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| author | Matthew Brost <matthew.brost@intel.com> | 2021-10-14 10:19:46 -0700 |
|---|---|---|
| committer | John Harrison <John.C.Harrison@Intel.com> | 2021-10-15 10:37:31 -0700 |
| commit | 9409eb35942713d0cdd471e5ff99c93929d6a749 (patch) | |
| tree | 3d2627898d36329ce8099156b01fd63c2ff1240d /drivers/gpu/drm/i915/i915_query.c | |
| parent | 4f3059dc2dbbc5547684558f18565719c365b30e (diff) | |
| download | linux-stable-9409eb35942713d0cdd471e5ff99c93929d6a749.tar.gz linux-stable-9409eb35942713d0cdd471e5ff99c93929d6a749.tar.bz2 linux-stable-9409eb35942713d0cdd471e5ff99c93929d6a749.zip | |
drm/i915: Expose logical engine instance to user
Expose logical engine instance to user via query engine info IOCTL. This
is required for split-frame workloads as these needs to be placed on
engines in a logically contiguous order. The logical mapping can change
based on fusing. Rather than having user have knowledge of the fusing we
simply just expose the logical mapping with the existing query engine
info IOCTL.
IGT: https://patchwork.freedesktop.org/patch/445637/?series=92854&rev=1
media UMD: https://github.com/intel/media-driver/pull/1252
v2:
(Daniel Vetter)
- Add IGT link, placeholder for media UMD
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211014172005.27155-7-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_query.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_query.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c index 5e2b909827f4..51b368be0fc4 100644 --- a/drivers/gpu/drm/i915/i915_query.c +++ b/drivers/gpu/drm/i915/i915_query.c @@ -124,7 +124,9 @@ query_engine_info(struct drm_i915_private *i915, for_each_uabi_engine(engine, i915) { info.engine.engine_class = engine->uabi_class; info.engine.engine_instance = engine->uabi_instance; + info.flags = I915_ENGINE_INFO_HAS_LOGICAL_INSTANCE; info.capabilities = engine->uabi_capabilities; + info.logical_instance = ilog2(engine->logical_mask); if (copy_to_user(info_ptr, &info, sizeof(info))) return -EFAULT; |