diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2021-10-14 10:19:42 -0700 |
|---|---|---|
| committer | John Harrison <John.C.Harrison@Intel.com> | 2021-10-15 10:37:23 -0700 |
| commit | 1a52faed3131147c10bb7f908d0f7a29b94f59ae (patch) | |
| tree | 3b831a180f9f4116f8a9528fce4ae237e59a2c3a /drivers/gpu/drm/i915/gt/intel_context.c | |
| parent | 0ea92ace8b95f67224ee26c4955efc7104d8e8e1 (diff) | |
drm/i915/guc: Take GT PM ref when deregistering context
Taking a PM reference to prevent intel_gt_wait_for_idle from short
circuiting while a deregister context H2G is in flight. To do this must
issue the deregister H2G from a worker as context can be destroyed from
an atomic context and taking GT PM ref blows up. Previously we took a
runtime PM from this atomic context which worked but will stop working
once runtime pm autosuspend in enabled.
So this patch is two fold, stop intel_gt_wait_for_idle from short
circuting and fix runtime pm autosuspend.
v2:
(John Harrison)
- Split structure changes out in different patch
(Tvrtko)
- Don't drop lock in deregister_destroyed_contexts
v3:
(John Harrison)
- Flush destroyed contexts before destroying context reg pool
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/20211014172005.27155-3-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_context.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_context.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c index e1bba4cfc0ff..0f25d07e55e5 100644 --- a/drivers/gpu/drm/i915/gt/intel_context.c +++ b/drivers/gpu/drm/i915/gt/intel_context.c @@ -399,6 +399,8 @@ intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine) ce->guc_id.id = GUC_INVALID_LRC_ID; INIT_LIST_HEAD(&ce->guc_id.link); + INIT_LIST_HEAD(&ce->destroyed_link); + /* * Initialize fence to be complete as this is expected to be complete * unless there is a pending schedule disable outstanding. |