From patchwork Fri Feb 16 23:02:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paloma Arellano X-Patchwork-Id: 773412 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7AA5D1487D7 for ; Fri, 16 Feb 2024 23:03:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708124586; cv=none; b=OamqBndfyYnk2t9FmPJWDQG2JU94p6NgrwZcsz3whq08QcwEaZPweHqvKWYns9t27W+8E+RJVAidHQ/bKzQFSIZziVz+BbZDnzfpwRTVO6Cb6R/BPc2s5bq6F26sCqmuFBQ3XQSIZ1RGB4/TMGSYYw+3UHGrIvGWrUi0Frre6mk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708124586; c=relaxed/simple; bh=SHHeK3LAiZDUGsm7xDRBqidVEf2gSgSZBwmwgVzIwCw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LL2X4mxxIUaGk8ayGVXni9v88f1rUba0fRDH5hpgTlEKgFFmf5G5uWfHPJIEnl0mSgpQ1JC8UCSE2yASbqmL0oCneFcWv9URbihVrmOY6gNhajYB8DYT3G3A9Ts58whb+wJEau+7n3PoLi8xl3A6+6wSpb/5g5GldlH3bwLxZ6E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=LR1eClzu; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="LR1eClzu" Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 41GJo7RD019931; Fri, 16 Feb 2024 23:02:59 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= qcppdkim1; bh=85IAUtYF42P553jD2yDS4mQdIRyIFmxchzCmhFHZPjc=; b=LR 1eClzucFzGRT7bPqIRlAWuJyuN+eD96uH7Q0Hna9p75cczP43dwGwMCqoSQSNx8c HdrKL1FFpoCHhXF5H/Zje9SQQZL5h8YqNU18bnm5wcsh/9a31Orv7yQIso5KaNui 79pWoXH0gC2An6rkvfwE9fPt2zOlJUVBwd/gCX126KGCcwBs5Z/rjD97M+u2QrN9 CY0kanfrIzWOKGLsL+/rRHN6rgYl65o0T0VxEa5J/UbZp0GT1RA04pS3xFkEDsWt JGYPiRXrm76lhU8CgvXM+uYOXGcw9IoWGvtyBAkx6/wrN/xJ3N0OsnIB7Ebrc0SV Zxy2uevATLtlqXa9P6Hg== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3wa6nk9axu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 16 Feb 2024 23:02:58 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 41GN2vGd032723 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 16 Feb 2024 23:02:57 GMT Received: from hu-parellan-lv.qualcomm.com (10.49.16.6) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Fri, 16 Feb 2024 15:02:57 -0800 From: Paloma Arellano To: CC: Paloma Arellano , , , , , , , , , , , Subject: [PATCH v4 15/19] drm/msm/dp: enable SDP and SDE periph flush update Date: Fri, 16 Feb 2024 15:02:03 -0800 Message-ID: <20240216230228.26713-16-quic_parellan@quicinc.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20240216230228.26713-1-quic_parellan@quicinc.com> References: <20240216230228.26713-1-quic_parellan@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01a.na.qualcomm.com (10.47.209.196) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: mmHMTflQi5kUAGAUmpGfge770VtiLgtb X-Proofpoint-ORIG-GUID: mmHMTflQi5kUAGAUmpGfge770VtiLgtb X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-16_22,2024-02-16_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 phishscore=0 mlxlogscore=706 priorityscore=1501 lowpriorityscore=0 spamscore=0 bulkscore=0 mlxscore=0 adultscore=0 clxscore=1015 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401310000 definitions=main-2402160182 DP controller can be setup to operate in either SDP update flush mode or peripheral flush mode based on the DP controller hardware version. Starting in DP v1.2, the hardware documents require the use of peripheral flush mode for SDP packets such as PPS OR VSC SDP packets. In-line with this guidance, lets program the DP controller to use peripheral flush mode starting DP v1.2 Changes in v4: - Clear up that DP_MAINLINK_CTRL_FLUSH_MODE register requires the use of bits [24:23] - Modify macros DP_MAINLINK_FLUSH_MODE_UPDATE_SDP and DP_MAINLINK_FLUSH_MODE_SDP_PERIPH_UPDATE to explicitly set their values in the bits of DP_MAINLINK_CTRL_FLUSH_MODE_MASK Changes in v3: - Clear up that the DP_MAINLINK_FLUSH_MODE_SDE_PERIPH_UPDATE macro is setting bits [24:23] to a value of 3 Changes in v2: - Use the original dp_catalog_hw_revision() function to correctly check the DP HW version Signed-off-by: Paloma Arellano --- drivers/gpu/drm/msm/dp/dp_catalog.c | 17 +++++++++++++++++ drivers/gpu/drm/msm/dp/dp_catalog.h | 1 + drivers/gpu/drm/msm/dp/dp_ctrl.c | 1 + drivers/gpu/drm/msm/dp/dp_reg.h | 6 ++++++ 4 files changed, 25 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c index c6e57812a239e..6619a20ffa923 100644 --- a/drivers/gpu/drm/msm/dp/dp_catalog.c +++ b/drivers/gpu/drm/msm/dp/dp_catalog.c @@ -440,6 +440,23 @@ void dp_catalog_ctrl_config_misc(struct dp_catalog *dp_catalog, dp_write_link(catalog, REG_DP_MISC1_MISC0, misc_val); } +void dp_catalog_setup_peripheral_flush(struct dp_catalog *dp_catalog) +{ + u32 mainlink_ctrl, hw_revision; + struct dp_catalog_private *catalog = container_of(dp_catalog, + struct dp_catalog_private, dp_catalog); + + mainlink_ctrl = dp_read_link(catalog, REG_DP_MAINLINK_CTRL); + + hw_revision = dp_catalog_hw_revision(dp_catalog); + if (hw_revision >= DP_HW_VERSION_1_2) + mainlink_ctrl |= DP_MAINLINK_FLUSH_MODE_SDE_PERIPH_UPDATE; + else + mainlink_ctrl |= DP_MAINLINK_FLUSH_MODE_UPDATE_SDP; + + dp_write_link(catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl); +} + void dp_catalog_ctrl_config_msa(struct dp_catalog *dp_catalog, u32 rate, u32 stream_rate_khz, bool fixed_nvid, bool is_ycbcr_420) diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.h b/drivers/gpu/drm/msm/dp/dp_catalog.h index 4bdc087410a68..8ad0672157df8 100644 --- a/drivers/gpu/drm/msm/dp/dp_catalog.h +++ b/drivers/gpu/drm/msm/dp/dp_catalog.h @@ -98,6 +98,7 @@ void dp_catalog_ctrl_config_ctrl(struct dp_catalog *dp_catalog, u32 config); void dp_catalog_ctrl_lane_mapping(struct dp_catalog *dp_catalog); void dp_catalog_ctrl_mainlink_ctrl(struct dp_catalog *dp_catalog, bool enable); void dp_catalog_ctrl_psr_mainlink_enable(struct dp_catalog *dp_catalog, bool enable); +void dp_catalog_setup_peripheral_flush(struct dp_catalog *dp_catalog); void dp_catalog_ctrl_config_misc(struct dp_catalog *dp_catalog, u32 cc, u32 tb); void dp_catalog_ctrl_config_msa(struct dp_catalog *dp_catalog, u32 rate, u32 stream_rate_khz, bool fixed_nvid, bool is_ycbcr_420); diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c index a42b29f9902c1..a17b9a22858da 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c @@ -165,6 +165,7 @@ static void dp_ctrl_configure_source_params(struct dp_ctrl_private *ctrl) dp_catalog_ctrl_lane_mapping(ctrl->catalog); dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, true); + dp_catalog_setup_peripheral_flush(ctrl->catalog); dp_ctrl_config_ctrl(ctrl); diff --git a/drivers/gpu/drm/msm/dp/dp_reg.h b/drivers/gpu/drm/msm/dp/dp_reg.h index aa9f6c3e4ddeb..3835c7f5cb984 100644 --- a/drivers/gpu/drm/msm/dp/dp_reg.h +++ b/drivers/gpu/drm/msm/dp/dp_reg.h @@ -6,6 +6,9 @@ #ifndef _DP_REG_H_ #define _DP_REG_H_ +#include +#include + /* DP_TX Registers */ #define REG_DP_HW_VERSION (0x00000000) @@ -102,6 +105,9 @@ #define DP_MAINLINK_CTRL_ENABLE (0x00000001) #define DP_MAINLINK_CTRL_RESET (0x00000002) #define DP_MAINLINK_CTRL_SW_BYPASS_SCRAMBLER (0x00000010) +#define DP_MAINLINK_CTRL_FLUSH_MODE_MASK GENMASK(24, 23) +#define DP_MAINLINK_FLUSH_MODE_UPDATE_SDP FIELD_PREP(DP_MAINLINK_CTRL_FLUSH_MODE_MASK, 1) +#define DP_MAINLINK_FLUSH_MODE_SDE_PERIPH_UPDATE FIELD_PREP(DP_MAINLINK_CTRL_FLUSH_MODE_MASK, 3) #define DP_MAINLINK_FB_BOUNDARY_SEL (0x02000000) #define REG_DP_STATE_CTRL (0x00000004)