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(parent: d2f88a5) | patch
drm/nouveau/fifo/gk104-: trigger mmu fault before attempting engine recovery
authorBen Skeggs <bskeggs@redhat.com>
Wed, 18 Jan 2017 05:37:24 +0000 (15:37 +1000)
committerBen Skeggs <bskeggs@redhat.com>
Fri, 17 Feb 2017 07:38:15 +0000 (17:38 +1000)
commit9b9a22107442de96cf980d20bbe929d66cc78f7e
tree37ada711f09322e53a934961e66e88a4de89e570tree | snapshot
parentd2f88a5db87874246c07c36a90c229ab291a394ccommit | diff
drm/nouveau/fifo/gk104-: trigger mmu fault before attempting engine recovery

Greatly improves the chances of recovering the GPU from a CTXSW_TIMEOUT.

Tested with piglit's arb_shader_image_load_store-atomicity, which causes
GR to hang in such a way that recovery failed (CTXSW_TIMEOUT continually
re-triggers).

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c diff | blob | history
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