diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2021-07-27 03:23:27 +0300 |
|---|---|---|
| committer | John Harrison <John.C.Harrison@Intel.com> | 2021-07-28 03:31:50 +0300 |
| commit | 1e0fd2b5da1ed5f71985676dc55145dd58367d93 (patch) | |
| tree | 29efdef952a2dbfee11ebc4128761333ec1b57f0 /drivers/gpu | |
| parent | cad46a332f3d0f0ffeb9f9069499fb19a2ab43f4 (diff) | |
| download | linux-1e0fd2b5da1ed5f71985676dc55145dd58367d93.tar.xz | |
drm/i915/guc: Handle context reset notification
GuC will issue a reset on detecting an engine hang and will notify
the driver via a G2H message. The driver will service the notification
by resetting the guilty context to a simple state or banning it
completely.
v2:
(John Harrison)
- Move msg[0] lookup after length check
v3:
(John Harrison)
- s/drm_dbg/drm_err
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: John Harrison <John.C.Harrison@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/20210727002348.97202-13-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 36 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_trace.h | 10 |
4 files changed, 51 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index 7b871f675e48..c79da154c16d 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -269,6 +269,8 @@ int intel_guc_deregister_done_process_msg(struct intel_guc *guc, const u32 *msg, u32 len); int intel_guc_sched_done_process_msg(struct intel_guc *guc, const u32 *msg, u32 len); +int intel_guc_context_reset_process_msg(struct intel_guc *guc, + const u32 *msg, u32 len); void intel_guc_submission_reset_prepare(struct intel_guc *guc); void intel_guc_submission_reset(struct intel_guc *guc, bool stalled); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c index 8bb6b1bbcea1..231a42887675 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c @@ -984,6 +984,9 @@ static int ct_process_request(struct intel_guc_ct *ct, struct ct_incoming_msg *r case INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_DONE: ret = intel_guc_sched_done_process_msg(guc, payload, len); break; + case INTEL_GUC_ACTION_CONTEXT_RESET_NOTIFICATION: + ret = intel_guc_context_reset_process_msg(guc, payload, len); + break; default: ret = -EOPNOTSUPP; break; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index d39a312e980a..7be84b0761b5 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -2201,6 +2201,42 @@ int intel_guc_sched_done_process_msg(struct intel_guc *guc, return 0; } +static void guc_context_replay(struct intel_context *ce) +{ + struct i915_sched_engine *sched_engine = ce->engine->sched_engine; + + __guc_reset_context(ce, true); + tasklet_hi_schedule(&sched_engine->tasklet); +} + +static void guc_handle_context_reset(struct intel_guc *guc, + struct intel_context *ce) +{ + trace_intel_context_reset(ce); + guc_context_replay(ce); +} + +int intel_guc_context_reset_process_msg(struct intel_guc *guc, + const u32 *msg, u32 len) +{ + struct intel_context *ce; + int desc_idx; + + if (unlikely(len != 1)) { + drm_err(&guc_to_gt(guc)->i915->drm, "Invalid length %u", len); + return -EPROTO; + } + + desc_idx = msg[0]; + ce = g2h_context_lookup(guc, desc_idx); + if (unlikely(!ce)) + return -EPROTO; + + guc_handle_context_reset(guc, ce); + + return 0; +} + void intel_guc_submission_print_info(struct intel_guc *guc, struct drm_printer *p) { diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h index 68b70626c3e2..3f43d904f043 100644 --- a/drivers/gpu/drm/i915/i915_trace.h +++ b/drivers/gpu/drm/i915/i915_trace.h @@ -920,6 +920,11 @@ DECLARE_EVENT_CLASS(intel_context, __entry->guc_sched_state_no_lock) ); +DEFINE_EVENT(intel_context, intel_context_reset, + TP_PROTO(struct intel_context *ce), + TP_ARGS(ce) +); + DEFINE_EVENT(intel_context, intel_context_register, TP_PROTO(struct intel_context *ce), TP_ARGS(ce) @@ -1008,6 +1013,11 @@ trace_i915_request_out(struct i915_request *rq) } static inline void +trace_intel_context_reset(struct intel_context *ce) +{ +} + +static inline void trace_intel_context_register(struct intel_context *ce) { } |