linux-mips
[Top] [All Lists]

Re: ALSA on MIPS platform

To: jiankemeng@gmail.com
Subject: Re: ALSA on MIPS platform
From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Tue, 07 Aug 2007 23:01:57 +0900 (JST)
Cc: tiansm@lemote.com, linux-mips@linux-mips.org, alsa-devel@alsa-project.org, ralf@linux-mips.org, tiwai@suse.de, greg@kroah.com
In-reply-to: <5861a7880708062317t21970c81w3f16580858bf50af@mail.gmail.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <46B332AC.8020403@lemote.com> <5861a7880708062253x7133659cm1ff17f451e4f82f8@mail.gmail.com> <5861a7880708062317t21970c81w3f16580858bf50af@mail.gmail.com>
Sender: linux-mips-bounce@linux-mips.org
On Tue, 7 Aug 2007 10:18:04 +0400, "Dajie Tan" <jiankemeng@gmail.com> wrote:
>  static inline unsigned long virt_to_phys(volatile const void *address)
>  {
> -       return (unsigned long)address - PAGE_OFFSET + PHYS_OFFSET;
> +       return ((unsigned long)address & 0x1fffffff) + PHYS_OFFSET;
>  }

This makes virt_to_phys() a bit slower, and more importantly, breaks
64-bit kernel.

---
Atsushi Nemoto

<Prev in Thread] Current Thread [Next in Thread>