drm/nouveau/fault: add explicit control over fault buffer interrupts

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The GPU will continually fire interrupts while a fault buffer GET != PUT,
and to stop the spurious interrupts while the handler does its thing, we
were disabling the fault buffer temporarily.

This is not actually a great idea to begin with, and made worse by Volta
resetting GET/PUT when it's reactivated.  So, let's not do that.

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

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This commit is contained in:

Ben Skeggs 2018-12-11 14:50:02 +10:00

parent 809724560f

commit 3968d6920b

4 changed files with 29 additions and 8 deletions

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4

drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c

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10

drivers/gpu/drm/nouveau/nvkm/subdev/fault/gp100.c

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22

drivers/gpu/drm/nouveau/nvkm/subdev/fault/gv100.c

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1

drivers/gpu/drm/nouveau/nvkm/subdev/fault/priv.h

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