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Tue, 20 May 2025 06:47:52 +0000 (GMT) Received: from nasanex01c.na.qualcomm.com (nasanex01c.na.qualcomm.com [10.45.79.139]) by NASANPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 54K6lpxk012288 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 20 May 2025 06:47:51 GMT Received: from [10.239.29.49] (10.80.80.8) by nasanex01c.na.qualcomm.com (10.45.79.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 19 May 2025 23:47:47 -0700 Message-ID: <70ffec25-17c9-4424-9d0b-da6560f7160d@quicinc.com> Date: Tue, 20 May 2025 14:47:45 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: sc7280: Add dma-coherent property for fastrpc nodes To: Dmitry Baryshkov CC: , , , , , , , , , References: <20250516110029.1637270-1-quic_lxu5@quicinc.com> <20250516110029.1637270-4-quic_lxu5@quicinc.com> Content-Language: en-US From: Ling Xu In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01c.na.qualcomm.com (10.45.79.139) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Authority-Analysis: v=2.4 cv=XKEwSRhE c=1 sm=1 tr=0 ts=682c2598 cx=c_pps a=JYp8KDb2vCoCEuGobkYCKw==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=GEpy-HfZoHoA:10 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=COk6AnOGAAAA:8 a=uAc4Gv8VY3djhvJMLTUA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-ORIG-GUID: kJCKIAIyyW83v5VBxioFhTURYeSrPkEN X-Proofpoint-GUID: kJCKIAIyyW83v5VBxioFhTURYeSrPkEN X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTIwMDA1NCBTYWx0ZWRfX91fsj2tlCpF5 y2eGB4xiv4SdqiS7nH01b66baNepR/A5RS8t3jNnbpo3zmQUL1sfNxWhq53wrbrFG40lghNGCKT iYT3pqmdBKqVD382THLBcIzod0in8snZzL50tUPytPevLubwZe/Uo8dFBsz+xNTVeultNLo7fSU 9ECRoGD5BVqUiXvOV+zkMWRQiISeXPXtezhyw2vyz4e2qR27z2NCofFObTZL3qKBRJLkbpbI6Um YxG5Is+4SS9M4Rs6UwI8014y6HsrZ7mRGHjZEgwgTg5lIxlGhn7TqSS8epXBZshV+xQh10bocOY ULkcJBQ0q1t61Qa49ZX6UnwQn8xCtub22C/O6dIQy2LbuYmQFbVrcMpKNPxcdhCO+WoNlsrCfQB StXP/2DLvJzFW5VdvWb5U7VKH2u8hBQ+PjXMR9l0pGY/lOTUifBCR2kz/uRzZZ4aORqgOA9U X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-20_03,2025-05-16_03,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 clxscore=1015 spamscore=0 suspectscore=0 malwarescore=0 adultscore=0 mlxscore=0 mlxlogscore=736 phishscore=0 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505070000 definitions=main-2505200054 在 5/17/2025 5:48 AM, Dmitry Baryshkov 写道: > On Fri, May 16, 2025 at 04:30:29PM +0530, Ling Xu wrote: >> Add dma-cherent property to fastrpc context bank nodes to ensure that >> the DMA operations for these nodes are coherent. > > Does it apply to all firmware versions? No, it's not applicable for all the firmwares, especifically for older one. This is only applicable where IO coherency is enabled. >> >> Signed-off-by: Ling Xu >> --- >> arch/arm64/boot/dts/qcom/sc7280.dtsi | 15 +++++++++++++++ >> 1 file changed, 15 insertions(+) >> > -- Thx and BRs, Ling Xu