From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (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 7641C17A2E8 for ; Sun, 26 Oct 2025 08:27:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761467247; cv=none; b=FBymTu0AfFk5e4ugr03HQis1KMTMT3FX5ABklwQdhgfEr7BpAnmafcJtZNYPmHxQVlRx7ZaSC22gsgtSYFnynSol5jX7WPw88CBiQBlCS80JzacbHYCqqEIf0h4fqbJYkOgOlz3J4R9gyY4fDhK9kgrGleotAIk/vluklnV44VM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761467247; c=relaxed/simple; bh=elSX9IbqQvW2SuUAYMHA/NTFtVw/y09OwjHI4aK+9Go=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=tZ6W8hm7rkuDg29fJahL3O1Bn0nqutQ2/+7qBlvssAetcag1aJQAL2ADWZilhx5bthP/wjzmLg7Bm1ZEVful/3SzcKWXYOrow4w41q3sxhe2Zw+PjKoIftR0V8upqS5D+exQNElYZT9M5QVE8eb4+rj8BceAHAaC2rsisIM3o3g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=Rb2GrXi6; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="Rb2GrXi6" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1761467243; bh=elSX9IbqQvW2SuUAYMHA/NTFtVw/y09OwjHI4aK+9Go=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Rb2GrXi6HpsLYx8ZrvSbgyAJlo2w3O/tfX6q40tcLizhEoYlqGL4gUKiWVT0OP/Sd jaY4yTzWqaYwic2VHaW3S7XiTowwI8AERodX7pCPTjcdH/4SFJUpBP5CnsWwqOff0y zpj7vW8bZtG3Ode8mE/TFZuWXqCH0fN8mz++01sqTHpD0sY5qdWiq5dcXr4/mq24J3 QpGTT4hOMsMFfXmXHKr+WwsL6DhqZs9QudT3FrrwDr1eHWTkYaoiQR7vnE/51RX1o9 M9r183MCBA+jScztgDTuRvUSPLDtEcc8YO2SVKBLTbtEWg4R02vCrVEWaeDWLkbTcw lUo8o3w2V5eyw== Received: from fedora (unknown [IPv6:2a01:e0a:2c:6930:d919:a6e:5ea1:8a9f]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bbrezillon) by bali.collaboradmins.com (Postfix) with ESMTPSA id 02AA117E139C; Sun, 26 Oct 2025 09:27:22 +0100 (CET) Date: Sun, 26 Oct 2025 09:27:17 +0100 From: Boris Brezillon To: Karunika Choo Cc: dri-devel@lists.freedesktop.org, nd@arm.com, Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 6/8] drm/panthor: Support GLB_REQ.STATE field for Mali-G1 GPUs Message-ID: <20251026092717.3aae3679@fedora> In-Reply-To: <20251024202117.3241292-7-karunika.choo@arm.com> References: <20251024202117.3241292-1-karunika.choo@arm.com> <20251024202117.3241292-7-karunika.choo@arm.com> Organization: Collabora X-Mailer: Claws Mail 4.3.1 (GTK 3.24.49; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 24 Oct 2025 21:21:15 +0100 Karunika Choo wrote: > +static bool panthor_fw_has_glb_state(struct panthor_device *ptdev) > +{ > + struct panthor_fw_global_iface *glb_iface = panthor_fw_get_glb_iface(ptdev); > + > + return glb_iface->control->version >= CSF_IFACE_VERSION(4, 1, 0); > +} It's okay for now, but if we start having more of these, we probably want to automate the generation of those has_() helpers with something like: #define FW_FEATURE(feat_name, major, minor) \ static bool panthor_fw_has_ ## feat_name(struct panthor_device *ptdev) \ { \ struct panthor_fw_global_iface *glb_iface = panthor_fw_get_glb_iface(ptdev); \ \ return glb_iface->control->version >= CSF_IFACE_VERSION(major, minor, 0); \ } Same goes for the HW features BTW. > + > /** > * panthor_fw_conv_timeout() - Convert a timeout into a cycle-count > * @ptdev: Device. > @@ -995,6 +1003,9 @@ static void panthor_fw_init_global_iface(struct panthor_device *ptdev) > GLB_IDLE_EN | > GLB_IDLE; > > + if (glb_iface->control->version >= CSF_IFACE_VERSION(4, 1, 0)) if (panthor_fw_has_glb_state(ptdev)) > + glb_iface->input->ack_irq_mask |= GLB_STATE_MASK; > + > panthor_fw_update_reqs(glb_iface, req, GLB_IDLE_EN, GLB_IDLE_EN); > panthor_fw_toggle_reqs(glb_iface, req, ack, > GLB_CFG_ALLOC_EN | > @@ -1068,6 +1079,54 @@ static void panthor_fw_stop(struct panthor_device *ptdev) > drm_err(&ptdev->base, "Failed to stop MCU"); > }