static void
gs_setup_payload(struct gs_compile_context *gcc)
{
int grf, i;
grf = 0;
/* r0: payload header */
gcc->payload.header = tsrc_d(tsrc(TOY_FILE_GRF, grf, 0));
grf++;
/* r1: SVBI */
if (gcc->write_so) {
gcc->payload.svbi = tsrc_ud(tsrc(TOY_FILE_GRF, grf, 0));
grf++;
}
/* URB data */
gcc->shader->in.start_grf = grf;
/* no pull constants */
/* VUEs */
for (i = 0; i < gcc->in_vue_count; i++) {
gcc->payload.vues[i] = tsrc(TOY_FILE_GRF, grf, 0);
grf += gcc->in_vue_size;
}
gcc->first_free_grf = grf;
gcc->last_free_grf = 127;
}
static void
fs_lower_opcode_tgsi_const_gen6(struct fs_compile_context *fcc,
struct toy_dst dst, int dim, struct toy_src idx)
{
const struct toy_dst header =
tdst_ud(tdst(TOY_FILE_MRF, fcc->first_free_mrf, 0));
const struct toy_dst global_offset =
tdst_ud(tdst(TOY_FILE_MRF, fcc->first_free_mrf, 2 * 4));
const struct toy_src r0 = tsrc_ud(tsrc(TOY_FILE_GRF, 0, 0));
struct toy_compiler *tc = &fcc->tc;
unsigned msg_type, msg_ctrl, msg_len;
struct toy_inst *inst;
struct toy_src desc;
struct toy_dst tmp, real_dst[4];
int i;
/* set message header */
inst = tc_MOV(tc, header, r0);
inst->mask_ctrl = BRW_MASK_DISABLE;
/* set global offset */
inst = tc_MOV(tc, global_offset, idx);
inst->mask_ctrl = BRW_MASK_DISABLE;
inst->exec_size = BRW_EXECUTE_1;
inst->src[0].rect = TOY_RECT_010;
msg_type = BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ;
msg_ctrl = BRW_DATAPORT_OWORD_BLOCK_1_OWORDLOW << 8;
msg_len = 1;
desc = tsrc_imm_mdesc_data_port(tc, false, msg_len, 1, true, false,
msg_type, msg_ctrl, ILO_WM_CONST_SURFACE(dim));
tmp = tc_alloc_tmp(tc);
tc_SEND(tc, tmp, tsrc_from(header), desc, fcc->const_cache);
tdst_transpose(dst, real_dst);
for (i = 0; i < 4; i++) {
const struct toy_src src =
tsrc_offset(tsrc_rect(tsrc_from(tmp), TOY_RECT_010), 0, i);
/* cast to type D to make sure these are raw moves */
tc_MOV(tc, tdst_d(real_dst[i]), tsrc_d(src));
}
}
static void
fs_lower_opcode_tgsi_const_gen7(struct fs_compile_context *fcc,
struct toy_dst dst, int dim, struct toy_src idx)
{
struct toy_compiler *tc = &fcc->tc;
const struct toy_dst offset =
tdst_ud(tdst(TOY_FILE_MRF, fcc->first_free_mrf, 0));
struct toy_src desc;
struct toy_inst *inst;
struct toy_dst tmp, real_dst[4];
int i;
/*
* In 4c1fdae0a01b3f92ec03b61aac1d3df500d51fc6, pull constant load was
* changed from OWord Block Read to ld to increase performance in the
* classic driver. Since we use the constant cache instead of the data
* cache, I wonder if we still want to follow the classic driver.
*/
/* set offset */
inst = tc_MOV(tc, offset, tsrc_rect(idx, TOY_RECT_010));
inst->exec_size = BRW_EXECUTE_8;
inst->mask_ctrl = BRW_MASK_DISABLE;
desc = tsrc_imm_mdesc_sampler(tc, 1, 1, false,
BRW_SAMPLER_SIMD_MODE_SIMD4X2,
GEN5_SAMPLER_MESSAGE_SAMPLE_LD,
0,
ILO_WM_CONST_SURFACE(dim));
tmp = tc_alloc_tmp(tc);
inst = tc_SEND(tc, tmp, tsrc_from(offset), desc, BRW_SFID_SAMPLER);
inst->exec_size = BRW_EXECUTE_8;
inst->mask_ctrl = BRW_MASK_DISABLE;
tdst_transpose(dst, real_dst);
for (i = 0; i < 4; i++) {
const struct toy_src src =
tsrc_offset(tsrc_rect(tsrc_from(tmp), TOY_RECT_010), 0, i);
/* cast to type D to make sure these are raw moves */
tc_MOV(tc, tdst_d(real_dst[i]), tsrc_d(src));
}
}
static void
vs_lower_opcode_tgsi_sv(struct vs_compile_context *vcc,
struct toy_dst dst, int dim, int idx)
{
struct toy_compiler *tc = &vcc->tc;
const struct toy_tgsi *tgsi = &vcc->tgsi;
int slot;
assert(!dim);
slot = toy_tgsi_find_system_value(tgsi, idx);
if (slot < 0)
return;
switch (tgsi->system_values[slot].semantic_name) {
case TGSI_SEMANTIC_INSTANCEID:
case TGSI_SEMANTIC_VERTEXID:
/*
* In 3DSTATE_VERTEX_ELEMENTS, we prepend an extra vertex element for
* the generated IDs, with VID in the X channel and IID in the Y
* channel.
*/
{
const int grf = vcc->first_vue_grf;
const struct toy_src src = tsrc(TOY_FILE_GRF, grf, 0);
const enum toy_swizzle swizzle =
(tgsi->system_values[slot].semantic_name ==
TGSI_SEMANTIC_INSTANCEID) ? TOY_SWIZZLE_Y : TOY_SWIZZLE_X;
tc_MOV(tc, tdst_d(dst), tsrc_d(tsrc_swizzle1(src, swizzle)));
}
break;
case TGSI_SEMANTIC_PRIMID:
default:
tc_fail(tc, "unhandled system value");
tc_MOV(tc, dst, tsrc_imm_d(0));
break;
}
}
static void
fetch_face(struct fs_compile_context *fcc, struct toy_dst dst)
{
struct toy_compiler *tc = &fcc->tc;
const struct toy_src r0 = tsrc_d(tsrc(TOY_FILE_GRF, 0, 0));
struct toy_dst tmp_f, tmp;
struct toy_dst real_dst[4];
tdst_transpose(dst, real_dst);
tmp_f = tc_alloc_tmp(tc);
tmp = tdst_d(tmp_f);
tc_SHR(tc, tmp, tsrc_rect(r0, TOY_RECT_010), tsrc_imm_d(15));
tc_AND(tc, tmp, tsrc_from(tmp), tsrc_imm_d(1));
tc_MOV(tc, tmp_f, tsrc_from(tmp));
/* convert to 1.0 and -1.0 */
tc_MUL(tc, tmp_f, tsrc_from(tmp_f), tsrc_imm_f(-2.0f));
tc_ADD(tc, real_dst[0], tsrc_from(tmp_f), tsrc_imm_f(1.0f));
tc_MOV(tc, real_dst[1], tsrc_imm_f(0.0f));
tc_MOV(tc, real_dst[2], tsrc_imm_f(0.0f));
tc_MOV(tc, real_dst[3], tsrc_imm_f(1.0f));
}
static void
gs_lower_opcode_emit_so_static(struct gs_compile_context *gcc)
{
struct toy_compiler *tc = &gcc->tc;
struct toy_inst *inst;
int i, j;
if (gcc->static_data.num_vertices_in_prim < gcc->out_vue_min_count)
return;
inst = tc_MOV(tc, tdst_w(gcc->vars.tmp), tsrc_imm_v(0x03020100));
inst->exec_size = GEN6_EXECSIZE_8;
inst->mask_ctrl = GEN6_MASKCTRL_NOMASK;
tc_ADD(tc, tdst_d(gcc->vars.tmp), tsrc_from(tdst_d(gcc->vars.tmp)),
tsrc_rect(tsrc_from(gcc->vars.so_index), TOY_RECT_010));
tc_IF(tc, tdst_null(),
tsrc_rect(tsrc_offset(tsrc_from(tdst_d(gcc->vars.tmp)), 0, gcc->out_vue_min_count - 1), TOY_RECT_010),
tsrc_rect(tsrc_offset(gcc->payload.svbi, 0, 4), TOY_RECT_010),
GEN6_COND_LE);
{
for (i = 0; i < gcc->out_vue_min_count; i++) {
for (j = 0; j < gcc->so_info->num_outputs; j++) {
const int idx = gcc->so_info->output[j].register_index;
struct toy_src index, out;
int binding_table_index;
bool write_commit;
index = tsrc_d(tsrc_offset(tsrc_from(gcc->vars.tmp), 0, i));
if (i == gcc->out_vue_min_count - 1) {
out = gcc->vars.tgsi_outs[idx];
}
else {
/* gcc->vars.buffer_cur also points to the first vertex */
const int buf =
(gcc->vars.buffer_cur + i) % gcc->vars.buffer_needed;
out = tsrc_offset(tsrc_from(gcc->vars.buffers[buf]), idx, 0);
}
out = tsrc_offset(out, 0, gcc->so_info->output[j].start_component);
/*
* From the Sandy Bridge PRM, volume 4 part 2, page 19:
*
* "The Kernel must do a write commit on the last write to DAP
* prior to a URB_WRITE with End of Thread."
*/
write_commit =
(gcc->static_data.num_vertices == gcc->static_data.total_vertices &&
i == gcc->out_vue_min_count - 1 &&
j == gcc->so_info->num_outputs - 1);
binding_table_index = gcc->shader->bt.gen6_so_base + j;
gs_write_so(gcc, gcc->vars.tmp, index,
out, write_commit, binding_table_index);
/*
* From the Sandy Bridge PRM, volume 4 part 1, page 168:
*
* "The write commit does not modify the destination register, but
* merely clears the dependency associated with the destination
* register. Thus, a simple "mov" instruction using the register as a
* source is sufficient to wait for the write commit to occur."
*/
if (write_commit)
tc_MOV(tc, gcc->vars.tmp, tsrc_from(gcc->vars.tmp));
}
}
/* SONumPrimsWritten occupies the higher word of m0.2 of URB_WRITE */
tc_ADD(tc, gcc->vars.so_written,
tsrc_from(gcc->vars.so_written), tsrc_imm_d(1 << 16));
tc_ADD(tc, gcc->vars.so_index,
tsrc_from(gcc->vars.so_index), tsrc_imm_d(gcc->out_vue_min_count));
}
tc_ENDIF(tc);
}