[PATCH 23/47] drm/i915/guc: Update GuC debugfs to support new GuC
Michal Wajdeczko
michal.wajdeczko at intel.com
Tue Jul 13 08:51:35 UTC 2021
On 24.06.2021 09:04, Matthew Brost wrote:
> Update GuC debugfs to support the new GuC structures.
>
> Signed-off-by: John Harrison <John.C.Harrison at Intel.com>
> Signed-off-by: Matthew Brost <matthew.brost at intel.com>
> ---
> drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 22 ++++++++
> drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h | 3 ++
> .../gpu/drm/i915/gt/uc/intel_guc_debugfs.c | 23 +++++++-
> .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 52 +++++++++++++++++++
> .../gpu/drm/i915/gt/uc/intel_guc_submission.h | 4 ++
> drivers/gpu/drm/i915/i915_debugfs.c | 1 +
> 6 files changed, 104 insertions(+), 1 deletion(-)
>
> 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 e0f92e28350c..4ed074df88e5 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
> @@ -1135,3 +1135,25 @@ void intel_guc_ct_event_handler(struct intel_guc_ct *ct)
>
> ct_try_receive_message(ct);
> }
> +
> +void intel_guc_log_ct_info(struct intel_guc_ct *ct,
this is not "guc log" function, it is "guc ct" one, so:
void intel_guc_ct_print_info(struct intel_guc_ct *ct,
> + struct drm_printer *p)
> +{
> + if (!ct->enabled) {
> + drm_puts(p, "CT disabled\n");
nit: maybe
drm_puts(p, "CT %s\n", enableddisabled(false));
> + return;
> + }
> +
> + drm_printf(p, "H2G Space: %u\n",
> + atomic_read(&ct->ctbs.send.space) * 4);
don't you want to print size ?
or GGTT offset ?
> + drm_printf(p, "Head: %u\n",
> + ct->ctbs.send.desc->head);
> + drm_printf(p, "Tail: %u\n",
> + ct->ctbs.send.desc->tail);
> + drm_printf(p, "G2H Space: %u\n",
> + atomic_read(&ct->ctbs.recv.space) * 4);
> + drm_printf(p, "Head: %u\n",
> + ct->ctbs.recv.desc->head);
> + drm_printf(p, "Tail: %u\n",
> + ct->ctbs.recv.desc->tail);
hmm, what about adding helper:
static void dump_ctb(struct intel_guc_ct_buffer *ctb, *p)
{
drm_printf(p, "Size: %u\n", ctb->size);
drm_printf(p, "Space: %u\n", atomic_read(&ctb->space) * 4);
drm_printf(p, "Head: %u\n", ctb->desc->head);
drm_printf(p, "Tail: %u\n", ctb->desc->tail);
}
and then:
drm_printf(p, "H2G:\n");
dump_ctb(&ct->ctbs.send, p);
drm_printf(p, "G2H:\n");
dump_ctb(&ct->ctbs.recv, p);
or
dump_ctb(&ct->ctbs.send, "H2G", p);
dump_ctb(&ct->ctbs.recv, "G2H", p);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> index ab1b79ab960b..f62eb06b32fc 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.h
> @@ -16,6 +16,7 @@
>
> struct i915_vma;
> struct intel_guc;
> +struct drm_printer;
>
> /**
> * DOC: Command Transport (CT).
> @@ -106,4 +107,6 @@ int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len,
> u32 *response_buf, u32 response_buf_size, u32 flags);
> void intel_guc_ct_event_handler(struct intel_guc_ct *ct);
>
> +void intel_guc_log_ct_info(struct intel_guc_ct *ct, struct drm_printer *p);
> +
> #endif /* _INTEL_GUC_CT_H_ */
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c
> index fe7cb7b29a1e..62b9ce0fafaa 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c
> @@ -9,6 +9,8 @@
> #include "intel_guc.h"
> #include "intel_guc_debugfs.h"
> #include "intel_guc_log_debugfs.h"
> +#include "gt/uc/intel_guc_ct.h"
> +#include "gt/uc/intel_guc_submission.h"
>
> static int guc_info_show(struct seq_file *m, void *data)
> {
> @@ -22,16 +24,35 @@ static int guc_info_show(struct seq_file *m, void *data)
> drm_puts(&p, "\n");
> intel_guc_log_info(&guc->log, &p);
>
> - /* Add more as required ... */
> + if (!intel_guc_submission_is_used(guc))
> + return 0;
> +
> + intel_guc_log_ct_info(&guc->ct, &p);
> + intel_guc_log_submission_info(guc, &p);
>
> return 0;
> }
> DEFINE_GT_DEBUGFS_ATTRIBUTE(guc_info);
>
> +static int guc_registered_contexts_show(struct seq_file *m, void *data)
> +{
> + struct intel_guc *guc = m->private;
> + struct drm_printer p = drm_seq_file_printer(m);
> +
> + if (!intel_guc_submission_is_used(guc))
> + return -ENODEV;
> +
> + intel_guc_log_context_info(guc, &p);
> +
> + return 0;
> +}
> +DEFINE_GT_DEBUGFS_ATTRIBUTE(guc_registered_contexts);
> +
> void intel_guc_debugfs_register(struct intel_guc *guc, struct dentry *root)
> {
> static const struct debugfs_gt_file files[] = {
> { "guc_info", &guc_info_fops, NULL },
> + { "guc_registered_contexts", &guc_registered_contexts_fops, NULL },
> };
>
> if (!intel_guc_is_supported(guc))
> 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 d1a28283a9ae..89b3c7e5d15b 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
> @@ -1600,3 +1600,55 @@ int intel_guc_sched_done_process_msg(struct intel_guc *guc,
>
> return 0;
> }
> +
> +void intel_guc_log_submission_info(struct intel_guc *guc,
use correct prefix:
void intel_guc_submission_print_info(struct intel_guc *guc,
> + struct drm_printer *p)
> +{
> + struct i915_sched_engine *sched_engine = guc->sched_engine;
> + struct rb_node *rb;
> + unsigned long flags;
> +
> + drm_printf(p, "GuC Number Outstanding Submission G2H: %u\n",
> + atomic_read(&guc->outstanding_submission_g2h));
> + drm_printf(p, "GuC tasklet count: %u\n\n",
> + atomic_read(&sched_engine->tasklet.count));
> +
> + spin_lock_irqsave(&sched_engine->lock, flags);
> + drm_printf(p, "Requests in GuC submit tasklet:\n");
> + for (rb = rb_first_cached(&sched_engine->queue); rb; rb = rb_next(rb)) {
> + struct i915_priolist *pl = to_priolist(rb);
> + struct i915_request *rq;
> +
> + priolist_for_each_request(rq, pl)
> + drm_printf(p, "guc_id=%u, seqno=%llu\n",
> + rq->context->guc_id,
> + rq->fence.seqno);
> + }
> + spin_unlock_irqrestore(&sched_engine->lock, flags);
> + drm_printf(p, "\n");
> +}
> +
> +void intel_guc_log_context_info(struct intel_guc *guc,
use correct prefix:
void intel_guc_submission_print_context_info(struct intel_guc *guc,
Michal
> + struct drm_printer *p)
> +{
> + struct intel_context *ce;
> + unsigned long index;
> +
> + xa_for_each(&guc->context_lookup, index, ce) {
> + drm_printf(p, "GuC lrc descriptor %u:\n", ce->guc_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, 0x%x\n\n",
> + ce->guc_state.sched_state,
> + atomic_read(&ce->guc_sched_state_no_lock));
> + }
> +}
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
> index 3f7005018939..6453e2bfa151 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
> @@ -10,6 +10,7 @@
>
> #include "intel_guc.h"
>
> +struct drm_printer;
> struct intel_engine_cs;
>
> void intel_guc_submission_init_early(struct intel_guc *guc);
> @@ -20,6 +21,9 @@ void intel_guc_submission_fini(struct intel_guc *guc);
> int intel_guc_preempt_work_create(struct intel_guc *guc);
> void intel_guc_preempt_work_destroy(struct intel_guc *guc);
> int intel_guc_submission_setup(struct intel_engine_cs *engine);
> +void intel_guc_log_submission_info(struct intel_guc *guc,
> + struct drm_printer *p);
> +void intel_guc_log_context_info(struct intel_guc *guc, struct drm_printer *p);
>
> static inline bool intel_guc_submission_is_supported(struct intel_guc *guc)
> {
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 277800987bf8..a9084789deff 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -50,6 +50,7 @@
> #include "i915_trace.h"
> #include "intel_pm.h"
> #include "intel_sideband.h"
> +#include "gt/intel_lrc_reg.h"
>
> static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node)
> {
>
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