Documentation: Remove CMA's dependency on architecture

CMA only depends on MMU. It doesn't depend on arch too much. such as ARM,
ARM64, X86, MIPS etc. so We remove the dependency of cma about the
architecture in kernel-parameters.txt.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/1600412758-60545-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index b582d47080ab3e49544b77dbecc0b942064d21fb..039067bca3fa9c02d23badabc11692265644f904 100644 (file)
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -591,7 +591,7 @@
                        some critical bits.
 
        cma=nn[MG]@[start[MG][-end[MG]]]
-                       [ARM,X86,KNL]
+                       [KNL,CMA]
                        Sets the size of kernel global memory area for
                        contiguous memory allocations and optionally the
                        placement constraint by the physical address range of