From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Rob Herring <robh@kernel.org>, Bjorn Helgaas <bhelgaas@google.com>, Kishon Vijay Abraham I <kishon@ti.com> Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Masami Hiramatsu <masami.hiramatsu@linaro.org>, Jassi Brar <jaswinder.singh@linaro.org>, Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Subject: [PATCH v2 1/3] PCI: endpoint: Add 'started' to pci_epc to set whether the controller is started Date: Mon, 25 Jan 2021 00:09:35 +0900 [thread overview] Message-ID: <1611500977-24816-2-git-send-email-hayashi.kunihiko@socionext.com> (raw) In-Reply-To: <1611500977-24816-1-git-send-email-hayashi.kunihiko@socionext.com> This adds a member 'started' as a boolean value to struct pci_epc to set whether the controller is started, and also adds a function to get the value. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> --- drivers/pci/endpoint/pci-epc-core.c | 2 ++ include/linux/pci-epc.h | 7 +++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c index cc8f9eb..2904175 100644 --- a/drivers/pci/endpoint/pci-epc-core.c +++ b/drivers/pci/endpoint/pci-epc-core.c @@ -174,6 +174,7 @@ void pci_epc_stop(struct pci_epc *epc) mutex_lock(&epc->lock); epc->ops->stop(epc); + epc->started = false; mutex_unlock(&epc->lock); } EXPORT_SYMBOL_GPL(pci_epc_stop); @@ -196,6 +197,7 @@ int pci_epc_start(struct pci_epc *epc) mutex_lock(&epc->lock); ret = epc->ops->start(epc); + epc->started = true; mutex_unlock(&epc->lock); return ret; diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index b82c9b1..5808952 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -131,6 +131,7 @@ struct pci_epc_mem { * @lock: mutex to protect pci_epc ops * @function_num_map: bitmap to manage physical function number * @notifier: used to notify EPF of any EPC events (like linkup) + * @started: true if this EPC is started */ struct pci_epc { struct device dev; @@ -145,6 +146,7 @@ struct pci_epc { struct mutex lock; unsigned long function_num_map; struct atomic_notifier_head notifier; + bool started; }; /** @@ -191,6 +193,11 @@ pci_epc_register_notifier(struct pci_epc *epc, struct notifier_block *nb) return atomic_notifier_chain_register(&epc->notifier, nb); } +static inline bool pci_epc_is_started(struct pci_epc *epc) +{ + return epc->started; +} + struct pci_epc * __devm_pci_epc_create(struct device *dev, const struct pci_epc_ops *ops, struct module *owner); -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Rob Herring <robh@kernel.org>, Bjorn Helgaas <bhelgaas@google.com>, Kishon Vijay Abraham I <kishon@ti.com> Cc: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>, Masami Hiramatsu <masami.hiramatsu@linaro.org>, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Jassi Brar <jaswinder.singh@linaro.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/3] PCI: endpoint: Add 'started' to pci_epc to set whether the controller is started Date: Mon, 25 Jan 2021 00:09:35 +0900 [thread overview] Message-ID: <1611500977-24816-2-git-send-email-hayashi.kunihiko@socionext.com> (raw) In-Reply-To: <1611500977-24816-1-git-send-email-hayashi.kunihiko@socionext.com> This adds a member 'started' as a boolean value to struct pci_epc to set whether the controller is started, and also adds a function to get the value. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> --- drivers/pci/endpoint/pci-epc-core.c | 2 ++ include/linux/pci-epc.h | 7 +++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c index cc8f9eb..2904175 100644 --- a/drivers/pci/endpoint/pci-epc-core.c +++ b/drivers/pci/endpoint/pci-epc-core.c @@ -174,6 +174,7 @@ void pci_epc_stop(struct pci_epc *epc) mutex_lock(&epc->lock); epc->ops->stop(epc); + epc->started = false; mutex_unlock(&epc->lock); } EXPORT_SYMBOL_GPL(pci_epc_stop); @@ -196,6 +197,7 @@ int pci_epc_start(struct pci_epc *epc) mutex_lock(&epc->lock); ret = epc->ops->start(epc); + epc->started = true; mutex_unlock(&epc->lock); return ret; diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index b82c9b1..5808952 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -131,6 +131,7 @@ struct pci_epc_mem { * @lock: mutex to protect pci_epc ops * @function_num_map: bitmap to manage physical function number * @notifier: used to notify EPF of any EPC events (like linkup) + * @started: true if this EPC is started */ struct pci_epc { struct device dev; @@ -145,6 +146,7 @@ struct pci_epc { struct mutex lock; unsigned long function_num_map; struct atomic_notifier_head notifier; + bool started; }; /** @@ -191,6 +193,11 @@ pci_epc_register_notifier(struct pci_epc *epc, struct notifier_block *nb) return atomic_notifier_chain_register(&epc->notifier, nb); } +static inline bool pci_epc_is_started(struct pci_epc *epc) +{ + return epc->started; +} + struct pci_epc * __devm_pci_epc_create(struct device *dev, const struct pci_epc_ops *ops, struct module *owner); -- 2.7.4 _______________________________________________ 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:[~2021-01-24 15:11 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-24 15:09 [PATCH v2 0/3] PCI: endpoint: Add endpoint restart management support Kunihiko Hayashi 2021-01-24 15:09 ` Kunihiko Hayashi 2021-01-24 15:09 ` Kunihiko Hayashi [this message] 2021-01-24 15:09 ` [PATCH v2 1/3] PCI: endpoint: Add 'started' to pci_epc to set whether the controller is started Kunihiko Hayashi 2021-01-28 14:11 ` Kishon Vijay Abraham I 2021-01-28 14:11 ` Kishon Vijay Abraham I 2021-02-02 16:13 ` Kunihiko Hayashi 2021-02-02 16:13 ` Kunihiko Hayashi 2021-01-24 15:09 ` [PATCH v2 2/3] PCI: endpoint: Add endpoint restart management Kunihiko Hayashi 2021-01-24 15:09 ` Kunihiko Hayashi 2021-01-24 15:09 ` [PATCH v2 3/3] PCI: uniphier-ep: Add EPC restart management support Kunihiko Hayashi 2021-01-24 15:09 ` Kunihiko Hayashi 2021-01-28 14:29 ` Kishon Vijay Abraham I 2021-01-28 14:29 ` Kishon Vijay Abraham I 2021-02-02 16:13 ` Kunihiko Hayashi 2021-02-02 16:13 ` Kunihiko Hayashi
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