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 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BCD4FC4167B for ; Sat, 25 Nov 2023 16:27:48 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 059648749E; Sat, 25 Nov 2023 17:27:21 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="imTHJF36"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 514F08712E; Sat, 25 Nov 2023 17:27:18 +0100 (CET) Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 6677F87243 for ; Sat, 25 Nov 2023 17:27:14 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=devarsht@ti.com Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 3APGR8Cv053076; Sat, 25 Nov 2023 10:27:08 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1700929628; bh=J6o1HF2Yd4mJbybgru8qw1XZi4NTYX7HYS+70rjpVjA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=imTHJF36UXRaNc0CrpNWCaS7KpBJD/dJzChTnwJUasNNmm7r+IO7o0nI2cScDTq+R 1CAdyu1ghTKW90Z9i6ckYytroaL4ycE5Po+mjaT67aXe4XZU+cLU5xADdaUvBvOHKo OV5nARZFJ3ueDCVJ0T+vEtXnPK1bFTaaWV5W6/hM= Received: from DLEE111.ent.ti.com (dlee111.ent.ti.com [157.170.170.22]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 3APGR8YJ110382 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Sat, 25 Nov 2023 10:27:08 -0600 Received: from DLEE109.ent.ti.com (157.170.170.41) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Sat, 25 Nov 2023 10:27:07 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Sat, 25 Nov 2023 10:27:07 -0600 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 3APGR6hm086017; Sat, 25 Nov 2023 10:27:07 -0600 From: Devarsh Thakkar To: , , , , , , , CC: , , , , , , , Subject: [PATCH v4 1/8] spl: Enforce framebuffer reservation from end of RAM Date: Sat, 25 Nov 2023 21:56:58 +0530 Message-ID: <20231125162705.1383401-2-devarsht@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231125162705.1383401-1-devarsht@ti.com> References: <20231125162705.1383401-1-devarsht@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Add an API which enforces framebuffer reservation from end of RAM. This is done so that next stage can directly skip this region before carrying out further reservations. Signed-off-by: Devarsh Thakkar --- V2: No change. V3: Change spl_reserve_video to spl_reserve_video_from_ram_top which enforce framebuffer reservation from end of RAM. V4: Split this to an independent patch with more details added in comments for API in header file. --- common/spl/spl.c | 19 +++++++++++++++++++ include/spl.h | 10 ++++++++++ 2 files changed, 29 insertions(+) diff --git a/common/spl/spl.c b/common/spl/spl.c index 3ce5bfeec8..b65c439e7a 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -42,6 +42,7 @@ #include #include #include +#include DECLARE_GLOBAL_DATA_PTR; DECLARE_BINMAN_MAGIC_SYM; @@ -152,6 +153,24 @@ void spl_fixup_fdt(void *fdt_blob) #endif } +int spl_reserve_video_from_ram_top(void) +{ + if (CONFIG_IS_ENABLED(VIDEO)) { + ulong addr; + int ret; + + addr = gd->ram_top; + ret = video_reserve(&addr); + if (ret) + return ret; + debug("Reserving %luk for video at: %08lx\n", + ((unsigned long)gd->relocaddr - addr) >> 10, addr); + gd->relocaddr = addr; + } + + return 0; +} + ulong spl_get_image_pos(void) { if (!CONFIG_IS_ENABLED(BINMAN_UBOOT_SYMBOLS)) diff --git a/include/spl.h b/include/spl.h index 0952188901..043875f10f 100644 --- a/include/spl.h +++ b/include/spl.h @@ -889,6 +889,16 @@ int spl_usb_load(struct spl_image_info *spl_image, int spl_ymodem_load_image(struct spl_image_info *spl_image, struct spl_boot_device *bootdev); +/** + * spl_reserve_video_from_ram_top() - Reserve framebuffer memory from end of RAM + * + * This enforces framebuffer reservation at SPL stage from end of RAM so that + * next stage can directly skip this pre-reserved area before carrying out + * further reservations. The allocation address is stored in struct video_uc_plat. + * + * Return: 0 on success, otherwise error code + */ +int spl_reserve_video_from_ram_top(void); /** * spl_invoke_atf - boot using an ARM trusted firmware image -- 2.34.1