> -----Original Message----- > From: Tian Tao [mailto:tiantao6@xxxxxxxxxxxxx] > Sent: Friday, September 18, 2020 3:16 PM > To: corbet@xxxxxxx; keescook@xxxxxxxxxxxx; anton@xxxxxxxxxx; > ccross@xxxxxxxxxxx; tony.luck@xxxxxxxxx; paulmck@xxxxxxxxxx; > tglx@xxxxxxxxxxxxx; akpm@xxxxxxxxxxxxxxxxxxxx; bp@xxxxxxx; > mchehab+huawei@xxxxxxxxxx; pawan.kumar.gupta@xxxxxxxxxxxxxxx; > rdunlap@xxxxxxxxxxxxx; mike.kravetz@xxxxxxxxxx; oneukum@xxxxxxxx; > gpiccoli@xxxxxxxxxxxxx; linux-doc@xxxxxxxxxxxxxxx > Cc: Linuxarm <linuxarm@xxxxxxxxxx> > Subject: [PATCH] Documentation: arm64 supports cma > > arm64 also supports cma, updated documentation. > > Signed-off-by: Tian Tao <tiantao6@xxxxxxxxxxxxx> > --- > Documentation/admin-guide/kernel-parameters.txt | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt > b/Documentation/admin-guide/kernel-parameters.txt > index 7ebe3be..38a1602 100644 > --- 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] > + [ARM,ARM64,X86,KNL] Yes. It supports ARM64. On the other hand, it also supports other architectures like MIPS S390 MICROBLAZE ... So I am not sure if it is a completely correct fix. CMA only depends on MMU. It probably doesn't depend on arch too much. Is it better to just move to [KNL]? > Sets the size of kernel global memory area for > contiguous memory allocations and optionally the > placement constraint by the physical address range of > -- > 2.7.4 Thanks Barry
