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-rw-r--r--rr-cache/e7c9aafc2297a37f89715cfeed48ccbfb82f76bb/preimage.12244
1 files changed, 0 insertions, 2244 deletions
diff --git a/rr-cache/e7c9aafc2297a37f89715cfeed48ccbfb82f76bb/preimage.1 b/rr-cache/e7c9aafc2297a37f89715cfeed48ccbfb82f76bb/preimage.1
deleted file mode 100644
index cb13209846cb..000000000000
--- a/rr-cache/e7c9aafc2297a37f89715cfeed48ccbfb82f76bb/preimage.1
+++ /dev/null
@@ -1,2244 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright © 2022 Intel Corporation
- */
-
-#include "xe_guc_submit.h"
-
-#include <linux/bitfield.h>
-#include <linux/bitmap.h>
-#include <linux/circ_buf.h>
-#include <linux/delay.h>
-#include <linux/dma-fence-array.h>
-#include <linux/math64.h>
-
-#include <drm/drm_managed.h>
-
-#include "abi/guc_actions_abi.h"
-#include "abi/guc_klvs_abi.h"
-#include "regs/xe_lrc_layout.h"
-#include "xe_assert.h"
-#include "xe_devcoredump.h"
-#include "xe_device.h"
-#include "xe_exec_queue.h"
-#include "xe_force_wake.h"
-#include "xe_gpu_scheduler.h"
-#include "xe_gt.h"
-#include "xe_gt_clock.h"
-#include "xe_gt_printk.h"
-#include "xe_guc.h"
-#include "xe_guc_ct.h"
-#include "xe_guc_exec_queue_types.h"
-#include "xe_guc_id_mgr.h"
-#include "xe_guc_submit_types.h"
-#include "xe_hw_engine.h"
-#include "xe_hw_fence.h"
-#include "xe_lrc.h"
-#include "xe_macros.h"
-#include "xe_map.h"
-#include "xe_mocs.h"
-#include "xe_pm.h"
-#include "xe_ring_ops_types.h"
-#include "xe_sched_job.h"
-#include "xe_trace.h"
-#include "xe_vm.h"
-
-static struct xe_guc *
-exec_queue_to_guc(struct xe_exec_queue *q)
-{
- return &q->gt->uc.guc;
-}
-
-/*
- * Helpers for engine state, using an atomic as some of the bits can transition
- * as the same time (e.g. a suspend can be happning at the same time as schedule
- * engine done being processed).
- */
-#define EXEC_QUEUE_STATE_REGISTERED (1 << 0)
-#define EXEC_QUEUE_STATE_ENABLED (1 << 1)
-#define EXEC_QUEUE_STATE_PENDING_ENABLE (1 << 2)
-#define EXEC_QUEUE_STATE_PENDING_DISABLE (1 << 3)
-#define EXEC_QUEUE_STATE_DESTROYED (1 << 4)
-#define EXEC_QUEUE_STATE_SUSPENDED (1 << 5)
-#define EXEC_QUEUE_STATE_RESET (1 << 6)
-#define EXEC_QUEUE_STATE_KILLED (1 << 7)
-#define EXEC_QUEUE_STATE_WEDGED (1 << 8)
-#define EXEC_QUEUE_STATE_BANNED (1 << 9)
-#define EXEC_QUEUE_STATE_CHECK_TIMEOUT (1 << 10)
-#define EXEC_QUEUE_STATE_EXTRA_REF (1 << 11)
-
-static bool exec_queue_registered(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_REGISTERED;
-}
-
-static void set_exec_queue_registered(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_REGISTERED, &q->guc->state);
-}
-
-static void clear_exec_queue_registered(struct xe_exec_queue *q)
-{
- atomic_and(~EXEC_QUEUE_STATE_REGISTERED, &q->guc->state);
-}
-
-static bool exec_queue_enabled(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_ENABLED;
-}
-
-static void set_exec_queue_enabled(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_ENABLED, &q->guc->state);
-}
-
-static void clear_exec_queue_enabled(struct xe_exec_queue *q)
-{
- atomic_and(~EXEC_QUEUE_STATE_ENABLED, &q->guc->state);
-}
-
-static bool exec_queue_pending_enable(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_PENDING_ENABLE;
-}
-
-static void set_exec_queue_pending_enable(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_PENDING_ENABLE, &q->guc->state);
-}
-
-static void clear_exec_queue_pending_enable(struct xe_exec_queue *q)
-{
- atomic_and(~EXEC_QUEUE_STATE_PENDING_ENABLE, &q->guc->state);
-}
-
-static bool exec_queue_pending_disable(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_PENDING_DISABLE;
-}
-
-static void set_exec_queue_pending_disable(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_PENDING_DISABLE, &q->guc->state);
-}
-
-static void clear_exec_queue_pending_disable(struct xe_exec_queue *q)
-{
- atomic_and(~EXEC_QUEUE_STATE_PENDING_DISABLE, &q->guc->state);
-}
-
-static bool exec_queue_destroyed(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_DESTROYED;
-}
-
-static void set_exec_queue_destroyed(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_DESTROYED, &q->guc->state);
-}
-
-static bool exec_queue_banned(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_BANNED;
-}
-
-static void set_exec_queue_banned(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_BANNED, &q->guc->state);
-}
-
-static bool exec_queue_suspended(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_SUSPENDED;
-}
-
-static void set_exec_queue_suspended(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_SUSPENDED, &q->guc->state);
-}
-
-static void clear_exec_queue_suspended(struct xe_exec_queue *q)
-{
- atomic_and(~EXEC_QUEUE_STATE_SUSPENDED, &q->guc->state);
-}
-
-static bool exec_queue_reset(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_RESET;
-}
-
-static void set_exec_queue_reset(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_RESET, &q->guc->state);
-}
-
-static bool exec_queue_killed(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_KILLED;
-}
-
-static void set_exec_queue_killed(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_KILLED, &q->guc->state);
-}
-
-static bool exec_queue_wedged(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_WEDGED;
-}
-
-static void set_exec_queue_wedged(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_WEDGED, &q->guc->state);
-}
-
-static bool exec_queue_check_timeout(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_CHECK_TIMEOUT;
-}
-
-static void set_exec_queue_check_timeout(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_CHECK_TIMEOUT, &q->guc->state);
-}
-
-static void clear_exec_queue_check_timeout(struct xe_exec_queue *q)
-{
- atomic_and(~EXEC_QUEUE_STATE_CHECK_TIMEOUT, &q->guc->state);
-}
-
-static bool exec_queue_extra_ref(struct xe_exec_queue *q)
-{
- return atomic_read(&q->guc->state) & EXEC_QUEUE_STATE_EXTRA_REF;
-}
-
-static void set_exec_queue_extra_ref(struct xe_exec_queue *q)
-{
- atomic_or(EXEC_QUEUE_STATE_EXTRA_REF, &q->guc->state);
-}
-
-static bool exec_queue_killed_or_banned_or_wedged(struct xe_exec_queue *q)
-{
- return (atomic_read(&q->guc->state) &
- (EXEC_QUEUE_STATE_WEDGED | EXEC_QUEUE_STATE_KILLED |
- EXEC_QUEUE_STATE_BANNED));
-}
-
-#ifdef CONFIG_PROVE_LOCKING
-static int alloc_submit_wq(struct xe_guc *guc)
-{
- int i;
-
- for (i = 0; i < NUM_SUBMIT_WQ; ++i) {
- guc->submission_state.submit_wq_pool[i] =
- alloc_ordered_workqueue("submit_wq", 0);
- if (!guc->submission_state.submit_wq_pool[i])
- goto err_free;
- }
-
- return 0;
-
-err_free:
- while (i)
- destroy_workqueue(guc->submission_state.submit_wq_pool[--i]);
-
- return -ENOMEM;
-}
-
-static void free_submit_wq(struct xe_guc *guc)
-{
- int i;
-
- for (i = 0; i < NUM_SUBMIT_WQ; ++i)
- destroy_workqueue(guc->submission_state.submit_wq_pool[i]);
-}
-
-static struct workqueue_struct *get_submit_wq(struct xe_guc *guc)
-{
- int idx = guc->submission_state.submit_wq_idx++ % NUM_SUBMIT_WQ;
-
- return guc->submission_state.submit_wq_pool[idx];
-}
-#else
-static int alloc_submit_wq(struct xe_guc *guc)
-{
- return 0;
-}
-
-static void free_submit_wq(struct xe_guc *guc)
-{
-
-}
-
-static struct workqueue_struct *get_submit_wq(struct xe_guc *guc)
-{
- return NULL;
-}
-#endif
-
-static void guc_submit_fini(struct drm_device *drm, void *arg)
-{
- struct xe_guc *guc = arg;
-
- xa_destroy(&guc->submission_state.exec_queue_lookup);
- free_submit_wq(guc);
-}
-
-static void guc_submit_wedged_fini(struct drm_device *drm, void *arg)
-{
- struct xe_guc *guc = arg;
- struct xe_exec_queue *q;
- unsigned long index;
-
- xa_for_each(&guc->submission_state.exec_queue_lookup, index, q)
- if (exec_queue_wedged(q))
- xe_exec_queue_put(q);
-}
-
-static const struct xe_exec_queue_ops guc_exec_queue_ops;
-
-static void primelockdep(struct xe_guc *guc)
-{
- if (!IS_ENABLED(CONFIG_LOCKDEP))
- return;
-
- fs_reclaim_acquire(GFP_KERNEL);
-
- mutex_lock(&guc->submission_state.lock);
- mutex_unlock(&guc->submission_state.lock);
-
- fs_reclaim_release(GFP_KERNEL);
-}
-
-/**
- * xe_guc_submit_init() - Initialize GuC submission.
- * @guc: the &xe_guc to initialize
- * @num_ids: number of GuC context IDs to use
- *
- * The bare-metal or PF driver can pass ~0 as &num_ids to indicate that all
- * GuC context IDs supported by the GuC firmware should be used for submission.
- *
- * Only VF drivers will have to provide explicit number of GuC context IDs
- * that they can use for submission.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int xe_guc_submit_init(struct xe_guc *guc, unsigned int num_ids)
-{
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_gt *gt = guc_to_gt(guc);
- int err;
-
- err = drmm_mutex_init(&xe->drm, &guc->submission_state.lock);
- if (err)
- return err;
-
- err = xe_guc_id_mgr_init(&guc->submission_state.idm, num_ids);
- if (err)
- return err;
-
- err = alloc_submit_wq(guc);
- if (err)
- return err;
-
- gt->exec_queue_ops = &guc_exec_queue_ops;
-
- xa_init(&guc->submission_state.exec_queue_lookup);
-
- primelockdep(guc);
-
- return drmm_add_action_or_reset(&xe->drm, guc_submit_fini, guc);
-}
-
-static void __release_guc_id(struct xe_guc *guc, struct xe_exec_queue *q, u32 xa_count)
-{
- int i;
-
- lockdep_assert_held(&guc->submission_state.lock);
-
- for (i = 0; i < xa_count; ++i)
- xa_erase(&guc->submission_state.exec_queue_lookup, q->guc->id + i);
-
- xe_guc_id_mgr_release_locked(&guc->submission_state.idm,
- q->guc->id, q->width);
-}
-
-static int alloc_guc_id(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- int ret;
- void *ptr;
- int i;
-
- /*
- * Must use GFP_NOWAIT as this lock is in the dma fence signalling path,
- * worse case user gets -ENOMEM on engine create and has to try again.
- *
- * FIXME: Have caller pre-alloc or post-alloc /w GFP_KERNEL to prevent
- * failure.
- */
- lockdep_assert_held(&guc->submission_state.lock);
-
- ret = xe_guc_id_mgr_reserve_locked(&guc->submission_state.idm,
- q->width);
- if (ret < 0)
- return ret;
-
- q->guc->id = ret;
-
- for (i = 0; i < q->width; ++i) {
- ptr = xa_store(&guc->submission_state.exec_queue_lookup,
- q->guc->id + i, q, GFP_NOWAIT);
- if (IS_ERR(ptr)) {
- ret = PTR_ERR(ptr);
- goto err_release;
- }
- }
-
- return 0;
-
-err_release:
- __release_guc_id(guc, q, i);
-
- return ret;
-}
-
-static void release_guc_id(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- mutex_lock(&guc->submission_state.lock);
- __release_guc_id(guc, q, q->width);
- mutex_unlock(&guc->submission_state.lock);
-}
-
-struct exec_queue_policy {
- u32 count;
- struct guc_update_exec_queue_policy h2g;
-};
-
-static u32 __guc_exec_queue_policy_action_size(struct exec_queue_policy *policy)
-{
- size_t bytes = sizeof(policy->h2g.header) +
- (sizeof(policy->h2g.klv[0]) * policy->count);
-
- return bytes / sizeof(u32);
-}
-
-static void __guc_exec_queue_policy_start_klv(struct exec_queue_policy *policy,
- u16 guc_id)
-{
- policy->h2g.header.action =
- XE_GUC_ACTION_HOST2GUC_UPDATE_CONTEXT_POLICIES;
- policy->h2g.header.guc_id = guc_id;
- policy->count = 0;
-}
-
-#define MAKE_EXEC_QUEUE_POLICY_ADD(func, id) \
-static void __guc_exec_queue_policy_add_##func(struct exec_queue_policy *policy, \
- u32 data) \
-{ \
- XE_WARN_ON(policy->count >= GUC_CONTEXT_POLICIES_KLV_NUM_IDS); \
-\
- policy->h2g.klv[policy->count].kl = \
- FIELD_PREP(GUC_KLV_0_KEY, \
- GUC_CONTEXT_POLICIES_KLV_ID_##id) | \
- FIELD_PREP(GUC_KLV_0_LEN, 1); \
- policy->h2g.klv[policy->count].value = data; \
- policy->count++; \
-}
-
-MAKE_EXEC_QUEUE_POLICY_ADD(execution_quantum, EXECUTION_QUANTUM)
-MAKE_EXEC_QUEUE_POLICY_ADD(preemption_timeout, PREEMPTION_TIMEOUT)
-MAKE_EXEC_QUEUE_POLICY_ADD(priority, SCHEDULING_PRIORITY)
-#undef MAKE_EXEC_QUEUE_POLICY_ADD
-
-static const int xe_exec_queue_prio_to_guc[] = {
- [XE_EXEC_QUEUE_PRIORITY_LOW] = GUC_CLIENT_PRIORITY_NORMAL,
- [XE_EXEC_QUEUE_PRIORITY_NORMAL] = GUC_CLIENT_PRIORITY_KMD_NORMAL,
- [XE_EXEC_QUEUE_PRIORITY_HIGH] = GUC_CLIENT_PRIORITY_HIGH,
- [XE_EXEC_QUEUE_PRIORITY_KERNEL] = GUC_CLIENT_PRIORITY_KMD_HIGH,
-};
-
-static void init_policies(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- struct exec_queue_policy policy;
- struct xe_device *xe = guc_to_xe(guc);
- enum xe_exec_queue_priority prio = q->sched_props.priority;
- u32 timeslice_us = q->sched_props.timeslice_us;
- u32 preempt_timeout_us = q->sched_props.preempt_timeout_us;
-
- xe_assert(xe, exec_queue_registered(q));
-
- __guc_exec_queue_policy_start_klv(&policy, q->guc->id);
- __guc_exec_queue_policy_add_priority(&policy, xe_exec_queue_prio_to_guc[prio]);
- __guc_exec_queue_policy_add_execution_quantum(&policy, timeslice_us);
- __guc_exec_queue_policy_add_preemption_timeout(&policy, preempt_timeout_us);
-
- xe_guc_ct_send(&guc->ct, (u32 *)&policy.h2g,
- __guc_exec_queue_policy_action_size(&policy), 0, 0);
-}
-
-static void set_min_preemption_timeout(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- struct exec_queue_policy policy;
-
- __guc_exec_queue_policy_start_klv(&policy, q->guc->id);
- __guc_exec_queue_policy_add_preemption_timeout(&policy, 1);
-
- xe_guc_ct_send(&guc->ct, (u32 *)&policy.h2g,
- __guc_exec_queue_policy_action_size(&policy), 0, 0);
-}
-
-#define parallel_read(xe_, map_, field_) \
- xe_map_rd_field(xe_, &map_, 0, struct guc_submit_parallel_scratch, \
- field_)
-#define parallel_write(xe_, map_, field_, val_) \
- xe_map_wr_field(xe_, &map_, 0, struct guc_submit_parallel_scratch, \
- field_, val_)
-
-static void __register_mlrc_exec_queue(struct xe_guc *guc,
- struct xe_exec_queue *q,
- struct guc_ctxt_registration_info *info)
-{
-#define MAX_MLRC_REG_SIZE (13 + XE_HW_ENGINE_MAX_INSTANCE * 2)
- struct xe_device *xe = guc_to_xe(guc);
- u32 action[MAX_MLRC_REG_SIZE];
- int len = 0;
- int i;
-
- xe_assert(xe, xe_exec_queue_is_parallel(q));
-
- action[len++] = XE_GUC_ACTION_REGISTER_CONTEXT_MULTI_LRC;
- action[len++] = info->flags;
- action[len++] = info->context_idx;
- action[len++] = info->engine_class;
- action[len++] = info->engine_submit_mask;
- action[len++] = info->wq_desc_lo;
- action[len++] = info->wq_desc_hi;
- action[len++] = info->wq_base_lo;
- action[len++] = info->wq_base_hi;
- action[len++] = info->wq_size;
- action[len++] = q->width;
- action[len++] = info->hwlrca_lo;
- action[len++] = info->hwlrca_hi;
-
- for (i = 1; i < q->width; ++i) {
- struct xe_lrc *lrc = q->lrc[i];
-
- action[len++] = lower_32_bits(xe_lrc_descriptor(lrc));
- action[len++] = upper_32_bits(xe_lrc_descriptor(lrc));
- }
-
- xe_assert(xe, len <= MAX_MLRC_REG_SIZE);
-#undef MAX_MLRC_REG_SIZE
-
- xe_guc_ct_send(&guc->ct, action, len, 0, 0);
-}
-
-static void __register_exec_queue(struct xe_guc *guc,
- struct guc_ctxt_registration_info *info)
-{
- u32 action[] = {
- XE_GUC_ACTION_REGISTER_CONTEXT,
- info->flags,
- info->context_idx,
- info->engine_class,
- info->engine_submit_mask,
- info->wq_desc_lo,
- info->wq_desc_hi,
- info->wq_base_lo,
- info->wq_base_hi,
- info->wq_size,
- info->hwlrca_lo,
- info->hwlrca_hi,
- };
-
- xe_guc_ct_send(&guc->ct, action, ARRAY_SIZE(action), 0, 0);
-}
-
-static void register_exec_queue(struct xe_exec_queue *q)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_lrc *lrc = q->lrc[0];
- struct guc_ctxt_registration_info info;
-
- xe_assert(xe, !exec_queue_registered(q));
-
- memset(&info, 0, sizeof(info));
- info.context_idx = q->guc->id;
- info.engine_class = xe_engine_class_to_guc_class(q->class);
- info.engine_submit_mask = q->logical_mask;
- info.hwlrca_lo = lower_32_bits(xe_lrc_descriptor(lrc));
- info.hwlrca_hi = upper_32_bits(xe_lrc_descriptor(lrc));
- info.flags = CONTEXT_REGISTRATION_FLAG_KMD;
-
- if (xe_exec_queue_is_parallel(q)) {
- u64 ggtt_addr = xe_lrc_parallel_ggtt_addr(lrc);
- struct iosys_map map = xe_lrc_parallel_map(lrc);
-
- info.wq_desc_lo = lower_32_bits(ggtt_addr +
- offsetof(struct guc_submit_parallel_scratch, wq_desc));
- info.wq_desc_hi = upper_32_bits(ggtt_addr +
- offsetof(struct guc_submit_parallel_scratch, wq_desc));
- info.wq_base_lo = lower_32_bits(ggtt_addr +
- offsetof(struct guc_submit_parallel_scratch, wq[0]));
- info.wq_base_hi = upper_32_bits(ggtt_addr +
- offsetof(struct guc_submit_parallel_scratch, wq[0]));
- info.wq_size = WQ_SIZE;
-
- q->guc->wqi_head = 0;
- q->guc->wqi_tail = 0;
- xe_map_memset(xe, &map, 0, 0, PARALLEL_SCRATCH_SIZE - WQ_SIZE);
- parallel_write(xe, map, wq_desc.wq_status, WQ_STATUS_ACTIVE);
- }
-
- /*
- * We must keep a reference for LR engines if engine is registered with
- * the GuC as jobs signal immediately and can't destroy an engine if the
- * GuC has a reference to it.
- */
- if (xe_exec_queue_is_lr(q))
- xe_exec_queue_get(q);
-
- set_exec_queue_registered(q);
- trace_xe_exec_queue_register(q);
- if (xe_exec_queue_is_parallel(q))
- __register_mlrc_exec_queue(guc, q, &info);
- else
- __register_exec_queue(guc, &info);
- init_policies(guc, q);
-}
-
-static u32 wq_space_until_wrap(struct xe_exec_queue *q)
-{
- return (WQ_SIZE - q->guc->wqi_tail);
-}
-
-static int wq_wait_for_space(struct xe_exec_queue *q, u32 wqi_size)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- struct iosys_map map = xe_lrc_parallel_map(q->lrc[0]);
- unsigned int sleep_period_ms = 1;
-
-#define AVAILABLE_SPACE \
- CIRC_SPACE(q->guc->wqi_tail, q->guc->wqi_head, WQ_SIZE)
- if (wqi_size > AVAILABLE_SPACE) {
-try_again:
- q->guc->wqi_head = parallel_read(xe, map, wq_desc.head);
- if (wqi_size > AVAILABLE_SPACE) {
- if (sleep_period_ms == 1024) {
- xe_gt_reset_async(q->gt);
- return -ENODEV;
- }
-
- msleep(sleep_period_ms);
- sleep_period_ms <<= 1;
- goto try_again;
- }
- }
-#undef AVAILABLE_SPACE
-
- return 0;
-}
-
-static int wq_noop_append(struct xe_exec_queue *q)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- struct iosys_map map = xe_lrc_parallel_map(q->lrc[0]);
- u32 len_dw = wq_space_until_wrap(q) / sizeof(u32) - 1;
-
- if (wq_wait_for_space(q, wq_space_until_wrap(q)))
- return -ENODEV;
-
- xe_assert(xe, FIELD_FIT(WQ_LEN_MASK, len_dw));
-
- parallel_write(xe, map, wq[q->guc->wqi_tail / sizeof(u32)],
- FIELD_PREP(WQ_TYPE_MASK, WQ_TYPE_NOOP) |
- FIELD_PREP(WQ_LEN_MASK, len_dw));
- q->guc->wqi_tail = 0;
-
- return 0;
-}
-
-static void wq_item_append(struct xe_exec_queue *q)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- struct iosys_map map = xe_lrc_parallel_map(q->lrc[0]);
-#define WQ_HEADER_SIZE 4 /* Includes 1 LRC address too */
- u32 wqi[XE_HW_ENGINE_MAX_INSTANCE + (WQ_HEADER_SIZE - 1)];
- u32 wqi_size = (q->width + (WQ_HEADER_SIZE - 1)) * sizeof(u32);
- u32 len_dw = (wqi_size / sizeof(u32)) - 1;
- int i = 0, j;
-
- if (wqi_size > wq_space_until_wrap(q)) {
- if (wq_noop_append(q))
- return;
- }
- if (wq_wait_for_space(q, wqi_size))
- return;
-
- wqi[i++] = FIELD_PREP(WQ_TYPE_MASK, WQ_TYPE_MULTI_LRC) |
- FIELD_PREP(WQ_LEN_MASK, len_dw);
- wqi[i++] = xe_lrc_descriptor(q->lrc[0]);
- wqi[i++] = FIELD_PREP(WQ_GUC_ID_MASK, q->guc->id) |
- FIELD_PREP(WQ_RING_TAIL_MASK, q->lrc[0]->ring.tail / sizeof(u64));
- wqi[i++] = 0;
- for (j = 1; j < q->width; ++j) {
- struct xe_lrc *lrc = q->lrc[j];
-
- wqi[i++] = lrc->ring.tail / sizeof(u64);
- }
-
- xe_assert(xe, i == wqi_size / sizeof(u32));
-
- iosys_map_incr(&map, offsetof(struct guc_submit_parallel_scratch,
- wq[q->guc->wqi_tail / sizeof(u32)]));
- xe_map_memcpy_to(xe, &map, 0, wqi, wqi_size);
- q->guc->wqi_tail += wqi_size;
- xe_assert(xe, q->guc->wqi_tail <= WQ_SIZE);
-
- xe_device_wmb(xe);
-
- map = xe_lrc_parallel_map(q->lrc[0]);
- parallel_write(xe, map, wq_desc.tail, q->guc->wqi_tail);
-}
-
-#define RESUME_PENDING ~0x0ull
-static void submit_exec_queue(struct xe_exec_queue *q)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_lrc *lrc = q->lrc[0];
- u32 action[3];
- u32 g2h_len = 0;
- u32 num_g2h = 0;
- int len = 0;
- bool extra_submit = false;
-
- xe_assert(xe, exec_queue_registered(q));
-
- if (xe_exec_queue_is_parallel(q))
- wq_item_append(q);
- else
- xe_lrc_set_ring_tail(lrc, lrc->ring.tail);
-
- if (exec_queue_suspended(q) && !xe_exec_queue_is_parallel(q))
- return;
-
- if (!exec_queue_enabled(q) && !exec_queue_suspended(q)) {
- action[len++] = XE_GUC_ACTION_SCHED_CONTEXT_MODE_SET;
- action[len++] = q->guc->id;
- action[len++] = GUC_CONTEXT_ENABLE;
- g2h_len = G2H_LEN_DW_SCHED_CONTEXT_MODE_SET;
- num_g2h = 1;
- if (xe_exec_queue_is_parallel(q))
- extra_submit = true;
-
- q->guc->resume_time = RESUME_PENDING;
- set_exec_queue_pending_enable(q);
- set_exec_queue_enabled(q);
- trace_xe_exec_queue_scheduling_enable(q);
- } else {
- action[len++] = XE_GUC_ACTION_SCHED_CONTEXT;
- action[len++] = q->guc->id;
- trace_xe_exec_queue_submit(q);
- }
-
- xe_guc_ct_send(&guc->ct, action, len, g2h_len, num_g2h);
-
- if (extra_submit) {
- len = 0;
- action[len++] = XE_GUC_ACTION_SCHED_CONTEXT;
- action[len++] = q->guc->id;
- trace_xe_exec_queue_submit(q);
-
- xe_guc_ct_send(&guc->ct, action, len, 0, 0);
- }
-}
-
-static struct dma_fence *
-guc_exec_queue_run_job(struct drm_sched_job *drm_job)
-{
- struct xe_sched_job *job = to_xe_sched_job(drm_job);
- struct xe_exec_queue *q = job->q;
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- bool lr = xe_exec_queue_is_lr(q);
-
- xe_assert(xe, !(exec_queue_destroyed(q) || exec_queue_pending_disable(q)) ||
- exec_queue_banned(q) || exec_queue_suspended(q));
-
- trace_xe_sched_job_run(job);
-
- if (!exec_queue_killed_or_banned_or_wedged(q) && !xe_sched_job_is_error(job)) {
- if (!exec_queue_registered(q))
- register_exec_queue(q);
- if (!lr) /* LR jobs are emitted in the exec IOCTL */
- q->ring_ops->emit_job(job);
- submit_exec_queue(q);
- }
-
- if (lr) {
- xe_sched_job_set_error(job, -EOPNOTSUPP);
- return NULL;
- } else if (test_and_set_bit(JOB_FLAG_SUBMIT, &job->fence->flags)) {
- return job->fence;
- } else {
- return dma_fence_get(job->fence);
- }
-}
-
-static void guc_exec_queue_free_job(struct drm_sched_job *drm_job)
-{
- struct xe_sched_job *job = to_xe_sched_job(drm_job);
-
- xe_exec_queue_update_run_ticks(job->q);
-
- trace_xe_sched_job_free(job);
- xe_sched_job_put(job);
-}
-
-static int guc_read_stopped(struct xe_guc *guc)
-{
- return atomic_read(&guc->submission_state.stopped);
-}
-
-#define MAKE_SCHED_CONTEXT_ACTION(q, enable_disable) \
- u32 action[] = { \
- XE_GUC_ACTION_SCHED_CONTEXT_MODE_SET, \
- q->guc->id, \
- GUC_CONTEXT_##enable_disable, \
- }
-
-static void disable_scheduling_deregister(struct xe_guc *guc,
- struct xe_exec_queue *q)
-{
- MAKE_SCHED_CONTEXT_ACTION(q, DISABLE);
- struct xe_device *xe = guc_to_xe(guc);
- int ret;
-
- set_min_preemption_timeout(guc, q);
- smp_rmb();
- ret = wait_event_timeout(guc->ct.wq, !exec_queue_pending_enable(q) ||
- guc_read_stopped(guc), HZ * 5);
- if (!ret) {
- struct xe_gpu_scheduler *sched = &q->guc->sched;
-
- drm_warn(&xe->drm, "Pending enable failed to respond");
- xe_sched_submission_start(sched);
- xe_gt_reset_async(q->gt);
- xe_sched_tdr_queue_imm(sched);
- return;
- }
-
- clear_exec_queue_enabled(q);
- set_exec_queue_pending_disable(q);
- set_exec_queue_destroyed(q);
- trace_xe_exec_queue_scheduling_disable(q);
-
- /*
- * Reserve space for both G2H here as the 2nd G2H is sent from a G2H
- * handler and we are not allowed to reserved G2H space in handlers.
- */
- xe_guc_ct_send(&guc->ct, action, ARRAY_SIZE(action),
- G2H_LEN_DW_SCHED_CONTEXT_MODE_SET +
- G2H_LEN_DW_DEREGISTER_CONTEXT, 2);
-}
-
-static void xe_guc_exec_queue_trigger_cleanup(struct xe_exec_queue *q)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
-
- /** to wakeup xe_wait_user_fence ioctl if exec queue is reset */
- wake_up_all(&xe->ufence_wq);
-
- if (xe_exec_queue_is_lr(q))
- queue_work(guc_to_gt(guc)->ordered_wq, &q->guc->lr_tdr);
- else
- xe_sched_tdr_queue_imm(&q->guc->sched);
-}
-
-/**
- * xe_guc_submit_wedge() - Wedge GuC submission
- * @guc: the GuC object
- *
- * Save exec queue's registered with GuC state by taking a ref to each queue.
- * Register a DRMM handler to drop refs upon driver unload.
- */
-void xe_guc_submit_wedge(struct xe_guc *guc)
-{
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_exec_queue *q;
- unsigned long index;
- int err;
-
- xe_gt_assert(guc_to_gt(guc), guc_to_xe(guc)->wedged.mode);
-
- err = drmm_add_action_or_reset(&guc_to_xe(guc)->drm,
- guc_submit_wedged_fini, guc);
- if (err) {
- drm_err(&xe->drm, "Failed to register xe_guc_submit clean-up on wedged.mode=2. Although device is wedged.\n");
- return;
- }
-
- mutex_lock(&guc->submission_state.lock);
- xa_for_each(&guc->submission_state.exec_queue_lookup, index, q)
- if (xe_exec_queue_get_unless_zero(q))
- set_exec_queue_wedged(q);
- mutex_unlock(&guc->submission_state.lock);
-}
-
-static bool guc_submit_hint_wedged(struct xe_guc *guc)
-{
- struct xe_device *xe = guc_to_xe(guc);
-
- if (xe->wedged.mode != 2)
- return false;
-
- if (xe_device_wedged(xe))
- return true;
-
- xe_device_declare_wedged(xe);
-
- return true;
-}
-
-static void xe_guc_exec_queue_lr_cleanup(struct work_struct *w)
-{
- struct xe_guc_exec_queue *ge =
- container_of(w, struct xe_guc_exec_queue, lr_tdr);
- struct xe_exec_queue *q = ge->q;
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_gpu_scheduler *sched = &ge->sched;
- bool wedged;
-
- xe_assert(xe, xe_exec_queue_is_lr(q));
- trace_xe_exec_queue_lr_cleanup(q);
-
- wedged = guc_submit_hint_wedged(exec_queue_to_guc(q));
-
- /* Kill the run_job / process_msg entry points */
- xe_sched_submission_stop(sched);
-
- /*
- * Engine state now mostly stable, disable scheduling / deregister if
- * needed. This cleanup routine might be called multiple times, where
- * the actual async engine deregister drops the final engine ref.
- * Calling disable_scheduling_deregister will mark the engine as
- * destroyed and fire off the CT requests to disable scheduling /
- * deregister, which we only want to do once. We also don't want to mark
- * the engine as pending_disable again as this may race with the
- * xe_guc_deregister_done_handler() which treats it as an unexpected
- * state.
- */
- if (!wedged && exec_queue_registered(q) && !exec_queue_destroyed(q)) {
- struct xe_guc *guc = exec_queue_to_guc(q);
- int ret;
-
- set_exec_queue_banned(q);
- disable_scheduling_deregister(guc, q);
-
- /*
- * Must wait for scheduling to be disabled before signalling
- * any fences, if GT broken the GT reset code should signal us.
- */
- ret = wait_event_timeout(guc->ct.wq,
- !exec_queue_pending_disable(q) ||
- guc_read_stopped(guc), HZ * 5);
- if (!ret) {
- drm_warn(&xe->drm, "Schedule disable failed to respond");
- xe_sched_submission_start(sched);
- xe_gt_reset_async(q->gt);
- return;
- }
- }
-
- xe_sched_submission_start(sched);
-}
-
-#define ADJUST_FIVE_PERCENT(__t) mul_u64_u32_div(__t, 105, 100)
-
-static bool check_timeout(struct xe_exec_queue *q, struct xe_sched_job *job)
-{
- struct xe_gt *gt = guc_to_gt(exec_queue_to_guc(q));
- u32 ctx_timestamp = xe_lrc_ctx_timestamp(q->lrc[0]);
- u32 ctx_job_timestamp = xe_lrc_ctx_job_timestamp(q->lrc[0]);
- u32 timeout_ms = q->sched_props.job_timeout_ms;
- u32 diff;
- u64 running_time_ms;
-
- /*
- * Counter wraps at ~223s at the usual 19.2MHz, be paranoid catch
- * possible overflows with a high timeout.
- */
- xe_gt_assert(gt, timeout_ms < 100 * MSEC_PER_SEC);
-
- if (ctx_timestamp < ctx_job_timestamp)
- diff = ctx_timestamp + U32_MAX - ctx_job_timestamp;
- else
- diff = ctx_timestamp - ctx_job_timestamp;
-
- /*
- * Ensure timeout is within 5% to account for an GuC scheduling latency
- */
- running_time_ms =
- ADJUST_FIVE_PERCENT(xe_gt_clock_interval_to_ms(gt, diff));
-
- xe_gt_dbg(gt,
- "Check job timeout: seqno=%u, lrc_seqno=%u, guc_id=%d, running_time_ms=%llu, timeout_ms=%u, diff=0x%08x",
- xe_sched_job_seqno(job), xe_sched_job_lrc_seqno(job),
- q->guc->id, running_time_ms, timeout_ms, diff);
-
- return running_time_ms >= timeout_ms;
-}
-
-static void enable_scheduling(struct xe_exec_queue *q)
-{
- MAKE_SCHED_CONTEXT_ACTION(q, ENABLE);
- struct xe_guc *guc = exec_queue_to_guc(q);
- int ret;
-
- xe_gt_assert(guc_to_gt(guc), !exec_queue_destroyed(q));
- xe_gt_assert(guc_to_gt(guc), exec_queue_registered(q));
- xe_gt_assert(guc_to_gt(guc), !exec_queue_pending_disable(q));
- xe_gt_assert(guc_to_gt(guc), !exec_queue_pending_enable(q));
-
- set_exec_queue_pending_enable(q);
- set_exec_queue_enabled(q);
- trace_xe_exec_queue_scheduling_enable(q);
-
- xe_guc_ct_send(&guc->ct, action, ARRAY_SIZE(action),
- G2H_LEN_DW_SCHED_CONTEXT_MODE_SET, 1);
-
- ret = wait_event_timeout(guc->ct.wq,
- !exec_queue_pending_enable(q) ||
- guc_read_stopped(guc), HZ * 5);
- if (!ret || guc_read_stopped(guc)) {
- xe_gt_warn(guc_to_gt(guc), "Schedule enable failed to respond");
- set_exec_queue_banned(q);
- xe_gt_reset_async(q->gt);
- xe_sched_tdr_queue_imm(&q->guc->sched);
- }
-}
-
-static void disable_scheduling(struct xe_exec_queue *q, bool immediate)
-{
- MAKE_SCHED_CONTEXT_ACTION(q, DISABLE);
- struct xe_guc *guc = exec_queue_to_guc(q);
-
- xe_gt_assert(guc_to_gt(guc), !exec_queue_destroyed(q));
- xe_gt_assert(guc_to_gt(guc), exec_queue_registered(q));
- xe_gt_assert(guc_to_gt(guc), !exec_queue_pending_disable(q));
-
- if (immediate)
- set_min_preemption_timeout(guc, q);
- clear_exec_queue_enabled(q);
- set_exec_queue_pending_disable(q);
- trace_xe_exec_queue_scheduling_disable(q);
-
- xe_guc_ct_send(&guc->ct, action, ARRAY_SIZE(action),
- G2H_LEN_DW_SCHED_CONTEXT_MODE_SET, 1);
-}
-
-static void __deregister_exec_queue(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- u32 action[] = {
- XE_GUC_ACTION_DEREGISTER_CONTEXT,
- q->guc->id,
- };
-
- xe_gt_assert(guc_to_gt(guc), !exec_queue_destroyed(q));
- xe_gt_assert(guc_to_gt(guc), exec_queue_registered(q));
- xe_gt_assert(guc_to_gt(guc), !exec_queue_pending_enable(q));
- xe_gt_assert(guc_to_gt(guc), !exec_queue_pending_disable(q));
-
- set_exec_queue_destroyed(q);
- trace_xe_exec_queue_deregister(q);
-
- xe_guc_ct_send(&guc->ct, action, ARRAY_SIZE(action),
- G2H_LEN_DW_DEREGISTER_CONTEXT, 1);
-}
-
-static enum drm_gpu_sched_stat
-guc_exec_queue_timedout_job(struct drm_sched_job *drm_job)
-{
- struct xe_sched_job *job = to_xe_sched_job(drm_job);
- struct xe_sched_job *tmp_job;
- struct xe_exec_queue *q = job->q;
- struct xe_gpu_scheduler *sched = &q->guc->sched;
- struct xe_guc *guc = exec_queue_to_guc(q);
-<<<<<<<
-=======
- const char *process_name = "no process";
->>>>>>>
- int err = -ETIME;
- int i = 0;
- bool wedged, skip_timeout_check;
-
- /*
- * TDR has fired before free job worker. Common if exec queue
- * immediately closed after last fence signaled.
- */
- if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &job->fence->flags)) {
- guc_exec_queue_free_job(drm_job);
-
- return DRM_GPU_SCHED_STAT_NOMINAL;
- }
-
- /* Kill the run_job entry point */
- xe_sched_submission_stop(sched);
-
- /* Must check all state after stopping scheduler */
- skip_timeout_check = exec_queue_reset(q) ||
- exec_queue_killed_or_banned_or_wedged(q) ||
- exec_queue_destroyed(q);
-
- /* Job hasn't started, can't be timed out */
- if (!skip_timeout_check && !xe_sched_job_started(job))
- goto rearm;
-
- /*
- * XXX: Sampling timeout doesn't work in wedged mode as we have to
- * modify scheduling state to read timestamp. We could read the
- * timestamp from a register to accumulate current running time but this
- * doesn't work for SRIOV. For now assuming timeouts in wedged mode are
- * genuine timeouts.
- */
- wedged = guc_submit_hint_wedged(exec_queue_to_guc(q));
-
- /* Engine state now stable, disable scheduling to check timestamp */
- if (!wedged && exec_queue_registered(q)) {
- int ret;
-
- if (exec_queue_reset(q))
- err = -EIO;
-
- if (!exec_queue_destroyed(q)) {
- /*
- * Wait for any pending G2H to flush out before
- * modifying state
- */
- ret = wait_event_timeout(guc->ct.wq,
- !exec_queue_pending_enable(q) ||
- guc_read_stopped(guc), HZ * 5);
- if (!ret || guc_read_stopped(guc))
- goto trigger_reset;
-
- /*
- * Flag communicates to G2H handler that schedule
- * disable originated from a timeout check. The G2H then
- * avoid triggering cleanup or deregistering the exec
- * queue.
- */
- set_exec_queue_check_timeout(q);
- disable_scheduling(q, skip_timeout_check);
- }
-
- /*
- * Must wait for scheduling to be disabled before signalling
- * any fences, if GT broken the GT reset code should signal us.
- *
- * FIXME: Tests can generate a ton of 0x6000 (IOMMU CAT fault
- * error) messages which can cause the schedule disable to get
- * lost. If this occurs, trigger a GT reset to recover.
- */
- smp_rmb();
- ret = wait_event_timeout(guc->ct.wq,
- !exec_queue_pending_disable(q) ||
- guc_read_stopped(guc), HZ * 5);
- if (!ret || guc_read_stopped(guc)) {
-trigger_reset:
- if (!ret)
- xe_gt_warn(guc_to_gt(guc), "Schedule disable failed to respond");
- set_exec_queue_extra_ref(q);
- xe_exec_queue_get(q); /* GT reset owns this */
- set_exec_queue_banned(q);
- xe_gt_reset_async(q->gt);
- xe_sched_tdr_queue_imm(sched);
- goto rearm;
- }
- }
-
- /*
- * Check if job is actually timed out, if so restart job execution and TDR
- */
- if (!wedged && !skip_timeout_check && !check_timeout(q, job) &&
- !exec_queue_reset(q) && exec_queue_registered(q)) {
- clear_exec_queue_check_timeout(q);
- goto sched_enable;
- }
-
-<<<<<<<
- if (q->vm && q->vm->xef) {
- process_name = q->vm->xef->process_name;
- pid = q->vm->xef->pid;
- }
- xe_gt_notice(guc_to_gt(guc), "Timedout job: seqno=%u, lrc_seqno=%u, guc_id=%d, flags=0x%lx in %s [%d]",
- xe_sched_job_seqno(job), xe_sched_job_lrc_seqno(job),
- q->guc->id, q->flags, process_name, pid);
-
-=======
- xe_gt_notice(guc_to_gt(guc), "Timedout job: seqno=%u, lrc_seqno=%u, guc_id=%d, flags=0x%lx",
- xe_sched_job_seqno(job), xe_sched_job_lrc_seqno(job),
- q->guc->id, q->flags);
->>>>>>>
- trace_xe_sched_job_timedout(job);
-
- if (!exec_queue_killed(q))
- xe_devcoredump(job);
-
- /*
- * Kernel jobs should never fail, nor should VM jobs if they do
- * somethings has gone wrong and the GT needs a reset
- */
- xe_gt_WARN(q->gt, q->flags & EXEC_QUEUE_FLAG_KERNEL,
- "Kernel-submitted job timed out\n");
- xe_gt_WARN(q->gt, q->flags & EXEC_QUEUE_FLAG_VM && !exec_queue_killed(q),
- "VM job timed out on non-killed execqueue\n");
- if (!wedged && (q->flags & EXEC_QUEUE_FLAG_KERNEL ||
- (q->flags & EXEC_QUEUE_FLAG_VM && !exec_queue_killed(q)))) {
- if (!xe_sched_invalidate_job(job, 2)) {
- clear_exec_queue_check_timeout(q);
- xe_gt_reset_async(q->gt);
- goto rearm;
- }
- }
-
- /* Finish cleaning up exec queue via deregister */
- set_exec_queue_banned(q);
- if (!wedged && exec_queue_registered(q) && !exec_queue_destroyed(q)) {
- set_exec_queue_extra_ref(q);
- xe_exec_queue_get(q);
- __deregister_exec_queue(guc, q);
- }
-
- /* Stop fence signaling */
- xe_hw_fence_irq_stop(q->fence_irq);
-
- /*
- * Fence state now stable, stop / start scheduler which cleans up any
- * fences that are complete
- */
- xe_sched_add_pending_job(sched, job);
- xe_sched_submission_start(sched);
-
- xe_guc_exec_queue_trigger_cleanup(q);
-
- /* Mark all outstanding jobs as bad, thus completing them */
- spin_lock(&sched->base.job_list_lock);
- list_for_each_entry(tmp_job, &sched->base.pending_list, drm.list)
- xe_sched_job_set_error(tmp_job, !i++ ? err : -ECANCELED);
- spin_unlock(&sched->base.job_list_lock);
-
- /* Start fence signaling */
- xe_hw_fence_irq_start(q->fence_irq);
-
- return DRM_GPU_SCHED_STAT_NOMINAL;
-
-sched_enable:
- enable_scheduling(q);
-rearm:
- /*
- * XXX: Ideally want to adjust timeout based on current exection time
- * but there is not currently an easy way to do in DRM scheduler. With
- * some thought, do this in a follow up.
- */
- xe_sched_add_pending_job(sched, job);
- xe_sched_submission_start(sched);
-
- return DRM_GPU_SCHED_STAT_NOMINAL;
-}
-
-static void __guc_exec_queue_fini_async(struct work_struct *w)
-{
- struct xe_guc_exec_queue *ge =
- container_of(w, struct xe_guc_exec_queue, fini_async);
- struct xe_exec_queue *q = ge->q;
- struct xe_guc *guc = exec_queue_to_guc(q);
-
- xe_pm_runtime_get(guc_to_xe(guc));
- trace_xe_exec_queue_destroy(q);
-
- if (xe_exec_queue_is_lr(q))
- cancel_work_sync(&ge->lr_tdr);
- release_guc_id(guc, q);
- xe_sched_entity_fini(&ge->entity);
- xe_sched_fini(&ge->sched);
-
- kfree(ge);
- xe_exec_queue_fini(q);
- xe_pm_runtime_put(guc_to_xe(guc));
-}
-
-static void guc_exec_queue_fini_async(struct xe_exec_queue *q)
-{
- INIT_WORK(&q->guc->fini_async, __guc_exec_queue_fini_async);
-
- /* We must block on kernel engines so slabs are empty on driver unload */
- if (q->flags & EXEC_QUEUE_FLAG_PERMANENT || exec_queue_wedged(q))
- __guc_exec_queue_fini_async(&q->guc->fini_async);
- else
- queue_work(system_wq, &q->guc->fini_async);
-}
-
-static void __guc_exec_queue_fini(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- /*
- * Might be done from within the GPU scheduler, need to do async as we
- * fini the scheduler when the engine is fini'd, the scheduler can't
- * complete fini within itself (circular dependency). Async resolves
- * this we and don't really care when everything is fini'd, just that it
- * is.
- */
- guc_exec_queue_fini_async(q);
-}
-
-static void __guc_exec_queue_process_msg_cleanup(struct xe_sched_msg *msg)
-{
- struct xe_exec_queue *q = msg->private_data;
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
-
- xe_assert(xe, !(q->flags & EXEC_QUEUE_FLAG_PERMANENT));
- trace_xe_exec_queue_cleanup_entity(q);
-
- if (exec_queue_registered(q))
- disable_scheduling_deregister(guc, q);
- else
- __guc_exec_queue_fini(guc, q);
-}
-
-static bool guc_exec_queue_allowed_to_change_state(struct xe_exec_queue *q)
-{
- return !exec_queue_killed_or_banned_or_wedged(q) && exec_queue_registered(q);
-}
-
-static void __guc_exec_queue_process_msg_set_sched_props(struct xe_sched_msg *msg)
-{
- struct xe_exec_queue *q = msg->private_data;
- struct xe_guc *guc = exec_queue_to_guc(q);
-
- if (guc_exec_queue_allowed_to_change_state(q))
- init_policies(guc, q);
- kfree(msg);
-}
-
-static void suspend_fence_signal(struct xe_exec_queue *q)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
-
- xe_assert(xe, exec_queue_suspended(q) || exec_queue_killed(q) ||
- guc_read_stopped(guc));
- xe_assert(xe, q->guc->suspend_pending);
-
- q->guc->suspend_pending = false;
- smp_wmb();
- wake_up(&q->guc->suspend_wait);
-}
-
-static void __guc_exec_queue_process_msg_suspend(struct xe_sched_msg *msg)
-{
- struct xe_exec_queue *q = msg->private_data;
- struct xe_guc *guc = exec_queue_to_guc(q);
-
- if (guc_exec_queue_allowed_to_change_state(q) && !exec_queue_suspended(q) &&
- exec_queue_enabled(q)) {
- wait_event(guc->ct.wq, q->guc->resume_time != RESUME_PENDING ||
- guc_read_stopped(guc));
-
- if (!guc_read_stopped(guc)) {
- s64 since_resume_ms =
- ktime_ms_delta(ktime_get(),
- q->guc->resume_time);
- s64 wait_ms = q->vm->preempt.min_run_period_ms -
- since_resume_ms;
-
- if (wait_ms > 0 && q->guc->resume_time)
- msleep(wait_ms);
-
- set_exec_queue_suspended(q);
- disable_scheduling(q, false);
- }
- } else if (q->guc->suspend_pending) {
- set_exec_queue_suspended(q);
- suspend_fence_signal(q);
- }
-}
-
-static void __guc_exec_queue_process_msg_resume(struct xe_sched_msg *msg)
-{
- struct xe_exec_queue *q = msg->private_data;
-
- if (guc_exec_queue_allowed_to_change_state(q)) {
- q->guc->resume_time = RESUME_PENDING;
- clear_exec_queue_suspended(q);
- enable_scheduling(q);
- } else {
- clear_exec_queue_suspended(q);
- }
-}
-
-#define CLEANUP 1 /* Non-zero values to catch uninitialized msg */
-#define SET_SCHED_PROPS 2
-#define SUSPEND 3
-#define RESUME 4
-
-static void guc_exec_queue_process_msg(struct xe_sched_msg *msg)
-{
- trace_xe_sched_msg_recv(msg);
-
- switch (msg->opcode) {
- case CLEANUP:
- __guc_exec_queue_process_msg_cleanup(msg);
- break;
- case SET_SCHED_PROPS:
- __guc_exec_queue_process_msg_set_sched_props(msg);
- break;
- case SUSPEND:
- __guc_exec_queue_process_msg_suspend(msg);
- break;
- case RESUME:
- __guc_exec_queue_process_msg_resume(msg);
- break;
- default:
- XE_WARN_ON("Unknown message type");
- }
-
- xe_pm_runtime_put(guc_to_xe(exec_queue_to_guc(msg->private_data)));
-}
-
-static const struct drm_sched_backend_ops drm_sched_ops = {
- .run_job = guc_exec_queue_run_job,
- .free_job = guc_exec_queue_free_job,
- .timedout_job = guc_exec_queue_timedout_job,
-};
-
-static const struct xe_sched_backend_ops xe_sched_ops = {
- .process_msg = guc_exec_queue_process_msg,
-};
-
-static int guc_exec_queue_init(struct xe_exec_queue *q)
-{
- struct xe_gpu_scheduler *sched;
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_guc_exec_queue *ge;
- long timeout;
- int err;
-
- xe_assert(xe, xe_device_uc_enabled(guc_to_xe(guc)));
-
- ge = kzalloc(sizeof(*ge), GFP_KERNEL);
- if (!ge)
- return -ENOMEM;
-
- q->guc = ge;
- ge->q = q;
- init_waitqueue_head(&ge->suspend_wait);
-
- timeout = (q->vm && xe_vm_in_lr_mode(q->vm)) ? MAX_SCHEDULE_TIMEOUT :
- msecs_to_jiffies(q->sched_props.job_timeout_ms);
- err = xe_sched_init(&ge->sched, &drm_sched_ops, &xe_sched_ops,
- get_submit_wq(guc),
- q->lrc[0]->ring.size / MAX_JOB_SIZE_BYTES, 64,
- timeout, guc_to_gt(guc)->ordered_wq, NULL,
- q->name, gt_to_xe(q->gt)->drm.dev);
- if (err)
- goto err_free;
-
- sched = &ge->sched;
- err = xe_sched_entity_init(&ge->entity, sched);
- if (err)
- goto err_sched;
-
- if (xe_exec_queue_is_lr(q))
- INIT_WORK(&q->guc->lr_tdr, xe_guc_exec_queue_lr_cleanup);
-
- mutex_lock(&guc->submission_state.lock);
-
- err = alloc_guc_id(guc, q);
- if (err)
- goto err_entity;
-
- q->entity = &ge->entity;
-
- if (guc_read_stopped(guc))
- xe_sched_stop(sched);
-
- mutex_unlock(&guc->submission_state.lock);
-
- xe_exec_queue_assign_name(q, q->guc->id);
-
- trace_xe_exec_queue_create(q);
-
- return 0;
-
-err_entity:
- mutex_unlock(&guc->submission_state.lock);
- xe_sched_entity_fini(&ge->entity);
-err_sched:
- xe_sched_fini(&ge->sched);
-err_free:
- kfree(ge);
-
- return err;
-}
-
-static void guc_exec_queue_kill(struct xe_exec_queue *q)
-{
- trace_xe_exec_queue_kill(q);
- set_exec_queue_killed(q);
- xe_guc_exec_queue_trigger_cleanup(q);
-}
-
-static void guc_exec_queue_add_msg(struct xe_exec_queue *q, struct xe_sched_msg *msg,
- u32 opcode)
-{
- xe_pm_runtime_get_noresume(guc_to_xe(exec_queue_to_guc(q)));
-
- INIT_LIST_HEAD(&msg->link);
- msg->opcode = opcode;
- msg->private_data = q;
-
- trace_xe_sched_msg_add(msg);
- xe_sched_add_msg(&q->guc->sched, msg);
-}
-
-#define STATIC_MSG_CLEANUP 0
-#define STATIC_MSG_SUSPEND 1
-#define STATIC_MSG_RESUME 2
-static void guc_exec_queue_fini(struct xe_exec_queue *q)
-{
- struct xe_sched_msg *msg = q->guc->static_msgs + STATIC_MSG_CLEANUP;
-
- if (!(q->flags & EXEC_QUEUE_FLAG_PERMANENT) && !exec_queue_wedged(q))
- guc_exec_queue_add_msg(q, msg, CLEANUP);
- else
- __guc_exec_queue_fini(exec_queue_to_guc(q), q);
-}
-
-static int guc_exec_queue_set_priority(struct xe_exec_queue *q,
- enum xe_exec_queue_priority priority)
-{
- struct xe_sched_msg *msg;
-
- if (q->sched_props.priority == priority ||
- exec_queue_killed_or_banned_or_wedged(q))
- return 0;
-
- msg = kmalloc(sizeof(*msg), GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- q->sched_props.priority = priority;
- guc_exec_queue_add_msg(q, msg, SET_SCHED_PROPS);
-
- return 0;
-}
-
-static int guc_exec_queue_set_timeslice(struct xe_exec_queue *q, u32 timeslice_us)
-{
- struct xe_sched_msg *msg;
-
- if (q->sched_props.timeslice_us == timeslice_us ||
- exec_queue_killed_or_banned_or_wedged(q))
- return 0;
-
- msg = kmalloc(sizeof(*msg), GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- q->sched_props.timeslice_us = timeslice_us;
- guc_exec_queue_add_msg(q, msg, SET_SCHED_PROPS);
-
- return 0;
-}
-
-static int guc_exec_queue_set_preempt_timeout(struct xe_exec_queue *q,
- u32 preempt_timeout_us)
-{
- struct xe_sched_msg *msg;
-
- if (q->sched_props.preempt_timeout_us == preempt_timeout_us ||
- exec_queue_killed_or_banned_or_wedged(q))
- return 0;
-
- msg = kmalloc(sizeof(*msg), GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- q->sched_props.preempt_timeout_us = preempt_timeout_us;
- guc_exec_queue_add_msg(q, msg, SET_SCHED_PROPS);
-
- return 0;
-}
-
-static int guc_exec_queue_suspend(struct xe_exec_queue *q)
-{
- struct xe_sched_msg *msg = q->guc->static_msgs + STATIC_MSG_SUSPEND;
-
- if (exec_queue_killed_or_banned_or_wedged(q) || q->guc->suspend_pending)
- return -EINVAL;
-
- q->guc->suspend_pending = true;
- guc_exec_queue_add_msg(q, msg, SUSPEND);
-
- return 0;
-}
-
-static void guc_exec_queue_suspend_wait(struct xe_exec_queue *q)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
-
- wait_event(q->guc->suspend_wait, !q->guc->suspend_pending ||
- guc_read_stopped(guc));
-}
-
-static void guc_exec_queue_resume(struct xe_exec_queue *q)
-{
- struct xe_sched_msg *msg = q->guc->static_msgs + STATIC_MSG_RESUME;
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
-
- xe_assert(xe, !q->guc->suspend_pending);
-
- guc_exec_queue_add_msg(q, msg, RESUME);
-}
-
-static bool guc_exec_queue_reset_status(struct xe_exec_queue *q)
-{
- return exec_queue_reset(q) || exec_queue_killed_or_banned_or_wedged(q);
-}
-
-/*
- * All of these functions are an abstraction layer which other parts of XE can
- * use to trap into the GuC backend. All of these functions, aside from init,
- * really shouldn't do much other than trap into the DRM scheduler which
- * synchronizes these operations.
- */
-static const struct xe_exec_queue_ops guc_exec_queue_ops = {
- .init = guc_exec_queue_init,
- .kill = guc_exec_queue_kill,
- .fini = guc_exec_queue_fini,
- .set_priority = guc_exec_queue_set_priority,
- .set_timeslice = guc_exec_queue_set_timeslice,
- .set_preempt_timeout = guc_exec_queue_set_preempt_timeout,
- .suspend = guc_exec_queue_suspend,
- .suspend_wait = guc_exec_queue_suspend_wait,
- .resume = guc_exec_queue_resume,
- .reset_status = guc_exec_queue_reset_status,
-};
-
-static void guc_exec_queue_stop(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- struct xe_gpu_scheduler *sched = &q->guc->sched;
-
- /* Stop scheduling + flush any DRM scheduler operations */
- xe_sched_submission_stop(sched);
-
- /* Clean up lost G2H + reset engine state */
- if (exec_queue_registered(q)) {
- if (exec_queue_extra_ref(q) || xe_exec_queue_is_lr(q))
- xe_exec_queue_put(q);
- else if (exec_queue_destroyed(q))
- __guc_exec_queue_fini(guc, q);
- }
- if (q->guc->suspend_pending) {
- set_exec_queue_suspended(q);
- suspend_fence_signal(q);
- }
- atomic_and(EXEC_QUEUE_STATE_WEDGED | EXEC_QUEUE_STATE_BANNED |
- EXEC_QUEUE_STATE_KILLED | EXEC_QUEUE_STATE_DESTROYED |
- EXEC_QUEUE_STATE_SUSPENDED,
- &q->guc->state);
- q->guc->resume_time = 0;
- trace_xe_exec_queue_stop(q);
-
- /*
- * Ban any engine (aside from kernel and engines used for VM ops) with a
- * started but not complete job or if a job has gone through a GT reset
- * more than twice.
- */
- if (!(q->flags & (EXEC_QUEUE_FLAG_KERNEL | EXEC_QUEUE_FLAG_VM))) {
- struct xe_sched_job *job = xe_sched_first_pending_job(sched);
- bool ban = false;
-
- if (job) {
- if ((xe_sched_job_started(job) &&
- !xe_sched_job_completed(job)) ||
- xe_sched_invalidate_job(job, 2)) {
- trace_xe_sched_job_ban(job);
- ban = true;
- }
- } else if (xe_exec_queue_is_lr(q) &&
- (xe_lrc_ring_head(q->lrc[0]) != xe_lrc_ring_tail(q->lrc[0]))) {
- ban = true;
- }
-
- if (ban) {
- set_exec_queue_banned(q);
- xe_guc_exec_queue_trigger_cleanup(q);
- }
- }
-}
-
-int xe_guc_submit_reset_prepare(struct xe_guc *guc)
-{
- int ret;
-
- /*
- * Using an atomic here rather than submission_state.lock as this
- * function can be called while holding the CT lock (engine reset
- * failure). submission_state.lock needs the CT lock to resubmit jobs.
- * Atomic is not ideal, but it works to prevent against concurrent reset
- * and releasing any TDRs waiting on guc->submission_state.stopped.
- */
- ret = atomic_fetch_or(1, &guc->submission_state.stopped);
- smp_wmb();
- wake_up_all(&guc->ct.wq);
-
- return ret;
-}
-
-void xe_guc_submit_reset_wait(struct xe_guc *guc)
-{
- wait_event(guc->ct.wq, xe_device_wedged(guc_to_xe(guc)) ||
- !guc_read_stopped(guc));
-}
-
-void xe_guc_submit_stop(struct xe_guc *guc)
-{
- struct xe_exec_queue *q;
- unsigned long index;
- struct xe_device *xe = guc_to_xe(guc);
-
- xe_assert(xe, guc_read_stopped(guc) == 1);
-
- mutex_lock(&guc->submission_state.lock);
-
- xa_for_each(&guc->submission_state.exec_queue_lookup, index, q)
- guc_exec_queue_stop(guc, q);
-
- mutex_unlock(&guc->submission_state.lock);
-
- /*
- * No one can enter the backend at this point, aside from new engine
- * creation which is protected by guc->submission_state.lock.
- */
-
-}
-
-static void guc_exec_queue_start(struct xe_exec_queue *q)
-{
- struct xe_gpu_scheduler *sched = &q->guc->sched;
-
- if (!exec_queue_killed_or_banned_or_wedged(q)) {
- int i;
-
- trace_xe_exec_queue_resubmit(q);
- for (i = 0; i < q->width; ++i)
- xe_lrc_set_ring_head(q->lrc[i], q->lrc[i]->ring.tail);
- xe_sched_resubmit_jobs(sched);
- }
-
- xe_sched_submission_start(sched);
-}
-
-int xe_guc_submit_start(struct xe_guc *guc)
-{
- struct xe_exec_queue *q;
- unsigned long index;
- struct xe_device *xe = guc_to_xe(guc);
-
- xe_assert(xe, guc_read_stopped(guc) == 1);
-
- mutex_lock(&guc->submission_state.lock);
- atomic_dec(&guc->submission_state.stopped);
- xa_for_each(&guc->submission_state.exec_queue_lookup, index, q)
- guc_exec_queue_start(q);
- mutex_unlock(&guc->submission_state.lock);
-
- wake_up_all(&guc->ct.wq);
-
- return 0;
-}
-
-static struct xe_exec_queue *
-g2h_exec_queue_lookup(struct xe_guc *guc, u32 guc_id)
-{
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_exec_queue *q;
-
- if (unlikely(guc_id >= GUC_ID_MAX)) {
- drm_err(&xe->drm, "Invalid guc_id %u", guc_id);
- return NULL;
- }
-
- q = xa_load(&guc->submission_state.exec_queue_lookup, guc_id);
- if (unlikely(!q)) {
- drm_err(&xe->drm, "Not engine present for guc_id %u", guc_id);
- return NULL;
- }
-
- xe_assert(xe, guc_id >= q->guc->id);
- xe_assert(xe, guc_id < (q->guc->id + q->width));
-
- return q;
-}
-
-static void deregister_exec_queue(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- u32 action[] = {
- XE_GUC_ACTION_DEREGISTER_CONTEXT,
- q->guc->id,
- };
-
- xe_gt_assert(guc_to_gt(guc), exec_queue_destroyed(q));
- xe_gt_assert(guc_to_gt(guc), exec_queue_registered(q));
- xe_gt_assert(guc_to_gt(guc), !exec_queue_pending_disable(q));
- xe_gt_assert(guc_to_gt(guc), !exec_queue_pending_enable(q));
-
- trace_xe_exec_queue_deregister(q);
-
- xe_guc_ct_send_g2h_handler(&guc->ct, action, ARRAY_SIZE(action));
-}
-
-static void handle_sched_done(struct xe_guc *guc, struct xe_exec_queue *q,
- u32 runnable_state)
-{
- trace_xe_exec_queue_scheduling_done(q);
-
- if (runnable_state == 1) {
- xe_gt_assert(guc_to_gt(guc), exec_queue_pending_enable(q));
-
- q->guc->resume_time = ktime_get();
- clear_exec_queue_pending_enable(q);
- smp_wmb();
- wake_up_all(&guc->ct.wq);
- } else {
- bool check_timeout = exec_queue_check_timeout(q);
-
- xe_gt_assert(guc_to_gt(guc), runnable_state == 0);
- xe_gt_assert(guc_to_gt(guc), exec_queue_pending_disable(q));
-
- clear_exec_queue_pending_disable(q);
- if (q->guc->suspend_pending) {
- suspend_fence_signal(q);
- } else {
- if (exec_queue_banned(q) || check_timeout) {
- smp_wmb();
- wake_up_all(&guc->ct.wq);
- }
- if (!check_timeout)
- deregister_exec_queue(guc, q);
- }
- }
-}
-
-int xe_guc_sched_done_handler(struct xe_guc *guc, u32 *msg, u32 len)
-{
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_exec_queue *q;
- u32 guc_id = msg[0];
- u32 runnable_state = msg[1];
-
- if (unlikely(len < 2)) {
- drm_err(&xe->drm, "Invalid length %u", len);
- return -EPROTO;
- }
-
- q = g2h_exec_queue_lookup(guc, guc_id);
- if (unlikely(!q))
- return -EPROTO;
-
- if (unlikely(!exec_queue_pending_enable(q) &&
- !exec_queue_pending_disable(q))) {
- xe_gt_err(guc_to_gt(guc),
- "SCHED_DONE: Unexpected engine state 0x%04x, guc_id=%d, runnable_state=%u",
- atomic_read(&q->guc->state), q->guc->id,
- runnable_state);
- return -EPROTO;
- }
-
- handle_sched_done(guc, q, runnable_state);
-
- return 0;
-}
-
-static void handle_deregister_done(struct xe_guc *guc, struct xe_exec_queue *q)
-{
- trace_xe_exec_queue_deregister_done(q);
-
- clear_exec_queue_registered(q);
-
- if (exec_queue_extra_ref(q) || xe_exec_queue_is_lr(q))
- xe_exec_queue_put(q);
- else
- __guc_exec_queue_fini(guc, q);
-}
-
-int xe_guc_deregister_done_handler(struct xe_guc *guc, u32 *msg, u32 len)
-{
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_exec_queue *q;
- u32 guc_id = msg[0];
-
- if (unlikely(len < 1)) {
- drm_err(&xe->drm, "Invalid length %u", len);
- return -EPROTO;
- }
-
- q = g2h_exec_queue_lookup(guc, guc_id);
- if (unlikely(!q))
- return -EPROTO;
-
- if (!exec_queue_destroyed(q) || exec_queue_pending_disable(q) ||
- exec_queue_pending_enable(q) || exec_queue_enabled(q)) {
- xe_gt_err(guc_to_gt(guc),
- "DEREGISTER_DONE: Unexpected engine state 0x%04x, guc_id=%d",
- atomic_read(&q->guc->state), q->guc->id);
- return -EPROTO;
- }
-
- handle_deregister_done(guc, q);
-
- return 0;
-}
-
-int xe_guc_exec_queue_reset_handler(struct xe_guc *guc, u32 *msg, u32 len)
-{
- struct xe_gt *gt = guc_to_gt(guc);
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_exec_queue *q;
- u32 guc_id = msg[0];
-
- if (unlikely(len < 1)) {
- drm_err(&xe->drm, "Invalid length %u", len);
- return -EPROTO;
- }
-
- q = g2h_exec_queue_lookup(guc, guc_id);
- if (unlikely(!q))
- return -EPROTO;
-
- xe_gt_info(gt, "Engine reset: engine_class=%s, logical_mask: 0x%x, guc_id=%d",
- xe_hw_engine_class_to_str(q->class), q->logical_mask, guc_id);
-
- /* FIXME: Do error capture, most likely async */
-
- trace_xe_exec_queue_reset(q);
-
- /*
- * A banned engine is a NOP at this point (came from
- * guc_exec_queue_timedout_job). Otherwise, kick drm scheduler to cancel
- * jobs by setting timeout of the job to the minimum value kicking
- * guc_exec_queue_timedout_job.
- */
- set_exec_queue_reset(q);
- if (!exec_queue_banned(q) && !exec_queue_check_timeout(q))
- xe_guc_exec_queue_trigger_cleanup(q);
-
- return 0;
-}
-
-int xe_guc_exec_queue_memory_cat_error_handler(struct xe_guc *guc, u32 *msg,
- u32 len)
-{
- struct xe_gt *gt = guc_to_gt(guc);
- struct xe_device *xe = guc_to_xe(guc);
- struct xe_exec_queue *q;
- u32 guc_id = msg[0];
-
- if (unlikely(len < 1)) {
- drm_err(&xe->drm, "Invalid length %u", len);
- return -EPROTO;
- }
-
- q = g2h_exec_queue_lookup(guc, guc_id);
- if (unlikely(!q))
- return -EPROTO;
-
- xe_gt_dbg(gt, "Engine memory cat error: engine_class=%s, logical_mask: 0x%x, guc_id=%d",
- xe_hw_engine_class_to_str(q->class), q->logical_mask, guc_id);
-
- trace_xe_exec_queue_memory_cat_error(q);
-
- /* Treat the same as engine reset */
- set_exec_queue_reset(q);
- if (!exec_queue_banned(q) && !exec_queue_check_timeout(q))
- xe_guc_exec_queue_trigger_cleanup(q);
-
- return 0;
-}
-
-int xe_guc_exec_queue_reset_failure_handler(struct xe_guc *guc, u32 *msg, u32 len)
-{
- struct xe_device *xe = guc_to_xe(guc);
- u8 guc_class, instance;
- u32 reason;
-
- if (unlikely(len != 3)) {
- drm_err(&xe->drm, "Invalid length %u", len);
- return -EPROTO;
- }
-
- guc_class = msg[0];
- instance = msg[1];
- reason = msg[2];
-
- /* Unexpected failure of a hardware feature, log an actual error */
- drm_err(&xe->drm, "GuC engine reset request failed on %d:%d because 0x%08X",
- guc_class, instance, reason);
-
- xe_gt_reset_async(guc_to_gt(guc));
-
- return 0;
-}
-
-static void
-guc_exec_queue_wq_snapshot_capture(struct xe_exec_queue *q,
- struct xe_guc_submit_exec_queue_snapshot *snapshot)
-{
- struct xe_guc *guc = exec_queue_to_guc(q);
- struct xe_device *xe = guc_to_xe(guc);
- struct iosys_map map = xe_lrc_parallel_map(q->lrc[0]);
- int i;
-
- snapshot->guc.wqi_head = q->guc->wqi_head;
- snapshot->guc.wqi_tail = q->guc->wqi_tail;
- snapshot->parallel.wq_desc.head = parallel_read(xe, map, wq_desc.head);
- snapshot->parallel.wq_desc.tail = parallel_read(xe, map, wq_desc.tail);
- snapshot->parallel.wq_desc.status = parallel_read(xe, map,
- wq_desc.wq_status);
-
- if (snapshot->parallel.wq_desc.head !=
- snapshot->parallel.wq_desc.tail) {
- for (i = snapshot->parallel.wq_desc.head;
- i != snapshot->parallel.wq_desc.tail;
- i = (i + sizeof(u32)) % WQ_SIZE)
- snapshot->parallel.wq[i / sizeof(u32)] =
- parallel_read(xe, map, wq[i / sizeof(u32)]);
- }
-}
-
-static void
-guc_exec_queue_wq_snapshot_print(struct xe_guc_submit_exec_queue_snapshot *snapshot,
- struct drm_printer *p)
-{
- int i;
-
- drm_printf(p, "\tWQ head: %u (internal), %d (memory)\n",
- snapshot->guc.wqi_head, snapshot->parallel.wq_desc.head);
- drm_printf(p, "\tWQ tail: %u (internal), %d (memory)\n",
- snapshot->guc.wqi_tail, snapshot->parallel.wq_desc.tail);
- drm_printf(p, "\tWQ status: %u\n", snapshot->parallel.wq_desc.status);
-
- if (snapshot->parallel.wq_desc.head !=
- snapshot->parallel.wq_desc.tail) {
- for (i = snapshot->parallel.wq_desc.head;
- i != snapshot->parallel.wq_desc.tail;
- i = (i + sizeof(u32)) % WQ_SIZE)
- drm_printf(p, "\tWQ[%zu]: 0x%08x\n", i / sizeof(u32),
- snapshot->parallel.wq[i / sizeof(u32)]);
- }
-}
-
-/**
- * xe_guc_exec_queue_snapshot_capture - Take a quick snapshot of the GuC Engine.
- * @q: faulty exec queue
- *
- * This can be printed out in a later stage like during dev_coredump
- * analysis.
- *
- * Returns: a GuC Submit Engine snapshot object that must be freed by the
- * caller, using `xe_guc_exec_queue_snapshot_free`.
- */
-struct xe_guc_submit_exec_queue_snapshot *
-xe_guc_exec_queue_snapshot_capture(struct xe_exec_queue *q)
-{
- struct xe_gpu_scheduler *sched = &q->guc->sched;
- struct xe_guc_submit_exec_queue_snapshot *snapshot;
- int i;
-
- snapshot = kzalloc(sizeof(*snapshot), GFP_ATOMIC);
-
- if (!snapshot)
- return NULL;
-
- snapshot->guc.id = q->guc->id;
- memcpy(&snapshot->name, &q->name, sizeof(snapshot->name));
- snapshot->class = q->class;
- snapshot->logical_mask = q->logical_mask;
- snapshot->width = q->width;
- snapshot->refcount = kref_read(&q->refcount);
- snapshot->sched_timeout = sched->base.timeout;
- snapshot->sched_props.timeslice_us = q->sched_props.timeslice_us;
- snapshot->sched_props.preempt_timeout_us =
- q->sched_props.preempt_timeout_us;
-
- snapshot->lrc = kmalloc_array(q->width, sizeof(struct xe_lrc_snapshot *),
- GFP_ATOMIC);
-
- if (snapshot->lrc) {
- for (i = 0; i < q->width; ++i) {
- struct xe_lrc *lrc = q->lrc[i];
-
- snapshot->lrc[i] = xe_lrc_snapshot_capture(lrc);
- }
- }
-
- snapshot->schedule_state = atomic_read(&q->guc->state);
- snapshot->exec_queue_flags = q->flags;
-
- snapshot->parallel_execution = xe_exec_queue_is_parallel(q);
- if (snapshot->parallel_execution)
- guc_exec_queue_wq_snapshot_capture(q, snapshot);
-
- spin_lock(&sched->base.job_list_lock);
- snapshot->pending_list_size = list_count_nodes(&sched->base.pending_list);
- snapshot->pending_list = kmalloc_array(snapshot->pending_list_size,
- sizeof(struct pending_list_snapshot),
- GFP_ATOMIC);
-
- if (snapshot->pending_list) {
- struct xe_sched_job *job_iter;
-
- i = 0;
- list_for_each_entry(job_iter, &sched->base.pending_list, drm.list) {
- snapshot->pending_list[i].seqno =
- xe_sched_job_seqno(job_iter);
- snapshot->pending_list[i].fence =
- dma_fence_is_signaled(job_iter->fence) ? 1 : 0;
- snapshot->pending_list[i].finished =
- dma_fence_is_signaled(&job_iter->drm.s_fence->finished)
- ? 1 : 0;
- i++;
- }
- }
-
- spin_unlock(&sched->base.job_list_lock);
-
- return snapshot;
-}
-
-/**
- * xe_guc_exec_queue_snapshot_capture_delayed - Take delayed part of snapshot of the GuC Engine.
- * @snapshot: Previously captured snapshot of job.
- *
- * This captures some data that requires taking some locks, so it cannot be done in signaling path.
- */
-void
-xe_guc_exec_queue_snapshot_capture_delayed(struct xe_guc_submit_exec_queue_snapshot *snapshot)
-{
- int i;
-
- if (!snapshot || !snapshot->lrc)
- return;
-
- for (i = 0; i < snapshot->width; ++i)
- xe_lrc_snapshot_capture_delayed(snapshot->lrc[i]);
-}
-
-/**
- * xe_guc_exec_queue_snapshot_print - Print out a given GuC Engine snapshot.
- * @snapshot: GuC Submit Engine snapshot object.
- * @p: drm_printer where it will be printed out.
- *
- * This function prints out a given GuC Submit Engine snapshot object.
- */
-void
-xe_guc_exec_queue_snapshot_print(struct xe_guc_submit_exec_queue_snapshot *snapshot,
- struct drm_printer *p)
-{
- int i;
-
- if (!snapshot)
- return;
-
- drm_printf(p, "\nGuC ID: %d\n", snapshot->guc.id);
- drm_printf(p, "\tName: %s\n", snapshot->name);
- drm_printf(p, "\tClass: %d\n", snapshot->class);
- drm_printf(p, "\tLogical mask: 0x%x\n", snapshot->logical_mask);
- drm_printf(p, "\tWidth: %d\n", snapshot->width);
- drm_printf(p, "\tRef: %d\n", snapshot->refcount);
- drm_printf(p, "\tTimeout: %ld (ms)\n", snapshot->sched_timeout);
- drm_printf(p, "\tTimeslice: %u (us)\n",
- snapshot->sched_props.timeslice_us);
- drm_printf(p, "\tPreempt timeout: %u (us)\n",
- snapshot->sched_props.preempt_timeout_us);
-
- for (i = 0; snapshot->lrc && i < snapshot->width; ++i)
- xe_lrc_snapshot_print(snapshot->lrc[i], p);
-
- drm_printf(p, "\tSchedule State: 0x%x\n", snapshot->schedule_state);
- drm_printf(p, "\tFlags: 0x%lx\n", snapshot->exec_queue_flags);
-
- if (snapshot->parallel_execution)
- guc_exec_queue_wq_snapshot_print(snapshot, p);
-
- for (i = 0; snapshot->pending_list && i < snapshot->pending_list_size;
- i++)
- drm_printf(p, "\tJob: seqno=%d, fence=%d, finished=%d\n",
- snapshot->pending_list[i].seqno,
- snapshot->pending_list[i].fence,
- snapshot->pending_list[i].finished);
-}
-
-/**
- * xe_guc_exec_queue_snapshot_free - Free all allocated objects for a given
- * snapshot.
- * @snapshot: GuC Submit Engine snapshot object.
- *
- * This function free all the memory that needed to be allocated at capture
- * time.
- */
-void xe_guc_exec_queue_snapshot_free(struct xe_guc_submit_exec_queue_snapshot *snapshot)
-{
- int i;
-
- if (!snapshot)
- return;
-
- if (snapshot->lrc) {
- for (i = 0; i < snapshot->width; i++)
- xe_lrc_snapshot_free(snapshot->lrc[i]);
- kfree(snapshot->lrc);
- }
- kfree(snapshot->pending_list);
- kfree(snapshot);
-}
-
-static void guc_exec_queue_print(struct xe_exec_queue *q, struct drm_printer *p)
-{
- struct xe_guc_submit_exec_queue_snapshot *snapshot;
-
- snapshot = xe_guc_exec_queue_snapshot_capture(q);
- xe_guc_exec_queue_snapshot_print(snapshot, p);
- xe_guc_exec_queue_snapshot_free(snapshot);
-}
-
-/**
- * xe_guc_submit_print - GuC Submit Print.
- * @guc: GuC.
- * @p: drm_printer where it will be printed out.
- *
- * This function capture and prints snapshots of **all** GuC Engines.
- */
-void xe_guc_submit_print(struct xe_guc *guc, struct drm_printer *p)
-{
- struct xe_exec_queue *q;
- unsigned long index;
-
- if (!xe_device_uc_enabled(guc_to_xe(guc)))
- return;
-
- mutex_lock(&guc->submission_state.lock);
- xa_for_each(&guc->submission_state.exec_queue_lookup, index, q)
- guc_exec_queue_print(q, p);
- mutex_unlock(&guc->submission_state.lock);
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 16:57:20 +0000