diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_nir.cpp | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp index 788315f6c52..ad347fcdbaf 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp @@ -1849,15 +1849,33 @@ fs_visitor::nir_emit_tes_intrinsic(const fs_builder &bld, fs_inst *inst; if (indirect_offset.file == BAD_FILE) { - /* Replicate the patch handle to all enabled channels */ - const fs_reg srcs[] = { - retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UD) - }; - fs_reg patch_handle = bld.vgrf(BRW_REGISTER_TYPE_UD, 1); - bld.LOAD_PAYLOAD(patch_handle, srcs, ARRAY_SIZE(srcs), 0); - - inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8, dest, patch_handle); - inst->mlen = 1; + /* Arbitrarily only push up to 32 vec4 slots worth of data, + * which is 16 registers (since each holds 2 vec4 slots). + */ + const unsigned max_push_slots = 32; + if (imm_offset < max_push_slots) { + fs_reg src = fs_reg(ATTR, imm_offset / 2, dest.type); + for (int i = 0; i < instr->num_components; i++) { + bld.MOV(offset(dest, bld, i), + component(src, 4 * (imm_offset % 2) + i)); + } + tes_prog_data->base.urb_read_length = + MAX2(tes_prog_data->base.urb_read_length, + DIV_ROUND_UP(imm_offset + 1, 2)); + } else { + /* Replicate the patch handle to all enabled channels */ + const fs_reg srcs[] = { + retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UD) + }; + fs_reg patch_handle = bld.vgrf(BRW_REGISTER_TYPE_UD, 1); + bld.LOAD_PAYLOAD(patch_handle, srcs, ARRAY_SIZE(srcs), 0); + + inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8, dest, patch_handle); + inst->mlen = 1; + inst->offset = imm_offset; + inst->base_mrf = -1; + inst->regs_written = instr->num_components; + } } else { /* Indirect indexing - use per-slot offsets as well. */ const fs_reg srcs[] = { @@ -1869,10 +1887,10 @@ fs_visitor::nir_emit_tes_intrinsic(const fs_builder &bld, inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT, dest, payload); inst->mlen = 2; + inst->offset = imm_offset; + inst->base_mrf = -1; + inst->regs_written = instr->num_components; } - inst->offset = imm_offset; - inst->base_mrf = -1; - inst->regs_written = instr->num_components; break; } default: |