#include "brw_context.h"
#include "brw_defines.h"
-#include "brw_performance_query.h"
#include "intel_batchbuffer.h"
#include "perf/gen_perf.h"
#define OAREPORT_REASON_CTX_SWITCH (1<<3)
#define OAREPORT_REASON_GO_TRANSITION (1<<4)
-#define I915_PERF_OA_SAMPLE_SIZE (8 + /* drm_i915_perf_record_header */ \
- 256) /* OA counter report */
-
-/**
- * Periodic OA samples are read() into these buffer structures via the
- * i915 perf kernel interface and appended to the
- * brw->perfquery.sample_buffers linked list. When we process the
- * results of an OA metrics query we need to consider all the periodic
- * samples between the Begin and End MI_REPORT_PERF_COUNT command
- * markers.
- *
- * 'Periodic' is a simplification as there are other automatic reports
- * written by the hardware also buffered here.
- *
- * Considering three queries, A, B and C:
- *
- * Time ---->
- * ________________A_________________
- * | |
- * | ________B_________ _____C___________
- * | | | | | |
- *
- * And an illustration of sample buffers read over this time frame:
- * [HEAD ][ ][ ][ ][ ][ ][ ][ ][TAIL ]
- *
- * These nodes may hold samples for query A:
- * [ ][ ][ A ][ A ][ A ][ A ][ A ][ ][ ]
- *
- * These nodes may hold samples for query B:
- * [ ][ ][ B ][ B ][ B ][ ][ ][ ][ ]
- *
- * These nodes may hold samples for query C:
- * [ ][ ][ ][ ][ ][ C ][ C ][ C ][ ]
- *
- * The illustration assumes we have an even distribution of periodic
- * samples so all nodes have the same size plotted against time:
- *
- * Note, to simplify code, the list is never empty.
- *
- * With overlapping queries we can see that periodic OA reports may
- * relate to multiple queries and care needs to be take to keep
- * track of sample buffers until there are no queries that might
- * depend on their contents.
- *
- * We use a node ref counting system where a reference ensures that a
- * node and all following nodes can't be freed/recycled until the
- * reference drops to zero.
- *
- * E.g. with a ref of one here:
- * [ 0 ][ 0 ][ 1 ][ 0 ][ 0 ][ 0 ][ 0 ][ 0 ][ 0 ]
- *
- * These nodes could be freed or recycled ("reaped"):
- * [ 0 ][ 0 ]
- *
- * These must be preserved until the leading ref drops to zero:
- * [ 1 ][ 0 ][ 0 ][ 0 ][ 0 ][ 0 ][ 0 ]
- *
- * When a query starts we take a reference on the current tail of
- * the list, knowing that no already-buffered samples can possibly
- * relate to the newly-started query. A pointer to this node is
- * also saved in the query object's ->oa.samples_head.
- *
- * E.g. starting query A while there are two nodes in .sample_buffers:
- * ________________A________
- * |
- *
- * [ 0 ][ 1 ]
- * ^_______ Add a reference and store pointer to node in
- * A->oa.samples_head
- *
- * Moving forward to when the B query starts with no new buffer nodes:
- * (for reference, i915 perf reads() are only done when queries finish)
- * ________________A_______
- * | ________B___
- * | |
- *
- * [ 0 ][ 2 ]
- * ^_______ Add a reference and store pointer to
- * node in B->oa.samples_head
- *
- * Once a query is finished, after an OA query has become 'Ready',
- * once the End OA report has landed and after we we have processed
- * all the intermediate periodic samples then we drop the
- * ->oa.samples_head reference we took at the start.
- *
- * So when the B query has finished we have:
- * ________________A________
- * | ______B___________
- * | | |
- * [ 0 ][ 1 ][ 0 ][ 0 ][ 0 ]
- * ^_______ Drop B->oa.samples_head reference
- *
- * We still can't free these due to the A->oa.samples_head ref:
- * [ 1 ][ 0 ][ 0 ][ 0 ]
- *
- * When the A query finishes: (note there's a new ref for C's samples_head)
- * ________________A_________________
- * | |
- * | _____C_________
- * | | |
- * [ 0 ][ 0 ][ 0 ][ 0 ][ 1 ][ 0 ][ 0 ]
- * ^_______ Drop A->oa.samples_head reference
- *
- * And we can now reap these nodes up to the C->oa.samples_head:
- * [ X ][ X ][ X ][ X ]
- * keeping -> [ 1 ][ 0 ][ 0 ]
- *
- * We reap old sample buffers each time we finish processing an OA
- * query by iterating the sample_buffers list from the head until we
- * find a referenced node and stop.
- *
- * Reaped buffers move to a perfquery.free_sample_buffers list and
- * when we come to read() we first look to recycle a buffer from the
- * free_sample_buffers list before allocating a new buffer.
- */
-struct brw_oa_sample_buf {
- struct exec_node link;
- int refcount;
- int len;
- uint8_t buf[I915_PERF_OA_SAMPLE_SIZE * 10];
- uint32_t last_timestamp;
+struct brw_perf_query_object {
+ struct gl_perf_query_object base;
+ struct gen_perf_query_object *query;
};
/** Downcasting convenience macro. */
brw_is_perf_query_ready(struct gl_context *ctx,
struct gl_perf_query_object *o);
-static uint64_t
-brw_perf_query_get_metric_id(struct brw_context *brw,
- const struct gen_perf_query_info *query)
-{
- /* These queries are know not to ever change, their config ID has been
- * loaded upon the first query creation. No need to look them up again.
- */
- if (query->kind == GEN_PERF_QUERY_TYPE_OA)
- return query->oa_metrics_set_id;
-
- assert(query->kind == GEN_PERF_QUERY_TYPE_RAW);
-
- /* Raw queries can be reprogrammed up by an external application/library.
- * When a raw query is used for the first time it's id is set to a value !=
- * 0. When it stops being used the id returns to 0. No need to reload the
- * ID when it's already loaded.
- */
- if (query->oa_metrics_set_id != 0) {
- DBG("Raw query '%s' guid=%s using cached ID: %"PRIu64"\n",
- query->name, query->guid, query->oa_metrics_set_id);
- return query->oa_metrics_set_id;
- }
-
- struct gen_perf_query_info *raw_query = (struct gen_perf_query_info *)query;
- if (!gen_perf_load_metric_id(brw->perfquery.perf, query->guid,
- &raw_query->oa_metrics_set_id)) {
- DBG("Unable to read query guid=%s ID, falling back to test config\n", query->guid);
- raw_query->oa_metrics_set_id = 1ULL;
- } else {
- DBG("Raw query '%s'guid=%s loaded ID: %"PRIu64"\n",
- query->name, query->guid, query->oa_metrics_set_id);
- }
- return query->oa_metrics_set_id;
-}
-
static void
dump_perf_query_callback(GLuint id, void *query_void, void *brw_void)
{
- struct gl_context *ctx = brw_void;
+ struct brw_context *ctx = brw_void;
+ struct gen_perf_context *perf_ctx = ctx->perf_ctx;
struct gl_perf_query_object *o = query_void;
- struct brw_perf_query_object *obj = query_void;
-
- switch (obj->query->kind) {
- case GEN_PERF_QUERY_TYPE_OA:
- case GEN_PERF_QUERY_TYPE_RAW:
- DBG("%4d: %-6s %-8s BO: %-4s OA data: %-10s %-15s\n",
- id,
- o->Used ? "Dirty," : "New,",
- o->Active ? "Active," : (o->Ready ? "Ready," : "Pending,"),
- obj->oa.bo ? "yes," : "no,",
- brw_is_perf_query_ready(ctx, o) ? "ready," : "not ready,",
- obj->oa.results_accumulated ? "accumulated" : "not accumulated");
- break;
- case GEN_PERF_QUERY_TYPE_PIPELINE:
- DBG("%4d: %-6s %-8s BO: %-4s\n",
- id,
- o->Used ? "Dirty," : "New,",
- o->Active ? "Active," : (o->Ready ? "Ready," : "Pending,"),
- obj->pipeline_stats.bo ? "yes" : "no");
- break;
- default:
- unreachable("Unknown query type");
- break;
- }
+ struct brw_perf_query_object * brw_query = brw_perf_query(o);
+ struct gen_perf_query_object *obj = brw_query->query;
+
+ DBG("%4d: %-6s %-8s ",
+ id,
+ o->Used ? "Dirty," : "New,",
+ o->Active ? "Active," : (o->Ready ? "Ready," : "Pending,"));
+ gen_perf_dump_query(perf_ctx, obj, &ctx->batch);
}
static void
dump_perf_queries(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
- DBG("Queries: (Open queries = %d, OA users = %d)\n",
- brw->perfquery.n_active_oa_queries, brw->perfquery.n_oa_users);
+ gen_perf_dump_query_count(brw->perf_ctx);
_mesa_HashWalk(ctx->PerfQuery.Objects, dump_perf_query_callback, brw);
}
-/******************************************************************************/
-
-static struct brw_oa_sample_buf *
-get_free_sample_buf(struct brw_context *brw)
-{
- struct exec_node *node = exec_list_pop_head(&brw->perfquery.free_sample_buffers);
- struct brw_oa_sample_buf *buf;
-
- if (node)
- buf = exec_node_data(struct brw_oa_sample_buf, node, link);
- else {
- buf = ralloc_size(brw, sizeof(*buf));
-
- exec_node_init(&buf->link);
- buf->refcount = 0;
- buf->len = 0;
- }
-
- return buf;
-}
-
-static void
-reap_old_sample_buffers(struct brw_context *brw)
-{
- struct exec_node *tail_node =
- exec_list_get_tail(&brw->perfquery.sample_buffers);
- struct brw_oa_sample_buf *tail_buf =
- exec_node_data(struct brw_oa_sample_buf, tail_node, link);
-
- /* Remove all old, unreferenced sample buffers walking forward from
- * the head of the list, except always leave at least one node in
- * the list so we always have a node to reference when we Begin
- * a new query.
- */
- foreach_list_typed_safe(struct brw_oa_sample_buf, buf, link,
- &brw->perfquery.sample_buffers)
- {
- if (buf->refcount == 0 && buf != tail_buf) {
- exec_node_remove(&buf->link);
- exec_list_push_head(&brw->perfquery.free_sample_buffers, &buf->link);
- } else
- return;
- }
-}
-
-static void
-free_sample_bufs(struct brw_context *brw)
-{
- foreach_list_typed_safe(struct brw_oa_sample_buf, buf, link,
- &brw->perfquery.free_sample_buffers)
- ralloc_free(buf);
-
- exec_list_make_empty(&brw->perfquery.free_sample_buffers);
-}
-
-/******************************************************************************/
-
/**
* Driver hook for glGetPerfQueryInfoINTEL().
*/
GLuint *n_active)
{
struct brw_context *brw = brw_context(ctx);
- const struct gen_perf_query_info *query =
- &brw->perfquery.perf->queries[query_index];
+ struct gen_perf_context *perf_ctx = brw->perf_ctx;
+ struct gen_perf_config *perf_cfg = gen_perf_config(perf_ctx);
+ const struct gen_perf_query_info *query = &perf_cfg->queries[query_index];
*name = query->name;
*data_size = query->data_size;
*n_counters = query->n_counters;
-
- switch (query->kind) {
- case GEN_PERF_QUERY_TYPE_OA:
- case GEN_PERF_QUERY_TYPE_RAW:
- *n_active = brw->perfquery.n_active_oa_queries;
- break;
-
- case GEN_PERF_QUERY_TYPE_PIPELINE:
- *n_active = brw->perfquery.n_active_pipeline_stats_queries;
- break;
-
- default:
- unreachable("Unknown query type");
- break;
- }
+ *n_active = gen_perf_active_queries(perf_ctx, query);
}
static GLuint
GLuint64 *raw_max)
{
struct brw_context *brw = brw_context(ctx);
+ struct gen_perf_config *perf_cfg = gen_perf_config(brw->perf_ctx);
const struct gen_perf_query_info *query =
- &brw->perfquery.perf->queries[query_index];
+ &perf_cfg->queries[query_index];
const struct gen_perf_query_counter *counter =
&query->counters[counter_index];
*raw_max = counter->raw_max;
}
-/******************************************************************************/
-
-/**
- * Emit MI_STORE_REGISTER_MEM commands to capture all of the
- * pipeline statistics for the performance query object.
- */
-static void
-snapshot_statistics_registers(struct brw_context *brw,
- struct brw_perf_query_object *obj,
- uint32_t offset_in_bytes)
-{
- const struct gen_perf_query_info *query = obj->query;
- const int n_counters = query->n_counters;
-
- for (int i = 0; i < n_counters; i++) {
- const struct gen_perf_query_counter *counter = &query->counters[i];
-
- assert(counter->data_type == GEN_PERF_COUNTER_DATA_TYPE_UINT64);
-
- brw_store_register_mem64(brw, obj->pipeline_stats.bo,
- counter->pipeline_stat.reg,
- offset_in_bytes + i * sizeof(uint64_t));
- }
-}
-
-/**
- * Add a query to the global list of "unaccumulated queries."
- *
- * Queries are tracked here until all the associated OA reports have
- * been accumulated via accumulate_oa_reports() after the end
- * MI_REPORT_PERF_COUNT has landed in query->oa.bo.
- */
-static void
-add_to_unaccumulated_query_list(struct brw_context *brw,
- struct brw_perf_query_object *obj)
-{
- if (brw->perfquery.unaccumulated_elements >=
- brw->perfquery.unaccumulated_array_size)
- {
- brw->perfquery.unaccumulated_array_size *= 1.5;
- brw->perfquery.unaccumulated =
- reralloc(brw, brw->perfquery.unaccumulated,
- struct brw_perf_query_object *,
- brw->perfquery.unaccumulated_array_size);
- }
-
- brw->perfquery.unaccumulated[brw->perfquery.unaccumulated_elements++] = obj;
-}
-
-/**
- * Remove a query from the global list of unaccumulated queries once
- * after successfully accumulating the OA reports associated with the
- * query in accumulate_oa_reports() or when discarding unwanted query
- * results.
- */
-static void
-drop_from_unaccumulated_query_list(struct brw_context *brw,
- struct brw_perf_query_object *obj)
-{
- for (int i = 0; i < brw->perfquery.unaccumulated_elements; i++) {
- if (brw->perfquery.unaccumulated[i] == obj) {
- int last_elt = --brw->perfquery.unaccumulated_elements;
-
- if (i == last_elt)
- brw->perfquery.unaccumulated[i] = NULL;
- else {
- brw->perfquery.unaccumulated[i] =
- brw->perfquery.unaccumulated[last_elt];
- }
-
- break;
- }
- }
-
- /* Drop our samples_head reference so that associated periodic
- * sample data buffers can potentially be reaped if they aren't
- * referenced by any other queries...
- */
-
- struct brw_oa_sample_buf *buf =
- exec_node_data(struct brw_oa_sample_buf, obj->oa.samples_head, link);
-
- assert(buf->refcount > 0);
- buf->refcount--;
-
- obj->oa.samples_head = NULL;
-
- reap_old_sample_buffers(brw);
-}
-
-static bool
-inc_n_oa_users(struct brw_context *brw)
-{
- if (brw->perfquery.n_oa_users == 0 &&
- drmIoctl(brw->perfquery.oa_stream_fd,
- I915_PERF_IOCTL_ENABLE, 0) < 0)
- {
- return false;
- }
- ++brw->perfquery.n_oa_users;
-
- return true;
-}
-
-static void
-dec_n_oa_users(struct brw_context *brw)
-{
- /* Disabling the i915 perf stream will effectively disable the OA
- * counters. Note it's important to be sure there are no outstanding
- * MI_RPC commands at this point since they could stall the CS
- * indefinitely once OACONTROL is disabled.
- */
- --brw->perfquery.n_oa_users;
- if (brw->perfquery.n_oa_users == 0 &&
- drmIoctl(brw->perfquery.oa_stream_fd, I915_PERF_IOCTL_DISABLE, 0) < 0)
- {
- DBG("WARNING: Error disabling i915 perf stream: %m\n");
- }
-}
-
-/* In general if we see anything spurious while accumulating results,
- * we don't try and continue accumulating the current query, hoping
- * for the best, we scrap anything outstanding, and then hope for the
- * best with new queries.
- */
-static void
-discard_all_queries(struct brw_context *brw)
-{
- while (brw->perfquery.unaccumulated_elements) {
- struct brw_perf_query_object *obj = brw->perfquery.unaccumulated[0];
-
- obj->oa.results_accumulated = true;
- drop_from_unaccumulated_query_list(brw, brw->perfquery.unaccumulated[0]);
-
- dec_n_oa_users(brw);
- }
-}
-
enum OaReadStatus {
OA_READ_STATUS_ERROR,
OA_READ_STATUS_UNFINISHED,
OA_READ_STATUS_FINISHED,
};
-static enum OaReadStatus
-read_oa_samples_until(struct brw_context *brw,
- uint32_t start_timestamp,
- uint32_t end_timestamp)
-{
- struct exec_node *tail_node =
- exec_list_get_tail(&brw->perfquery.sample_buffers);
- struct brw_oa_sample_buf *tail_buf =
- exec_node_data(struct brw_oa_sample_buf, tail_node, link);
- uint32_t last_timestamp = tail_buf->last_timestamp;
-
- while (1) {
- struct brw_oa_sample_buf *buf = get_free_sample_buf(brw);
- uint32_t offset;
- int len;
-
- while ((len = read(brw->perfquery.oa_stream_fd, buf->buf,
- sizeof(buf->buf))) < 0 && errno == EINTR)
- ;
-
- if (len <= 0) {
- exec_list_push_tail(&brw->perfquery.free_sample_buffers, &buf->link);
-
- if (len < 0) {
- if (errno == EAGAIN)
- return ((last_timestamp - start_timestamp) >=
- (end_timestamp - start_timestamp)) ?
- OA_READ_STATUS_FINISHED :
- OA_READ_STATUS_UNFINISHED;
- else {
- DBG("Error reading i915 perf samples: %m\n");
- }
- } else
- DBG("Spurious EOF reading i915 perf samples\n");
-
- return OA_READ_STATUS_ERROR;
- }
-
- buf->len = len;
- exec_list_push_tail(&brw->perfquery.sample_buffers, &buf->link);
-
- /* Go through the reports and update the last timestamp. */
- offset = 0;
- while (offset < buf->len) {
- const struct drm_i915_perf_record_header *header =
- (const struct drm_i915_perf_record_header *) &buf->buf[offset];
- uint32_t *report = (uint32_t *) (header + 1);
-
- if (header->type == DRM_I915_PERF_RECORD_SAMPLE)
- last_timestamp = report[1];
-
- offset += header->size;
- }
-
- buf->last_timestamp = last_timestamp;
- }
-
- unreachable("not reached");
- return OA_READ_STATUS_ERROR;
-}
-
-/**
- * Try to read all the reports until either the delimiting timestamp
- * or an error arises.
- */
-static bool
-read_oa_samples_for_query(struct brw_context *brw,
- struct brw_perf_query_object *obj)
-{
- uint32_t *start;
- uint32_t *last;
- uint32_t *end;
-
- /* We need the MI_REPORT_PERF_COUNT to land before we can start
- * accumulate. */
- assert(!brw_batch_references(&brw->batch, obj->oa.bo) &&
- !brw_bo_busy(obj->oa.bo));
-
- /* Map the BO once here and let accumulate_oa_reports() unmap
- * it. */
- if (obj->oa.map == NULL)
- obj->oa.map = brw_bo_map(brw, obj->oa.bo, MAP_READ);
-
- start = last = obj->oa.map;
- end = obj->oa.map + MI_RPC_BO_END_OFFSET_BYTES;
-
- if (start[0] != obj->oa.begin_report_id) {
- DBG("Spurious start report id=%"PRIu32"\n", start[0]);
- return true;
- }
- if (end[0] != (obj->oa.begin_report_id + 1)) {
- DBG("Spurious end report id=%"PRIu32"\n", end[0]);
- return true;
- }
-
- /* Read the reports until the end timestamp. */
- switch (read_oa_samples_until(brw, start[1], end[1])) {
- case OA_READ_STATUS_ERROR:
- /* Fallthrough and let accumulate_oa_reports() deal with the
- * error. */
- case OA_READ_STATUS_FINISHED:
- return true;
- case OA_READ_STATUS_UNFINISHED:
- return false;
- }
-
- unreachable("invalid read status");
- return false;
-}
-
-/**
- * Accumulate raw OA counter values based on deltas between pairs of
- * OA reports.
- *
- * Accumulation starts from the first report captured via
- * MI_REPORT_PERF_COUNT (MI_RPC) by brw_begin_perf_query() until the
- * last MI_RPC report requested by brw_end_perf_query(). Between these
- * two reports there may also some number of periodically sampled OA
- * reports collected via the i915 perf interface - depending on the
- * duration of the query.
- *
- * These periodic snapshots help to ensure we handle counter overflow
- * correctly by being frequent enough to ensure we don't miss multiple
- * overflows of a counter between snapshots. For Gen8+ the i915 perf
- * snapshots provide the extra context-switch reports that let us
- * subtract out the progress of counters associated with other
- * contexts running on the system.
- */
-static void
-accumulate_oa_reports(struct brw_context *brw,
- struct brw_perf_query_object *obj)
-{
- const struct gen_device_info *devinfo = &brw->screen->devinfo;
- struct gl_perf_query_object *o = &obj->base;
- uint32_t *start;
- uint32_t *last;
- uint32_t *end;
- struct exec_node *first_samples_node;
- bool in_ctx = true;
- int out_duration = 0;
-
- assert(o->Ready);
- assert(obj->oa.map != NULL);
-
- start = last = obj->oa.map;
- end = obj->oa.map + MI_RPC_BO_END_OFFSET_BYTES;
-
- if (start[0] != obj->oa.begin_report_id) {
- DBG("Spurious start report id=%"PRIu32"\n", start[0]);
- goto error;
- }
- if (end[0] != (obj->oa.begin_report_id + 1)) {
- DBG("Spurious end report id=%"PRIu32"\n", end[0]);
- goto error;
- }
-
- /* See if we have any periodic reports to accumulate too... */
-
- /* N.B. The oa.samples_head was set when the query began and
- * pointed to the tail of the brw->perfquery.sample_buffers list at
- * the time the query started. Since the buffer existed before the
- * first MI_REPORT_PERF_COUNT command was emitted we therefore know
- * that no data in this particular node's buffer can possibly be
- * associated with the query - so skip ahead one...
- */
- first_samples_node = obj->oa.samples_head->next;
-
- foreach_list_typed_from(struct brw_oa_sample_buf, buf, link,
- &brw->perfquery.sample_buffers,
- first_samples_node)
- {
- int offset = 0;
-
- while (offset < buf->len) {
- const struct drm_i915_perf_record_header *header =
- (const struct drm_i915_perf_record_header *)(buf->buf + offset);
-
- assert(header->size != 0);
- assert(header->size <= buf->len);
-
- offset += header->size;
-
- switch (header->type) {
- case DRM_I915_PERF_RECORD_SAMPLE: {
- uint32_t *report = (uint32_t *)(header + 1);
- bool add = true;
-
- /* Ignore reports that come before the start marker.
- * (Note: takes care to allow overflow of 32bit timestamps)
- */
- if (gen_device_info_timebase_scale(devinfo,
- report[1] - start[1]) > 5000000000) {
- continue;
- }
-
- /* Ignore reports that come after the end marker.
- * (Note: takes care to allow overflow of 32bit timestamps)
- */
- if (gen_device_info_timebase_scale(devinfo,
- report[1] - end[1]) <= 5000000000) {
- goto end;
- }
-
- /* For Gen8+ since the counters continue while other
- * contexts are running we need to discount any unrelated
- * deltas. The hardware automatically generates a report
- * on context switch which gives us a new reference point
- * to continuing adding deltas from.
- *
- * For Haswell we can rely on the HW to stop the progress
- * of OA counters while any other context is acctive.
- */
- if (devinfo->gen >= 8) {
- if (in_ctx && report[2] != obj->oa.result.hw_id) {
- DBG("i915 perf: Switch AWAY (observed by ID change)\n");
- in_ctx = false;
- out_duration = 0;
- } else if (in_ctx == false && report[2] == obj->oa.result.hw_id) {
- DBG("i915 perf: Switch TO\n");
- in_ctx = true;
-
- /* From experimentation in IGT, we found that the OA unit
- * might label some report as "idle" (using an invalid
- * context ID), right after a report for a given context.
- * Deltas generated by those reports actually belong to the
- * previous context, even though they're not labelled as
- * such.
- *
- * We didn't *really* Switch AWAY in the case that we e.g.
- * saw a single periodic report while idle...
- */
- if (out_duration >= 1)
- add = false;
- } else if (in_ctx) {
- assert(report[2] == obj->oa.result.hw_id);
- DBG("i915 perf: Continuation IN\n");
- } else {
- assert(report[2] != obj->oa.result.hw_id);
- DBG("i915 perf: Continuation OUT\n");
- add = false;
- out_duration++;
- }
- }
-
- if (add) {
- gen_perf_query_result_accumulate(&obj->oa.result, obj->query,
- last, report);
- }
-
- last = report;
-
- break;
- }
-
- case DRM_I915_PERF_RECORD_OA_BUFFER_LOST:
- DBG("i915 perf: OA error: all reports lost\n");
- goto error;
- case DRM_I915_PERF_RECORD_OA_REPORT_LOST:
- DBG("i915 perf: OA report lost\n");
- break;
- }
- }
- }
-
-end:
-
- gen_perf_query_result_accumulate(&obj->oa.result, obj->query,
- last, end);
-
- DBG("Marking %d accumulated - results gathered\n", o->Id);
-
- obj->oa.results_accumulated = true;
- drop_from_unaccumulated_query_list(brw, obj);
- dec_n_oa_users(brw);
-
- return;
-
-error:
-
- discard_all_queries(brw);
-}
-
/******************************************************************************/
-static bool
-open_i915_perf_oa_stream(struct brw_context *brw,
- int metrics_set_id,
- int report_format,
- int period_exponent,
- int drm_fd,
- uint32_t ctx_id)
-{
- uint64_t properties[] = {
- /* Single context sampling */
- DRM_I915_PERF_PROP_CTX_HANDLE, ctx_id,
-
- /* Include OA reports in samples */
- DRM_I915_PERF_PROP_SAMPLE_OA, true,
-
- /* OA unit configuration */
- DRM_I915_PERF_PROP_OA_METRICS_SET, metrics_set_id,
- DRM_I915_PERF_PROP_OA_FORMAT, report_format,
- DRM_I915_PERF_PROP_OA_EXPONENT, period_exponent,
- };
- struct drm_i915_perf_open_param param = {
- .flags = I915_PERF_FLAG_FD_CLOEXEC |
- I915_PERF_FLAG_FD_NONBLOCK |
- I915_PERF_FLAG_DISABLED,
- .num_properties = ARRAY_SIZE(properties) / 2,
- .properties_ptr = (uintptr_t) properties,
- };
- int fd = drmIoctl(drm_fd, DRM_IOCTL_I915_PERF_OPEN, ¶m);
- if (fd == -1) {
- DBG("Error opening i915 perf OA stream: %m\n");
- return false;
- }
-
- brw->perfquery.oa_stream_fd = fd;
-
- brw->perfquery.current_oa_metrics_set_id = metrics_set_id;
- brw->perfquery.current_oa_format = report_format;
-
- return true;
-}
-
-static void
-close_perf(struct brw_context *brw,
- const struct gen_perf_query_info *query)
-{
- if (brw->perfquery.oa_stream_fd != -1) {
- close(brw->perfquery.oa_stream_fd);
- brw->perfquery.oa_stream_fd = -1;
- }
- if (query->kind == GEN_PERF_QUERY_TYPE_RAW) {
- struct gen_perf_query_info *raw_query =
- (struct gen_perf_query_info *) query;
- raw_query->oa_metrics_set_id = 0;
- }
-}
-
static void
capture_frequency_stat_register(struct brw_context *brw,
struct brw_bo *bo,
struct gl_perf_query_object *o)
{
struct brw_context *brw = brw_context(ctx);
- struct brw_perf_query_object *obj = brw_perf_query(o);
- const struct gen_perf_query_info *query = obj->query;
+ struct brw_perf_query_object *brw_query = brw_perf_query(o);
+ struct gen_perf_query_object *obj = brw_query->query;
+ struct gen_perf_context *perf_ctx = brw->perf_ctx;
/* We can assume the frontend hides mistaken attempts to Begin a
* query object multiple times before its End. Similarly if an
DBG("Begin(%d)\n", o->Id);
- /* XXX: We have to consider that the command parser unit that parses batch
- * buffer commands and is used to capture begin/end counter snapshots isn't
- * implicitly synchronized with what's currently running across other GPU
- * units (such as the EUs running shaders) that the performance counters are
- * associated with.
- *
- * The intention of performance queries is to measure the work associated
- * with commands between the begin/end delimiters and so for that to be the
- * case we need to explicitly synchronize the parsing of commands to capture
- * Begin/End counter snapshots with what's running across other parts of the
- * GPU.
- *
- * When the command parser reaches a Begin marker it effectively needs to
- * drain everything currently running on the GPU until the hardware is idle
- * before capturing the first snapshot of counters - otherwise the results
- * would also be measuring the effects of earlier commands.
- *
- * When the command parser reaches an End marker it needs to stall until
- * everything currently running on the GPU has finished before capturing the
- * end snapshot - otherwise the results won't be a complete representation
- * of the work.
- *
- * Theoretically there could be opportunities to minimize how much of the
- * GPU pipeline is drained, or that we stall for, when we know what specific
- * units the performance counters being queried relate to but we don't
- * currently attempt to be clever here.
- *
- * Note: with our current simple approach here then for back-to-back queries
- * we will redundantly emit duplicate commands to synchronize the command
- * streamer with the rest of the GPU pipeline, but we assume that in HW the
- * second synchronization is effectively a NOOP.
- *
- * N.B. The final results are based on deltas of counters between (inside)
- * Begin/End markers so even though the total wall clock time of the
- * workload is stretched by larger pipeline bubbles the bubbles themselves
- * are generally invisible to the query results. Whether that's a good or a
- * bad thing depends on the use case. For a lower real-time impact while
- * capturing metrics then periodic sampling may be a better choice than
- * INTEL_performance_query.
- *
- *
- * This is our Begin synchronization point to drain current work on the
- * GPU before we capture our first counter snapshot...
- */
- brw_emit_mi_flush(brw);
-
- switch (query->kind) {
- case GEN_PERF_QUERY_TYPE_OA:
- case GEN_PERF_QUERY_TYPE_RAW: {
-
- /* Opening an i915 perf stream implies exclusive access to the OA unit
- * which will generate counter reports for a specific counter set with a
- * specific layout/format so we can't begin any OA based queries that
- * require a different counter set or format unless we get an opportunity
- * to close the stream and open a new one...
- */
- uint64_t metric_id = brw_perf_query_get_metric_id(brw, query);
-
- if (brw->perfquery.oa_stream_fd != -1 &&
- brw->perfquery.current_oa_metrics_set_id != metric_id) {
-
- if (brw->perfquery.n_oa_users != 0) {
- DBG("WARNING: Begin(%d) failed already using perf config=%i/%"PRIu64"\n",
- o->Id, brw->perfquery.current_oa_metrics_set_id, metric_id);
- return false;
- } else
- close_perf(brw, query);
- }
-
- /* If the OA counters aren't already on, enable them. */
- if (brw->perfquery.oa_stream_fd == -1) {
- __DRIscreen *screen = brw->screen->driScrnPriv;
- const struct gen_device_info *devinfo = &brw->screen->devinfo;
-
- /* The period_exponent gives a sampling period as follows:
- * sample_period = timestamp_period * 2^(period_exponent + 1)
- *
- * The timestamps increments every 80ns (HSW), ~52ns (GEN9LP) or
- * ~83ns (GEN8/9).
- *
- * The counter overflow period is derived from the EuActive counter
- * which reads a counter that increments by the number of clock
- * cycles multiplied by the number of EUs. It can be calculated as:
- *
- * 2^(number of bits in A counter) / (n_eus * max_gen_freq * 2)
- *
- * (E.g. 40 EUs @ 1GHz = ~53ms)
- *
- * We select a sampling period inferior to that overflow period to
- * ensure we cannot see more than 1 counter overflow, otherwise we
- * could loose information.
- */
-
- int a_counter_in_bits = 32;
- if (devinfo->gen >= 8)
- a_counter_in_bits = 40;
-
- uint64_t overflow_period = pow(2, a_counter_in_bits) /
- (brw->perfquery.perf->sys_vars.n_eus *
- /* drop 1GHz freq to have units in nanoseconds */
- 2);
-
- DBG("A counter overflow period: %"PRIu64"ns, %"PRIu64"ms (n_eus=%"PRIu64")\n",
- overflow_period, overflow_period / 1000000ul, brw->perfquery.perf->sys_vars.n_eus);
-
- int period_exponent = 0;
- uint64_t prev_sample_period, next_sample_period;
- for (int e = 0; e < 30; e++) {
- prev_sample_period = 1000000000ull * pow(2, e + 1) / devinfo->timestamp_frequency;
- next_sample_period = 1000000000ull * pow(2, e + 2) / devinfo->timestamp_frequency;
-
- /* Take the previous sampling period, lower than the overflow
- * period.
- */
- if (prev_sample_period < overflow_period &&
- next_sample_period > overflow_period)
- period_exponent = e + 1;
- }
-
- if (period_exponent == 0) {
- DBG("WARNING: enable to find a sampling exponent\n");
- return false;
- }
-
- DBG("OA sampling exponent: %i ~= %"PRIu64"ms\n", period_exponent,
- prev_sample_period / 1000000ul);
-
- if (!open_i915_perf_oa_stream(brw,
- metric_id,
- query->oa_format,
- period_exponent,
- screen->fd, /* drm fd */
- brw->hw_ctx))
- return false;
- } else {
- assert(brw->perfquery.current_oa_metrics_set_id == metric_id &&
- brw->perfquery.current_oa_format == query->oa_format);
- }
-
- if (!inc_n_oa_users(brw)) {
- DBG("WARNING: Error enabling i915 perf stream: %m\n");
- return false;
- }
-
- if (obj->oa.bo) {
- brw_bo_unreference(obj->oa.bo);
- obj->oa.bo = NULL;
- }
-
- obj->oa.bo =
- brw->perfquery.perf->vtbl.bo_alloc(brw->bufmgr,
- "perf. query OA MI_RPC bo",
- MI_RPC_BO_SIZE);
-#ifdef DEBUG
- /* Pre-filling the BO helps debug whether writes landed. */
- void *map = brw_bo_map(brw, obj->oa.bo, MAP_WRITE);
- memset(map, 0x80, MI_RPC_BO_SIZE);
- brw_bo_unmap(obj->oa.bo);
-#endif
-
- obj->oa.begin_report_id = brw->perfquery.next_query_start_report_id;
- brw->perfquery.next_query_start_report_id += 2;
-
- /* We flush the batchbuffer here to minimize the chances that MI_RPC
- * delimiting commands end up in different batchbuffers. If that's the
- * case, the measurement will include the time it takes for the kernel
- * scheduler to load a new request into the hardware. This is manifested in
- * tools like frameretrace by spikes in the "GPU Core Clocks" counter.
- */
- intel_batchbuffer_flush(brw);
-
- /* Take a starting OA counter snapshot. */
- brw->vtbl.emit_mi_report_perf_count(brw, obj->oa.bo, 0,
- obj->oa.begin_report_id);
- capture_frequency_stat_register(brw, obj->oa.bo, MI_FREQ_START_OFFSET_BYTES);
-
- ++brw->perfquery.n_active_oa_queries;
-
- /* No already-buffered samples can possibly be associated with this query
- * so create a marker within the list of sample buffers enabling us to
- * easily ignore earlier samples when processing this query after
- * completion.
- */
- assert(!exec_list_is_empty(&brw->perfquery.sample_buffers));
- obj->oa.samples_head = exec_list_get_tail(&brw->perfquery.sample_buffers);
-
- struct brw_oa_sample_buf *buf =
- exec_node_data(struct brw_oa_sample_buf, obj->oa.samples_head, link);
-
- /* This reference will ensure that future/following sample
- * buffers (that may relate to this query) can't be freed until
- * this drops to zero.
- */
- buf->refcount++;
-
- gen_perf_query_result_clear(&obj->oa.result);
- obj->oa.results_accumulated = false;
-
- add_to_unaccumulated_query_list(brw, obj);
- break;
- }
-
- case GEN_PERF_QUERY_TYPE_PIPELINE:
- if (obj->pipeline_stats.bo) {
- brw_bo_unreference(obj->pipeline_stats.bo);
- obj->pipeline_stats.bo = NULL;
- }
-
- obj->pipeline_stats.bo =
- brw->perfquery.perf->vtbl.bo_alloc(brw->bufmgr,
- "perf. query pipeline stats bo",
- STATS_BO_SIZE);
-
- /* Take starting snapshots. */
- snapshot_statistics_registers(brw, obj, 0);
-
- ++brw->perfquery.n_active_pipeline_stats_queries;
- break;
-
- default:
- unreachable("Unknown query type");
- break;
- }
+ gen_perf_begin_query(perf_ctx, obj);
if (INTEL_DEBUG & DEBUG_PERFMON)
dump_perf_queries(brw);
struct gl_perf_query_object *o)
{
struct brw_context *brw = brw_context(ctx);
- struct brw_perf_query_object *obj = brw_perf_query(o);
+ struct brw_perf_query_object *brw_query = brw_perf_query(o);
+ struct gen_perf_query_object *obj = brw_query->query;
+ struct gen_perf_context *perf_ctx = brw->perf_ctx;
DBG("End(%d)\n", o->Id);
-
- /* Ensure that the work associated with the queried commands will have
- * finished before taking our query end counter readings.
- *
- * For more details see comment in brw_begin_perf_query for
- * corresponding flush.
- */
- brw_emit_mi_flush(brw);
-
- switch (obj->query->kind) {
- case GEN_PERF_QUERY_TYPE_OA:
- case GEN_PERF_QUERY_TYPE_RAW:
-
- /* NB: It's possible that the query will have already been marked
- * as 'accumulated' if an error was seen while reading samples
- * from perf. In this case we mustn't try and emit a closing
- * MI_RPC command in case the OA unit has already been disabled
- */
- if (!obj->oa.results_accumulated) {
- /* Take an ending OA counter snapshot. */
- capture_frequency_stat_register(brw, obj->oa.bo, MI_FREQ_END_OFFSET_BYTES);
- brw->vtbl.emit_mi_report_perf_count(brw, obj->oa.bo,
- MI_RPC_BO_END_OFFSET_BYTES,
- obj->oa.begin_report_id + 1);
- }
-
- --brw->perfquery.n_active_oa_queries;
-
- /* NB: even though the query has now ended, it can't be accumulated
- * until the end MI_REPORT_PERF_COUNT snapshot has been written
- * to query->oa.bo
- */
- break;
-
- case GEN_PERF_QUERY_TYPE_PIPELINE:
- snapshot_statistics_registers(brw, obj,
- STATS_BO_END_OFFSET_BYTES);
- --brw->perfquery.n_active_pipeline_stats_queries;
- break;
-
- default:
- unreachable("Unknown query type");
- break;
- }
+ gen_perf_end_query(perf_ctx, obj);
}
static void
brw_wait_perf_query(struct gl_context *ctx, struct gl_perf_query_object *o)
{
struct brw_context *brw = brw_context(ctx);
- struct brw_perf_query_object *obj = brw_perf_query(o);
- struct brw_bo *bo = NULL;
+ struct brw_perf_query_object *brw_query = brw_perf_query(o);
+ struct gen_perf_query_object *obj = brw_query->query;
assert(!o->Ready);
- switch (obj->query->kind) {
- case GEN_PERF_QUERY_TYPE_OA:
- case GEN_PERF_QUERY_TYPE_RAW:
- bo = obj->oa.bo;
- break;
-
- case GEN_PERF_QUERY_TYPE_PIPELINE:
- bo = obj->pipeline_stats.bo;
- break;
-
- default:
- unreachable("Unknown query type");
- break;
- }
-
- if (bo == NULL)
- return;
-
- /* If the current batch references our results bo then we need to
- * flush first...
- */
- if (brw_batch_references(&brw->batch, bo))
- intel_batchbuffer_flush(brw);
-
- brw_bo_wait_rendering(bo);
-
- /* Due to a race condition between the OA unit signaling report
- * availability and the report actually being written into memory,
- * we need to wait for all the reports to come in before we can
- * read them.
- */
- if (obj->query->kind == GEN_PERF_QUERY_TYPE_OA ||
- obj->query->kind == GEN_PERF_QUERY_TYPE_RAW) {
- while (!read_oa_samples_for_query(brw, obj))
- ;
- }
+ gen_perf_wait_query(brw->perf_ctx, obj, &brw->batch);
}
static bool
struct gl_perf_query_object *o)
{
struct brw_context *brw = brw_context(ctx);
- struct brw_perf_query_object *obj = brw_perf_query(o);
+ struct brw_perf_query_object *brw_query = brw_perf_query(o);
+ struct gen_perf_query_object *obj = brw_query->query;
if (o->Ready)
return true;
- switch (obj->query->kind) {
- case GEN_PERF_QUERY_TYPE_OA:
- case GEN_PERF_QUERY_TYPE_RAW:
- return (obj->oa.results_accumulated ||
- (obj->oa.bo &&
- !brw_batch_references(&brw->batch, obj->oa.bo) &&
- !brw_bo_busy(obj->oa.bo) &&
- read_oa_samples_for_query(brw, obj)));
- case GEN_PERF_QUERY_TYPE_PIPELINE:
- return (obj->pipeline_stats.bo &&
- !brw_batch_references(&brw->batch, obj->pipeline_stats.bo) &&
- !brw_bo_busy(obj->pipeline_stats.bo));
-
- default:
- unreachable("Unknown query type");
- break;
- }
-
- return false;
-}
-
-static void
-read_slice_unslice_frequencies(struct brw_context *brw,
- struct brw_perf_query_object *obj)
-{
- const struct gen_device_info *devinfo = &brw->screen->devinfo;
- uint32_t *begin_report = obj->oa.map, *end_report = obj->oa.map + MI_RPC_BO_END_OFFSET_BYTES;
-
- gen_perf_query_result_read_frequencies(&obj->oa.result,
- devinfo, begin_report, end_report);
-}
-
-static void
-read_gt_frequency(struct brw_context *brw,
- struct brw_perf_query_object *obj)
-{
- const struct gen_device_info *devinfo = &brw->screen->devinfo;
- uint32_t start = *((uint32_t *)(obj->oa.map + MI_FREQ_START_OFFSET_BYTES)),
- end = *((uint32_t *)(obj->oa.map + MI_FREQ_END_OFFSET_BYTES));
-
- switch (devinfo->gen) {
- case 7:
- case 8:
- obj->oa.gt_frequency[0] = GET_FIELD(start, GEN7_RPSTAT1_CURR_GT_FREQ) * 50ULL;
- obj->oa.gt_frequency[1] = GET_FIELD(end, GEN7_RPSTAT1_CURR_GT_FREQ) * 50ULL;
- break;
- case 9:
- case 10:
- case 11:
- obj->oa.gt_frequency[0] = GET_FIELD(start, GEN9_RPSTAT0_CURR_GT_FREQ) * 50ULL / 3ULL;
- obj->oa.gt_frequency[1] = GET_FIELD(end, GEN9_RPSTAT0_CURR_GT_FREQ) * 50ULL / 3ULL;
- break;
- default:
- unreachable("unexpected gen");
- }
-
- /* Put the numbers into Hz. */
- obj->oa.gt_frequency[0] *= 1000000ULL;
- obj->oa.gt_frequency[1] *= 1000000ULL;
-}
-
-static int
-get_oa_counter_data(struct brw_context *brw,
- struct brw_perf_query_object *obj,
- size_t data_size,
- uint8_t *data)
-{
- struct gen_perf_config *perf = brw->perfquery.perf;
- const struct gen_perf_query_info *query = obj->query;
- int n_counters = query->n_counters;
- int written = 0;
-
- for (int i = 0; i < n_counters; i++) {
- const struct gen_perf_query_counter *counter = &query->counters[i];
- uint64_t *out_uint64;
- float *out_float;
- size_t counter_size = gen_perf_query_counter_get_size(counter);
-
- if (counter_size) {
- switch (counter->data_type) {
- case GEN_PERF_COUNTER_DATA_TYPE_UINT64:
- out_uint64 = (uint64_t *)(data + counter->offset);
- *out_uint64 =
- counter->oa_counter_read_uint64(perf, query,
- obj->oa.result.accumulator);
- break;
- case GEN_PERF_COUNTER_DATA_TYPE_FLOAT:
- out_float = (float *)(data + counter->offset);
- *out_float =
- counter->oa_counter_read_float(perf, query,
- obj->oa.result.accumulator);
- break;
- default:
- /* So far we aren't using uint32, double or bool32... */
- unreachable("unexpected counter data type");
- }
- written = counter->offset + counter_size;
- }
- }
-
- return written;
-}
-
-static int
-get_pipeline_stats_data(struct brw_context *brw,
- struct brw_perf_query_object *obj,
- size_t data_size,
- uint8_t *data)
-
-{
- const struct gen_perf_query_info *query = obj->query;
- int n_counters = obj->query->n_counters;
- uint8_t *p = data;
-
- uint64_t *start = brw_bo_map(brw, obj->pipeline_stats.bo, MAP_READ);
- uint64_t *end = start + (STATS_BO_END_OFFSET_BYTES / sizeof(uint64_t));
-
- for (int i = 0; i < n_counters; i++) {
- const struct gen_perf_query_counter *counter = &query->counters[i];
- uint64_t value = end[i] - start[i];
-
- if (counter->pipeline_stat.numerator !=
- counter->pipeline_stat.denominator) {
- value *= counter->pipeline_stat.numerator;
- value /= counter->pipeline_stat.denominator;
- }
-
- *((uint64_t *)p) = value;
- p += 8;
- }
-
- brw_bo_unmap(obj->pipeline_stats.bo);
-
- return p - data;
+ return gen_perf_is_query_ready(brw->perf_ctx, obj, &brw->batch);
}
/**
GLuint *bytes_written)
{
struct brw_context *brw = brw_context(ctx);
- struct brw_perf_query_object *obj = brw_perf_query(o);
- int written = 0;
+ struct brw_perf_query_object *brw_query = brw_perf_query(o);
+ struct gen_perf_query_object *obj = brw_query->query;
assert(brw_is_perf_query_ready(ctx, o));
*/
assert(o->Ready);
- switch (obj->query->kind) {
- case GEN_PERF_QUERY_TYPE_OA:
- case GEN_PERF_QUERY_TYPE_RAW:
- if (!obj->oa.results_accumulated) {
- read_gt_frequency(brw, obj);
- read_slice_unslice_frequencies(brw, obj);
- accumulate_oa_reports(brw, obj);
- assert(obj->oa.results_accumulated);
-
- brw_bo_unmap(obj->oa.bo);
- obj->oa.map = NULL;
- }
- if (obj->query->kind == GEN_PERF_QUERY_TYPE_OA) {
- written = get_oa_counter_data(brw, obj, data_size, (uint8_t *)data);
- } else {
- const struct gen_device_info *devinfo = &brw->screen->devinfo;
-
- written = gen_perf_query_result_write_mdapi((uint8_t *)data, data_size,
- devinfo, &obj->oa.result,
- obj->oa.gt_frequency[0],
- obj->oa.gt_frequency[1]);
- }
- break;
-
- case GEN_PERF_QUERY_TYPE_PIPELINE:
- written = get_pipeline_stats_data(brw, obj, data_size, (uint8_t *)data);
- break;
-
- default:
- unreachable("Unknown query type");
- break;
- }
-
- if (bytes_written)
- *bytes_written = written;
+ gen_perf_get_query_data(brw->perf_ctx, obj,
+ data_size, data, bytes_written);
}
static struct gl_perf_query_object *
brw_new_perf_query_object(struct gl_context *ctx, unsigned query_index)
{
struct brw_context *brw = brw_context(ctx);
- const struct gen_perf_query_info *query =
- &brw->perfquery.perf->queries[query_index];
- struct brw_perf_query_object *obj =
- calloc(1, sizeof(struct brw_perf_query_object));
-
- if (!obj)
+ struct gen_perf_context *perf_ctx = brw->perf_ctx;
+ struct gen_perf_query_object * obj = gen_perf_new_query(perf_ctx, query_index);
+ if (unlikely(!obj))
return NULL;
- obj->query = query;
-
- brw->perfquery.n_query_instances++;
+ struct brw_perf_query_object *brw_query = calloc(1, sizeof(struct brw_perf_query_object));
+ if (unlikely(!brw_query)) {
+ gen_perf_delete_query(perf_ctx, obj);
+ return NULL;
+ }
- return &obj->base;
+ brw_query->query = obj;
+ return &brw_query->base;
}
/**
struct gl_perf_query_object *o)
{
struct brw_context *brw = brw_context(ctx);
- struct brw_perf_query_object *obj = brw_perf_query(o);
+ struct brw_perf_query_object *brw_query = brw_perf_query(o);
+ struct gen_perf_query_object *obj = brw_query->query;
+ struct gen_perf_context *perf_ctx = brw->perf_ctx;
/* We can assume that the frontend waits for a query to complete
* before ever calling into here, so we don't have to worry about
DBG("Delete(%d)\n", o->Id);
- switch (obj->query->kind) {
- case GEN_PERF_QUERY_TYPE_OA:
- case GEN_PERF_QUERY_TYPE_RAW:
- if (obj->oa.bo) {
- if (!obj->oa.results_accumulated) {
- drop_from_unaccumulated_query_list(brw, obj);
- dec_n_oa_users(brw);
- }
-
- brw_bo_unreference(obj->oa.bo);
- obj->oa.bo = NULL;
- }
-
- obj->oa.results_accumulated = false;
- break;
-
- case GEN_PERF_QUERY_TYPE_PIPELINE:
- if (obj->pipeline_stats.bo) {
- brw_bo_unreference(obj->pipeline_stats.bo);
- obj->pipeline_stats.bo = NULL;
- }
- break;
-
- default:
- unreachable("Unknown query type");
- break;
- }
-
- /* As an indication that the INTEL_performance_query extension is no
- * longer in use, it's a good time to free our cache of sample
- * buffers and close any current i915-perf stream.
- */
- if (--brw->perfquery.n_query_instances == 0) {
- free_sample_bufs(brw);
- close_perf(brw, obj->query);
- }
-
- free(obj);
+ gen_perf_delete_query(perf_ctx, obj);
+ free(brw_query);
}
/******************************************************************************/
-
-static void
-init_pipeline_statistic_query_registers(struct brw_context *brw)
-{
- const struct gen_device_info *devinfo = &brw->screen->devinfo;
- struct gen_perf_config *perf = brw->perfquery.perf;
- struct gen_perf_query_info *query =
- gen_perf_query_append_query_info(perf, MAX_STAT_COUNTERS);
-
- query->kind = GEN_PERF_QUERY_TYPE_PIPELINE;
- query->name = "Pipeline Statistics Registers";
-
- gen_perf_query_info_add_basic_stat_reg(query, IA_VERTICES_COUNT,
- "N vertices submitted");
- gen_perf_query_info_add_basic_stat_reg(query, IA_PRIMITIVES_COUNT,
- "N primitives submitted");
- gen_perf_query_info_add_basic_stat_reg(query, VS_INVOCATION_COUNT,
- "N vertex shader invocations");
-
- if (devinfo->gen == 6) {
- gen_perf_query_info_add_stat_reg(query, GEN6_SO_PRIM_STORAGE_NEEDED, 1, 1,
- "SO_PRIM_STORAGE_NEEDED",
- "N geometry shader stream-out primitives (total)");
- gen_perf_query_info_add_stat_reg(query, GEN6_SO_NUM_PRIMS_WRITTEN, 1, 1,
- "SO_NUM_PRIMS_WRITTEN",
- "N geometry shader stream-out primitives (written)");
- } else {
- gen_perf_query_info_add_stat_reg(query, GEN7_SO_PRIM_STORAGE_NEEDED(0), 1, 1,
- "SO_PRIM_STORAGE_NEEDED (Stream 0)",
- "N stream-out (stream 0) primitives (total)");
- gen_perf_query_info_add_stat_reg(query, GEN7_SO_PRIM_STORAGE_NEEDED(1), 1, 1,
- "SO_PRIM_STORAGE_NEEDED (Stream 1)",
- "N stream-out (stream 1) primitives (total)");
- gen_perf_query_info_add_stat_reg(query, GEN7_SO_PRIM_STORAGE_NEEDED(2), 1, 1,
- "SO_PRIM_STORAGE_NEEDED (Stream 2)",
- "N stream-out (stream 2) primitives (total)");
- gen_perf_query_info_add_stat_reg(query, GEN7_SO_PRIM_STORAGE_NEEDED(3), 1, 1,
- "SO_PRIM_STORAGE_NEEDED (Stream 3)",
- "N stream-out (stream 3) primitives (total)");
- gen_perf_query_info_add_stat_reg(query, GEN7_SO_NUM_PRIMS_WRITTEN(0), 1, 1,
- "SO_NUM_PRIMS_WRITTEN (Stream 0)",
- "N stream-out (stream 0) primitives (written)");
- gen_perf_query_info_add_stat_reg(query, GEN7_SO_NUM_PRIMS_WRITTEN(1), 1, 1,
- "SO_NUM_PRIMS_WRITTEN (Stream 1)",
- "N stream-out (stream 1) primitives (written)");
- gen_perf_query_info_add_stat_reg(query, GEN7_SO_NUM_PRIMS_WRITTEN(2), 1, 1,
- "SO_NUM_PRIMS_WRITTEN (Stream 2)",
- "N stream-out (stream 2) primitives (written)");
- gen_perf_query_info_add_stat_reg(query, GEN7_SO_NUM_PRIMS_WRITTEN(3), 1, 1,
- "SO_NUM_PRIMS_WRITTEN (Stream 3)",
- "N stream-out (stream 3) primitives (written)");
- }
-
- gen_perf_query_info_add_basic_stat_reg(query, HS_INVOCATION_COUNT,
- "N TCS shader invocations");
- gen_perf_query_info_add_basic_stat_reg(query, DS_INVOCATION_COUNT,
- "N TES shader invocations");
-
- gen_perf_query_info_add_basic_stat_reg(query, GS_INVOCATION_COUNT,
- "N geometry shader invocations");
- gen_perf_query_info_add_basic_stat_reg(query, GS_PRIMITIVES_COUNT,
- "N geometry shader primitives emitted");
-
- gen_perf_query_info_add_basic_stat_reg(query, CL_INVOCATION_COUNT,
- "N primitives entering clipping");
- gen_perf_query_info_add_basic_stat_reg(query, CL_PRIMITIVES_COUNT,
- "N primitives leaving clipping");
-
- if (devinfo->is_haswell || devinfo->gen == 8) {
- gen_perf_query_info_add_stat_reg(query, PS_INVOCATION_COUNT, 1, 4,
- "N fragment shader invocations",
- "N fragment shader invocations");
- } else {
- gen_perf_query_info_add_basic_stat_reg(query, PS_INVOCATION_COUNT,
- "N fragment shader invocations");
- }
-
- gen_perf_query_info_add_basic_stat_reg(query, PS_DEPTH_COUNT,
- "N z-pass fragments");
-
- if (devinfo->gen >= 7) {
- gen_perf_query_info_add_basic_stat_reg(query, CS_INVOCATION_COUNT,
- "N compute shader invocations");
- }
-
- query->data_size = sizeof(uint64_t) * query->n_counters;
-}
-
/* gen_device_info will have incorrect default topology values for unsupported kernels.
* verify kernel support to ensure OA metrics are accurate.
*/
return brw_bo_alloc(bufmgr, name, size, BRW_MEMZONE_OTHER);
}
-static unsigned
-brw_init_perf_query_info(struct gl_context *ctx)
+static void
+brw_oa_emit_mi_report_perf_count(void *c,
+ void *bo,
+ uint32_t offset_in_bytes,
+ uint32_t report_id)
{
- struct brw_context *brw = brw_context(ctx);
- const struct gen_device_info *devinfo = &brw->screen->devinfo;
- __DRIscreen *screen = brw->screen->driScrnPriv;
-
- if (brw->perfquery.perf)
- return brw->perfquery.perf->n_queries;
+ struct brw_context *ctx = c;
+ ctx->vtbl.emit_mi_report_perf_count(ctx,
+ bo,
+ offset_in_bytes,
+ report_id);
+}
- brw->perfquery.perf = gen_perf_new(brw);
+typedef void (*bo_unreference_t)(void *);
+typedef void *(*bo_map_t)(void *, void *, unsigned flags);
+typedef void (*bo_unmap_t)(void *);
+typedef void (* emit_mi_report_t)(void *, void *, uint32_t, uint32_t);
+typedef void (*emit_mi_flush_t)(void *);
- struct gen_perf_config *perf_cfg = brw->perfquery.perf;
- perf_cfg->vtbl.bo_alloc = brw_oa_bo_alloc;
-
- init_pipeline_statistic_query_registers(brw);
- brw_perf_query_register_mdapi_statistic_query(brw);
+static void
+brw_oa_batchbuffer_flush(void *c, const char *file, int line)
+{
+ struct brw_context *ctx = c;
+ _intel_batchbuffer_flush_fence(ctx, -1, NULL, file, line);
+}
- if ((oa_metrics_kernel_support(screen->fd, devinfo)) &&
- (gen_perf_load_oa_metrics(brw->perfquery.perf, screen->fd, devinfo)))
- brw_perf_query_register_mdapi_oa_query(brw);
+typedef void (*capture_frequency_stat_register_t)(void *, void *, uint32_t );
+typedef void (*store_register_mem64_t)(void *ctx, void *bo,
+ uint32_t reg, uint32_t offset);
+typedef bool (*batch_references_t)(void *batch, void *bo);
+typedef void (*bo_wait_rendering_t)(void *bo);
+typedef int (*bo_busy_t)(void *bo);
- brw->perfquery.unaccumulated =
- ralloc_array(brw, struct brw_perf_query_object *, 2);
- brw->perfquery.unaccumulated_elements = 0;
- brw->perfquery.unaccumulated_array_size = 2;
+static unsigned
+brw_init_perf_query_info(struct gl_context *ctx)
+{
+ struct brw_context *brw = brw_context(ctx);
+ const struct gen_device_info *devinfo = &brw->screen->devinfo;
- exec_list_make_empty(&brw->perfquery.sample_buffers);
- exec_list_make_empty(&brw->perfquery.free_sample_buffers);
+ struct gen_perf_context *perf_ctx = brw->perf_ctx;
+ struct gen_perf_config *perf_cfg = gen_perf_config(perf_ctx);
- /* It's convenient to guarantee that this linked list of sample
- * buffers is never empty so we add an empty head so when we
- * Begin an OA query we can always take a reference on a buffer
- * in this list.
- */
- struct brw_oa_sample_buf *buf = get_free_sample_buf(brw);
- exec_list_push_head(&brw->perfquery.sample_buffers, &buf->link);
+ if (perf_cfg)
+ return perf_cfg->n_queries;
- brw->perfquery.oa_stream_fd = -1;
+ if (!oa_metrics_kernel_support(brw->screen->driScrnPriv->fd, devinfo))
+ return 0;
- brw->perfquery.next_query_start_report_id = 1000;
+ perf_cfg = gen_perf_new(ctx);
- return brw->perfquery.perf->n_queries;
+ perf_cfg->vtbl.bo_alloc = brw_oa_bo_alloc;
+ perf_cfg->vtbl.bo_unreference = (bo_unreference_t)brw_bo_unreference;
+ perf_cfg->vtbl.bo_map = (bo_map_t)brw_bo_map;
+ perf_cfg->vtbl.bo_unmap = (bo_unmap_t)brw_bo_unmap;
+ perf_cfg->vtbl.emit_mi_flush = (emit_mi_flush_t)brw_emit_mi_flush;
+ perf_cfg->vtbl.emit_mi_report_perf_count =
+ (emit_mi_report_t)brw_oa_emit_mi_report_perf_count;
+ perf_cfg->vtbl.batchbuffer_flush = brw_oa_batchbuffer_flush;
+ perf_cfg->vtbl.capture_frequency_stat_register =
+ (capture_frequency_stat_register_t) capture_frequency_stat_register;
+ perf_cfg->vtbl.store_register_mem64 =
+ (store_register_mem64_t) brw_store_register_mem64;
+ perf_cfg->vtbl.batch_references = (batch_references_t)brw_batch_references;
+ perf_cfg->vtbl.bo_wait_rendering = (bo_wait_rendering_t)brw_bo_wait_rendering;
+ perf_cfg->vtbl.bo_busy = (bo_busy_t)brw_bo_busy;
+
+ gen_perf_init_context(perf_ctx, perf_cfg, brw, brw->bufmgr, devinfo,
+ brw->hw_ctx, brw->screen->driScrnPriv->fd);
+ gen_perf_init_metrics(perf_cfg, devinfo, brw->screen->driScrnPriv->fd);
+
+ return perf_cfg->n_queries;
}
void
projects / mesa.git / blobdiff