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provide u64 broadcasting mechanism in base layer wavefront lane context, allows more flexible data sharing mechanism which does not depend on statics; reshape dasm building codepath for clicking into artifact cache

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This commit is contained in:
Ryan Fleury
2025-09-22 16:21:30 -07:00
parent 8a1e6ab2e6
commit 4b1939bd6d
12 changed files with 444 additions and 146 deletions
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src/base/base_thread_context.h
+5 -3
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@@ -5,7 +5,7 @@
#define BASE_THREAD_CONTEXT_H
////////////////////////////////
//~ rjf: Lane Group Context
//~ rjf: Lane Context
typedef struct LaneCtx LaneCtx;
struct LaneCtx
@@ -13,6 +13,7 @@ struct LaneCtx
U64 lane_idx;
U64 lane_count;
Barrier barrier;
U64 *broadcast_memory;
};
////////////////////////////////
@@ -87,12 +88,13 @@ internal Arena *tctx_get_scratch(Arena **conflicts, U64 count);
//- rjf: lane metadata
internal LaneCtx tctx_set_lane_ctx(LaneCtx lane_ctx);
internal void tctx_lane_barrier_wait(void);
internal void tctx_lane_barrier_wait(void *broadcast_ptr, U64 broadcast_size, U64 broadcast_src_lane_idx);
#define lane_idx() (tctx_selected()->lane_ctx.lane_idx)
#define lane_count() (tctx_selected()->lane_ctx.lane_count)
#define lane_from_task_idx(idx) ((idx)%lane_count())
#define lane_ctx(ctx) tctx_set_lane_ctx((ctx))
#define lane_sync() tctx_lane_barrier_wait()
#define lane_sync() tctx_lane_barrier_wait(0, 0, 0)
#define lane_sync_u64(ptr, src_lane_idx) tctx_lane_barrier_wait((ptr), sizeof(U64), (src_lane_idx))
#define lane_range(count) m_range_from_n_idx_m_count(lane_idx(), lane_count(), (count))
//- rjf: thread names