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GET /api/1.2/patches/2234706/?format=api
{ "id": 2234706, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2234706/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260507234413.643512-55-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": "<20260507234413.643512-55-richard.henderson@linaro.org>", "list_archive_url": null, "date": "2026-05-07T23:44:07", "name": "[v4,54/60] target/arm: Enable FEAT_FP8DOT2, FEAT_SSVE_FP8DOT2 for -cpu max", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "06305cb1c71fdf330dbd420a38815fc621e70d46", "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/20260507234413.643512-55-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/2234706/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2234706/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=bmayzxRP;\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-oa1-x31.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/cpu64.c | 2 ++\n docs/system/arm/emulation.rst | 2 ++\n 2 files changed, 4 insertions(+)", "diff": "diff --git a/target/arm/tcg/cpu64.c b/target/arm/tcg/cpu64.c\nindex 6dec7e045d..a43b6367a4 100644\n--- a/target/arm/tcg/cpu64.c\n+++ b/target/arm/tcg/cpu64.c\n@@ -1377,6 +1377,7 @@ void aarch64_max_tcg_initfn(Object *obj)\n SET_IDREG(isar, ID_AA64DFR0, t);\n \n t = GET_IDREG(isar, ID_AA64SMFR0);\n+ t = FIELD_DP64(t, ID_AA64SMFR0, SF8DP2, 1); /* FEAT_SSVE_FP8DOT2 */\n t = FIELD_DP64(t, ID_AA64SMFR0, SF8DP4, 1); /* FEAT_SSVE_FP8DOT4 */\n t = FIELD_DP64(t, ID_AA64SMFR0, SF8FMA, 1); /* FEAT_SSVE_FP8FMA */\n t = FIELD_DP64(t, ID_AA64SMFR0, F32F32, 1); /* FEAT_SME */\n@@ -1397,6 +1398,7 @@ void aarch64_max_tcg_initfn(Object *obj)\n t = GET_IDREG(isar, ID_AA64FPFR0);\n t = FIELD_DP64(t, ID_AA64FPFR0, F8E5M2, 1); /* FEAT_FP8 */\n t = FIELD_DP64(t, ID_AA64FPFR0, F8E4M3, 1); /* FEAT_FP8 */\n+ t = FIELD_DP64(t, ID_AA64FPFR0, F8DP2, 1); /* FEAT_FP8DOT2 */\n t = FIELD_DP64(t, ID_AA64FPFR0, F8DP4, 1); /* FEAT_FP8DOT4 */\n t = FIELD_DP64(t, ID_AA64FPFR0, F8FMA, 1); /* FEAT_FP8FMA */\n t = FIELD_DP64(t, ID_AA64FPFR0, F8CVT, 1); /* FEAT_FP8 */\ndiff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst\nindex bee4e36dc6..875716d18f 100644\n--- a/docs/system/arm/emulation.rst\n+++ b/docs/system/arm/emulation.rst\n@@ -75,6 +75,7 @@ the following architecture extensions:\n - FEAT_FP (Floating Point extensions)\n - FEAT_FP16 (Half-precision floating-point data processing)\n - FEAT_FP8 (FP8 convert instructions)\n+- FEAT_FP8DOT2 (FP8 2-way dot product to half-precision instructions)\n - FEAT_FP8DOT4 (FP8 4-way dot product to single-precision instructions)\n - FEAT_FP8FMA (FP8 multiply-accumulate to half-precision and single-precision instructions)\n - FEAT_FPAC (Faulting on AUT* instructions)\n@@ -161,6 +162,7 @@ the following architecture extensions:\n - FEAT_SME_F64F64 (Double-precision floating-point outer product instructions)\n - FEAT_SME_I16I64 (16-bit to 64-bit integer widening outer product instructions)\n - FEAT_SME_LUTv2 (Lookup table instructions with 4-bit indices and 8-bit elements)\n+- FEAT_SSVE_FP8DOT2 (SVE2 FP8 2-way dot product to half-precision instructions in Streaming SVE mode)\n - FEAT_SSVE_FP8DOT4 (SVE2 FP8 4-way dot product to single-precision instructions in Streaming SVE mode)\n - FEAT_SSVE_FP8FMA (SVE2 FP8 multiply-accumulate to half-precision and single-precision instructions in Streaming SVE mode)\n - FEAT_SVE (Scalable Vector Extension)\n", "prefixes": [ "v4", "54/60" ] }