On Sat, Jan 10, 2009 at 07:16:22PM +0100, Martin Michlmayr wrote:

> Your patch "drm: Add GEM ("graphics execution manager") to i915
> driver" [1] broke compilation on MIPS because agp.h doesn't exist.
> 
>   CALL    scripts/checksyscalls.sh
>   CC [M]  drivers/gpu/drm/drm_agpsupport.o
> drivers/gpu/drm/drm_agpsupport.c:36:21: error: asm/agp.h: No such file or 
> directory
> make[3]: *** [drivers/gpu/drm/drm_agpsupport.o] Error 1
> 
> [1] 
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=673a394b1e3b69be886ff24abfd6df97c52e8d08

In drivers/gpu/drm/Kconfig:

> menuconfig DRM
>         tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI 
> support)"
>         depends on (AGP || AGP=n) && PCI && !EMULATED_CMPXCHG && MMU

(AGP || AGP=n) is looking fishy.  What is the intend here?

>         select I2C
>         select I2C_ALGOBIT

Shouldn't these be selected by the individual drivers?

Some drivers further down the same config file have "depends on DRM" though
they afaik are only PCI.  Yet the AGP code will be built and there might
not be any AGP support in such a system ...

  Ralf

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