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From: Alex Elder <elder@linaro.org>
To: bjorn.andersson@linaro.org, ohad@wizery.com
Cc: agross@kernel.org, linux-remoteproc@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] remoteproc: kill IPA notify code
Date: Fri, 24 Jul 2020 13:11:42 -0500
Message-ID: <20200724181142.13581-3-elder@linaro.org> (raw)
In-Reply-To: <20200724181142.13581-1-elder@linaro.org>

The IPA code now uses the generic remoteproc SSR notification
mechanism.  This makes the original IPA notification code unused
and unnecessary, so get rid of it.

This is effectively a revert of commit d7f5f3c89c1a ("remoteproc:
add IPA notification to q6v5 driver").

Signed-off-by: Alex Elder <elder@linaro.org>
---
 drivers/remoteproc/Kconfig                    |  4 -
 drivers/remoteproc/Makefile                   |  1 -
 drivers/remoteproc/qcom_q6v5_ipa_notify.c     | 85 -------------------
 drivers/remoteproc/qcom_q6v5_mss.c            | 38 ---------
 .../linux/remoteproc/qcom_q6v5_ipa_notify.h   | 82 ------------------
 5 files changed, 210 deletions(-)
 delete mode 100644 drivers/remoteproc/qcom_q6v5_ipa_notify.c
 delete mode 100644 include/linux/remoteproc/qcom_q6v5_ipa_notify.h

diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 3e8d5d1a2b9ee..45f1f1e728823 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -154,7 +154,6 @@ config QCOM_Q6V5_MSS
 	select QCOM_MDT_LOADER
 	select QCOM_PIL_INFO
 	select QCOM_Q6V5_COMMON
-	select QCOM_Q6V5_IPA_NOTIFY
 	select QCOM_RPROC_COMMON
 	select QCOM_SCM
 	help
@@ -196,9 +195,6 @@ config QCOM_Q6V5_WCSS
 	  Say y here to support the Qualcomm Peripheral Image Loader for the
 	  Hexagon V5 based WCSS remote processors.
 
-config QCOM_Q6V5_IPA_NOTIFY
-	tristate
-
 config QCOM_SYSMON
 	tristate "Qualcomm sysmon driver"
 	depends on RPMSG
diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index a4c1397d63673..8c056920b4006 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -24,7 +24,6 @@ obj-$(CONFIG_QCOM_Q6V5_ADSP)		+= qcom_q6v5_adsp.o
 obj-$(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
diff --git a/drivers/remoteproc/qcom_q6v5_ipa_notify.c b/drivers/remoteproc/qcom_q6v5_ipa_notify.c
deleted file mode 100644
index e1c10a128bfdb..0000000000000
--- a/drivers/remoteproc/qcom_q6v5_ipa_notify.c
+++ /dev/null
@@ -1,85 +0,0 @@
-// 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");
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 718acebae777f..eb2a0d7dea1c7 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -23,7 +23,6 @@
 #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>
@@ -199,7 +198,6 @@ struct q6v5 {
 	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;
@@ -1585,39 +1583,6 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc)
 	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;
@@ -1744,7 +1709,6 @@ static int q6v5_probe(struct platform_device *pdev)
 	qcom_add_glink_subdev(rproc, &qproc->glink_subdev, "mpss");
 	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);
@@ -1760,7 +1724,6 @@ static int q6v5_probe(struct platform_device *pdev)
 remove_sysmon_subdev:
 	qcom_remove_sysmon_subdev(qproc->sysmon);
 remove_subdevs:
-	qcom_remove_ipa_notify_subdev(qproc->rproc, &qproc->ipa_notify_subdev);
 	qcom_remove_ssr_subdev(rproc, &qproc->ssr_subdev);
 	qcom_remove_smd_subdev(rproc, &qproc->smd_subdev);
 	qcom_remove_glink_subdev(rproc, &qproc->glink_subdev);
@@ -1782,7 +1745,6 @@ static int q6v5_remove(struct platform_device *pdev)
 	rproc_del(rproc);
 
 	qcom_remove_sysmon_subdev(qproc->sysmon);
-	qcom_remove_ipa_notify_subdev(rproc, &qproc->ipa_notify_subdev);
 	qcom_remove_ssr_subdev(rproc, &qproc->ssr_subdev);
 	qcom_remove_smd_subdev(rproc, &qproc->smd_subdev);
 	qcom_remove_glink_subdev(rproc, &qproc->glink_subdev);
diff --git a/include/linux/remoteproc/qcom_q6v5_ipa_notify.h b/include/linux/remoteproc/qcom_q6v5_ipa_notify.h
deleted file mode 100644
index 0820edc0ab7df..0000000000000
--- a/include/linux/remoteproc/qcom_q6v5_ipa_notify.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* 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__ */
-- 
2.20.1


  reply index

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-24 18:11 [PATCH 0/2] remoteproc: convert IPA to use new notifications Alex Elder
2020-07-24 18:11 ` Alex Elder [this message]
2020-07-24 20:06   ` [PATCH 2/2] remoteproc: kill IPA notify code Bjorn Andersson

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