From: Mike Frysinger <vapier.adi@gmail.com>
To: David Howells <dhowells@redhat.com>
Cc: uClinux development list <uclinux-dev@uclinux.org>,
linux-kernel@vger.kernel.org, Jie Zhang <jie.zhang@analog.com>,
Greg Ungerer <gerg@uclinux.org>,
uclinux-dist-devel@blackfin.uclinux.org,
David McCullough <davidm@snapgear.com>
Subject: Re: [uClinux-dev] [PATCH/RFC] FDPIC: add hook for arches to customize program header parsing
Date: Mon, 7 Dec 2009 05:10:20 -0500 [thread overview]
Message-ID: <8bd0f97a0912070210j5e1b56deg4d175b4a3758f0b9@mail.gmail.com> (raw)
In-Reply-To: <14959.1259948697@redhat.com>
On Fri, Dec 4, 2009 at 12:44, David Howells wrote:
> Mike Frysinger <vapier@gentoo.org> wrote:
>> The Blackfin port has custom program header flags/addresses for
>> automatically loading regions into the dedicated on-chip SRAM. So add a
>> hook for ports to leverage.
>
> Now that I've ACK'd this, I feel I'm going to have to NAK it. I'm not against
> the general concept, but:
>
>> + do_munmap(mm, *maddr, phdr->p_memsz + *disp);
>
> There needs to be a mapping covering the SRAM region for the purposes of the
> debugger. Do you have a chardev covering the SRAM device? Perhaps through
> MTD?
SRAM is accessed directly by kernel/user space. there is no device
indirection nor are there any mappings.
-mike
prev parent reply other threads:[~2009-12-07 10:10 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-13 1:01 Mike Frysinger
2009-06-13 12:23 ` [uClinux-dev] " David Howells
2009-06-13 16:13 ` Jamie Lokier
2009-06-13 16:40 ` Mike Frysinger
2009-06-13 18:25 ` Jamie Lokier
2009-06-13 18:26 ` Jamie Lokier
2009-06-14 0:32 ` Mike Frysinger
2009-06-14 0:42 ` Jie Zhang
2009-06-14 9:43 ` Paul Mundt
2009-06-15 1:43 ` Greg Ungerer
2009-06-16 8:24 ` [PATCH] " Mike Frysinger
2009-06-23 5:32 ` Andrew Morton
2009-06-23 11:04 ` Mike Frysinger
2009-12-04 17:44 ` [uClinux-dev] [PATCH/RFC] " David Howells
2009-12-05 0:28 ` Jie Zhang
2009-12-07 3:27 ` [Uclinux-dist-devel] " Zhang, Sonic
2009-12-07 10:10 ` Mike Frysinger
2009-12-07 10:17 ` Jie Zhang
2009-12-05 15:14 ` David Howells
2009-12-07 10:09 ` Mike Frysinger
2009-12-07 10:10 ` Mike Frysinger [this message]
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