From: Richard Weinberger <richard@nod.at>
To: Luca Risolia <luca.risolia@studio.unibo.it>
Cc: Miklos Szeredi <miklos@szeredi.hu>,
Vignesh Raghavendra <vigneshr@ti.com>,
fuse-devel <fuse-devel@lists.sourceforge.net>,
Miquel Raynal <miquel.raynal@bootlin.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Boris Brezillon <boris.brezillon@collabora.com>,
linux-mtd <linux-mtd@lists.infradead.org>,
Ron Minnich <rminnich@google.com>, sven <sven@narfation.org>
Subject: Re: [fuse-devel] [PATCH 0/8] MUSE: Userspace backed MTD v3
Date: Tue, 9 Feb 2021 17:04:44 +0100 (CET) [thread overview]
Message-ID: <1517729157.378701.1612886684264.JavaMail.zimbra@nod.at> (raw)
In-Reply-To: <b2424246-d42b-d0bc-8951-8cefdf5b681d@studio.unibo.it>
----- Ursprüngliche Mail -----
> for example, many existing video applications use mmap() to map the
> device memory to userspace memory. Adding support for mmap() to CUSE
> would allow these apps to work without any modifications with CUSE-based
> device drivers other than kernel drivers.
So you want to access device memory via CUSE?
We have plenty of mechanisms in Linux to allow userspace accessing device memory.
E.g. /dev/mem, UIO, VFIO.
A simple (but ugly!) approach would be redirecting mmap() requests on CUSE devices to /dev/mem.
hmm?
Thanks,
//richard
next prev parent reply other threads:[~2021-02-09 16:05 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-24 23:19 [PATCH 0/8] MUSE: Userspace backed MTD v3 Richard Weinberger
2021-01-24 23:20 ` [PATCH 1/8] fuse: Export fuse_simple_request Richard Weinberger
2021-01-24 23:20 ` [PATCH 2/8] fuse: Export IO helpers Richard Weinberger
2021-01-24 23:20 ` [PATCH 3/8] fuse: Make cuse_parse_one a common helper Richard Weinberger
2021-01-24 23:20 ` [PATCH 4/8] mtd: Add MTD_MUSE flag Richard Weinberger
2021-01-24 23:20 ` [PATCH 5/8] mtd: Allow passing a custom cmdline to cmdline line parser Richard Weinberger
2021-01-24 23:20 ` [PATCH 6/8] fuse: Add MUSE specific defines FUSE interface Richard Weinberger
2021-01-24 23:20 ` [PATCH 7/8] fuse: Implement MUSE - MTD in userspace Richard Weinberger
2021-01-24 23:20 ` [PATCH 8/8] MAINTAINERS: Add entry for MUSE Richard Weinberger
2021-01-28 10:30 ` [PATCH 0/8] MUSE: Userspace backed MTD v3 Miquel Raynal
2021-02-01 13:14 ` Richard Weinberger
2021-02-01 13:55 ` Miklos Szeredi
2021-02-09 14:26 ` Miklos Szeredi
2021-02-09 14:35 ` Richard Weinberger
2021-02-09 15:10 ` [fuse-devel] " Luca Risolia
2021-02-09 15:22 ` Miklos Szeredi
2021-02-09 15:41 ` Richard Weinberger
2021-02-09 15:56 ` Luca Risolia
2021-02-09 16:04 ` Richard Weinberger [this message]
2021-02-09 16:28 ` Luca Risolia
2021-02-09 16:29 ` Richard Weinberger
2021-02-09 16:42 ` Luca Risolia
2021-02-09 16:50 ` Richard Weinberger
2021-02-09 17:46 ` Luca Risolia
2021-02-09 19:42 ` Miklos Szeredi
2021-02-09 20:06 ` Richard Weinberger
2021-02-10 10:12 ` Miklos Szeredi
2021-02-10 11:12 ` Richard Weinberger
2021-02-10 11:16 ` Miklos Szeredi
2021-02-11 18:09 ` Miklos Szeredi
2021-04-13 12:59 ` Miklos Szeredi
2021-02-09 21:39 ` Richard Weinberger
2021-02-10 10:16 ` Miklos Szeredi
2021-02-10 11:00 ` Richard Weinberger
2021-02-10 11:14 ` Miquel Raynal
2021-02-10 11:23 ` Richard Weinberger
2021-02-10 20:55 ` Miquel Raynal
2021-02-10 21:11 ` Richard Weinberger
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