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([2602:ae:1598:4c01:9902:96ac:8d8c:4366]) by smtp.gmail.com with ESMTPSA id i6-20020a1709026ac600b001aadfdfcd06sm8942735plt.299.2023.05.15.07.36.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 May 2023 07:36:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1684161415; x=1686753415; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=DtY46dQ1btaM3hQ34MrgQ/0EC+dDpusLxNLWdyRhtMo=; b=C1NxuCWASvRkqmkfxHc6ktErupL+w5No5cEXZ5xw6iGTz8gM7SpDRfVIoksPFtA8sj GdYFTHaJNMxcO4IfGkIt5xNmuqxeeuMGj4bqz3Jl36QlXTDRF9YJKdUC83yp1xR0+q9Q kGVU5NGx/axkBQ9U/Ifuu/+blj7Nv7GSPz78EFJBI5tQPiDUT8q3+qqZDHtiHyGBhgKn TI0fSX+d3wSruyd/VfmRiNeZtIXzwq1aSqizT8iGvoBkQarmAmSr6ZgnhMbqiwrrXXHs UWemPR0TImK4NkkdMWYhBGUWmj2KW230UVCJPgfqlMyaiOHP+joj3qs6UP6mIRDEGMcc sLcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684161415; x=1686753415; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=DtY46dQ1btaM3hQ34MrgQ/0EC+dDpusLxNLWdyRhtMo=; b=CGI0Wy/fkHslO/ekqwbS52VT8iQbNtAsHuADW8of/DJddwWL71FBU1i7zOJzDMrHRE ZaeHwH+gXDMX8fK/KN0BAg73xXU6TUUDI/+ZKkVsCDnm0CAhL1XJ0xzBJVING4ChtuIf KJcx8LBf+taUyK4Elu/jccc5iKo9Z78J/3fj746ioZwVtVoEmqW+Chl7Y0X6EM58XqT1 JNLSoDN2RkqiKRrhHkKftytQUFW05Z5gfcLKk5gaU5zwDS0gzgJEdO1ufuckQUL9LEKj SQKm5qr6wawdRgHxuQOThHer9MCfm0hV4UciTE6w0bJNvqYpE6UH2i0fouNBdoPv3yn/ tIVw== X-Gm-Message-State: AC+VfDyXYiqOj6AOxKP3kJt19SgRcGavuQidWAEi3hmhL+t8TvqrNqjr qYPKLNAbgnl5Ia7akmAW0jwS8fvFN60B0poxgoU= X-Google-Smtp-Source: ACHHUZ4NobYqBaIXciE3MljHFQG7Lzhz2QKVy4779+0e4m7R+R1rAecRp9Z+36v8kUgmAW4ayoByFA== X-Received: by 2002:a17:902:dc81:b0:1ac:8cd6:9323 with SMTP id n1-20020a170902dc8100b001ac8cd69323mr21982705pld.22.1684161415640; Mon, 15 May 2023 07:36:55 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, qemu-s390x@nongnu.org Subject: [PATCH v5 48/54] tcg/sparc64: Use atom_and_align_for_opc Date: Mon, 15 May 2023 07:33:07 -0700 Message-Id: <20230515143313.734053-49-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230515143313.734053-1-richard.henderson@linaro.org> References: <20230515143313.734053-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::635; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x635.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1684164419319100003 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- tcg/sparc64/tcg-target.c.inc | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/tcg/sparc64/tcg-target.c.inc b/tcg/sparc64/tcg-target.c.inc index bb23038529..9676b745a2 100644 --- a/tcg/sparc64/tcg-target.c.inc +++ b/tcg/sparc64/tcg-target.c.inc @@ -1009,6 +1009,7 @@ static bool tcg_out_qemu_st_slow_path(TCGContext *s, = TCGLabelQemuLdst *lb) typedef struct { TCGReg base; TCGReg index; + TCGAtomAlign aa; } HostAddress; =20 bool tcg_target_has_memory_bswap(MemOp memop) @@ -1028,13 +1029,13 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGConte= xt *s, HostAddress *h, { TCGLabelQemuLdst *ldst =3D NULL; MemOp opc =3D get_memop(oi); - unsigned a_bits =3D get_alignment_bits(opc); - unsigned s_bits =3D opc & MO_SIZE; + MemOp s_bits =3D opc & MO_SIZE; unsigned a_mask; =20 /* We don't support unaligned accesses. */ - a_bits =3D MAX(a_bits, s_bits); - a_mask =3D (1u << a_bits) - 1; + h->aa =3D atom_and_align_for_opc(s, opc, MO_ATOM_IFALIGN, false); + h->aa.align =3D MAX(h->aa.align, s_bits); + a_mask =3D (1u << h->aa.align) - 1; =20 #ifdef CONFIG_SOFTMMU int mem_index =3D get_mmuidx(oi); @@ -1086,11 +1087,13 @@ static TCGLabelQemuLdst *prepare_host_addr(TCGConte= xt *s, HostAddress *h, cc =3D TARGET_LONG_BITS =3D=3D 64 ? BPCC_XCC : BPCC_ICC; tcg_out_bpcc0(s, COND_NE, BPCC_PN | cc, 0); #else - if (a_bits !=3D s_bits) { - /* - * Test for at least natural alignment, and defer - * everything else to the helper functions. - */ + /* + * If the size equals the required alignment, we can skip the test + * and allow host SIGBUS to deliver SIGBUS to the guest. + * Otherwise, test for at least natural alignment and defer + * everything else to the helper functions. + */ + if (s_bits !=3D get_alignment_bits(opc)) { tcg_debug_assert(check_fit_tl(a_mask, 13)); tcg_out_arithi(s, TCG_REG_G0, addr_reg, a_mask, ARITH_ANDCC); =20 --=20 2.34.1