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([43.252.112.200]) by smtp.gmail.com with ESMTPSA id r14-20020a62e40e000000b006e025030700sm627478pfh.190.2024.02.05.19.05.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 19:05:35 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, gustavo.romero@linaro.org Subject: [PATCH v2 1/6] linux-user/aarch64: Extend PR_SET_TAGGED_ADDR_CTRL for FEAT_MTE3 Date: Tue, 6 Feb 2024 13:05:22 +1000 Message-Id: <20240206030527.169147-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240206030527.169147-1-richard.henderson@linaro.org> References: <20240206030527.169147-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::434; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x434.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org When MTE3 is supported, the kernel maps PR_MTE_TCF_ASYNC | PR_MTE_TCF_SYNC to MTE_CTRL_TCF_ASYMM and from there to SCTLR_EL1.TCF0 = 3 There is no error reported for setting ASYNC | SYNC when MTE3 is not supported; the kernel simply selects the ASYNC behavior of TCF0=2. Signed-off-by: Richard Henderson Reviewed-by: Gustavo Romero --- linux-user/aarch64/target_prctl.h | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/linux-user/aarch64/target_prctl.h b/linux-user/aarch64/target_prctl.h index 5067e7d731..49bd16aa95 100644 --- a/linux-user/aarch64/target_prctl.h +++ b/linux-user/aarch64/target_prctl.h @@ -173,21 +173,22 @@ static abi_long do_prctl_set_tagged_addr_ctrl(CPUArchState *env, abi_long arg2) env->tagged_addr_enable = arg2 & PR_TAGGED_ADDR_ENABLE; if (cpu_isar_feature(aa64_mte, cpu)) { - switch (arg2 & PR_MTE_TCF_MASK) { - case PR_MTE_TCF_NONE: - case PR_MTE_TCF_SYNC: - case PR_MTE_TCF_ASYNC: - break; - default: - return -EINVAL; - } - /* * Write PR_MTE_TCF to SCTLR_EL1[TCF0]. - * Note that the syscall values are consistent with hw. + * Note that SYNC | ASYNC -> ASYMM with FEAT_MTE3, + * otherwise mte_update_sctlr_user chooses ASYNC. */ - env->cp15.sctlr_el[1] = - deposit64(env->cp15.sctlr_el[1], 38, 2, arg2 >> PR_MTE_TCF_SHIFT); + unsigned tcf = 0; + if (arg2 & PR_MTE_TCF_ASYNC) { + if ((arg2 & PR_MTE_TCF_SYNC) && cpu_isar_feature(aa64_mte3, cpu)) { + tcf = 3; + } else { + tcf = 2; + } + } else if (arg2 & PR_MTE_TCF_SYNC) { + tcf = 1; + } + env->cp15.sctlr_el[1] = deposit64(env->cp15.sctlr_el[1], 38, 2, tcf); /* * Write PR_MTE_TAG to GCR_EL1[Exclude]. 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([43.252.112.200]) by smtp.gmail.com with ESMTPSA id r14-20020a62e40e000000b006e025030700sm627478pfh.190.2024.02.05.19.05.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 19:05:38 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, gustavo.romero@linaro.org, qemu-stable@nongnu.org Subject: [PATCH v2 2/6] target/arm: Fix nregs computation in do_ld_zpa Date: Tue, 6 Feb 2024 13:05:23 +1000 Message-Id: <20240206030527.169147-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240206030527.169147-1-richard.henderson@linaro.org> References: <20240206030527.169147-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::52d; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52d.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org The field is encoded as [0-3], which is convenient for indexing our array of function pointers, but the true value is [1-4]. Adjust before calling do_mem_zpa. Add an assert, and move the comment re passing ZT to the helper back next to the relevant code. Cc: qemu-stable@nongnu.org Fixes: 206adacfb8d ("target/arm: Add mte helpers for sve scalar + int loads") Signed-off-by: Richard Henderson --- target/arm/tcg/translate-sve.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c index 296e7d1ce2..f50a426c98 100644 --- a/target/arm/tcg/translate-sve.c +++ b/target/arm/tcg/translate-sve.c @@ -4445,11 +4445,7 @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, TCGv_ptr t_pg; int desc = 0; - /* - * For e.g. LD4, there are not enough arguments to pass all 4 - * registers as pointers, so encode the regno into the data field. - * For consistency, do this even for LD1. - */ + assert(mte_n >= 1 && mte_n <= 4); if (s->mte_active[0]) { int msz = dtype_msz(dtype); @@ -4463,6 +4459,11 @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, addr = clean_data_tbi(s, addr); } + /* + * For e.g. LD4, there are not enough arguments to pass all 4 + * registers as pointers, so encode the regno into the data field. + * For consistency, do this even for LD1. + */ desc = simd_desc(vsz, vsz, zt | desc); t_pg = tcg_temp_new_ptr(); @@ -4600,7 +4601,7 @@ static void do_ld_zpa(DisasContext *s, int zt, int pg, * accessible via the instruction encoding. */ assert(fn != NULL); - do_mem_zpa(s, zt, pg, addr, dtype, nreg, false, fn); + do_mem_zpa(s, zt, pg, addr, dtype, nreg + 1, false, fn); } static bool trans_LD_zprr(DisasContext *s, arg_rprr_load *a) From patchwork Tue Feb 6 03:05:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 770357 Delivered-To: patch@linaro.org Received: by 2002:adf:a31e:0:b0:33b:466b:cea8 with SMTP id c30csp100776wrb; Mon, 5 Feb 2024 19:08:11 -0800 (PST) X-Google-Smtp-Source: AGHT+IHjSkqGqcobI+Yn41lS1uMZrTf0xFhINB5Arryl5GhzdjUaltNacIfml8O8FhuAf/1kHV0X X-Received: by 2002:a05:620a:4724:b0:785:5d68:e163 with SMTP id bs36-20020a05620a472400b007855d68e163mr1945669qkb.9.1707188891526; Mon, 05 Feb 2024 19:08:11 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1707188891; cv=none; d=google.com; s=arc-20160816; b=YYKFDgg2b9s8FBHTHsTZsh6AmWaBQYBbf0T+yR7ybvlPURV+RAHDkyyD9Y5yCQzl8j P/UJTwcnZA1+M7Z/Enxv8uLPIdHtnogHUiBJkFS2AulCtNrajXNxBSDzYnMclI1hvMEo mBYMAZIwUuOLJ4MISGxOJ4O9eoEfp6eq4dtACDXNxX3O/OtpP0cyjE723vfKxsx+a6yo 0fEfN2uoN79T0ucKfqIO8abHYxECPbsCcjClvwq8uUSTe1Gsvhd886XiRHaXVBZveII2 a0MvBS0uDHNZjYggij0pkmyMw5w6wU4X2K2H721CL86DvV+zUmpBUU2D2jy3CEToORLz ryBw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=gHPXu0j0nAO0+SMsvMvHJ8lHzrBgl7Y3ITORBgFmLRk=; fh=MplbrsGqdBptB7s/2RhQeBjlv5CMRwMEM6uwiPY1J+4=; b=GlFTKUnT+zkdRXyZoCHgZX3NvCJNTPZ4ZZlMik3YZuiqTUbnz21DmDDGAC6AAWnwvU xXqHdXWmUNKDpAZg/Lg+LxnS4kDEU+e9M+CbqRv+NzszELgOse74CqVIyg25SyP+lkKe GeeZjk+aRTgOcayvA2sOmAYUI7q59WPMyDp7aE9wZFWGdV/MYowszPHK5QxecDrZYSzA 1rHzjiOl1U64T3NEJ+j3ABj9cNvkJ+utcagLeirIKK5EHU0mbHWZoAjkOzFVvCoF2cmr 58PFzR3EwQxlTeGQGErJ+E0XR0UrSiv064mUZbkyk6lH4Wcc04ThSI3/qh5mcGt0+ZDU QE+A==; darn=linaro.org ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=U8orwk48; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org X-Forwarded-Encrypted: i=0; AJvYcCU3s6sw9ebL7XKIuxblujrzrCSAQIrLx4ozqGfh7oA/tgscImtZblIj6on73UYAiwVRmG0TZlHuI5h+VPKt53A2 Return-Path: Received: from lists.gnu.org (lists.gnu.org. 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([43.252.112.200]) by smtp.gmail.com with ESMTPSA id r14-20020a62e40e000000b006e025030700sm627478pfh.190.2024.02.05.19.05.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 19:05:40 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, gustavo.romero@linaro.org Subject: [PATCH v2 3/6] target/arm: Adjust and validate mtedesc sizem1 Date: Tue, 6 Feb 2024 13:05:24 +1000 Message-Id: <20240206030527.169147-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240206030527.169147-1-richard.henderson@linaro.org> References: <20240206030527.169147-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::52a; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52a.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org When we added SVE_MTEDESC_SHIFT, we effectively limited the maximum size of MTEDESC. Adjust SIZEM1 to consume the remaining bits (32 - 10 - 5 - 12 == 5). Assert that the data to be stored fits within the field (expecting 8 * 4 - 1 == 31, exact fit). Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/internals.h | 2 +- target/arm/tcg/translate-sve.c | 7 ++++--- 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/target/arm/internals.h b/target/arm/internals.h index fc337fe40e..50bff44549 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -1278,7 +1278,7 @@ FIELD(MTEDESC, TBI, 4, 2) FIELD(MTEDESC, TCMA, 6, 2) FIELD(MTEDESC, WRITE, 8, 1) FIELD(MTEDESC, ALIGN, 9, 3) -FIELD(MTEDESC, SIZEM1, 12, SIMD_DATA_BITS - 12) /* size - 1 */ +FIELD(MTEDESC, SIZEM1, 12, SIMD_DATA_BITS - SVE_MTEDESC_SHIFT - 12) /* size - 1 */ bool mte_probe(CPUARMState *env, uint32_t desc, uint64_t ptr); uint64_t mte_check(CPUARMState *env, uint32_t desc, uint64_t ptr, uintptr_t ra); diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c index f50a426c98..2628ac2840 100644 --- a/target/arm/tcg/translate-sve.c +++ b/target/arm/tcg/translate-sve.c @@ -4443,17 +4443,18 @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, { unsigned vsz = vec_full_reg_size(s); TCGv_ptr t_pg; + uint32_t sizem1; int desc = 0; assert(mte_n >= 1 && mte_n <= 4); + sizem1 = (mte_n << dtype_msz(dtype)) - 1; + assert(sizem1 <= R_MTEDESC_SIZEM1_MASK >> R_MTEDESC_SIZEM1_SHIFT); if (s->mte_active[0]) { - int msz = dtype_msz(dtype); - desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s)); desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid); desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma); desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write); - desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (mte_n << msz) - 1); + desc = FIELD_DP32(desc, MTEDESC, SIZEM1, sizem1); desc <<= SVE_MTEDESC_SHIFT; } else { addr = clean_data_tbi(s, addr); From patchwork Tue Feb 6 03:05:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 770354 Delivered-To: patch@linaro.org Received: by 2002:adf:a31e:0:b0:33b:466b:cea8 with SMTP id c30csp100524wrb; Mon, 5 Feb 2024 19:07:08 -0800 (PST) X-Google-Smtp-Source: AGHT+IFSRo6Tgj6g7byBq7G2mTzjkZikH0yGWjxfsOzd0AGFNtb+4WTo49mhm+KpNiMIGx9az+l+ X-Received: by 2002:ac8:4b50:0:b0:42c:2648:323f with SMTP id e16-20020ac84b50000000b0042c2648323fmr1182691qts.55.1707188827942; Mon, 05 Feb 2024 19:07:07 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1707188827; cv=none; d=google.com; s=arc-20160816; b=v2zWLDN3fjiez/k9L29JsJTn+3KMau6683I1NNu4sV+kjkAlXzFpbsd+A/DFE7huUV 0tTwo3v03d8J38mRQuApHRKXoLQLxlZcGjY7urvqDxO/+61TJDl6Lc0Q0qyD+SWPUSeJ tr2Os6FtryiHfkbHHM4ZZFP74GRYN4Y1V1bXoienvtRK6FQ1i5JbNzgpiemOQYSCECDe OyZaMiTh5SJQzrlXdvNAV36CtLavtKgx5p+yn66SC6tEFkolESHvUhNhgccP9O5hxDiv 31H8tmLP2MEYZkS9DEcTIDseYz/b62Z1y+ymzRaDhU4pYnhw0oJsIy6MO/YjcIItuc7h QqaA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=UvbHuxgxiU+JJoqA2yzeDB/PI/mathl0ihpskMBLoOU=; fh=W63/N483Zn7FsAqZUhHBjdlaauRCf3jvgFhyEAarXmw=; b=ZBBTXZ6gdqGT7vAd2TcxGcjX4C0xvgYl1VfrJVXhJCaWY1ldbp6vfsK/4K4gFnD4Pm 8ekJvLZIWOqNiKJqfmhbWSKSPmkzSBBoAA7LvNXnx6uqbkGw+46ZdaCxizO3qGZDclm3 iNjROJlDWrpLD64buCezJf2taRcEZ5VG53C+QmOvklSyGKC16F3Tz6syEduFbjhWf2Kq fTM1P3Uy7XHcVnsyhXZ9OXbWQo9lRmIgFmeS1s0WvbiyCUEazXELOWxBMv7ug0/YldyF N5EwwBt6BGJkTkEPj9aE8vdkYxde2s7JuSnuF3zKJK/TxL0WYK6TruYWsbhEmxYvQSIW X7mQ==; darn=linaro.org ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=ivHz2GOg; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org X-Forwarded-Encrypted: i=0; AJvYcCV2Ayr3HJN2215M+GZ7GGY2oxnXGq4j7wfCZ/VrA8MxM53891ZUgsfuZqzgbkvqYGN/hm/4QAg+gKbBNZ88GKLy Return-Path: Received: from lists.gnu.org (lists.gnu.org. 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([43.252.112.200]) by smtp.gmail.com with ESMTPSA id r14-20020a62e40e000000b006e025030700sm627478pfh.190.2024.02.05.19.05.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 19:05:43 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, gustavo.romero@linaro.org Subject: [PATCH v2 4/6] target/arm: Split out make_svemte_desc Date: Tue, 6 Feb 2024 13:05:25 +1000 Message-Id: <20240206030527.169147-5-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240206030527.169147-1-richard.henderson@linaro.org> References: <20240206030527.169147-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::c2c; envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc2c.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Share code that creates mtedesc and embeds within simd_desc. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/tcg/translate-a64.h | 2 ++ target/arm/tcg/translate-sme.c | 15 +++-------- target/arm/tcg/translate-sve.c | 47 ++++++++++++++++++---------------- 3 files changed, 31 insertions(+), 33 deletions(-) diff --git a/target/arm/tcg/translate-a64.h b/target/arm/tcg/translate-a64.h index 96ba39b37e..7b811b8ac5 100644 --- a/target/arm/tcg/translate-a64.h +++ b/target/arm/tcg/translate-a64.h @@ -28,6 +28,8 @@ bool logic_imm_decode_wmask(uint64_t *result, unsigned int immn, bool sve_access_check(DisasContext *s); bool sme_enabled_check(DisasContext *s); bool sme_enabled_check_with_svcr(DisasContext *s, unsigned); +uint32_t make_svemte_desc(DisasContext *s, unsigned vsz, uint32_t nregs, + uint32_t msz, bool is_write, uint32_t data); /* This function corresponds to CheckStreamingSVEEnabled. */ static inline bool sme_sm_enabled_check(DisasContext *s) diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c index 8f0dfc884e..46c7fce8b4 100644 --- a/target/arm/tcg/translate-sme.c +++ b/target/arm/tcg/translate-sme.c @@ -206,7 +206,7 @@ static bool trans_LDST1(DisasContext *s, arg_LDST1 *a) TCGv_ptr t_za, t_pg; TCGv_i64 addr; - int svl, desc = 0; + uint32_t desc; bool be = s->be_data == MO_BE; bool mte = s->mte_active[0]; @@ -224,18 +224,11 @@ static bool trans_LDST1(DisasContext *s, arg_LDST1 *a) tcg_gen_shli_i64(addr, cpu_reg(s, a->rm), a->esz); tcg_gen_add_i64(addr, addr, cpu_reg_sp(s, a->rn)); - if (mte) { - desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s)); - desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid); - desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma); - desc = FIELD_DP32(desc, MTEDESC, WRITE, a->st); - desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (1 << a->esz) - 1); - desc <<= SVE_MTEDESC_SHIFT; - } else { + if (!mte) { addr = clean_data_tbi(s, addr); } - svl = streaming_vec_reg_size(s); - desc = simd_desc(svl, svl, desc); + + desc = make_svemte_desc(s, streaming_vec_reg_size(s), 1, a->esz, a->st, 0); fns[a->esz][be][a->v][mte][a->st](tcg_env, t_za, t_pg, addr, tcg_constant_i32(desc)); diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c index 2628ac2840..8868aae5ac 100644 --- a/target/arm/tcg/translate-sve.c +++ b/target/arm/tcg/translate-sve.c @@ -4437,18 +4437,18 @@ static const uint8_t dtype_esz[16] = { 3, 2, 1, 3 }; -static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, - int dtype, uint32_t mte_n, bool is_write, - gen_helper_gvec_mem *fn) +uint32_t make_svemte_desc(DisasContext *s, unsigned vsz, uint32_t nregs, + uint32_t msz, bool is_write, uint32_t data) { - unsigned vsz = vec_full_reg_size(s); - TCGv_ptr t_pg; uint32_t sizem1; - int desc = 0; + uint32_t desc = 0; - assert(mte_n >= 1 && mte_n <= 4); - sizem1 = (mte_n << dtype_msz(dtype)) - 1; + /* Assert all of the data fits, with or without MTE enabled. */ + assert(nregs >= 1 && nregs <= 4); + sizem1 = (nregs << msz) - 1; assert(sizem1 <= R_MTEDESC_SIZEM1_MASK >> R_MTEDESC_SIZEM1_SHIFT); + assert(data < 1u << SVE_MTEDESC_SHIFT); + if (s->mte_active[0]) { desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s)); desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid); @@ -4456,7 +4456,18 @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write); desc = FIELD_DP32(desc, MTEDESC, SIZEM1, sizem1); desc <<= SVE_MTEDESC_SHIFT; - } else { + } + return simd_desc(vsz, vsz, desc | data); +} + +static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, + int dtype, uint32_t nregs, bool is_write, + gen_helper_gvec_mem *fn) +{ + TCGv_ptr t_pg; + uint32_t desc; + + if (!s->mte_active[0]) { addr = clean_data_tbi(s, addr); } @@ -4465,7 +4476,8 @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr, * registers as pointers, so encode the regno into the data field. * For consistency, do this even for LD1. */ - desc = simd_desc(vsz, vsz, zt | desc); + desc = make_svemte_desc(s, vec_full_reg_size(s), nregs, + dtype_msz(dtype), is_write, zt); t_pg = tcg_temp_new_ptr(); tcg_gen_addi_ptr(t_pg, tcg_env, pred_full_reg_offset(s, pg)); @@ -5225,25 +5237,16 @@ static void do_mem_zpz(DisasContext *s, int zt, int pg, int zm, int scale, TCGv_i64 scalar, int msz, bool is_write, gen_helper_gvec_mem_scatter *fn) { - unsigned vsz = vec_full_reg_size(s); TCGv_ptr t_zm = tcg_temp_new_ptr(); TCGv_ptr t_pg = tcg_temp_new_ptr(); TCGv_ptr t_zt = tcg_temp_new_ptr(); - int desc = 0; - - if (s->mte_active[0]) { - desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s)); - desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid); - desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma); - desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write); - desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (1 << msz) - 1); - desc <<= SVE_MTEDESC_SHIFT; - } - desc = simd_desc(vsz, vsz, desc | scale); + uint32_t desc; tcg_gen_addi_ptr(t_pg, tcg_env, pred_full_reg_offset(s, pg)); tcg_gen_addi_ptr(t_zm, tcg_env, vec_full_reg_offset(s, zm)); tcg_gen_addi_ptr(t_zt, tcg_env, vec_full_reg_offset(s, zt)); + + desc = make_svemte_desc(s, vec_full_reg_size(s), 1, msz, is_write, scale); fn(tcg_env, t_zt, t_pg, t_zm, scalar, tcg_constant_i32(desc)); } From patchwork Tue Feb 6 03:05:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 770352 Delivered-To: patch@linaro.org Received: by 2002:adf:a31e:0:b0:33b:466b:cea8 with SMTP id c30csp100523wrb; 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([43.252.112.200]) by smtp.gmail.com with ESMTPSA id r14-20020a62e40e000000b006e025030700sm627478pfh.190.2024.02.05.19.05.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 19:05:46 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, gustavo.romero@linaro.org Subject: [PATCH v2 5/6] target/arm: Handle mte in do_ldrq, do_ldro Date: Tue, 6 Feb 2024 13:05:26 +1000 Message-Id: <20240206030527.169147-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240206030527.169147-1-richard.henderson@linaro.org> References: <20240206030527.169147-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::c2e; envelope-from=richard.henderson@linaro.org; helo=mail-oo1-xc2e.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org These functions "use the standard load helpers", but fail to clean_data_tbi or populate mtedesc. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/tcg/translate-sve.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c index 8868aae5ac..fb3bcb47f6 100644 --- a/target/arm/tcg/translate-sve.c +++ b/target/arm/tcg/translate-sve.c @@ -4861,8 +4861,13 @@ static void do_ldrq(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype) unsigned vsz = vec_full_reg_size(s); TCGv_ptr t_pg; int poff; + uint32_t desc; /* Load the first quadword using the normal predicated load helpers. */ + if (!s->mte_active[0]) { + addr = clean_data_tbi(s, addr); + } + poff = pred_full_reg_offset(s, pg); if (vsz > 16) { /* @@ -4886,7 +4891,8 @@ static void do_ldrq(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype) gen_helper_gvec_mem *fn = ldr_fns[s->mte_active[0]][s->be_data == MO_BE][dtype][0]; - fn(tcg_env, t_pg, addr, tcg_constant_i32(simd_desc(16, 16, zt))); + desc = make_svemte_desc(s, 16, 1, dtype_msz(dtype), false, zt); + fn(tcg_env, t_pg, addr, tcg_constant_i32(desc)); /* Replicate that first quadword. */ if (vsz > 16) { @@ -4929,6 +4935,7 @@ static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype) unsigned vsz_r32; TCGv_ptr t_pg; int poff, doff; + uint32_t desc; if (vsz < 32) { /* @@ -4941,6 +4948,9 @@ static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype) } /* Load the first octaword using the normal predicated load helpers. */ + if (!s->mte_active[0]) { + addr = clean_data_tbi(s, addr); + } poff = pred_full_reg_offset(s, pg); if (vsz > 32) { @@ -4965,7 +4975,8 @@ static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype) gen_helper_gvec_mem *fn = ldr_fns[s->mte_active[0]][s->be_data == MO_BE][dtype][0]; - fn(tcg_env, t_pg, addr, tcg_constant_i32(simd_desc(32, 32, zt))); + desc = make_svemte_desc(s, 32, 1, dtype_msz(dtype), false, zt); + fn(tcg_env, t_pg, addr, tcg_constant_i32(desc)); /* * Replicate that first octaword. 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([43.252.112.200]) by smtp.gmail.com with ESMTPSA id r14-20020a62e40e000000b006e025030700sm627478pfh.190.2024.02.05.19.05.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 19:05:48 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, gustavo.romero@linaro.org Subject: [PATCH v2 6/6] target/arm: Fix SVE/SME gross MTE suppression checks Date: Tue, 6 Feb 2024 13:05:27 +1000 Message-Id: <20240206030527.169147-7-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240206030527.169147-1-richard.henderson@linaro.org> References: <20240206030527.169147-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::435; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x435.google.com 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org The TBI and TCMA bits are located within mtedesc, not desc. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/tcg/sme_helper.c | 8 ++++---- target/arm/tcg/sve_helper.c | 12 ++++++------ 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/target/arm/tcg/sme_helper.c b/target/arm/tcg/sme_helper.c index 1ee2690ceb..904bfdac43 100644 --- a/target/arm/tcg/sme_helper.c +++ b/target/arm/tcg/sme_helper.c @@ -573,8 +573,8 @@ void sme_ld1_mte(CPUARMState *env, void *za, uint64_t *vg, desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT); /* Perform gross MTE suppression early. */ - if (!tbi_check(desc, bit55) || - tcma_check(desc, bit55, allocation_tag_from_addr(addr))) { + if (!tbi_check(mtedesc, bit55) || + tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) { mtedesc = 0; } @@ -750,8 +750,8 @@ void sme_st1_mte(CPUARMState *env, void *za, uint64_t *vg, target_ulong addr, desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT); /* Perform gross MTE suppression early. */ - if (!tbi_check(desc, bit55) || - tcma_check(desc, bit55, allocation_tag_from_addr(addr))) { + if (!tbi_check(mtedesc, bit55) || + tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) { mtedesc = 0; } diff --git a/target/arm/tcg/sve_helper.c b/target/arm/tcg/sve_helper.c index bce4295d28..6853f58c19 100644 --- a/target/arm/tcg/sve_helper.c +++ b/target/arm/tcg/sve_helper.c @@ -5800,8 +5800,8 @@ void sve_ldN_r_mte(CPUARMState *env, uint64_t *vg, target_ulong addr, desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT); /* Perform gross MTE suppression early. */ - if (!tbi_check(desc, bit55) || - tcma_check(desc, bit55, allocation_tag_from_addr(addr))) { + if (!tbi_check(mtedesc, bit55) || + tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) { mtedesc = 0; } @@ -6156,8 +6156,8 @@ void sve_ldnfff1_r_mte(CPUARMState *env, void *vg, target_ulong addr, desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT); /* Perform gross MTE suppression early. */ - if (!tbi_check(desc, bit55) || - tcma_check(desc, bit55, allocation_tag_from_addr(addr))) { + if (!tbi_check(mtedesc, bit55) || + tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) { mtedesc = 0; } @@ -6410,8 +6410,8 @@ void sve_stN_r_mte(CPUARMState *env, uint64_t *vg, target_ulong addr, desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT); /* Perform gross MTE suppression early. */ - if (!tbi_check(desc, bit55) || - tcma_check(desc, bit55, allocation_tag_from_addr(addr))) { + if (!tbi_check(mtedesc, bit55) || + tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) { mtedesc = 0; }