From nobody Fri Dec 19 13:49:17 2025 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 51AB7226172 for ; Mon, 17 Feb 2025 15:39:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739806780; cv=none; b=o/MARsw50Fsj2mfu/A4SsjgUzdg+8yccLgFNbhx259l1nEclbWfbxYRWXGatRyoB9cqb63G+z5pqYW/rdoix90Id+cb7sHl5EqLlUxIuxDAfmLnuGiuxFVa2WCBre/Ib5QXhP8sEWLsYHRssk7TOP4OnUbMBHtK/sFnj01zoN98= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739806780; c=relaxed/simple; bh=U2Pa8cgrduaKloppfthrgCFfrEI2zJBMeuwy12YpDv4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To; b=t3LSGx/EvXs8XepKTuaSo+NIlWH/FbNEzU7Q0t0oQ+GxL3Sn/SoRnpwrAiExfH2uDqdBk4taY1OKmSxGHzjLBJ+5ITLIz/XKwDsbWHSP32A4HEGFgCEHKIUpUPs0TuzKu4UbKYaOCTIGRXMKsVS8yT51z74WF1teqzTVwBHJeao= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4793D176C; Mon, 17 Feb 2025 07:39:58 -0800 (PST) Received: from e133711.arm.com (e133711.arm.com [10.1.196.55]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 63A1C3F6A8; Mon, 17 Feb 2025 07:39:38 -0800 (PST) From: Sudeep Holla Date: Mon, 17 Feb 2025 15:38:51 +0000 Subject: [PATCH v3 10/19] firmware: arm_ffa: Add support for passing UUID in FFA_MSG_SEND2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250217-ffa_updates-v3-10-bd1d9de615e7@arm.com> References: <20250217-ffa_updates-v3-0-bd1d9de615e7@arm.com> In-Reply-To: <20250217-ffa_updates-v3-0-bd1d9de615e7@arm.com> To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Sudeep Holla , Viresh Kumar X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2319; i=sudeep.holla@arm.com; h=from:subject:message-id; bh=U2Pa8cgrduaKloppfthrgCFfrEI2zJBMeuwy12YpDv4=; b=owEBbQKS/ZANAwAIAQBBurwxfuKYAcsmYgBns1gua4jzwB8ulT/HsdvweBObDE1MNmOMPFzpk RyPkgFi3/OJAjMEAAEIAB0WIQS6ceUSBvMeskPdk+EAQbq8MX7imAUCZ7NYLgAKCRAAQbq8MX7i mMiPD/4vawnoANQaxp+gh1u2/cX44bGHYZ5/NH28+CSRb0xMCouFdQzW5sJqifa9lzHIgJBku8T dmmkt3fGIjpBMxHbQt1rSRmQ+7jQgaz4mIGT3Wbg9YrmJ8TfQc3hQ3pCiV/2xHXe7WOQqDSO0AY jKM99UbiLYzLjQf1JdjXOa74Z0mZ3cBySjgQYtbXXwL9aGTMQBi96JIlsEsoAGUbpX3PQL0PF+8 KVHPGeoLfYs+ZdKRKqfLBR+uTbRCl0vPhid7KhT+jrdxr2Kf1apAnKiYZ/tnkb/Eq8RWugjYXi9 IPq0usqoqRHERdyu78TcoEPWC0mTylDZnd7hP1697xKocPFQLi17YkLcjwUsUdQK5SgN6oFtUrn 7AcfATZ6i7TLu5U1KZVGis6YLETe+bYPWRPxD8q16NWgoOClx7SQ2TrZlQx2O9INr68DSzsNsOc kqA7raV8CYynrpoemGbRLefBxODP7k8ha2B5knh+PK+EsUzLbGDDddqszTW3cx9uIRNRmEjFSSB s1tFPZ5e26fPYqBL+EQ52KdoTiDvjNDPQAyQ6ulCV9Lrb161E1WZ9/O1M5qiM1GY4hmyYssgzmG ZHGWf4s87GUs4mkli4Dj4k4O0fHJlsPXc7EkOHlPiS8hhtfhPSwIXOOSpPaeSzmbIsg5sMjiNfF nKiwdWZlibXW3yw== X-Developer-Key: i=sudeep.holla@arm.com; a=openpgp; fpr=7360A21742ADF5A11767C1C139CFD4755FE2D5B4 FF-A v1.2 introduces UUID field in partition message header used in FFA_MSG_SEND2 to enable partitions/endpoints exposing multiple UUIDs. Add the support for passing UUID in FFA_MSG_SEND2. Tested-by: Viresh Kumar Signed-off-by: Sudeep Holla --- drivers/firmware/arm_ffa/driver.c | 7 ++++--- include/linux/arm_ffa.h | 1 + 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/d= river.c index 15305920ca9f2bcc72ac7453080f5c10430a3e26..545b1772df0095787b20332a7d5= 189c71bd5cacd 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -484,9 +484,9 @@ static int ffa_msg_send_direct_req(u16 src_id, u16 dst_= id, bool mode_32bit, return -EINVAL; } =20 -static int ffa_msg_send2(u16 src_id, u16 dst_id, void *buf, size_t sz) +static int ffa_msg_send2(struct ffa_device *dev, u16 src_id, void *buf, si= ze_t sz) { - u32 src_dst_ids =3D PACK_TARGET_INFO(src_id, dst_id); + u32 src_dst_ids =3D PACK_TARGET_INFO(src_id, dev->vm_id); struct ffa_indirect_msg_hdr *msg; ffa_value_t ret; int retval =3D 0; @@ -502,6 +502,7 @@ static int ffa_msg_send2(u16 src_id, u16 dst_id, void *= buf, size_t sz) msg->offset =3D sizeof(*msg); msg->send_recv_id =3D src_dst_ids; msg->size =3D sz; + uuid_copy(&msg->uuid, &dev->uuid); memcpy((u8 *)msg + msg->offset, buf, sz); =20 /* flags =3D 0, sender VMID =3D 0 works for both physical/virtual NS */ @@ -1054,7 +1055,7 @@ static int ffa_sync_send_receive(struct ffa_device *d= ev, =20 static int ffa_indirect_msg_send(struct ffa_device *dev, void *buf, size_t= sz) { - return ffa_msg_send2(drv_info->vm_id, dev->vm_id, buf, sz); + return ffa_msg_send2(dev, drv_info->vm_id, buf, sz); } =20 static int ffa_sync_send_receive2(struct ffa_device *dev, diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h index 761ea8fe3bb6080c893a5eb365358b62d6a4f3ff..bd78deeff284e2f46d42cfc7af2= 18f4a0f3d1478 100644 --- a/include/linux/arm_ffa.h +++ b/include/linux/arm_ffa.h @@ -282,6 +282,7 @@ struct ffa_indirect_msg_hdr { u32 offset; u32 send_recv_id; u32 size; + uuid_t uuid; }; =20 /* For use with FFA_MSG_SEND_DIRECT_{REQ,RESP}2 which pass data via regist= ers */ --=20 2.34.1