From patchwork Wed Apr 5 06:59:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Riana Tauro X-Patchwork-Id: 13201197 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 81DE2C7619A for ; Wed, 5 Apr 2023 06:59:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 05E3210E845; Wed, 5 Apr 2023 06:59:42 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2D09410E844 for ; Wed, 5 Apr 2023 06:59:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680677980; x=1712213980; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hYP9AK0lC9blnheEYIo6o+gTLMTcuC6HwpSA+TQSdH0=; b=fkto6p2C93hkSd9U7KKcI/0ut1/HNHUHawILKk+4mkV6Vk31amnxX8vg +2Wzam1Zm0cbgZgpBX4HmlVXUCoTUIJo3LzbnCwGHzXp/PnX8EFQhUaeK rF2n6UKp7IosEKbSRLtLi3jqOMYBBRu247gWV93zr+RqV2fSP89qwmm2H /7vsTyDBvQn4HD2l7WYNbglJLPMkG9Ip+iLLrVEvZ3W0zX1t3ckkPtu4L v0U+saBGzyCEBhnGPcZMZrQ8dN9GqShWBpiR/S1PYuja9oLSeT4IKzuHj rKORjxA6W5zMlYBiUwsH3NnVWxoJFDiXnwKQ/G/Q0V46OJporT5HFbh3n Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10670"; a="330986240" X-IronPort-AV: E=Sophos;i="5.98,319,1673942400"; d="scan'208";a="330986240" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Apr 2023 23:59:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10670"; a="719209467" X-IronPort-AV: E=Sophos;i="5.98,319,1673942400"; d="scan'208";a="719209467" Received: from rtauro-desk.iind.intel.com ([10.190.239.41]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Apr 2023 23:59:37 -0700 From: Riana Tauro To: intel-gfx@lists.freedesktop.org Date: Wed, 5 Apr 2023 12:29:29 +0530 Message-Id: <20230405065930.3576936-4-riana.tauro@intel.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230405065930.3576936-1-riana.tauro@intel.com> References: <20230405065930.3576936-1-riana.tauro@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v9 3/4] 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 v2: add per-gt hwmon support (Ashutosh) Signed-off-by: Tilak Tangudu Co-developed-by: Riana Tauro Signed-off-by: Riana Tauro Reviewed-by: Anshuman Gupta Reviewed-by: Ashutosh Dixit --- drivers/gpu/drm/i915/gt/selftest_rc6.c | 10 ++++---- drivers/gpu/drm/i915/gt/selftest_rps.c | 24 +++++++++--------- drivers/gpu/drm/i915/gt/selftest_slpc.c | 4 +-- drivers/gpu/drm/i915/selftests/libpower.c | 31 +++++++++++------------ drivers/gpu/drm/i915/selftests/libpower.h | 10 +++++--- 5 files changed, 40 insertions(+), 39 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c index 15b84c428f66..682f2fe67b3a 100644 --- a/drivers/gpu/drm/i915/gt/selftest_rc6.c +++ b/drivers/gpu/drm/i915/gt/selftest_rc6.c @@ -51,7 +51,7 @@ int live_rc6_manual(void *arg) if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) return 0; - has_power = libpower_supported(gt->i915); + has_power = libpower_supported(gt); wakeref = intel_runtime_pm_get(gt->uncore->rpm); /* Force RC6 off for starters */ @@ -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); msleep(250); - rc0_power = libpower_get_energy_uJ() - rc0_power; + rc0_power = libpower_get_energy_uJ(gt) - 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); msleep(100); - rc6_power = libpower_get_energy_uJ() - rc6_power; + rc6_power = libpower_get_energy_uJ(gt) - 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 ab534964da4d..55ac2fdf2264 100644 --- a/drivers/gpu/drm/i915/gt/selftest_rps.c +++ b/drivers/gpu/drm/i915/gt/selftest_rps.c @@ -1090,38 +1090,38 @@ 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; - dE = libpower_get_energy_uJ(); + dE = libpower_get_energy_uJ(gt); dt = ktime_get(); usleep_range(1000 * duration_ms, 2000 * duration_ms); - dE = libpower_get_energy_uJ() - dE; + dE = libpower_get_energy_uJ(gt) - 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) @@ -1143,7 +1143,7 @@ int live_rps_power(void *arg) if (!intel_rps_is_enabled(rps) || GRAPHICS_VER(gt->i915) < 6) return 0; - if (!libpower_supported(gt->i915)) + if (!libpower_supported(gt)) return 0; if (igt_spinner_init(&spin, gt)) @@ -1187,10 +1187,10 @@ 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 fc1cdda82ec6..20b9e05d3d16 100644 --- a/drivers/gpu/drm/i915/gt/selftest_slpc.c +++ b/drivers/gpu/drm/i915/gt/selftest_slpc.c @@ -78,7 +78,7 @@ 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; } @@ -169,7 +169,7 @@ static int slpc_power(struct intel_gt *gt, struct intel_engine_cs *engine) * actually saves power. Let's see if our RAPL measurement supports * that theory. */ - if (!libpower_supported(gt->i915)) + if (!libpower_supported(gt)) return 0; min.freq = slpc->min_freq; diff --git a/drivers/gpu/drm/i915/selftests/libpower.c b/drivers/gpu/drm/i915/selftests/libpower.c index 5d96cccd2e55..c25771d200e2 100644 --- a/drivers/gpu/drm/i915/selftests/libpower.c +++ b/drivers/gpu/drm/i915/selftests/libpower.c @@ -6,29 +6,28 @@ #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 intel_gt *gt) { unsigned long long power; u32 units; + long energy_uJ = 0; - if (rdmsrl_safe(MSR_RAPL_POWER_UNIT, &power)) - return 0; + if (IS_DGFX(gt->i915)) { + if (i915_hwmon_get_energy(gt, &energy_uJ)) + 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 dd4b93ccf6b0..52d9eee6852a 100644 --- a/drivers/gpu/drm/i915/selftests/libpower.h +++ b/drivers/gpu/drm/i915/selftests/libpower.h @@ -8,10 +8,12 @@ #include -struct drm_i915_private; +struct intel_gt; -bool libpower_supported(const struct drm_i915_private *i915); - -u64 libpower_get_energy_uJ(void); +u64 libpower_get_energy_uJ(struct intel_gt *gt); +static inline bool libpower_supported(struct intel_gt *gt) +{ + return libpower_get_energy_uJ(gt); +} #endif /* SELFTEST_LIBPOWER_H */