From patchwork Tue Nov 21 15:27:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heinrich Schuchardt X-Patchwork-Id: 1866896 X-Patchwork-Delegate: uboot@andestech.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=canonical.com header.i=@canonical.com header.a=rsa-sha256 header.s=20210705 header.b=e8xmYRdw; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=patchwork.ozlabs.org) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SZSvQ2lQDz1yRg for ; Wed, 22 Nov 2023 02:28:34 +1100 (AEDT) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 8BFA487613; Tue, 21 Nov 2023 16:28:11 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=canonical.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=canonical.com header.i=@canonical.com header.b="e8xmYRdw"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id A415A8760C; Tue, 21 Nov 2023 16:28:09 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.2 Received: from smtp-relay-canonical-1.canonical.com (smtp-relay-canonical-1.canonical.com [185.125.188.121]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 2F0A98760D for ; Tue, 21 Nov 2023 16:28:06 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=canonical.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=heinrich.schuchardt@canonical.com Received: from LT2ubnt.fritz.box (ip-178-202-040-247.um47.pools.vodafone-ip.de [178.202.40.247]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-1.canonical.com (Postfix) with ESMTPSA id 8B635423EA; Tue, 21 Nov 2023 15:27:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1700580479; bh=tHV4iavIKWCFYOF1M/C9f5Z+2PqJDNv4uy9HYuxrrhA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=e8xmYRdwQldBNbOiioFAA8TDBfo9Rz/FgkbNjI0SR4qk/INph4MWqRSzAjvp15bK9 sIeu3uXORoowTfkxdgPulamIvvyDP75Q+wiQlkfAK+CQQhricRifcI5o/SQshbFTzK IiDeYcgQBikW8wfBf479+kcVLZvLIFj9HQcPSbIicIu2XCC5IG0RYReXayrcFtd5Ej ArTMxJC5tb/9nlX6MxGC0oapIZCv2G5EraMrZM6TZzqLLR1VGaVyJql53XGUm2nQpC EFGFnL/rRsxcNfvf2wkMc9ZKj4Z1o82VviuyKHeEdILr2tnTdXNBkiXtqZ85LI2/wK KjC88896SaurA== From: Heinrich Schuchardt To: Leo , Rick Chen , Simon Glass , Bin Meng Cc: Yu Chien Peter Lin , Ilias Apalodimas , Miao Yan , Asherah Connor , Tom Rini , u-boot@lists.denx.de, Heinrich Schuchardt Subject: [PATCH v2 2/7] acpi: carve out qfw_acpi.c Date: Tue, 21 Nov 2023 16:27:35 +0100 Message-Id: <20231121152740.24783-3-heinrich.schuchardt@canonical.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231121152740.24783-1-heinrich.schuchardt@canonical.com> References: <20231121152740.24783-1-heinrich.schuchardt@canonical.com> MIME-Version: 1.0 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 Move the code related to copying tables from QEMU to a separate code module. Signed-off-by: Heinrich Schuchardt Reviewed-by: Tom Rini Reviewed-by: Simon Glass --- v2: new patch --- drivers/misc/Makefile | 1 + drivers/misc/qfw.c | 240 ------------------------------------- drivers/misc/qfw_acpi.c | 256 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 257 insertions(+), 240 deletions(-) create mode 100644 drivers/misc/qfw_acpi.c diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index b67b82358a..cda701d38e 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -63,6 +63,7 @@ obj-$(CONFIG_$(SPL_)PWRSEQ) += pwrseq-uclass.o obj-$(CONFIG_QCOM_GENI_SE) += qcom-geni-se.o ifdef CONFIG_QFW obj-y += qfw.o +obj-$(CONFIG_QFW_ACPI) += qfw_acpi.o obj-$(CONFIG_QFW_PIO) += qfw_pio.o obj-$(CONFIG_QFW_MMIO) += qfw_mmio.o obj-$(CONFIG_SANDBOX) += qfw_sandbox.o diff --git a/drivers/misc/qfw.c b/drivers/misc/qfw.c index 307334faf4..db98619fdf 100644 --- a/drivers/misc/qfw.c +++ b/drivers/misc/qfw.c @@ -21,246 +21,6 @@ #include #include -#ifdef QFW_ACPI -/* - * This function allocates memory for ACPI tables - * - * @entry : BIOS linker command entry which tells where to allocate memory - * (either high memory or low memory) - * @addr : The address that should be used for low memory allcation. If the - * memory allocation request is 'ZONE_HIGH' then this parameter will - * be ignored. - * @return: 0 on success, or negative value on failure - */ -static int bios_linker_allocate(struct udevice *dev, - struct bios_linker_entry *entry, ulong *addr) -{ - uint32_t size, align; - struct fw_file *file; - unsigned long aligned_addr; - - align = le32_to_cpu(entry->alloc.align); - /* align must be power of 2 */ - if (align & (align - 1)) { - printf("error: wrong alignment %u\n", align); - return -EINVAL; - } - - file = qfw_find_file(dev, entry->alloc.file); - if (!file) { - printf("error: can't find file %s\n", entry->alloc.file); - return -ENOENT; - } - - size = be32_to_cpu(file->cfg.size); - - /* - * ZONE_HIGH means we need to allocate from high memory, since - * malloc space is already at the end of RAM, so we directly use it. - * If allocation zone is ZONE_FSEG, then we use the 'addr' passed - * in which is low memory - */ - if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH) { - aligned_addr = (unsigned long)memalign(align, size); - if (!aligned_addr) { - printf("error: allocating resource\n"); - return -ENOMEM; - } - if (aligned_addr < gd->arch.table_start_high) - gd->arch.table_start_high = aligned_addr; - if (aligned_addr + size > gd->arch.table_end_high) - gd->arch.table_end_high = aligned_addr + size; - - } else if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) { - aligned_addr = ALIGN(*addr, align); - } else { - printf("error: invalid allocation zone\n"); - return -EINVAL; - } - - debug("bios_linker_allocate: allocate file %s, size %u, zone %d, align %u, addr 0x%lx\n", - file->cfg.name, size, entry->alloc.zone, align, aligned_addr); - - qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size, - (void *)aligned_addr); - file->addr = aligned_addr; - - /* adjust address for low memory allocation */ - if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) - *addr = (aligned_addr + size); - - return 0; -} - -/* - * This function patches ACPI tables previously loaded - * by bios_linker_allocate() - * - * @entry : BIOS linker command entry which tells how to patch - * ACPI tables - * @return: 0 on success, or negative value on failure - */ -static int bios_linker_add_pointer(struct udevice *dev, - struct bios_linker_entry *entry) -{ - struct fw_file *dest, *src; - uint32_t offset = le32_to_cpu(entry->pointer.offset); - uint64_t pointer = 0; - - dest = qfw_find_file(dev, entry->pointer.dest_file); - if (!dest || !dest->addr) - return -ENOENT; - src = qfw_find_file(dev, entry->pointer.src_file); - if (!src || !src->addr) - return -ENOENT; - - debug("bios_linker_add_pointer: dest->addr 0x%lx, src->addr 0x%lx, offset 0x%x size %u, 0x%llx\n", - dest->addr, src->addr, offset, entry->pointer.size, pointer); - - memcpy(&pointer, (char *)dest->addr + offset, entry->pointer.size); - pointer = le64_to_cpu(pointer); - pointer += (unsigned long)src->addr; - pointer = cpu_to_le64(pointer); - memcpy((char *)dest->addr + offset, &pointer, entry->pointer.size); - - return 0; -} - -/* - * This function updates checksum fields of ACPI tables previously loaded - * by bios_linker_allocate() - * - * @entry : BIOS linker command entry which tells where to update ACPI table - * checksums - * @return: 0 on success, or negative value on failure - */ -static int bios_linker_add_checksum(struct udevice *dev, - struct bios_linker_entry *entry) -{ - struct fw_file *file; - uint8_t *data, cksum = 0; - uint8_t *cksum_start; - - file = qfw_find_file(dev, entry->cksum.file); - if (!file || !file->addr) - return -ENOENT; - - data = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.offset)); - cksum_start = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.start)); - cksum = table_compute_checksum(cksum_start, - le32_to_cpu(entry->cksum.length)); - *data = cksum; - - return 0; -} - -/* This function loads and patches ACPI tables provided by QEMU */ -ulong write_acpi_tables(ulong addr) -{ - int i, ret; - struct fw_file *file; - struct bios_linker_entry *table_loader; - struct bios_linker_entry *entry; - uint32_t size; - struct udevice *dev; - - ret = qfw_get_dev(&dev); - if (ret) { - printf("error: no qfw\n"); - return addr; - } - - /* make sure fw_list is loaded */ - ret = qfw_read_firmware_list(dev); - if (ret) { - printf("error: can't read firmware file list\n"); - return addr; - } - - file = qfw_find_file(dev, "etc/table-loader"); - if (!file) { - printf("error: can't find etc/table-loader\n"); - return addr; - } - - size = be32_to_cpu(file->cfg.size); - if ((size % sizeof(*entry)) != 0) { - printf("error: table-loader maybe corrupted\n"); - return addr; - } - - table_loader = malloc(size); - if (!table_loader) { - printf("error: no memory for table-loader\n"); - return addr; - } - - /* QFW always puts tables at high addresses */ - gd->arch.table_start_high = (ulong)table_loader; - gd->arch.table_end_high = (ulong)table_loader; - - qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size, table_loader); - - for (i = 0; i < (size / sizeof(*entry)); i++) { - entry = table_loader + i; - switch (le32_to_cpu(entry->command)) { - case BIOS_LINKER_LOADER_COMMAND_ALLOCATE: - ret = bios_linker_allocate(dev, entry, &addr); - if (ret) - goto out; - break; - case BIOS_LINKER_LOADER_COMMAND_ADD_POINTER: - ret = bios_linker_add_pointer(dev, entry); - if (ret) - goto out; - break; - case BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM: - ret = bios_linker_add_checksum(dev, entry); - if (ret) - goto out; - break; - default: - break; - } - } - -out: - if (ret) { - struct fw_cfg_file_iter iter; - for (file = qfw_file_iter_init(dev, &iter); - !qfw_file_iter_end(&iter); - file = qfw_file_iter_next(&iter)) { - if (file->addr) { - free((void *)file->addr); - file->addr = 0; - } - } - } - - free(table_loader); - - gd_set_acpi_start(acpi_get_rsdp_addr()); - - return addr; -} - -ulong acpi_get_rsdp_addr(void) -{ - int ret; - struct fw_file *file; - struct udevice *dev; - - ret = qfw_get_dev(&dev); - if (ret) { - printf("error: no qfw\n"); - return 0; - } - - file = qfw_find_file(dev, "etc/acpi/rsdp"); - return file->addr; -} -#endif /* QFW_ACPI */ - static void qfw_read_entry_io(struct qfw_dev *qdev, u16 entry, u32 size, void *address) { diff --git a/drivers/misc/qfw_acpi.c b/drivers/misc/qfw_acpi.c new file mode 100644 index 0000000000..6e14b2a504 --- /dev/null +++ b/drivers/misc/qfw_acpi.c @@ -0,0 +1,256 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2015 Miao Yan + * (C) Copyright 2021 Asherah Connor + */ + +#define LOG_CATEGORY UCLASS_QFW + +#include +#include +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +/* + * This function allocates memory for ACPI tables + * + * @entry : BIOS linker command entry which tells where to allocate memory + * (either high memory or low memory) + * @addr : The address that should be used for low memory allcation. If the + * memory allocation request is 'ZONE_HIGH' then this parameter will + * be ignored. + * @return: 0 on success, or negative value on failure + */ +static int bios_linker_allocate(struct udevice *dev, + struct bios_linker_entry *entry, ulong *addr) +{ + uint32_t size, align; + struct fw_file *file; + unsigned long aligned_addr; + + align = le32_to_cpu(entry->alloc.align); + /* align must be power of 2 */ + if (align & (align - 1)) { + printf("error: wrong alignment %u\n", align); + return -EINVAL; + } + + file = qfw_find_file(dev, entry->alloc.file); + if (!file) { + printf("error: can't find file %s\n", entry->alloc.file); + return -ENOENT; + } + + size = be32_to_cpu(file->cfg.size); + + /* + * ZONE_HIGH means we need to allocate from high memory, since + * malloc space is already at the end of RAM, so we directly use it. + * If allocation zone is ZONE_FSEG, then we use the 'addr' passed + * in which is low memory + */ + if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH) { + aligned_addr = (unsigned long)memalign(align, size); + if (!aligned_addr) { + printf("error: allocating resource\n"); + return -ENOMEM; + } + if (aligned_addr < gd->arch.table_start_high) + gd->arch.table_start_high = aligned_addr; + if (aligned_addr + size > gd->arch.table_end_high) + gd->arch.table_end_high = aligned_addr + size; + + } else if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) { + aligned_addr = ALIGN(*addr, align); + } else { + printf("error: invalid allocation zone\n"); + return -EINVAL; + } + + debug("bios_linker_allocate: allocate file %s, size %u, zone %d, align %u, addr 0x%lx\n", + file->cfg.name, size, entry->alloc.zone, align, aligned_addr); + + qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size, + (void *)aligned_addr); + file->addr = aligned_addr; + + /* adjust address for low memory allocation */ + if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) + *addr = (aligned_addr + size); + + return 0; +} + +/* + * This function patches ACPI tables previously loaded + * by bios_linker_allocate() + * + * @entry : BIOS linker command entry which tells how to patch + * ACPI tables + * @return: 0 on success, or negative value on failure + */ +static int bios_linker_add_pointer(struct udevice *dev, + struct bios_linker_entry *entry) +{ + struct fw_file *dest, *src; + uint32_t offset = le32_to_cpu(entry->pointer.offset); + uint64_t pointer = 0; + + dest = qfw_find_file(dev, entry->pointer.dest_file); + if (!dest || !dest->addr) + return -ENOENT; + src = qfw_find_file(dev, entry->pointer.src_file); + if (!src || !src->addr) + return -ENOENT; + + debug("bios_linker_add_pointer: dest->addr 0x%lx, src->addr 0x%lx, offset 0x%x size %u, 0x%llx\n", + dest->addr, src->addr, offset, entry->pointer.size, pointer); + + memcpy(&pointer, (char *)dest->addr + offset, entry->pointer.size); + pointer = le64_to_cpu(pointer); + pointer += (unsigned long)src->addr; + pointer = cpu_to_le64(pointer); + memcpy((char *)dest->addr + offset, &pointer, entry->pointer.size); + + return 0; +} + +/* + * This function updates checksum fields of ACPI tables previously loaded + * by bios_linker_allocate() + * + * @entry : BIOS linker command entry which tells where to update ACPI table + * checksums + * @return: 0 on success, or negative value on failure + */ +static int bios_linker_add_checksum(struct udevice *dev, + struct bios_linker_entry *entry) +{ + struct fw_file *file; + uint8_t *data, cksum = 0; + uint8_t *cksum_start; + + file = qfw_find_file(dev, entry->cksum.file); + if (!file || !file->addr) + return -ENOENT; + + data = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.offset)); + cksum_start = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.start)); + cksum = table_compute_checksum(cksum_start, + le32_to_cpu(entry->cksum.length)); + *data = cksum; + + return 0; +} + +/* This function loads and patches ACPI tables provided by QEMU */ +ulong write_acpi_tables(ulong addr) +{ + int i, ret; + struct fw_file *file; + struct bios_linker_entry *table_loader; + struct bios_linker_entry *entry; + uint32_t size; + struct udevice *dev; + + ret = qfw_get_dev(&dev); + if (ret) { + printf("error: no qfw\n"); + return addr; + } + + /* make sure fw_list is loaded */ + ret = qfw_read_firmware_list(dev); + if (ret) { + printf("error: can't read firmware file list\n"); + return addr; + } + + file = qfw_find_file(dev, "etc/table-loader"); + if (!file) { + printf("error: can't find etc/table-loader\n"); + return addr; + } + + size = be32_to_cpu(file->cfg.size); + if ((size % sizeof(*entry)) != 0) { + printf("error: table-loader maybe corrupted\n"); + return addr; + } + + table_loader = malloc(size); + if (!table_loader) { + printf("error: no memory for table-loader\n"); + return addr; + } + + /* QFW always puts tables at high addresses */ + gd->arch.table_start_high = (ulong)table_loader; + gd->arch.table_end_high = (ulong)table_loader; + + qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size, table_loader); + + for (i = 0; i < (size / sizeof(*entry)); i++) { + entry = table_loader + i; + switch (le32_to_cpu(entry->command)) { + case BIOS_LINKER_LOADER_COMMAND_ALLOCATE: + ret = bios_linker_allocate(dev, entry, &addr); + if (ret) + goto out; + break; + case BIOS_LINKER_LOADER_COMMAND_ADD_POINTER: + ret = bios_linker_add_pointer(dev, entry); + if (ret) + goto out; + break; + case BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM: + ret = bios_linker_add_checksum(dev, entry); + if (ret) + goto out; + break; + default: + break; + } + } + +out: + if (ret) { + struct fw_cfg_file_iter iter; + for (file = qfw_file_iter_init(dev, &iter); + !qfw_file_iter_end(&iter); + file = qfw_file_iter_next(&iter)) { + if (file->addr) { + free((void *)file->addr); + file->addr = 0; + } + } + } + + free(table_loader); + + gd_set_acpi_start(acpi_get_rsdp_addr()); + + return addr; +} + +ulong acpi_get_rsdp_addr(void) +{ + int ret; + struct fw_file *file; + struct udevice *dev; + + ret = qfw_get_dev(&dev); + if (ret) { + printf("error: no qfw\n"); + return 0; + } + + file = qfw_find_file(dev, "etc/acpi/rsdp"); + return file->addr; +}