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intel/fs: Implement scoped_memory_barrier

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Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Caio Marcelo de Oliveira Filho
2019-09-05 11:08:05 -07:00
parent 901071044e
commit e142061399
1 changed files with 19 additions and 8 deletions
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27
src/intel/compiler/brw_fs_nir.cpp
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@@ -4208,6 +4208,7 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
break;
}
case nir_intrinsic_scoped_memory_barrier:
case nir_intrinsic_group_memory_barrier:
case nir_intrinsic_memory_barrier_shared:
case nir_intrinsic_memory_barrier_atomic_counter:
@@ -4215,15 +4216,25 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
case nir_intrinsic_memory_barrier_image:
case nir_intrinsic_memory_barrier: {
bool l3_fence, slm_fence;
if (devinfo->gen >= 11) {
l3_fence = instr->intrinsic != nir_intrinsic_memory_barrier_shared;
slm_fence = instr->intrinsic == nir_intrinsic_group_memory_barrier ||
instr->intrinsic == nir_intrinsic_memory_barrier ||
instr->intrinsic == nir_intrinsic_memory_barrier_shared;
} else {
if (instr->intrinsic == nir_intrinsic_scoped_memory_barrier) {
nir_variable_mode modes = nir_intrinsic_memory_modes(instr);
l3_fence = modes & (nir_var_shader_out |
nir_var_mem_ssbo |
nir_var_mem_global);
/* Prior to gen11, we only have one kind of fence. */
l3_fence = true;
slm_fence = false;
slm_fence = devinfo->gen >= 11 && (modes & nir_var_mem_shared);
l3_fence |= devinfo->gen < 11 && (modes & nir_var_mem_shared);
} else {
if (devinfo->gen >= 11) {
l3_fence = instr->intrinsic != nir_intrinsic_memory_barrier_shared;
slm_fence = instr->intrinsic == nir_intrinsic_group_memory_barrier ||
instr->intrinsic == nir_intrinsic_memory_barrier ||
instr->intrinsic == nir_intrinsic_memory_barrier_shared;
} else {
/* Prior to gen11, we only have one kind of fence. */
l3_fence = true;
slm_fence = false;
}
}
/* Be conservative in Gen11+ and always stall in a fence. Since there