From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 15488266B46; Mon, 20 Jul 2026 21:31:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784583064; cv=none; b=aRMAO2QPF4S38Iuhpt4lTfurAzD0lkGHFwdlTGnUGZE8b33m3NI7xVJoCQOCOq3rLe3g4l9d2gOqBOMxhgmb27TDCvaIeam7tDUYKJxwu1jOIG6sIgXxBIvQPkadzkPoSlMuckzKsi8Chcq5RMoy2LOhzo32lnDQtTaxKlsfV/s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784583064; c=relaxed/simple; bh=WiugJUWrwIjTFZbj5jNlsSMkzX65MiC5rSX3OeS0BRw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=OJ1dRcyRsObTAZkL3nz0anl5/qnuUDbIv2NoQr96mCrA1OUjW5/YBM9AhRiJXl24hC+MyQXHcF4cglo9ZiUQxfzsJlRyooiIEHWbGhuAgR4Z0OmIPR1FSD8/ky2g+Z/bbGDWhWRrYRaAQlz9x66KyC8Y8760C58uENjyjdizMuc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jNqGNQxS; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jNqGNQxS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE8071F000E9; Mon, 20 Jul 2026 21:31:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784583062; bh=5bDKsS4X2DOvmiKswxP7LxCXe27fjucwq85p9QD/fnI=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=jNqGNQxSXqoqYqFgClffrx9FtgPaQpWT6mOBaC26UScRvt4BYVCGTRzBuR0djIE7h yLNGD7mGLzNKfh5lwMpRNn+IqEsMBcJhJ+RAFWKWAt8WjCncZpj+fL1J8lxpeW57P+ oWbd1tmWgrgkkHhdIhj/8dDUKxseLbqWyLRJ0g2X2sTTTFq4M2vnedXMTR3N1UcAeY BAN375mDk6MQmmUDm6/cy/TL4ZDMJbwKg9USRNM3zsnOpcoS6HPEDNwIHWLRb+sUMP cf+Nk5wwSw7XvrZvIK8hfSDI+F19qV0XC23SuujCP+huRBk9aDFn0mHzcxLicVXb1n R7nmAH30px+Zg== Message-ID: <1bc74fac-859b-46fd-91ef-16c40c8f9a7f@kernel.org> Date: Mon, 20 Jul 2026 22:31:00 +0100 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: =?UTF-8?Q?Re=3A_venus=3A_encoder_job_execution_hard-resets_SoC_on_S?= =?UTF-8?Q?M7325_=28sc7280-compatible=29_=E2=80=94_extensive_analysis=2C_nee?= =?UTF-8?Q?d_wrapper/GDSC_insight?= To: Kirill Ermolitskiy <00vopoj00@gmail.com> Cc: linux-media@vger.kernel.org, vikash.garodia@oss.qualcomm.com, dikshita.agarwal@oss.qualcomm.com, linux-arm-msm@vger.kernel.org References: <035192d8-9d6e-4e04-ad1b-56f52c11933d@kernel.org> <36vhfeWCV4PqtDGfEur9lR9MVGp1d_CMjIb_Wr9zTFbeNM9QPzCJsn1TzyTYnZfbku-iwBZo-eDdLasYJ5hE5Q==@protonmail.internalid> From: Bryan O'Donoghue Content-Language: en-GB Autocrypt: addr=bod@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 20/07/2026 21:41, Kirill Ermolitskiy wrote: > Adapted Daniel's patch to kodiak: added the reserved-memory node with > iommu-addresses covering [0, 0x25800000) for &venus plus a second > memory-region entry. Since downstream yupik's non-secure pool is exactly > 0x25800000-0xe0000000 and venus runs with a 32-bit DMA mask (top-down > allocations land above 0xe0000000), I additionally reserved > [0xe0000000, 4GiB). Both reservations confirmed via the iommu group's > reserved_regions: > > 0x0000000000000000 0x00000000257fffff reserved > 0x00000000e0000000 0x00000000ffffffff reserved > > Encoder still hard-resets identically at the first FTB. So on kodiak it > doesn't look like an IOVA-window/SID issue — or at least not only that. > > One more finding from diffing against downstream: mainline's > sm7280_reg_preset zeroes the whole of 0xb0088 (AON region), while > downstream applies it with mask 0x11, preserving the remaining bits. On > this device the register holds 0x3 at core boot, so mainline does > clobber a live bit. Preserving it (read-modify-write with downstream's > mask) doesn't change the encoder outcome, but it's probably worth fixing > regardless — same for video_cc_xo_clk, which downstream marks > CLK_IS_CRITICAL and mainline videocc-sc7280 doesn't register at all > (ported it, confirmed running at 19.2 MHz; no behavioral change either). > > That exhausts what I can usefully test blind: DT constants (fw region, > SMMU SID, CP ranges, clocks, GDSC offsets — all match downstream), power > sequencing (hwmode / forced SW / GDSC always-on / legacy MMCC handshake / > GDSC wait values), XO clock, max CX votes via required-opps, IOVA > windows, two firmware stacks (old and coherent OS2.0.8.0 TZ+vpu pair), > and both venus and iris — every variant that actually executes the > encode engine resets the SoC at the first frame, silently, below the > kernel (PSHOLD warm reset). Full two-sided HFI traces of healthy decode > and dying encode sessions available; happy to test patches on hardware. Eh it's not clear to me if you are running the venus or iris driver. Both are supported - can you flip the switch in your defconfig ? Perhaps you are testing both already - if not please try the other driver. --- bod