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Searched hist:"4946980099 c617ba7612f97f77cba7ece5b7f820" (Results 1 – 3 of 3) sorted by relevance

/linux/drivers/gpu/drm/nouveau/
H A Dnouveau_chan.cdiff 4946980099c617ba7612f97f77cba7ece5b7f820 Thu Nov 22 04:43:55 CET 2012 Ben Skeggs <bskeggs@redhat.com> drm/nve0: allow specification of channel engine type in abi16 call

Previously, if either vram/gart handles were specified as ~0, the ioctl
call would fail. In order to hack engine selection into the ioctl for
kepler, we now define (fb_ctxdma_handle == ~0) to mean "engine mask is
in tt_ctxdma_handle".

This approach also allows new userspace to detect lack of support for
non-PGRAPH channels on older kernels.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
H A Dnouveau_abi16.cdiff 4946980099c617ba7612f97f77cba7ece5b7f820 Thu Nov 22 04:43:55 CET 2012 Ben Skeggs <bskeggs@redhat.com> drm/nve0: allow specification of channel engine type in abi16 call

Previously, if either vram/gart handles were specified as ~0, the ioctl
call would fail. In order to hack engine selection into the ioctl for
kepler, we now define (fb_ctxdma_handle == ~0) to mean "engine mask is
in tt_ctxdma_handle".

This approach also allows new userspace to detect lack of support for
non-PGRAPH channels on older kernels.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
H A Dnouveau_drm.cdiff 4946980099c617ba7612f97f77cba7ece5b7f820 Thu Nov 22 04:43:55 CET 2012 Ben Skeggs <bskeggs@redhat.com> drm/nve0: allow specification of channel engine type in abi16 call

Previously, if either vram/gart handles were specified as ~0, the ioctl
call would fail. In order to hack engine selection into the ioctl for
kepler, we now define (fb_ctxdma_handle == ~0) to mean "engine mask is
in tt_ctxdma_handle".

This approach also allows new userspace to detect lack of support for
non-PGRAPH channels on older kernels.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>