Messages in this thread | | | From | Miquel Raynal <> | Subject | Re: [PATCH v3 4/4] mtd: phram: Allow cached mappings | Date | Thu, 21 Apr 2022 09:35:57 +0200 |
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On Tue, 2022-04-12 at 13:53:02 UTC, Vincent Whitchurch wrote: > Currently phram always uses ioremap(), but this is unnecessary when > normal memory is used. If the reserved-memory node does not specify the > no-map property, indicating it should be mapped as system RAM and > ioremap() cannot be used on it, use a cached mapping using > memremap(MEMREMAP_WB) instead. > > On one of my systems this improves read performance by ~70%. > > Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> > Reported-by: kernel test robot <lkp@intel.com>
Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks.
Miquel
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