From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794234285; b=r3EbXNTRzfsd+jWjhta6/0guLhDQJDBjZ4r8SvLE4p4lAvpV+9fvSzavUK4tT0QjLbje /N2sLbWugaPJtuRi6QGwxcLbzDPqbrLljRO6sY3UwPKQHhytFY7YGEWBuiN+bMxuGPlrM iYtVwW6K4VZfLfF6EFw1b3LkFk2zeARydUxEgKDk7rRM274LssPNW9tbP3Uno+sNvF+pJ PrZlOqe09l6smHJsjc+OxosJY3L4ph9v3wSS7ITHPF3riAkFvI9tgRpxn52amZooJIXiB YcHrU+r3/iVw8umE44EAUhq5t7FZ1NUqJOrODevvuVTMmufMoWUq7OUZe7h9/bWIUpg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794234285; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=HZwCReN5TfpP/7UgtdfoNSUQJuUtcpW5E6BDQOlTEDs=; b=B0iWdYqTpAsBuwTNOUyupkzfSX0RVLrRwrid40C6eaFg6Pb3k+kL+8jyqGhTWtXXaN6F MJnVjVmFx1JXnqa+joeupCy70axbsN2+W3pV9jq9I9UAffOLP0B7zeZr62Y9GtkeFEVzt B8nEXdA4Pnp6uIrN/zOungwApVfgI3Fl/sKDfp+tu8reMKjDcINWsPMhLjnvhQgRm+A/N F11LhECayajcfExErM/BqhXchN2/kc537Sp2+RYySzEldh+IAf1fXW5e1XcfFjKkbuIdD LHGowkIQ7MApyUoPU+fWI5aNzARDf40NtAJD/RmHWWU+wWVDHq2M/oh2rSCJrgDLcJg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=bTHQe6Wy; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 67332606D80F for ; Mon, 9 Nov 2026 14:24:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=bTHQe6Wy Received: by smtp.kernel.org (Postfix) with ESMTPSA id C3FCB1F0089F; Mon, 9 Nov 2026 14:24:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794234285; bh=HZwCReN5TfpP/7UgtdfoNSUQJuUtcpW5E6BDQOlTEDs=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=bTHQe6WyCD2PN76oe0NakU0wWJ2SzDnnyBIriO3GtdG8dAuwkvpkzLT8Au2tc3Zra l+e0fl3klvXSGzI3ledA34/J5QrRg7NvhDLfHX+rSdVDLJsij9gTrGSKtL/AnCMHzq sct3pUvwsTTfKs04OD3Y6LQg+QwC/1tCTPTzf6ZnTd50ZDWZLp7vRqfjKx7dpzGjPf W2DG2NIM1AONa6X+1p36NAU0++m8gD7TBUf+ObQnFe6LJD4q08OdF6iry87HHYvFJJ ACwNeI3btAPjLfQui/yiZP2AQPSrZaoVvS9XLJo9/wknE1VS1TD/7ziiW6dePJnwq7 735BUxH12B20A== Date: Mon, 9 Nov 2026 04:24:43 -1000 From: Tejun Heo To: Tvrtko Ursulin Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel-dev@igalia.com, Boris Brezillon , Chia-I Wu , Liviu Dudau , Matthew Brost , Steven Price Subject: Re: [PATCH v8 5/6] workqueue: Imply strict CPU affinity for WQ_RT Message-ID: References: <20261104095225.32654-1-tvrtko.ursulin@igalia.com> <20261104095225.32654-6-tvrtko.ursulin@igalia.com> <6b489363-274f-426a-9143-6ed5593a0c19@igalia.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6b489363-274f-426a-9143-6ed5593a0c19@igalia.com> Hello, On Mon, Nov 09, 2026 at 09:52:17AM +0000, Tvrtko Ursulin wrote: ... > apply_workqueue_attrs() would work in theory but is not exported for modules > which is required for panthor. Oh, please feel free to export them. > Regarding the flag reorganization, what would require expanding to u64? > Unless I am missing something I see currently only 20 bits are used. Right, it might not be strictly necessary. Just something we might as well do while at it if we want to encode a bunch of scope / attrs in the flags. > Although on a higher level my feeling is that panthor could first try with > WQ_RT as is, and we consider adding strict affinity, via either of the above > options, if that will not be good enough. I see. Thanks. -- tejun