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GET /api/1.2/patches/2234649/?format=api
{ "id": 2234649, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2234649/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260507234413.643512-35-richard.henderson@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.2/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260507234413.643512-35-richard.henderson@linaro.org>", "list_archive_url": null, "date": "2026-05-07T23:43:47", "name": "[v4,34/60] target/arm: Implement FCVT (FP16 to FP8) for SME", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "a832a5ca8b1d425dce4036a8c48d04bf1a4f2c2f", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/1.2/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260507234413.643512-35-richard.henderson@linaro.org/mbox/", "series": [ { "id": 503296, "url": "http://patchwork.ozlabs.org/api/1.2/series/503296/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=503296", "date": "2026-05-07T23:43:14", "name": "target/arm: Implement FEAT_FP8", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/503296/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2234649/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2234649/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=pofbP3AF;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=mail-oi1-x230.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Signed-off-by: Richard Henderson <richard.henderson@linaro.org>\n---\n target/arm/tcg/translate-sme.c | 16 ++++++++++++++++\n target/arm/tcg/sme.decode | 2 ++\n 2 files changed, 18 insertions(+)", "diff": "diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c\nindex 0cbad3e006..050c3cfefe 100644\n--- a/target/arm/tcg/translate-sme.c\n+++ b/target/arm/tcg/translate-sme.c\n@@ -1556,6 +1556,22 @@ TRANS_FEAT(BF2CVT, aa64_sme2_f8cvt, do_f8cvt, a, gen_helper_sme2_bfcvt_hb, 1)\n TRANS_FEAT(BF1CVTL, aa64_sme2_f8cvt, do_f8cvt, a, gen_helper_sme2_bfcvtl_hb, 0)\n TRANS_FEAT(BF2CVTL, aa64_sme2_f8cvt, do_f8cvt, a, gen_helper_sme2_bfcvtl_hb, 1)\n \n+static bool trans_FCVT_bh(DisasContext *s, arg_zz_n *a)\n+{\n+ if (!dc_isar_feature(aa64_sme2_f8cvt, s)) {\n+ return false;\n+ }\n+ if (fpmr_access_check(s) && sme_sm_enabled_check(s)) {\n+ int svl = streaming_vec_reg_size(s);\n+ tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, a->zd),\n+ vec_full_reg_offset(s, a->zn),\n+ vec_full_reg_offset(s, a->zn + 1),\n+ tcg_env, svl, svl,\n+ FPST_ZA << 2, gen_helper_gvec_fcvt_bh);\n+ }\n+ return true;\n+}\n+\n static bool do_zipuzp_4(DisasContext *s, arg_zz_e *a,\n gen_helper_gvec_2 * const fn[5])\n {\ndiff --git a/target/arm/tcg/sme.decode b/target/arm/tcg/sme.decode\nindex d6192eb59d..a02bcc0e22 100644\n--- a/target/arm/tcg/sme.decode\n+++ b/target/arm/tcg/sme.decode\n@@ -863,6 +863,8 @@ BF2CVT 11000001 111 00110 111000 ..... ....0 @zz_2x1\n BF1CVTL 11000001 011 00110 111000 ..... ....1 @zz_2x1\n BF2CVTL 11000001 111 00110 111000 ..... ....1 @zz_2x1\n \n+FCVT_bh 11000001 001 00100 111000 ....0 ..... @zz_1x2\n+\n ZIP_4 11000001 esz:2 1 10110 111000 ...00 ... 00 \\\n &zz_e zd=%zd_ax4 zn=%zn_ax4\n ZIP_4 11000001 001 10111 111000 ...00 ... 00 \\\n", "prefixes": [ "v4", "34/60" ] }