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[89.210.121.239]) by smtp.gmail.com with ESMTPSA id u12-20020a056402110c00b0054c9211021csm10619772edv.69.2023.12.28.23.33.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Dec 2023 23:33:42 -0800 (PST) Date: Fri, 29 Dec 2023 09:33:39 +0200 From: Ilias Apalodimas To: Heinrich Schuchardt Cc: Simon Glass , Rick Chen , Leo , Tuomas Tynkkynen , Bin Meng , u-boot@lists.denx.de, Tom Rini Subject: Re: [PATCH v4 2/9] acpi: carve out qfw_acpi.c Message-ID: References: <20231219150408.10949-1-heinrich.schuchardt@canonical.com> <20231219150408.10949-3-heinrich.schuchardt@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231219150408.10949-3-heinrich.schuchardt@canonical.com> 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 On Tue, Dec 19, 2023 at 04:04:01PM +0100, Heinrich Schuchardt wrote: > 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 > --- > v4: > no change > v3: > no change > v2: > add missing blank line > --- > 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 Reviewed-by: Ilias Apalodimas > > 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; > +} > -- > 2.40.1 >