Messages in this thread | | | Date | Sun, 24 Jan 2016 22:31:21 +0100 | Subject | Re: [PATCH] mtd: bcm47xxsflash: use devm_ioremap_nocache() instead of KSEG0ADDR() | From | Rafał Miłecki <> |
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On 24 January 2016 at 21:26, Maciej W. Rozycki <macro@imgtec.com> wrote: > On Sat, 23 Jan 2016, Brian Norris wrote: > >> IIUC, this could be solved by: >> (a) using an uncached mapping or >> (b) explicitly invalidating the relevant region after doing flash writes >> or erasures > > Flash writes are usually much, much less frequent than reads, so > optimising for reads is IMO the right direction. So a cached mapping is a > good choice, however invalidation must then be done after a write.
Can you give me some hint where to look at for cache invalidation?
-- Rafał
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