mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 07:31:15 +00:00
acpi: carve out qfw_acpi.c
Move the code related to copying tables from QEMU to a separate code module. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Heinrich Schuchardt
Simon Glass
parent
b2f088c121
commit
27a66fc3f3
3 changed files with 257 additions and 240 deletions
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@ -63,6 +63,7 @@ obj-$(CONFIG_$(SPL_)PWRSEQ) += pwrseq-uclass.o
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obj-$(CONFIG_QCOM_GENI_SE) += qcom-geni-se.o
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ifdef CONFIG_QFW
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obj-y += qfw.o
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obj-$(CONFIG_QFW_ACPI) += qfw_acpi.o
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obj-$(CONFIG_QFW_PIO) += qfw_pio.o
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obj-$(CONFIG_QFW_MMIO) += qfw_mmio.o
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obj-$(CONFIG_SANDBOX) += qfw_sandbox.o
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@ -21,246 +21,6 @@
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#include <tables_csum.h>
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#include <asm/acpi_table.h>
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#ifdef QFW_ACPI
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/*
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* This function allocates memory for ACPI tables
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*
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* @entry : BIOS linker command entry which tells where to allocate memory
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* (either high memory or low memory)
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* @addr : The address that should be used for low memory allcation. If the
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* memory allocation request is 'ZONE_HIGH' then this parameter will
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* be ignored.
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* @return: 0 on success, or negative value on failure
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*/
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static int bios_linker_allocate(struct udevice *dev,
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struct bios_linker_entry *entry, ulong *addr)
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{
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uint32_t size, align;
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struct fw_file *file;
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unsigned long aligned_addr;
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align = le32_to_cpu(entry->alloc.align);
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/* align must be power of 2 */
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if (align & (align - 1)) {
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printf("error: wrong alignment %u\n", align);
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return -EINVAL;
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}
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file = qfw_find_file(dev, entry->alloc.file);
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if (!file) {
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printf("error: can't find file %s\n", entry->alloc.file);
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return -ENOENT;
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}
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size = be32_to_cpu(file->cfg.size);
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/*
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* ZONE_HIGH means we need to allocate from high memory, since
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* malloc space is already at the end of RAM, so we directly use it.
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* If allocation zone is ZONE_FSEG, then we use the 'addr' passed
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* in which is low memory
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*/
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if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH) {
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aligned_addr = (unsigned long)memalign(align, size);
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if (!aligned_addr) {
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printf("error: allocating resource\n");
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return -ENOMEM;
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}
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if (aligned_addr < gd->arch.table_start_high)
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gd->arch.table_start_high = aligned_addr;
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if (aligned_addr + size > gd->arch.table_end_high)
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gd->arch.table_end_high = aligned_addr + size;
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} else if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) {
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aligned_addr = ALIGN(*addr, align);
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} else {
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printf("error: invalid allocation zone\n");
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return -EINVAL;
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}
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debug("bios_linker_allocate: allocate file %s, size %u, zone %d, align %u, addr 0x%lx\n",
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file->cfg.name, size, entry->alloc.zone, align, aligned_addr);
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qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size,
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(void *)aligned_addr);
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file->addr = aligned_addr;
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/* adjust address for low memory allocation */
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if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG)
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*addr = (aligned_addr + size);
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return 0;
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}
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/*
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* This function patches ACPI tables previously loaded
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* by bios_linker_allocate()
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*
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* @entry : BIOS linker command entry which tells how to patch
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* ACPI tables
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* @return: 0 on success, or negative value on failure
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*/
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static int bios_linker_add_pointer(struct udevice *dev,
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struct bios_linker_entry *entry)
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{
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struct fw_file *dest, *src;
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uint32_t offset = le32_to_cpu(entry->pointer.offset);
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uint64_t pointer = 0;
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dest = qfw_find_file(dev, entry->pointer.dest_file);
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if (!dest || !dest->addr)
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return -ENOENT;
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src = qfw_find_file(dev, entry->pointer.src_file);
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if (!src || !src->addr)
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return -ENOENT;
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debug("bios_linker_add_pointer: dest->addr 0x%lx, src->addr 0x%lx, offset 0x%x size %u, 0x%llx\n",
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dest->addr, src->addr, offset, entry->pointer.size, pointer);
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memcpy(&pointer, (char *)dest->addr + offset, entry->pointer.size);
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pointer = le64_to_cpu(pointer);
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pointer += (unsigned long)src->addr;
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pointer = cpu_to_le64(pointer);
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memcpy((char *)dest->addr + offset, &pointer, entry->pointer.size);
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return 0;
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}
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/*
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* This function updates checksum fields of ACPI tables previously loaded
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* by bios_linker_allocate()
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*
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* @entry : BIOS linker command entry which tells where to update ACPI table
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* checksums
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* @return: 0 on success, or negative value on failure
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*/
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static int bios_linker_add_checksum(struct udevice *dev,
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struct bios_linker_entry *entry)
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{
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struct fw_file *file;
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uint8_t *data, cksum = 0;
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uint8_t *cksum_start;
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file = qfw_find_file(dev, entry->cksum.file);
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if (!file || !file->addr)
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return -ENOENT;
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data = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.offset));
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cksum_start = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.start));
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cksum = table_compute_checksum(cksum_start,
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le32_to_cpu(entry->cksum.length));
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*data = cksum;
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return 0;
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}
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/* This function loads and patches ACPI tables provided by QEMU */
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ulong write_acpi_tables(ulong addr)
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{
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int i, ret;
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struct fw_file *file;
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struct bios_linker_entry *table_loader;
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struct bios_linker_entry *entry;
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uint32_t size;
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struct udevice *dev;
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ret = qfw_get_dev(&dev);
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if (ret) {
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printf("error: no qfw\n");
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return addr;
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}
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/* make sure fw_list is loaded */
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ret = qfw_read_firmware_list(dev);
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if (ret) {
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printf("error: can't read firmware file list\n");
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return addr;
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}
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file = qfw_find_file(dev, "etc/table-loader");
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if (!file) {
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printf("error: can't find etc/table-loader\n");
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return addr;
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}
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size = be32_to_cpu(file->cfg.size);
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if ((size % sizeof(*entry)) != 0) {
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printf("error: table-loader maybe corrupted\n");
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return addr;
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}
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table_loader = malloc(size);
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if (!table_loader) {
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printf("error: no memory for table-loader\n");
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return addr;
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}
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/* QFW always puts tables at high addresses */
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gd->arch.table_start_high = (ulong)table_loader;
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gd->arch.table_end_high = (ulong)table_loader;
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qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size, table_loader);
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for (i = 0; i < (size / sizeof(*entry)); i++) {
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entry = table_loader + i;
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switch (le32_to_cpu(entry->command)) {
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case BIOS_LINKER_LOADER_COMMAND_ALLOCATE:
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ret = bios_linker_allocate(dev, entry, &addr);
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if (ret)
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goto out;
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break;
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case BIOS_LINKER_LOADER_COMMAND_ADD_POINTER:
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ret = bios_linker_add_pointer(dev, entry);
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if (ret)
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goto out;
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break;
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case BIOS_LINKER_LOADER_COMMAND_ADD_CHECKSUM:
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ret = bios_linker_add_checksum(dev, entry);
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if (ret)
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goto out;
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break;
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default:
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break;
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}
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}
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out:
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if (ret) {
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struct fw_cfg_file_iter iter;
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for (file = qfw_file_iter_init(dev, &iter);
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!qfw_file_iter_end(&iter);
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file = qfw_file_iter_next(&iter)) {
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if (file->addr) {
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free((void *)file->addr);
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file->addr = 0;
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}
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}
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}
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free(table_loader);
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gd_set_acpi_start(acpi_get_rsdp_addr());
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return addr;
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}
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ulong acpi_get_rsdp_addr(void)
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{
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int ret;
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struct fw_file *file;
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struct udevice *dev;
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ret = qfw_get_dev(&dev);
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if (ret) {
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printf("error: no qfw\n");
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return 0;
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}
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file = qfw_find_file(dev, "etc/acpi/rsdp");
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return file->addr;
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}
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#endif /* QFW_ACPI */
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static void qfw_read_entry_io(struct qfw_dev *qdev, u16 entry, u32 size,
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void *address)
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{
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256
drivers/misc/qfw_acpi.c
Normal file
256
drivers/misc/qfw_acpi.c
Normal file
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@ -0,0 +1,256 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015 Miao Yan <yanmiaobest@gmail.com>
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* (C) Copyright 2021 Asherah Connor <ashe@kivikakk.ee>
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*/
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#define LOG_CATEGORY UCLASS_QFW
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#include <acpi/acpi_table.h>
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#include <errno.h>
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#include <malloc.h>
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#include <qfw.h>
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#include <tables_csum.h>
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#include <stdio.h>
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#include <asm/byteorder.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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* This function allocates memory for ACPI tables
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*
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* @entry : BIOS linker command entry which tells where to allocate memory
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* (either high memory or low memory)
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* @addr : The address that should be used for low memory allcation. If the
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* memory allocation request is 'ZONE_HIGH' then this parameter will
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* be ignored.
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* @return: 0 on success, or negative value on failure
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*/
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static int bios_linker_allocate(struct udevice *dev,
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struct bios_linker_entry *entry, ulong *addr)
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{
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uint32_t size, align;
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struct fw_file *file;
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unsigned long aligned_addr;
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align = le32_to_cpu(entry->alloc.align);
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/* align must be power of 2 */
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if (align & (align - 1)) {
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printf("error: wrong alignment %u\n", align);
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return -EINVAL;
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}
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file = qfw_find_file(dev, entry->alloc.file);
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if (!file) {
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printf("error: can't find file %s\n", entry->alloc.file);
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return -ENOENT;
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}
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size = be32_to_cpu(file->cfg.size);
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/*
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* ZONE_HIGH means we need to allocate from high memory, since
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* malloc space is already at the end of RAM, so we directly use it.
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* If allocation zone is ZONE_FSEG, then we use the 'addr' passed
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* in which is low memory
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*/
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if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_HIGH) {
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aligned_addr = (unsigned long)memalign(align, size);
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if (!aligned_addr) {
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printf("error: allocating resource\n");
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return -ENOMEM;
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}
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if (aligned_addr < gd->arch.table_start_high)
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gd->arch.table_start_high = aligned_addr;
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if (aligned_addr + size > gd->arch.table_end_high)
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gd->arch.table_end_high = aligned_addr + size;
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} else if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG) {
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aligned_addr = ALIGN(*addr, align);
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} else {
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printf("error: invalid allocation zone\n");
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return -EINVAL;
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}
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debug("bios_linker_allocate: allocate file %s, size %u, zone %d, align %u, addr 0x%lx\n",
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file->cfg.name, size, entry->alloc.zone, align, aligned_addr);
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qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size,
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(void *)aligned_addr);
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file->addr = aligned_addr;
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/* adjust address for low memory allocation */
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if (entry->alloc.zone == BIOS_LINKER_LOADER_ALLOC_ZONE_FSEG)
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*addr = (aligned_addr + size);
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return 0;
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}
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/*
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* This function patches ACPI tables previously loaded
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* by bios_linker_allocate()
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*
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* @entry : BIOS linker command entry which tells how to patch
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* ACPI tables
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* @return: 0 on success, or negative value on failure
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*/
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static int bios_linker_add_pointer(struct udevice *dev,
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struct bios_linker_entry *entry)
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{
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struct fw_file *dest, *src;
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uint32_t offset = le32_to_cpu(entry->pointer.offset);
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uint64_t pointer = 0;
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dest = qfw_find_file(dev, entry->pointer.dest_file);
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if (!dest || !dest->addr)
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return -ENOENT;
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src = qfw_find_file(dev, entry->pointer.src_file);
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if (!src || !src->addr)
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return -ENOENT;
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debug("bios_linker_add_pointer: dest->addr 0x%lx, src->addr 0x%lx, offset 0x%x size %u, 0x%llx\n",
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dest->addr, src->addr, offset, entry->pointer.size, pointer);
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memcpy(&pointer, (char *)dest->addr + offset, entry->pointer.size);
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pointer = le64_to_cpu(pointer);
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pointer += (unsigned long)src->addr;
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pointer = cpu_to_le64(pointer);
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memcpy((char *)dest->addr + offset, &pointer, entry->pointer.size);
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return 0;
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}
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/*
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* This function updates checksum fields of ACPI tables previously loaded
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* by bios_linker_allocate()
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*
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* @entry : BIOS linker command entry which tells where to update ACPI table
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* checksums
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* @return: 0 on success, or negative value on failure
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*/
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static int bios_linker_add_checksum(struct udevice *dev,
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struct bios_linker_entry *entry)
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{
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struct fw_file *file;
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uint8_t *data, cksum = 0;
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uint8_t *cksum_start;
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file = qfw_find_file(dev, entry->cksum.file);
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if (!file || !file->addr)
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return -ENOENT;
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data = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.offset));
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cksum_start = (uint8_t *)(file->addr + le32_to_cpu(entry->cksum.start));
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cksum = table_compute_checksum(cksum_start,
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le32_to_cpu(entry->cksum.length));
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*data = cksum;
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return 0;
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}
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/* This function loads and patches ACPI tables provided by QEMU */
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ulong write_acpi_tables(ulong addr)
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{
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int i, ret;
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struct fw_file *file;
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struct bios_linker_entry *table_loader;
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struct bios_linker_entry *entry;
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uint32_t size;
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struct udevice *dev;
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ret = qfw_get_dev(&dev);
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if (ret) {
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printf("error: no qfw\n");
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return addr;
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}
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/* make sure fw_list is loaded */
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ret = qfw_read_firmware_list(dev);
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if (ret) {
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printf("error: can't read firmware file list\n");
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return addr;
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}
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file = qfw_find_file(dev, "etc/table-loader");
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if (!file) {
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printf("error: can't find etc/table-loader\n");
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return addr;
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}
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size = be32_to_cpu(file->cfg.size);
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if ((size % sizeof(*entry)) != 0) {
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printf("error: table-loader maybe corrupted\n");
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return addr;
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}
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table_loader = malloc(size);
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if (!table_loader) {
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printf("error: no memory for table-loader\n");
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return addr;
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}
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/* QFW always puts tables at high addresses */
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gd->arch.table_start_high = (ulong)table_loader;
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gd->arch.table_end_high = (ulong)table_loader;
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qfw_read_entry(dev, be16_to_cpu(file->cfg.select), size, table_loader);
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for (i = 0; i < (size / sizeof(*entry)); i++) {
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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;
|
||||
}
|
||||
Loading…
Reference in a new issue