Documentation/admin-guide: mark memmap parameter is supported by a few architectures

early_param memmap is only implemented on X86, MIPS and XTENSA. To avoid
wasting users’ time on trying this on platform like ARM, mark it clearly.

Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/20201128195121.2556-1-song.bao.hua@hisilicon.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst
index 6d42169..06fb1b4 100644 (file)
--- a/Documentation/admin-guide/kernel-parameters.rst
+++ b/Documentation/admin-guide/kernel-parameters.rst
@@ -172,6 +172,7 @@ parameter is applicable::
        X86     Either 32-bit or 64-bit x86 (same as X86-32+X86-64)
        X86_UV  SGI UV support is enabled.
        XEN     Xen support is enabled
+       XTENSA  xtensa architecture is enabled.
 
 In addition, the following text indicates that the option::
 

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 526d65d..8bdbc55 100644 (file)
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2709,7 +2709,7 @@
                        option description.
 
        memmap=nn[KMG]@ss[KMG]
-                       [KNL] Force usage of a specific region of memory.
+                       [KNL, X86, MIPS, XTENSA] Force usage of a specific region of memory.
                        Region of memory to be used is from ss to ss+nn.
                        If @ss[KMG] is omitted, it is equivalent to mem=nn[KMG],
                        which limits max address to nn[KMG].