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sparc64: #blocks64 disk node method

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Return the 64bit number of blocks of storage associated with the device or
instance. Where a "block" is a unit of storage consisting of the number of
bytes returned by the package's "block-size" method. If the size cannot be
determined, or if the number of blocks exceeds the range return -1.

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Eric Snowberg 2018-02-26 17:34:20 -08:00 committed by Daniel Kiper
parent ab4c93cb4b
commit 599efeb622
2 changed files with 26 additions and 0 deletions
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25
grub-core/kern/sparc64/ieee1275/ieee1275.c
View file

@ -120,3 +120,28 @@ grub_ieee1275_num_blocks (grub_ieee1275_ihandle_t ihandle)
return args.blocks;
}
grub_uint64_t
grub_ieee1275_num_blocks64 (grub_ieee1275_ihandle_t ihandle)
{
struct nblocks_args_ieee1275
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t method;
grub_ieee1275_cell_t ihandle;
grub_ieee1275_cell_t catch_result;
grub_ieee1275_cell_t hi_blocks;
grub_ieee1275_cell_t lo_blocks;
}
args;
INIT_IEEE1275_COMMON (&args.common, "call-method", 2, 3);
args.method = (grub_ieee1275_cell_t) "#blocks64";
args.ihandle = ihandle;
args.catch_result = 1;
if ((IEEE1275_CALL_ENTRY_FN (&args) == -1) || (args.catch_result != 0))
return -1;
return ((args.hi_blocks << 32) | (args.lo_blocks));
}

1
include/grub/sparc64/ieee1275/ieee1275.h
View file

@ -43,6 +43,7 @@ extern int EXPORT_FUNC(grub_ieee1275_alloc_physmem) (grub_addr_t *paddr,
grub_size_t size,
grub_uint32_t align);
extern grub_uint64_t EXPORT_FUNC(grub_ieee1275_num_blocks) (grub_uint32_t ihandle);
extern grub_uint64_t EXPORT_FUNC(grub_ieee1275_num_blocks64) (grub_uint32_t ihandle);
extern grub_addr_t EXPORT_VAR (grub_ieee1275_original_stack);