From patchwork Fri Jan 12 10:25:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Weili Qian X-Patchwork-Id: 762239 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3360B42057; Fri, 12 Jan 2024 10:26:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.17]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4TBHj30Mfqz29dNY; Fri, 12 Jan 2024 18:24:55 +0800 (CST) Received: from kwepemm600009.china.huawei.com (unknown [7.193.23.164]) by mail.maildlp.com (Postfix) with ESMTPS id BB9B41A0172; Fri, 12 Jan 2024 18:26:28 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 12 Jan 2024 18:26:28 +0800 From: Weili Qian To: CC: , , , Weili Qian Subject: [PATCH 1/2] crypto: hisilicon/qm - support get device state Date: Fri, 12 Jan 2024 18:25:45 +0800 Message-ID: <20240112102546.2213-2-qianweili@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20240112102546.2213-1-qianweili@huawei.com> References: <20240112102546.2213-1-qianweili@huawei.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm600009.china.huawei.com (7.193.23.164) Support get device current state. The value 0 indicates that the device is busy, and the value 1 indicates that the device is idle. When the device is in suspended, 1 is returned. Signed-off-by: Weili Qian --- Documentation/ABI/testing/debugfs-hisi-hpre | 7 +++++ Documentation/ABI/testing/debugfs-hisi-sec | 7 +++++ Documentation/ABI/testing/debugfs-hisi-zip | 7 +++++ drivers/crypto/hisilicon/debugfs.c | 29 +++++++++++++++++++++ 4 files changed, 50 insertions(+) diff --git a/Documentation/ABI/testing/debugfs-hisi-hpre b/Documentation/ABI/testing/debugfs-hisi-hpre index 8e8de49c5cc6..6ed9258605c7 100644 --- a/Documentation/ABI/testing/debugfs-hisi-hpre +++ b/Documentation/ABI/testing/debugfs-hisi-hpre @@ -111,6 +111,13 @@ Description: QM debug registers(regs) read hardware register value. This node is used to show the change of the qm register values. This node can be help users to check the change of register values. +What: /sys/kernel/debug/hisi_hpre//qm/qm_state +Date: Jan 2024 +Contact: linux-crypto@vger.kernel.org +Description: Dump the state of the device. + 0: busy, 1: idle. + Only available for PF, and take no other effect on HPRE. + What: /sys/kernel/debug/hisi_hpre//hpre_dfx/diff_regs Date: Mar 2022 Contact: linux-crypto@vger.kernel.org diff --git a/Documentation/ABI/testing/debugfs-hisi-sec b/Documentation/ABI/testing/debugfs-hisi-sec index deeefe2c735e..403f5de96318 100644 --- a/Documentation/ABI/testing/debugfs-hisi-sec +++ b/Documentation/ABI/testing/debugfs-hisi-sec @@ -91,6 +91,13 @@ Description: QM debug registers(regs) read hardware register value. This node is used to show the change of the qm register values. This node can be help users to check the change of register values. +What: /sys/kernel/debug/hisi_sec2//qm/qm_state +Date: Jan 2024 +Contact: linux-crypto@vger.kernel.org +Description: Dump the state of the device. + 0: busy, 1: idle. + Only available for PF, and take no other effect on SEC. + What: /sys/kernel/debug/hisi_sec2//sec_dfx/diff_regs Date: Mar 2022 Contact: linux-crypto@vger.kernel.org diff --git a/Documentation/ABI/testing/debugfs-hisi-zip b/Documentation/ABI/testing/debugfs-hisi-zip index 593714afaed2..2394e6a3cfe2 100644 --- a/Documentation/ABI/testing/debugfs-hisi-zip +++ b/Documentation/ABI/testing/debugfs-hisi-zip @@ -104,6 +104,13 @@ Description: QM debug registers(regs) read hardware register value. This node is used to show the change of the qm registers value. This node can be help users to check the change of register values. +What: /sys/kernel/debug/hisi_zip//qm/qm_state +Date: Jan 2024 +Contact: linux-crypto@vger.kernel.org +Description: Dump the state of the device. + 0: busy, 1: idle. + Only available for PF, and take no other effect on ZIP. + What: /sys/kernel/debug/hisi_zip//zip_dfx/diff_regs Date: Mar 2022 Contact: linux-crypto@vger.kernel.org diff --git a/drivers/crypto/hisilicon/debugfs.c b/drivers/crypto/hisilicon/debugfs.c index 80ed4b2d209c..615c8e18d8b0 100644 --- a/drivers/crypto/hisilicon/debugfs.c +++ b/drivers/crypto/hisilicon/debugfs.c @@ -24,6 +24,8 @@ #define QM_DFX_QN_SHIFT 16 #define QM_DFX_CNT_CLR_CE 0x100118 #define QM_DBG_WRITE_LEN 1024 +#define QM_IN_IDLE_ST_REG 0x1040e4 +#define QM_IN_IDLE_STATE 0x1 static const char * const qm_debug_file_name[] = { [CURRENT_QM] = "current_qm", @@ -1001,6 +1003,30 @@ static int qm_diff_regs_show(struct seq_file *s, void *unused) } DEFINE_SHOW_ATTRIBUTE(qm_diff_regs); +static int qm_state_show(struct seq_file *s, void *unused) +{ + struct hisi_qm *qm = s->private; + u32 val; + int ret; + + /* If device is in suspended, directly return the idle state. */ + ret = hisi_qm_get_dfx_access(qm); + if (!ret) { + val = readl(qm->io_base + QM_IN_IDLE_ST_REG); + hisi_qm_put_dfx_access(qm); + } else if (ret == -EAGAIN) { + val = QM_IN_IDLE_STATE; + } else { + return ret; + } + + seq_printf(s, "%u\n", val); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(qm_state); + static ssize_t qm_status_read(struct file *filp, char __user *buffer, size_t count, loff_t *pos) { @@ -1072,6 +1098,9 @@ void hisi_qm_debug_init(struct hisi_qm *qm) /* only show this in PF */ if (qm->fun_type == QM_HW_PF) { + debugfs_create_file("qm_state", 0444, qm->debug.qm_d, + qm, &qm_state_fops); + qm_create_debugfs_file(qm, qm->debug.debug_root, CURRENT_QM); for (i = CURRENT_Q; i < DEBUG_FILE_NUM; i++) qm_create_debugfs_file(qm, qm->debug.qm_d, i);