGv_env cpu_env, TCGv vaddr, TCGv_i64 src, DisasContext *ctx, + int slot); +void gen_set_usr_field(int field, TCGv val); +void gen_set_usr_fieldi(int field, int x); +void gen_write_new_pc(TCGv addr); +void gen_sat_i32(TCGv dest, TCGv source, int width, bool set_overflow); +void gen_satu_i32(TCGv dest, TCGv source, int width, bool set_overflow); +void gen_sat_i64(TCGv_i64 dest, TCGv_i64 source, int width, bool set_overflow); +void gen_satu_i64(TCGv_i64 dest, TCGv_i64 source, int width, bool set_overflow); #endif -- 2.30.0