From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 09937C4361B for ; Tue, 8 Dec 2020 11:05:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C46282076D for ; Tue, 8 Dec 2020 11:05:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728764AbgLHLFP (ORCPT ); Tue, 8 Dec 2020 06:05:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727798AbgLHLFO (ORCPT ); Tue, 8 Dec 2020 06:05:14 -0500 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60F15C061793 for ; Tue, 8 Dec 2020 03:04:34 -0800 (PST) Received: by mail-wr1-x441.google.com with SMTP id 91so11862111wrj.7 for ; Tue, 08 Dec 2020 03:04:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=oVdto4l/iQFOE/jcGLfjaxzoGzq2Ps5a3Ie3KVUxu1I=; b=qb024noJnAcaD4FrKPkd4Ne8IhxPQM8AlFz92r4A6tTwucH6MQXOpPuRiJdwTukbJK J+1ZPm8YX5jCZaEvyjJ6vpn4lAMa7UFXjLoCTOLFc501Hrx1cNiVd+Z8WluLCJc96MuN lG3zsMPbMQ7hm6N6VfWocnn+bbRnLm+Gti9iZ1XUFKkrwPa52L+7FuO98JnyIATsKAvJ zhHBZaGpGCQf8SOU7RWmdoMsg25XwH8LXk3+VNnowPQbs0YR6Fbl8kFUTCijvApbHnRT x/2pY4XAtfUyMd/mC2HSFBNTO0FPeKDCdLVM3JnPGjoXBVpvqs5FD3afdifAdwB7tAmT gSLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=oVdto4l/iQFOE/jcGLfjaxzoGzq2Ps5a3Ie3KVUxu1I=; b=ROfImWdj9w28tI4IypgV1tFea9uKuQNersDu2AvMe/9zzpTNRPwPRh45H3/Z59FfQV DuBqKCGq5qCXI+Z1Rsx8vRJ3fQ3oMqYkREJOpKOlKZ4crerF41tqBv3XcHLQstl6d6Lb mu0l8eifjY7Io+HJmMGV7Oh8z4/hFyNjbXIDOVgbS2axU/bbFXhTy6y0SYSt0s3c4KFP RF3MWV5jZyR4NuqsmVihmWZtZZm+EgzJX4S52QmUOvc5mZtIrW7pdTfl4pG9W425bBGM 3eG9eB4zRx9s3a38uiWsGLIhKW0CtSCQ5dshaQs/CkRK4UXd1+GE3m+AgDylIflE0j4X s0eg== X-Gm-Message-State: AOAM532485/U8So12rfa9e5wM/kukLBkhIQU/T5ht9BCQhmbhuC8GQZ0 ERahpEtHH6XoImyky8n9bp9ExA== X-Google-Smtp-Source: ABdhPJxArhPoyEic163xkIJznknOhIaG8ofGldEM/e3Q9Bok2a5xIQOzLIt+OejlKTMEWByALsMqsw== X-Received: by 2002:adf:f7c2:: with SMTP id a2mr24125501wrq.11.1607425473108; Tue, 08 Dec 2020 03:04:33 -0800 (PST) Received: from dell ([91.110.221.209]) by smtp.gmail.com with ESMTPSA id h20sm2925583wmb.29.2020.12.08.03.04.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Dec 2020 03:04:32 -0800 (PST) Date: Tue, 8 Dec 2020 11:04:30 +0000 From: Lee Jones To: Mathieu Poirier Cc: Grzegorz Jaszczyk , ohad@wizery.com, bjorn.andersson@linaro.org, s-anna@ti.com, linux-remoteproc@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, praneeth@ti.com, rogerq@ti.com Subject: Re: [PATCH v3 3/6] remoteproc: pru: Add support for PRU specific interrupt configuration Message-ID: <20201208110430.GS4801@dell> References: <20201204201807.14716-1-grzegorz.jaszczyk@linaro.org> <20201204201807.14716-4-grzegorz.jaszczyk@linaro.org> <20201207173731.GA1509079@xps15> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20201207173731.GA1509079@xps15> Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org On Mon, 07 Dec 2020, Mathieu Poirier wrote: > On Fri, Dec 04, 2020 at 09:18:04PM +0100, Grzegorz Jaszczyk wrote: > > The firmware blob can contain optional ELF sections: .resource_table > > section and .pru_irq_map one. The second one contains the PRUSS > > interrupt mapping description, which needs to be setup before powering > > on the PRU core. To avoid RAM wastage this ELF section is not mapped to > > any ELF segment (by the firmware linker) and therefore is not loaded to > > PRU memory. > > > > The PRU interrupt configuration is handled within the PRUSS INTC irqchip > > driver and leverages the system events to interrupt channels and host > > interrupts mapping configuration. Relevant irq routing information is > > passed through a special .pru_irq_map ELF section (for interrupts routed > > to and used by PRU cores) or via the PRU application's device tree node > > (for interrupts routed to and used by the main CPU). The mappings are > > currently programmed during the booting/shutdown of the PRU. > > > > The interrupt configuration passed through .pru_irq_map ELF section is > > optional. It varies on specific firmware functionality and therefore > > have to be unwinded during PRU stop and performed again during > > PRU start. > > > > Co-developed-by: Suman Anna > > Signed-off-by: Suman Anna > > Signed-off-by: Grzegorz Jaszczyk > > --- [...] > > drivers/remoteproc/pru_rproc.c | 180 +++++++++++++++++++++++++++++++++ > > drivers/remoteproc/pru_rproc.h | 46 +++++++++ > > 2 files changed, 226 insertions(+) > > create mode 100644 drivers/remoteproc/pru_rproc.h > > > > diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c > > index d33392bbd8af..4ef59d15d888 100644 > > --- a/drivers/remoteproc/pru_rproc.c > > +++ b/drivers/remoteproc/pru_rproc.c > > @@ -11,13 +11,16 @@ > > */ [...] > > +static int pru_handle_intrmap(struct rproc *rproc) > > +{ > > + struct device *dev = rproc->dev.parent; > > + struct pru_rproc *pru = rproc->priv; > > + struct pru_irq_rsc *rsc = pru->pru_interrupt_map; > > + struct irq_fwspec fwspec; > > + struct device_node *irq_parent; > > + int i, ret = 0; > > + > > + /* not having pru_interrupt_map is not an error */ > > + if (!rsc) > > + return 0; > > + > > + /* currently supporting only type 0 */ > > + if (rsc->type != 0) { > > + dev_err(dev, "unsupported rsc type: %d\n", rsc->type); > > + return -EINVAL; > > + } > > + > > + if (rsc->num_evts > MAX_PRU_SYS_EVENTS) > > + return -EINVAL; > > + > > + if (sizeof(*rsc) + rsc->num_evts * sizeof(struct pruss_int_map) != > > + pru->pru_interrupt_map_sz) > > + return -EINVAL; > > + > > + pru->evt_count = rsc->num_evts; > > + pru->mapped_irq = kcalloc(pru->evt_count, sizeof(int), GFP_KERNEL); > > sizeof(unsigned int) Would you mind trimming your replies please? Brain grepping through 200+ lines of quote for a one line review comment is a little frustrating. TIA. -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4562DC433FE for ; Tue, 8 Dec 2020 11:05:55 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BFAF32072C for ; 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Tue, 08 Dec 2020 03:04:32 -0800 (PST) Date: Tue, 8 Dec 2020 11:04:30 +0000 From: Lee Jones To: Mathieu Poirier Subject: Re: [PATCH v3 3/6] remoteproc: pru: Add support for PRU specific interrupt configuration Message-ID: <20201208110430.GS4801@dell> References: <20201204201807.14716-1-grzegorz.jaszczyk@linaro.org> <20201204201807.14716-4-grzegorz.jaszczyk@linaro.org> <20201207173731.GA1509079@xps15> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201207173731.GA1509079@xps15> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201208_060435_664606_EDBCA068 X-CRM114-Status: GOOD ( 27.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ohad@wizery.com, devicetree@vger.kernel.org, Grzegorz Jaszczyk , linux-omap@vger.kernel.org, praneeth@ti.com, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, rogerq@ti.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCAwNyBEZWMgMjAyMCwgTWF0aGlldSBQb2lyaWVyIHdyb3RlOgoKPiBPbiBGcmksIERl YyAwNCwgMjAyMCBhdCAwOToxODowNFBNICswMTAwLCBHcnplZ29yeiBKYXN6Y3p5ayB3cm90ZToK PiA+IFRoZSBmaXJtd2FyZSBibG9iIGNhbiBjb250YWluIG9wdGlvbmFsIEVMRiBzZWN0aW9uczog LnJlc291cmNlX3RhYmxlCj4gPiBzZWN0aW9uIGFuZCAucHJ1X2lycV9tYXAgb25lLiBUaGUgc2Vj b25kIG9uZSBjb250YWlucyB0aGUgUFJVU1MKPiA+IGludGVycnVwdCBtYXBwaW5nIGRlc2NyaXB0 aW9uLCB3aGljaCBuZWVkcyB0byBiZSBzZXR1cCBiZWZvcmUgcG93ZXJpbmcKPiA+IG9uIHRoZSBQ UlUgY29yZS4gVG8gYXZvaWQgUkFNIHdhc3RhZ2UgdGhpcyBFTEYgc2VjdGlvbiBpcyBub3QgbWFw cGVkIHRvCj4gPiBhbnkgRUxGIHNlZ21lbnQgKGJ5IHRoZSBmaXJtd2FyZSBsaW5rZXIpIGFuZCB0 aGVyZWZvcmUgaXMgbm90IGxvYWRlZCB0bwo+ID4gUFJVIG1lbW9yeS4KPiA+IAo+ID4gVGhlIFBS VSBpbnRlcnJ1cHQgY29uZmlndXJhdGlvbiBpcyBoYW5kbGVkIHdpdGhpbiB0aGUgUFJVU1MgSU5U QyBpcnFjaGlwCj4gPiBkcml2ZXIgYW5kIGxldmVyYWdlcyB0aGUgc3lzdGVtIGV2ZW50cyB0byBp bnRlcnJ1cHQgY2hhbm5lbHMgYW5kIGhvc3QKPiA+IGludGVycnVwdHMgbWFwcGluZyBjb25maWd1 cmF0aW9uLiBSZWxldmFudCBpcnEgcm91dGluZyBpbmZvcm1hdGlvbiBpcwo+ID4gcGFzc2VkIHRo cm91Z2ggYSBzcGVjaWFsIC5wcnVfaXJxX21hcCBFTEYgc2VjdGlvbiAoZm9yIGludGVycnVwdHMg cm91dGVkCj4gPiB0byBhbmQgdXNlZCBieSBQUlUgY29yZXMpIG9yIHZpYSB0aGUgUFJVIGFwcGxp Y2F0aW9uJ3MgZGV2aWNlIHRyZWUgbm9kZQo+ID4gKGZvciBpbnRlcnJ1cHRzIHJvdXRlZCB0byBh bmQgdXNlZCBieSB0aGUgbWFpbiBDUFUpLiBUaGUgbWFwcGluZ3MgYXJlCj4gPiBjdXJyZW50bHkg cHJvZ3JhbW1lZCBkdXJpbmcgdGhlIGJvb3Rpbmcvc2h1dGRvd24gb2YgdGhlIFBSVS4KPiA+IAo+ ID4gVGhlIGludGVycnVwdCBjb25maWd1cmF0aW9uIHBhc3NlZCB0aHJvdWdoIC5wcnVfaXJxX21h cCBFTEYgc2VjdGlvbiBpcwo+ID4gb3B0aW9uYWwuIEl0IHZhcmllcyBvbiBzcGVjaWZpYyBmaXJt d2FyZSBmdW5jdGlvbmFsaXR5IGFuZCB0aGVyZWZvcmUKPiA+IGhhdmUgdG8gYmUgdW53aW5kZWQg ZHVyaW5nIFBSVSBzdG9wIGFuZCBwZXJmb3JtZWQgYWdhaW4gZHVyaW5nCj4gPiBQUlUgc3RhcnQu Cj4gPiAKPiA+IENvLWRldmVsb3BlZC1ieTogU3VtYW4gQW5uYSA8cy1hbm5hQHRpLmNvbT4KPiA+ IFNpZ25lZC1vZmYtYnk6IFN1bWFuIEFubmEgPHMtYW5uYUB0aS5jb20+Cj4gPiBTaWduZWQtb2Zm LWJ5OiBHcnplZ29yeiBKYXN6Y3p5ayA8Z3J6ZWdvcnouamFzemN6eWtAbGluYXJvLm9yZz4KPiA+ IC0tLQoKWy4uLl0KCj4gPiAgZHJpdmVycy9yZW1vdGVwcm9jL3BydV9ycHJvYy5jIHwgMTgwICsr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKwo+ID4gIGRyaXZlcnMvcmVtb3RlcHJvYy9w cnVfcnByb2MuaCB8ICA0NiArKysrKysrKysKPiA+ICAyIGZpbGVzIGNoYW5nZWQsIDIyNiBpbnNl cnRpb25zKCspCj4gPiAgY3JlYXRlIG1vZGUgMTAwNjQ0IGRyaXZlcnMvcmVtb3RlcHJvYy9wcnVf cnByb2MuaAo+ID4gCj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9yZW1vdGVwcm9jL3BydV9ycHJv Yy5jIGIvZHJpdmVycy9yZW1vdGVwcm9jL3BydV9ycHJvYy5jCj4gPiBpbmRleCBkMzMzOTJiYmQ4 YWYuLjRlZjU5ZDE1ZDg4OCAxMDA2NDQKPiA+IC0tLSBhL2RyaXZlcnMvcmVtb3RlcHJvYy9wcnVf cnByb2MuYwo+ID4gKysrIGIvZHJpdmVycy9yZW1vdGVwcm9jL3BydV9ycHJvYy5jCj4gPiBAQCAt MTEsMTMgKzExLDE2IEBACj4gPiAgICovCgpbLi4uXQoKPiA+ICtzdGF0aWMgaW50IHBydV9oYW5k bGVfaW50cm1hcChzdHJ1Y3QgcnByb2MgKnJwcm9jKQo+ID4gK3sKPiA+ICsJc3RydWN0IGRldmlj ZSAqZGV2ID0gcnByb2MtPmRldi5wYXJlbnQ7Cj4gPiArCXN0cnVjdCBwcnVfcnByb2MgKnBydSA9 IHJwcm9jLT5wcml2Owo+ID4gKwlzdHJ1Y3QgcHJ1X2lycV9yc2MgKnJzYyA9IHBydS0+cHJ1X2lu dGVycnVwdF9tYXA7Cj4gPiArCXN0cnVjdCBpcnFfZndzcGVjIGZ3c3BlYzsKPiA+ICsJc3RydWN0 IGRldmljZV9ub2RlICppcnFfcGFyZW50Owo+ID4gKwlpbnQgaSwgcmV0ID0gMDsKPiA+ICsKPiA+ ICsJLyogbm90IGhhdmluZyBwcnVfaW50ZXJydXB0X21hcCBpcyBub3QgYW4gZXJyb3IgKi8KPiA+ ICsJaWYgKCFyc2MpCj4gPiArCQlyZXR1cm4gMDsKPiA+ICsKPiA+ICsJLyogY3VycmVudGx5IHN1 cHBvcnRpbmcgb25seSB0eXBlIDAgKi8KPiA+ICsJaWYgKHJzYy0+dHlwZSAhPSAwKSB7Cj4gPiAr CQlkZXZfZXJyKGRldiwgInVuc3VwcG9ydGVkIHJzYyB0eXBlOiAlZFxuIiwgcnNjLT50eXBlKTsK PiA+ICsJCXJldHVybiAtRUlOVkFMOwo+ID4gKwl9Cj4gPiArCj4gPiArCWlmIChyc2MtPm51bV9l dnRzID4gTUFYX1BSVV9TWVNfRVZFTlRTKQo+ID4gKwkJcmV0dXJuIC1FSU5WQUw7Cj4gPiArCj4g PiArCWlmIChzaXplb2YoKnJzYykgKyByc2MtPm51bV9ldnRzICogc2l6ZW9mKHN0cnVjdCBwcnVz c19pbnRfbWFwKSAhPQo+ID4gKwkgICAgcHJ1LT5wcnVfaW50ZXJydXB0X21hcF9zeikKPiA+ICsJ CXJldHVybiAtRUlOVkFMOwo+ID4gKwo+ID4gKwlwcnUtPmV2dF9jb3VudCA9IHJzYy0+bnVtX2V2 dHM7Cj4gPiArCXBydS0+bWFwcGVkX2lycSA9IGtjYWxsb2MocHJ1LT5ldnRfY291bnQsIHNpemVv ZihpbnQpLCBHRlBfS0VSTkVMKTsKPiAKPiBzaXplb2YodW5zaWduZWQgaW50KQoKV291bGQgeW91 IG1pbmQgdHJpbW1pbmcgeW91ciByZXBsaWVzIHBsZWFzZT8KCkJyYWluIGdyZXBwaW5nIHRocm91 Z2ggMjAwKyBsaW5lcyBvZiBxdW90ZSBmb3IgYSBvbmUgbGluZSByZXZpZXcKY29tbWVudCBpcyBh IGxpdHRsZSBmcnVzdHJhdGluZy4KClRJQS4KCi0tIApMZWUgSm9uZXMgW+adjueQvOaWr10KU2Vu aW9yIFRlY2huaWNhbCBMZWFkIC0gRGV2ZWxvcGVyIFNlcnZpY2VzCkxpbmFyby5vcmcg4pSCIE9w ZW4gc291cmNlIHNvZnR3YXJlIGZvciBBcm0gU29DcwpGb2xsb3cgTGluYXJvOiBGYWNlYm9vayB8 IFR3aXR0ZXIgfCBCbG9nCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxp c3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0 aW5mby9saW51eC1hcm0ta2VybmVsCg==