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| author | AKASHI Takahiro <takahiro.akashi@linaro.org> | 2022-04-19 10:05:17 +0900 |
|---|---|---|
| committer | Heinrich Schuchardt <heinrich.schuchardt@canonical.com> | 2022-04-23 22:05:41 +0200 |
| commit | d97e98c887ed8fa4a339350c02f093f03cd1cf4d (patch) | |
| tree | 0ee210084cbd8b3f9bc1b193a4f073d2b0065d6f | |
| parent | 59da9d4782cd9c28d6b679e86596152b54222538 (diff) | |
| download | u-boot-d97e98c887ed8fa4a339350c02f093f03cd1cf4d.zip u-boot-d97e98c887ed8fa4a339350c02f093f03cd1cf4d.tar.gz u-boot-d97e98c887ed8fa4a339350c02f093f03cd1cf4d.tar.bz2 | |
efi_loader: disk: use udevice instead of blk_desc
In most of all cases, we can avoid using blk_desc which is expected
to be private to udevice(UCLASS_BLK), that is, the data should not
be manipulated outside the device driver unless really needed.
Now efi_disk's internally use dev_read/write() interfaces
if CONFIG_PARTITIONS is enabled.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | lib/efi_loader/efi_disk.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c index 34bb662..8fb5b23 100644 --- a/lib/efi_loader/efi_disk.c +++ b/lib/efi_loader/efi_disk.c @@ -36,7 +36,7 @@ const efi_guid_t efi_system_partition_guid = PARTITION_SYSTEM_GUID; * @part: partition * @volume: simple file system protocol of the partition * @offset: offset into disk for simple partition - * @desc: internal block device descriptor + * @dev: associated DM device */ struct efi_disk_obj { struct efi_object header; @@ -48,7 +48,7 @@ struct efi_disk_obj { unsigned int part; struct efi_simple_file_system_protocol *volume; lbaint_t offset; - struct blk_desc *desc; + struct udevice *dev; /* TODO: move it to efi_object */ }; /** @@ -83,14 +83,12 @@ static efi_status_t efi_disk_rw_blocks(struct efi_block_io *this, void *buffer, enum efi_disk_direction direction) { struct efi_disk_obj *diskobj; - struct blk_desc *desc; int blksz; int blocks; unsigned long n; diskobj = container_of(this, struct efi_disk_obj, ops); - desc = (struct blk_desc *) diskobj->desc; - blksz = desc->blksz; + blksz = diskobj->media.block_size; blocks = buffer_size / blksz; lba += diskobj->offset; @@ -101,10 +99,21 @@ static efi_status_t efi_disk_rw_blocks(struct efi_block_io *this, if (buffer_size & (blksz - 1)) return EFI_BAD_BUFFER_SIZE; +#if CONFIG_IS_ENABLED(PARTITIONS) + if (direction == EFI_DISK_READ) + n = dev_read(diskobj->dev, lba, blocks, buffer); + else + n = dev_write(diskobj->dev, lba, blocks, buffer); +#else + /* dev is always a block device (UCLASS_BLK) */ + struct blk_desc *desc; + + desc = dev_get_uclass_plat(diskobj->dev); if (direction == EFI_DISK_READ) n = blk_dread(desc, lba, blocks, buffer); else n = blk_dwrite(desc, lba, blocks, buffer); +#endif /* We don't do interrupts, so check for timers cooperatively */ efi_timer_check(); @@ -446,7 +455,6 @@ static efi_status_t efi_disk_add_dev( diskobj->ops = block_io_disk_template; diskobj->ifname = if_typename; diskobj->dev_index = dev_index; - diskobj->desc = desc; /* Fill in EFI IO Media info (for read/write callbacks) */ diskobj->media.removable_media = desc->removable; @@ -522,6 +530,7 @@ static int efi_disk_create_raw(struct udevice *dev) return -1; } + disk->dev = dev; if (dev_tag_set_ptr(dev, DM_TAG_EFI, &disk->header)) { efi_free_pool(disk->dp); efi_delete_handle(&disk->header); @@ -578,6 +587,7 @@ static int efi_disk_create_part(struct udevice *dev) log_err("Adding partition for %s failed\n", dev->name); return -1; } + disk->dev = dev; if (dev_tag_set_ptr(dev, DM_TAG_EFI, &disk->header)) { efi_free_pool(disk->dp); efi_delete_handle(&disk->header); |