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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c
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2022-11-09drm/nouveau/fault: expose replayable fault buffer event classBen Skeggs1-16/+0
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com>
2022-11-09drm/nouveau/fault: switch non-replayable faults to nvkm_event_ntfyBen Skeggs1-1/+1
v2: fix flush_work() being called uninitialised during init Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com>
2022-11-09drm/nouveau/nvkm: add a replacement for nvkm_notifyBen Skeggs1-2/+1
This replaces the twisty, confusing, relationship between nvkm_event and nvkm_notify with something much simpler, and less racey. It also places events in the object tree hierarchy, which will allow a heap of the code tracking events across allocation/teardown/suspend to be removed. This commit just adds the new interfaces, and passes the owning subdev to the event constructor to enable debug-tracing in the new code. v2: - use ?: (lyude) Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com>
2021-02-11drm/nouveau/fault: switch to instanced constructorBen Skeggs1-2/+2
Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com>
2020-01-15drm/nouveau/fault/gv100-: fix memory leak on module unloadBen Skeggs1-0/+1
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2020-01-15drm/nouveau/fault: Add support for GP10BThierry Reding1-1/+1
There is no BAR2 on GP10B and there is no need to map through BAR2 because all memory is shared between the GPU and the CPU. Add a custom implementation of the fault sub-device that uses nvkm_memory_addr() instead of nvkm_memory_bar2() to return the address of a pinned fault buffer. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2019-02-20drm/nouveau/fault/gp100: expose MaxwellFaultBufferABen Skeggs1-0/+2
This nvclass exposes the replayable fault buffer, which will be used by SVM to manage GPU page faults. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-12-11drm/nouveau/fault: add explicit control over fault buffer interruptsBen Skeggs1-2/+2
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>
2018-12-11drm/nouveau/fault: store get/put pri address in nvkm_fault_bufferBen Skeggs1-1/+1
Will allow more shared fault buffer handling code between Pascal/Volta. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-12-11drm/nouveau/fault: remove manual mapping of fault buffers into BAR2Ben Skeggs1-10/+5
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16drm/nouveau/fault/gv100: fix fault buffer initialisationBen Skeggs1-2/+8
Not sure how this happened, it worked last time I tested it! Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-05-18drm/nouveau/fault: add infrastructure to support fault buffersBen Skeggs1-0/+179
GPU-specific support will be added separately. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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