* native instructions.
*/
-#include "main/macros.h"
-#include "brw_context.h"
#include "brw_eu.h"
#include "brw_fs.h"
#include "brw_cfg.h"
+#include "brw_program.h"
-static uint32_t brw_file_from_reg(fs_reg *reg)
+static enum brw_reg_file
+brw_file_from_reg(fs_reg *reg)
{
switch (reg->file) {
- case GRF:
+ case ARF:
+ return BRW_ARCHITECTURE_REGISTER_FILE;
+ case FIXED_GRF:
+ case VGRF:
return BRW_GENERAL_REGISTER_FILE;
case MRF:
return BRW_MESSAGE_REGISTER_FILE;
case IMM:
return BRW_IMMEDIATE_VALUE;
- default:
+ case BAD_FILE:
+ case ATTR:
+ case UNIFORM:
unreachable("not reached");
}
+ return BRW_ARCHITECTURE_REGISTER_FILE;
}
static struct brw_reg
-brw_reg_from_fs_reg(fs_reg *reg)
+brw_reg_from_fs_reg(fs_inst *inst, fs_reg *reg, unsigned gen, bool compressed)
{
+ assert(reg->reg_offset == 0);
struct brw_reg brw_reg;
switch (reg->file) {
- case GRF:
case MRF:
+ assert((reg->nr & ~BRW_MRF_COMPR4) < BRW_MAX_MRF(gen));
+ /* Fallthrough */
+ case VGRF:
if (reg->stride == 0) {
- brw_reg = brw_vec1_reg(brw_file_from_reg(reg), reg->reg, 0);
- } else if (reg->width < 8) {
- brw_reg = brw_vec8_reg(brw_file_from_reg(reg), reg->reg, 0);
- brw_reg = stride(brw_reg, reg->width * reg->stride,
- reg->width, reg->stride);
+ brw_reg = brw_vec1_reg(brw_file_from_reg(reg), reg->nr, 0);
} else {
/* From the Haswell PRM:
*
- * VertStride must be used to cross GRF register boundaries. This
- * rule implies that elements within a 'Width' cannot cross GRF
- * boundaries.
+ * "VertStride must be used to cross GRF register boundaries. This
+ * rule implies that elements within a 'Width' cannot cross GRF
+ * boundaries."
*
- * So, for registers with width > 8, we have to use a width of 8
- * and trust the compression state to sort out the exec size.
+ * The maximum width value that could satisfy this restriction is:
+ */
+ const unsigned reg_width = REG_SIZE / (reg->stride * type_sz(reg->type));
+
+ /* Because the hardware can only split source regions at a whole
+ * multiple of width during decompression (i.e. vertically), clamp
+ * the value obtained above to the physical execution size of a
+ * single decompressed chunk of the instruction:
+ */
+ const unsigned phys_width = compressed ? inst->exec_size / 2 :
+ inst->exec_size;
+
+ /* XXX - The equation above is strictly speaking not correct on
+ * hardware that supports unbalanced GRF writes -- On Gen9+
+ * each decompressed chunk of the instruction may have a
+ * different execution size when the number of components
+ * written to each destination GRF is not the same.
*/
- brw_reg = brw_vec8_reg(brw_file_from_reg(reg), reg->reg, 0);
- brw_reg = stride(brw_reg, 8 * reg->stride, 8, reg->stride);
+ const unsigned width = MIN2(reg_width, phys_width);
+ brw_reg = brw_vecn_reg(width, brw_file_from_reg(reg), reg->nr, 0);
+ brw_reg = stride(brw_reg, width * reg->stride, width, reg->stride);
}
brw_reg = retype(brw_reg, reg->type);
brw_reg = byte_offset(brw_reg, reg->subreg_offset);
+ brw_reg.abs = reg->abs;
+ brw_reg.negate = reg->negate;
break;
+ case ARF:
+ case FIXED_GRF:
case IMM:
- switch (reg->type) {
- case BRW_REGISTER_TYPE_F:
- brw_reg = brw_imm_f(reg->fixed_hw_reg.dw1.f);
- break;
- case BRW_REGISTER_TYPE_D:
- brw_reg = brw_imm_d(reg->fixed_hw_reg.dw1.d);
- break;
- case BRW_REGISTER_TYPE_UD:
- brw_reg = brw_imm_ud(reg->fixed_hw_reg.dw1.ud);
- break;
- case BRW_REGISTER_TYPE_W:
- brw_reg = brw_imm_w(reg->fixed_hw_reg.dw1.d);
- break;
- case BRW_REGISTER_TYPE_UW:
- brw_reg = brw_imm_uw(reg->fixed_hw_reg.dw1.ud);
- break;
- case BRW_REGISTER_TYPE_VF:
- brw_reg = brw_imm_vf(reg->fixed_hw_reg.dw1.ud);
- break;
- default:
- unreachable("not reached");
- }
- break;
- case HW_REG:
- assert(reg->type == reg->fixed_hw_reg.type);
- brw_reg = reg->fixed_hw_reg;
+ assert(reg->subreg_offset == 0);
+ brw_reg = reg->as_brw_reg();
break;
case BAD_FILE:
/* Probably unused. */
brw_reg = brw_null_reg();
break;
- default:
+ case ATTR:
+ case UNIFORM:
unreachable("not reached");
}
- if (reg->abs)
- brw_reg = brw_abs(brw_reg);
- if (reg->negate)
- brw_reg = negate(brw_reg);
return brw_reg;
}
-fs_generator::fs_generator(struct brw_context *brw,
+fs_generator::fs_generator(const struct brw_compiler *compiler, void *log_data,
void *mem_ctx,
const void *key,
struct brw_stage_prog_data *prog_data,
- struct gl_program *prog,
unsigned promoted_constants,
bool runtime_check_aads_emit,
- const char *stage_abbrev)
+ gl_shader_stage stage)
- : brw(brw), key(key),
+ : compiler(compiler), log_data(log_data),
+ devinfo(compiler->devinfo), key(key),
prog_data(prog_data),
- prog(prog), promoted_constants(promoted_constants),
+ promoted_constants(promoted_constants),
runtime_check_aads_emit(runtime_check_aads_emit), debug_flag(false),
- stage_abbrev(stage_abbrev), mem_ctx(mem_ctx)
+ stage(stage), mem_ctx(mem_ctx)
{
- ctx = &brw->ctx;
-
- p = rzalloc(mem_ctx, struct brw_compile);
- brw_init_compile(brw, p, mem_ctx);
+ p = rzalloc(mem_ctx, struct brw_codegen);
+ brw_init_codegen(devinfo, p, mem_ctx);
}
fs_generator::~fs_generator()
bool
fs_generator::patch_discard_jumps_to_fb_writes()
{
- if (brw->gen < 6 || this->discard_halt_patches.is_empty())
+ if (devinfo->gen < 6 || this->discard_halt_patches.is_empty())
return false;
- int scale = brw_jump_scale(brw);
+ int scale = brw_jump_scale(p->devinfo);
/* There is a somewhat strange undocumented requirement of using
* HALT, according to the simulator. If some channel has HALTed to
* tests.
*/
brw_inst *last_halt = gen6_HALT(p);
- brw_inst_set_uip(brw, last_halt, 1 * scale);
- brw_inst_set_jip(brw, last_halt, 1 * scale);
+ brw_inst_set_uip(p->devinfo, last_halt, 1 * scale);
+ brw_inst_set_jip(p->devinfo, last_halt, 1 * scale);
int ip = p->nr_insn;
foreach_in_list(ip_record, patch_ip, &discard_halt_patches) {
brw_inst *patch = &p->store[patch_ip->ip];
- assert(brw_inst_opcode(brw, patch) == BRW_OPCODE_HALT);
+ assert(brw_inst_opcode(p->devinfo, patch) == BRW_OPCODE_HALT);
/* HALT takes a half-instruction distance from the pre-incremented IP. */
- brw_inst_set_uip(brw, patch, (ip - patch_ip->ip) * scale);
+ brw_inst_set_uip(p->devinfo, patch, (ip - patch_ip->ip) * scale);
}
this->discard_halt_patches.make_empty();
brw_wm_prog_data *prog_data = (brw_wm_prog_data*) this->prog_data;
- if (brw->gen < 6) {
+ if (devinfo->gen < 6) {
brw_push_insn_state(p);
brw_set_default_exec_size(p, BRW_EXECUTE_8);
brw_set_default_mask_control(p, BRW_MASK_DISABLE);
if (inst->opcode == FS_OPCODE_REP_FB_WRITE)
msg_control = BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD16_SINGLE_SOURCE_REPLICATED;
else if (prog_data->dual_src_blend) {
- if (dispatch_width == 8 || !inst->eot)
+ if (!inst->group)
msg_control = BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD8_DUAL_SOURCE_SUBSPAN01;
else
msg_control = BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD8_DUAL_SOURCE_SUBSPAN23;
- } else if (dispatch_width == 16)
+ } else if (inst->exec_size == 16)
msg_control = BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD16_SINGLE_SOURCE;
else
msg_control = BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD8_SINGLE_SOURCE_SUBSPAN01;
brw_fb_WRITE(p,
- dispatch_width,
payload,
implied_header,
msg_control,
0,
inst->eot,
last_render_target,
- inst->header_present);
+ inst->header_size != 0);
brw_mark_surface_used(&prog_data->base, surf_index);
}
const brw_wm_prog_key * const key = (brw_wm_prog_key * const) this->key;
struct brw_reg implied_header;
- if (brw->gen < 8 && !brw->is_haswell) {
+ if (devinfo->gen < 8 && !devinfo->is_haswell) {
brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
}
/* Header is 2 regs, g0 and g1 are the contents. g0 will be implied
* move, here's g1.
*/
- if (inst->header_present) {
+ if (inst->header_size != 0) {
brw_push_insn_state(p);
brw_set_default_mask_control(p, BRW_MASK_DISABLE);
brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
if (prog_data->uses_kill) {
struct brw_reg pixel_mask;
- if (brw->gen >= 6)
+ if (devinfo->gen >= 6)
pixel_mask = retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UW);
else
pixel_mask = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW);
brw_MOV(p, pixel_mask, brw_flag_reg(0, 1));
}
- if (brw->gen >= 6) {
+ if (devinfo->gen >= 6) {
brw_push_insn_state(p);
brw_set_default_exec_size(p, BRW_EXECUTE_16);
brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
brw_imm_ud(inst->target));
}
+ /* Set computes stencil to render target */
+ if (prog_data->computed_stencil) {
+ brw_OR(p,
+ vec1(retype(payload, BRW_REGISTER_TYPE_UD)),
+ vec1(retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD)),
+ brw_imm_ud(0x1 << 14));
+ }
+
implied_header = brw_null_reg();
} else {
implied_header = retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW);
fire_fb_write(inst, payload, implied_header, inst->mlen);
} else {
/* This can only happen in gen < 6 */
- assert(brw->gen < 6);
+ assert(devinfo->gen < 6);
struct brw_reg v1_null_ud = vec1(retype(brw_null_reg(), BRW_REGISTER_TYPE_UD));
v1_null_ud,
retype(brw_vec1_grf(1, 6), BRW_REGISTER_TYPE_UD),
brw_imm_ud(1<<26));
- brw_inst_set_cond_modifier(brw, brw_last_inst, BRW_CONDITIONAL_NZ);
+ brw_inst_set_cond_modifier(p->devinfo, brw_last_inst, BRW_CONDITIONAL_NZ);
int jmp = brw_JMPI(p, brw_imm_ud(0), BRW_PREDICATE_NORMAL) - p->store;
- brw_inst_set_exec_size(brw, brw_last_inst, BRW_EXECUTE_1);
+ brw_inst_set_exec_size(p->devinfo, brw_last_inst, BRW_EXECUTE_1);
{
/* Don't send AA data */
fire_fb_write(inst, offset(payload, 1), implied_header, inst->mlen-1);
}
}
+void
+fs_generator::generate_fb_read(fs_inst *inst, struct brw_reg dst,
+ struct brw_reg payload)
+{
+ brw_wm_prog_data *prog_data =
+ reinterpret_cast<brw_wm_prog_data *>(this->prog_data);
+ const unsigned surf_index =
+ prog_data->binding_table.render_target_start + inst->target;
+
+ gen9_fb_READ(p, dst, payload, surf_index,
+ inst->header_size, inst->regs_written,
+ prog_data->persample_dispatch);
+
+ brw_mark_surface_used(&prog_data->base, surf_index);
+}
+
+void
+fs_generator::generate_mov_indirect(fs_inst *inst,
+ struct brw_reg dst,
+ struct brw_reg reg,
+ struct brw_reg indirect_byte_offset)
+{
+ assert(indirect_byte_offset.type == BRW_REGISTER_TYPE_UD);
+ assert(indirect_byte_offset.file == BRW_GENERAL_REGISTER_FILE);
+
+ unsigned imm_byte_offset = reg.nr * REG_SIZE + reg.subnr;
+
+ if (indirect_byte_offset.file == BRW_IMMEDIATE_VALUE) {
+ imm_byte_offset += indirect_byte_offset.ud;
+
+ reg.nr = imm_byte_offset / REG_SIZE;
+ reg.subnr = imm_byte_offset % REG_SIZE;
+ brw_MOV(p, dst, reg);
+ } else {
+ /* Prior to Broadwell, there are only 8 address registers. */
+ assert(inst->exec_size == 8 || devinfo->gen >= 8);
+
+ /* We use VxH indirect addressing, clobbering a0.0 through a0.7. */
+ struct brw_reg addr = vec8(brw_address_reg(0));
+
+ /* The destination stride of an instruction (in bytes) must be greater
+ * than or equal to the size of the rest of the instruction. Since the
+ * address register is of type UW, we can't use a D-type instruction.
+ * In order to get around this, re retype to UW and use a stride.
+ */
+ indirect_byte_offset =
+ retype(spread(indirect_byte_offset, 2), BRW_REGISTER_TYPE_UW);
+
+ struct brw_reg ind_src;
+ if (devinfo->gen < 8) {
+ /* From the Haswell PRM section "Register Region Restrictions":
+ *
+ * "The lower bits of the AddressImmediate must not overflow to
+ * change the register address. The lower 5 bits of Address
+ * Immediate when added to lower 5 bits of address register gives
+ * the sub-register offset. The upper bits of Address Immediate
+ * when added to upper bits of address register gives the register
+ * address. Any overflow from sub-register offset is dropped."
+ *
+ * This restriction is only listed in the Haswell PRM but emperical
+ * testing indicates that it applies on all older generations and is
+ * lifted on Broadwell.
+ *
+ * Since the indirect may cause us to cross a register boundary, this
+ * makes the base offset almost useless. We could try and do
+ * something clever where we use a actual base offset if
+ * base_offset % 32 == 0 but that would mean we were generating
+ * different code depending on the base offset. Instead, for the
+ * sake of consistency, we'll just do the add ourselves.
+ */
+ brw_ADD(p, addr, indirect_byte_offset, brw_imm_uw(imm_byte_offset));
+ ind_src = brw_VxH_indirect(0, 0);
+ } else {
+ brw_MOV(p, addr, indirect_byte_offset);
+ ind_src = brw_VxH_indirect(0, imm_byte_offset);
+ }
+
+ brw_inst *mov = brw_MOV(p, dst, retype(ind_src, dst.type));
+
+ if (devinfo->gen == 6 && dst.file == BRW_MESSAGE_REGISTER_FILE &&
+ !inst->get_next()->is_tail_sentinel() &&
+ ((fs_inst *)inst->get_next())->mlen > 0) {
+ /* From the Sandybridge PRM:
+ *
+ * "[Errata: DevSNB(SNB)] If MRF register is updated by any
+ * instruction that “indexed/indirect” source AND is followed by a
+ * send, the instruction requires a “Switch”. This is to avoid
+ * race condition where send may dispatch before MRF is updated."
+ */
+ brw_inst_set_thread_control(devinfo, mov, BRW_THREAD_SWITCH);
+ }
+ }
+}
+
+void
+fs_generator::generate_urb_read(fs_inst *inst,
+ struct brw_reg dst,
+ struct brw_reg header)
+{
+ assert(header.file == BRW_GENERAL_REGISTER_FILE);
+ assert(header.type == BRW_REGISTER_TYPE_UD);
+
+ brw_inst *send = brw_next_insn(p, BRW_OPCODE_SEND);
+ brw_set_dest(p, send, retype(dst, BRW_REGISTER_TYPE_UD));
+ brw_set_src0(p, send, header);
+ brw_set_src1(p, send, brw_imm_ud(0u));
+
+ brw_inst_set_sfid(p->devinfo, send, BRW_SFID_URB);
+ brw_inst_set_urb_opcode(p->devinfo, send, GEN8_URB_OPCODE_SIMD8_READ);
+
+ if (inst->opcode == SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT)
+ brw_inst_set_urb_per_slot_offset(p->devinfo, send, true);
+
+ brw_inst_set_mlen(p->devinfo, send, inst->mlen);
+ brw_inst_set_rlen(p->devinfo, send, inst->regs_written);
+ brw_inst_set_header_present(p->devinfo, send, true);
+ brw_inst_set_urb_global_offset(p->devinfo, send, inst->offset);
+}
+
void
fs_generator::generate_urb_write(fs_inst *inst, struct brw_reg payload)
{
brw_set_src0(p, insn, payload);
brw_set_src1(p, insn, brw_imm_d(0));
- brw_inst_set_sfid(brw, insn, BRW_SFID_URB);
- brw_inst_set_urb_opcode(brw, insn, GEN8_URB_OPCODE_SIMD8_WRITE);
+ brw_inst_set_sfid(p->devinfo, insn, BRW_SFID_URB);
+ brw_inst_set_urb_opcode(p->devinfo, insn, GEN8_URB_OPCODE_SIMD8_WRITE);
- brw_inst_set_mlen(brw, insn, inst->mlen);
- brw_inst_set_rlen(brw, insn, 0);
- brw_inst_set_eot(brw, insn, inst->eot);
- brw_inst_set_header_present(brw, insn, true);
- brw_inst_set_urb_global_offset(brw, insn, inst->offset);
-}
+ if (inst->opcode == SHADER_OPCODE_URB_WRITE_SIMD8_PER_SLOT ||
+ inst->opcode == SHADER_OPCODE_URB_WRITE_SIMD8_MASKED_PER_SLOT)
+ brw_inst_set_urb_per_slot_offset(p->devinfo, insn, true);
-void
-fs_generator::generate_blorp_fb_write(fs_inst *inst)
-{
- brw_fb_WRITE(p,
- 16 /* dispatch_width */,
- brw_message_reg(inst->base_mrf),
- brw_reg_from_fs_reg(&inst->src[0]),
- BRW_DATAPORT_RENDER_TARGET_WRITE_SIMD16_SINGLE_SOURCE,
- inst->target,
- inst->mlen,
- 0,
- true,
- true,
- inst->header_present);
+ if (inst->opcode == SHADER_OPCODE_URB_WRITE_SIMD8_MASKED ||
+ inst->opcode == SHADER_OPCODE_URB_WRITE_SIMD8_MASKED_PER_SLOT)
+ brw_inst_set_urb_channel_mask_present(p->devinfo, insn, true);
+
+ brw_inst_set_mlen(p->devinfo, insn, inst->mlen);
+ brw_inst_set_rlen(p->devinfo, insn, 0);
+ brw_inst_set_eot(p->devinfo, insn, inst->eot);
+ brw_inst_set_header_present(p->devinfo, insn, true);
+ brw_inst_set_urb_global_offset(p->devinfo, insn, inst->offset);
}
-/* Computes the integer pixel x,y values from the origin.
- *
- * This is the basis of gl_FragCoord computation, but is also used
- * pre-gen6 for computing the deltas from v0 for computing
- * interpolation.
- */
void
-fs_generator::generate_pixel_xy(struct brw_reg dst, bool is_x)
+fs_generator::generate_cs_terminate(fs_inst *inst, struct brw_reg payload)
{
- struct brw_reg g1_uw = retype(brw_vec1_grf(1, 0), BRW_REGISTER_TYPE_UW);
- struct brw_reg src;
- struct brw_reg deltas;
+ struct brw_inst *insn;
- if (is_x) {
- src = stride(suboffset(g1_uw, 4), 2, 4, 0);
- deltas = brw_imm_v(0x10101010);
- } else {
- src = stride(suboffset(g1_uw, 5), 2, 4, 0);
- deltas = brw_imm_v(0x11001100);
- }
+ insn = brw_next_insn(p, BRW_OPCODE_SEND);
- if (dispatch_width == 16) {
- dst = vec16(dst);
- }
+ brw_set_dest(p, insn, retype(brw_null_reg(), BRW_REGISTER_TYPE_UW));
+ brw_set_src0(p, insn, payload);
+ brw_set_src1(p, insn, brw_imm_d(0));
- /* We do this SIMD8 or SIMD16, but since the destination is UW we
- * don't do compression in the SIMD16 case.
+ /* Terminate a compute shader by sending a message to the thread spawner.
*/
- brw_push_insn_state(p);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_ADD(p, dst, src, deltas);
- brw_pop_insn_state(p);
+ brw_inst_set_sfid(devinfo, insn, BRW_SFID_THREAD_SPAWNER);
+ brw_inst_set_mlen(devinfo, insn, 1);
+ brw_inst_set_rlen(devinfo, insn, 0);
+ brw_inst_set_eot(devinfo, insn, inst->eot);
+ brw_inst_set_header_present(devinfo, insn, false);
+
+ brw_inst_set_ts_opcode(devinfo, insn, 0); /* Dereference resource */
+ brw_inst_set_ts_request_type(devinfo, insn, 0); /* Root thread */
+
+ /* Note that even though the thread has a URB resource associated with it,
+ * we set the "do not dereference URB" bit, because the URB resource is
+ * managed by the fixed-function unit, so it will free it automatically.
+ */
+ brw_inst_set_ts_resource_select(devinfo, insn, 1); /* Do not dereference URB */
+
+ brw_inst_set_mask_control(devinfo, insn, BRW_MASK_DISABLE);
+}
+
+void
+fs_generator::generate_barrier(fs_inst *inst, struct brw_reg src)
+{
+ brw_barrier(p, src);
+ brw_WAIT(p);
}
void
fs_generator::generate_linterp(fs_inst *inst,
struct brw_reg dst, struct brw_reg *src)
{
+ /* PLN reads:
+ * / in SIMD16 \
+ * -----------------------------------
+ * | src1+0 | src1+1 | src1+2 | src1+3 |
+ * |-----------------------------------|
+ * |(x0, x1)|(y0, y1)|(x2, x3)|(y2, y3)|
+ * -----------------------------------
+ *
+ * but for the LINE/MAC pair, the LINE reads Xs and the MAC reads Ys:
+ *
+ * -----------------------------------
+ * | src1+0 | src1+1 | src1+2 | src1+3 |
+ * |-----------------------------------|
+ * |(x0, x1)|(y0, y1)| | | in SIMD8
+ * |-----------------------------------|
+ * |(x0, x1)|(x2, x3)|(y0, y1)|(y2, y3)| in SIMD16
+ * -----------------------------------
+ *
+ * See also: emit_interpolation_setup_gen4().
+ */
struct brw_reg delta_x = src[0];
- struct brw_reg delta_y = src[1];
- struct brw_reg interp = src[2];
+ struct brw_reg delta_y = offset(src[0], inst->exec_size / 8);
+ struct brw_reg interp = src[1];
- if (brw->has_pln &&
- delta_y.nr == delta_x.nr + 1 &&
- (brw->gen >= 7 || (delta_x.nr & 1) == 0)) {
+ if (devinfo->has_pln &&
+ (devinfo->gen >= 7 || (delta_x.nr & 1) == 0)) {
brw_PLN(p, dst, interp, delta_x);
} else {
brw_LINE(p, brw_null_reg(), interp, delta_x);
}
void
-fs_generator::generate_math_gen6(fs_inst *inst,
- struct brw_reg dst,
- struct brw_reg src0,
- struct brw_reg src1)
+fs_generator::generate_get_buffer_size(fs_inst *inst,
+ struct brw_reg dst,
+ struct brw_reg src,
+ struct brw_reg surf_index)
{
- int op = brw_math_function(inst->opcode);
- bool binop = src1.file != BRW_ARCHITECTURE_REGISTER_FILE;
+ assert(devinfo->gen >= 7);
+ assert(surf_index.file == BRW_IMMEDIATE_VALUE);
- if (dispatch_width == 8) {
- gen6_math(p, dst, op, src0, src1);
- } else if (dispatch_width == 16) {
- brw_push_insn_state(p);
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- gen6_math(p, firsthalf(dst), op, firsthalf(src0), firsthalf(src1));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- gen6_math(p, sechalf(dst), op, sechalf(src0),
- binop ? sechalf(src1) : brw_null_reg());
- brw_pop_insn_state(p);
- }
-}
-
-void
-fs_generator::generate_math_gen4(fs_inst *inst,
- struct brw_reg dst,
- struct brw_reg src)
-{
- int op = brw_math_function(inst->opcode);
-
- assert(inst->mlen >= 1);
-
- if (dispatch_width == 8) {
- gen4_math(p, dst,
- op,
- inst->base_mrf, src,
- BRW_MATH_PRECISION_FULL);
- } else if (dispatch_width == 16) {
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- gen4_math(p, firsthalf(dst),
- op,
- inst->base_mrf, firsthalf(src),
- BRW_MATH_PRECISION_FULL);
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- gen4_math(p, sechalf(dst),
- op,
- inst->base_mrf + 1, sechalf(src),
- BRW_MATH_PRECISION_FULL);
+ uint32_t simd_mode;
+ int rlen = 4;
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
+ switch (inst->exec_size) {
+ case 8:
+ simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD8;
+ break;
+ case 16:
+ simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
+ break;
+ default:
+ unreachable("Invalid width for texture instruction");
}
-}
-void
-fs_generator::generate_math_g45(fs_inst *inst,
- struct brw_reg dst,
- struct brw_reg src)
-{
- if (inst->opcode == SHADER_OPCODE_POW ||
- inst->opcode == SHADER_OPCODE_INT_QUOTIENT ||
- inst->opcode == SHADER_OPCODE_INT_REMAINDER) {
- generate_math_gen4(inst, dst, src);
- return;
+ if (simd_mode == BRW_SAMPLER_SIMD_MODE_SIMD16) {
+ rlen = 8;
+ dst = vec16(dst);
}
- int op = brw_math_function(inst->opcode);
-
- assert(inst->mlen >= 1);
-
- gen4_math(p, dst,
- op,
- inst->base_mrf, src,
- BRW_MATH_PRECISION_FULL);
+ brw_SAMPLE(p,
+ retype(dst, BRW_REGISTER_TYPE_UW),
+ inst->base_mrf,
+ src,
+ surf_index.ud,
+ 0,
+ GEN5_SAMPLER_MESSAGE_SAMPLE_RESINFO,
+ rlen, /* response length */
+ inst->mlen,
+ inst->header_size > 0,
+ simd_mode,
+ BRW_SAMPLER_RETURN_FORMAT_SINT32);
+
+ brw_mark_surface_used(prog_data, surf_index.ud);
}
void
fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src,
+ struct brw_reg surface_index,
struct brw_reg sampler_index)
{
int msg_type = -1;
- int rlen = 4;
uint32_t simd_mode;
uint32_t return_format;
bool is_combined_send = inst->eot;
break;
}
+ /* Stomp the resinfo output type to UINT32. On gens 4-5, the output type
+ * is set as part of the message descriptor. On gen4, the PRM seems to
+ * allow UINT32 and FLOAT32 (i965 PRM, Vol. 4 Section 4.8.1.1), but on
+ * later gens UINT32 is required. Once you hit Sandy Bridge, the bit is
+ * gone from the message descriptor entirely and you just get UINT32 all
+ * the time regasrdless. Since we can really only do non-UINT32 on gen4,
+ * just stomp it to UINT32 all the time.
+ */
+ if (inst->opcode == SHADER_OPCODE_TXS)
+ return_format = BRW_SAMPLER_RETURN_FORMAT_UINT32;
+
switch (inst->exec_size) {
case 8:
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD8;
unreachable("Invalid width for texture instruction");
}
- if (brw->gen >= 5) {
+ if (devinfo->gen >= 5) {
switch (inst->opcode) {
case SHADER_OPCODE_TEX:
if (inst->shadow_compare) {
msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LOD;
}
break;
+ case SHADER_OPCODE_TXL_LZ:
+ assert(devinfo->gen >= 9);
+ if (inst->shadow_compare) {
+ msg_type = GEN9_SAMPLER_MESSAGE_SAMPLE_C_LZ;
+ } else {
+ msg_type = GEN9_SAMPLER_MESSAGE_SAMPLE_LZ;
+ }
+ break;
case SHADER_OPCODE_TXS:
msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_RESINFO;
break;
case SHADER_OPCODE_TXD:
if (inst->shadow_compare) {
/* Gen7.5+. Otherwise, lowered by brw_lower_texture_gradients(). */
- assert(brw->gen >= 8 || brw->is_haswell);
+ assert(devinfo->gen >= 8 || devinfo->is_haswell);
msg_type = HSW_SAMPLER_MESSAGE_SAMPLE_DERIV_COMPARE;
} else {
msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS;
case SHADER_OPCODE_TXF:
msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD;
break;
+ case SHADER_OPCODE_TXF_LZ:
+ assert(devinfo->gen >= 9);
+ msg_type = GEN9_SAMPLER_MESSAGE_SAMPLE_LD_LZ;
+ break;
+ case SHADER_OPCODE_TXF_CMS_W:
+ assert(devinfo->gen >= 9);
+ msg_type = GEN9_SAMPLER_MESSAGE_SAMPLE_LD2DMS_W;
+ break;
case SHADER_OPCODE_TXF_CMS:
- if (brw->gen >= 7)
+ if (devinfo->gen >= 7)
msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DMS;
else
msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD;
break;
case SHADER_OPCODE_TXF_UMS:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DSS;
break;
case SHADER_OPCODE_TXF_MCS:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_LD_MCS;
break;
case SHADER_OPCODE_LOD:
break;
case SHADER_OPCODE_TG4:
if (inst->shadow_compare) {
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_C;
} else {
- assert(brw->gen >= 6);
+ assert(devinfo->gen >= 6);
msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4;
}
break;
case SHADER_OPCODE_TG4_OFFSET:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
if (inst->shadow_compare) {
msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_PO_C;
} else {
msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_PO;
}
break;
+ case SHADER_OPCODE_SAMPLEINFO:
+ msg_type = GEN6_SAMPLER_MESSAGE_SAMPLE_SAMPLEINFO;
+ break;
default:
unreachable("not reached");
}
/* Note that G45 and older determines shadow compare and dispatch width
* from message length for most messages.
*/
- if (dispatch_width == 8) {
+ if (inst->exec_size == 8) {
msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE;
if (inst->shadow_compare) {
assert(inst->mlen == 6);
break;
case FS_OPCODE_TXB:
if (inst->shadow_compare) {
- assert(dispatch_width == 8);
+ assert(inst->exec_size == 8);
assert(inst->mlen == 6);
msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_BIAS_COMPARE;
} else {
break;
case SHADER_OPCODE_TXL:
if (inst->shadow_compare) {
- assert(dispatch_width == 8);
+ assert(inst->exec_size == 8);
assert(inst->mlen == 6);
msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_LOD_COMPARE;
} else {
break;
case SHADER_OPCODE_TXD:
/* There is no sample_d_c message; comparisons are done manually */
- assert(dispatch_width == 8);
+ assert(inst->exec_size == 8);
assert(inst->mlen == 7 || inst->mlen == 10);
msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_GRADIENTS;
break;
assert(msg_type != -1);
if (simd_mode == BRW_SAMPLER_SIMD_MODE_SIMD16) {
- rlen = 8;
dst = vec16(dst);
}
- if (is_combined_send) {
- assert(brw->gen >= 9 || brw->is_cherryview);
- rlen = 0;
- }
-
- assert(brw->gen < 7 || !inst->header_present ||
+ assert(devinfo->gen < 7 || inst->header_size == 0 ||
src.file == BRW_GENERAL_REGISTER_FILE);
assert(sampler_index.type == BRW_REGISTER_TYPE_UD);
* we need to set it up explicitly and load the offset bitfield.
* Otherwise, we can use an implied move from g0 to the first message reg.
*/
- if (inst->header_present) {
- if (brw->gen < 6 && !inst->offset) {
+ if (inst->header_size != 0) {
+ if (devinfo->gen < 6 && !inst->offset) {
/* Set up an implied move from g0 to the MRF. */
src = retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW);
} else {
struct brw_reg header_reg;
- if (brw->gen >= 7) {
+ if (devinfo->gen >= 7) {
header_reg = src;
} else {
assert(inst->base_mrf != -1);
/* Set the offset bits in DWord 2. */
brw_MOV(p, get_element_ud(header_reg, 2),
brw_imm_ud(inst->offset));
+ } else if (stage != MESA_SHADER_VERTEX &&
+ stage != MESA_SHADER_FRAGMENT) {
+ /* The vertex and fragment stages have g0.2 set to 0, so
+ * header0.2 is 0 when g0 is copied. Other stages may not, so we
+ * must set it to 0 to avoid setting undesirable bits in the
+ * message.
+ */
+ brw_MOV(p, get_element_ud(header_reg, 2), brw_imm_ud(0));
}
brw_adjust_sampler_state_pointer(p, header_reg, sampler_index);
? prog_data->binding_table.gather_texture_start
: prog_data->binding_table.texture_start;
- if (sampler_index.file == BRW_IMMEDIATE_VALUE) {
- uint32_t sampler = sampler_index.dw1.ud;
+ if (surface_index.file == BRW_IMMEDIATE_VALUE &&
+ sampler_index.file == BRW_IMMEDIATE_VALUE) {
+ uint32_t surface = surface_index.ud;
+ uint32_t sampler = sampler_index.ud;
brw_SAMPLE(p,
retype(dst, BRW_REGISTER_TYPE_UW),
inst->base_mrf,
src,
- sampler + base_binding_table_index,
+ surface + base_binding_table_index,
sampler % 16,
msg_type,
- rlen,
+ inst->regs_written,
inst->mlen,
- inst->header_present,
+ inst->header_size != 0,
simd_mode,
return_format);
- brw_mark_surface_used(prog_data, sampler + base_binding_table_index);
+ brw_mark_surface_used(prog_data, surface + base_binding_table_index);
} else {
/* Non-const sampler index */
- /* Note: this clobbers `dst` as a temporary before emitting the send */
struct brw_reg addr = vec1(retype(brw_address_reg(0), BRW_REGISTER_TYPE_UD));
- struct brw_reg temp = vec1(retype(dst, BRW_REGISTER_TYPE_UD));
-
+ struct brw_reg surface_reg = vec1(retype(surface_index, BRW_REGISTER_TYPE_UD));
struct brw_reg sampler_reg = vec1(retype(sampler_index, BRW_REGISTER_TYPE_UD));
brw_push_insn_state(p);
brw_set_default_mask_control(p, BRW_MASK_DISABLE);
brw_set_default_access_mode(p, BRW_ALIGN_1);
- /* Some care required: `sampler` and `temp` may alias:
- * addr = sampler & 0xff
- * temp = (sampler << 8) & 0xf00
- * addr = addr | temp
- */
- brw_ADD(p, addr, sampler_reg, brw_imm_ud(base_binding_table_index));
- brw_SHL(p, temp, sampler_reg, brw_imm_ud(8u));
- brw_AND(p, temp, temp, brw_imm_ud(0x0f00));
- brw_AND(p, addr, addr, brw_imm_ud(0x0ff));
- brw_OR(p, addr, addr, temp);
+ if (brw_regs_equal(&surface_reg, &sampler_reg)) {
+ brw_MUL(p, addr, sampler_reg, brw_imm_uw(0x101));
+ } else {
+ brw_SHL(p, addr, sampler_reg, brw_imm_ud(8));
+ brw_OR(p, addr, addr, surface_reg);
+ }
+ if (base_binding_table_index)
+ brw_ADD(p, addr, addr, brw_imm_ud(base_binding_table_index));
+ brw_AND(p, addr, addr, brw_imm_ud(0xfff));
brw_pop_insn_state(p);
0 /* surface */,
0 /* sampler */,
msg_type,
- rlen,
+ inst->regs_written,
inst->mlen /* mlen */,
- inst->header_present /* header */,
+ inst->header_size != 0 /* header */,
simd_mode,
return_format);
}
if (is_combined_send) {
- brw_inst_set_eot(brw, brw_last_inst, true);
- brw_inst_set_opcode(brw, brw_last_inst, BRW_OPCODE_SENDC);
+ brw_inst_set_eot(p->devinfo, brw_last_inst, true);
+ brw_inst_set_opcode(p->devinfo, brw_last_inst, BRW_OPCODE_SENDC);
}
}
*/
void
fs_generator::generate_ddy(enum opcode opcode,
- struct brw_reg dst, struct brw_reg src,
- bool negate_value)
+ struct brw_reg dst, struct brw_reg src)
{
if (opcode == FS_OPCODE_DDY_FINE) {
- /* From the Ivy Bridge PRM, volume 4 part 3, section 3.3.9 (Register
- * Region Restrictions):
- *
- * In Align16 access mode, SIMD16 is not allowed for DW operations
- * and SIMD8 is not allowed for DF operations.
- *
- * In this context, "DW operations" means "operations acting on 32-bit
- * values", so it includes operations on floats.
- *
- * Gen4 has a similar restriction. From the i965 PRM, section 11.5.3
- * (Instruction Compression -> Rules and Restrictions):
- *
- * A compressed instruction must be in Align1 access mode. Align16
- * mode instructions cannot be compressed.
- *
- * Similar text exists in the g45 PRM.
- *
- * On these platforms, if we're building a SIMD16 shader, we need to
- * manually unroll to a pair of SIMD8 instructions.
- */
- bool unroll_to_simd8 =
- (dispatch_width == 16 &&
- (brw->gen == 4 || (brw->gen == 7 && !brw->is_haswell)));
-
/* produce accurate derivatives */
struct brw_reg src0 = brw_reg(src.file, src.nr, 0,
src.negate, src.abs,
BRW_SWIZZLE_ZWZW, WRITEMASK_XYZW);
brw_push_insn_state(p);
brw_set_default_access_mode(p, BRW_ALIGN_16);
- if (unroll_to_simd8) {
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- if (negate_value) {
- brw_ADD(p, firsthalf(dst), firsthalf(src1), negate(firsthalf(src0)));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- brw_ADD(p, sechalf(dst), sechalf(src1), negate(sechalf(src0)));
- } else {
- brw_ADD(p, firsthalf(dst), firsthalf(src0), negate(firsthalf(src1)));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- brw_ADD(p, sechalf(dst), sechalf(src0), negate(sechalf(src1)));
- }
- } else {
- if (negate_value)
- brw_ADD(p, dst, src1, negate(src0));
- else
- brw_ADD(p, dst, src0, negate(src1));
- }
+ brw_ADD(p, dst, negate(src0), src1);
brw_pop_insn_state(p);
} else {
/* replicate the derivative at the top-left pixel to other pixels */
BRW_WIDTH_4,
BRW_HORIZONTAL_STRIDE_0,
BRW_SWIZZLE_XYZW, WRITEMASK_XYZW);
- if (negate_value)
- brw_ADD(p, dst, src1, negate(src0));
- else
- brw_ADD(p, dst, src0, negate(src1));
+ brw_ADD(p, dst, negate(src0), src1);
}
}
void
fs_generator::generate_discard_jump(fs_inst *inst)
{
- assert(brw->gen >= 6);
+ assert(devinfo->gen >= 6);
/* This HALT will be patched up at FB write time to point UIP at the end of
* the program, and at brw_uip_jip() JIP will be set to the end of the
* current block (or the program).
*/
this->discard_halt_patches.push_tail(new(mem_ctx) ip_record(p->nr_insn));
-
- brw_push_insn_state(p);
- brw_set_default_mask_control(p, BRW_MASK_DISABLE);
gen6_HALT(p);
- brw_pop_insn_state(p);
}
void
fs_generator::generate_scratch_write(fs_inst *inst, struct brw_reg src)
{
+ /* The 32-wide messages only respect the first 16-wide half of the channel
+ * enable signals which are replicated identically for the second group of
+ * 16 channels, so we cannot use them unless the write is marked
+ * force_writemask_all.
+ */
+ const unsigned lower_size = inst->force_writemask_all ? inst->exec_size :
+ MIN2(16, inst->exec_size);
+ const unsigned block_size = 4 * lower_size / REG_SIZE;
assert(inst->mlen != 0);
- brw_MOV(p,
- brw_uvec_mrf(inst->exec_size, (inst->base_mrf + 1), 0),
- retype(src, BRW_REGISTER_TYPE_UD));
- brw_oword_block_write_scratch(p, brw_message_reg(inst->base_mrf),
- inst->exec_size / 8, inst->offset);
+ brw_push_insn_state(p);
+ brw_set_default_exec_size(p, cvt(lower_size) - 1);
+ brw_set_default_compression(p, lower_size > 8);
+
+ for (unsigned i = 0; i < inst->exec_size / lower_size; i++) {
+ brw_set_default_group(p, inst->group + lower_size * i);
+
+ brw_MOV(p, brw_uvec_mrf(lower_size, inst->base_mrf + 1, 0),
+ retype(offset(src, block_size * i), BRW_REGISTER_TYPE_UD));
+
+ brw_oword_block_write_scratch(p, brw_message_reg(inst->base_mrf),
+ block_size,
+ inst->offset + block_size * REG_SIZE * i);
+ }
+
+ brw_pop_insn_state(p);
}
void
fs_generator::generate_scratch_read(fs_inst *inst, struct brw_reg dst)
{
+ assert(inst->exec_size <= 16 || inst->force_writemask_all);
assert(inst->mlen != 0);
brw_oword_block_read_scratch(p, dst, brw_message_reg(inst->base_mrf),
void
fs_generator::generate_scratch_read_gen7(fs_inst *inst, struct brw_reg dst)
{
+ assert(inst->exec_size <= 16 || inst->force_writemask_all);
+
gen7_block_read_scratch(p, dst, inst->exec_size / 8, inst->offset);
}
assert(index.file == BRW_IMMEDIATE_VALUE &&
index.type == BRW_REGISTER_TYPE_UD);
- uint32_t surf_index = index.dw1.ud;
+ uint32_t surf_index = index.ud;
assert(offset.file == BRW_IMMEDIATE_VALUE &&
offset.type == BRW_REGISTER_TYPE_UD);
- uint32_t read_offset = offset.dw1.ud;
+ uint32_t read_offset = offset.ud;
brw_oword_block_read(p, dst, brw_message_reg(inst->base_mrf),
read_offset, surf_index);
-
- brw_mark_surface_used(prog_data, surf_index);
}
void
struct brw_reg index,
struct brw_reg offset)
{
- assert(inst->mlen == 0);
assert(index.type == BRW_REGISTER_TYPE_UD);
assert(offset.file == BRW_GENERAL_REGISTER_FILE);
struct brw_reg src = offset;
bool header_present = false;
- int mlen = 1;
- if (brw->gen >= 9) {
+ if (devinfo->gen >= 9) {
/* Skylake requires a message header in order to use SIMD4x2 mode. */
- src = retype(brw_vec4_grf(offset.nr - 1, 0), BRW_REGISTER_TYPE_UD);
- mlen = 2;
+ src = retype(brw_vec4_grf(offset.nr, 0), BRW_REGISTER_TYPE_UD);
header_present = true;
brw_push_insn_state(p);
brw_set_default_mask_control(p, BRW_MASK_DISABLE);
+ brw_set_default_exec_size(p, BRW_EXECUTE_8);
brw_MOV(p, vec8(src), retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD));
brw_set_default_access_mode(p, BRW_ALIGN_1);
if (index.file == BRW_IMMEDIATE_VALUE) {
- uint32_t surf_index = index.dw1.ud;
+ uint32_t surf_index = index.ud;
brw_push_insn_state(p);
brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
brw_set_default_mask_control(p, BRW_MASK_DISABLE);
brw_inst *send = brw_next_insn(p, BRW_OPCODE_SEND);
+ brw_inst_set_exec_size(devinfo, send, BRW_EXECUTE_4);
brw_pop_insn_state(p);
- brw_set_dest(p, send, dst);
+ brw_set_dest(p, send, retype(dst, BRW_REGISTER_TYPE_UD));
brw_set_src0(p, send, src);
brw_set_sampler_message(p, send,
surf_index,
0, /* LD message ignores sampler unit */
GEN5_SAMPLER_MESSAGE_SAMPLE_LD,
1, /* rlen */
- mlen,
+ inst->mlen,
header_present,
BRW_SAMPLER_SIMD_MODE_SIMD4X2,
0);
-
- brw_mark_surface_used(prog_data, surf_index);
-
} else {
struct brw_reg addr = vec1(retype(brw_address_reg(0), BRW_REGISTER_TYPE_UD));
/* a0.0 = surf_index & 0xff */
brw_inst *insn_and = brw_next_insn(p, BRW_OPCODE_AND);
- brw_inst_set_exec_size(p->brw, insn_and, BRW_EXECUTE_1);
+ brw_inst_set_exec_size(p->devinfo, insn_and, BRW_EXECUTE_1);
brw_set_dest(p, insn_and, addr);
brw_set_src0(p, insn_and, vec1(retype(index, BRW_REGISTER_TYPE_UD)));
brw_set_src1(p, insn_and, brw_imm_ud(0x0ff));
0, /* LD message ignores sampler unit */
GEN5_SAMPLER_MESSAGE_SAMPLE_LD,
1, /* rlen */
- mlen,
+ inst->mlen,
header_present,
BRW_SAMPLER_SIMD_MODE_SIMD4X2,
0);
brw_pop_insn_state(p);
-
- /* visitor knows more than we do about the surface limit required,
- * so has already done marking.
- */
-
}
}
void
-fs_generator::generate_varying_pull_constant_load(fs_inst *inst,
- struct brw_reg dst,
- struct brw_reg index,
- struct brw_reg offset)
+fs_generator::generate_varying_pull_constant_load_gen4(fs_inst *inst,
+ struct brw_reg dst,
+ struct brw_reg index)
{
- assert(brw->gen < 7); /* Should use the gen7 variant. */
- assert(inst->header_present);
+ assert(devinfo->gen < 7); /* Should use the gen7 variant. */
+ assert(inst->header_size != 0);
assert(inst->mlen);
assert(index.file == BRW_IMMEDIATE_VALUE &&
index.type == BRW_REGISTER_TYPE_UD);
- uint32_t surf_index = index.dw1.ud;
+ uint32_t surf_index = index.ud;
uint32_t simd_mode, rlen, msg_type;
- if (dispatch_width == 16) {
+ if (inst->exec_size == 16) {
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
rlen = 8;
} else {
+ assert(inst->exec_size == 8);
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD8;
rlen = 4;
}
- if (brw->gen >= 5)
+ if (devinfo->gen >= 5)
msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD;
else {
/* We always use the SIMD16 message so that we only have to load U, and
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
}
- struct brw_reg offset_mrf = retype(brw_message_reg(inst->base_mrf + 1),
- BRW_REGISTER_TYPE_D);
- brw_MOV(p, offset_mrf, offset);
-
struct brw_reg header = brw_vec8_grf(0, 0);
gen6_resolve_implied_move(p, &header, inst->base_mrf);
brw_inst *send = brw_next_insn(p, BRW_OPCODE_SEND);
- brw_inst_set_qtr_control(brw, send, BRW_COMPRESSION_NONE);
+ brw_inst_set_compression(devinfo, send, false);
brw_set_dest(p, send, retype(dst, BRW_REGISTER_TYPE_UW));
brw_set_src0(p, send, header);
- if (brw->gen < 6)
- brw_inst_set_base_mrf(brw, send, inst->base_mrf);
+ if (devinfo->gen < 6)
+ brw_inst_set_base_mrf(p->devinfo, send, inst->base_mrf);
/* Our surface is set up as floats, regardless of what actual data is
* stored in it.
msg_type,
rlen,
inst->mlen,
- inst->header_present,
+ inst->header_size != 0,
simd_mode,
return_format);
-
- brw_mark_surface_used(prog_data, surf_index);
}
void
struct brw_reg index,
struct brw_reg offset)
{
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
/* Varying-offset pull constant loads are treated as a normal expression on
* gen7, so the fact that it's a send message is hidden at the IR level.
*/
- assert(!inst->header_present);
+ assert(inst->header_size == 0);
assert(!inst->mlen);
assert(index.type == BRW_REGISTER_TYPE_UD);
uint32_t simd_mode, rlen, mlen;
- if (dispatch_width == 16) {
+ if (inst->exec_size == 16) {
mlen = 2;
rlen = 8;
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD16;
} else {
+ assert(inst->exec_size == 8);
mlen = 1;
rlen = 4;
simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD8;
if (index.file == BRW_IMMEDIATE_VALUE) {
- uint32_t surf_index = index.dw1.ud;
+ uint32_t surf_index = index.ud;
brw_inst *send = brw_next_insn(p, BRW_OPCODE_SEND);
brw_set_dest(p, send, retype(dst, BRW_REGISTER_TYPE_UW));
simd_mode,
0);
- brw_mark_surface_used(prog_data, surf_index);
-
} else {
struct brw_reg addr = vec1(retype(brw_address_reg(0), BRW_REGISTER_TYPE_UD));
/* a0.0 = surf_index & 0xff */
brw_inst *insn_and = brw_next_insn(p, BRW_OPCODE_AND);
- brw_inst_set_exec_size(p->brw, insn_and, BRW_EXECUTE_1);
+ brw_inst_set_exec_size(p->devinfo, insn_and, BRW_EXECUTE_1);
brw_set_dest(p, insn_and, addr);
brw_set_src0(p, insn_and, vec1(retype(index, BRW_REGISTER_TYPE_UD)));
brw_set_src1(p, insn_and, brw_imm_ud(0x0ff));
false /* header */,
simd_mode,
0);
-
- /* visitor knows more than we do about the surface limit required,
- * so has already done marking.
- */
}
}
struct brw_reg flags = brw_flag_reg(0, inst->flag_subreg);
struct brw_reg dispatch_mask;
- if (brw->gen >= 6)
+ if (devinfo->gen >= 6)
dispatch_mask = retype(brw_vec1_grf(1, 7), BRW_REGISTER_TYPE_UW);
else
dispatch_mask = retype(brw_vec1_grf(0, 0), BRW_REGISTER_TYPE_UW);
struct brw_reg msg_data,
unsigned msg_type)
{
- assert(msg_data.file == BRW_IMMEDIATE_VALUE &&
- msg_data.type == BRW_REGISTER_TYPE_UD);
+ assert(msg_data.type == BRW_REGISTER_TYPE_UD);
brw_pixel_interpolator_query(p,
retype(dst, BRW_REGISTER_TYPE_UW),
src,
inst->pi_noperspective,
msg_type,
- msg_data.dw1.ud,
+ msg_data,
inst->mlen,
inst->regs_written);
}
brw_pop_insn_state(p);
}
-/* Sets vstride=16, width=8, hstride=2 or vstride=0, width=1, hstride=0
- * (when mask is passed as a uniform) of register mask before moving it
- * to register dst.
- */
-void
-fs_generator::generate_set_omask(fs_inst *inst,
- struct brw_reg dst,
- struct brw_reg mask)
-{
- bool stride_8_8_1 =
- (mask.vstride == BRW_VERTICAL_STRIDE_8 &&
- mask.width == BRW_WIDTH_8 &&
- mask.hstride == BRW_HORIZONTAL_STRIDE_1);
-
- bool stride_0_1_0 = has_scalar_region(mask);
-
- assert(stride_8_8_1 || stride_0_1_0);
- assert(dst.type == BRW_REGISTER_TYPE_UW);
-
- brw_push_insn_state(p);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_set_default_mask_control(p, BRW_MASK_DISABLE);
-
- if (stride_8_8_1) {
- brw_MOV(p, dst, retype(stride(mask, 16, 8, 2), dst.type));
- } else if (stride_0_1_0) {
- brw_MOV(p, dst, retype(mask, dst.type));
- }
- brw_pop_insn_state(p);
-}
-
/* Sets vstride=1, width=4, hstride=0 of register src1 during
* the ADD instruction.
*/
assert(src0.type == BRW_REGISTER_TYPE_D ||
src0.type == BRW_REGISTER_TYPE_UD);
- brw_push_insn_state(p);
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_set_default_mask_control(p, BRW_MASK_DISABLE);
- struct brw_reg reg = retype(stride(src1, 1, 4, 0), BRW_REGISTER_TYPE_UW);
- if (dispatch_width == 8) {
+ struct brw_reg reg = stride(src1, 1, 4, 0);
+ if (devinfo->gen >= 8 || inst->exec_size == 8) {
brw_ADD(p, dst, src0, reg);
- } else if (dispatch_width == 16) {
+ } else if (inst->exec_size == 16) {
+ brw_push_insn_state(p);
+ brw_set_default_exec_size(p, BRW_EXECUTE_8);
+ brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
brw_ADD(p, firsthalf(dst), firsthalf(src0), reg);
+ brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
brw_ADD(p, sechalf(dst), sechalf(src0), suboffset(reg, 2));
+ brw_pop_insn_state(p);
}
- brw_pop_insn_state(p);
}
void
struct brw_reg x,
struct brw_reg y)
{
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
assert(dst.type == BRW_REGISTER_TYPE_UD);
assert(x.type == BRW_REGISTER_TYPE_F);
assert(y.type == BRW_REGISTER_TYPE_F);
struct brw_reg dst,
struct brw_reg src)
{
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
assert(dst.type == BRW_REGISTER_TYPE_F);
assert(src.type == BRW_REGISTER_TYPE_UD);
struct brw_reg offset,
struct brw_reg value)
{
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
brw_push_insn_state(p);
brw_set_default_mask_control(p, true);
prog_data->binding_table.shader_time_start);
}
-void
-fs_generator::generate_untyped_atomic(fs_inst *inst, struct brw_reg dst,
- struct brw_reg payload,
- struct brw_reg atomic_op,
- struct brw_reg surf_index)
-{
- assert(atomic_op.file == BRW_IMMEDIATE_VALUE &&
- atomic_op.type == BRW_REGISTER_TYPE_UD &&
- surf_index.file == BRW_IMMEDIATE_VALUE &&
- surf_index.type == BRW_REGISTER_TYPE_UD);
-
- brw_untyped_atomic(p, dst, payload,
- atomic_op.dw1.ud, surf_index.dw1.ud,
- inst->mlen, true);
-
- brw_mark_surface_used(prog_data, surf_index.dw1.ud);
-}
-
-void
-fs_generator::generate_untyped_surface_read(fs_inst *inst, struct brw_reg dst,
- struct brw_reg payload,
- struct brw_reg surf_index)
-{
- assert(surf_index.file == BRW_IMMEDIATE_VALUE &&
- surf_index.type == BRW_REGISTER_TYPE_UD);
-
- brw_untyped_surface_read(p, dst, payload, surf_index.dw1.ud, inst->mlen, 1);
-
- brw_mark_surface_used(prog_data, surf_index.dw1.ud);
-}
-
void
fs_generator::enable_debug(const char *shader_name)
{
this->shader_name = shader_name;
}
-/**
- * Some hardware doesn't support SIMD16 instructions with 3 sources.
- */
-static bool
-brw_supports_simd16_3src(const struct brw_context *brw)
-{
- /* WaDisableSIMD16On3SrcInstr: 3-source instructions don't work in SIMD16
- * on a few steppings of Skylake.
- */
- if (brw->gen == 9)
- return brw->revision != 2 && brw->revision != 3 && brw->revision != -1;
-
- return brw->is_haswell || brw->gen >= 8;
-}
-
int
fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
{
brw_NOP(p);
this->dispatch_width = dispatch_width;
- if (dispatch_width == 16)
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
int start_offset = p->next_insn_offset;
int spill_count = 0, fill_count = 0;
unsigned int last_insn_offset = p->next_insn_offset;
bool multiple_instructions_emitted = false;
+ /* From the Broadwell PRM, Volume 7, "3D-Media-GPGPU", in the
+ * "Register Region Restrictions" section: for BDW, SKL:
+ *
+ * "A POW/FDIV operation must not be followed by an instruction
+ * that requires two destination registers."
+ *
+ * The documentation is often lacking annotations for Atom parts,
+ * and empirically this affects CHV as well.
+ */
+ if (devinfo->gen >= 8 &&
+ p->nr_insn > 1 &&
+ brw_inst_opcode(devinfo, brw_last_inst) == BRW_OPCODE_MATH &&
+ brw_inst_math_function(devinfo, brw_last_inst) == BRW_MATH_FUNCTION_POW &&
+ inst->dst.component_size(inst->exec_size) > REG_SIZE) {
+ brw_NOP(p);
+ last_insn_offset = p->next_insn_offset;
+ }
+
if (unlikely(debug_flag))
- annotate(brw, &annotation, cfg, inst, p->next_insn_offset);
+ annotate(p->devinfo, &annotation, cfg, inst, p->next_insn_offset);
+
+ /* If the instruction writes to more than one register, it needs to be
+ * explicitly marked as compressed on Gen <= 5. On Gen >= 6 the
+ * hardware figures out by itself what the right compression mode is,
+ * but we still need to know whether the instruction is compressed to
+ * set up the source register regions appropriately.
+ *
+ * XXX - This is wrong for instructions that write a single register but
+ * read more than one which should strictly speaking be treated as
+ * compressed. For instructions that don't write any registers it
+ * relies on the destination being a null register of the correct
+ * type and regioning so the instruction is considered compressed
+ * or not accordingly.
+ */
+ const bool compressed =
+ inst->dst.component_size(inst->exec_size) > REG_SIZE;
+ brw_set_default_compression(p, compressed);
+ brw_set_default_group(p, inst->group);
for (unsigned int i = 0; i < inst->sources; i++) {
- src[i] = brw_reg_from_fs_reg(&inst->src[i]);
+ src[i] = brw_reg_from_fs_reg(inst, &inst->src[i], devinfo->gen,
+ compressed);
/* The accumulator result appears to get used for the
* conditional modifier generation. When negating a UD
inst->src[i].type != BRW_REGISTER_TYPE_UD ||
!inst->src[i].negate);
}
- dst = brw_reg_from_fs_reg(&inst->dst);
+ dst = brw_reg_from_fs_reg(inst, &inst->dst, devinfo->gen, compressed);
+ brw_set_default_access_mode(p, BRW_ALIGN_1);
brw_set_default_predicate_control(p, inst->predicate);
brw_set_default_predicate_inverse(p, inst->predicate_inverse);
brw_set_default_flag_reg(p, 0, inst->flag_subreg);
brw_set_default_acc_write_control(p, inst->writes_accumulator);
brw_set_default_exec_size(p, cvt(inst->exec_size) - 1);
- switch (inst->exec_size) {
- case 1:
- case 2:
- case 4:
- assert(inst->force_writemask_all);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- break;
- case 8:
- if (inst->force_sechalf) {
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- } else {
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- }
- break;
- case 16:
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
- break;
- default:
- unreachable("Invalid instruction width");
- }
+ assert(inst->force_writemask_all || inst->exec_size >= 4);
+ assert(inst->force_writemask_all || inst->group % inst->exec_size == 0);
+ assert(inst->base_mrf + inst->mlen <= BRW_MAX_MRF(devinfo->gen));
+ assert(inst->mlen <= BRW_MAX_MSG_LENGTH);
switch (inst->opcode) {
case BRW_OPCODE_MOV:
break;
case BRW_OPCODE_MAD:
- assert(brw->gen >= 6);
+ assert(devinfo->gen >= 6);
brw_set_default_access_mode(p, BRW_ALIGN_16);
- if (dispatch_width == 16 && !brw_supports_simd16_3src(brw)) {
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_inst *f = brw_MAD(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- brw_inst *s = brw_MAD(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]), sechalf(src[2]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
-
- if (inst->conditional_mod) {
- brw_inst_set_cond_modifier(brw, f, inst->conditional_mod);
- brw_inst_set_cond_modifier(brw, s, inst->conditional_mod);
- multiple_instructions_emitted = true;
- }
- } else {
- brw_MAD(p, dst, src[0], src[1], src[2]);
- }
- brw_set_default_access_mode(p, BRW_ALIGN_1);
+ brw_MAD(p, dst, src[0], src[1], src[2]);
break;
case BRW_OPCODE_LRP:
- assert(brw->gen >= 6);
+ assert(devinfo->gen >= 6);
brw_set_default_access_mode(p, BRW_ALIGN_16);
- if (dispatch_width == 16 && !brw_supports_simd16_3src(brw)) {
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_inst *f = brw_LRP(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- brw_inst *s = brw_LRP(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]), sechalf(src[2]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
-
- if (inst->conditional_mod) {
- brw_inst_set_cond_modifier(brw, f, inst->conditional_mod);
- brw_inst_set_cond_modifier(brw, s, inst->conditional_mod);
- multiple_instructions_emitted = true;
- }
- } else {
- brw_LRP(p, dst, src[0], src[1], src[2]);
- }
- brw_set_default_access_mode(p, BRW_ALIGN_1);
+ brw_LRP(p, dst, src[0], src[1], src[2]);
break;
case BRW_OPCODE_FRC:
brw_SHL(p, dst, src[0], src[1]);
break;
case BRW_OPCODE_F32TO16:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
brw_F32TO16(p, dst, src[0]);
break;
case BRW_OPCODE_F16TO32:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
brw_F16TO32(p, dst, src[0]);
break;
case BRW_OPCODE_CMP:
- /* The Ivybridge/BayTrail WaCMPInstFlagDepClearedEarly workaround says
- * that when the destination is a GRF that the dependency-clear bit on
- * the flag register is cleared early.
- *
- * Suggested workarounds are to disable coissuing CMP instructions
- * or to split CMP(16) instructions into two CMP(8) instructions.
- *
- * We choose to split into CMP(8) instructions since disabling
- * coissuing would affect CMP instructions not otherwise affected by
- * the errata.
- */
- if (dispatch_width == 16 && brw->gen == 7 && !brw->is_haswell) {
- if (dst.file == BRW_GENERAL_REGISTER_FILE) {
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_CMP(p, firsthalf(dst), inst->conditional_mod,
- firsthalf(src[0]), firsthalf(src[1]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- brw_CMP(p, sechalf(dst), inst->conditional_mod,
- sechalf(src[0]), sechalf(src[1]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
-
- multiple_instructions_emitted = true;
- } else if (dst.file == BRW_ARCHITECTURE_REGISTER_FILE) {
- /* For unknown reasons, the aforementioned workaround is not
- * sufficient. Overriding the type when the destination is the
- * null register is necessary but not sufficient by itself.
- */
- assert(dst.nr == BRW_ARF_NULL);
- dst.type = BRW_REGISTER_TYPE_D;
- brw_CMP(p, dst, inst->conditional_mod, src[0], src[1]);
- } else {
- unreachable("not reached");
- }
- } else {
- brw_CMP(p, dst, inst->conditional_mod, src[0], src[1]);
+ if (inst->exec_size >= 16 && devinfo->gen == 7 && !devinfo->is_haswell &&
+ dst.file == BRW_ARCHITECTURE_REGISTER_FILE) {
+ /* For unknown reasons the WaCMPInstFlagDepClearedEarly workaround
+ * implemented in the compiler is not sufficient. Overriding the
+ * type when the destination is the null register is necessary but
+ * not sufficient by itself.
+ */
+ assert(dst.nr == BRW_ARF_NULL);
+ dst.type = BRW_REGISTER_TYPE_D;
}
+ brw_CMP(p, dst, inst->conditional_mod, src[0], src[1]);
break;
case BRW_OPCODE_SEL:
brw_SEL(p, dst, src[0], src[1]);
break;
case BRW_OPCODE_BFREV:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
/* BFREV only supports UD type for src and dst. */
brw_BFREV(p, retype(dst, BRW_REGISTER_TYPE_UD),
retype(src[0], BRW_REGISTER_TYPE_UD));
break;
case BRW_OPCODE_FBH:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
/* FBH only supports UD type for dst. */
brw_FBH(p, retype(dst, BRW_REGISTER_TYPE_UD), src[0]);
break;
case BRW_OPCODE_FBL:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
/* FBL only supports UD type for dst. */
brw_FBL(p, retype(dst, BRW_REGISTER_TYPE_UD), src[0]);
break;
+ case BRW_OPCODE_LZD:
+ brw_LZD(p, dst, src[0]);
+ break;
case BRW_OPCODE_CBIT:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
/* CBIT only supports UD type for dst. */
brw_CBIT(p, retype(dst, BRW_REGISTER_TYPE_UD), src[0]);
break;
case BRW_OPCODE_ADDC:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
brw_ADDC(p, dst, src[0], src[1]);
break;
case BRW_OPCODE_SUBB:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
brw_SUBB(p, dst, src[0], src[1]);
break;
case BRW_OPCODE_MAC:
break;
case BRW_OPCODE_BFE:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
brw_set_default_access_mode(p, BRW_ALIGN_16);
- if (dispatch_width == 16 && !brw_supports_simd16_3src(brw)) {
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_BFE(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- brw_BFE(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]), sechalf(src[2]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
- } else {
- brw_BFE(p, dst, src[0], src[1], src[2]);
- }
- brw_set_default_access_mode(p, BRW_ALIGN_1);
+ brw_BFE(p, dst, src[0], src[1], src[2]);
break;
case BRW_OPCODE_BFI1:
- assert(brw->gen >= 7);
- /* The Haswell WaForceSIMD8ForBFIInstruction workaround says that we
- * should
- *
- * "Force BFI instructions to be executed always in SIMD8."
- */
- if (dispatch_width == 16 && brw->is_haswell) {
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_BFI1(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- brw_BFI1(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
- } else {
- brw_BFI1(p, dst, src[0], src[1]);
- }
+ assert(devinfo->gen >= 7);
+ brw_BFI1(p, dst, src[0], src[1]);
break;
case BRW_OPCODE_BFI2:
- assert(brw->gen >= 7);
+ assert(devinfo->gen >= 7);
brw_set_default_access_mode(p, BRW_ALIGN_16);
- /* The Haswell WaForceSIMD8ForBFIInstruction workaround says that we
- * should
- *
- * "Force BFI instructions to be executed always in SIMD8."
- *
- * Otherwise we would be able to emit compressed instructions like we
- * do for the other three-source instructions.
- */
- if (dispatch_width == 16 &&
- (brw->is_haswell || !brw_supports_simd16_3src(brw))) {
- brw_set_default_exec_size(p, BRW_EXECUTE_8);
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
- brw_BFI2(p, firsthalf(dst), firsthalf(src[0]), firsthalf(src[1]), firsthalf(src[2]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
- brw_BFI2(p, sechalf(dst), sechalf(src[0]), sechalf(src[1]), sechalf(src[2]));
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
- } else {
- brw_BFI2(p, dst, src[0], src[1], src[2]);
- }
- brw_set_default_access_mode(p, BRW_ALIGN_1);
+ brw_BFI2(p, dst, src[0], src[1], src[2]);
break;
case BRW_OPCODE_IF:
if (inst->src[0].file != BAD_FILE) {
/* The instruction has an embedded compare (only allowed on gen6) */
- assert(brw->gen == 6);
+ assert(devinfo->gen == 6);
gen6_IF(p, inst->conditional_mod, src[0], src[1]);
} else {
- brw_IF(p, dispatch_width == 16 ? BRW_EXECUTE_16 : BRW_EXECUTE_8);
+ brw_IF(p, brw_inst_exec_size(devinfo, p->current));
}
break;
break;
case BRW_OPCODE_DO:
- brw_DO(p, BRW_EXECUTE_8);
+ brw_DO(p, brw_inst_exec_size(devinfo, p->current));
break;
case BRW_OPCODE_BREAK:
brw_BREAK(p);
- brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
break;
case BRW_OPCODE_CONTINUE:
brw_CONT(p);
- brw_set_default_predicate_control(p, BRW_PREDICATE_NONE);
break;
case BRW_OPCODE_WHILE:
case SHADER_OPCODE_LOG2:
case SHADER_OPCODE_SIN:
case SHADER_OPCODE_COS:
- assert(brw->gen < 6 || inst->mlen == 0);
assert(inst->conditional_mod == BRW_CONDITIONAL_NONE);
- if (brw->gen >= 7) {
- gen6_math(p, dst, brw_math_function(inst->opcode), src[0],
- brw_null_reg());
- } else if (brw->gen == 6) {
- generate_math_gen6(inst, dst, src[0], brw_null_reg());
- } else if (brw->gen == 5 || brw->is_g4x) {
- generate_math_g45(inst, dst, src[0]);
+ if (devinfo->gen >= 6) {
+ assert(inst->mlen == 0);
+ assert(devinfo->gen >= 7 || inst->exec_size == 8);
+ gen6_math(p, dst, brw_math_function(inst->opcode),
+ src[0], brw_null_reg());
} else {
- generate_math_gen4(inst, dst, src[0]);
+ assert(inst->mlen >= 1);
+ assert(devinfo->gen == 5 || devinfo->is_g4x || inst->exec_size == 8);
+ gen4_math(p, dst,
+ brw_math_function(inst->opcode),
+ inst->base_mrf, src[0],
+ BRW_MATH_PRECISION_FULL);
}
break;
case SHADER_OPCODE_INT_QUOTIENT:
case SHADER_OPCODE_INT_REMAINDER:
case SHADER_OPCODE_POW:
- assert(brw->gen < 6 || inst->mlen == 0);
assert(inst->conditional_mod == BRW_CONDITIONAL_NONE);
- if (brw->gen >= 7 && inst->opcode == SHADER_OPCODE_POW) {
+ if (devinfo->gen >= 6) {
+ assert(inst->mlen == 0);
+ assert((devinfo->gen >= 7 && inst->opcode == SHADER_OPCODE_POW) ||
+ inst->exec_size == 8);
gen6_math(p, dst, brw_math_function(inst->opcode), src[0], src[1]);
- } else if (brw->gen >= 6) {
- generate_math_gen6(inst, dst, src[0], src[1]);
- } else {
- generate_math_gen4(inst, dst, src[0]);
+ } else {
+ assert(inst->mlen >= 1);
+ assert(inst->exec_size == 8);
+ gen4_math(p, dst, brw_math_function(inst->opcode),
+ inst->base_mrf, src[0],
+ BRW_MATH_PRECISION_FULL);
}
break;
- case FS_OPCODE_PIXEL_X:
- generate_pixel_xy(dst, true);
- break;
- case FS_OPCODE_PIXEL_Y:
- generate_pixel_xy(dst, false);
- break;
case FS_OPCODE_CINTERP:
brw_MOV(p, dst, src[0]);
break;
case FS_OPCODE_LINTERP:
generate_linterp(inst, dst, src);
break;
+ case FS_OPCODE_PIXEL_X:
+ assert(src[0].type == BRW_REGISTER_TYPE_UW);
+ src[0].subnr = 0 * type_sz(src[0].type);
+ brw_MOV(p, dst, stride(src[0], 8, 4, 1));
+ break;
+ case FS_OPCODE_PIXEL_Y:
+ assert(src[0].type == BRW_REGISTER_TYPE_UW);
+ src[0].subnr = 4 * type_sz(src[0].type);
+ brw_MOV(p, dst, stride(src[0], 8, 4, 1));
+ break;
+ case FS_OPCODE_GET_BUFFER_SIZE:
+ generate_get_buffer_size(inst, dst, src[0], src[1]);
+ break;
case SHADER_OPCODE_TEX:
case FS_OPCODE_TXB:
case SHADER_OPCODE_TXD:
case SHADER_OPCODE_TXF:
+ case SHADER_OPCODE_TXF_LZ:
case SHADER_OPCODE_TXF_CMS:
+ case SHADER_OPCODE_TXF_CMS_W:
case SHADER_OPCODE_TXF_UMS:
case SHADER_OPCODE_TXF_MCS:
case SHADER_OPCODE_TXL:
+ case SHADER_OPCODE_TXL_LZ:
case SHADER_OPCODE_TXS:
case SHADER_OPCODE_LOD:
case SHADER_OPCODE_TG4:
case SHADER_OPCODE_TG4_OFFSET:
- generate_tex(inst, dst, src[0], src[1]);
+ case SHADER_OPCODE_SAMPLEINFO:
+ generate_tex(inst, dst, src[0], src[1], src[2]);
break;
case FS_OPCODE_DDX_COARSE:
case FS_OPCODE_DDX_FINE:
break;
case FS_OPCODE_DDY_COARSE:
case FS_OPCODE_DDY_FINE:
- assert(src[1].file == BRW_IMMEDIATE_VALUE);
- generate_ddy(inst->opcode, dst, src[0], src[1].dw1.ud);
+ generate_ddy(inst->opcode, dst, src[0]);
break;
case SHADER_OPCODE_GEN4_SCRATCH_WRITE:
fill_count++;
break;
+ case SHADER_OPCODE_MOV_INDIRECT:
+ generate_mov_indirect(inst, dst, src[0], src[1]);
+ break;
+
+ case SHADER_OPCODE_URB_READ_SIMD8:
+ case SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT:
+ generate_urb_read(inst, dst, src[0]);
+ break;
+
case SHADER_OPCODE_URB_WRITE_SIMD8:
+ case SHADER_OPCODE_URB_WRITE_SIMD8_PER_SLOT:
+ case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED:
+ case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED_PER_SLOT:
generate_urb_write(inst, src[0]);
break;
case FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD:
+ assert(inst->force_writemask_all);
generate_uniform_pull_constant_load(inst, dst, src[0], src[1]);
break;
case FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD_GEN7:
+ assert(inst->force_writemask_all);
generate_uniform_pull_constant_load_gen7(inst, dst, src[0], src[1]);
break;
- case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD:
- generate_varying_pull_constant_load(inst, dst, src[0], src[1]);
+ case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_GEN4:
+ generate_varying_pull_constant_load_gen4(inst, dst, src[0]);
break;
case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_GEN7:
generate_fb_write(inst, src[0]);
break;
- case FS_OPCODE_BLORP_FB_WRITE:
- generate_blorp_fb_write(inst);
- break;
+ case FS_OPCODE_FB_READ:
+ generate_fb_read(inst, dst, src[0]);
+ break;
case FS_OPCODE_MOV_DISPATCH_TO_FLAGS:
generate_mov_dispatch_to_flags(inst);
break;
case SHADER_OPCODE_UNTYPED_ATOMIC:
- generate_untyped_atomic(inst, dst, src[0], src[1], src[2]);
+ assert(src[2].file == BRW_IMMEDIATE_VALUE);
+ brw_untyped_atomic(p, dst, src[0], src[1], src[2].ud,
+ inst->mlen, !inst->dst.is_null());
break;
case SHADER_OPCODE_UNTYPED_SURFACE_READ:
- generate_untyped_surface_read(inst, dst, src[0], src[1]);
+ assert(src[2].file == BRW_IMMEDIATE_VALUE);
+ brw_untyped_surface_read(p, dst, src[0], src[1],
+ inst->mlen, src[2].ud);
+ break;
+
+ case SHADER_OPCODE_UNTYPED_SURFACE_WRITE:
+ assert(src[2].file == BRW_IMMEDIATE_VALUE);
+ brw_untyped_surface_write(p, src[0], src[1],
+ inst->mlen, src[2].ud);
+ break;
+
+ case SHADER_OPCODE_TYPED_ATOMIC:
+ assert(src[2].file == BRW_IMMEDIATE_VALUE);
+ brw_typed_atomic(p, dst, src[0], src[1],
+ src[2].ud, inst->mlen, !inst->dst.is_null());
+ break;
+
+ case SHADER_OPCODE_TYPED_SURFACE_READ:
+ assert(src[2].file == BRW_IMMEDIATE_VALUE);
+ brw_typed_surface_read(p, dst, src[0], src[1],
+ inst->mlen, src[2].ud);
+ break;
+
+ case SHADER_OPCODE_TYPED_SURFACE_WRITE:
+ assert(src[2].file == BRW_IMMEDIATE_VALUE);
+ brw_typed_surface_write(p, src[0], src[1], inst->mlen, src[2].ud);
+ break;
+
+ case SHADER_OPCODE_MEMORY_FENCE:
+ brw_memory_fence(p, dst);
break;
case FS_OPCODE_SET_SIMD4X2_OFFSET:
generate_set_simd4x2_offset(inst, dst, src[0]);
break;
- case FS_OPCODE_SET_OMASK:
- generate_set_omask(inst, dst, src[0]);
+ case SHADER_OPCODE_FIND_LIVE_CHANNEL:
+ brw_find_live_channel(p, dst);
+ break;
+
+ case SHADER_OPCODE_BROADCAST:
+ assert(inst->force_writemask_all);
+ brw_broadcast(p, dst, src[0], src[1]);
break;
case FS_OPCODE_SET_SAMPLE_ID:
}
break;
- case FS_OPCODE_INTERPOLATE_AT_CENTROID:
- generate_pixel_interpolator_query(inst, dst, src[0], src[1],
- GEN7_PIXEL_INTERPOLATOR_LOC_CENTROID);
- break;
-
case FS_OPCODE_INTERPOLATE_AT_SAMPLE:
generate_pixel_interpolator_query(inst, dst, src[0], src[1],
GEN7_PIXEL_INTERPOLATOR_LOC_SAMPLE);
GEN7_PIXEL_INTERPOLATOR_LOC_PER_SLOT_OFFSET);
break;
+ case CS_OPCODE_CS_TERMINATE:
+ generate_cs_terminate(inst, src[0]);
+ break;
+
+ case SHADER_OPCODE_BARRIER:
+ generate_barrier(inst, src[0]);
+ break;
+
+ case BRW_OPCODE_DIM:
+ assert(devinfo->is_haswell);
+ assert(src[0].type == BRW_REGISTER_TYPE_DF);
+ assert(dst.type == BRW_REGISTER_TYPE_DF);
+ brw_DIM(p, dst, retype(src[0], BRW_REGISTER_TYPE_F));
+ break;
+
default:
- if (inst->opcode < (int) ARRAY_SIZE(opcode_descs)) {
- _mesa_problem(ctx, "Unsupported opcode `%s' in %s",
- opcode_descs[inst->opcode].name, stage_abbrev);
- } else {
- _mesa_problem(ctx, "Unsupported opcode %d in %s", inst->opcode,
- stage_abbrev);
- }
- abort();
+ unreachable("Unsupported opcode");
case SHADER_OPCODE_LOAD_PAYLOAD:
unreachable("Should be lowered by lower_load_payload()");
brw_inst *last = &p->store[last_insn_offset / 16];
if (inst->conditional_mod)
- brw_inst_set_cond_modifier(brw, last, inst->conditional_mod);
- brw_inst_set_no_dd_clear(brw, last, inst->no_dd_clear);
- brw_inst_set_no_dd_check(brw, last, inst->no_dd_check);
+ brw_inst_set_cond_modifier(p->devinfo, last, inst->conditional_mod);
+ brw_inst_set_no_dd_clear(p->devinfo, last, inst->no_dd_clear);
+ brw_inst_set_no_dd_check(p->devinfo, last, inst->no_dd_check);
}
}
- brw_set_uip_jip(p);
+ brw_set_uip_jip(p, start_offset);
annotation_finalize(&annotation, p->next_insn_offset);
+#ifndef NDEBUG
+ bool validated = brw_validate_instructions(p, start_offset, &annotation);
+#else
+ if (unlikely(debug_flag))
+ brw_validate_instructions(p, start_offset, &annotation);
+#endif
+
int before_size = p->next_insn_offset - start_offset;
brw_compact_instructions(p, start_offset, annotation.ann_count,
annotation.ann);
if (unlikely(debug_flag)) {
fprintf(stderr, "Native code for %s\n"
- "SIMD%d shader: %d instructions. %d loops. %d:%d spills:fills. Promoted %u constants. Compacted %d to %d"
+ "SIMD%d shader: %d instructions. %d loops. %u cycles. %d:%d spills:fills. Promoted %u constants. Compacted %d to %d"
" bytes (%.0f%%)\n",
- shader_name, dispatch_width, before_size / 16, loop_count,
+ shader_name, dispatch_width, before_size / 16, loop_count, cfg->cycle_count,
spill_count, fill_count, promoted_constants, before_size, after_size,
100.0f * (before_size - after_size) / before_size);
- dump_assembly(p->store, annotation.ann_count, annotation.ann, brw, prog);
- ralloc_free(annotation.ann);
+ dump_assembly(p->store, annotation.ann_count, annotation.ann,
+ p->devinfo);
+ ralloc_free(annotation.mem_ctx);
}
-
- static GLuint msg_id = 0;
- _mesa_gl_debug(&brw->ctx, &msg_id,
- MESA_DEBUG_SOURCE_SHADER_COMPILER,
- MESA_DEBUG_TYPE_OTHER,
- MESA_DEBUG_SEVERITY_NOTIFICATION,
- "%s SIMD%d shader: %d inst, %d loops, %d:%d spills:fills, "
- "Promoted %u constants, compacted %d to %d bytes.\n",
- stage_abbrev, dispatch_width, before_size / 16, loop_count,
- spill_count, fill_count, promoted_constants, before_size, after_size);
+ assert(validated);
+
+ compiler->shader_debug_log(log_data,
+ "%s SIMD%d shader: %d inst, %d loops, %u cycles, "
+ "%d:%d spills:fills, Promoted %u constants, "
+ "compacted %d to %d bytes.",
+ _mesa_shader_stage_to_abbrev(stage),
+ dispatch_width, before_size / 16,
+ loop_count, cfg->cycle_count, spill_count,
+ fill_count, promoted_constants, before_size,
+ after_size);
return start_offset;
}
projects / mesa.git / blobdiff