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Mon, 20 Apr 2020 22:58:30 -0700 Received: from [127.0.0.1] (helo=localhost) by xsj-pvapsmtp01 with smtp (Exim 4.63) (envelope-from ) id 1jQlwQ-0000GU-Tv; Mon, 20 Apr 2020 22:59:30 -0700 Received: from xsj-pvapsmtp01 (xsj-mail.xilinx.com [149.199.38.66]) by xsj-smtp-dlp2.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id 03L5xKXw025135; Mon, 20 Apr 2020 22:59:20 -0700 Received: from [172.30.17.109] by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1jQlwF-0000Df-Ux; Mon, 20 Apr 2020 22:59:20 -0700 Subject: Re: [PATCH v3 3/5] firmware: xilinx: Add RPU configuration APIs To: Ben Levinsky , ohad@wizery.com, bjorn.andersson@linaro.org, michal.simek@xilinx.com, jollys@xilinx.com, rajan.vaja@xilinx.com, robh+dt@kernel.org, mark.rutland@arm.com References: <1587421629-914-1-git-send-email-ben.levinsky@xilinx.com> <1587421629-914-4-git-send-email-ben.levinsky@xilinx.com> From: Michal Simek Message-ID: <18cf27ff-5175-bff1-d1d8-5ef077d4202a@xilinx.com> Date: Tue, 21 Apr 2020 07:59:16 +0200 User-Agent: Mozilla/5.0 (X11; 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR02MB6726 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200420_225933_749756_22DC52D6 X-CRM114-Status: GOOD ( 21.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 21. 04. 20 0:27, Ben Levinsky wrote: > This patch adds APIs to provide access and a configuration interface > to the current power state of a sub-system on Zynqmp sub-system. > > Signed-off-by: Ben Levinsky > --- > changes since v2: > - add xilinx-related platform mgmt fn's instead of wrapping around > function pointer in xilinx eemi ops struct > --- > drivers/firmware/xilinx/zynqmp.c | 101 +++++++++++++++++++++++++++++++++++ > include/linux/firmware/xlnx-zynqmp.h | 30 +++++++++++ > 2 files changed, 131 insertions(+) > > diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c > index b0d140f..e0a906e 100644 > --- a/drivers/firmware/xilinx/zynqmp.c > +++ b/drivers/firmware/xilinx/zynqmp.c > @@ -845,6 +845,63 @@ int zynqmp_pm_release_node(const u32 node) > EXPORT_SYMBOL_GPL(zynqmp_pm_release_node); > > /** > + * zynqmp_pm_get_rpu_mode() - Get RPU mode > + * @node_id: Node ID of the device > + * @arg1: Argument 1 to requested IOCTL call > + * @arg2: Argument 2 to requested IOCTL call > + * @out: Returned output value > + * > + * Return: Returns RPU mode ditto. > + */ > +int zynqmp_pm_get_rpu_mode(u32 node_id, > + u32 arg1, u32 arg2, u32 *out) > +{ > + return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, > + IOCTL_GET_RPU_OPER_MODE, 0, 0, out); > +} > +EXPORT_SYMBOL_GPL(zynqmp_pm_get_rpu_mode); > + > +/** > + * zynqmp_pm_set_rpu_mode() - Set RPU mode > + * @node_id: Node ID of the device > + * @ioctl_id: ID of the requested IOCTL > + * @arg2: Argument 2 to requested IOCTL call > + * @out: Returned output value > + * > + * This function is used to set RPU mode. > + * > + * Return: Returns status, either success or error+reason > + */ > +int zynqmp_pm_set_rpu_mode(u32 node_id, > + u32 arg1, u32 arg2, u32 *out) > +{ > + return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, > + IOCTL_SET_RPU_OPER_MODE, 0, 0, out); > +} > +EXPORT_SYMBOL_GPL(zynqmp_pm_set_rpu_mode); > + > +/** > + * zynqmp_pm_tcm_comb_config - configure TCM > + * @node_id: Node ID of the device > + * @arg1: Argument 1 to requested IOCTL call > + * @arg2: Argument 2 to requested IOCTL call > + * @out: Returned output value > + * > + * This function is used to set RPU mode. > + * > + * Return: Returns status, either success or error+reason > + */ > +int zynqmp_pm_set_tcm_config(u32 node_id, > + u32 arg1, u32 arg2, u32 *out) > +{ > + return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, > + IOCTL_TCM_COMB_CONFIG, 0, 0, out); > + > +} > +EXPORT_SYMBOL_GPL(zynqmp_pm_set_tcm_config); > + > + double space here. > +/** > * zynqmp_pm_force_powerdown - PM call to request for another PU or subsystem to > * be powered down forcefully > * @target: Node ID of the targeted PU or subsystem > @@ -880,6 +937,50 @@ int zynqmp_pm_request_wakeup(const u32 node, > EXPORT_SYMBOL_GPL(zynqmp_pm_request_wakeup); > > /** > + * zynqmp_pm_get_node_status - PM call to request a node's current power state > + * @node: ID of the component or sub-system in question > + * @status: Current operating state of the requested node > + * @requirements: Current requirements asserted on the node, > + * used for slave nodes only. > + * @usage: Usage information, used for slave nodes only: > + * PM_USAGE_NO_MASTER - No master is currently using > + * the node > + * PM_USAGE_CURRENT_MASTER - Only requesting master is > + * currently using the node > + * PM_USAGE_OTHER_MASTER - Only other masters are > + * currently using the node > + * PM_USAGE_BOTH_MASTERS - Both the current and at least > + * one other master is currently > + * using the node > + * > + * Return: Returns status, either success or error+reason > + */ > +int zynqmp_pm_get_node_status(const u32 node, > + u32 *status, u32 *requirements, > + u32 *usage) > + > +{ > + u32 ret_payload[PAYLOAD_ARG_CNT]; > + int ret; > + > + if (!status) > + return -EINVAL; > + > + ret = zynqmp_pm_invoke_fn(PM_GET_NODE_STATUS, node, 0, 0, > + 0, ret_payload); > + if (ret_payload[0] == XST_PM_SUCCESS) { > + *status = ret_payload[1]; > + if (requirements) > + *requirements = ret_payload[2]; > + if (usage) > + *usage = ret_payload[3]; > + } > + > + return ret; indentation. M _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel