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sparc64: #blocks disk node method

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Return the 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, the #blocks method returns the maximum unsigned integer
(which, because of Open Firmware's assumption of two's complement arithmetic,
is equivalent to the signed number -1). If the number of blocks exceeds
the range of an unsigned number, return 0 to alert the caller to try
the #blocks64 command.

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Eric Snowberg authored and Daniel Kiper committed 2018-03-05 15:12:35 +01:00
1 parent ad6d8f5063
commit ab4c93cb4b
2 files changed
+32
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include/grub/sparc64/ieee1275/ieee1275.h
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@@ -42,6 +42,7 @@ extern int EXPORT_FUNC(grub_ieee1275_claim_vaddr) (grub_addr_t vaddr,
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_addr_t EXPORT_VAR (grub_ieee1275_original_stack);