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GET /api/patches/1965621/?format=api
{ "id": 1965621, "url": "http://patchwork.ozlabs.org/api/patches/1965621/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20240727071742.1735703-16-patrick.rudolph@9elements.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": "<20240727071742.1735703-16-patrick.rudolph@9elements.com>", "list_archive_url": null, "date": "2024-07-27T07:17:16", "name": "[15/17] arm: mach-bcm283x: Add ARMV8_MULTIENTRY support", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": false, "hash": "81bcd33d87e6c971b174e0dc7564257ff8bc7574", "submitter": { "id": 83069, "url": "http://patchwork.ozlabs.org/api/people/83069/?format=api", "name": "Patrick Rudolph", "email": "patrick.rudolph@9elements.com" }, "delegate": { "id": 3184, "url": "http://patchwork.ozlabs.org/api/users/3184/?format=api", "username": "sjg", "first_name": "Simon", "last_name": "Glass", "email": "sjg@chromium.org" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20240727071742.1735703-16-patrick.rudolph@9elements.com/mbox/", "series": [ { "id": 416851, "url": "http://patchwork.ozlabs.org/api/series/416851/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=416851", "date": "2024-07-27T07:17:01", "name": "Implement ACPI on aarch64", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/416851/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1965621/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1965621/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 (2048-bit key;\n secure) header.d=9elements.com header.i=@9elements.com header.a=rsa-sha256\n header.s=google header.b=fSnYj3aG;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=85.214.62.61; helo=phobos.denx.de;\n envelope-from=u-boot-bounces@lists.denx.de; receiver=patchwork.ozlabs.org)", "phobos.denx.de;\n dmarc=pass (p=quarantine dis=none) header.from=9elements.com", "phobos.denx.de;\n spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de", "phobos.denx.de;\n\tdkim=pass (2048-bit key;\n secure) header.d=9elements.com header.i=@9elements.com header.b=\"fSnYj3aG\";\n\tdkim-atps=neutral", "phobos.denx.de; dmarc=pass (p=quarantine dis=none)\n header.from=9elements.com", "phobos.denx.de;\n spf=pass smtp.mailfrom=patrick.rudolph@9elements.com" ], "Received": [ "from phobos.denx.de (phobos.denx.de [85.214.62.61])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange X25519 server-signature ECDSA (secp384r1))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4WWGL70qZPz1yY3\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 27 Jul 2024 17:22:55 +1000 (AEST)", "from h2850616.stratoserver.net (localhost [IPv6:::1])\n\tby phobos.denx.de (Postfix) with ESMTP id F2333887F5;\n\tSat, 27 Jul 2024 09:20:40 +0200 (CEST)", "by phobos.denx.de (Postfix, from userid 109)\n id 41F09887BE; Sat, 27 Jul 2024 09:20:39 +0200 (CEST)", "from mail-ej1-x62c.google.com (mail-ej1-x62c.google.com\n [IPv6:2a00:1450:4864:20::62c])\n (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits))\n (No client certificate requested)\n by phobos.denx.de (Postfix) with ESMTPS id 2E42088755\n for <u-boot@lists.denx.de>; Sat, 27 Jul 2024 09:20:37 +0200 (CEST)", "by mail-ej1-x62c.google.com with SMTP id\n a640c23a62f3a-a7d26c2297eso229243966b.2\n for <u-boot@lists.denx.de>; Sat, 27 Jul 2024 00:20:37 -0700 (PDT)", "from fedora.sec.9e.network\n (ip-037-049-067-221.um09.pools.vodafone-ip.de. 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The APs must be released out of reset in u-boot and then\nbrought up in an ACPI compliant fashion.\n\nWhen ARMV8_MULTIENTRY is specified the APs are released from reset\nand will enter U-Boot after it has been relocated as well.\n\nBy default ARMV8_MULTIENTRY is not selected, keeping existing behaviour.\n\nTEST: All APs enter U-Boot when run on qemu-system-aarch64\n\nSigned-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>\nCc: Matthias Brugger <mbrugger@suse.com>\nCc: Peter Robinson <pbrobinson@gmail.com>\nCc: Tom Rini <trini@konsulko.com>\n---\n arch/arm/mach-bcm283x/Kconfig | 2 ++\n arch/arm/mach-bcm283x/init.c | 47 +++++++++++++++++++++++++++++++++++\n 2 files changed, 49 insertions(+)", "diff": "diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig\nindex b3287ce8bc..de783aa8f5 100644\n--- a/arch/arm/mach-bcm283x/Kconfig\n+++ b/arch/arm/mach-bcm283x/Kconfig\n@@ -12,6 +12,7 @@ config BCM2836\n config BCM2837\n \tbool \"Broadcom BCM2837 SoC support\"\n \tdepends on ARCH_BCM283X\n+\tselect ARCH_EARLY_INIT_R\n \n config BCM2837_32B\n \tbool \"Broadcom BCM2837 SoC 32-bit support\"\n@@ -29,6 +30,7 @@ config BCM2837_64B\n config BCM2711\n \tbool \"Broadcom BCM2711 SoC support\"\n \tdepends on ARCH_BCM283X\n+\tselect ARCH_EARLY_INIT_R\n \n config BCM2711_32B\n \tbool \"Broadcom BCM2711 SoC 32-bit support\"\ndiff --git a/arch/arm/mach-bcm283x/init.c b/arch/arm/mach-bcm283x/init.c\nindex 80a10f2212..f6ccc76f39 100644\n--- a/arch/arm/mach-bcm283x/init.c\n+++ b/arch/arm/mach-bcm283x/init.c\n@@ -7,6 +7,7 @@\n */\n \n #include <acpi/acpi_table.h>\n+#include <asm-generic/sections.h>\n #include <cpu_func.h>\n #include <init.h>\n #include <dm/device.h>\n@@ -201,6 +202,52 @@ int mach_cpu_init(void)\n \t\t\t\t\t \"brcm,bcm2712-pm\");\n \tif (offset > soc)\n \t\trpi_wdog_base = fdt_get_base_address(gd->fdt_blob, offset);\n+\treturn 0;\n+}\n+\n+int arch_early_init_r(void)\n+{\n+\tint cpus, offset;\n+\tconst char *prop;\n+\tu64 release_addr64;\n+\tuintptr_t *start_address;\n+\n+\tif (CONFIG_IS_ENABLED(ARMV8_MULTIENTRY)) {\n+\t\t/*\n+\t\t * Release CPUs from reset after u-boot has been relocated.\n+\t\t */\n+\t\tcpus = fdt_path_offset(gd->fdt_blob, \"/cpus\");\n+\t\tif (cpus < 0)\n+\t\t\treturn -ENODEV;\n+\n+\t\tfor (offset = fdt_first_subnode(gd->fdt_blob, cpus);\n+\t\t offset >= 0;\n+\t\t offset = fdt_next_subnode(gd->fdt_blob, offset)) {\n+\t\t\tprop = fdt_getprop(gd->fdt_blob, offset, \"device_type\", NULL);\n+\t\t\tif (!prop || strcmp(prop, \"cpu\"))\n+\t\t\t\tcontinue;\n+\n+\t\t\tprop = fdt_getprop(gd->fdt_blob, offset, \"enable-method\", NULL);\n+\t\t\tif (!prop || strcmp(prop, \"spin-table\"))\n+\t\t\t\tcontinue;\n+\n+\t\t\trelease_addr64 = fdtdec_get_uint64(gd->fdt_blob, offset,\n+\t\t\t\t\t\t\t \"cpu-release-addr\", ~0ULL);\n+\t\t\tif (release_addr64 == ~0ULL)\n+\t\t\t\tcontinue;\n+\n+\t\t\t/* Point to U-Boot start */\n+\t\t\tstart_address = (uintptr_t *)(uintptr_t)release_addr64;\n+\t\t\t*start_address = (uintptr_t)_start;\n+\n+\t\t\tif (!CONFIG_IS_ENABLED(SYS_DCACHE_OFF))\n+\t\t\t\tflush_dcache_range(release_addr64,\n+\t\t\t\t\t\t release_addr64 + sizeof(uintptr_t));\n+\t\t\t/* Send an event to wake up the secondary CPU. */\n+\t\t\tasm(\"dsb\tishst\\n\"\n+\t\t\t \"sev\");\n+\t\t}\n+\t}\n \n \treturn 0;\n }\n", "prefixes": [ "15/17" ] }