diff options
| author | Marek Olšák <[email protected]> | 2016-12-02 19:40:40 +0100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2016-12-07 19:40:29 +0100 |
| commit | 13c34cf8ca43d0f9c1e1a663e6a3783b0938dfd9 (patch) | |
| tree | 517141e67aa428bb98394f3ff9f2e16a155a1c27 /src/gallium/drivers/radeonsi | |
| parent | 16ba04d6deea4f89cbaec00a001d5c2ac841692b (diff) | |
radeonsi: wait for outstanding LDS instructions in memory barriers if needed
Cc: 13.0 <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'src/gallium/drivers/radeonsi')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 53a8493dfce..236534906f5 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -3291,6 +3291,7 @@ static void emit_optimization_barrier(struct si_shader_context *ctx) #endif /* Combine these with & instead of |. */ +#define NOOP_WAITCNT 0xf7f #define LGKM_CNT 0x07f #define VM_CNT 0xf70 @@ -3311,8 +3312,23 @@ static void membar_emit( struct lp_build_emit_data *emit_data) { struct si_shader_context *ctx = si_shader_context(bld_base); + LLVMValueRef src0 = lp_build_emit_fetch(bld_base, emit_data->inst, 0, 0); + unsigned flags = LLVMConstIntGetZExtValue(src0); + unsigned waitcnt = NOOP_WAITCNT; - emit_waitcnt(ctx, VM_CNT); + if (flags & TGSI_MEMBAR_THREAD_GROUP) + waitcnt &= VM_CNT & LGKM_CNT; + + if (flags & (TGSI_MEMBAR_ATOMIC_BUFFER | + TGSI_MEMBAR_SHADER_BUFFER | + TGSI_MEMBAR_SHADER_IMAGE)) + waitcnt &= VM_CNT; + + if (flags & TGSI_MEMBAR_SHARED) + waitcnt &= LGKM_CNT; + + if (waitcnt != NOOP_WAITCNT) + emit_waitcnt(ctx, waitcnt); } static LLVMValueRef |