drm/nouveau/subdev: track type+instance separately

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We use subdev id bitmasks (as a u64) in a number of places, and GA100 adds
enough new engine instances that we run out of bits.  We could alias IDs of
engines that no longer exist, but it's cleaner for a number of reasons to
just split the subdev index into a subdev type, and instance ID instead.

Just a lot more painful to do.

This magics up the values for old-style subdev constructors, and provides a
way to incrementally transition each subdev to the new style.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>

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This commit is contained in:

Ben Skeggs 2020-07-25 16:40:07 +10:00

parent 9c28abb7db

commit 65a279c1a9

3 changed files with 115 additions and 78 deletions

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73

drivers/gpu/drm/nouveau/include/nvkm/core/device.h

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86

drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h

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34

drivers/gpu/drm/nouveau/nvkm/core/subdev.c

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