From mboxrd@z Thu Jan 1 00:00:00 1970 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 309DC26AAAB for ; Thu, 13 Nov 2025 03:57:45 +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=1763006267; cv=none; b=Mongn0ptc1oClhCbAkHqcM5qmVFkk+7NJMgQMRfx1m9nzKF/lYofOTbdCKsz9tslph3+QXyISD1yCVsi2+f+Gl1v7Mx0/OliPGDGqcZzHVW4atZRXOC4ItpU7zNW9wSl3u1HrpTGUc+BPAYbGIZ0bKcptWCSmEvwqKr7wKdzqb0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763006267; c=relaxed/simple; bh=5ACerTRITHaR7iMg8eezglL1j18rhtwjVIwxI61jjPw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=mpL6lAZJEDQj9qhBF6arE1fznpBnUa8O6hwWhD4UcTki9pADaqYia8a6lIgCPcUAVa5qKanEfl/UQDdhwczfiy53+zku1EgBJyhMNekuLyMEEb3FRaSya2Csda3FKqm8hUig9ix1czc7Wg0Qozi9jQGu2m8vpb6p/FxgvG3OQGI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=hG95+bLS; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=K1ks9hSf; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="hG95+bLS"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="K1ks9hSf" Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 5AD11IVJ3070321 for ; Thu, 13 Nov 2025 03:57:45 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= vGwPUge2YEPjjd039uXPYVYhS/a+SQX0HemxIV9Dfyw=; b=hG95+bLS3Q5XhZWm 09JlRJyWWqEQOL5kWvk3C9zrMV3Tr24rWdvAknnbhkLA6Fvd8U5aL5YzKypSFMU8 tr19b3/MTkgQYBd1dykfG+UIrIbW8HsWtFCE+/Tg40hcBMiFOpiXF3b5Ilbg5ieD 7H/0YmDRZZrHzyjhH5OdmTarIMQrpnfyIRC53ftbWQRO9HQQjsicjoMX0kgrbiq0 LVid+OXXoIkECI41/y9VE0MEB23zcheuRzHlokRYdp8kItMrKWkgUx4oqNXF/dQY fd93+1DccbNfNcOW9BCt3qc6BMZ6d4O5ik50eBV2WW5iU9pT3banFAlm3Dp0Mzl/ ZNTKRg== Received: from mail-pf1-f198.google.com (mail-pf1-f198.google.com [209.85.210.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4acqum32p3-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Thu, 13 Nov 2025 03:57:45 +0000 (GMT) Received: by mail-pf1-f198.google.com with SMTP id d2e1a72fcca58-7b043e2790bso965595b3a.2 for ; Wed, 12 Nov 2025 19:57:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1763006264; x=1763611064; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=vGwPUge2YEPjjd039uXPYVYhS/a+SQX0HemxIV9Dfyw=; b=K1ks9hSf6ngssvCSE+a0AhBvbprdkZZtThUI0Yup8xWAtjvUF7XjUqfu0svOMuqL89 LqvVqNDnXl6KiOwVpXc7K/frNgKADojpRjFvXC70L6VdyGcGU++CCd8IOa9x2gTeDYxq B3e9ZVebNYfPOEU3VZ1dRA8OY4n2LQwNZQ2KJ21tSZ+P1jsjcK3NLeZPXSyJPx7r1sl4 kTVHLW4vlCDWxFWvY8pikTR25ycpKdAIigRw1+TnOsJOJsc32Qi1JQ51ayR5U0Y1rRRp 59vmXcu7hFfx0oStILUz6gtxIkfwxOuoPAOSK6IBM7nx8x+IZMvFSrrx5NxKOKr+4zL+ S0XQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763006264; x=1763611064; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=vGwPUge2YEPjjd039uXPYVYhS/a+SQX0HemxIV9Dfyw=; b=XEpIQ5YnwnXBl1GB9N10Zm53khhYwj2b9/Vqzyb0Osm1ofBipjWgZIqt6WwA1DqT3Q +tVUxXaO1q6YZBixP1oRF+8PMpxlsEgCqr4tbQgZFvQo/YNt5WNjh6eLR3xSEU7v/EcS LRkj6FiHPVyx6lVm2DN2C2M6zbfmevGF7cT26CC96lJF7SqZLt1Arp1J3QUeqVTJ4Muc X/rNe1SfDRlG021WuNE3kzpgAWFJ5RjhfEOwitwnnhtbhTNlAkJFcSOiL6OrlLJ43wxC ou+R3uDRLvVbHxvAMjDisDnuuZGUE45KfW81FM7OrbSKZ1BypNwWY8KSsEt+ZirRqrQ6 ZQxw== X-Forwarded-Encrypted: i=1; AJvYcCUoirTWnpomQ//Do3cZFyuj8deKBzfWI/u7LjHtA+lie7zye6h1IRY+8FpOnx0yxvXK+Bj+W8WFaaA=@vger.kernel.org X-Gm-Message-State: AOJu0YytjRu1zHZjP8c/qAya5RJSRaCh0dXPYE7FYtifn7Gx86MoK7+1 Dm16eK7b6ByRIMiO5PLCickDOEJ8eWfmECNFWbG7ZiWSnG31RHYEatf5uwWx06Fg8KWxP+ihBQJ P63KOu6SyivbwCIlQm70wF3sTtLlbfbnQBLgYLRp9V2saGzNIseLLHunuaZKD1PI= X-Gm-Gg: ASbGncv9izhwpT+bJVnICSn/g5A0ehUGYlfR9CuQxDi1Aq8pjTNlXJF1KXJPc28OgG8 HtjK03PVgfeK6sxMn3XjYwz6YhzBKi3n2yw7rlm+i0XsXSVPuXRWxPueOGIzIXn/JhhLih+lOM+ c5LUTChLr/ieSQb9Od8lhDgSR1pCI7ZRwZ1bsfXCCayNzvQYGsrNi+BsRw6gRcREBxcFvGpTJOr 3DiQm8HAls0j9ZW67wCts91IjTb6yigOHM8NduaRYqB3g0iWIcZWS2MQ+VioesAxDNHApmwmA3Z xcArJJtgQ/cOuuGwGqEMT1C+WHLAX22gZh0GRh+kGrN++MeoFKEdi9+oWdUIUUWrZcVc9vXIjjk lqKSm+g0mjQCMubjryLvaYvfI6dby1TQ= X-Received: by 2002:a05:6a00:1399:b0:7b6:363b:c678 with SMTP id d2e1a72fcca58-7b7a27a429amr6423959b3a.6.1763006264035; Wed, 12 Nov 2025 19:57:44 -0800 (PST) X-Google-Smtp-Source: AGHT+IE7IduW8OEUCs1R9PNoNwVWicsKHQ9VQ4Fd1cEmT7M2Z91KTvLlfdEdEG5Ogm2o7odqrbFCWg== X-Received: by 2002:a05:6a00:1399:b0:7b6:363b:c678 with SMTP id d2e1a72fcca58-7b7a27a429amr6423928b3a.6.1763006263552; Wed, 12 Nov 2025 19:57:43 -0800 (PST) Received: from [10.218.35.45] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7b9250cda04sm603906b3a.19.2025.11.12.19.57.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 12 Nov 2025 19:57:43 -0800 (PST) Message-ID: Date: Thu, 13 Nov 2025 09:27:36 +0530 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: (subset) [PATCH v8 0/5] PCI: dwc: Add ECAM support with iATU configuration To: Bjorn Andersson Cc: cros-qcom-dts-watchers@chromium.org, Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lorenzo Pieralisi , Manivannan Sadhasivam , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Bjorn Helgaas , Jingoo Han , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, quic_vbadigan@quicinc.com, quic_mrana@quicinc.com, quic_vpernami@quicinc.com, mmareddy@quicinc.com, Konrad Dybcio References: <20250828-ecam_v4-v8-0-92a30e0fa02d@oss.qualcomm.com> <176160465177.73268.9869510926279916233.b4-ty@kernel.org> Content-Language: en-US From: Krishna Chaitanya Chundru In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTEzMDAyNCBTYWx0ZWRfX6m1uUppDmp1v X0QQB+za04zF/yYRFwMagyKYT/MPBhKDqsWI5i8Sn7/puRsAZ8kkjMtylbJd62QGtQRjR9F28ua 3usWNRFXTkcMSwgc6Kt+F4CFb1P2QFZMIMGyHIXABQYJM9MA7qCJHmPs5T/7mgUnKc4roFg+yeG KThbp21293IW+STNKVDSJtrqAZml2MZ5VpPr9Mlh7bFiXRPp12He0Uh59dqxlQs76ghEtP2IQCk qkSCmRP+SnBNkZfaV14oPWiUTGeCti+V+4f2pjn4X7iZGviD43+n79tAOG2p4U0invZc0Mxej6d w/LzLcXnQS+L9cswwEEskt8xjZzrAvb+ZvIU2rlyAkby9hhtSC9KjuQqUqO10wPZwPQQ0BxAI2U LPQNf2Wzi8uRSc7Xnw38BFoIhwpl8Q== X-Proofpoint-GUID: Q0EHYQAMT80dJDjrjtwRFWn_jo97T_T6 X-Proofpoint-ORIG-GUID: Q0EHYQAMT80dJDjrjtwRFWn_jo97T_T6 X-Authority-Analysis: v=2.4 cv=KeTfcAYD c=1 sm=1 tr=0 ts=69155739 cx=c_pps a=m5Vt/hrsBiPMCU0y4gIsQw==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=oNbEpEU07NhVOHX3m2YA:9 a=QEXdDO2ut3YA:10 a=IoOABgeZipijB_acs4fv:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-12_06,2025-11-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 clxscore=1015 bulkscore=0 suspectscore=0 impostorscore=0 lowpriorityscore=0 spamscore=0 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511130024 On 11/10/2025 11:51 PM, Bjorn Andersson wrote: > On Tue, Oct 28, 2025 at 11:12:23PM +0530, Krishna Chaitanya Chundru wrote: >> On 10/28/2025 4:07 AM, Bjorn Andersson wrote: >>> On Thu, 28 Aug 2025 13:04:21 +0530, Krishna Chaitanya Chundru wrote: >>>> The current implementation requires iATU for every configuration >>>> space access which increases latency & cpu utilization. >>>> >>>> Designware databook 5.20a, section 3.10.10.3 says about CFG Shift Feature, >>>> which shifts/maps the BDF (bits [31:16] of the third header DWORD, which >>>> would be matched against the Base and Limit addresses) of the incoming >>>> CfgRd0/CfgWr0 down to bits[27:12]of the translated address. >>>> >>>> [...] >>> Applied, thanks! >>> >>> [1/5] arm64: dts: qcom: sc7280: Increase config size to 256MB for ECAM feature >>> commit: 03e928442d469f7d8dafc549638730647202d9ce >> Hi Bjorn, >> >> Can you revert this change, this is regression due to this series due to >> that we have change the logic, > How is that possible? This is patch 1 in the series, by definition it > doesn't have any outstanding dependencies. The regression is due to the drivers changes on non qcom platforms. - Krishna Chaitanya. > I've reverted the change. > > Regards, > Bjorn > >> we need to update the dtsi accordingly, I will send a separate for all >> controllers to enable this ECAM feature. >> >> - Krishna Chaitanya. >> >> >>> Best regards,