Say y here to support the Qualcomm Peripheral Image Loader for the
Hexagon V5 based WCSS remote processors.
+config QCOM_Q6V5_IPA_NOTIFY
+ tristate
+ depends on QCOM_IPA
+ depends on QCOM_Q6V5_MSS
+ default QCOM_IPA
+
config QCOM_SYSMON
tristate "Qualcomm sysmon driver"
depends on RPMSG
obj-$(CONFIG_QCOM_Q6V5_MSS) += qcom_q6v5_mss.o
obj-$(CONFIG_QCOM_Q6V5_PAS) += qcom_q6v5_pas.o
obj-$(CONFIG_QCOM_Q6V5_WCSS) += qcom_q6v5_wcss.o
+obj-$(CONFIG_QCOM_Q6V5_IPA_NOTIFY) += qcom_q6v5_ipa_notify.o
obj-$(CONFIG_QCOM_SYSMON) += qcom_sysmon.o
obj-$(CONFIG_QCOM_WCNSS_PIL) += qcom_wcnss_pil.o
qcom_wcnss_pil-y += qcom_wcnss.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Qualcomm IPA notification subdev support
+ *
+ * Copyright (C) 2019 Linaro Ltd.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/remoteproc.h>
+#include <linux/remoteproc/qcom_q6v5_ipa_notify.h>
+
+static void
+ipa_notify_common(struct rproc_subdev *subdev, enum qcom_rproc_event event)
+{
+ struct qcom_rproc_ipa_notify *ipa_notify;
+ qcom_ipa_notify_t notify;
+
+ ipa_notify = container_of(subdev, struct qcom_rproc_ipa_notify, subdev);
+ notify = ipa_notify->notify;
+ if (notify)
+ notify(ipa_notify->data, event);
+}
+
+static int ipa_notify_prepare(struct rproc_subdev *subdev)
+{
+ ipa_notify_common(subdev, MODEM_STARTING);
+
+ return 0;
+}
+
+static int ipa_notify_start(struct rproc_subdev *subdev)
+{
+ ipa_notify_common(subdev, MODEM_RUNNING);
+
+ return 0;
+}
+
+static void ipa_notify_stop(struct rproc_subdev *subdev, bool crashed)
+
+{
+ ipa_notify_common(subdev, crashed ? MODEM_CRASHED : MODEM_STOPPING);
+}
+
+static void ipa_notify_unprepare(struct rproc_subdev *subdev)
+{
+ ipa_notify_common(subdev, MODEM_OFFLINE);
+}
+
+static void ipa_notify_removing(struct rproc_subdev *subdev)
+{
+ ipa_notify_common(subdev, MODEM_REMOVING);
+}
+
+/* Register the IPA notification subdevice with the Q6V5 MSS remoteproc */
+void qcom_add_ipa_notify_subdev(struct rproc *rproc,
+ struct qcom_rproc_ipa_notify *ipa_notify)
+{
+ ipa_notify->notify = NULL;
+ ipa_notify->data = NULL;
+ ipa_notify->subdev.prepare = ipa_notify_prepare;
+ ipa_notify->subdev.start = ipa_notify_start;
+ ipa_notify->subdev.stop = ipa_notify_stop;
+ ipa_notify->subdev.unprepare = ipa_notify_unprepare;
+
+ rproc_add_subdev(rproc, &ipa_notify->subdev);
+}
+EXPORT_SYMBOL_GPL(qcom_add_ipa_notify_subdev);
+
+/* Remove the IPA notification subdevice */
+void qcom_remove_ipa_notify_subdev(struct rproc *rproc,
+ struct qcom_rproc_ipa_notify *ipa_notify)
+{
+ struct rproc_subdev *subdev = &ipa_notify->subdev;
+
+ ipa_notify_removing(subdev);
+
+ rproc_remove_subdev(rproc, subdev);
+ ipa_notify->notify = NULL; /* Make it obvious */
+}
+EXPORT_SYMBOL_GPL(qcom_remove_ipa_notify_subdev);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Qualcomm IPA notification remoteproc subdev");
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/remoteproc.h>
+#include "linux/remoteproc/qcom_q6v5_ipa_notify.h"
#include <linux/reset.h>
#include <linux/soc/qcom/mdt_loader.h>
#include <linux/iopoll.h>
struct qcom_rproc_glink glink_subdev;
struct qcom_rproc_subdev smd_subdev;
struct qcom_rproc_ssr ssr_subdev;
+ struct qcom_rproc_ipa_notify ipa_notify_subdev;
struct qcom_sysmon *sysmon;
bool need_mem_protection;
bool has_alt_reset;
return 0;
}
+#if IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY)
+
+/* Register IPA notification function */
+int qcom_register_ipa_notify(struct rproc *rproc, qcom_ipa_notify_t notify,
+ void *data)
+{
+ struct qcom_rproc_ipa_notify *ipa_notify;
+ struct q6v5 *qproc = rproc->priv;
+
+ if (!notify)
+ return -EINVAL;
+
+ ipa_notify = &qproc->ipa_notify_subdev;
+ if (ipa_notify->notify)
+ return -EBUSY;
+
+ ipa_notify->notify = notify;
+ ipa_notify->data = data;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_register_ipa_notify);
+
+/* Deregister IPA notification function */
+void qcom_deregister_ipa_notify(struct rproc *rproc)
+{
+ struct q6v5 *qproc = rproc->priv;
+
+ qproc->ipa_notify_subdev.notify = NULL;
+}
+EXPORT_SYMBOL_GPL(qcom_deregister_ipa_notify);
+#endif /* !IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY) */
+
static int q6v5_probe(struct platform_device *pdev)
{
const struct rproc_hexagon_res *desc;
qcom_add_glink_subdev(rproc, &qproc->glink_subdev);
qcom_add_smd_subdev(rproc, &qproc->smd_subdev);
qcom_add_ssr_subdev(rproc, &qproc->ssr_subdev, "mpss");
+ qcom_add_ipa_notify_subdev(rproc, &qproc->ipa_notify_subdev);
qproc->sysmon = qcom_add_sysmon_subdev(rproc, "modem", 0x12);
if (IS_ERR(qproc->sysmon)) {
ret = PTR_ERR(qproc->sysmon);
return 0;
detach_proxy_pds:
+ qcom_remove_ipa_notify_subdev(qproc->rproc, &qproc->ipa_notify_subdev);
q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
detach_active_pds:
q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
rproc_del(qproc->rproc);
qcom_remove_sysmon_subdev(qproc->sysmon);
+ qcom_remove_ipa_notify_subdev(qproc->rproc, &qproc->ipa_notify_subdev);
qcom_remove_glink_subdev(qproc->rproc, &qproc->glink_subdev);
qcom_remove_smd_subdev(qproc->rproc, &qproc->smd_subdev);
qcom_remove_ssr_subdev(qproc->rproc, &qproc->ssr_subdev);
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Copyright (C) 2019 Linaro Ltd. */
+
+#ifndef __QCOM_Q6V5_IPA_NOTIFY_H__
+#define __QCOM_Q6V5_IPA_NOTIFY_H__
+
+#if IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY)
+
+#include <linux/remoteproc.h>
+
+enum qcom_rproc_event {
+ MODEM_STARTING = 0, /* Modem is about to be started */
+ MODEM_RUNNING = 1, /* Startup complete; modem is operational */
+ MODEM_STOPPING = 2, /* Modem is about to shut down */
+ MODEM_CRASHED = 3, /* Modem has crashed (implies stopping) */
+ MODEM_OFFLINE = 4, /* Modem is now offline */
+ MODEM_REMOVING = 5, /* Modem is about to be removed */
+};
+
+typedef void (*qcom_ipa_notify_t)(void *data, enum qcom_rproc_event event);
+
+struct qcom_rproc_ipa_notify {
+ struct rproc_subdev subdev;
+
+ qcom_ipa_notify_t notify;
+ void *data;
+};
+
+/**
+ * qcom_add_ipa_notify_subdev() - Register IPA notification subdevice
+ * @rproc: rproc handle
+ * @ipa_notify: IPA notification subdevice handle
+ *
+ * Register the @ipa_notify subdevice with the @rproc so modem events
+ * can be sent to IPA when they occur.
+ *
+ * This is defined in "qcom_q6v5_ipa_notify.c".
+ */
+void qcom_add_ipa_notify_subdev(struct rproc *rproc,
+ struct qcom_rproc_ipa_notify *ipa_notify);
+
+/**
+ * qcom_remove_ipa_notify_subdev() - Remove IPA SSR subdevice
+ * @rproc: rproc handle
+ * @ipa_notify: IPA notification subdevice handle
+ *
+ * This is defined in "qcom_q6v5_ipa_notify.c".
+ */
+void qcom_remove_ipa_notify_subdev(struct rproc *rproc,
+ struct qcom_rproc_ipa_notify *ipa_notify);
+
+/**
+ * qcom_register_ipa_notify() - Register IPA notification function
+ * @rproc: Remote processor handle
+ * @notify: Non-null IPA notification callback function pointer
+ * @data: Data supplied to IPA notification callback function
+ *
+ * @Return: 0 if successful, or a negative error code otherwise
+ *
+ * This is defined in "qcom_q6v5_mss.c".
+ */
+int qcom_register_ipa_notify(struct rproc *rproc, qcom_ipa_notify_t notify,
+ void *data);
+/**
+ * qcom_deregister_ipa_notify() - Deregister IPA notification function
+ * @rproc: Remote processor handle
+ *
+ * This is defined in "qcom_q6v5_mss.c".
+ */
+void qcom_deregister_ipa_notify(struct rproc *rproc);
+
+#else /* !IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY) */
+
+struct qcom_rproc_ipa_notify { /* empty */ };
+
+#define qcom_add_ipa_notify_subdev(rproc, ipa_notify) /* no-op */
+#define qcom_remove_ipa_notify_subdev(rproc, ipa_notify) /* no-op */
+
+#endif /* !IS_ENABLED(CONFIG_QCOM_Q6V5_IPA_NOTIFY) */
+
+#endif /* !__QCOM_Q6V5_IPA_NOTIFY_H__ */
projects / linux-2.6-microblaze.git / commitdiff