From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 18C1910E06D for ; Tue, 14 Nov 2023 05:03:56 +0000 (UTC) Message-ID: <41b2060a-329c-44d1-a176-ff3e268c2571@intel.com> Date: Tue, 14 Nov 2023 10:33:45 +0530 To: Sujaritha Sundaresan , References: <20231114045224.622841-1-sujaritha.sundaresan@intel.com> <20231114045224.622841-6-sujaritha.sundaresan@intel.com> Content-Language: en-US From: Riana Tauro In-Reply-To: <20231114045224.622841-6-sujaritha.sundaresan@intel.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit MIME-Version: 1.0 Subject: Re: [igt-dev] [v3 5/6] tests/intel: Print drpc info for rc6_residency test List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: On 11/14/2023 10:22 AM, Sujaritha Sundaresan wrote: > Add dprc debug dump to help assertain if we are hitting > genuine rc6 failures. > > v3: Fix review comments (Riana) > > Signed-off-by: Sujaritha Sundaresan Looks good to me Reviewed-by: Riana Tauro > --- > tests/intel/i915_pm_rc6_residency.c | 51 ++++++++++++++++++++++------- > 1 file changed, 40 insertions(+), 11 deletions(-) > > diff --git a/tests/intel/i915_pm_rc6_residency.c b/tests/intel/i915_pm_rc6_residency.c > index 0f427687d..5687852cb 100644 > --- a/tests/intel/i915_pm_rc6_residency.c > +++ b/tests/intel/i915_pm_rc6_residency.c > @@ -36,6 +36,7 @@ > #include "i915/gem.h" > #include "i915/gem_create.h" > #include "igt.h" > +#include "igt_debugfs.h" > #include "igt_perf.h" > #include "igt_power.h" > #include "igt_sysfs.h" > @@ -63,6 +64,8 @@ > #define RC6P_ENABLED 2 > #define RC6PP_ENABLED 4 > > +char *drpc; > + > static int sysfs; > > struct residencies { > @@ -230,14 +233,25 @@ static uint64_t pmu_read_single(int fd) > return __pmu_read_single(fd, NULL); > } > > -#define __assert_within_epsilon(x, ref, tol_up, tol_down) \ > - igt_assert_f((x) <= (ref) * (1.0 + (tol_up)/100.) && \ > - (x) >= (ref) * (1.0 - (tol_down)/100.), \ > - "'%s' != '%s' (%.3g not within +%d%%/-%d%% tolerance of %.3g)\n",\ > - #x, #ref, (double)(x), (tol_up), (tol_down), (double)(ref)) > +#define __assert_within_epsilon(x, ref, tol_up, tol_down, debug_data) \ > + igt_assert_f((double)(x) <= (1.0 + (tol_up)) * (double)(ref) && \ > + (double)(x) >= (1.0 - (tol_down)) * (double)(ref), \ > + "'%s' != '%s' (%f not within +%.1f%%/-%.1f%% tolerance of %f)\n %s\n",\ > + #x, #ref, (double)(x), \ > + (tol_up) * 100.0, (tol_down) * 100.0, \ > + (double)(ref), debug_data) > + > +#define assert_within_epsilon(x, ref, tolerance, debug_data) \ > + __assert_within_epsilon(x, ref, tolerance, tolerance, debug_data) > + > +static char *get_drpc(int i915, int gt_id) > +{ > + int gt_dir; > > -#define assert_within_epsilon(x, ref, tolerance) \ > - __assert_within_epsilon(x, ref, tolerance, tolerance) > + gt_dir = igt_debugfs_gt_dir(i915, gt_id); > + igt_assert(gt_dir != -1); > + return igt_sysfs_get(gt_dir, "drpc"); > +} > > static bool __pmu_wait_for_rc6(int fd) > { > @@ -414,7 +428,9 @@ static void rc6_idle(int i915, uint32_t ctx_id, uint64_t flags, unsigned int gt) > "Total energy used while idle: %.1fmJ (%.1fmW)\n", > idle, (idle * 1e9) / slept); > } > - assert_within_epsilon(rc6, ts[1] - ts[0], 5); > + drpc = get_drpc(i915, gt); > + > + assert_within_epsilon(rc6, ts[1] - ts[0], 5, drpc); > > done = mmap(0, 4096, PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0); > > @@ -450,7 +466,12 @@ static void rc6_idle(int i915, uint32_t ctx_id, uint64_t flags, unsigned int gt) > igt_assert(cycles >= SLEEP_DURATION); > > /* While very nearly idle, expect full RC6 */ > - assert_within_epsilon(rc6, ts[1] - ts[0], tolerance); > + drpc = get_drpc(i915, gt); > + > + assert_within_epsilon(rc6, ts[1] - ts[0], tolerance, drpc); > + > + free(drpc); > + drpc = NULL; > } > > munmap(done, 4096); > @@ -503,7 +524,9 @@ static void rc6_fence(int i915, unsigned int gt) > "Total energy used while idle: %.1fmJ (%.1fmW)\n", > idle, (idle * 1e9) / slept); > } > - assert_within_epsilon(rc6, ts[1] - ts[0], 5); > + drpc = get_drpc(i915, gt); > + > + assert_within_epsilon(rc6, ts[1] - ts[0], 5, drpc); > > /* Submit but delay execution, we should be idle and conserving power */ > ctx = intel_ctx_create_for_gt(i915, gt); > @@ -544,8 +567,13 @@ static void rc6_fence(int i915, unsigned int gt) > > close(timeline); > > - assert_within_epsilon(rc6, ts[1] - ts[0], tolerance); > + drpc = get_drpc(i915, gt); > + > + assert_within_epsilon(rc6, ts[1] - ts[0], tolerance, drpc); > gem_quiescent_gpu(i915); > + > + free(drpc); > + drpc = NULL; > } > put_ahnd(ahnd); > intel_ctx_destroy(i915, ctx); > @@ -642,6 +670,7 @@ igt_main > } > > igt_fixture { > + free(drpc); > drm_close_driver(i915); > } > }