Module: Mesa Branch: master Commit: 13c34cf8ca43d0f9c1e1a663e6a3783b0938dfd9 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=13c34cf8ca43d0f9c1e1a663e6a3783b0938dfd9
Author: Marek Olšák <marek.ol...@amd.com> Date: Fri Dec 2 19:40:40 2016 +0100 radeonsi: wait for outstanding LDS instructions in memory barriers if needed Cc: 13.0 <mesa-sta...@lists.freedesktop.org> Reviewed-by: Nicolai Hähnle <nicolai.haeh...@amd.com> --- src/gallium/drivers/radeonsi/si_shader.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 53a8493..2365349 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 _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-commit