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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b935aee3ab4sm870864166b.61.2026.03.05.02.02.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 05 Mar 2026 02:02:04 -0800 (PST) Message-ID: <24685144-c1bb-4084-80de-40989efbf4a1@oss.qualcomm.com> Date: Thu, 5 Mar 2026 11:02:01 +0100 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 0/7] arm64: dts: Drop CPU masks from GICv3 PPI interrupts To: Geert Uytterhoeven Cc: Marc Zyngier , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Peter Griffin , =?UTF-8?Q?Andr=C3=A9_Draszik?= , Tudor Ambarus , Alim Akhtar , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Dinh Nguyen , Bjorn Andersson , Konrad Dybcio , Thierry Reding , linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-samsung-soc@vger.kernel.org, imx@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org References: Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=bdlmkePB c=1 sm=1 tr=0 ts=69a9549d cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=RQncaQt55EiIgf5kr6IA:9 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 X-Proofpoint-GUID: hwR6hajhe4_CfYbgI6sdQaCb65cFcfa7 X-Proofpoint-ORIG-GUID: hwR6hajhe4_CfYbgI6sdQaCb65cFcfa7 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzA1MDA4MCBTYWx0ZWRfX6w6cVh1Wz2aN VpvrtAx+jN6SHXxJvc5h+Kr8HlybjscUxTEQO9ZwJzeTuaqK1Bi3XhHuntRfOK1ElAdpOIO8SJD WHf8ZB99KyELJXocNh34UjkY/XMxVKck13roQgNplZJku6QciCfaSAZJ57CzWLMBq4cr//CQ/YS GO54ButPt1Bhqin72pcmTzHqQCrswCURTJvNNDg98YvqP2O6bC7KYleYDzoCVeZwUvsb+DUxs82 aanQACZTtK6JByXdXR84UdNvlL7XRDOeojD6IX4V+QD1aMVumg4W6xDs8zyqik1+gpV+wlmZOM3 JvPKuM5vaEUnc0Fsu4eQW/wGWsleYQKtxq3Kgzd63uqyVfM4o9PdcRss1/QKqAJtxTYj9QPr5wc 2t6DXkudqAoIe/81v1M38Rmos/gekUgcR2tpy0+TWhKZSV9QHCu450kdAxlZ4xxHmQejw0Wc90D r8U8E8Y0kBMTAXBXj9w== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-05_02,2026-03-04_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 suspectscore=0 malwarescore=0 bulkscore=0 clxscore=1015 impostorscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603050080 On 3/5/26 10:55 AM, Geert Uytterhoeven wrote: > Hi Konrad, > > On Thu, 5 Mar 2026 at 10:33, Konrad Dybcio > wrote: >> On 3/4/26 6:10 PM, Geert Uytterhoeven wrote: >>> Unlike older GIC variants, the GICv3 DT bindings do not support >>> specifying a CPU mask in PPI interrupt specifiers. Hence this patch >>> series drop all such masks where they are still present. >> >> I'm having trouble finding where that's used on pre-v3 even.. does >> that actually get processed on the older iterations? > > I had noticed the same, and had asked maz on IRC. > His answer: > > "so far, we have never seen a GICv{1,2} system that didn't have all > of its PPIs > connected to the same set of devices." lol, that's fun! Konrad