Messages in this thread | | | Date | Tue, 9 Jun 2015 22:07:51 +0200 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PATCH v4 1/6] mtd: nand: vf610_nfc: Freescale NFC for VF610, MPC5125 and others |
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On 2015-06-03 17:05:16 [+0200], Stefan Agner wrote: > As Boris guessed correctly, the reason I used the raw variant was due to > performance improvements due to the barrier. However, I will use
yeah, do you have any numbers by chance?
> {read|write}l_relaxed instead, which should offer endian abstraction > while not having the performance penalty due to extensive barriers...
well, even those |$ git grep readl_relaxed arch/powerpc/ |arch/powerpc/include/asm/io.h:#define readl_relaxed(addr) readl(addr)
have the endian swap. So an abstraction like you provided earlier would be nice :)
> -- > Stefan
Sebastian
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