From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 11 Dec 2025 21:53:11 +0100 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 1vTnew-00AQfA-38 for lore@lore.pengutronix.de; Thu, 11 Dec 2025 21:53:10 +0100 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 1vTnew-0002oz-B9 for lore@pengutronix.de; Thu, 11 Dec 2025 21:53:10 +0100 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: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=o1wsU5gNp6Wvg9IpQaoDEVu080PhWMnMMALPrEU11is=; b=2EyFzHuxIGKmXIuBzUNZ08t3D7 5K/pCSMObwsXnupw1LGwztVde0jQ3u8d6iC1h/8G2lrGoMRpLCNLJxZ1YflzWaV0TUtx52y9M+9/e wmWBvfEdSrmIVbQ+z7HHebiTP1Q6JQMDhouDleR0WUGpAEf3cSojM3sqyiaAeOHuBzJOIc/Bf1WAP ACArleXO9RkLG/6TiYtV2EP9hIVPGpYBCeQRtYYhPg4nXzo8+w9/JDaD4pEwD8UEYo+eltv4Sdfvv hVmg5UkDv+uEELYJH5Vru3PSmDNuC4QMP0b0APdYqRWVvZgysH1pRC3YYy+TDg2vqnWsCJtiJi+e4 AVqrXhow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vTneZ-0000000HIBQ-0YLh; Thu, 11 Dec 2025 20:52:47 +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 1vTneV-0000000HI7W-16jN for barebox@lists.infradead.org; Thu, 11 Dec 2025 20:52:45 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vTneT-0002VW-Pq; Thu, 11 Dec 2025 21:52:41 +0100 Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vTneT-005BZC-1r; Thu, 11 Dec 2025 21:52:41 +0100 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.98.2) (envelope-from ) id 1vTneT-0000000CFbB-1z4m; Thu, 11 Dec 2025 21:52:41 +0100 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum , Ahmad Fatoum Date: Thu, 11 Dec 2025 21:50:07 +0100 Message-ID: <20251211205240.2836186-6-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251211205240.2836186-1-a.fatoum@pengutronix.de> References: <20251211205240.2836186-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251211_125243_330540_DA61855E X-CRM114-Status: UNSURE ( 9.29 ) X-CRM114-Notice: Please train this message. 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=-4.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 5/6] memory: add helpers for iterating over memory regions 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) From: Ahmad Fatoum Now that we have the resource_iter_* functions, add helpers for conveniently traversing requested regions and the gaps between them. Signed-off-by: Ahmad Fatoum --- include/linux/ioport.h | 18 ++++++++++++++++++ include/memory.h | 6 ++++++ 2 files changed, 24 insertions(+) diff --git a/include/linux/ioport.h b/include/linux/ioport.h index 1b5dfdcb373d..1d8686d51e81 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -272,5 +272,23 @@ struct resource *resource_iter_last(struct resource *current, struct resource *g struct resource *resource_iter_prev(struct resource *current, struct resource *gap); struct resource *resource_iter_next(struct resource *current, struct resource *gap); +/** + * for_each_resource_region - Iterate over child resources and gaps between them + * @parent: parent resource + * @region: pointer to child resource or gap + */ +#define for_each_resource_region(parent, region) \ + for (struct resource gap, *region = resource_iter_first((parent), &gap); \ + region; region = resource_iter_next(region, &gap)) + +/** + * for_each_resource_region_reverse - Reverse iterate over child resources and gaps between them + * @parent: parent resource + * @region: pointer to child resource or gap + */ +#define for_each_resource_region_reverse(parent, region) \ + for (struct resource gap, *region = resource_iter_last((parent), &gap); \ + region; region = resource_iter_prev(region, &gap)) + #endif /* __ASSEMBLY__ */ #endif /* _LINUX_IOPORT_H */ diff --git a/include/memory.h b/include/memory.h index dea76dd2b1f7..65614b97ec8b 100644 --- a/include/memory.h +++ b/include/memory.h @@ -30,6 +30,12 @@ int barebox_add_memory_bank(const char *name, resource_size_t start, list_for_each_entry(rsv, &(mem)->res->children, sibling) \ if (is_reserved_resource(rsv)) +#define for_each_memory_bank_region(bank, region) \ + for_each_resource_region((bank)->res, region) + +#define for_each_memory_bank_region_reverse(bank, region) \ + for_each_resource_region_reverse((bank)->res, region) + struct resource *__request_sdram_region(const char *name, resource_size_t start, resource_size_t size); -- 2.47.3