linux-kernel - Re: 3.8-rc2: EFI framebuffer lock inversion...

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Message-ID: <CA+icZUUepiyko99f8PSSZm=kPKSe3cqChXeec55BszTVCmDAmw@mail.gmail.com>
Date:	Thu, 3 Jan 2013 16:36:08 +0100
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Daniel J Blueman <daniel@...ra.org>
Cc:	alan@...rguk.ukuu.org.uk, linux-fbdev@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	Daniel Vetter <daniel.vetter@...ll.ch>
Subject: Re: 3.8-rc2: EFI framebuffer lock inversion...

On Thu, Jan 3, 2013 at 3:11 PM, Sedat Dilek <sedat.dilek@...il.com> wrote:
> Hi Daniel,
>
> just wanted to test the fb-fix [2] from Alan and followed the thread in [1].
> Me is also working with i915 KMS.
>
> I looked at nouveau KMS driver and adapted the part for i915:
>
> drivers/gpu/drm/nouveau/nouveau_drm.c-200-      /* remove conflicting
> drivers (vesafb, efifb etc) */
> drivers/gpu/drm/nouveau/nouveau_drm.c:201:      aper = alloc_apertures(3);
> drivers/gpu/drm/nouveau/nouveau_drm.c-202-      if (!aper)
> drivers/gpu/drm/nouveau/nouveau_drm.c-203-              return -ENOMEM;
>
> Untested by me, feel free to test.
>
> Maybe some of the i915 and/or fb driver experts can comment on the problem.
>

That is the i915 part [---> i915_kick_out_firmware_fb()] where I looked at [1].

- Sedat -

[1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=drivers/gpu/drm/i915/i915_dma.c;hb=refs/tags/v3.8-rc2#l1393

> Regards,
> - Sedat -
>
> [1] http://marc.info/?t=135721787600001&r=1&w=2
> [2] https://patchwork.kernel.org/patch/1757061/
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