Re: [PATCH v4 1/6] mtd: nand: vf610_nfc: Freescale NFC for VF610, MPC5125 and others
From: Sebastian Andrzej Siewior <hidden>
Date: 2015-06-09 20:08:08
Also in:
linux-arm-kernel, lkml
From: Sebastian Andrzej Siewior <hidden>
Date: 2015-06-09 20:08:08
Also in:
linux-arm-kernel, lkml
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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html