From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3FAA710E09F for ; Sat, 13 May 2023 02:53:11 +0000 (UTC) Date: Fri, 12 May 2023 19:52:56 -0700 Message-ID: <878rdtdjsn.wl-ashutosh.dixit@intel.com> From: "Dixit, Ashutosh" To: Umesh Nerlige Ramappa In-Reply-To: <20230513022234.2832233-4-umesh.nerlige.ramappa@intel.com> References: <20230513022234.2832233-1-umesh.nerlige.ramappa@intel.com> <20230513022234.2832233-4-umesh.nerlige.ramappa@intel.com> MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII Subject: Re: [igt-dev] [PATCH i-g-t 03/15] perf_pmu: Support multi-tile in frequency subtest List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: igt-dev@lists.freedesktop.org Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: On Fri, 12 May 2023 19:22:22 -0700, Umesh Nerlige Ramappa wrote: > > From: Tvrtko Ursulin > > Simple conversion to run the frequency tests per each tile, as dynamic > subtests, picking the correct engine to stimulate each. > > v2: Added new intel_ctx_t implementation for frequency subtest. > v3: Replace distance query with mtl specific static mapping > v4: Break as soon as you find one engine in gt > v5: Use gem_list_engines() and drop unnecessary code (Ashutosh) Reviewed-by: Ashutosh Dixit > > Signed-off-by: Tvrtko Ursulin > Signed-off-by: Arjun Melkaveri (v2) > Signed-off-by: Umesh Nerlige Ramappa > --- > tests/i915/perf_pmu.c | 128 ++++++++++++++++++++++++++++-------------- > 1 file changed, 86 insertions(+), 42 deletions(-) > > diff --git a/tests/i915/perf_pmu.c b/tests/i915/perf_pmu.c > index 44e59aaf7..155fc5f48 100644 > --- a/tests/i915/perf_pmu.c > +++ b/tests/i915/perf_pmu.c > @@ -238,19 +238,6 @@ static igt_spin_t *spin_sync(int fd, uint64_t ahnd, const intel_ctx_t *ctx, > return __spin_sync(fd, ahnd, ctx, e); > } > > -static igt_spin_t *spin_sync_flags(int fd, uint64_t ahnd, > - const intel_ctx_t *ctx, unsigned int flags) > -{ > - struct intel_execution_engine2 e = { }; > - > - e.class = gem_execbuf_flags_to_engine_class(flags); > - e.instance = (flags & (I915_EXEC_BSD_MASK | I915_EXEC_RING_MASK)) == > - (I915_EXEC_BSD | I915_EXEC_BSD_RING2) ? 1 : 0; > - e.flags = flags; > - > - return spin_sync(fd, ahnd, ctx, &e); > -} > - > static void end_spin(int fd, igt_spin_t *spin, unsigned int flags) > { > if (!spin) > @@ -1539,8 +1526,58 @@ test_interrupts_sync(int gem_fd) > igt_assert_lte(target, busy); > } > > +static struct i915_engine_class_instance > +find_dword_engine(int i915, const unsigned int gt) > +{ > + struct i915_engine_class_instance *engines, ci = { -1, -1 }; > + unsigned int i, count; > + > + engines = gem_list_engines(i915, 1u << gt, ~0u, &count); > + igt_assert(engines); > + > + for (i = 0; i < count; i++) { > + if (!gem_class_can_store_dword(i915, engines[i].engine_class)) > + continue; > + > + ci = engines[i]; > + break; > + } > + > + free(engines); > + > + return ci; > +} > + > +static igt_spin_t *spin_sync_gt(int i915, uint64_t ahnd, unsigned int gt, > + const intel_ctx_t **ctx) > +{ > + struct i915_engine_class_instance ci = { -1, -1 }; > + struct intel_execution_engine2 e = { }; > + > + ci = find_dword_engine(i915, gt); > + > + igt_require(ci.engine_class != (uint16_t)I915_ENGINE_CLASS_INVALID); > + > + if (gem_has_contexts(i915)) { > + e.class = ci.engine_class; > + e.instance = ci.engine_instance; > + e.flags = 0; > + *ctx = intel_ctx_create_for_engine(i915, e.class, e.instance); > + } else { > + igt_require(gt == 0); /* Impossible anyway. */ > + e.class = gem_execbuf_flags_to_engine_class(I915_EXEC_DEFAULT); > + e.instance = 0; > + e.flags = I915_EXEC_DEFAULT; > + *ctx = intel_ctx_0(i915); > + } > + > + igt_debug("Using engine %u:%u\n", e.class, e.instance); > + > + return spin_sync(i915, ahnd, *ctx, &e); > +} > + > static void > -test_frequency(int gem_fd) > +test_frequency(int gem_fd, unsigned int gt) > { > uint32_t min_freq, max_freq, boost_freq; > uint64_t val[2], start[2], slept; > @@ -1548,13 +1585,14 @@ test_frequency(int gem_fd) > igt_spin_t *spin; > int fd[2], sysfs; > uint64_t ahnd = get_reloc_ahnd(gem_fd, 0); > + const intel_ctx_t *ctx; > > - sysfs = igt_sysfs_open(gem_fd); > + sysfs = igt_sysfs_gt_open(gem_fd, gt); > igt_require(sysfs >= 0); > > - min_freq = igt_sysfs_get_u32(sysfs, "gt_RPn_freq_mhz"); > - max_freq = igt_sysfs_get_u32(sysfs, "gt_RP0_freq_mhz"); > - boost_freq = igt_sysfs_get_u32(sysfs, "gt_boost_freq_mhz"); > + min_freq = igt_sysfs_get_u32(sysfs, "rps_RPn_freq_mhz"); > + max_freq = igt_sysfs_get_u32(sysfs, "rps_RP0_freq_mhz"); > + boost_freq = igt_sysfs_get_u32(sysfs, "rps_boost_freq_mhz"); > igt_info("Frequency: min=%u, max=%u, boost=%u MHz\n", > min_freq, max_freq, boost_freq); > igt_require(min_freq > 0 && max_freq > 0 && boost_freq > 0); > @@ -1567,15 +1605,15 @@ test_frequency(int gem_fd) > /* > * Set GPU to min frequency and read PMU counters. > */ > - igt_require(igt_sysfs_set_u32(sysfs, "gt_min_freq_mhz", min_freq)); > - igt_require(igt_sysfs_get_u32(sysfs, "gt_min_freq_mhz") == min_freq); > - igt_require(igt_sysfs_set_u32(sysfs, "gt_max_freq_mhz", min_freq)); > - igt_require(igt_sysfs_get_u32(sysfs, "gt_max_freq_mhz") == min_freq); > - igt_require(igt_sysfs_set_u32(sysfs, "gt_boost_freq_mhz", min_freq)); > - igt_require(igt_sysfs_get_u32(sysfs, "gt_boost_freq_mhz") == min_freq); > + igt_require(igt_sysfs_set_u32(sysfs, "rps_min_freq_mhz", min_freq)); > + igt_require(igt_sysfs_get_u32(sysfs, "rps_min_freq_mhz") == min_freq); > + igt_require(igt_sysfs_set_u32(sysfs, "rps_max_freq_mhz", min_freq)); > + igt_require(igt_sysfs_get_u32(sysfs, "rps_max_freq_mhz") == min_freq); > + igt_require(igt_sysfs_set_u32(sysfs, "rps_boost_freq_mhz", min_freq)); > + igt_require(igt_sysfs_get_u32(sysfs, "rps_boost_freq_mhz") == min_freq); > > gem_quiescent_gpu(gem_fd); /* Idle to be sure the change takes effect */ > - spin = spin_sync_flags(gem_fd, ahnd, 0, I915_EXEC_DEFAULT); > + spin = spin_sync_gt(gem_fd, ahnd, gt, &ctx); > > slept = pmu_read_multi(fd[0], 2, start); > measured_usleep(batch_duration_ns / 1000); > @@ -1584,6 +1622,7 @@ test_frequency(int gem_fd) > min[0] = 1e9*(val[0] - start[0]) / slept; > min[1] = 1e9*(val[1] - start[1]) / slept; > > + intel_ctx_destroy(gem_fd, ctx); > igt_spin_free(gem_fd, spin); > gem_quiescent_gpu(gem_fd); /* Don't leak busy bo into the next phase */ > > @@ -1592,16 +1631,16 @@ test_frequency(int gem_fd) > /* > * Set GPU to max frequency and read PMU counters. > */ > - igt_require(igt_sysfs_set_u32(sysfs, "gt_max_freq_mhz", max_freq)); > - igt_require(igt_sysfs_get_u32(sysfs, "gt_max_freq_mhz") == max_freq); > - igt_require(igt_sysfs_set_u32(sysfs, "gt_boost_freq_mhz", boost_freq)); > - igt_require(igt_sysfs_get_u32(sysfs, "gt_boost_freq_mhz") == boost_freq); > + igt_require(igt_sysfs_set_u32(sysfs, "rps_max_freq_mhz", max_freq)); > + igt_require(igt_sysfs_get_u32(sysfs, "rps_max_freq_mhz") == max_freq); > + igt_require(igt_sysfs_set_u32(sysfs, "rps_boost_freq_mhz", boost_freq)); > + igt_require(igt_sysfs_get_u32(sysfs, "rps_boost_freq_mhz") == boost_freq); > > - igt_require(igt_sysfs_set_u32(sysfs, "gt_min_freq_mhz", max_freq)); > - igt_require(igt_sysfs_get_u32(sysfs, "gt_min_freq_mhz") == max_freq); > + igt_require(igt_sysfs_set_u32(sysfs, "rps_min_freq_mhz", max_freq)); > + igt_require(igt_sysfs_get_u32(sysfs, "rps_min_freq_mhz") == max_freq); > > gem_quiescent_gpu(gem_fd); > - spin = spin_sync_flags(gem_fd, ahnd, 0, I915_EXEC_DEFAULT); > + spin = spin_sync_gt(gem_fd, ahnd, gt, &ctx); > > slept = pmu_read_multi(fd[0], 2, start); > measured_usleep(batch_duration_ns / 1000); > @@ -1610,16 +1649,17 @@ test_frequency(int gem_fd) > max[0] = 1e9*(val[0] - start[0]) / slept; > max[1] = 1e9*(val[1] - start[1]) / slept; > > + intel_ctx_destroy(gem_fd, ctx); > igt_spin_free(gem_fd, spin); > gem_quiescent_gpu(gem_fd); > > /* > * Restore min/max. > */ > - igt_sysfs_set_u32(sysfs, "gt_min_freq_mhz", min_freq); > - if (igt_sysfs_get_u32(sysfs, "gt_min_freq_mhz") != min_freq) > + igt_sysfs_set_u32(sysfs, "rps_min_freq_mhz", min_freq); > + if (igt_sysfs_get_u32(sysfs, "rps_min_freq_mhz") != min_freq) > igt_warn("Unable to restore min frequency to saved value [%u MHz], now %u MHz\n", > - min_freq, igt_sysfs_get_u32(sysfs, "gt_min_freq_mhz")); > + min_freq, igt_sysfs_get_u32(sysfs, "rps_min_freq_mhz")); > close(fd[0]); > close(fd[1]); > put_ahnd(ahnd); > @@ -1638,17 +1678,17 @@ test_frequency(int gem_fd) > } > > static void > -test_frequency_idle(int gem_fd) > +test_frequency_idle(int gem_fd, unsigned int gt) > { > uint32_t min_freq; > uint64_t val[2], start[2], slept; > double idle[2]; > int fd[2], sysfs; > > - sysfs = igt_sysfs_open(gem_fd); > + sysfs = igt_sysfs_gt_open(gem_fd, gt); > igt_require(sysfs >= 0); > > - min_freq = igt_sysfs_get_u32(sysfs, "gt_RPn_freq_mhz"); > + min_freq = igt_sysfs_get_u32(sysfs, "rps_RPn_freq_mhz"); > close(sysfs); > > /* While parked, our convention is to report the GPU at 0Hz */ > @@ -2453,10 +2493,14 @@ igt_main > /** > * Test GPU frequency. > */ > - igt_subtest("frequency") > - test_frequency(fd); > - igt_subtest("frequency-idle") > - test_frequency_idle(fd); > + igt_subtest_with_dynamic("frequency") { > + i915_for_each_gt(fd, tmp, gt) { > + igt_dynamic_f("gt%u", gt) > + test_frequency(fd, gt); > + igt_dynamic_f("idle-gt%u", gt) > + test_frequency_idle(fd, gt); > + } > + } > > /** > * Test interrupt count reporting. > -- > 2.36.1 >