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ec82be57e813d5b5e339e9045953ae275ace854a
third_party_mesa3d/src/gallium/drivers/iris/iris_query.c
Kenneth Graunke ec82be57e8 iris: timestamps
2019-02-21 10:26:08 -08:00

556 lines
17 KiB
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/*
* Copyright © 2017 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/**
* @file iris_query.c
*
* XXX: this file is EMPTY. it will eventually implement query objects!
*/
#include <stdio.h>
#include <errno.h>
#include "pipe/p_defines.h"
#include "pipe/p_state.h"
#include "pipe/p_context.h"
#include "pipe/p_screen.h"
#include "util/u_inlines.h"
#include "iris_context.h"
#include "iris_defines.h"
#include "iris_resource.h"
#include "iris_screen.h"
#define IA_VERTICES_COUNT 0x2310
#define IA_PRIMITIVES_COUNT 0x2318
#define VS_INVOCATION_COUNT 0x2320
#define HS_INVOCATION_COUNT 0x2300
#define DS_INVOCATION_COUNT 0x2308
#define GS_INVOCATION_COUNT 0x2328
#define GS_PRIMITIVES_COUNT 0x2330
#define CL_INVOCATION_COUNT 0x2338
#define CL_PRIMITIVES_COUNT 0x2340
#define PS_INVOCATION_COUNT 0x2348
#define CS_INVOCATION_COUNT 0x2290
#define PS_DEPTH_COUNT 0x2350
#define SO_PRIM_STORAGE_NEEDED(n) (0x5240 + (n) * 8)
#define SO_NUM_PRIMS_WRITTEN(n) (0x5200 + (n) * 8)
#define CS_GPR(n) (0x2600 + (n) * 8)
#define MI_MATH (0x1a << 23)
#define MI_ALU_LOAD 0x080
#define MI_ALU_LOADINV 0x480
#define MI_ALU_LOAD0 0x081
#define MI_ALU_LOAD1 0x481
#define MI_ALU_ADD 0x100
#define MI_ALU_SUB 0x101
#define MI_ALU_AND 0x102
#define MI_ALU_OR 0x103
#define MI_ALU_XOR 0x104
#define MI_ALU_STORE 0x180
#define MI_ALU_STOREINV 0x580
#define MI_ALU_R0 0x00
#define MI_ALU_R1 0x01
#define MI_ALU_R2 0x02
#define MI_ALU_R3 0x03
#define MI_ALU_R4 0x04
#define MI_ALU_SRCA 0x20
#define MI_ALU_SRCB 0x21
#define MI_ALU_ACCU 0x31
#define MI_ALU_ZF 0x32
#define MI_ALU_CF 0x33
#define MI_ALU0(op) ((MI_ALU_##op << 20))
#define MI_ALU1(op, x) ((MI_ALU_##op << 20) | (MI_ALU_##x << 10))
#define MI_ALU2(op, x, y) \
((MI_ALU_##op << 20) | (MI_ALU_##x << 10) | (MI_ALU_##y))
struct iris_query {
enum pipe_query_type type;
int index;
bool ready;
uint64_t result;
struct iris_bo *bo;
struct iris_query_snapshots *map;
};
struct iris_query_snapshots {
uint64_t start;
uint64_t end;
uint64_t snapshots_landed;
};
/**
* Is this type of query written by PIPE_CONTROL?
*/
static bool
iris_is_query_pipelined(struct iris_query *q)
{
switch (q->type) {
case PIPE_QUERY_OCCLUSION_COUNTER:
case PIPE_QUERY_OCCLUSION_PREDICATE:
case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
case PIPE_QUERY_TIMESTAMP:
case PIPE_QUERY_TIMESTAMP_DISJOINT:
case PIPE_QUERY_TIME_ELAPSED:
return true;
default:
return false;
}
}
static void
write_availability(struct iris_context *ice,
struct iris_query *q,
bool available)
{
struct iris_batch *batch = &ice->render_batch;
unsigned flags = PIPE_CONTROL_WRITE_IMMEDIATE;
unsigned offset = offsetof(struct iris_query_snapshots, snapshots_landed);
if (!iris_is_query_pipelined(q)) {
ice->vtbl.store_data_imm64(batch, q->bo, offset, available);
} else {
if (available) {
/* Order available *after* the query results. */
flags |= PIPE_CONTROL_FLUSH_ENABLE;
} else {
/* Make it unavailable *before* any pipelined reads. */
flags |= PIPE_CONTROL_CS_STALL;
}
iris_emit_pipe_control_write(batch, flags, q->bo, offset, available);
}
}
/**
* Write PS_DEPTH_COUNT to q->(dest) via a PIPE_CONTROL.
*/
static void
iris_pipelined_write(struct iris_batch *batch,
struct iris_query *q,
enum pipe_control_flags flags,
unsigned offset)
{
const struct gen_device_info *devinfo = &batch->screen->devinfo;
const unsigned optional_cs_stall =
devinfo->gen == 9 && devinfo->gt == 4 ? PIPE_CONTROL_CS_STALL : 0;
iris_emit_pipe_control_write(batch, flags | optional_cs_stall,
q->bo, offset, 0ull);
}
static void
write_value(struct iris_context *ice, struct iris_query *q, unsigned offset)
{
struct iris_batch *batch = &ice->render_batch;
const struct gen_device_info *devinfo = &batch->screen->devinfo;
switch (q->type) {
case PIPE_QUERY_OCCLUSION_COUNTER:
case PIPE_QUERY_OCCLUSION_PREDICATE:
case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
if (devinfo->gen >= 10) {
/* "Driver must program PIPE_CONTROL with only Depth Stall Enable
* bit set prior to programming a PIPE_CONTROL with Write PS Depth
* Count sync operation."
*/
iris_emit_pipe_control_flush(batch, PIPE_CONTROL_DEPTH_STALL);
}
iris_pipelined_write(&ice->render_batch, q,
PIPE_CONTROL_WRITE_DEPTH_COUNT |
PIPE_CONTROL_DEPTH_STALL,
offset);
break;
case PIPE_QUERY_TIME_ELAPSED:
case PIPE_QUERY_TIMESTAMP:
case PIPE_QUERY_TIMESTAMP_DISJOINT:
iris_pipelined_write(&ice->render_batch, q,
PIPE_CONTROL_WRITE_TIMESTAMP,
offset);
break;
case PIPE_QUERY_PRIMITIVES_GENERATED:
iris_emit_pipe_control_flush(batch,
PIPE_CONTROL_CS_STALL |
PIPE_CONTROL_STALL_AT_SCOREBOARD);
ice->vtbl.store_register_mem64(batch,
q->index == 0 ? CL_INVOCATION_COUNT :
SO_PRIM_STORAGE_NEEDED(q->index),
q->bo, offset, false);
break;
case PIPE_QUERY_PIPELINE_STATISTICS: {
static const uint32_t index_to_reg[] = {
IA_VERTICES_COUNT,
IA_PRIMITIVES_COUNT,
VS_INVOCATION_COUNT,
GS_INVOCATION_COUNT,
GS_PRIMITIVES_COUNT,
CL_INVOCATION_COUNT,
CL_PRIMITIVES_COUNT,
PS_INVOCATION_COUNT,
HS_INVOCATION_COUNT,
DS_INVOCATION_COUNT,
CS_INVOCATION_COUNT,
};
const uint32_t reg = index_to_reg[q->index];
iris_emit_pipe_control_flush(batch,
PIPE_CONTROL_CS_STALL |
PIPE_CONTROL_STALL_AT_SCOREBOARD);
ice->vtbl.store_register_mem64(batch, reg, q->bo, offset, false);
break;
}
default:
assert(false);
}
}
static void
calculate_result_on_cpu(struct iris_query *q)
{
switch (q->type) {
case PIPE_QUERY_OCCLUSION_PREDICATE:
case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
q->result = q->map->end != q->map->start;
break;
case PIPE_QUERY_TIMESTAMP:
case PIPE_QUERY_TIMESTAMP_DISJOINT:
/* The timestamp is the single ending snapshot. */
// XXX: timebase scale
q->result = q->map->end;
break;
case PIPE_QUERY_OCCLUSION_COUNTER:
case PIPE_QUERY_TIME_ELAPSED:
case PIPE_QUERY_PRIMITIVES_GENERATED:
case PIPE_QUERY_PRIMITIVES_EMITTED:
case PIPE_QUERY_PIPELINE_STATISTICS:
default:
q->result = q->map->end - q->map->start;
break;
}
q->ready = true;
}
/*
* GPR0 = (GPR0 == 0) ? 0 : 1;
*/
static void
gpr0_to_bool(struct iris_context *ice)
{
struct iris_batch *batch = &ice->render_batch;
ice->vtbl.load_register_imm64(batch, CS_GPR(1), 1ull);
static const uint32_t math[] = {
MI_MATH | (9 - 2),
MI_ALU2(LOAD, SRCA, R0),
MI_ALU1(LOAD0, SRCB),
MI_ALU0(ADD),
MI_ALU2(STOREINV, R0, ZF),
MI_ALU2(LOAD, SRCA, R0),
MI_ALU2(LOAD, SRCB, R1),
MI_ALU0(AND),
MI_ALU2(STORE, R0, ACCU),
};
iris_batch_emit(batch, math, sizeof(math));
}
/**
* Calculate the result and store it to CS_GPR0.
*/
static void
calculate_result_on_gpu(struct iris_context *ice, struct iris_query *q)
{
struct iris_batch *batch = &ice->render_batch;
ice->vtbl.load_register_mem64(batch, CS_GPR(1), q->bo,
offsetof(struct iris_query_snapshots, start));
ice->vtbl.load_register_mem64(batch, CS_GPR(2), q->bo,
offsetof(struct iris_query_snapshots, end));
static const uint32_t math[] = {
MI_MATH | (5 - 2),
MI_ALU2(LOAD, SRCA, R2),
MI_ALU2(LOAD, SRCB, R1),
MI_ALU0(SUB),
MI_ALU2(STORE, R0, ACCU),
};
iris_batch_emit(batch, math, sizeof(math));
if (q->type == PIPE_QUERY_OCCLUSION_PREDICATE ||
q->type == PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE)
gpr0_to_bool(ice);
}
static struct pipe_query *
iris_create_query(struct pipe_context *ctx,
unsigned query_type,
unsigned index)
{
struct iris_query *q = calloc(1, sizeof(struct iris_query));
q->type = query_type;
q->index = index;
return (struct pipe_query *) q;
}
static void
iris_destroy_query(struct pipe_context *ctx, struct pipe_query *p_query)
{
struct iris_query *query = (void *) p_query;
iris_bo_unreference(query->bo);
free(query);
}
static boolean
iris_begin_query(struct pipe_context *ctx, struct pipe_query *query)
{
struct iris_screen *screen = (void *) ctx->screen;
struct iris_context *ice = (void *) ctx;
struct iris_query *q = (void *) query;
iris_bo_unreference(q->bo);
q->bo = iris_bo_alloc(screen->bufmgr, "query object", 4096,
IRIS_MEMZONE_OTHER);
if (!q->bo)
return false;
q->map = iris_bo_map(&ice->dbg, q->bo, MAP_READ | MAP_ASYNC);
if (!q->map)
return false;
q->result = 0ull;
q->ready = false;
if (q->type == PIPE_QUERY_PRIMITIVES_GENERATED && q->index == 0) {
ice->state.prims_generated_query_active = true;
ice->state.dirty |= IRIS_DIRTY_STREAMOUT;
}
write_availability(ice, q, false);
write_value(ice, q, offsetof(struct iris_query_snapshots, start));
return true;
}
static bool
iris_end_query(struct pipe_context *ctx, struct pipe_query *query)
{
struct iris_context *ice = (void *) ctx;
struct iris_query *q = (void *) query;
if (q->type == PIPE_QUERY_TIMESTAMP) {
iris_begin_query(ctx, query);
write_availability(ice, q, true);
}
if (q->type == PIPE_QUERY_PRIMITIVES_GENERATED && q->index == 0) {
ice->state.prims_generated_query_active = true;
ice->state.dirty |= IRIS_DIRTY_STREAMOUT;
}
write_value(ice, q, offsetof(struct iris_query_snapshots, end));
write_availability(ice, q, true);
return true;
}
static boolean
iris_get_query_result(struct pipe_context *ctx,
struct pipe_query *query,
boolean wait,
union pipe_query_result *result)
{
struct iris_context *ice = (void *) ctx;
struct iris_query *q = (void *) query;
if (!q->ready) {
if (iris_batch_references(&ice->render_batch, q->bo))
iris_batch_flush(&ice->render_batch);
if (!q->map->snapshots_landed) {
if (wait)
iris_bo_wait_rendering(q->bo);
else
return false;
}
assert(q->map->snapshots_landed);
calculate_result_on_cpu(q);
}
assert(q->ready);
if (q->type == PIPE_QUERY_PIPELINE_STATISTICS) {
switch (q->index) {
case 0:
result->pipeline_statistics.ia_vertices = q->result;
break;
case 1:
result->pipeline_statistics.ia_primitives = q->result;
break;
case 2:
result->pipeline_statistics.vs_invocations = q->result;
break;
case 3:
result->pipeline_statistics.gs_invocations = q->result;
break;
case 4:
result->pipeline_statistics.gs_primitives = q->result;
break;
case 5:
result->pipeline_statistics.c_invocations = q->result;
break;
case 6:
result->pipeline_statistics.c_primitives = q->result;
break;
case 7:
result->pipeline_statistics.ps_invocations = q->result;
break;
case 8:
result->pipeline_statistics.hs_invocations = q->result;
break;
case 9:
result->pipeline_statistics.ds_invocations = q->result;
break;
case 10:
result->pipeline_statistics.cs_invocations = q->result;
break;
}
} else {
result->u64 = q->result;
}
return true;
}
static void
iris_get_query_result_resource(struct pipe_context *ctx,
struct pipe_query *query,
boolean wait,
enum pipe_query_value_type result_type,
int index,
struct pipe_resource *p_res,
unsigned offset)
{
struct iris_context *ice = (void *) ctx;
struct iris_query *q = (void *) query;
struct iris_batch *batch = &ice->render_batch;
unsigned snapshots_landed_offset =
offsetof(struct iris_query_snapshots, snapshots_landed);
if (index == -1) {
/* They're asking for the availability of the result. If we still
* have commands queued up which produce the result, submit them
* now so that progress happens. Either way, copy the snapshots
* landed field to the destination resource.
*/
if (iris_batch_references(batch, q->bo))
iris_batch_flush(batch);
ice->vtbl.copy_mem_mem(batch, iris_resource_bo(p_res), offset,
q->bo, snapshots_landed_offset,
result_type <= PIPE_QUERY_TYPE_U32 ? 4 : 8);
return;
}
if (!q->ready && q->map->snapshots_landed) {
/* The final snapshots happen to have landed, so let's just compute
* the result on the CPU now...
*/
calculate_result_on_cpu(q);
}
if (q->ready) {
/* We happen to have the result on the CPU, so just copy it. */
if (result_type <= PIPE_QUERY_TYPE_U32) {
ice->vtbl.store_data_imm32(batch, iris_resource_bo(p_res), offset,
q->result);
} else {
ice->vtbl.store_data_imm64(batch, iris_resource_bo(p_res), offset,
q->result);
}
/* Make sure the result lands before they use bind the QBO elsewhere
* and use the result.
*/
// XXX: Why? i965 doesn't do this.
iris_emit_pipe_control_flush(batch, PIPE_CONTROL_CS_STALL);
return;
}
/* Calculate the result to CS_GPR0 */
calculate_result_on_gpu(ice, q);
bool predicated = !wait && iris_is_query_pipelined(q);
if (predicated) {
ice->vtbl.load_register_imm64(batch, MI_PREDICATE_SRC1, 0ull);
ice->vtbl.load_register_mem64(batch, MI_PREDICATE_SRC0, q->bo,
snapshots_landed_offset);
uint32_t predicate = MI_PREDICATE |
MI_PREDICATE_LOADOP_LOADINV |
MI_PREDICATE_COMBINEOP_SET |
MI_PREDICATE_COMPAREOP_SRCS_EQUAL;
iris_batch_emit(batch, &predicate, sizeof(uint32_t));
}
if (result_type <= PIPE_QUERY_TYPE_U32) {
ice->vtbl.store_register_mem32(batch, CS_GPR(0),
iris_resource_bo(p_res),
offset, predicated);
} else {
ice->vtbl.store_register_mem64(batch, CS_GPR(0),
iris_resource_bo(p_res),
offset, predicated);
}
}
static void
iris_set_active_query_state(struct pipe_context *pipe, boolean enable)
{
/* Do nothing, intentionally - only u_blitter uses this. */
}
void
iris_init_query_functions(struct pipe_context *ctx)
{
ctx->create_query = iris_create_query;
ctx->destroy_query = iris_destroy_query;
ctx->begin_query = iris_begin_query;
ctx->end_query = iris_end_query;
ctx->get_query_result = iris_get_query_result;
ctx->get_query_result_resource = iris_get_query_result_resource;
ctx->set_active_query_state = iris_set_active_query_state;
}
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