From 1244ca74c23b2c52c99c86146ca68f419339e31a Mon Sep 17 00:00:00 2001
From: Matthew Brost <matthew.brost@intel.com>
Date: Thu, 14 Oct 2021 10:19:55 -0700
Subject: drm/i915/guc: Update debugfs for GuC multi-lrc
Git-commit: d38a9294491dcc38b0508c865b59604f66fb08c4
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Display the workqueue status in debugfs for GuC contexts that are in
parent-child relationship.
v2:
(John Harrison)
- Output number children in debugfs
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/20211014172005.27155-16-matthew.brost@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../gpu/drm/i915/gt/uc/intel_guc_submission.c | 52 ++++++++++++++-----
1 file changed, 38 insertions(+), 14 deletions(-)
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 112b5e6fe39d..938dc34e8d3a 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -3702,6 +3702,25 @@ static inline void guc_log_context_priority(struct drm_printer *p,
drm_printf(p, "\n");
}
+static inline void guc_log_context(struct drm_printer *p,
+ struct intel_context *ce)
+{
+ drm_printf(p, "GuC lrc descriptor %u:\n", ce->guc_id.id);
+ drm_printf(p, "\tHW Context Desc: 0x%08x\n", ce->lrc.lrca);
+ drm_printf(p, "\t\tLRC Head: Internal %u, Memory %u\n",
+ ce->ring->head,
+ ce->lrc_reg_state[CTX_RING_HEAD]);
+ drm_printf(p, "\t\tLRC Tail: Internal %u, Memory %u\n",
+ ce->ring->tail,
+ ce->lrc_reg_state[CTX_RING_TAIL]);
+ drm_printf(p, "\t\tContext Pin Count: %u\n",
+ atomic_read(&ce->pin_count));
+ drm_printf(p, "\t\tGuC ID Ref Count: %u\n",
+ atomic_read(&ce->guc_id.ref));
+ drm_printf(p, "\t\tSchedule State: 0x%x\n\n",
+ ce->guc_state.sched_state);
+}
+
void intel_guc_submission_print_context_info(struct intel_guc *guc,
struct drm_printer *p)
{
@@ -3711,22 +3730,27 @@ void intel_guc_submission_print_context_info(struct intel_guc *guc,
xa_lock_irqsave(&guc->context_lookup, flags);
xa_for_each(&guc->context_lookup, index, ce) {
- drm_printf(p, "GuC lrc descriptor %u:\n", ce->guc_id.id);
- drm_printf(p, "\tHW Context Desc: 0x%08x\n", ce->lrc.lrca);
- drm_printf(p, "\t\tLRC Head: Internal %u, Memory %u\n",
- ce->ring->head,
- ce->lrc_reg_state[CTX_RING_HEAD]);
- drm_printf(p, "\t\tLRC Tail: Internal %u, Memory %u\n",
- ce->ring->tail,
- ce->lrc_reg_state[CTX_RING_TAIL]);
- drm_printf(p, "\t\tContext Pin Count: %u\n",
- atomic_read(&ce->pin_count));
- drm_printf(p, "\t\tGuC ID Ref Count: %u\n",
- atomic_read(&ce->guc_id.ref));
- drm_printf(p, "\t\tSchedule State: 0x%x\n\n",
- ce->guc_state.sched_state);
+ GEM_BUG_ON(intel_context_is_child(ce));
+ guc_log_context(p, ce);
guc_log_context_priority(p, ce);
+
+ if (intel_context_is_parent(ce)) {
+ struct guc_process_desc *desc = __get_process_desc(ce);
+ struct intel_context *child;
+
+ drm_printf(p, "\t\tNumber children: %u\n",
+ ce->parallel.number_children);
+ drm_printf(p, "\t\tWQI Head: %u\n",
+ READ_ONCE(desc->head));
+ drm_printf(p, "\t\tWQI Tail: %u\n",
+ READ_ONCE(desc->tail));
+ drm_printf(p, "\t\tWQI Status: %u\n\n",
+ READ_ONCE(desc->wq_status));
+
+ for_each_child(ce, child)
+ guc_log_context(p, child);
+ }
}
xa_unlock_irqrestore(&guc->context_lookup, flags);
}
--
2.38.1