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Commit e7467dc6 authored by Hari Bathini's avatar Hari Bathini Committed by Michael Ellerman
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powerpc/fadump: Update comment about offset where fadump is reserved 



With commit f6e6bedb ("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: default avatarHari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 81d9eca5

Documentation/powerpc/firmware-assisted-dump.txt

+2 −2
Original line number Diff line number Diff line
@@ -61,8 +61,8 @@ as follows: 
         boot successfully. For syntax of crashkernel= parameter,

         refer to Documentation/kdump/kdump.txt. If any offset is

         provided in crashkernel= parameter, it will be ignored

         as fadump reserves memory at end of RAM for boot memory

         dump preservation in case of a crash.

         as fadump uses a predefined offset to reserve memory

         for boot memory dump preservation in case of a crash.



-- After the low memory (boot memory) area has been saved, the

   firmware will reset PCI and other hardware state.  It will

arch/powerpc/kernel/fadump.c

+2 −2
Original line number Diff line number Diff line
@@ -217,8 +217,8 @@ static inline unsigned long fadump_calculate_reserve_size(void) 


	/*

	 * Check if the size is specified through crashkernel= cmdline

	 * option. If yes, then use that but ignore base as fadump

	 * reserves memory at end of RAM.

	 * option. If yes, then use that but ignore base as fadump reserves

	 * memory at a predefined offset.

	 */

	ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),

				&size, &base);