From: Tanmay Shah <tanmay.shah@xilinx.com> To: <openamp-system-reference@lists.openampproject.org>, <bjorn.andersson@linaro.org>, <mathieu.poirier@linaro.org>, <robh+dt@kernel.org>, <krzk+dt@kernel.org>, <michal.simek@xilinx.com>, <ben.levinsky@xilinx.com>, <tanmay.shah@xilinx.com> Cc: <linux-remoteproc@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org> Subject: [PATCH v6 5/6] firmware: xilinx: Add RPU configuration APIs Date: Tue, 31 May 2022 16:43:09 -0700 [thread overview] Message-ID: <20220531234308.3317795-6-tanmay.shah@xilinx.com> (raw) In-Reply-To: <20220531234308.3317795-1-tanmay.shah@xilinx.com> From: Ben Levinsky <ben.levinsky@xilinx.com> This patch adds APIs to access to configure RPU and its processor-specific memory. That is query the run-time mode of RPU as either split or lockstep as well as API to set this mode. In addition add APIs to access configuration of the RPUs' tightly coupled memory (TCM). Signed-off-by: Ben Levinsky <ben.levinsky@xilinx.com> Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com> --- Changes in v6: - None Changes in v5: - None Changes in v4: - None Changes in v3: - Add missing function argument documentation drivers/firmware/xilinx/zynqmp.c | 62 ++++++++++++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 18 ++++++++ 2 files changed, 80 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index fabdbac868f5..c66c9b48135a 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -1067,6 +1067,68 @@ 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 + * @rpu_mode: return by reference value + * either split or lockstep + * + * Return: return 0 on success or error+reason. + * if success, then rpu_mode will be set + * to current rpu mode. + */ +int zynqmp_pm_get_rpu_mode(u32 node_id, enum rpu_oper_mode *rpu_mode) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + ret = zynqmp_pm_invoke_fn(PM_IOCTL, node_id, + IOCTL_GET_RPU_OPER_MODE, 0, 0, ret_payload); + + /* only set rpu_mode if no error */ + if (ret == XST_PM_SUCCESS) + *rpu_mode = ret_payload[0]; + + return ret; +} +EXPORT_SYMBOL_GPL(zynqmp_pm_get_rpu_mode); + +/** + * zynqmp_pm_set_rpu_mode() - Set RPU mode + * @node_id: Node ID of the device + * @rpu_mode: Argument 1 to requested IOCTL call. either split or lockstep + * + * This function is used to set RPU mode to split or + * lockstep + * + * Return: Returns status, either success or error+reason + */ +int zynqmp_pm_set_rpu_mode(u32 node_id, enum rpu_oper_mode rpu_mode) +{ + return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, + IOCTL_SET_RPU_OPER_MODE, (u32)rpu_mode, + 0, NULL); +} +EXPORT_SYMBOL_GPL(zynqmp_pm_set_rpu_mode); + +/** + * zynqmp_pm_set_tcm_config - configure TCM + * @node_id: Firmware specific TCM subsystem ID + * @tcm_mode: Argument 1 to requested IOCTL call + * either PM_RPU_TCM_COMB or PM_RPU_TCM_SPLIT + * + * This function is used to set RPU mode to split or combined + * + * Return: status: 0 for success, else failure + */ +int zynqmp_pm_set_tcm_config(u32 node_id, enum rpu_tcm_comb tcm_mode) +{ + return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, + IOCTL_TCM_COMB_CONFIG, (u32)tcm_mode, 0, + NULL); +} +EXPORT_SYMBOL_GPL(zynqmp_pm_set_tcm_config); + /** * zynqmp_pm_force_pwrdwn - PM call to request for another PU or subsystem to * be powered down forcefully diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index bce3465a70a4..ffc2cea7c604 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -490,6 +490,9 @@ int zynqmp_pm_request_wake(const u32 node, const bool set_addr, const u64 address, const enum zynqmp_pm_request_ack ack); +int zynqmp_pm_get_rpu_mode(u32 node_id, enum rpu_oper_mode *rpu_mode); +int zynqmp_pm_set_rpu_mode(u32 node_id, u32 arg1); +int zynqmp_pm_set_tcm_config(u32 node_id, u32 arg1); #else static inline int zynqmp_pm_get_api_version(u32 *version) { @@ -764,6 +767,21 @@ static inline int zynqmp_pm_request_wake(const u32 node, { return -ENODEV; } + +static inline int zynqmp_pm_get_rpu_mode(u32 node_id, enum rpu_oper_mode *rpu_mode) +{ + return -ENODEV; +} + +static inline int zynqmp_pm_set_rpu_mode(u32 node_id, u32 arg1) +{ + return -ENODEV; +} + +static inline int zynqmp_pm_set_tcm_config(u32 node_id, u32 arg1) +{ + return -ENODEV; +} #endif #endif /* __FIRMWARE_ZYNQMP_H__ */ -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Tanmay Shah <tanmay.shah@xilinx.com> To: <openamp-system-reference@lists.openampproject.org>, <bjorn.andersson@linaro.org>, <mathieu.poirier@linaro.org>, <robh+dt@kernel.org>, <krzk+dt@kernel.org>, <michal.simek@xilinx.com>, <ben.levinsky@xilinx.com>, <tanmay.shah@xilinx.com> Cc: <linux-remoteproc@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org> Subject: [PATCH v6 5/6] firmware: xilinx: Add RPU configuration APIs Date: Tue, 31 May 2022 16:43:09 -0700 [thread overview] Message-ID: <20220531234308.3317795-6-tanmay.shah@xilinx.com> (raw) In-Reply-To: <20220531234308.3317795-1-tanmay.shah@xilinx.com> From: Ben Levinsky <ben.levinsky@xilinx.com> This patch adds APIs to access to configure RPU and its processor-specific memory. That is query the run-time mode of RPU as either split or lockstep as well as API to set this mode. In addition add APIs to access configuration of the RPUs' tightly coupled memory (TCM). Signed-off-by: Ben Levinsky <ben.levinsky@xilinx.com> Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com> --- Changes in v6: - None Changes in v5: - None Changes in v4: - None Changes in v3: - Add missing function argument documentation drivers/firmware/xilinx/zynqmp.c | 62 ++++++++++++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 18 ++++++++ 2 files changed, 80 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index fabdbac868f5..c66c9b48135a 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -1067,6 +1067,68 @@ 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 + * @rpu_mode: return by reference value + * either split or lockstep + * + * Return: return 0 on success or error+reason. + * if success, then rpu_mode will be set + * to current rpu mode. + */ +int zynqmp_pm_get_rpu_mode(u32 node_id, enum rpu_oper_mode *rpu_mode) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + ret = zynqmp_pm_invoke_fn(PM_IOCTL, node_id, + IOCTL_GET_RPU_OPER_MODE, 0, 0, ret_payload); + + /* only set rpu_mode if no error */ + if (ret == XST_PM_SUCCESS) + *rpu_mode = ret_payload[0]; + + return ret; +} +EXPORT_SYMBOL_GPL(zynqmp_pm_get_rpu_mode); + +/** + * zynqmp_pm_set_rpu_mode() - Set RPU mode + * @node_id: Node ID of the device + * @rpu_mode: Argument 1 to requested IOCTL call. either split or lockstep + * + * This function is used to set RPU mode to split or + * lockstep + * + * Return: Returns status, either success or error+reason + */ +int zynqmp_pm_set_rpu_mode(u32 node_id, enum rpu_oper_mode rpu_mode) +{ + return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, + IOCTL_SET_RPU_OPER_MODE, (u32)rpu_mode, + 0, NULL); +} +EXPORT_SYMBOL_GPL(zynqmp_pm_set_rpu_mode); + +/** + * zynqmp_pm_set_tcm_config - configure TCM + * @node_id: Firmware specific TCM subsystem ID + * @tcm_mode: Argument 1 to requested IOCTL call + * either PM_RPU_TCM_COMB or PM_RPU_TCM_SPLIT + * + * This function is used to set RPU mode to split or combined + * + * Return: status: 0 for success, else failure + */ +int zynqmp_pm_set_tcm_config(u32 node_id, enum rpu_tcm_comb tcm_mode) +{ + return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, + IOCTL_TCM_COMB_CONFIG, (u32)tcm_mode, 0, + NULL); +} +EXPORT_SYMBOL_GPL(zynqmp_pm_set_tcm_config); + /** * zynqmp_pm_force_pwrdwn - PM call to request for another PU or subsystem to * be powered down forcefully diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index bce3465a70a4..ffc2cea7c604 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -490,6 +490,9 @@ int zynqmp_pm_request_wake(const u32 node, const bool set_addr, const u64 address, const enum zynqmp_pm_request_ack ack); +int zynqmp_pm_get_rpu_mode(u32 node_id, enum rpu_oper_mode *rpu_mode); +int zynqmp_pm_set_rpu_mode(u32 node_id, u32 arg1); +int zynqmp_pm_set_tcm_config(u32 node_id, u32 arg1); #else static inline int zynqmp_pm_get_api_version(u32 *version) { @@ -764,6 +767,21 @@ static inline int zynqmp_pm_request_wake(const u32 node, { return -ENODEV; } + +static inline int zynqmp_pm_get_rpu_mode(u32 node_id, enum rpu_oper_mode *rpu_mode) +{ + return -ENODEV; +} + +static inline int zynqmp_pm_set_rpu_mode(u32 node_id, u32 arg1) +{ + return -ENODEV; +} + +static inline int zynqmp_pm_set_tcm_config(u32 node_id, u32 arg1) +{ + return -ENODEV; +} #endif #endif /* __FIRMWARE_ZYNQMP_H__ */ -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-05-31 23:44 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-31 23:43 [PATCH v6 0/6] Add Xilinx RPU subsystem support Tanmay Shah 2022-05-31 23:43 ` Tanmay Shah 2022-05-31 23:43 ` [PATCH v6 1/6] dt-bindings: remoteproc: Add Xilinx RPU subsystem bindings Tanmay Shah 2022-05-31 23:43 ` Tanmay Shah 2022-06-01 12:22 ` Krzysztof Kozlowski 2022-06-01 12:22 ` Krzysztof Kozlowski 2022-06-01 16:06 ` tanmay.shah 2022-06-01 16:06 ` tanmay.shah 2022-06-01 18:42 ` Rob Herring 2022-06-01 18:42 ` Rob Herring 2022-06-01 19:05 ` Tanmay Shah 2022-06-01 19:05 ` Tanmay Shah 2022-06-02 15:14 ` Rob Herring 2022-06-02 15:14 ` Rob Herring 2022-06-02 16:08 ` Tanmay Shah 2022-06-02 16:08 ` Tanmay Shah 2022-05-31 23:43 ` [PATCH v6 2/6] arm64: dts: xilinx: zynqmp: Add RPU subsystem device node Tanmay Shah 2022-05-31 23:43 ` Tanmay Shah 2022-05-31 23:43 ` [PATCH v6 3/6] firmware: xilinx: Add ZynqMP firmware ioctl enums for RPU configuration Tanmay Shah 2022-05-31 23:43 ` Tanmay Shah 2022-05-31 23:43 ` [PATCH v6 4/6] firmware: xilinx: Add shutdown/wakeup APIs Tanmay Shah 2022-05-31 23:43 ` Tanmay Shah 2022-05-31 23:43 ` Tanmay Shah [this message] 2022-05-31 23:43 ` [PATCH v6 5/6] firmware: xilinx: Add RPU configuration APIs Tanmay Shah 2022-05-31 23:43 ` [PATCH v6 6/6] drivers: remoteproc: Add Xilinx r5 remoteproc driver Tanmay Shah 2022-05-31 23:43 ` Tanmay Shah
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