From patchwork Fri Feb 16 14:20:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mitul Golani X-Patchwork-Id: 13560100 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 BE945C48BF5 for ; Fri, 16 Feb 2024 14:27:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DB9EF10EAE9; Fri, 16 Feb 2024 14:27:24 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="EsmG+cpK"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 50A4610EA34; Fri, 16 Feb 2024 14:27:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1708093644; x=1739629644; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=L7MRLdu+l2NlLRdf3eGQNzk4v2hfFYWYieoywhJY6lo=; b=EsmG+cpKQuWNO2lY9Dh+QmEeZk8a3UeinsptqgIAjfninKISYbLqy8Yt to5HoZCyLF92zqtcKOkEUuAVgDKXU0QJVKYMfalwFwwLNzTrdCT6VvWsi +Uy3E4w3XqFL/9RHOumUB+DtKH8TVLN5sCgo3XBPgAJiGLlvEPRE9pc0Y YDhELSxJ8UK749746hwZ/fsKQ6D3riurCVyqyVx7beJnyLRJytwhsdSYh AvyJehFgGEuar1pm+1VDOdN+K9bmNH4E6UpKTWz4M4xa4u4P/6VCd5a3k xEql2PkZzA2wjeo7kmL2sHUs3xKg7LArwnfwfZVPYtAACJbWt1VNhv8oF w==; X-IronPort-AV: E=McAfee;i="6600,9927,10985"; a="2076808" X-IronPort-AV: E=Sophos;i="6.06,164,1705392000"; d="scan'208";a="2076808" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2024 06:27:23 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,164,1705392000"; d="scan'208";a="3818335" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa010.fm.intel.com with ESMTP; 16 Feb 2024 06:27:22 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: ankit.k.nautiyal@intel.com, dri-devel@lists.freedesktop.org, Mitul Golani Subject: [PATCH 1/6] drm/dp: Add an support to indicate if sink supports AS SDP Date: Fri, 16 Feb 2024 19:50:19 +0530 Message-Id: <20240216142024.1884258-2-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> References: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 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" Add an API which indicates the sink support Adaptive Sync SDP, which can be used by the rest of the DP programming. Signed-off-by: Mitul Golani --- drivers/gpu/drm/display/drm_dp_helper.c | 25 +++++++++++++++++++++++++ include/drm/display/drm_dp_helper.h | 2 ++ 2 files changed, 27 insertions(+) diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index 8d6ce46471ae..81c5507928f5 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -2913,6 +2913,31 @@ void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc) } EXPORT_SYMBOL(drm_dp_vsc_sdp_log); +/** + * drm_dp_as_sdp_supported() - check if adaptive sync sdp is supported + * @aux: DisplayPort AUX channel + * @dpcd: DisplayPort configuration data + * + * Returns true if adaptive sync sdp is supported, else returns false + */ +bool drm_dp_as_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]) +{ + u8 rx_feature; + + if (dpcd[DP_DPCD_REV] < DP_DPCD_REV_13) + return false; + + if (drm_dp_dpcd_readb(aux, DP_DPRX_FEATURE_ENUMERATION_LIST_CONT_1, + &rx_feature) != 1) { + drm_dbg_dp(aux->drm_dev, + "failed to read DP_DPRX_FEATURE_ENUMERATION_LIST_CONT_1\n"); + return false; + } + + return (rx_feature & DP_ADAPTIVE_SYNC_SDP_SUPPORTED); +} +EXPORT_SYMBOL(drm_dp_as_sdp_supported); + /** * drm_dp_get_pcon_max_frl_bw() - maximum frl supported by PCON * @dpcd: DisplayPort configuration data diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h index d02014a87f12..a0356721de0f 100644 --- a/include/drm/display/drm_dp_helper.h +++ b/include/drm/display/drm_dp_helper.h @@ -100,6 +100,8 @@ struct drm_dp_vsc_sdp { void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc); +bool drm_dp_as_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]); + int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]); static inline int From patchwork Fri Feb 16 14:20:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mitul Golani X-Patchwork-Id: 13560101 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 D52FBC48260 for ; 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X-IronPort-AV: E=McAfee;i="6600,9927,10985"; a="2076809" X-IronPort-AV: E=Sophos;i="6.06,164,1705392000"; d="scan'208";a="2076809" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2024 06:27:25 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,164,1705392000"; d="scan'208";a="3818343" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa010.fm.intel.com with ESMTP; 16 Feb 2024 06:27:23 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: ankit.k.nautiyal@intel.com, dri-devel@lists.freedesktop.org, Mitul Golani Subject: [PATCH 2/6] drm: Add Adaptive Sync SDP logging Date: Fri, 16 Feb 2024 19:50:20 +0530 Message-Id: <20240216142024.1884258-3-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> References: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 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" Add structure representing Adaptive Sync Secondary Data Packet (AS SDP). Also, add Adaptive Sync SDP logging in drm_dp_helper.c to facilitate debugging. --v2: - Update logging. [Jani, Ankit] - use as_sdp instead of async [Ankit] - Correct define placeholders to where it is being actually used. [Jani] - Update members in as_sdp structure and make it uniform. [Jani] --v3: - Add changes dri-devel mail list. No code changes. Signed-off-by: Mitul Golani --- drivers/gpu/drm/display/drm_dp_helper.c | 12 ++++++++ .../drm/i915/display/intel_crtc_state_dump.c | 12 ++++++++ .../drm/i915/display/intel_display_types.h | 1 + include/drm/display/drm_dp.h | 2 ++ include/drm/display/drm_dp_helper.h | 30 +++++++++++++++++++ 5 files changed, 57 insertions(+) diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index 81c5507928f5..5911b20de2ea 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -2913,6 +2913,18 @@ void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc) } EXPORT_SYMBOL(drm_dp_vsc_sdp_log); +void drm_dp_as_sdp_log(struct drm_printer *p, const struct drm_dp_as_sdp *as_sdp) +{ + drm_printf(p, "DP SDP: AS_SDP, revision %u, length %u\n", + as_sdp->revision, as_sdp->length); + drm_printf(p, " vtotal: %d\n", as_sdp->vtotal); + drm_printf(p, " target_rr: %d\n", as_sdp->target_rr); + drm_printf(p, " duration_incr_ms: %d\n", as_sdp->duration_incr_ms); + drm_printf(p, " duration_decr_ms: %d\n", as_sdp->duration_decr_ms); + drm_printf(p, " operation_mode: %d\n", as_sdp->operation_mode); +} +EXPORT_SYMBOL(drm_dp_as_sdp_log); + /** * drm_dp_as_sdp_supported() - check if adaptive sync sdp is supported * @aux: DisplayPort AUX channel diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c index 4bcf446c75f4..26d77c2934e8 100644 --- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c +++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c @@ -60,6 +60,15 @@ intel_dump_dp_vsc_sdp(struct drm_i915_private *i915, drm_dp_vsc_sdp_log(&p, vsc); } +static void +intel_dump_dp_as_sdp(struct drm_i915_private *i915, + const struct drm_dp_as_sdp *as_sdp) +{ + struct drm_printer p = drm_dbg_printer(&i915->drm, DRM_UT_KMS, "AS_SDP"); + + drm_dp_as_sdp_log(&p, as_sdp); +} + static void intel_dump_buffer(struct drm_i915_private *i915, const char *prefix, const u8 *buf, size_t len) @@ -299,6 +308,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config, if (pipe_config->infoframes.enable & intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GAMUT_METADATA)) intel_dump_infoframe(i915, &pipe_config->infoframes.drm); + if (pipe_config->infoframes.enable & + intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC)) + intel_dump_dp_as_sdp(i915, &pipe_config->infoframes.as_sdp); if (pipe_config->infoframes.enable & intel_hdmi_infoframe_enable(DP_SDP_VSC)) intel_dump_dp_vsc_sdp(i915, &pipe_config->infoframes.vsc); diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 0d4012097db1..a6991bc3f07b 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1332,6 +1332,7 @@ struct intel_crtc_state { union hdmi_infoframe hdmi; union hdmi_infoframe drm; struct drm_dp_vsc_sdp vsc; + struct drm_dp_as_sdp as_sdp; } infoframes; u8 eld[MAX_ELD_BYTES]; diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h index 281afff6ee4e..af6790fb4791 100644 --- a/include/drm/display/drm_dp.h +++ b/include/drm/display/drm_dp.h @@ -1578,10 +1578,12 @@ enum drm_dp_phy { #define DP_SDP_AUDIO_COPYMANAGEMENT 0x05 /* DP 1.2 */ #define DP_SDP_ISRC 0x06 /* DP 1.2 */ #define DP_SDP_VSC 0x07 /* DP 1.2 */ +#define DP_SDP_ADAPTIVE_SYNC 0x22 /* DP 1.4 */ #define DP_SDP_CAMERA_GENERIC(i) (0x08 + (i)) /* 0-7, DP 1.3 */ #define DP_SDP_PPS 0x10 /* DP 1.4 */ #define DP_SDP_VSC_EXT_VESA 0x20 /* DP 1.4 */ #define DP_SDP_VSC_EXT_CEA 0x21 /* DP 1.4 */ + /* 0x80+ CEA-861 infoframe types */ #define DP_SDP_AUDIO_INFOFRAME_HB2 0x1b diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h index a0356721de0f..8a692a86d8d6 100644 --- a/include/drm/display/drm_dp_helper.h +++ b/include/drm/display/drm_dp_helper.h @@ -98,6 +98,36 @@ struct drm_dp_vsc_sdp { enum dp_content_type content_type; }; +/** + * struct drm_dp_as_sdp - drm DP Adaptive Sync SDP + * + * This structure represents a DP AS SDP of drm + * It is based on DP 2.1 spec [Table 2-126: Adaptive-Sync SDP Header Bytes] and + * [Table 2-127: Adaptive-Sync SDP Payload for DB0 through DB8] + * + * @sdp_type: secondary-data packet type + * @length: number of valid data bytes + * @vmin: minimum vtotal + * @vmax: maximum vtotal + * @duration_incr_ms: Successive frame duration increase + * @duration_decr_ms: Successive frame duration decrease + * @operation_mode: Adaptive Sync Operation Mode + */ + +struct drm_dp_as_sdp { + unsigned char sdp_type; + unsigned char revision; + unsigned char length; + int vtotal; + int target_rr; + int duration_incr_ms; + int duration_decr_ms; + int operation_mode; +}; + +void drm_dp_as_sdp_log(struct drm_printer *p, + const struct drm_dp_as_sdp *as_sdp); + void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc); bool drm_dp_as_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]); From patchwork Fri Feb 16 14:20:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mitul Golani X-Patchwork-Id: 13560102 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 88E5FC48BC4 for ; Fri, 16 Feb 2024 14:27:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C325D10EAC6; Fri, 16 Feb 2024 14:27:28 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="dwSwoKh5"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3243910EB3C; 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d="scan'208";a="3818353" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa010.fm.intel.com with ESMTP; 16 Feb 2024 06:27:25 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: ankit.k.nautiyal@intel.com, dri-devel@lists.freedesktop.org, Mitul Golani Subject: [PATCH 3/6] drm/i915/dp: Add Read/Write support for Adaptive Sync SDP Date: Fri, 16 Feb 2024 19:50:21 +0530 Message-Id: <20240216142024.1884258-4-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> References: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 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" Add the necessary structures and functions to handle reading and unpacking Adaptive Sync Secondary Data Packets. Also add support to write and pack AS SDP. --v2: - Correct use of REG_BIT and REG_GENMASK. [Jani] - Use as_sdp instead of async. [Jani] - Remove unrelated comments and changes. [Jani] - Correct code indent. [Jani] --v3: - Update definition names for AS SDP which are starting from HSW, as these defines are applicable for ADLP+.(Ankit) Signed-off-by: Mitul Golani --- drivers/gpu/drm/i915/display/intel_dp.c | 95 ++++++++++++++++++++++- drivers/gpu/drm/i915/display/intel_hdmi.c | 12 ++- drivers/gpu/drm/i915/i915_reg.h | 8 ++ include/drm/display/drm_dp.h | 2 +- include/drm/display/drm_dp_helper.h | 2 + 5 files changed, 114 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 217196196e50..d68fb9d45054 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -95,7 +95,6 @@ #define INTEL_DP_RESOLUTION_STANDARD (2 << INTEL_DP_RESOLUTION_SHIFT_MASK) #define INTEL_DP_RESOLUTION_FAILSAFE (3 << INTEL_DP_RESOLUTION_SHIFT_MASK) - /* Constants for DP DSC configurations */ static const u8 valid_dsc_bpp[] = {6, 8, 10, 12, 15}; @@ -4089,6 +4088,34 @@ intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state, return false; } +static ssize_t intel_dp_as_sdp_pack(const struct drm_dp_as_sdp *as_sdp, + struct dp_sdp *sdp, size_t size) +{ + size_t length = sizeof(struct dp_sdp); + + if (size < length) + return -ENOSPC; + + memset(sdp, 0, size); + + /* Prepare AS (Adaptive Sync) SDP Header */ + sdp->sdp_header.HB0 = 0; + sdp->sdp_header.HB1 = as_sdp->sdp_type; + sdp->sdp_header.HB2 = 0x02; + sdp->sdp_header.HB3 = as_sdp->length; + + /* Fill AS (Adaptive Sync) SDP Payload */ + sdp->db[1] = 0x0; + sdp->db[1] = as_sdp->vtotal & 0xFF; + sdp->db[2] = (as_sdp->vtotal >> 8) & 0xF; + sdp->db[3] = 0x0; + sdp->db[4] = 0x0; + sdp->db[7] = 0x0; + sdp->db[8] = 0x0; + + return length; +} + static ssize_t intel_dp_vsc_sdp_pack(const struct drm_dp_vsc_sdp *vsc, struct dp_sdp *sdp, size_t size) { @@ -4256,6 +4283,10 @@ static void intel_write_dp_sdp(struct intel_encoder *encoder, &crtc_state->infoframes.drm.drm, &sdp, sizeof(sdp)); break; + case DP_SDP_ADAPTIVE_SYNC: + len = intel_dp_as_sdp_pack(&crtc_state->infoframes.as_sdp, &sdp, + sizeof(sdp)); + break; default: MISSING_CASE(type); return; @@ -4276,7 +4307,8 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder, i915_reg_t reg = HSW_TVIDEO_DIP_CTL(crtc_state->cpu_transcoder); u32 dip_enable = VIDEO_DIP_ENABLE_AVI_HSW | VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW | VIDEO_DIP_ENABLE_GMP_HSW | - VIDEO_DIP_ENABLE_SPD_HSW | VIDEO_DIP_ENABLE_DRM_GLK; + VIDEO_DIP_ENABLE_SPD_HSW | VIDEO_DIP_ENABLE_DRM_GLK | + VIDEO_DIP_ENABLE_ADAPTIVE_SYNC; u32 val = intel_de_read(dev_priv, reg) & ~dip_enable; /* TODO: Sanitize DSC enabling wrt. intel_dsc_dp_pps_write(). */ @@ -4298,6 +4330,40 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder, intel_write_dp_sdp(encoder, crtc_state, HDMI_PACKET_TYPE_GAMUT_METADATA); } +static +int intel_dp_as_sdp_unpack(struct drm_dp_as_sdp *as_sdp, + const void *buffer, size_t size) +{ + const struct dp_sdp *sdp = buffer; + + if (size < sizeof(struct dp_sdp)) + return -EINVAL; + + memset(as_sdp, 0, sizeof(*as_sdp)); + + if (sdp->sdp_header.HB0 != 0) + return -EINVAL; + + if (sdp->sdp_header.HB1 != DP_SDP_ADAPTIVE_SYNC) + return -EINVAL; + + if (sdp->sdp_header.HB2 != 0x02) + return -EINVAL; + + if ((sdp->sdp_header.HB3 & 0x3F) != 9) + return -EINVAL; + + if ((sdp->db[0] & AS_SDP_OP_MODE) != 0x0) + return -EINVAL; + + as_sdp->vtotal = ((u64)sdp->db[2] << 32) | (u64)sdp->db[1]; + as_sdp->target_rr = 0; + as_sdp->duration_incr_ms = 0; + as_sdp->duration_decr_ms = 0; + + return 0; +} + static int intel_dp_vsc_sdp_unpack(struct drm_dp_vsc_sdp *vsc, const void *buffer, size_t size) { @@ -4368,6 +4434,27 @@ static int intel_dp_vsc_sdp_unpack(struct drm_dp_vsc_sdp *vsc, return 0; } +static int +intel_read_dp_metadata_infoframe_as_sdp(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state, + struct drm_dp_as_sdp *as_sdp) +{ + struct intel_digital_port *dig_port = enc_to_dig_port(encoder); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + unsigned int type = DP_SDP_ADAPTIVE_SYNC; + struct dp_sdp sdp = {}; + int ret; + + dig_port->read_infoframe(encoder, crtc_state, type, &sdp, + sizeof(sdp)); + + ret = intel_dp_as_sdp_unpack(as_sdp, &sdp, sizeof(sdp)); + if (ret) + drm_dbg_kms(&dev_priv->drm, "Failed to unpack DP AS SDP\n"); + + return ret; +} + static int intel_dp_hdr_metadata_infoframe_sdp_unpack(struct hdmi_drm_infoframe *drm_infoframe, const void *buffer, size_t size) @@ -4474,6 +4561,10 @@ void intel_read_dp_sdp(struct intel_encoder *encoder, intel_read_dp_hdr_metadata_infoframe_sdp(encoder, crtc_state, &crtc_state->infoframes.drm.drm); break; + case DP_SDP_ADAPTIVE_SYNC: + intel_read_dp_metadata_infoframe_as_sdp(encoder, crtc_state, + &crtc_state->infoframes.as_sdp); + break; default: MISSING_CASE(type); break; diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 7020e5806109..69e0876f43aa 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -137,6 +137,8 @@ static u32 hsw_infoframe_enable(unsigned int type) return VIDEO_DIP_ENABLE_GMP_HSW; case DP_SDP_VSC: return VIDEO_DIP_ENABLE_VSC_HSW; + case DP_SDP_ADAPTIVE_SYNC: + return VIDEO_DIP_ENABLE_ADAPTIVE_SYNC; case DP_SDP_PPS: return VDIP_ENABLE_PPS; case HDMI_INFOFRAME_TYPE_AVI: @@ -164,6 +166,8 @@ hsw_dip_data_reg(struct drm_i915_private *dev_priv, return HSW_TVIDEO_DIP_GMP_DATA(cpu_transcoder, i); case DP_SDP_VSC: return HSW_TVIDEO_DIP_VSC_DATA(cpu_transcoder, i); + case DP_SDP_ADAPTIVE_SYNC: + return TVIDEO_DIP_AS_SDP_DATA(cpu_transcoder, i); case DP_SDP_PPS: return ICL_VIDEO_DIP_PPS_DATA(cpu_transcoder, i); case HDMI_INFOFRAME_TYPE_AVI: @@ -186,6 +190,8 @@ static int hsw_dip_data_size(struct drm_i915_private *dev_priv, switch (type) { case DP_SDP_VSC: return VIDEO_DIP_VSC_DATA_SIZE; + case DP_SDP_ADAPTIVE_SYNC: + return VIDEO_DIP_ASYNC_DATA_SIZE; case DP_SDP_PPS: return VIDEO_DIP_PPS_DATA_SIZE; case HDMI_PACKET_TYPE_GAMUT_METADATA: @@ -558,7 +564,8 @@ static u32 hsw_infoframes_enabled(struct intel_encoder *encoder, mask = (VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW | VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW | - VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW); + VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW | + VIDEO_DIP_ENABLE_ADAPTIVE_SYNC); if (DISPLAY_VER(dev_priv) >= 10) mask |= VIDEO_DIP_ENABLE_DRM_GLK; @@ -570,6 +577,7 @@ static const u8 infoframe_type_to_idx[] = { HDMI_PACKET_TYPE_GENERAL_CONTROL, HDMI_PACKET_TYPE_GAMUT_METADATA, DP_SDP_VSC, + DP_SDP_ADAPTIVE_SYNC, HDMI_INFOFRAME_TYPE_AVI, HDMI_INFOFRAME_TYPE_SPD, HDMI_INFOFRAME_TYPE_VENDOR, @@ -1212,7 +1220,7 @@ static void hsw_set_infoframes(struct intel_encoder *encoder, val &= ~(VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW | VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW | VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW | - VIDEO_DIP_ENABLE_DRM_GLK); + VIDEO_DIP_ENABLE_DRM_GLK | VIDEO_DIP_ENABLE_ADAPTIVE_SYNC); if (!enable) { intel_de_write(dev_priv, reg, val); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index e00557e1a57f..c02ea07af4c2 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2312,6 +2312,7 @@ * (Haswell and newer) to see which VIDEO_DIP_DATA byte corresponds to each byte * of the infoframe structure specified by CEA-861. */ #define VIDEO_DIP_DATA_SIZE 32 +#define VIDEO_DIP_ASYNC_DATA_SIZE 36 #define VIDEO_DIP_GMP_DATA_SIZE 36 #define VIDEO_DIP_VSC_DATA_SIZE 36 #define VIDEO_DIP_PPS_DATA_SIZE 132 @@ -2350,6 +2351,8 @@ #define VIDEO_DIP_ENABLE_VS_HSW (1 << 8) #define VIDEO_DIP_ENABLE_GMP_HSW (1 << 4) #define VIDEO_DIP_ENABLE_SPD_HSW (1 << 0) +/* ADL and later: */ +#define VIDEO_DIP_ENABLE_ADAPTIVE_SYNC REG_BIT(23) /* Panel fitting */ #define PFIT_CONTROL _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61230) @@ -5040,6 +5043,7 @@ #define _HSW_VIDEO_DIP_SPD_DATA_A 0x602A0 #define _HSW_VIDEO_DIP_GMP_DATA_A 0x602E0 #define _HSW_VIDEO_DIP_VSC_DATA_A 0x60320 +#define _VIDEO_DIP_AS_SDP_DATA_A 0x60484 #define _GLK_VIDEO_DIP_DRM_DATA_A 0x60440 #define _HSW_VIDEO_DIP_AVI_ECC_A 0x60240 #define _HSW_VIDEO_DIP_VS_ECC_A 0x60280 @@ -5054,6 +5058,7 @@ #define _HSW_VIDEO_DIP_SPD_DATA_B 0x612A0 #define _HSW_VIDEO_DIP_GMP_DATA_B 0x612E0 #define _HSW_VIDEO_DIP_VSC_DATA_B 0x61320 +#define _VIDEO_DIP_AS_SDP_DATA_B 0x61484 #define _GLK_VIDEO_DIP_DRM_DATA_B 0x61440 #define _HSW_VIDEO_DIP_BVI_ECC_B 0x61240 #define _HSW_VIDEO_DIP_VS_ECC_B 0x61280 @@ -5083,6 +5088,9 @@ #define GLK_TVIDEO_DIP_DRM_DATA(trans, i) _MMIO_TRANS2(trans, _GLK_VIDEO_DIP_DRM_DATA_A + (i) * 4) #define ICL_VIDEO_DIP_PPS_DATA(trans, i) _MMIO_TRANS2(trans, _ICL_VIDEO_DIP_PPS_DATA_A + (i) * 4) #define ICL_VIDEO_DIP_PPS_ECC(trans, i) _MMIO_TRANS2(trans, _ICL_VIDEO_DIP_PPS_ECC_A + (i) * 4) +/*ADLP and later: */ +#define TVIDEO_DIP_AS_SDP_DATA(trans, i) _MMIO_TRANS2(trans,\ + _VIDEO_DIP_AS_SDP_DATA_A + (i) * 4) #define _HSW_STEREO_3D_CTL_A 0x70020 #define S3D_ENABLE (1 << 31) diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h index af6790fb4791..6f4a3e95906c 100644 --- a/include/drm/display/drm_dp.h +++ b/include/drm/display/drm_dp.h @@ -1578,7 +1578,7 @@ enum drm_dp_phy { #define DP_SDP_AUDIO_COPYMANAGEMENT 0x05 /* DP 1.2 */ #define DP_SDP_ISRC 0x06 /* DP 1.2 */ #define DP_SDP_VSC 0x07 /* DP 1.2 */ -#define DP_SDP_ADAPTIVE_SYNC 0x22 /* DP 1.4 */ +#define DP_SDP_ADAPTIVE_SYNC 0x22 /* DP 1.4 */ #define DP_SDP_CAMERA_GENERIC(i) (0x08 + (i)) /* 0-7, DP 1.3 */ #define DP_SDP_PPS 0x10 /* DP 1.4 */ #define DP_SDP_VSC_EXT_VESA 0x20 /* DP 1.4 */ diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h index 8a692a86d8d6..a4e0b18bba3a 100644 --- a/include/drm/display/drm_dp_helper.h +++ b/include/drm/display/drm_dp_helper.h @@ -839,6 +839,8 @@ int drm_dp_pcon_convert_rgb_to_ycbcr(struct drm_dp_aux *aux, u8 color_spc); #define DRM_DP_BW_OVERHEAD_FEC BIT(3) #define DRM_DP_BW_OVERHEAD_DSC BIT(4) +#define AS_SDP_OP_MODE GENMASK(1, 0) + int drm_dp_bw_overhead(int lane_count, int hactive, int dsc_slice_count, int bpp_x16, unsigned long flags); From patchwork Fri Feb 16 14:20:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mitul Golani X-Patchwork-Id: 13560103 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 B1E62C48BEF for ; Fri, 16 Feb 2024 14:27:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1961410EB60; Fri, 16 Feb 2024 14:27:30 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; 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d="scan'208";a="2076823" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2024 06:27:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,164,1705392000"; d="scan'208";a="3818358" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa010.fm.intel.com with ESMTP; 16 Feb 2024 06:27:27 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: ankit.k.nautiyal@intel.com, dri-devel@lists.freedesktop.org, Mitul Golani Subject: [PATCH 4/6] drm/i915/display: Compute and Enable AS SDP Date: Fri, 16 Feb 2024 19:50:22 +0530 Message-Id: <20240216142024.1884258-5-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> References: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 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" Add necessary functions definitions to enable and compute AS SDP data. The new `intel_dp_compute_as_sdp` function computes AS SDP values based on the display configuration, ensuring proper handling of Variable Refresh Rate (VRR). --v2: - Add DP_SDP_ADAPTIVE_SYNC to infoframe_type_to_idx().[Ankit] - separate patch for intel_read/write_dp_sdp [Ankit]. - _HSW_VIDEO_DIP_ASYNC_DATA_A should be from ADL onward [Ankit] - To fix indentation [Ankit] --v3: - Add VIDEO_DIP_ENABLE_AS_HSW flag to intel_dp_set_infoframes. --v4: - Add HAS_VRR check before write as sdp. --v5: - Add missed HAS_VRR check before read as sdp. --v6: Use Adaptive Sync sink status, which can be used as a check for read/write sdp. (Ankit) Signed-off-by: Mitul Golani --- drivers/gpu/drm/i915/display/intel_dp.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index d68fb9d45054..0759266e7bfb 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2617,6 +2617,25 @@ static void intel_dp_compute_vsc_colorimetry(const struct intel_crtc_state *crtc vsc->content_type = DP_CONTENT_TYPE_NOT_DEFINED; } +static void intel_dp_compute_as_sdp(struct intel_dp *intel_dp, + struct intel_crtc_state *crtc_state, + const struct drm_connector_state *conn_state) +{ + struct drm_dp_as_sdp *as_sdp = &crtc_state->infoframes.as_sdp; + struct intel_connector *connector = intel_dp->attached_connector; + const struct drm_display_mode *adjusted_mode = + &crtc_state->hw.adjusted_mode; + int vrefresh = drm_mode_vrefresh(adjusted_mode); + + if (!intel_vrr_is_in_range(connector, vrefresh)) + return; + + crtc_state->infoframes.enable |= intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC); + as_sdp->sdp_type = DP_SDP_ADAPTIVE_SYNC; + as_sdp->length = 0x9; + as_sdp->vtotal = adjusted_mode->vtotal; +} + static void intel_dp_compute_vsc_sdp(struct intel_dp *intel_dp, struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) @@ -2942,6 +2961,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, g4x_dp_set_clock(encoder, pipe_config); intel_vrr_compute_config(pipe_config, conn_state); + intel_dp_compute_as_sdp(intel_dp, pipe_config, conn_state); intel_psr_compute_config(intel_dp, pipe_config, conn_state); intel_dp_drrs_compute_config(connector, pipe_config, link_bpp_x16); intel_dp_compute_vsc_sdp(intel_dp, pipe_config, conn_state); From patchwork Fri Feb 16 14:20:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mitul Golani X-Patchwork-Id: 13560104 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 C3F28C48BC4 for ; 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X-IronPort-AV: E=McAfee;i="6600,9927,10985"; a="2076827" X-IronPort-AV: E=Sophos;i="6.06,164,1705392000"; d="scan'208";a="2076827" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2024 06:27:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,164,1705392000"; d="scan'208";a="3818367" Received: from mgolanimitul-x299-ud4-pro.iind.intel.com ([10.190.239.114]) by fmviesa010.fm.intel.com with ESMTP; 16 Feb 2024 06:27:29 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: ankit.k.nautiyal@intel.com, dri-devel@lists.freedesktop.org, Mitul Golani Subject: [PATCH 5/6] drm/i915/display: Compute vrr_vsync params Date: Fri, 16 Feb 2024 19:50:23 +0530 Message-Id: <20240216142024.1884258-6-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> References: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 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" Compute vrr_vsync_start/end which sets the position for hardware to send the Vsync at a fixed position relative to the end of the Vblank. --v2: - Update, VSYNC_START/END macros to VRR_VSYNC_START/END.(Ankit) - Update bit fields of VRR_VSYNC_START/END.(Ankit) Signed-off-by: Mitul Golani --- drivers/gpu/drm/i915/display/intel_display_types.h | 1 + drivers/gpu/drm/i915/display/intel_vrr.c | 7 +++++++ drivers/gpu/drm/i915/i915_reg.h | 11 +++++++++++ 3 files changed, 19 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index a6991bc3f07b..015ed846b896 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1414,6 +1414,7 @@ struct intel_crtc_state { bool enable, in_range; u8 pipeline_full; u16 flipline, vmin, vmax, guardband; + u32 vsync_end, vsync_start; } vrr; /* Stream Splitter for eDP MSO */ diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index 5d905f932cb4..2fa0004d00c7 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -149,6 +149,13 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, crtc_state->vrr.flipline = crtc_state->vrr.vmin + 1; + crtc_state->vrr.vsync_start = + (crtc_state->hw.adjusted_mode.crtc_vtotal - + VRR_VSYNC_START(crtc_state->hw.adjusted_mode.vsync_start)); + crtc_state->vrr.vsync_end = + (crtc_state->hw.adjusted_mode.crtc_vtotal - + (VRR_VSYNC_END(crtc_state->hw.adjusted_mode.vsync_end) >> 16)); + /* * For XE_LPD+, we use guardband and pipeline override * is deprecated. diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c02ea07af4c2..f73e95b18819 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1955,6 +1955,10 @@ #define VSYNC_END(vsync_end) REG_FIELD_PREP(VSYNC_END_MASK, (vsync_end)) #define VSYNC_START_MASK REG_GENMASK(15, 0) #define VSYNC_START(vsync_start) REG_FIELD_PREP(VSYNC_START_MASK, (vsync_start)) +#define VSYNC_END_MASK REG_GENMASK(31, 16) +#define VSYNC_END(vsync_end) REG_FIELD_PREP(VSYNC_END_MASK, (vsync_end)) +#define VSYNC_START_MASK REG_GENMASK(15, 0) +#define VSYNC_START(vsync_start) REG_FIELD_PREP(VSYNC_START_MASK, (vsync_start)) #define _TRANS_EXITLINE_A 0x60018 #define _PIPEASRC 0x6001c #define PIPESRC_WIDTH_MASK REG_GENMASK(31, 16) @@ -2007,7 +2011,9 @@ #define _TRANS_VRR_CTL_B 0x61420 #define _TRANS_VRR_CTL_C 0x62420 #define _TRANS_VRR_CTL_D 0x63420 +#define _TRANS_VRR_VSYNC_A 0x60078 #define TRANS_VRR_CTL(trans) _MMIO_TRANS2(trans, _TRANS_VRR_CTL_A) +#define TRANS_VRR_VSYNC(trans) _MMIO_TRANS2(trans, _TRANS_VRR_VSYNC_A) #define VRR_CTL_VRR_ENABLE REG_BIT(31) #define VRR_CTL_IGN_MAX_SHIFT REG_BIT(30) #define VRR_CTL_FLIP_LINE_EN REG_BIT(29) @@ -2087,6 +2093,11 @@ #define TRANS_VRR_STATUS2(trans) _MMIO_TRANS2(trans, _TRANS_VRR_STATUS2_A) #define VRR_STATUS2_VERT_LN_CNT_MASK REG_GENMASK(19, 0) +#define VRR_VSYNC_END_MASK REG_GENMASK(28, 16) +#define VRR_VSYNC_END(vsync_end) REG_FIELD_PREP(VSYNC_END_MASK, (vsync_end)) +#define VRR_VSYNC_START_MASK REG_GENMASK(12, 0) +#define VRR_VSYNC_START(vsync_start) REG_FIELD_PREP(VSYNC_START_MASK, (vsync_start)) + #define _TRANS_PUSH_A 0x60A70 #define _TRANS_PUSH_B 0x61A70 #define _TRANS_PUSH_C 0x62A70 From patchwork Fri Feb 16 14:20:24 2024 Content-Type: text/plain; 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16 Feb 2024 06:27:31 -0800 From: Mitul Golani To: intel-gfx@lists.freedesktop.org Cc: ankit.k.nautiyal@intel.com, dri-devel@lists.freedesktop.org, Mitul Golani Subject: [PATCH 6/6] drm/i915/display: Read/Write AS sdp only when sink/source has enabled Date: Fri, 16 Feb 2024 19:50:24 +0530 Message-Id: <20240216142024.1884258-7-mitulkumar.ajitkumar.golani@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> References: <20240216142024.1884258-1-mitulkumar.ajitkumar.golani@intel.com> MIME-Version: 1.0 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" Write/Read Adaptive sync SDP only when Sink and Source is enabled for the same. Also along with write TRANS_VRR_VSYNC values. Signed-off-by: Mitul Golani --- drivers/gpu/drm/i915/display/intel_ddi.c | 4 ++++ .../gpu/drm/i915/display/intel_display_device.h | 1 + drivers/gpu/drm/i915/display/intel_dp.c | 15 +++++++++++++++ drivers/gpu/drm/i915/display/intel_dp.h | 1 + drivers/gpu/drm/i915/display/intel_vrr.c | 7 +++++++ 5 files changed, 28 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index bea441590204..68cd49193d03 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3926,6 +3926,7 @@ static void intel_ddi_get_config(struct intel_encoder *encoder, { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); /* XXX: DSI transcoder paranoia */ if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder))) @@ -3972,6 +3973,9 @@ static void intel_ddi_get_config(struct intel_encoder *encoder, intel_read_dp_sdp(encoder, pipe_config, HDMI_PACKET_TYPE_GAMUT_METADATA); intel_read_dp_sdp(encoder, pipe_config, DP_SDP_VSC); + if (HAS_AS_SDP(dev_priv) && intel_dp_sink_as_sdp_supported(intel_dp)) + intel_read_dp_sdp(encoder, pipe_config, DP_SDP_ADAPTIVE_SYNC); + intel_audio_codec_get_config(encoder, pipe_config); } diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h index fe4268813786..6399fbc6c738 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.h +++ b/drivers/gpu/drm/i915/display/intel_display_device.h @@ -68,6 +68,7 @@ struct drm_printer; #define HAS_TRANSCODER(i915, trans) ((DISPLAY_RUNTIME_INFO(i915)->cpu_transcoder_mask & \ BIT(trans)) != 0) #define HAS_VRR(i915) (DISPLAY_VER(i915) >= 11) +#define HAS_AS_SDP(i915) (DISPLAY_VER(i915) >= 13) #define INTEL_NUM_PIPES(i915) (hweight8(DISPLAY_RUNTIME_INFO(i915)->pipe_mask)) #define I915_HAS_HOTPLUG(i915) (DISPLAY_INFO(i915)->has_hotplug) #define OVERLAY_NEEDS_PHYSICAL(i915) (DISPLAY_INFO(i915)->overlay_needs_physical) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 0759266e7bfb..5bd99fa8f200 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -119,6 +119,17 @@ bool intel_dp_is_edp(struct intel_dp *intel_dp) return dig_port->base.type == INTEL_OUTPUT_EDP; } +bool +intel_dp_sink_as_sdp_supported(struct intel_dp *intel_dp) +{ + u8 dpcd[DP_RECEIVER_CAP_SIZE]; + + if (drm_dp_read_dpcd_caps(&intel_dp->aux, dpcd)) + return -EIO; + + return drm_dp_as_sdp_supported(&intel_dp->aux, dpcd); +} + static void intel_dp_unset_edid(struct intel_dp *intel_dp); /* Is link rate UHBR and thus 128b/132b? */ @@ -4330,6 +4341,7 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder, VIDEO_DIP_ENABLE_SPD_HSW | VIDEO_DIP_ENABLE_DRM_GLK | VIDEO_DIP_ENABLE_ADAPTIVE_SYNC; u32 val = intel_de_read(dev_priv, reg) & ~dip_enable; + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); /* TODO: Sanitize DSC enabling wrt. intel_dsc_dp_pps_write(). */ if (!enable && HAS_DSC(dev_priv)) @@ -4347,6 +4359,9 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder, intel_write_dp_sdp(encoder, crtc_state, DP_SDP_VSC); + if (HAS_AS_SDP(dev_priv) && intel_dp_sink_as_sdp_supported(intel_dp)) + intel_write_dp_sdp(encoder, crtc_state, DP_SDP_ADAPTIVE_SYNC); + intel_write_dp_sdp(encoder, crtc_state, HDMI_PACKET_TYPE_GAMUT_METADATA); } diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index 530cc97bc42f..09ab313af896 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -180,5 +180,6 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp, struct link_config_limits *limits); void intel_dp_get_dsc_sink_cap(u8 dpcd_rev, struct intel_connector *connector); +bool intel_dp_sink_as_sdp_supported(struct intel_dp *intel_dp); #endif /* __INTEL_DP_H__ */ diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c index 2fa0004d00c7..86729e145991 100644 --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -192,6 +192,9 @@ void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + bool is_as_sdp_enabled = intel_de_read(dev_priv, + HSW_TVIDEO_DIP_CTL(cpu_transcoder)) & + VIDEO_DIP_ENABLE_ADAPTIVE_SYNC; /* * TRANS_SET_CONTEXT_LATENCY with VRR enabled @@ -210,6 +213,10 @@ void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state) intel_de_write(dev_priv, TRANS_VRR_VMAX(cpu_transcoder), crtc_state->vrr.vmax - 1); intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder), trans_vrr_ctl(crtc_state)); intel_de_write(dev_priv, TRANS_VRR_FLIPLINE(cpu_transcoder), crtc_state->vrr.flipline - 1); + + if (is_as_sdp_enabled) + intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder), + crtc_state->vrr.vsync_end << 16 | crtc_state->vrr.vsync_start); } void intel_vrr_send_push(const struct intel_crtc_state *crtc_state)