From patchwork Wed Oct 19 06:04:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Riana Tauro X-Patchwork-Id: 13011370 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1B15CC4332F for ; Wed, 19 Oct 2022 06:05:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1D9D810EA7A; Wed, 19 Oct 2022 06:05:09 +0000 (UTC) Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id CC72D10E415 for ; Wed, 19 Oct 2022 06:04:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666159478; x=1697695478; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=SnL0po/JOXVHg1aU+fGXha4LHuu2Dfgb44yuIKVLCII=; b=LmIR/G33i+otZZ8i0QSnLhkITarSJsCNUJs+vz2Mn8WmqE7GkuhX6U5A lR0zLU2yeBCy3EzSZvzcW4VECwZYc/HULhCjcdgEmpnq+apY/4MMPd0/8 BXKl6VGqcHHPvJEL8yJLjIARLF5ktGAX7WGcbcXJ80lcSQsr9nNx/vr8b d72IAnaD3SlDDP72xRo/Ko5Y3k0cQpotAWQNI/fwT1oMhgD40tCmVWHbc 7l+M1Uk1T4C0IP+0FnBKhCpA8aCbax/oSCcjkv+9cw/BW86MEgulefpIe wTbhumkiDi2aGYhoIn4yRFWJjtjjc7ce60ZqNM9ONmhsPHfAmUBcB9uVE w==; X-IronPort-AV: E=McAfee;i="6500,9779,10504"; a="368367055" X-IronPort-AV: E=Sophos;i="5.95,195,1661842800"; d="scan'208";a="368367055" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2022 23:04:38 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10504"; a="580170684" X-IronPort-AV: E=Sophos;i="5.95,195,1661842800"; d="scan'208";a="580170684" Received: from rtauro-desk.iind.intel.com ([10.190.239.41]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2022 23:04:36 -0700 From: Riana Tauro To: intel-gfx@lists.freedesktop.org Date: Wed, 19 Oct 2022 11:34:02 +0530 Message-Id: <20221019060402.2807360-4-riana.tauro@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221019060402.2807360-1-riana.tauro@intel.com> References: <20221019060402.2807360-1-riana.tauro@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 3/3] drm/i915/selftests: Add hwmon support in libpower for dgfx X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Tilak Tangudu hwmon provides an interface to read energy values for discrete graphics. add hwmon support to the existing libpower library so that it can verify power consumption values in different selftests. Changed prototype of libpower_get_energy_uJ Signed-off-by: Tilak Tangudu Signed-off-by: Riana Tauro --- drivers/gpu/drm/i915/gt/selftest_rc6.c | 8 +++--- drivers/gpu/drm/i915/gt/selftest_rps.c | 22 +++++++-------- drivers/gpu/drm/i915/gt/selftest_slpc.c | 2 +- drivers/gpu/drm/i915/selftests/libpower.c | 33 ++++++++++++----------- drivers/gpu/drm/i915/selftests/libpower.h | 8 +++--- 5 files changed, 38 insertions(+), 35 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c index aacff50dfa89..585915f7c988 100644 --- a/drivers/gpu/drm/i915/gt/selftest_rc6.c +++ b/drivers/gpu/drm/i915/gt/selftest_rc6.c @@ -61,9 +61,9 @@ int live_rc6_manual(void *arg) res[0] = rc6_residency(rc6); dt = ktime_get(); - rc0_power = libpower_get_energy_uJ(); + rc0_power = libpower_get_energy_uJ(gt->i915); msleep(250); - rc0_power = libpower_get_energy_uJ() - rc0_power; + rc0_power = libpower_get_energy_uJ(gt->i915) - rc0_power; dt = ktime_sub(ktime_get(), dt); res[1] = rc6_residency(rc6); if ((res[1] - res[0]) >> 10) { @@ -89,9 +89,9 @@ int live_rc6_manual(void *arg) res[0] = rc6_residency(rc6); intel_uncore_forcewake_flush(rc6_to_uncore(rc6), FORCEWAKE_ALL); dt = ktime_get(); - rc6_power = libpower_get_energy_uJ(); + rc6_power = libpower_get_energy_uJ(gt->i915); msleep(100); - rc6_power = libpower_get_energy_uJ() - rc6_power; + rc6_power = libpower_get_energy_uJ(gt->i915) - rc6_power; dt = ktime_sub(ktime_get(), dt); res[1] = rc6_residency(rc6); if (res[1] == res[0]) { diff --git a/drivers/gpu/drm/i915/gt/selftest_rps.c b/drivers/gpu/drm/i915/gt/selftest_rps.c index 3287698c655b..e88bd774a862 100644 --- a/drivers/gpu/drm/i915/gt/selftest_rps.c +++ b/drivers/gpu/drm/i915/gt/selftest_rps.c @@ -1094,38 +1094,38 @@ int live_rps_interrupt(void *arg) return err; } -static u64 __measure_power(int duration_ms) +static u64 __measure_power(struct intel_gt *gt, int duration_ms) { u64 dE, dt; dt = ktime_get(); - dE = libpower_get_energy_uJ(); + dE = libpower_get_energy_uJ(gt->i915); usleep_range(1000 * duration_ms, 2000 * duration_ms); - dE = libpower_get_energy_uJ() - dE; + dE = libpower_get_energy_uJ(gt->i915) - dE; dt = ktime_get() - dt; return div64_u64(1000 * 1000 * dE, dt); } -static u64 measure_power(struct intel_rps *rps, int *freq) +static u64 measure_power(struct intel_gt *gt, int *freq) { u64 x[5]; int i; for (i = 0; i < 5; i++) - x[i] = __measure_power(5); + x[i] = __measure_power(gt, 5); - *freq = (*freq + intel_rps_read_actual_frequency(rps)) / 2; + *freq = (*freq + intel_rps_read_actual_frequency(>->rps)) / 2; /* A simple triangle filter for better result stability */ sort(x, 5, sizeof(*x), cmp_u64, NULL); return div_u64(x[1] + 2 * x[2] + x[3], 4); } -static u64 measure_power_at(struct intel_rps *rps, int *freq) +static u64 measure_power_at(struct intel_gt *gt, int *freq) { - *freq = rps_set_check(rps, *freq); - return measure_power(rps, freq); + *freq = rps_set_check(>->rps, *freq); + return measure_power(gt, freq); } int live_rps_power(void *arg) @@ -1191,10 +1191,10 @@ int live_rps_power(void *arg) } max.freq = rps->max_freq; - max.power = measure_power_at(rps, &max.freq); + max.power = measure_power_at(gt, &max.freq); min.freq = rps->min_freq; - min.power = measure_power_at(rps, &min.freq); + min.power = measure_power_at(gt, &min.freq); igt_spinner_end(&spin); st_engine_heartbeat_enable(engine); diff --git a/drivers/gpu/drm/i915/gt/selftest_slpc.c b/drivers/gpu/drm/i915/gt/selftest_slpc.c index 494e7a486b07..bca15cfad8a1 100644 --- a/drivers/gpu/drm/i915/gt/selftest_slpc.c +++ b/drivers/gpu/drm/i915/gt/selftest_slpc.c @@ -70,7 +70,7 @@ static u64 measure_power_at_freq(struct intel_gt *gt, int *freq, u64 *power) if (err) return err; *freq = intel_rps_read_actual_frequency(>->rps); - *power = measure_power(>->rps, freq); + *power = measure_power(gt, freq); return err; } diff --git a/drivers/gpu/drm/i915/selftests/libpower.c b/drivers/gpu/drm/i915/selftests/libpower.c index c66e993c5f85..b0dfcdf0f20b 100644 --- a/drivers/gpu/drm/i915/selftests/libpower.c +++ b/drivers/gpu/drm/i915/selftests/libpower.c @@ -6,29 +6,30 @@ #include #include "i915_drv.h" +#include "i915_hwmon.h" #include "libpower.h" -bool libpower_supported(const struct drm_i915_private *i915) -{ - /* Discrete cards require hwmon integration */ - if (IS_DGFX(i915)) - return false; - - return libpower_get_energy_uJ(); -} - -u64 libpower_get_energy_uJ(void) +u64 libpower_get_energy_uJ(struct drm_i915_private *i915) { unsigned long long power; u32 units; + long energy_uJ = 0; - if (rdmsrl_safe(MSR_RAPL_POWER_UNIT, &power)) - return 0; + if (IS_DGFX(i915)) { +#if IS_REACHABLE(CONFIG_HWMON) + if (i915_hwm_get_energy(i915, &energy_uJ)) +#endif + return 0; + } else { + if (rdmsrl_safe(MSR_RAPL_POWER_UNIT, &power)) + return 0; - units = (power & 0x1f00) >> 8; + units = (power & 0x1f00) >> 8; - if (rdmsrl_safe(MSR_PP1_ENERGY_STATUS, &power)) - return 0; + if (rdmsrl_safe(MSR_PP1_ENERGY_STATUS, &power)) + return 0; - return (1000000 * power) >> units; /* convert to uJ */ + energy_uJ = (1000000 * power) >> units; /* convert to uJ */ + } + return energy_uJ; } diff --git a/drivers/gpu/drm/i915/selftests/libpower.h b/drivers/gpu/drm/i915/selftests/libpower.h index 5352981eb946..03a44611f9e9 100644 --- a/drivers/gpu/drm/i915/selftests/libpower.h +++ b/drivers/gpu/drm/i915/selftests/libpower.h @@ -10,8 +10,10 @@ struct drm_i915_private; -bool libpower_supported(const struct drm_i915_private *i915); - -u64 libpower_get_energy_uJ(void); +u64 libpower_get_energy_uJ(struct drm_i915_private *i915); +static inline bool libpower_supported(struct drm_i915_private *i915) +{ + return libpower_get_energy_uJ(i915); +} #endif /* SELFTEST_LIBPOWER_H */