From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.221.72 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792750596; b=egocY1FhmVdbl9jtnEDgCCq4/W/SDeHiQ6Z85F2qhAM8EUy1vcf/HFF/Bvfc4UDTieSd /P/FeRKxWisQQ+12CdlLS3cw8QxWve7MkYXUKLtSxP9xHHKCrIYCw6XDYgTnQzKvC9OiG uLfD6wFG+KgTHcJjpt+lB9VFyZImgLrWWWRI6xpAU86lp6V45GxFJ4hFAHPWTipqhAvpu dvcgjAqwmympLCiF2bF2quDXQZBQ3xukQZy0kH8eklTtKJZ37i8weYz8iqTRSF4+lA0wd 2C4/yrJtO1/bH8j2CUxCQt1OD9/f0mHzoYfDiJan8gGKOKU2KXT+GLB2iLhV3FM8+ZQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792750596; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Received:Date:Mime-Version: X-Mailer:Message-ID:Subject:From:To:Cc:Content-Type; bh=IMobJmbhH1aWl0A3qqegt8ms7R2Y7oe1+fBk/D40vUc=; b=MmIrkhyZ5H4IZwkThBkvXNPc0JfmtZz9cLh/ov1SgFW6uRVgxsfUSEJsVcyv0QSMe27s g+bfXYxNE1U0tlpYWCmvcXQ1OfuElEcSmkK9HKJdnm94CTC2Hvvrx7HNx6NPv8LlIBCSk Jjt6p5O3pzaLScncvvz7dbR/bkp2IvBa4L6q4j3AJptFw4gIxKs0IX/1XZPLhdWokcIQD Iu7f2DPK6MiC6eCVZlMFNj3kI4XhsANO1N77bhr76XcWGXUJUJNqRLCjgH9fGYk95XsQa dmwdTV18eWJ5s5Tdpl8HI0Rhq1DkqmQZFd6TYelExoQOcrHtJp++WV0E4N9vf/RyG8Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=google.com; spf=pass smtp.mailfrom=flex--smostafa.bounces.google.com; dkim=pass header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20251104 header.b=jh7CN3Bk; arc=none smtp.remote-ip=209.85.221.72 Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ADEB1606A324 for ; Fri, 23 Oct 2026 10:16:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org ADEB1606A324 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--smostafa.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20251104 header.b=jh7CN3Bk Received: by mail-wr1-f72.google.com with SMTP id ffacd0b85a97d-48dfa054f26so562433f8f.2 for ; Fri, 23 Oct 2026 03:16:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1792750594; x=1793355394; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:mime-version:date:from :to:cc:subject:date:message-id:reply-to:content-type; bh=IMobJmbhH1aWl0A3qqegt8ms7R2Y7oe1+fBk/D40vUc=; b=jh7CN3BkAAtOpkqLz1LO1Naz1RHvXEQYg8p34aWKEtKHt4q40/lpwzFaNhj/H3izKh Wa9pBhurUh4H0bunQnyYBAHwCvs9pCoFefQprPlWa7FE81jVGuEpcrRjaqbZTnXlOwvX qaEtYq1z0xHLITuExUkdcupfR/AnIPDb2M8lqwsIOIvJPQF5DjQ79IX15NnLP1PSgrxl 5cEyBXiwrD+n8E6PNP8RSz1V03bB0jgfSZUqqmG8zS3xwrlDQzjumecOH/FXFZPZMcsw 7nFh2OHKhwDEsEeM6jklL+EGCM6dN1Gug4l2wLXCUDqBSpYs+pU5gy6SkMczonsqUuf7 hqCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792750594; x=1793355394; h=content-type:cc:to:from:subject:message-id:mime-version:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=IMobJmbhH1aWl0A3qqegt8ms7R2Y7oe1+fBk/D40vUc=; b=hrbpDFbuE9wC5CEGMKl1NmLjLnmgT0B3rAU/upFpllZ7GSjWonPeUU21UnUgyMc7+y vdRJOQC16oEQf6WDCmE7FfE7Zb+IiDnAK5bAC4LP9ElS1CSmwvZB0oDGVbXUBdGuELSw op89BUv0zEHhjYUvgrN1mKf8RvvhOVaKgyPCUJgw7kD9A/259xkzUGPyNVYDo6AtEUfj fLdoUEZLf+gOQAYsFFElZERdUXTGhymUzgdwf0fU/2O6HyqYPmkVY4CBtHyFi90+OP7w eXLgIci/MttteiuwEaCwPewe8jJUX1zpEti2Gt9bKq8zf4Z3B5XpyQe633rIcKnmRFcU RZxw== X-Forwarded-Encrypted: i=1; AKwUvBwQXy7eNw/FtF/k1Go1tuganZDo/C8nKQduxTJjJRHe4cfR51EiThFJm1W0C9rvZErVDivWzLP5K0k=@vger.kernel.org X-Gm-Message-State: AFq9FYI3KcYAJFUT7x9ekSF2yhK4xaGmjI8uPbjJJgdRfsq+vQBVnogh BJwcgxBDb3GpF+FF5xG8RBYBS7w091hrSzKaPSAL4evRJNHidvqq4+EgMQUYZTEHTsIDkO/QkDA gWNd7a6kTxF956w== X-Received: from wmdd2.prod.google.com ([2002:a05:600c:a202:b0:4a2:a3d:fdbe]) (user=smostafa job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:8b23:b0:4a1:fe26:24f0 with SMTP id 5b1f17b1804b1-4a211edd264mr29780255e9.20.1792750593923; Fri, 23 Oct 2026 03:16:33 -0700 (PDT) Date: Fri, 23 Oct 2026 10:15:34 +0000 X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list Mime-Version: 1.0 X-Mailer: git-send-email 2.56.0.307.g5fe7bd680c-goog Message-ID: <20261023101536.3965344-1-smostafa@google.com> Subject: [PATCH v2 0/2] dmaengine: qcom: bam_dma: Fixes for unbind From: Mostafa Saleh To: linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org, vkoul@kernel.org, Frank.Li@kernel.org, bartosz.golaszewski@oss.qualcomm.com, Mostafa Saleh Content-Type: text/plain; charset="UTF-8" On Lenovo Mini-x Gen 10 (X1P42100 based) I am using VFIO-platform to assign the QCE/BAM to VMs. During unbind: echo 1dc4000.dma-controller > /sys/bus/platform/drivers/bam-dma-engine/unbind echo 1dfa000.crypto > /sys/bus/platform/drivers/qcrypto/unbind I see a system reset quite often, looking more into this, that seems to be related to runtime PM, with those fixes I don't see that anymore. This patches apply on linux-next. Changes in v2: v1: https://lore.kernel.org/all/20261020180804.140766-1-smostafa@google.com/ - Collect Frank Rb - Drop call to pm_runtime_dont_use_autosuspend() Mostafa Saleh (2): dmaengine: qcom: bam_dma: Take a PM ref at remove() dmaengine: qcom: bam_dma: Do not touch remote BAM in remove() drivers/dma/qcom/bam_dma.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) base-commit: bd1ecbb61afefc6a8b876ccbc31e9228b44e9eab -- 2.56.0.307.g5fe7bd680c-goog