From nobody Mon Feb 9 17:36:53 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail header.i=@quicinc.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=quicinc.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1624987126108650.2102684214068; Tue, 29 Jun 2021 10:18:46 -0700 (PDT) Received: from localhost ([::1]:51384 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lyHNk-0004q1-T2 for importer@patchew.org; Tue, 29 Jun 2021 13:18:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39386) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lyHK7-0005vz-8p for qemu-devel@nongnu.org; Tue, 29 Jun 2021 13:14:59 -0400 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]:17372) by eggs.gnu.org with esmtps (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lyHK5-0001dx-Jl for qemu-devel@nongnu.org; Tue, 29 Jun 2021 13:14:59 -0400 Received: from unknown (HELO ironmsg03-sd.qualcomm.com) ([10.53.140.143]) by alexa-out-sd-01.qualcomm.com with ESMTP; 29 Jun 2021 10:14:51 -0700 Received: from vu-tsimpson-aus.qualcomm.com (HELO vu-tsimpson1-aus.qualcomm.com) ([10.222.150.1]) by ironmsg03-sd.qualcomm.com with ESMTP; 29 Jun 2021 10:14:50 -0700 Received: by vu-tsimpson1-aus.qualcomm.com (Postfix, from userid 47164) id 9A825EB1; Tue, 29 Jun 2021 12:14:50 -0500 (CDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1624986897; x=1656522897; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=xM3m5AnfCb0VrEZ+JUr5xPZv6rH7cbpQy+mPEgBTR+k=; b=WYe2e/lRVbJFaDrRrAqd60ma/ycsD+u4KXRFFSbR+YqZDu63z+i33+ie GCawUT9LAypbfvknq12DXw92MTG1874+CpspbeJeF0xQgAghiqr69i1zS +sTdw/ddtjTuEdziqSvUNETeRTzTTFe9rDnv/e3LbVYrDmdAMX/N743Yb k=; X-QCInternal: smtphost From: Taylor Simpson To: qemu-devel@nongnu.org Subject: [PULL v2 2/4] Hexagon (target/hexagon) fix l2fetch instructions Date: Tue, 29 Jun 2021 12:14:34 -0500 Message-Id: <1624986876-2264-3-git-send-email-tsimpson@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1624986876-2264-1-git-send-email-tsimpson@quicinc.com> References: <1624986876-2264-1-git-send-email-tsimpson@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=199.106.114.38; envelope-from=tsimpson@qualcomm.com; helo=alexa-out-sd-01.qualcomm.com X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.248, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=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: ale@rev.ng, peter.maydell@linaro.org, bcain@quicinc.com, richard.henderson@linaro.org, tsimpson@quicinc.com, philmd@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Y4_l2fetch =3D=3D l2fetch(Rs32, Rt32) Y5_l2fetch =3D=3D l2fetch(Rs32, Rtt32) The semantics for these instructions are present, but the encodings are missing. Note that these are treated as nops in qemu, so we add overrides. Test case added to tests/tcg/hexagon/misc.c Signed-off-by: Taylor Simpson Reviewed-by: Richard Henderson Message-Id: <1622589584-22571-3-git-send-email-tsimpson@quicinc.com> --- target/hexagon/gen_tcg.h | 11 +++++++++++ tests/tcg/hexagon/misc.c | 9 +++++++++ target/hexagon/imported/encode_pp.def | 3 +++ 3 files changed, 23 insertions(+) diff --git a/target/hexagon/gen_tcg.h b/target/hexagon/gen_tcg.h index 18fcdbc..a375d6a 100644 --- a/target/hexagon/gen_tcg.h +++ b/target/hexagon/gen_tcg.h @@ -734,4 +734,15 @@ #define fGEN_TCG_F2_dfmpyhh(SHORTCODE) \ gen_helper_dfmpyhh(RxxV, cpu_env, RxxV, RssV, RttV) =20 +/* Nothing to do for these in qemu, need to suppress compiler warnings */ +#define fGEN_TCG_Y4_l2fetch(SHORTCODE) \ + do { \ + RsV =3D RsV; \ + RtV =3D RtV; \ + } while (0) +#define fGEN_TCG_Y5_l2fetch(SHORTCODE) \ + do { \ + RsV =3D RsV; \ + } while (0) + #endif diff --git a/tests/tcg/hexagon/misc.c b/tests/tcg/hexagon/misc.c index 9e139f3..f0b1947 100644 --- a/tests/tcg/hexagon/misc.c +++ b/tests/tcg/hexagon/misc.c @@ -326,6 +326,13 @@ void test_lsbnew(void) check(result, 5); } =20 +void test_l2fetch(void) +{ + /* These don't do anything in qemu, just make sure they don't assert */ + asm volatile ("l2fetch(r0, r1)\n\t" + "l2fetch(r0, r3:2)\n\t"); +} + int main() { int res; @@ -459,6 +466,8 @@ int main() =20 test_lsbnew(); =20 + test_l2fetch(); + puts(err ? "FAIL" : "PASS"); return err; } diff --git a/target/hexagon/imported/encode_pp.def b/target/hexagon/importe= d/encode_pp.def index 35ae3d2..939c6fc 100644 --- a/target/hexagon/imported/encode_pp.def +++ b/target/hexagon/imported/encode_pp.def @@ -493,6 +493,9 @@ DEF_ENC32(Y2_dccleana, ICLASS_ST" 000 00 00sssss PP= ------ --------") DEF_ENC32(Y2_dcinva, ICLASS_ST" 000 00 01sssss PP------ --------") DEF_ENC32(Y2_dccleaninva, ICLASS_ST" 000 00 10sssss PP------ --------") =20 +DEF_ENC32(Y4_l2fetch, ICLASS_ST" 011 00 00sssss PP-ttttt 000-----") +DEF_ENC32(Y5_l2fetch, ICLASS_ST" 011 01 00sssss PP-ttttt --------") + /*******************************/ /* */ /* */ --=20 2.7.4