From patchwork Mon Sep 19 11:59:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nilawar, Badal" X-Patchwork-Id: 12980341 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 9E42BC54EE9 for ; Mon, 19 Sep 2022 11:57:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D66B410E609; Mon, 19 Sep 2022 11:56:47 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7FD2C10E602; Mon, 19 Sep 2022 11:56:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; 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19 Sep 2022 04:56:37 -0700 From: Badal Nilawar To: intel-gfx@lists.freedesktop.org Subject: [PATCH 2/2] drm/i915/mtl: Add C6 residency support for MTL SAMedia Date: Mon, 19 Sep 2022 17:29:06 +0530 Message-Id: <20220919115906.1264041-3-badal.nilawar@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220919115906.1264041-1-badal.nilawar@intel.com> References: <20220919115906.1264041-1-badal.nilawar@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: andi.shyti@intel.com, anshuman.gupta@intel.com, dri-devel@lists.freedesktop.org, ashutosh.dixit@intel.com, jon.ewins@intel.com, rodrigo.vivi@intel.com, vinay.belgaumkar@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" For MTL SAMedia updated relevant functions and places in the code to get Media C6 residency. v2: Fixed review comments (Ashutosh) Cc: Vinay Belgaumkar Cc: Ashutosh Dixit Cc: Chris Wilson Signed-off-by: Badal Nilawar --- drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c | 60 +++++++++++++++++++ drivers/gpu/drm/i915/gt/intel_gt_regs.h | 10 ++++ drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c | 9 ++- drivers/gpu/drm/i915/gt/intel_rc6.c | 5 +- drivers/gpu/drm/i915/gt/selftest_rc6.c | 9 ++- drivers/gpu/drm/i915/i915_pmu.c | 8 ++- 6 files changed, 97 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c index 68310881a793..053167b506a9 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c @@ -269,6 +269,64 @@ static int ilk_drpc(struct seq_file *m) return 0; } +static int mtl_drpc(struct seq_file *m) +{ + struct intel_gt *gt = m->private; + struct intel_uncore *uncore = gt->uncore; + u32 gt_core_status, rcctl1, global_forcewake; + u32 mtl_powergate_enable = 0, mtl_powergate_status = 0; + i915_reg_t reg; + + gt_core_status = intel_uncore_read(uncore, MTL_MIRROR_TARGET_WP1); + + global_forcewake = intel_uncore_read(uncore, FORCEWAKE_GT_GEN9); + + rcctl1 = intel_uncore_read(uncore, GEN6_RC_CONTROL); + mtl_powergate_enable = intel_uncore_read(uncore, GEN9_PG_ENABLE); + mtl_powergate_status = intel_uncore_read(uncore, + GEN9_PWRGT_DOMAIN_STATUS); + + seq_printf(m, "RC6 Enabled: %s\n", + str_yes_no(rcctl1 & GEN6_RC_CTL_RC6_ENABLE)); + if (gt->type == GT_MEDIA) { + seq_printf(m, "Media Well Gating Enabled: %s\n", + str_yes_no(mtl_powergate_enable & GEN9_MEDIA_PG_ENABLE)); + } else { + seq_printf(m, "Render Well Gating Enabled: %s\n", + str_yes_no(mtl_powergate_enable & GEN9_RENDER_PG_ENABLE)); + } + + seq_puts(m, "Current RC state: "); + + switch ((gt_core_status & MTL_CC_MASK) >> MTL_CC_SHIFT) { + case MTL_CC0: + seq_puts(m, "on\n"); + break; + case MTL_CC6: + seq_puts(m, "RC6\n"); + break; + default: + seq_puts(m, "Unknown\n"); + break; + } + + if (gt->type == GT_MEDIA) + seq_printf(m, "Media Power Well: %s\n", + (mtl_powergate_status & + GEN9_PWRGT_MEDIA_STATUS_MASK) ? "Up" : "Down"); + else + seq_printf(m, "Render Power Well: %s\n", + (mtl_powergate_status & + GEN9_PWRGT_RENDER_STATUS_MASK) ? "Up" : "Down"); + + reg = (gt->type == GT_MEDIA) ? MTL_MEDIA_MC6 : GEN6_GT_GFX_RC6; + print_rc6_res(m, "RC6 residency since boot:", reg); + + seq_printf(m, "Global Forcewake Requests: 0x%x\n", global_forcewake); + + return fw_domains_show(m, NULL); +} + static int drpc_show(struct seq_file *m, void *unused) { struct intel_gt *gt = m->private; @@ -279,6 +337,8 @@ static int drpc_show(struct seq_file *m, void *unused) with_intel_runtime_pm(gt->uncore->rpm, wakeref) { if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) err = vlv_drpc(m); + else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70)) + err = mtl_drpc(m); else if (GRAPHICS_VER(i915) >= 6) err = gen6_drpc(m); else diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h index 7819d32db956..8a56fd873228 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -1517,6 +1517,16 @@ */ #define MTL_MIRROR_TARGET_WP1 _MMIO(0x0C60) #define MTL_CAGF_MASK REG_GENMASK(8, 0) +#define MTL_CC0 0x0 +#define MTL_CC6 0x3 +#define MTL_CC_SHIFT 9 +#define MTL_CC_MASK (0xf << MTL_CC_SHIFT) + +/* + * MTL: This register contains the total MC6 residency time that SAMedia was + * since boot + */ +#define MTL_MEDIA_MC6 _MMIO(0x138048) #define GEN11_GT_INTR_DW(x) _MMIO(0x190018 + ((x) * 4)) #define GEN11_CSME (31) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c index 54deae45d81f..7ab1d776673a 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c @@ -123,7 +123,14 @@ static ssize_t rc6_enable_show(struct device *dev, static u32 __rc6_residency_ms_show(struct intel_gt *gt) { - return get_residency(gt, GEN6_GT_GFX_RC6); + i915_reg_t reg; + + if (gt->type == GT_MEDIA) + reg = MTL_MEDIA_MC6; + else + reg = GEN6_GT_GFX_RC6; + + return get_residency(gt, reg); } static ssize_t rc6_residency_ms_show(struct device *dev, diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c index f8d0523f4c18..26f71f7f07c6 100644 --- a/drivers/gpu/drm/i915/gt/intel_rc6.c +++ b/drivers/gpu/drm/i915/gt/intel_rc6.c @@ -745,6 +745,7 @@ u64 intel_rc6_residency_ns(struct intel_rc6 *rc6, const i915_reg_t reg) unsigned long flags; unsigned int i; u32 mul, div; + i915_reg_t base; if (!rc6->supported) return 0; @@ -756,8 +757,10 @@ u64 intel_rc6_residency_ns(struct intel_rc6 *rc6, const i915_reg_t reg) * other so we can use the relative address, compared to the smallest * one as the index into driver storage. */ + base = (rc6_to_gt(rc6)->type == GT_MEDIA) ? + MTL_MEDIA_MC6 : GEN6_GT_GFX_RC6_LOCKED; i = (i915_mmio_reg_offset(reg) - - i915_mmio_reg_offset(GEN6_GT_GFX_RC6_LOCKED)) / sizeof(u32); + i915_mmio_reg_offset(base)) / sizeof(u32); if (drm_WARN_ON_ONCE(&i915->drm, i >= ARRAY_SIZE(rc6->cur_residency))) return 0; diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c index 8c70b7e12074..28c6a4b6b8d1 100644 --- a/drivers/gpu/drm/i915/gt/selftest_rc6.c +++ b/drivers/gpu/drm/i915/gt/selftest_rc6.c @@ -15,11 +15,18 @@ static u64 rc6_residency(struct intel_rc6 *rc6) { + struct intel_gt *gt = rc6_to_gt(rc6); + i915_reg_t reg; u64 result; /* XXX VLV_GT_MEDIA_RC6? */ - result = intel_rc6_residency_ns(rc6, GEN6_GT_GFX_RC6); + if (gt->type == GT_MEDIA) + reg = MTL_MEDIA_MC6; + else + reg = GEN6_GT_GFX_RC6; + + result = intel_rc6_residency_ns(rc6, reg); if (HAS_RC6p(rc6_to_i915(rc6))) result += intel_rc6_residency_ns(rc6, GEN6_GT_GFX_RC6p); if (HAS_RC6pp(rc6_to_i915(rc6))) diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c index 958b37123bf1..6ec139668641 100644 --- a/drivers/gpu/drm/i915/i915_pmu.c +++ b/drivers/gpu/drm/i915/i915_pmu.c @@ -146,9 +146,15 @@ static bool pmu_needs_timer(struct i915_pmu *pmu, bool gpu_active) static u64 __get_rc6(struct intel_gt *gt) { struct drm_i915_private *i915 = gt->i915; + i915_reg_t reg; u64 val; - val = intel_rc6_residency_ns(>->rc6, GEN6_GT_GFX_RC6); + if (gt->type == GT_MEDIA) + reg = MTL_MEDIA_MC6; + else + reg = GEN6_GT_GFX_RC6; + + val = intel_rc6_residency_ns(>->rc6, reg); if (HAS_RC6p(i915)) val += intel_rc6_residency_ns(>->rc6, GEN6_GT_GFX_RC6p);