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| author | Matthew Brost <[email protected]> | 2021-10-14 17:20:01 +0000 |
|---|---|---|
| committer | John Harrison <[email protected]> | 2021-10-15 17:45:50 +0000 |
| commit | 28c7023332ceb95c19d9f19914a63f88d15ab427 (patch) | |
| tree | f2c2c8a8259500539becd390c248c3b46c2641ca /drivers/gpu/drm/i915/i915_request.c | |
| parent | drm/i915: Multi-BB execbuf (diff) | |
| download | kernel-28c7023332ceb95c19d9f19914a63f88d15ab427.tar.gz kernel-28c7023332ceb95c19d9f19914a63f88d15ab427.zip | |
drm/i915/guc: Handle errors in multi-lrc requests
If an error occurs in the front end when multi-lrc requests are getting
generated we need to skip these in the backend but we still need to
emit the breadcrumbs seqno. An issues arises because with multi-lrc
breadcrumbs there is a handshake between the parent and children to make
forward progress. If all the requests are not present this handshake
doesn't work. To work around this, if multi-lrc request has an error we
skip the handshake but still emit the breadcrumbs seqno.
v2:
(John Harrison)
- Add comment explaining the skipping of the handshake logic
- Fix typos in the commit message
v3:
(John Harrison)
- Fix up some comments about the math to NOP the ring
Signed-off-by: Matthew Brost <[email protected]>
Reviewed-by: John Harrison <[email protected]>
Signed-off-by: John Harrison <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/gpu/drm/i915/i915_request.c')
0 files changed, 0 insertions, 0 deletions