From patchwork Thu Aug 18 23:41:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Sripada, Radhakrishna" X-Patchwork-Id: 12953920 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 823A1C00140 for ; Wed, 24 Aug 2022 19:14:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 64DFAC13E0; Wed, 24 Aug 2022 19:13:56 +0000 (UTC) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5F7F610E5A5; Thu, 18 Aug 2022 23:42:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660866152; x=1692402152; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5wtFqfruh26ymcrjilMJsHUob9eeQw8RGEQc5RKnGTA=; b=kxNks7dNwZSEATdZsSrO3npE/0iDtRq8Z+nUWuzCyGFhg2kwajyQhbg9 nFXASvLexFrJIRi3t3a/yF+bU+wZboM6bptttWBVxbfPdpYl6rvYN2dFX rcC+H8lvofzD0nXIEDKa2AFbYcDz1kJqdXIP0YTArxzElT64c/++Q39Kk aeNfqYmQan7K+aKSscbwcs1RMlMeP+VgoC5i84o4YdBc1VvnaRs1reXHH NWEd2kYBAAQJz4E5a3qkaf0L4OPtSoZR3EMeTpURzaWZQQGg7tp5oPUs5 RZWt44rWveMGIiIP3zsfrwOrol/xufyAbwo3zNxl8bjsggdLGYdoWBAOF w==; X-IronPort-AV: E=McAfee;i="6500,9779,10443"; a="275938525" X-IronPort-AV: E=Sophos;i="5.93,247,1654585200"; d="scan'208,223";a="275938525" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2022 16:42:28 -0700 X-IronPort-AV: E=Sophos;i="5.93,247,1654585200"; d="scan'208,223";a="783953300" Received: from invictus.jf.intel.com ([10.165.21.205]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2022 16:42:28 -0700 From: Radhakrishna Sripada To: intel-gfx@lists.freedesktop.org Subject: [PATCH v2 15/21] drm/i915/mtl: Obtain SAGV values from MMIO instead of GT pcode mailbox Date: Thu, 18 Aug 2022 16:41:56 -0700 Message-Id: <20220818234202.451742-16-radhakrishna.sripada@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220818234202.451742-1-radhakrishna.sripada@intel.com> References: <20220818234202.451742-1-radhakrishna.sripada@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: dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From Meteorlake, Latency Level, SAGV bloack time are read from LATENCY_SAGV register instead of the GT driver pcode mailbox. DDR type and QGV information are also to be read from Mem SS registers. v2: - Simplify MTL_MEM_SS_INFO_QGV_POINT macro(MattR) - Nit: Rearrange the bit def's from higher to lower(MattR) - Restore platform definition for ADL-P(MattR) - Move back intel_qgv_point def to intel_bw.c(Jani) Bspec: 64636, 64608 Cc: Matt Roper Cc: Jani Nikula Original Author: Caz Yokoyama Signed-off-by: José Roberto de Souza Signed-off-by: Radhakrishna Sripada Reviewed-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_bw.c | 42 ++++++++++++++++++++++--- drivers/gpu/drm/i915/i915_reg.h | 16 ++++++++++ drivers/gpu/drm/i915/intel_dram.c | 41 +++++++++++++++++++++++- drivers/gpu/drm/i915/intel_pm.c | 8 ++++- 4 files changed, 100 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 79269d2c476b..46b63afd536a 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -137,6 +137,42 @@ int icl_pcode_restrict_qgv_points(struct drm_i915_private *dev_priv, return 0; } +static int mtl_read_qgv_point_info(struct drm_i915_private *dev_priv, + struct intel_qgv_point *sp, int point) +{ + u32 val, val2; + u16 dclk; + + val = intel_uncore_read(&dev_priv->uncore, + MTL_MEM_SS_INFO_QGV_POINT_LOW(point)); + val2 = intel_uncore_read(&dev_priv->uncore, + MTL_MEM_SS_INFO_QGV_POINT_HIGH(point)); + dclk = REG_FIELD_GET(MTL_DCLK_MASK, val); + sp->dclk = DIV_ROUND_UP((16667 * dclk), 1000); + sp->t_rp = REG_FIELD_GET(MTL_TRP_MASK, val); + sp->t_rcd = REG_FIELD_GET(MTL_TRCD_MASK, val); + + sp->t_rdpre = REG_FIELD_GET(MTL_TRDPRE_MASK, val2); + sp->t_ras = REG_FIELD_GET(MTL_TRAS_MASK, val2); + + sp->t_rc = sp->t_rp + sp->t_ras; + + return 0; +} + +static int +intel_read_qgv_point_info(struct drm_i915_private *dev_priv, + struct intel_qgv_point *sp, + int point) +{ + if (DISPLAY_VER(dev_priv) >= 14) + return mtl_read_qgv_point_info(dev_priv, sp, point); + else if (IS_DG1(dev_priv)) + return dg1_mchbar_read_qgv_point_info(dev_priv, sp, point); + else + return icl_pcode_read_qgv_point_info(dev_priv, sp, point); +} + static int icl_get_qgv_points(struct drm_i915_private *dev_priv, struct intel_qgv_info *qi, bool is_y_tile) @@ -193,11 +229,7 @@ static int icl_get_qgv_points(struct drm_i915_private *dev_priv, for (i = 0; i < qi->num_points; i++) { struct intel_qgv_point *sp = &qi->points[i]; - if (IS_DG1(dev_priv)) - ret = dg1_mchbar_read_qgv_point_info(dev_priv, sp, i); - else - ret = icl_pcode_read_qgv_point_info(dev_priv, sp, i); - + ret = intel_read_qgv_point_info(dev_priv, sp, i); if (ret) return ret; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b2d5e1230c25..5245af8d0ea8 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -8397,4 +8397,20 @@ enum skl_power_gate { #define MTL_LATENCY_LEVEL0_2_4_MASK REG_GENMASK(12, 0) #define MTL_LATENCY_LEVEL1_3_5_MASK REG_GENMASK(28, 16) +#define MTL_LATENCY_SAGV _MMIO(0x4578c) +#define MTL_LATENCY_QCLK_SAGV REG_GENMASK(12, 0) + +#define MTL_MEM_SS_INFO_GLOBAL _MMIO(0x45700) +#define MTL_DDR_TYPE_MASK REG_GENMASK(3, 0) +#define MTL_N_OF_POPULATED_CH_MASK REG_GENMASK(7, 4) +#define MTL_N_OF_ENABLED_QGV_POINTS_MASK REG_GENMASK(11, 8) + +#define MTL_MEM_SS_INFO_QGV_POINT_LOW(point) _MMIO(0x45710 + (point) * 2) +#define MTL_MEM_SS_INFO_QGV_POINT_HIGH(point) _MMIO(0x45714 + (point) * 2) +#define MTL_TRCD_MASK REG_GENMASK(31, 24) +#define MTL_TRP_MASK REG_GENMASK(23, 16) +#define MTL_TRAS_MASK REG_GENMASK(16, 8) +#define MTL_DCLK_MASK REG_GENMASK(15, 0) +#define MTL_TRDPRE_MASK REG_GENMASK(7, 0) + #endif /* _I915_REG_H_ */ diff --git a/drivers/gpu/drm/i915/intel_dram.c b/drivers/gpu/drm/i915/intel_dram.c index 437447119770..2403ccd52c74 100644 --- a/drivers/gpu/drm/i915/intel_dram.c +++ b/drivers/gpu/drm/i915/intel_dram.c @@ -466,6 +466,43 @@ static int gen12_get_dram_info(struct drm_i915_private *i915) return icl_pcode_read_mem_global_info(i915); } +static int xelpdp_get_dram_info(struct drm_i915_private *i915) +{ + u32 val = intel_uncore_read(&i915->uncore, MTL_MEM_SS_INFO_GLOBAL); + struct dram_info *dram_info = &i915->dram_info; + + val = REG_FIELD_GET(MTL_DDR_TYPE_MASK, val); + switch (val) { + case 0: + dram_info->type = INTEL_DRAM_DDR4; + break; + case 1: + dram_info->type = INTEL_DRAM_DDR5; + break; + case 2: + dram_info->type = INTEL_DRAM_LPDDR5; + break; + case 3: + dram_info->type = INTEL_DRAM_LPDDR4; + break; + case 4: + dram_info->type = INTEL_DRAM_DDR3; + break; + case 5: + dram_info->type = INTEL_DRAM_LPDDR3; + break; + default: + MISSING_CASE(val); + return -EINVAL; + } + + dram_info->num_channels = REG_FIELD_GET(MTL_N_OF_POPULATED_CH_MASK, val); + dram_info->num_qgv_points = REG_FIELD_GET(MTL_N_OF_ENABLED_QGV_POINTS_MASK, val); + /* PSF GV points not supported in D14+ */ + + return 0; +} + void intel_dram_detect(struct drm_i915_private *i915) { struct dram_info *dram_info = &i915->dram_info; @@ -480,7 +517,9 @@ void intel_dram_detect(struct drm_i915_private *i915) */ dram_info->wm_lv_0_adjust_needed = !IS_GEN9_LP(i915); - if (GRAPHICS_VER(i915) >= 12) + if (DISPLAY_VER(i915) >= 14) + ret = xelpdp_get_dram_info(i915); + else if (GRAPHICS_VER(i915) >= 12) ret = gen12_get_dram_info(i915); else if (GRAPHICS_VER(i915) >= 11) ret = gen11_get_dram_info(i915); diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index fac565d23d57..f71b3b8b590c 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3698,7 +3698,13 @@ intel_has_sagv(struct drm_i915_private *dev_priv) static u32 intel_sagv_block_time(struct drm_i915_private *dev_priv) { - if (DISPLAY_VER(dev_priv) >= 12) { + if (DISPLAY_VER(dev_priv) >= 14) { + u32 val; + + val = intel_uncore_read(&dev_priv->uncore, MTL_LATENCY_SAGV); + + return REG_FIELD_GET(MTL_LATENCY_QCLK_SAGV, val); + } else if (DISPLAY_VER(dev_priv) >= 12) { u32 val = 0; int ret;