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GET /api/patches/2226632/?format=api
{ "id": 2226632, "url": "http://patchwork.ozlabs.org/api/patches/2226632/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260422170946.3394481-7-rs@ti.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260422170946.3394481-7-rs@ti.com>", "list_archive_url": null, "date": "2026-04-22T17:09:46", "name": "[PATCHv5,6/6] memory: reserve from start_addr_sp to initial_relocaddr", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "d8ce531e7100fbcb44d497b5304ac9e85ec46b55", "submitter": { "id": 88727, "url": "http://patchwork.ozlabs.org/api/people/88727/?format=api", "name": "Randolph Sapp", "email": "rs@ti.com" }, "delegate": { "id": 68728, "url": "http://patchwork.ozlabs.org/api/users/68728/?format=api", "username": "xypron", "first_name": "Heinrich", "last_name": "Schuchardt", "email": "xypron.glpk@gmx.de" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260422170946.3394481-7-rs@ti.com/mbox/", "series": [ { "id": 501048, "url": "http://patchwork.ozlabs.org/api/series/501048/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=501048", "date": "2026-04-22T17:09:42", "name": "various memory related fixups", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501048/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2226632/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226632/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256\n header.s=selector1 header.b=nstsOHjK;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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helo=lewvzet200.ext.ti.com; pr=C", "From": "<rs@ti.com>", "To": "<robertcnelson@gmail.com>, <ayush@beagleboard.org>,\n <Erik.Welsh@octavosystems.com>, <anshuld@ti.com>, <bb@ti.com>,\n <trini@konsulko.com>, <afd@ti.com>, <xypron.glpk@gmx.de>,\n <ilias.apalodimas@linaro.org>", "CC": "<u-boot@lists.denx.de>", "Subject": "[PATCHv5 6/6] memory: reserve from start_addr_sp to initial_relocaddr", "Date": "Wed, 22 Apr 2026 12:09:46 -0500", "Message-ID": "<20260422170946.3394481-7-rs@ti.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260422170946.3394481-1-rs@ti.com>", "References": "<20260422170946.3394481-1-rs@ti.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-C2ProcessedOrg": "333ef613-75bf-4e12-a4b1-8e3623f5dcea", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "SJ1PEPF000023DA:EE_|DS4PR10MB997671:EE_", "X-MS-Office365-Filtering-Correlation-Id": "01f3ad70-ff9f-4078-0718-08dea091fbe5", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230040|376014|82310400026|36860700016|1800799024|22082099003|18002099003|56012099003;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:198.47.23.194; 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Ip=[198.47.23.194];\n Helo=[lewvzet200.ext.ti.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n SJ1PEPF000023DA.namprd21.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "DS4PR10MB997671", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "From: Randolph Sapp <rs@ti.com>\n\nAdd a new global data struct member called initial_relocaddr. This\nstores the original value of relocaddr, directly from setup_dest_addr.\nThis is specifically to avoid any adjustments made by other init\nfunctions.\n\nReserve the memory from gd->start_addr_sp - CONFIG_STACK_SIZE to\ngd->initial_relocaddr instead of gd->ram_top. This allows platform\nspecific relocation addresses to work without unnecessarily painting\nover a large range.\n\nSince PRAM comes out of this initial area up to initial_relocaddr, we no\nlonger need to account for it separately.\n\nSigned-off-by: Randolph Sapp <rs@ti.com>\n---\n common/board_f.c | 9 ++++++-\n include/asm-generic/global_data.h | 7 ++++++\n lib/efi_loader/efi_memory.c | 2 +-\n lib/lmb.c | 39 +++++--------------------------\n 4 files changed, 22 insertions(+), 35 deletions(-)", "diff": "diff --git a/common/board_f.c b/common/board_f.c\nindex ce87c619e68..31c6eb725fb 100644\n--- a/common/board_f.c\n+++ b/common/board_f.c\n@@ -330,6 +330,8 @@ __weak int arch_setup_dest_addr(void)\n \n static int setup_dest_addr(void)\n {\n+\tint ret;\n+\n \tdebug(\"Monitor len: %08x\\n\", gd->mon_len);\n \t/*\n \t * Ram is setup, size stored in gd !!\n@@ -356,7 +358,12 @@ static int setup_dest_addr(void)\n \tgd->relocaddr = gd->ram_top;\n \tdebug(\"Ram top: %08llX\\n\", (unsigned long long)gd->ram_top);\n \n-\treturn arch_setup_dest_addr();\n+\tret = arch_setup_dest_addr();\n+\tif (ret != 0)\n+\t\treturn ret;\n+\n+\tgd->initial_relocaddr = gd->relocaddr;\n+\treturn ret;\n }\n \n #ifdef CFG_PRAM\ndiff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h\nindex 745d2c3a966..6c60a79c2ab 100644\n--- a/include/asm-generic/global_data.h\n+++ b/include/asm-generic/global_data.h\n@@ -107,6 +107,13 @@ struct global_data {\n \t * GDB using the 'add-symbol-file u-boot <relocaddr>' command.\n \t */\n \tunsigned long relocaddr;\n+\t/**\n+\t * @initial_relocaddr: end of memory currently in use by uboot\n+\t *\n+\t * This should be the original value of relocaddr before any other\n+\t * allocations or reservations shift it.\n+\t */\n+\tunsigned long initial_relocaddr;\n \t/**\n \t * @irq_sp: IRQ stack pointer\n \t */\ndiff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c\nindex 046a2bb4641..ece05c142f0 100644\n--- a/lib/efi_loader/efi_memory.c\n+++ b/lib/efi_loader/efi_memory.c\n@@ -869,7 +869,7 @@ static void add_u_boot_and_runtime(void)\n \t/* Add U-Boot */\n \tuboot_start = ((uintptr_t)map_sysmem(gd->start_addr_sp, 0) -\n \t\t uboot_stack_size) & ~EFI_PAGE_MASK;\n-\tuboot_pages = ((uintptr_t)map_sysmem(gd->ram_top - 1, 0) -\n+\tuboot_pages = ((uintptr_t)map_sysmem(gd->initial_relocaddr, 0) -\n \t\t uboot_start + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;\n \tefi_update_memory_map(uboot_start, uboot_pages, EFI_BOOT_SERVICES_CODE,\n \t\t\t false, false);\ndiff --git a/lib/lmb.c b/lib/lmb.c\nindex 9a8c70b778a..e5d4d726ab1 100644\n--- a/lib/lmb.c\n+++ b/lib/lmb.c\n@@ -534,46 +534,19 @@ static long lmb_reserve(phys_addr_t base, phys_size_t size, u32 flags)\n \n static void lmb_reserve_uboot_region(void)\n {\n-\tint bank;\n-\tulong end, bank_end;\n+\tulong size;\n \tphys_addr_t rsv_start;\n-\tulong pram = 0;\n \n \trsv_start = gd->start_addr_sp - CONFIG_STACK_SIZE;\n-\tend = gd->ram_top;\n+\tsize = gd->initial_relocaddr - rsv_start;\n \n-\t/*\n-\t * Reserve memory from aligned address below the bottom of U-Boot stack\n-\t * until end of RAM area to prevent LMB from overwriting that memory.\n-\t */\n-\tdebug(\"## Current stack ends at 0x%08lx \", (ulong)rsv_start);\n+\tdebug(\"## Current stack ends at 0x%08lx\\n\", (ulong)rsv_start);\n \n-#ifdef CFG_PRAM\n-\tpram = env_get_ulong(\"pram\", 10, CFG_PRAM);\n-\tpram = pram << 10; /* size is in kB */\n-#endif\n-\n-\tfor (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {\n-\t\tif (!gd->bd->bi_dram[bank].size ||\n-\t\t rsv_start < gd->bd->bi_dram[bank].start)\n-\t\t\tcontinue;\n-\t\t/* Watch out for RAM at end of address space! */\n-\t\tbank_end = gd->bd->bi_dram[bank].start +\n-\t\t\tgd->bd->bi_dram[bank].size - 1;\n-\t\tif (rsv_start > bank_end)\n-\t\t\tcontinue;\n-\t\tif (bank_end > end)\n-\t\t\tbank_end = end - 1;\n+\tlmb_reserve(rsv_start, size, LMB_NOOVERWRITE);\n \n-\t\tlmb_reserve(rsv_start, bank_end - rsv_start - pram + 1,\n+\tif (gd->flags & GD_FLG_SKIP_RELOC)\n+\t\tlmb_reserve((phys_addr_t)(uintptr_t)_start, gd->mon_len,\n \t\t\t LMB_NOOVERWRITE);\n-\n-\t\tif (gd->flags & GD_FLG_SKIP_RELOC)\n-\t\t\tlmb_reserve((phys_addr_t)(uintptr_t)_start,\n-\t\t\t\t gd->mon_len, LMB_NOOVERWRITE);\n-\n-\t\tbreak;\n-\t}\n }\n \n static void lmb_reserve_common(void *fdt_blob)\n", "prefixes": [ "PATCHv5", "6/6" ] }