http://bugs.freedesktop.org/show_bug.cgi?id=25589
Summary: compiling nouveau kernel without AGP=y fails
Product: xorg
Version: unspecified
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Check out a nouveau kernel tree.
make allnoconfig
make *config and enable only the necessary things to enable DRM_NOUVEAU
make all
This will fail with:
CC drivers/gpu/drm/nouveau/nouveau_bo.o
drivers/gpu/drm/nouveau/nouveau_bo.c: In function
'nouveau_bo_create_ttm_backend_entry':
drivers/gpu/drm/nouveau/nouveau_bo.c:315: error: implicit declaration of
function 'ttm_agp_backend_init'
drivers/gpu/drm/nouveau/nouveau_bo.c:315: warning: return makes pointer from
integer without a cast
make[4]: *** [drivers/gpu/drm/nouveau/nouveau_bo.o] Error 1
To make ttm_agp_backend_init avaible and nouveau to actually compile you have
to enable AGP in the kernel also.
Should AGP be a reuirment or should the module just not try to use
ttm_agp_backend_init if AGP is unset?
I have currently no idea which role AGP plays in todays modern PCI-E computers
(or old PCI card) if any at all?
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