[Intel-gfx] [PATCH 00/27] Parallel submission aka multi-bb execbuf

Matthew Brost
2021-08-20T22:50:48Z

As discussed in [1] we are introducing a new parallel submission uAPI
for the i915 which allows more than 1 BB to be submitted in an execbuf
IOCTL. This is the implemenation for both GuC and execlists.

In addition to selftests in the series, an IGT is available implemented
in the first 4 patches [2].

Media UMD changes to land soon.

First patch in the series in a squashed patch of [3] and does not need
to be reviewed here.

The execbuf IOCTL changes have been done in a single large patch (#24)
as all the changes flow together and I believe a single patch will be
better if some one has to lookup this change in the future. Can split in
a series of smaller patches if desired.

This code is available in a public [4] repo for UMD teams to test there
code on.

v2: Drop complicated state machine to block in kernel if no guc_ids
available, perma-pin parallel contexts, reworker execbuf IOCTL to be a
series of loops inside the IOCTL rather than 1 large one on the outside,
address Daniel Vetter's comments, rebase on [3]

Signed-off-by: Matthew Brost <matthew.brost@intel.com>

[1] https://patchwork.freedesktop.org/series/92028/
[2] https://patchwork.freedesktop.org/series/93071/
[3] https://patchwork.freedesktop.org/series/93704/
[4] https://gitlab.freedesktop.org/mbrost/mbrost-drm-intel/-/tree/drm-intel-parallel

Matthew Brost (27):
drm/i915/guc: Squash Clean up GuC CI failures, simplify locking, and
kernel DOC
drm/i915/guc: Allow flexible number of context ids
drm/i915/guc: Connect the number of guc_ids to debugfs
drm/i915/guc: Take GT PM ref when deregistering context
drm/i915: Add GT PM unpark worker
drm/i915/guc: Take engine PM when a context is pinned with GuC
submission
drm/i915/guc: Don't call switch_to_kernel_context with GuC submission
drm/i915: Add logical engine mapping
drm/i915: Expose logical engine instance to user
drm/i915/guc: Introduce context parent-child relationship
drm/i915/guc: Implement parallel context pin / unpin functions
drm/i915/guc: Add multi-lrc context registration
drm/i915/guc: Ensure GuC schedule operations do not operate on child
contexts
drm/i915/guc: Assign contexts in parent-child relationship consecutive
guc_ids
drm/i915/guc: Implement multi-lrc submission
drm/i915/guc: Insert submit fences between requests in parent-child
relationship
drm/i915/guc: Implement multi-lrc reset
drm/i915/guc: Update debugfs for GuC multi-lrc
drm/i915: Fix bug in user proto-context creation that leaked contexts
drm/i915/guc: Connect UAPI to GuC multi-lrc interface
drm/i915/doc: Update parallel submit doc to point to i915_drm.h
drm/i915/guc: Add basic GuC multi-lrc selftest
drm/i915/guc: Implement no mid batch preemption for multi-lrc
drm/i915: Multi-BB execbuf
drm/i915/guc: Handle errors in multi-lrc requests
drm/i915: Enable multi-bb execbuf
drm/i915/execlists: Weak parallel submission support for execlists

Documentation/gpu/rfc/i915_parallel_execbuf.h | 122 -
Documentation/gpu/rfc/i915_scheduler.rst | 4 +-
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/gem/i915_gem_context.c | 222 +-
.../gpu/drm/i915/gem/i915_gem_context_types.h | 6 +
.../gpu/drm/i915/gem/i915_gem_execbuffer.c | 765 ++++--
drivers/gpu/drm/i915/gt/intel_context.c | 58 +-
drivers/gpu/drm/i915/gt/intel_context.h | 52 +-
drivers/gpu/drm/i915/gt/intel_context_types.h | 148 +-
drivers/gpu/drm/i915/gt/intel_engine.h | 12 +-
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 66 +-
drivers/gpu/drm/i915/gt/intel_engine_pm.c | 9 +
drivers/gpu/drm/i915/gt/intel_engine_pm.h | 20 +
drivers/gpu/drm/i915/gt/intel_engine_types.h | 5 +
.../drm/i915/gt/intel_execlists_submission.c | 68 +-
drivers/gpu/drm/i915/gt/intel_gt.c | 3 +
drivers/gpu/drm/i915/gt/intel_gt_pm.c | 8 +
drivers/gpu/drm/i915/gt/intel_gt_pm.h | 23 +
.../gpu/drm/i915/gt/intel_gt_pm_unpark_work.c | 35 +
.../gpu/drm/i915/gt/intel_gt_pm_unpark_work.h | 40 +
drivers/gpu/drm/i915/gt/intel_gt_types.h | 10 +
drivers/gpu/drm/i915/gt/intel_lrc.c | 7 +
drivers/gpu/drm/i915/gt/selftest_execlists.c | 12 +-
drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 6 +-
drivers/gpu/drm/i915/gt/selftest_lrc.c | 29 +-
.../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h | 1 +
drivers/gpu/drm/i915/gt/uc/intel_guc.c | 21 +
drivers/gpu/drm/i915/gt/uc/intel_guc.h | 61 +-
drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 2 +-
drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 30 +-
.../gpu/drm/i915/gt/uc/intel_guc_debugfs.c | 36 +
drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h | 10 +-
.../gpu/drm/i915/gt/uc/intel_guc_submission.c | 2312 +++++++++++++----
drivers/gpu/drm/i915/gt/uc/selftest_guc.c | 126 +
.../drm/i915/gt/uc/selftest_guc_multi_lrc.c | 180 ++
drivers/gpu/drm/i915/i915_gpu_error.c | 39 +-
drivers/gpu/drm/i915/i915_query.c | 2 +
drivers/gpu/drm/i915/i915_request.c | 120 +-
drivers/gpu/drm/i915/i915_request.h | 40 +-
drivers/gpu/drm/i915/i915_trace.h | 12 +-
drivers/gpu/drm/i915/i915_vma.c | 21 +-
drivers/gpu/drm/i915/i915_vma.h | 13 +-
drivers/gpu/drm/i915/intel_wakeref.c | 5 +
drivers/gpu/drm/i915/intel_wakeref.h | 13 +
.../drm/i915/selftests/i915_live_selftests.h | 2 +
drivers/gpu/drm/i915/selftests/i915_request.c | 100 +
.../i915/selftests/intel_scheduler_helpers.c | 12 +
.../i915/selftests/intel_scheduler_helpers.h | 2 +
include/uapi/drm/i915_drm.h | 136 +-
49 files changed, 3928 insertions(+), 1099 deletions(-)
delete mode 100644 Documentation/gpu/rfc/i915_parallel_execbuf.h
create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_pm_unpark_work.c
create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_pm_unpark_work.h
create mode 100644 drivers/gpu/drm/i915/gt/uc/selftest_guc.c
create mode 100644 drivers/gpu/drm/i915/gt/uc/selftest_guc_multi_lrc.c

--
2.32.0