From: Jon Smirl <jonsmirl@yahoo.com>
To: fb-devel <linux-fbdev-devel@lists.sourceforge.net>
Subject: large framebuffers and mmap
Date: Sun, 21 Sep 2003 20:04:48 -0700 (PDT) [thread overview]
Message-ID: <20030922030448.2986.qmail@web14908.mail.yahoo.com> (raw)
Right now the framebuffer drivers are mapping the framebuffer into the kernel
address space. But shouldn't the fbconsole layer be doing the ioremap()? That
way there would be a single point of remap for all framebuffer drivers. It
would also let all of the high mem access code be localized into fbconsole if
the fb was mapped high.
This would also get around my problem of using framebuffer drivers but not
using framebuffer console. In my case I don't have enough kernel address space
to do the remap. If fbconsole is doing the map, then the kernel map will never
happen on my system since I don't load fbconsole.
I looked through a couple of drivers and none of them seem to touch the buffer
after it has been remapped. They only pass the pointer back to fbconsole.
=====
Jon Smirl
jonsmirl@yahoo.com
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next reply other threads:[~2003-09-22 3:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-22 3:04 Jon Smirl [this message]
2003-09-22 7:16 ` large framebuffers and mmap Geert Uytterhoeven
2003-09-22 19:20 ` James Simmons
-- strict thread matches above, loose matches on Subject: below --
2003-09-22 2:50 Jon Smirl
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