Messages in this thread | | | Date | Mon, 13 Dec 2021 08:20:35 -0600 | Subject | Re: [PATCH v3 1/5] docs: kernel-parameters: Update to reflect the current default size of atomic pool | From | john.p.donnelly@oracle ... |
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On 12/13/21 6:27 AM, Baoquan He wrote: > Since commit 1d659236fb43("dma-pool: scale the default DMA coherent pool > size with memory capacity"), the default size of atomic pool has been > changed to take by scaling with system memory capacity. So update the > document in kerenl-parameter.txt accordingly. > > Signed-off-by: Baoquan He <bhe@redhat.com> > Acked-by: John Donnelly <john.p.donnelly@oracle.com> Tested-by: John Donnelly <john.p.donnelly@oracle.com>
> --- > Documentation/admin-guide/kernel-parameters.txt | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 9725c546a0d4..ec4d25e854a8 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -664,7 +664,9 @@ > > coherent_pool=nn[KMG] [ARM,KNL] > Sets the size of memory pool for coherent, atomic dma > - allocations, by default set to 256K. > + allocations. Otherwise the default size will be scaled > + with memory capacity, while clamped between 128K and > + 1 << (PAGE_SHIFT + MAX_ORDER-1). > > com20020= [HW,NET] ARCnet - COM20020 chipset > Format:
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