[Intel-gfx] [PATCH v13 1/2] drm/i915: Add WABB blit for Wa_16018031267 / Wa_16018063123
Jonathan Cavitt
jonathan.cavitt at intel.com
Thu Sep 21 18:37:28 UTC 2023
Apply WABB blit for Wa_16018031267 / Wa_16018063123.
Additionally, update the lrc selftest to exercise the new
WABB changes.
Wa_16018031267 / Wa_16018063123 specifically requires a
dummy context to prevent taking vm space away from
userspace, so additional functionality was added to
allow such a context to exist.
Co-developed-by: Nirmoy Das <nirmoy.das at intel.com>
Signed-off-by: Jonathan Cavitt <jonathan.cavitt at intel.com>
Suggested-by: Chris Wilson <chris.p.wilson at linux.intel.com>
---
drivers/gpu/drm/i915/gt/intel_context.h | 9 ++
drivers/gpu/drm/i915/gt/intel_context_types.h | 1 +
drivers/gpu/drm/i915/gt/intel_engine.h | 2 +
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 48 +++++++++
drivers/gpu/drm/i915/gt/intel_engine_regs.h | 3 +
drivers/gpu/drm/i915/gt/intel_engine_types.h | 1 +
drivers/gpu/drm/i915/gt/intel_gt.h | 4 +
drivers/gpu/drm/i915/gt/intel_lrc.c | 101 +++++++++++++++++-
drivers/gpu/drm/i915/gt/selftest_lrc.c | 65 +++++++----
.../gpu/drm/i915/gt/uc/intel_guc_submission.c | 13 ++-
.../gpu/drm/i915/gt/uc/intel_guc_submission.h | 1 +
11 files changed, 224 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_context.h b/drivers/gpu/drm/i915/gt/intel_context.h
index a80e3b7c24ff9..bc9594e72b2d5 100644
--- a/drivers/gpu/drm/i915/gt/intel_context.h
+++ b/drivers/gpu/drm/i915/gt/intel_context.h
@@ -315,6 +315,15 @@ static inline void intel_context_clear_use_semaphores(struct intel_context *ce)
clear_bit(CONTEXT_USE_SEMAPHORES, &ce->flags);
}
+/*
+ * Some contexts are only used for special workarounds and should
+ * not be included in normal context operations.
+ */
+static inline bool intel_context_is_hidden(const struct intel_context *ce)
+{
+ return test_bit(CONTEXT_L3_BB, &ce->flags);
+}
+
static inline bool intel_context_is_banned(const struct intel_context *ce)
{
return test_bit(CONTEXT_BANNED, &ce->flags);
diff --git a/drivers/gpu/drm/i915/gt/intel_context_types.h b/drivers/gpu/drm/i915/gt/intel_context_types.h
index aceaac28a33eb..dbec1a13cc6c1 100644
--- a/drivers/gpu/drm/i915/gt/intel_context_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_context_types.h
@@ -128,6 +128,7 @@ struct intel_context {
#define CONTEXT_PERMA_PIN 11
#define CONTEXT_IS_PARKING 12
#define CONTEXT_EXITING 13
+#define CONTEXT_L3_BB 14
struct {
u64 timeout_us;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h
index b58c30ac8ef02..4e7490d34930a 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine.h
@@ -170,6 +170,8 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value)
#define I915_GEM_HWS_SEQNO 0x40
#define I915_GEM_HWS_SEQNO_ADDR (I915_GEM_HWS_SEQNO * sizeof(u32))
#define I915_GEM_HWS_MIGRATE (0x42 * sizeof(u32))
+#define I915_GEM_HWS_DUMMY 0x48
+#define I915_GEM_HWS_DUMMY_ADDR (I915_GEM_HWS_DUMMY * sizeof(u32))
#define I915_GEM_HWS_PXP 0x60
#define I915_GEM_HWS_PXP_ADDR (I915_GEM_HWS_PXP * sizeof(u32))
#define I915_GEM_HWS_GSC 0x62
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 84a75c95f3f7d..c34bcf65d9284 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1428,6 +1428,45 @@ create_kernel_context(struct intel_engine_cs *engine)
&kernel, "kernel_context");
}
+static int
+setup_dummy_context(struct intel_engine_cs *engine)
+{
+ static struct lock_class_key dummy;
+ static struct intel_context *ce;
+ struct i915_ppgtt *ppgtt;
+ int ret;
+
+ ppgtt = i915_ppgtt_create(engine->gt, 0);
+ if (IS_ERR(ppgtt))
+ return PTR_ERR(ppgtt);
+
+ ce = intel_engine_create_pinned_context(engine,
+ &ppgtt->vm, SZ_4K,
+ I915_GEM_HWS_DUMMY_ADDR,
+ &dummy, "dummy_context");
+ if (IS_ERR(ce)) {
+ ret = PTR_ERR(ce);
+ goto err_ce;
+ }
+
+ /* Ensure this context does not get registered for use as a real context */
+ __set_bit(CONTEXT_L3_BB, &ce->flags);
+
+ ret = intel_guc_assign_wa_guc_id(&engine->gt->uc.guc, ce);
+ if (ret < 0)
+ goto err;
+
+ engine->dummy_context = ce;
+ i915_vm_put(ce->vm);
+ return 0;
+
+err:
+ intel_engine_destroy_pinned_context(fetch_and_zero(&engine->dummy_context));
+err_ce:
+ i915_vm_put(&ppgtt->vm);
+ return ret;
+}
+
/*
* engine_init_common - initialize engine state which might require hw access
* @engine: Engine to initialize.
@@ -1465,6 +1504,13 @@ static int engine_init_common(struct intel_engine_cs *engine)
engine->emit_fini_breadcrumb_dw = ret;
engine->kernel_context = ce;
+ /* Wa_16018031267 / Wa_16018063123 */
+ if (NEEDS_FASTCOLOR_BLT_WABB(engine)) {
+ ret = setup_dummy_context(engine);
+ if (ret)
+ goto err_context;
+ }
+
return 0;
err_context:
@@ -1534,6 +1580,8 @@ void intel_engine_cleanup_common(struct intel_engine_cs *engine)
if (engine->default_state)
fput(engine->default_state);
+ if (engine->dummy_context)
+ intel_engine_destroy_pinned_context(engine->dummy_context);
if (engine->kernel_context)
intel_engine_destroy_pinned_context(engine->kernel_context);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_regs.h b/drivers/gpu/drm/i915/gt/intel_engine_regs.h
index fdd4ddd3a978a..b8618ee3e3041 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_regs.h
@@ -118,6 +118,9 @@
#define CCID_EXTENDED_STATE_RESTORE BIT(2)
#define CCID_EXTENDED_STATE_SAVE BIT(3)
#define RING_BB_PER_CTX_PTR(base) _MMIO((base) + 0x1c0) /* gen8+ */
+#define PER_CTX_BB_FORCE BIT(2)
+#define PER_CTX_BB_VALID BIT(0)
+
#define RING_INDIRECT_CTX(base) _MMIO((base) + 0x1c4) /* gen8+ */
#define RING_INDIRECT_CTX_OFFSET(base) _MMIO((base) + 0x1c8) /* gen8+ */
#define ECOSKPD(base) _MMIO((base) + 0x1d0)
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index a7e6775980043..18fbd0baebb9d 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -416,6 +416,7 @@ struct intel_engine_cs {
struct llist_head barrier_tasks;
struct intel_context *kernel_context; /* pinned */
+ struct intel_context *dummy_context; /* Wa_16018031267 / Wa_16018063123 */
/**
* pinned_contexts_list: List of pinned contexts. This list is only
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 239848bcb2a42..40cc0005dd735 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -83,6 +83,10 @@ struct drm_printer;
##__VA_ARGS__); \
} while (0)
+#define NEEDS_FASTCOLOR_BLT_WABB(engine) ( \
+ IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 55), IP_VER(12, 71)) && \
+ engine->class == COPY_ENGINE_CLASS)
+
static inline bool gt_is_root(struct intel_gt *gt)
{
return !gt->info.id;
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index eaf66d9031665..5f3d4a1de3a57 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -828,6 +828,18 @@ lrc_ring_indirect_offset_default(const struct intel_engine_cs *engine)
return 0;
}
+static void
+lrc_setup_bb_per_ctx(u32 *regs,
+ const struct intel_engine_cs *engine,
+ u32 ctx_bb_ggtt_addr)
+{
+ GEM_BUG_ON(lrc_ring_wa_bb_per_ctx(engine) == -1);
+ regs[lrc_ring_wa_bb_per_ctx(engine) + 1] =
+ ctx_bb_ggtt_addr |
+ PER_CTX_BB_FORCE |
+ PER_CTX_BB_VALID;
+}
+
static void
lrc_setup_indirect_ctx(u32 *regs,
const struct intel_engine_cs *engine,
@@ -1020,7 +1032,13 @@ static u32 context_wa_bb_offset(const struct intel_context *ce)
return PAGE_SIZE * ce->wa_bb_page;
}
-static u32 *context_indirect_bb(const struct intel_context *ce)
+/*
+ * per_ctx below determines which WABB section is used.
+ * When true, the function returns the location of the
+ * PER_CTX_BB. When false, the function returns the
+ * location of the INDIRECT_CTX.
+ */
+static u32 *context_wabb(const struct intel_context *ce, bool per_ctx)
{
void *ptr;
@@ -1029,6 +1047,7 @@ static u32 *context_indirect_bb(const struct intel_context *ce)
ptr = ce->lrc_reg_state;
ptr -= LRC_STATE_OFFSET; /* back to start of context image */
ptr += context_wa_bb_offset(ce);
+ ptr += per_ctx ? PAGE_SIZE : 0;
return ptr;
}
@@ -1105,7 +1124,8 @@ __lrc_alloc_state(struct intel_context *ce, struct intel_engine_cs *engine)
if (GRAPHICS_VER(engine->i915) >= 12) {
ce->wa_bb_page = context_size / PAGE_SIZE;
- context_size += PAGE_SIZE;
+ /* INDIRECT_CTX and PER_CTX_BB need separate pages. */
+ context_size += PAGE_SIZE * 2;
}
if (intel_context_is_parent(ce) && intel_engine_uses_guc(engine)) {
@@ -1407,12 +1427,86 @@ gen12_emit_indirect_ctx_xcs(const struct intel_context *ce, u32 *cs)
return gen12_emit_aux_table_inv(ce->engine, cs);
}
+static u32 *xehp_emit_fastcolor_blt_wabb(const struct intel_context *ce, u32 *cs)
+{
+ struct intel_gt *gt = ce->engine->gt;
+ int mocs = gt->mocs.uc_index << 1;
+
+ /**
+ * Wa_16018031267 / Wa_16018063123 requires that SW forces the
+ * main copy engine arbitration into round robin mode. We
+ * additionally need to submit the following WABB blt command
+ * to produce 4 subblits with each subblit generating 0 byte
+ * write requests as WABB:
+ *
+ * XY_FASTCOLOR_BLT
+ * BG0 -> 5100000E
+ * BG1 -> 0000003F (Dest pitch)
+ * BG2 -> 00000000 (X1, Y1) = (0, 0)
+ * BG3 -> 00040001 (X2, Y2) = (1, 4)
+ * BG4 -> scratch
+ * BG5 -> scratch
+ * BG6-12 -> 00000000
+ * BG13 -> 20004004 (Surf. Width= 2,Surf. Height = 5 )
+ * BG14 -> 00000010 (Qpitch = 4)
+ * BG15 -> 00000000
+ */
+ *cs++ = XY_FAST_COLOR_BLT_CMD | (16 - 2);
+ *cs++ = FIELD_PREP(XY_FAST_COLOR_BLT_MOCS_MASK, mocs) | 0x3f;
+ *cs++ = 0;
+ *cs++ = 4 << 16 | 1;
+ *cs++ = 0;
+ *cs++ = 0;
+ *cs++ = 0;
+ *cs++ = 0;
+ *cs++ = 0;
+ *cs++ = 0;
+ *cs++ = 0;
+ *cs++ = 0;
+ *cs++ = 0;
+ *cs++ = 0x20004004;
+ *cs++ = 0x10;
+ *cs++ = 0;
+
+ return cs;
+}
+
+static u32 *
+xehp_emit_per_ctx_bb(const struct intel_context *ce, u32 *cs)
+{
+ /* Wa_16018031267, Wa_16018063123 */
+ if (NEEDS_FASTCOLOR_BLT_WABB(ce->engine) &&
+ test_bit(CONTEXT_L3_BB, &ce->flags))
+ cs = xehp_emit_fastcolor_blt_wabb(ce, cs);
+
+ return cs;
+}
+
+static void
+setup_per_ctx_bb(const struct intel_context *ce,
+ const struct intel_engine_cs *engine,
+ u32 *(*emit)(const struct intel_context *, u32 *))
+{
+ /* Place PER_CTX_BB on next page after INDIRECT_CTX */
+ u32 * const start = context_wabb(ce, true);
+ u32 *cs;
+
+ cs = emit(ce, start);
+
+ /* PER_CTX_BB must manually terminate */
+ *cs++ = MI_BATCH_BUFFER_END;
+
+ GEM_BUG_ON(cs - start > I915_GTT_PAGE_SIZE / sizeof(*cs));
+ lrc_setup_bb_per_ctx(ce->lrc_reg_state, engine,
+ lrc_indirect_bb(ce) + PAGE_SIZE);
+}
+
static void
setup_indirect_ctx_bb(const struct intel_context *ce,
const struct intel_engine_cs *engine,
u32 *(*emit)(const struct intel_context *, u32 *))
{
- u32 * const start = context_indirect_bb(ce);
+ u32 * const start = context_wabb(ce, false);
u32 *cs;
cs = emit(ce, start);
@@ -1511,6 +1605,7 @@ u32 lrc_update_regs(const struct intel_context *ce,
/* Mutually exclusive wrt to global indirect bb */
GEM_BUG_ON(engine->wa_ctx.indirect_ctx.size);
setup_indirect_ctx_bb(ce, engine, fn);
+ setup_per_ctx_bb(ce, engine, xehp_emit_per_ctx_bb);
}
return lrc_descriptor(ce) | CTX_DESC_FORCE_RESTORE;
diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index 5f826b6dcf5d6..e17b8777d21dc 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -1555,7 +1555,7 @@ static int live_lrc_isolation(void *arg)
return err;
}
-static int indirect_ctx_submit_req(struct intel_context *ce)
+static int wabb_ctx_submit_req(struct intel_context *ce)
{
struct i915_request *rq;
int err = 0;
@@ -1579,7 +1579,8 @@ static int indirect_ctx_submit_req(struct intel_context *ce)
#define CTX_BB_CANARY_INDEX (CTX_BB_CANARY_OFFSET / sizeof(u32))
static u32 *
-emit_indirect_ctx_bb_canary(const struct intel_context *ce, u32 *cs)
+emit_wabb_ctx_canary(const struct intel_context *ce,
+ u32 *cs, bool per_ctx)
{
*cs++ = MI_STORE_REGISTER_MEM_GEN8 |
MI_SRM_LRM_GLOBAL_GTT |
@@ -1587,26 +1588,43 @@ emit_indirect_ctx_bb_canary(const struct intel_context *ce, u32 *cs)
*cs++ = i915_mmio_reg_offset(RING_START(0));
*cs++ = i915_ggtt_offset(ce->state) +
context_wa_bb_offset(ce) +
- CTX_BB_CANARY_OFFSET;
+ CTX_BB_CANARY_OFFSET +
+ (per_ctx ? PAGE_SIZE : 0);
*cs++ = 0;
return cs;
}
+static u32 *
+emit_indirect_ctx_bb_canary(const struct intel_context *ce, u32 *cs)
+{
+ return emit_wabb_ctx_canary(ce, cs, false);
+}
+
+static u32 *
+emit_per_ctx_bb_canary(const struct intel_context *ce, u32 *cs)
+{
+ return emit_wabb_ctx_canary(ce, cs, true);
+}
+
static void
-indirect_ctx_bb_setup(struct intel_context *ce)
+wabb_ctx_setup(struct intel_context *ce, bool per_ctx)
{
- u32 *cs = context_indirect_bb(ce);
+ u32 *cs = context_wabb(ce, per_ctx);
cs[CTX_BB_CANARY_INDEX] = 0xdeadf00d;
- setup_indirect_ctx_bb(ce, ce->engine, emit_indirect_ctx_bb_canary);
+ if (per_ctx)
+ setup_per_ctx_bb(ce, ce->engine, emit_per_ctx_bb_canary);
+ else
+ setup_indirect_ctx_bb(ce, ce->engine, emit_indirect_ctx_bb_canary);
}
-static bool check_ring_start(struct intel_context *ce)
+static bool check_ring_start(struct intel_context *ce, bool per_ctx)
{
const u32 * const ctx_bb = (void *)(ce->lrc_reg_state) -
- LRC_STATE_OFFSET + context_wa_bb_offset(ce);
+ LRC_STATE_OFFSET + context_wa_bb_offset(ce) +
+ (per_ctx ? PAGE_SIZE : 0);
if (ctx_bb[CTX_BB_CANARY_INDEX] == ce->lrc_reg_state[CTX_RING_START])
return true;
@@ -1618,21 +1636,21 @@ static bool check_ring_start(struct intel_context *ce)
return false;
}
-static int indirect_ctx_bb_check(struct intel_context *ce)
+static int wabb_ctx_check(struct intel_context *ce, bool per_ctx)
{
int err;
- err = indirect_ctx_submit_req(ce);
+ err = wabb_ctx_submit_req(ce);
if (err)
return err;
- if (!check_ring_start(ce))
+ if (!check_ring_start(ce, per_ctx))
return -EINVAL;
return 0;
}
-static int __live_lrc_indirect_ctx_bb(struct intel_engine_cs *engine)
+static int __lrc_wabb_ctx(struct intel_engine_cs *engine, bool per_ctx)
{
struct intel_context *a, *b;
int err;
@@ -1667,14 +1685,14 @@ static int __live_lrc_indirect_ctx_bb(struct intel_engine_cs *engine)
* As ring start is restored apriori of starting the indirect ctx bb and
* as it will be different for each context, it fits to this purpose.
*/
- indirect_ctx_bb_setup(a);
- indirect_ctx_bb_setup(b);
+ wabb_ctx_setup(a, per_ctx);
+ wabb_ctx_setup(b, per_ctx);
- err = indirect_ctx_bb_check(a);
+ err = wabb_ctx_check(a, per_ctx);
if (err)
goto unpin_b;
- err = indirect_ctx_bb_check(b);
+ err = wabb_ctx_check(b, per_ctx);
unpin_b:
intel_context_unpin(b);
@@ -1688,7 +1706,7 @@ static int __live_lrc_indirect_ctx_bb(struct intel_engine_cs *engine)
return err;
}
-static int live_lrc_indirect_ctx_bb(void *arg)
+static int lrc_wabb_ctx(void *arg, bool per_ctx)
{
struct intel_gt *gt = arg;
struct intel_engine_cs *engine;
@@ -1697,7 +1715,7 @@ static int live_lrc_indirect_ctx_bb(void *arg)
for_each_engine(engine, gt, id) {
intel_engine_pm_get(engine);
- err = __live_lrc_indirect_ctx_bb(engine);
+ err = __lrc_wabb_ctx(engine, per_ctx);
intel_engine_pm_put(engine);
if (igt_flush_test(gt->i915))
@@ -1710,6 +1728,16 @@ static int live_lrc_indirect_ctx_bb(void *arg)
return err;
}
+static int live_lrc_indirect_ctx_bb(void *arg)
+{
+ return lrc_wabb_ctx(arg, false);
+}
+
+static int live_lrc_per_ctx_bb(void *arg)
+{
+ return lrc_wabb_ctx(arg, true);
+}
+
static void garbage_reset(struct intel_engine_cs *engine,
struct i915_request *rq)
{
@@ -1947,6 +1975,7 @@ int intel_lrc_live_selftests(struct drm_i915_private *i915)
SUBTEST(live_lrc_garbage),
SUBTEST(live_pphwsp_runtime),
SUBTEST(live_lrc_indirect_ctx_bb),
+ SUBTEST(live_lrc_per_ctx_bb),
};
if (!HAS_LOGICAL_RING_CONTEXTS(i915))
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 cabdc645fcddb..07284defb1e01 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -2222,6 +2222,11 @@ static void unpin_guc_id(struct intel_guc *guc, struct intel_context *ce)
spin_unlock_irqrestore(&guc->submission_state.lock, flags);
}
+int intel_guc_assign_wa_guc_id(struct intel_guc *guc, struct intel_context *ce)
+{
+ return pin_guc_id(guc, ce);
+}
+
static int __guc_action_register_multi_lrc_v69(struct intel_guc *guc,
struct intel_context *ce,
u32 guc_id,
@@ -4167,9 +4172,11 @@ static inline int guc_kernel_context_pin(struct intel_guc *guc,
if (!test_bit(CONTEXT_GUC_INIT, &ce->flags))
guc_context_init(ce);
- ret = try_context_registration(ce, true);
- if (ret)
- unpin_guc_id(guc, ce);
+ if (!intel_context_is_hidden(ce)) {
+ ret = try_context_registration(ce, true);
+ if (ret)
+ unpin_guc_id(guc, ce);
+ }
return ret;
}
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 c57b29cdb1a64..56abe479a084b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
@@ -18,6 +18,7 @@ int intel_guc_submission_init(struct intel_guc *guc);
int intel_guc_submission_enable(struct intel_guc *guc);
void intel_guc_submission_disable(struct intel_guc *guc);
void intel_guc_submission_fini(struct intel_guc *guc);
+int intel_guc_assign_wa_guc_id(struct intel_guc *guc, struct intel_context *ce);
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);
--
2.25.1
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