[Mesa-dev] [PATCH v2 06/15] st/mesa: implement GL_AMD_performance_monitor
Samuel Pitoiset
samuel.pitoiset at gmail.com
Sun Mar 22 08:35:40 PDT 2015
From: Christoph Bumiller <e0425955 at student.tuwien.ac.at>
This is based on the original patch of Christoph Bumiller.
(source: http://people.freedesktop.org/~chrisbmr/perfmon.diff)
As for the Gallium HUD, we keep a list of busy queries in a ring
buffer in order to prevent stalls when reading queries.
Drivers must implement get_driver_query_group_info and
get_driver_query_info in order to enable this extension.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
src/mesa/Makefile.sources | 2 +
src/mesa/state_tracker/st_cb_perfmon.c | 455 +++++++++++++++++++++++++++++++++
src/mesa/state_tracker/st_cb_perfmon.h | 70 +++++
src/mesa/state_tracker/st_context.c | 4 +
src/mesa/state_tracker/st_extensions.c | 3 +
5 files changed, 534 insertions(+)
create mode 100644 src/mesa/state_tracker/st_cb_perfmon.c
create mode 100644 src/mesa/state_tracker/st_cb_perfmon.h
diff --git a/src/mesa/Makefile.sources b/src/mesa/Makefile.sources
index 217be9a..e54e618 100644
--- a/src/mesa/Makefile.sources
+++ b/src/mesa/Makefile.sources
@@ -432,6 +432,8 @@ STATETRACKER_FILES = \
state_tracker/st_cb_flush.h \
state_tracker/st_cb_msaa.c \
state_tracker/st_cb_msaa.h \
+ state_tracker/st_cb_perfmon.c \
+ state_tracker/st_cb_perfmon.h \
state_tracker/st_cb_program.c \
state_tracker/st_cb_program.h \
state_tracker/st_cb_queryobj.c \
diff --git a/src/mesa/state_tracker/st_cb_perfmon.c b/src/mesa/state_tracker/st_cb_perfmon.c
new file mode 100644
index 0000000..fb6774b
--- /dev/null
+++ b/src/mesa/state_tracker/st_cb_perfmon.c
@@ -0,0 +1,455 @@
+/*
+ * Copyright (C) 2013 Christoph Bumiller
+ * Copyright (C) 2015 Samuel Pitoiset
+ *
+ * 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.
+ */
+
+/**
+ * Performance monitoring counters interface to gallium.
+ */
+
+#include "st_context.h"
+#include "st_cb_bitmap.h"
+#include "st_cb_perfmon.h"
+
+#include "util/bitset.h"
+
+#include "pipe/p_context.h"
+#include "pipe/p_screen.h"
+#include "util/u_memory.h"
+
+/**
+ * Return a PIPE_QUERY_x type >= PIPE_QUERY_DRIVER_SPECIFIC, or -1 if
+ * the driver-specific query doesn't exist.
+ */
+static int
+find_query_type(struct pipe_screen *screen, const char *name)
+{
+ int num_queries;
+ int type = -1;
+ int i;
+
+ num_queries = screen->get_driver_query_info(screen, 0, NULL);
+ if (!num_queries)
+ return type;
+
+ for (i = 0; i < num_queries; i++) {
+ struct pipe_driver_query_info info;
+
+ if (!screen->get_driver_query_info(screen, i, &info))
+ continue;
+
+ if (!strncmp(info.name, name, strlen(name))) {
+ type = info.query_type;
+ break;
+ }
+ }
+ return type;
+}
+
+static bool
+init_perf_monitor(struct gl_context *ctx, struct gl_perf_monitor_object *m)
+{
+ struct st_perf_monitor_object *stm = st_perf_monitor_object(m);
+ struct pipe_screen *screen = st_context(ctx)->pipe->screen;
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ int gid, cid;
+
+ st_flush_bitmap_cache(st_context(ctx));
+
+ /* Create a query for each active counter. */
+ for (gid = 0; gid < ctx->PerfMonitor.NumGroups; gid++) {
+ const struct gl_perf_monitor_group *g = &ctx->PerfMonitor.Groups[gid];
+ for (cid = 0; cid < g->NumCounters; cid++) {
+ const struct gl_perf_monitor_counter *c = &g->Counters[cid];
+ struct st_perf_counter_object *cntr;
+ int query_type;
+
+ if (!BITSET_TEST(m->ActiveCounters[gid], cid))
+ continue;
+
+ query_type = find_query_type(screen, c->Name);
+ assert(query_type != -1);
+
+ cntr = CALLOC_STRUCT(st_perf_counter_object);
+ if (!cntr)
+ return false;
+
+ cntr->queries[cntr->head] = pipe->create_query(pipe, query_type, 0);
+ cntr->query_type = query_type;
+ cntr->id = cid;
+ cntr->group_id = gid;
+
+ list_addtail(&cntr->list, &stm->active_counters);
+ }
+ }
+ return true;
+}
+
+static void
+reset_perf_monitor(struct st_perf_monitor_object *stm,
+ struct pipe_context *pipe)
+{
+ struct st_perf_counter_object *cntr, *tmp;
+ int i;
+
+ LIST_FOR_EACH_ENTRY_SAFE(cntr, tmp, &stm->active_counters, list) {
+ for (i = 0; i < ARRAY_SIZE(cntr->queries); i++) {
+ if (cntr->queries[i])
+ pipe->destroy_query(pipe, cntr->queries[i]);
+ }
+ list_del(&cntr->list);
+ free(cntr);
+ }
+}
+
+static unsigned
+read_query_results(struct pipe_context *pipe, GLenum type,
+ struct st_perf_counter_object *cntr,
+ union pipe_query_result *results)
+{
+ unsigned num_results = 0;
+
+ while (1) {
+ union pipe_query_result result;
+
+ if (!pipe->get_query_result(pipe, cntr->queries[cntr->tail],
+ FALSE, &result))
+ break;
+
+ switch (type) {
+ case GL_UNSIGNED_INT64_AMD:
+ (*results).u64 += result.u64;
+ break;
+ case GL_UNSIGNED_INT:
+ (*results).u32 += result.u32;
+ break;
+ case GL_FLOAT:
+ case GL_PERCENTAGE_AMD:
+ (*results).f += result.f;
+ break;
+ }
+ num_results++;
+
+ if (cntr->tail == cntr->head)
+ break;
+
+ cntr->tail = (cntr->tail + 1) % ST_PERFMON_NUM_QUERIES;
+ }
+ return num_results;
+}
+
+static struct gl_perf_monitor_object *
+st_NewPerfMonitor()
+{
+ struct st_perf_monitor_object *stq = ST_CALLOC_STRUCT(st_perf_monitor_object);
+ if (stq) {
+ list_inithead(&stq->active_counters);
+ return &stq->base;
+ }
+ return NULL;
+}
+
+static void
+st_DeletePerfMonitor(struct gl_context *ctx, struct gl_perf_monitor_object *m)
+{
+ struct st_perf_monitor_object *stm = st_perf_monitor_object(m);
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+
+ reset_perf_monitor(stm, pipe);
+ FREE(stm);
+}
+
+static GLboolean
+st_BeginPerfMonitor(struct gl_context *ctx, struct gl_perf_monitor_object *m)
+{
+ struct st_perf_monitor_object *stm = st_perf_monitor_object(m);
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_perf_counter_object *cntr;
+ int gid;
+
+ /* Check the number of active counters for each group. */
+ for (gid = 0; gid < ctx->PerfMonitor.NumGroups; gid++) {
+ const struct gl_perf_monitor_group *g = &ctx->PerfMonitor.Groups[gid];
+ if (m->ActiveGroups[gid] > g->MaxActiveCounters) {
+ /* Maximum number of counters reached. Cannot start the session. */
+ return false;
+ }
+ }
+
+ if (LIST_IS_EMPTY(&stm->active_counters)) {
+ /* Create queries for each active counter before starting
+ * a new monitoring session. */
+ if (!init_perf_monitor(ctx, m))
+ goto fail;
+ } else {
+ /* As for the Gallium HUD, we keep a list of busy queries in a ring
+ * buffer in order to prevent stalls when reading queries. */
+ LIST_FOR_EACH_ENTRY(cntr, &stm->active_counters, list) {
+ if ((cntr->head + 1) % ST_PERFMON_NUM_QUERIES == cntr->tail) {
+ /* All queries are busy, throw away the last query and create
+ * a new one. */
+ pipe->destroy_query(pipe, cntr->queries[cntr->head]);
+ cntr->queries[cntr->head] =
+ pipe->create_query(pipe, cntr->query_type, 0);
+ } else {
+ /* Add a new query for this frame. */
+ cntr->head = (cntr->head + 1) % ST_PERFMON_NUM_QUERIES;
+ if (!cntr->queries[cntr->head]) {
+ cntr->queries[cntr->head] =
+ pipe->create_query(pipe, cntr->query_type, 0);
+ }
+ }
+ }
+ }
+
+ /* Start the newest query for each active counter. */
+ LIST_FOR_EACH_ENTRY(cntr, &stm->active_counters, list) {
+ if (!pipe->begin_query(pipe, cntr->queries[cntr->head]))
+ goto fail;
+ }
+ return true;
+
+fail:
+ /* Failed to start the monitoring session. */
+ reset_perf_monitor(stm, pipe);
+ return false;
+}
+
+static void
+st_EndPerfMonitor(struct gl_context *ctx, struct gl_perf_monitor_object *m)
+{
+ struct st_perf_monitor_object *stm = st_perf_monitor_object(m);
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_perf_counter_object *cntr;
+
+ /* Stop the newest query for each active counter. */
+ LIST_FOR_EACH_ENTRY(cntr, &stm->active_counters, list)
+ pipe->end_query(pipe, cntr->queries[cntr->head]);
+}
+
+static void
+st_ResetPerfMonitor(struct gl_context *ctx, struct gl_perf_monitor_object *m)
+{
+ struct st_perf_monitor_object *stm = st_perf_monitor_object(m);
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+
+ if (!m->Ended)
+ st_EndPerfMonitor(ctx, m);
+
+ reset_perf_monitor(stm, pipe);
+
+ if (m->Active)
+ st_BeginPerfMonitor(ctx, m);
+}
+
+static GLboolean
+st_IsPerfMonitorResultAvailable(struct gl_context *ctx,
+ struct gl_perf_monitor_object *m)
+{
+ struct st_perf_monitor_object *stm = st_perf_monitor_object(m);
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_perf_counter_object *cntr;
+
+ if (LIST_IS_EMPTY(&stm->active_counters))
+ return false;
+
+ /* The result of a monitoring session is only available if the oldest
+ * query of each active counter is idle. */
+ LIST_FOR_EACH_ENTRY(cntr, &stm->active_counters, list) {
+ union pipe_query_result result;
+ if (!pipe->get_query_result(pipe, cntr->queries[cntr->tail],
+ FALSE, &result)) {
+ /* The oldest query is busy. */
+ return false;
+ }
+ }
+ return true;
+}
+
+static void
+st_GetPerfMonitorResult(struct gl_context *ctx,
+ struct gl_perf_monitor_object *m,
+ GLsizei dataSize,
+ GLuint *data,
+ GLint *bytesWritten)
+{
+ struct st_perf_monitor_object *stm = st_perf_monitor_object(m);
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct st_perf_counter_object *cntr;
+
+ /* Copy data to the supplied array (data).
+ *
+ * The output data format is: <group ID, counter ID, value> for each
+ * active counter. The API allows counters to appear in any order.
+ */
+ GLsizei offset = 0;
+
+ /* Read query results for each active counter. */
+ LIST_FOR_EACH_ENTRY(cntr, &stm->active_counters, list) {
+ union pipe_query_result results = {};
+ unsigned num_results = 0;
+ int gid, cid;
+ GLenum type;
+
+ cid = cntr->id;
+ gid = cntr->group_id;
+ type = ctx->PerfMonitor.Groups[gid].Counters[cid].Type;
+
+ num_results = read_query_results(pipe, type, cntr, &results);
+ if (!num_results)
+ continue;
+
+ data[offset++] = gid;
+ data[offset++] = cid;
+ switch (type) {
+ case GL_UNSIGNED_INT64_AMD:
+ *(uint64_t *)&data[offset] = results.u64 / num_results;
+ offset += sizeof(uint64_t) / sizeof(GLuint);
+ break;
+ case GL_UNSIGNED_INT:
+ *(uint32_t *)&data[offset] = results.u32 / num_results;
+ offset += sizeof(uint32_t) / sizeof(GLuint);
+ break;
+ case GL_FLOAT:
+ case GL_PERCENTAGE_AMD:
+ *(GLfloat *)&data[offset] = results.f / (float)num_results;
+ offset += sizeof(GLfloat) / sizeof(GLuint);
+ break;
+ }
+ }
+
+ if (bytesWritten)
+ *bytesWritten = offset * sizeof(GLuint);
+}
+
+bool
+st_init_perfmon(struct st_context *st)
+{
+ struct gl_perf_monitor_state *perfmon = &st->ctx->PerfMonitor;
+ struct pipe_screen *screen = st->pipe->screen;
+ struct gl_perf_monitor_group *groups = NULL;
+ int num_counters, num_groups;
+ int gid, cid;
+
+ if (!screen->get_driver_query_info || !screen->get_driver_query_group_info)
+ return false;
+
+ /* Get the number of available queries. */
+ num_counters = screen->get_driver_query_info(screen, 0, NULL);
+ if (!num_counters)
+ return false;
+
+ /* Get the number of available groups. */
+ num_groups = screen->get_driver_query_group_info(screen, 0, NULL);
+ if (num_groups)
+ groups = CALLOC(num_groups, sizeof(*groups));
+ if (!groups)
+ return false;
+
+ for (gid = 0; gid < num_groups; gid++) {
+ struct gl_perf_monitor_group *g = &groups[gid];
+ struct pipe_driver_query_group_info group_info;
+ struct gl_perf_monitor_counter *counters = NULL;
+
+ if (!screen->get_driver_query_group_info(screen, gid, &group_info))
+ continue;
+
+ g->Name = group_info.name;
+ g->MaxActiveCounters = group_info.max_active_queries;
+ g->NumCounters = 0;
+ g->Counters = NULL;
+
+ if (group_info.num_queries)
+ counters = CALLOC(group_info.num_queries, sizeof(*counters));
+ if (!counters)
+ goto fail;
+
+ for (cid = 0; cid < num_counters; cid++) {
+ struct gl_perf_monitor_counter *c = &counters[g->NumCounters];
+ struct pipe_driver_query_info info;
+
+ if (!screen->get_driver_query_info(screen, cid, &info))
+ continue;
+ if (info.group_id != gid)
+ continue;
+
+ c->Name = info.name;
+ switch (info.type) {
+ case PIPE_DRIVER_QUERY_TYPE_UINT64:
+ c->Minimum.u64 = 0;
+ c->Maximum.u64 = info.max_value.u64;
+ c->Type = GL_UNSIGNED_INT64_AMD;
+ break;
+ case PIPE_DRIVER_QUERY_TYPE_UINT:
+ c->Minimum.u32 = 0;
+ c->Maximum.u32 = info.max_value.u32;
+ c->Type = GL_UNSIGNED_INT;
+ break;
+ case PIPE_DRIVER_QUERY_TYPE_FLOAT:
+ c->Minimum.f = 0.0;
+ c->Maximum.f = info.max_value.f;
+ c->Type = GL_FLOAT;
+ break;
+ case PIPE_DRIVER_QUERY_TYPE_PERCENTAGE:
+ c->Minimum.f = 0.0;
+ c->Maximum.f = 100.0;
+ c->Type = GL_PERCENTAGE_AMD;
+ break;
+ default:
+ unreachable("Should never happen: invalid driver query type");
+ }
+ g->NumCounters++;
+ }
+ g->Counters = counters;
+ }
+
+ perfmon->NumGroups = num_groups;
+ perfmon->Groups = groups;
+ return true;
+
+fail:
+ for (gid = 0; gid < num_groups; gid++)
+ FREE((void *)groups[gid].Counters);
+ FREE(groups);
+ return false;
+}
+
+void
+st_destroy_perfmon(struct st_context *st)
+{
+ struct gl_perf_monitor_state *perfmon = &st->ctx->PerfMonitor;
+ int gid;
+
+ for (gid = 0; gid < perfmon->NumGroups; gid++)
+ FREE((void *)perfmon->Groups[gid].Counters);
+ FREE((void *)perfmon->Groups);
+}
+
+void st_init_perfmon_functions(struct dd_function_table *functions)
+{
+ functions->NewPerfMonitor = st_NewPerfMonitor;
+ functions->DeletePerfMonitor = st_DeletePerfMonitor;
+ functions->BeginPerfMonitor = st_BeginPerfMonitor;
+ functions->EndPerfMonitor = st_EndPerfMonitor;
+ functions->ResetPerfMonitor = st_ResetPerfMonitor;
+ functions->IsPerfMonitorResultAvailable = st_IsPerfMonitorResultAvailable;
+ functions->GetPerfMonitorResult = st_GetPerfMonitorResult;
+}
diff --git a/src/mesa/state_tracker/st_cb_perfmon.h b/src/mesa/state_tracker/st_cb_perfmon.h
new file mode 100644
index 0000000..ba5bf04
--- /dev/null
+++ b/src/mesa/state_tracker/st_cb_perfmon.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2013 Christoph Bumiller
+ * Copyright (C) 2015 Samuel Pitoiset
+ *
+ * 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.
+ */
+
+#ifndef ST_CB_PERFMON_H
+#define ST_CB_PERFMON_H
+
+#include "util/u_double_list.h"
+
+#define ST_PERFMON_NUM_QUERIES 8
+
+/**
+ * Subclass of gl_perf_monitor_object
+ */
+struct st_perf_monitor_object
+{
+ struct gl_perf_monitor_object base;
+ struct list_head active_counters;
+};
+
+struct st_perf_counter_object
+{
+ struct list_head list;
+ int query_type;
+ int id;
+ int group_id;
+
+ /* Ring of queries. If a query is busy, we use another slot. */
+ struct pipe_query *queries[ST_PERFMON_NUM_QUERIES];
+ unsigned head, tail;
+};
+
+/**
+ * Cast wrapper
+ */
+static INLINE struct st_perf_monitor_object *
+st_perf_monitor_object(struct gl_perf_monitor_object *q)
+{
+ return (struct st_perf_monitor_object *)q;
+}
+
+bool
+st_init_perfmon(struct st_context *st);
+
+void
+st_destroy_perfmon(struct st_context *st);
+
+extern void
+st_init_perfmon_functions(struct dd_function_table *functions);
+
+#endif
diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
index 5fe132a..2146424 100644
--- a/src/mesa/state_tracker/st_context.c
+++ b/src/mesa/state_tracker/st_context.c
@@ -51,6 +51,7 @@
#include "st_cb_fbo.h"
#include "st_cb_feedback.h"
#include "st_cb_msaa.h"
+#include "st_cb_perfmon.h"
#include "st_cb_program.h"
#include "st_cb_queryobj.h"
#include "st_cb_readpixels.h"
@@ -116,6 +117,7 @@ st_destroy_context_priv(struct st_context *st)
st_destroy_bitmap(st);
st_destroy_drawpix(st);
st_destroy_drawtex(st);
+ st_destroy_perfmon(st);
for (shader = 0; shader < ARRAY_SIZE(st->state.sampler_views); shader++) {
for (i = 0; i < ARRAY_SIZE(st->state.sampler_views[0]); i++) {
@@ -190,6 +192,7 @@ st_create_context_priv( struct gl_context *ctx, struct pipe_context *pipe,
st_init_bitmap(st);
st_init_clear(st);
st_init_draw( st );
+ st_init_perfmon(st);
/* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
if (pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES))
@@ -414,6 +417,7 @@ void st_init_driver_functions(struct dd_function_table *functions)
st_init_fbo_functions(functions);
st_init_feedback_functions(functions);
st_init_msaa_functions(functions);
+ st_init_perfmon_functions(functions);
st_init_program_functions(functions);
st_init_query_functions(functions);
st_init_cond_render_functions(functions);
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index bc20f73..5b6d6c6 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -629,6 +629,9 @@ void st_init_extensions(struct pipe_screen *screen,
extensions->OES_EGL_image_external = GL_TRUE;
extensions->OES_draw_texture = GL_TRUE;
+ if (screen->get_driver_query_info && screen->get_driver_query_group_info)
+ extensions->AMD_performance_monitor = GL_TRUE;
+
/* Expose the extensions which directly correspond to gallium caps. */
for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
if (screen->get_param(screen, cap_mapping[i].cap)) {
--
2.3.3
More information about the mesa-dev
mailing list