On Thu, 23 Oct 2003, Jon Smirl wrote:
>
> What about the fundamental question? We have several pairs of device drivers
> that want to control the same hardware. One example would be radeon DRM and
> radeon Framebuffer. How should these drivers coordinate probing and claiming
> resources?
Since th
Linus Torvalds wrote:
[ Jeff: is that PCI ROM enable _really_ that complicated? Ouch. Or is
there some helper function I missed? ]
The mechanics aren't complicated, but I seem to recall there being a
Real Good Reason why you want to leave it disabled 99% of the time. No,
I don't recall that
What about the fundamental question? We have several pairs of device drivers
that want to control the same hardware. One example would be radeon DRM and
radeon Framebuffer. How should these drivers coordinate probing and claiming
resources?
What should be the policy for multiple drivers?
1) try ne
Wouldn't it be better to add ROM enable/disable functions to the PCI driver
than to scatter it out into every driver? All of the framebuffer and DRM
drivers need to do this. I also seem to remember that there are more steps
needed if this is going to work on an ARM chip.
--- Linus Torvalds <[EMAIL
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--- Additional Comments From [EMAIL PROTECTED] 2003-23-10 08:45 ---
Created an attachment
--- Eric Anholt <[EMAIL PROTECTED]> wrote:
> I've converted the DRM to old-style attachment. I haven't tested with
> radeonfb to see if it actually fixed it (netboot linux kernels are
> annoying to prepare), but my radeon and sis cards continued to work. If
> someone could test with radeonfb and
I don't think DRM drivers are doing things correctly yet. DRM is missing the
code for marking PCI resources as being in use while DRM is using them. This
could lead to problems with hotplug. XFree is also mapping PCI ROMs in without
informing the kernel and that can definitely cause problems. I'm
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--- Additional Comments From [EMAIL PROTECTED] 2003-23-10 08:35 ---
Okay, sorry. I read so
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[EMAIL PROTECTED] changed:
What|Removed |Added
---
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--- Additional Comments From [EMAIL PROTECTED] 2003-23-10 08:43 ---
I have both the agpgar
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--- Additional Comments From [EMAIL PROTECTED] 2003-23-10 08:22 ---
"You have no module in
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