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intel/perf: add helper to compute metrics from counters

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The produced array tells use what metric to enable for a given pass.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2775>
This commit is contained in:
Lionel Landwerlin
2018-10-05 17:31:11 +01:00
parent a7890f559b
commit c36933e081
2 changed files with 34 additions and 0 deletions
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24
src/intel/perf/gen_perf.c
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@@ -821,6 +821,30 @@ gen_perf_get_n_passes(struct gen_perf_config *perf,
return __builtin_popcount(queries_mask);
}
void
gen_perf_get_counters_passes(struct gen_perf_config *perf,
const uint32_t *counter_indices,
uint32_t counter_indices_count,
struct gen_perf_counter_pass *counter_pass)
{
uint64_t queries_mask = get_passes_mask(perf, counter_indices, counter_indices_count);
uint32_t n_passes = __builtin_popcount(queries_mask);
for (uint32_t i = 0; i < counter_indices_count; i++) {
assert(counter_indices[i] < perf->n_counters);
uint32_t idx = counter_indices[i];
counter_pass[i].counter = perf->counters[idx];
uint32_t query_idx = ffsll(perf->counters[idx]->query_mask & queries_mask) - 1;
counter_pass[i].query = &perf->queries[query_idx];
uint32_t clear_bits = 63 - query_idx;
counter_pass[i].pass = __builtin_popcount((queries_mask << clear_bits) >> clear_bits) - 1;
assert(counter_pass[i].pass < n_passes);
}
}
/* Accumulate 32bits OA counters */
static inline void
accumulate_uint32(const uint32_t *report0,