Commit bc47190d authored by Randy Dunlap's avatar Randy Dunlap Committed by Jonathan Corbet
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Documentation/admin-guide: kernel-parameters: update CMA entries 



Add qualifying build option legend [CMA] to kernel boot options
that requirce CMA support to be enabled for them to be usable.

Also capitalize 'CMA' when it is used as an acronym.

Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Acked-by: default avatarMike Kravetz <mike.kravetz@oracle.com>
Link: https://lore.kernel.org/r/20210125043202.22399-1-rdunlap@infradead.org


Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 5d2699d2

Documentation/admin-guide/kernel-parameters.txt

+4 −4
Original line number Diff line number Diff line
@@ -600,7 +600,7 @@ 
			kernel/dma/contiguous.c



	cma_pernuma=nn[MG]

			[ARM64,KNL]

			[ARM64,KNL,CMA]

			Sets the size of kernel per-numa memory area for

			contiguous memory allocations. A value of 0 disables

			per-numa CMA altogether. And If this option is not
@@ -1524,12 +1524,12 @@ 
	hpet_mmap=	[X86, HPET_MMAP] Allow userspace to mmap HPET

			registers.  Default set by CONFIG_HPET_MMAP_DEFAULT.



	hugetlb_cma=	[HW] The size of a cma area used for allocation

	hugetlb_cma=	[HW,CMA] The size of a CMA area used for allocation

			of gigantic hugepages.

			Format: nn[KMGTPE]



			Reserve a cma area of given size and allocate gigantic

			hugepages using the cma allocator. If enabled, the

			Reserve a CMA area of given size and allocate gigantic

			hugepages using the CMA allocator. If enabled, the

			boot-time allocation of gigantic hugepages is skipped.



	hugepages=	[HW] Number of HugeTLB pages to allocate at boot.