From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BFC00F364AF for ; Thu, 9 Apr 2026 17:52:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A12A910E856; Thu, 9 Apr 2026 17:52:13 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=collabora.com header.i=deborah.brouwer@collabora.com header.b="CVaBKQD6"; dkim-atps=neutral Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9BF8110E850 for ; Thu, 9 Apr 2026 17:52:11 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; t=1775757129; cv=none; d=zohomail.com; s=zohoarc; b=I4oeKTNm4gcP+LxsFCO9ERY69FDV+3n4ICYSX2d+B1Vw1g4FshS7BOFnytQVyNY5Qh5MpskKjtmJOEcLIre0ovn/3EVj5XcM5sXiwq09HZKxC2GhD+ZiQNhAUrtaZyBAlmp+xvcJE+dhYdmDKK652pyvBc3t2MjudBtkdUSmxoM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1775757129; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=SO5AtVKALT95olzMBkfm8nKp0IfRYXgzoabCcR0BZVQ=; b=HZRlQbLtZnLtRCSMjNy5kg/SZIBxQ6zusE6zv//bVWPB5BTFTWLvIQkCCXfgY7270QJCaSoVA084R4qhFmpFzuWg+gtl9lDqvFjZuwTiarbuMXTlVFe59N8xJdb6ls40KvX9uNHM2YTXlHmLtn9Bhj7K+QfaCK2XVTJJsk3ciPs= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=deborah.brouwer@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1775757129; s=zohomail; d=collabora.com; i=deborah.brouwer@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=SO5AtVKALT95olzMBkfm8nKp0IfRYXgzoabCcR0BZVQ=; b=CVaBKQD6J7X0fXg9qdbq865YcCMqFCwIkNs9o0zTLa5wccH/JzPQPskidSsFDkzg kdvQjAX6VQGSgy2aYJ38YfVQX2Wutewm0NP+frNiwW0SRYynuV6y9PVtxqYyYE/qOOE 95/KQ7J41/KLNbG2gWnocpGv+o8eoXCPb4WtmTGY= Received: by mx.zohomail.com with SMTPS id 1775757127467615.3333939400851; Thu, 9 Apr 2026 10:52:07 -0700 (PDT) From: Deborah Brouwer Date: Thu, 09 Apr 2026 10:51:29 -0700 Subject: [PATCH v5 6/6] drm/tyr: Add DOORBELL_BLOCK registers MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260409-b4-tyr-use-register-macro-v5-v5-6-8abfff8a0204@collabora.com> References: <20260409-b4-tyr-use-register-macro-v5-v5-0-8abfff8a0204@collabora.com> In-Reply-To: <20260409-b4-tyr-use-register-macro-v5-v5-0-8abfff8a0204@collabora.com> To: dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org, Boqun Feng Cc: Danilo Krummrich , Alice Ryhl , Daniel Almeida , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Miguel Ojeda , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Trevor Gross , Steven Price , Boris Brezillon , Dirk Behme , Alexandre Courbot , Deborah Brouwer , Boqun Feng X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1535; i=deborah.brouwer@collabora.com; h=from:subject:message-id; bh=cHgzZgQLQAOK84w4BfVsSPdNFngqxTZOnfGB3SV3IX8=; b=owGbwMvMwCVWuULzOU9c7WvG02pJDJnXnzs0+8ke//jGoVn4XHtCr6S1zbMZokIPKmcatnD23 HD/61XSUcrCIMbFICumyHLW3qhHvOq9ke78/80wc1iZQIYwcHEKwETeb2dkuPhh2bb1Lq+OhFa0 r0ubNP/Pi/9FYhvsstP3eZ947PJjzxVGhk/LLhzUFHowbQaPw5I5WoFTJqpGHXU1Vm04Wp+vmmo uygkA X-Developer-Key: i=deborah.brouwer@collabora.com; a=openpgp; fpr=CD3F328C177AEF322D9FFF8379A829E70C5E7DEB X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" DOORBELL_BLOCK_n[0-63] is an array of GPU control register pages. Each block is memory-mappable and contains a single DOORBELL register used to trigger actions in the GPU. Add definitions for the DOORBELL_BLOCK registers using the register! macro so they can be used by future Tyr interfaces. Reviewed-by: Boris Brezillon Signed-off-by: Deborah Brouwer --- drivers/gpu/drm/tyr/regs.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/gpu/drm/tyr/regs.rs b/drivers/gpu/drm/tyr/regs.rs index 97de0a735ff8..9963294b8625 100644 --- a/drivers/gpu/drm/tyr/regs.rs +++ b/drivers/gpu/drm/tyr/regs.rs @@ -1631,3 +1631,25 @@ fn from(sh: PtwShareability) -> Self { } } } + +/// This module corresponds to the DOORBELL_BLOCK_n[0-63] register pages. +pub(crate) mod doorbell_block { + use kernel::register; + + /// Number of doorbells available. + pub(crate) const NUM_DOORBELLS: usize = 64; + + /// Doorbell block stride (64KiB). + /// + /// Each block occupies a full page, allowing it to be mapped + /// separately into a virtual address space. + const STRIDE: usize = 0x10000; + + register! { + /// Doorbell request register. Write-only. + pub(crate) DOORBELL(u32)[NUM_DOORBELLS, stride = STRIDE] @ 0x80000 { + /// Doorbell set. Writing 1 triggers the doorbell. + 0:0 ring => bool; + } + } +} -- 2.53.0