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powerpc/fadump: Update comment about offset where fadump is reserved

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With commit f6e6bedb77 ("powerpc/fadump: Reserve memory at an offset
closer to bottom of RAM"), memory for fadump is no longer reserved at
the top of RAM. But there are still a few places which say so. Change
them appropriately.

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Hari Bathini 2017-05-22 15:04:47 +05:30 committed by Michael Ellerman
parent 81d9eca502
commit e7467dc694
2 changed files with 4 additions and 4 deletions
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4
Documentation/powerpc/firmware-assisted-dump.txt
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@ -61,8 +61,8 @@ as follows:
boot successfully. For syntax of crashkernel= parameter, boot successfully. For syntax of crashkernel= parameter,
refer to Documentation/kdump/kdump.txt. If any offset is refer to Documentation/kdump/kdump.txt. If any offset is
provided in crashkernel= parameter, it will be ignored provided in crashkernel= parameter, it will be ignored
as fadump reserves memory at end of RAM for boot memory as fadump uses a predefined offset to reserve memory
dump preservation in case of a crash. for boot memory dump preservation in case of a crash.
-- After the low memory (boot memory) area has been saved, the -- After the low memory (boot memory) area has been saved, the
firmware will reset PCI and other hardware state. It will firmware will reset PCI and other hardware state. It will

4
arch/powerpc/kernel/fadump.c
View File

@ -217,8 +217,8 @@ static inline unsigned long fadump_calculate_reserve_size(void)
/* /*
* Check if the size is specified through crashkernel= cmdline * Check if the size is specified through crashkernel= cmdline
* option. If yes, then use that but ignore base as fadump * option. If yes, then use that but ignore base as fadump reserves
* reserves memory at end of RAM. * memory at a predefined offset.
*/ */
ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(), ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
&size, &base); &size, &base);