drivers: add Contiguous Memory Allocator

[deliverable/linux.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index c1601e5a8b71e81ae57f7d1d5a70be5449501443..669e8bb52b94f8f1059f55c1764cd22a58c08afc 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -508,6 +508,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        Also note the kernel might malfunction if you disable
                        some critical bits.
 
                        Also note the kernel might malfunction if you disable
                        some critical bits.
 

+       cma=nn[MG]      [ARM,KNL]
+                       Sets the size of kernel global memory area for contiguous
+                       memory allocations. For more information, see
+                       include/linux/dma-contiguous.h
+

        cmo_free_hint=  [PPC] Format: { yes | no }
                        Specify whether pages are marked as being inactive
                        when they are freed.  This is used in CMO environments
        cmo_free_hint=  [PPC] Format: { yes | no }
                        Specify whether pages are marked as being inactive
                        when they are freed.  This is used in CMO environments