From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 20 Aug 2025 14:01:15 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uohVE-002bkZ-0C for lore@lore.pengutronix.de; Wed, 20 Aug 2025 14:01:15 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uohVC-0004ap-Pq for lore@pengutronix.de; Wed, 20 Aug 2025 14:01:15 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+XciempmWnstZpdEpD/RSwkdU52P/ITAXtyPIcAXboc=; b=0cQEAA+msc6NwIXqyrXO/pdJIY Erok7lwiwl/gZJbamWNa4U/b4Pmy9Iyr4JjCjZGaDcnSAWdxeProPjKVS6XZjRibEdPM6a4TuIT8H AoE0UYGCz5S1rhHj12N5pL3FcshIcdJFySeivs8+V+tcvau4SY97k8u+Fl9cXjFHDqNiGCGY4mSK1 9lslDdQolPS8m9WCNjIvivYr6Y8wQX0W7hcuWOSfm0r5Yj6Pk5LGY6jJVDXqZM+DgCvnSliMGjPpP Uh1wfzvBWAA2Tnjz5ByPDxmr2VRKux7EeDMySLSoB8U+IaAeIbv3857TcqM/hxyDt89q1OlH9YqPn URGcZiQA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uohUg-0000000DUvV-3yzz; Wed, 20 Aug 2025 12:00:42 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uohTF-0000000DUPR-123D for barebox@lists.infradead.org; Wed, 20 Aug 2025 11:59:14 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=[127.0.0.1]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1uohTD-0003vI-To; Wed, 20 Aug 2025 13:59:11 +0200 Message-ID: <007c5c91-6a6c-4877-8aae-df381aa48677@pengutronix.de> Date: Wed, 20 Aug 2025 13:59:11 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Marco Felsch , Sascha Hauer , BAREBOX References: <20250820-v2024-05-0-topic-fit-overlay-v6-0-9d1b3bab2ee2@pengutronix.de> <20250820-v2024-05-0-topic-fit-overlay-v6-12-9d1b3bab2ee2@pengutronix.de> Content-Language: en-US, de-DE, de-BE From: Ahmad Fatoum In-Reply-To: <20250820-v2024-05-0-topic-fit-overlay-v6-12-9d1b3bab2ee2@pengutronix.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250820_045913_293704_B1830B69 X-CRM114-Status: GOOD ( 21.68 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH v6 12/12] FIT: add support to cache opened fit images X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Hi, On 8/20/25 11:48, Marco Felsch wrote: > Cache the FIT image fit_open() calls to avoid loading the same FIT image > twice. This is very useful if the same FIT image is used to provide the > base devicetree, kernel and initrd as well as devicetree overlays. Just curious, how much time does this save? Cheers, Ahmad > > Signed-off-by: Marco Felsch > --- > common/image-fit.c | 32 ++++++++++++++++++++++++++++++++ > include/image-fit.h | 4 ++++ > 2 files changed, 36 insertions(+) > > diff --git a/common/image-fit.c b/common/image-fit.c > index c9d08d25f723665e5203d8e8372255a39bf739de..2cde844e46a61f412a46c2c7bb79d833153e5344 100644 > --- a/common/image-fit.c > +++ b/common/image-fit.c > @@ -16,6 +16,7 @@ > #include > #include > #include > +#include > #include > #include > #include > @@ -33,6 +34,8 @@ > #define CHECK_LEVEL_SIG 2 > #define CHECK_LEVEL_MAX 3 > > +static LIST_HEAD(open_fits); > + > static uint32_t dt_struct_advance(struct fdt_header *f, uint32_t dt, int size) > { > dt += size; > @@ -902,6 +905,18 @@ void *fit_open_configuration(struct fit_handle *handle, const char *name, > return conf_node; > } > > +static struct fit_handle *fit_get_handle(const char *filename) > +{ > + struct fit_handle *handle; > + > + list_for_each_entry(handle, &open_fits, entry) { > + if (!strcmp(filename, handle->filename)) > + return handle; > + } > + > + return NULL; > +} > + > static int fit_do_open(struct fit_handle *handle) > { > const char *desc = "(no description)"; > @@ -951,6 +966,8 @@ struct fit_handle *fit_open_buf(const void *buf, size_t size, bool verbose, > handle->size = size; > handle->verify = verify; > > + refcount_set(&handle->users, 1); > + > ret = fit_do_open(handle); > if (ret) { > fit_close(handle); > @@ -985,6 +1002,12 @@ struct fit_handle *fit_open(const char *_filename, bool verbose, > return ERR_PTR(-errno); > } > > + handle = fit_get_handle(filename); > + if (handle) { > + refcount_inc(&handle->users); > + return handle; > + } > + > handle = xzalloc(sizeof(struct fit_handle)); > > handle->verbose = verbose; > @@ -1002,6 +1025,9 @@ struct fit_handle *fit_open(const char *_filename, bool verbose, > handle->fit = handle->fit_alloc; > handle->filename = filename; > > + refcount_set(&handle->users, 1); > + list_add(&handle->entry, &open_fits); > + > ret = fit_do_open(handle); > if (ret) { > fit_close(handle); > @@ -1013,9 +1039,15 @@ struct fit_handle *fit_open(const char *_filename, bool verbose, > > static void __fit_close(struct fit_handle *handle) > { > + if (!refcount_dec_and_test(&handle->users)) > + return; > + > if (handle->root) > of_delete_node(handle->root); > > + if (handle->filename) > + list_del(&handle->entry); > + > free(handle->filename); > free(handle->fit_alloc); > } > diff --git a/include/image-fit.h b/include/image-fit.h > index 68f70f4365cb7a650596263086f7de2209d5957e..f9791ff251c554eda56bf3af98c8abceb056a176 100644 > --- a/include/image-fit.h > +++ b/include/image-fit.h > @@ -7,6 +7,7 @@ > #define __IMAGE_FIT_H__ > > #include > +#include > #include > > struct fit_handle { > @@ -15,6 +16,9 @@ struct fit_handle { > size_t size; > char *filename; > > + struct list_head entry; > + refcount_t users; > + > bool verbose; > enum bootm_verify verify; > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |