From: Roger Quadros <rogerq@ti.com>
To: "Andrew F. Davis" <afd@ti.com>,
tony@atomide.com, ohad@wizery.com, bjorn.andersson@linaro.org
Cc: s-anna@ti.com, david@lechnology.com, nsekhar@ti.com,
t-kristo@ti.com, nsaulnier@ti.com, jreeder@ti.com,
m-karicheri2@ti.com, woods.technical@gmail.com,
linux-omap@vger.kernel.org, linux-remoteproc@vger.kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <marc.zyngier@arm.com>
Subject: Re: [PATCH v2 04/14] irqchip: pruss: Add a PRUSS irqchip driver for PRUSS interrupts
Date: Mon, 4 Feb 2019 17:33:07 +0200 [thread overview]
Message-ID: <5C585B33.4030505@ti.com> (raw)
In-Reply-To: <57e5b54e-430e-daa1-4b5d-f61827095606@ti.com>
On 04/02/19 17:11, Andrew F. Davis wrote:
> On 2/4/19 8:22 AM, Roger Quadros wrote:
>> From: "Andrew F. Davis" <afd@ti.com>
>>
>
> [...]
>
>> +static const struct pruss_intc_match_data am437x_pruss_intc_data = {
>> + .no_host7_intr = true,
>
> Like done for the PRUSS driver with 'has_no_sharedram' becoming a DT
> flag the same could be done here, then all this match data stuff could
> be dropped.
Agreed.
>
>> +};
>> +
>> +static const struct of_device_id pruss_intc_of_match[] = {
>> + {
>> + .compatible = "ti,am3356-pruss-intc",
>> + .data = NULL,
>> + },
>> + {
>> + .compatible = "ti,am4376-pruss-intc",
>> + .data = &am437x_pruss_intc_data,
>> + },
>> + {
>> + .compatible = "ti,am5728-pruss-intc",
>> + .data = NULL,
>> + },
>> + { /* sentinel */ },
>> +};
>> +MODULE_DEVICE_TABLE(of, pruss_intc_of_match);
>> +
>> +static struct platform_driver pruss_intc_driver = {
>> + .driver = {
>> + .name = "pruss-intc",
>> + .of_match_table = pruss_intc_of_match,
>> + },
>> + .probe = pruss_intc_probe,
>> + .remove = pruss_intc_remove,
>> +};
>> +module_platform_driver(pruss_intc_driver);
>> +
>> +MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
>> +MODULE_AUTHOR("Suman Anna <s-anna@ti.com>");
>> +MODULE_DESCRIPTION("PRU-ICSS INTC Driver");
>> +MODULE_LICENSE("GPL v2");
>> diff --git a/include/linux/irqchip/irq-pruss-intc.h b/include/linux/irqchip/irq-pruss-intc.h
>> new file mode 100644
>> index 0000000..4538a0b
>> --- /dev/null
>> +++ b/include/linux/irqchip/irq-pruss-intc.h
>> @@ -0,0 +1,94 @@
>> +/* SPDX-License-Identifier: GPL-2.0 */
>> +/**
>> + * irq-pruss-intc.h - PRU-ICSS INTC management
>
> Filename not needed.
OK.
cheers,
-roger
>
> Andrew
>
>> + *
>> + * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com
>> + */
>> +
>> +#ifndef __INCLUDE_LINUX_IRQCHIP_IRQ_PRUSS_INTC_H
>> +#define __INCLUDE_LINUX_IRQCHIP_IRQ_PRUSS_INTC_H
>> +
>> +/* maximum number of system events */
>> +#define MAX_PRU_SYS_EVENTS 64
>> +
>> +/* maximum number of interrupt channels */
>> +#define MAX_PRU_CHANNELS 10
>> +
>> +/**
>> + * struct pruss_intc_config - INTC configuration info
>> + * @sysev_to_ch: system events to channel mapping information
>> + * @ch_to_host: interrupt channel to host interrupt information
>> + */
>> +struct pruss_intc_config {
>> + s8 sysev_to_ch[MAX_PRU_SYS_EVENTS];
>> + s8 ch_to_host[MAX_PRU_CHANNELS];
>> +};
>> +
>> +#if IS_ENABLED(CONFIG_TI_PRUSS)
>> +
>> +/**
>> + * pruss_intc_configure() - configure the PRUSS INTC
>> + * @dev: device
>> + * @intc_config: PRU core-specific INTC configuration
>> + *
>> + * Configures the PRUSS INTC with the provided configuration from
>> + * a PRU core. Any existing event to channel mappings or channel to
>> + * host interrupt mappings are checked to make sure there are no
>> + * conflicting configuration between both the PRU cores. The function
>> + * is intended to be used only by the PRU remoteproc driver.
>> + *
>> + * Returns 0 on success, or a suitable error code otherwise
>> + */
>> +int pruss_intc_configure(struct device *dev,
>> + struct pruss_intc_config *intc_config);
>> +
>> +/**
>> + * pruss_intc_unconfigure() - unconfigure the PRUSS INTC
>> + * @dev: device
>> + * @intc_config: PRU core specific INTC configuration
>> + *
>> + * Undo whatever was done in pruss_intc_configure() for a PRU core.
>> + * It should be sufficient to just mark the resources free in the
>> + * global map and disable the host interrupts and sysevents.
>> + */
>> +int pruss_intc_unconfigure(struct device *dev,
>> + struct pruss_intc_config *intc_config);
>> +/**
>> + * pruss_intc_trigger() - trigger a PRU system event
>> + * @irq: linux IRQ number associated with a PRU system event
>> + *
>> + * Trigger an interrupt by signalling a specific PRU system event.
>> + * This can be used by PRUSS client users to raise/send an event to
>> + * a PRU or any other core that is listening on the host interrupt
>> + * mapped to that specific PRU system event. The @irq variable is the
>> + * Linux IRQ number associated with a specific PRU system event that
>> + * a client user/application uses. The interrupt mappings for this is
>> + * provided by the PRUSS INTC irqchip instance.
>> + *
>> + * Returns 0 on success, or an error value upon failure.
>> + */
>> +int pruss_intc_trigger(unsigned int irq);
>> +
>> +#else
>> +
>> +static inline int pruss_intc_configure(struct device *dev,
>> + struct pruss_intc_config *intc_config)
>> +{
>> + return -ENOTSUPP;
>> +}
>> +
>> +static inline int pruss_intc_unconfigure(struct device *dev,
>> + struct pruss_intc_config *intc_config)
>> +{
>> + return -ENOTSUPP;
>> +}
>> +
>> +static inline int pruss_intc_trigger(unsigned int irq)
>> +{
>> + return -ENOTSUPP;
>> +}
>> +
>> +#endif /* CONFIG_TI_PRUSS */
>> +
>> +#endif /* __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H */
>> +
>>
--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
next prev parent reply other threads:[~2019-02-04 15:33 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-04 14:22 [PATCH v2 00/14] Add support for TI PRU ICSS Roger Quadros
2019-02-04 14:22 ` [PATCH v2 01/14] dt-bindings: remoteproc: Add TI PRUSS bindings Roger Quadros
2019-02-04 16:33 ` Tony Lindgren
2019-02-05 9:39 ` Roger Quadros
2019-02-05 15:08 ` Murali Karicheri
2019-02-05 15:41 ` Roger Quadros
2019-02-05 16:15 ` Murali Karicheri
2019-02-05 16:19 ` Tony Lindgren
2019-02-06 15:04 ` Roger Quadros
2019-02-14 2:47 ` Suman Anna
2019-02-05 16:41 ` Tony Lindgren
2019-02-14 3:01 ` Suman Anna
2019-02-08 13:51 ` Linus Walleij
2019-02-14 3:12 ` Suman Anna
2019-02-14 8:37 ` Linus Walleij
2019-02-14 10:55 ` Roger Quadros
[not found] ` <86ef8asfap.wl-marc.zyngier@arm.com>
2019-02-14 15:44 ` Roger Quadros
2019-02-14 15:48 ` Roger Quadros
2019-02-15 0:59 ` Suman Anna
2019-02-20 9:51 ` Linus Walleij
2019-02-14 15:51 ` Marc Zyngier
2019-02-14 16:50 ` Roger Quadros
2019-02-14 2:52 ` Suman Anna
2019-02-14 11:08 ` Roger Quadros
2019-02-14 15:56 ` Tony Lindgren
2019-02-15 1:22 ` Suman Anna
2019-02-15 1:08 ` Suman Anna
2019-02-15 13:43 ` Matthijs van Duin
2019-02-04 14:22 ` [PATCH v2 02/14] soc: ti: pruss: Add a platform driver for PRUSS in TI SoCs Roger Quadros
2019-02-04 14:52 ` Andrew F. Davis
2019-02-04 15:32 ` Roger Quadros
2019-02-04 16:35 ` Tony Lindgren
2019-02-04 14:22 ` [PATCH v2 03/14] dt-binding: irqchip: Add pruss-intc-irq driver for PRUSS interrupts Roger Quadros
2019-02-04 16:36 ` Tony Lindgren
2019-02-14 2:40 ` Suman Anna
2019-02-18 19:32 ` Rob Herring
2019-02-04 14:22 ` [PATCH v2 04/14] irqchip: pruss: Add a PRUSS irqchip " Roger Quadros
2019-02-04 15:11 ` Andrew F. Davis
2019-02-04 15:33 ` Roger Quadros [this message]
2019-02-05 8:51 ` Roger Quadros
2019-02-14 2:15 ` Suman Anna
2019-02-04 18:15 ` Tony Lindgren
2019-02-05 10:35 ` Roger Quadros
2019-02-05 11:04 ` Marc Zyngier
2019-02-14 2:16 ` Suman Anna
2019-02-04 14:22 ` [PATCH v2 05/14] remoteproc: add map parameter to da_to_va Roger Quadros
2019-02-04 14:22 ` [PATCH v2 06/14] remoteproc: add page lookup for TI PRU to ELF loader Roger Quadros
2019-02-04 15:19 ` Andrew F. Davis
2019-02-14 2:22 ` Suman Anna
2019-02-04 14:22 ` [PATCH v2 07/14] remoteproc: Add a rproc_set_firmware() API Roger Quadros
2019-02-04 14:22 ` [PATCH v2 08/14] remoteproc: Add support to handle device specific resource types Roger Quadros
2019-02-04 14:22 ` [PATCH v2 09/14] dt-binding: remoteproc: Add binding doc for PRU Cores in the PRU-ICSS Roger Quadros
2019-02-18 19:36 ` Rob Herring
2019-02-04 14:22 ` [PATCH v2 10/14] remoteproc/pru: Add PRU remoteproc driver Roger Quadros
2019-02-14 2:35 ` Suman Anna
2019-02-14 3:44 ` Suman Anna
2019-02-04 14:22 ` [PATCH v2 11/14] remoteproc/pru: Add pru_rproc_set_ctable() and pru_rproc_set_gpimode() Roger Quadros
2019-02-04 14:22 ` [PATCH v2 12/14] remoteproc/pru: Add support for virtio rpmsg stack Roger Quadros
2019-02-04 14:22 ` [PATCH v2 13/14] rpmsg: virtio_rpmsg_bus: move back rpmsg_hdr into a public header Roger Quadros
2019-02-04 14:22 ` [PATCH v2 14/14] rpmsg: pru: add a PRU RPMsg driver Roger Quadros
2019-02-04 15:26 ` Andrew F. Davis
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5C585B33.4030505@ti.com \
--to=rogerq@ti.com \
--cc=afd@ti.com \
--cc=bjorn.andersson@linaro.org \
--cc=david@lechnology.com \
--cc=devicetree@vger.kernel.org \
--cc=jason@lakedaemon.net \
--cc=jreeder@ti.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-remoteproc@vger.kernel.org \
--cc=m-karicheri2@ti.com \
--cc=marc.zyngier@arm.com \
--cc=nsaulnier@ti.com \
--cc=nsekhar@ti.com \
--cc=ohad@wizery.com \
--cc=s-anna@ti.com \
--cc=t-kristo@ti.com \
--cc=tglx@linutronix.de \
--cc=tony@atomide.com \
--cc=woods.technical@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).