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intel/perf: move perf-related state into gen_perf_context

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To move more operations into intel/perf, several state items are
needed.  Save references to that state in the perf_ctxt, rather than
passing them in for every operation.

This commit includes an initializer for gen_perf_context, to set those
references and also encapsulate the initialization of the sample
buffer state.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Mark Janes
2019-08-06 10:00:16 -07:00
parent df18acee78
commit 52d3db9ab6
3 changed files with 80 additions and 49 deletions
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36
src/intel/perf/gen_perf.c
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@@ -991,3 +991,39 @@ gen_perf_dec_n_users(struct gen_perf_context *perf_ctx)
DBG("WARNING: Error disabling gen perf stream: %m\n");
}
}
void
gen_perf_init_context(struct gen_perf_context *perf_ctx,
struct gen_perf_config *perf_cfg,
void * ctx, /* driver context (eg, brw_context) */
void * bufmgr, /* eg brw_bufmgr */
const struct gen_device_info *devinfo,
uint32_t hw_ctx,
int drm_fd)
{
perf_ctx->perf = perf_cfg;
perf_ctx->ctx = ctx;
perf_ctx->bufmgr = bufmgr;
perf_ctx->drm_fd = drm_fd;
perf_ctx->hw_ctx = hw_ctx;
perf_ctx->devinfo = devinfo;
perf_ctx->unaccumulated =
ralloc_array(ctx, struct gen_perf_query_object *, 2);
perf_ctx->unaccumulated_elements = 0;
perf_ctx->unaccumulated_array_size = 2;
exec_list_make_empty(&perf_ctx->sample_buffers);
exec_list_make_empty(&perf_ctx->free_sample_buffers);
/* 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 oa_sample_buf *buf = gen_perf_get_free_sample_buf(perf_ctx);
exec_list_push_head(&perf_ctx->sample_buffers, &buf->link);
perf_ctx->oa_stream_fd = -1;
perf_ctx->next_query_start_report_id = 1000;
}