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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC47DC32771 for ; Fri, 19 Aug 2022 16:43:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353572AbiHSQnj (ORCPT ); Fri, 19 Aug 2022 12:43:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353848AbiHSQlI (ORCPT ); Fri, 19 Aug 2022 12:41:08 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 026A9124229; Fri, 19 Aug 2022 09:09:31 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id EE996B82824; Fri, 19 Aug 2022 16:08:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 59EEDC433C1; Fri, 19 Aug 2022 16:08:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1660925328; bh=8kUpbkMwLPfjZaP/tQk/YlBKuvxAlceCaVIlCRD3mqw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lpChL0SuU6jSSYERKfpNQExCm8Ss29uKB7Zp4Oh9ZG8VN9bEfxoNwDFNnstIr1wGR i1Yj+OGogoVlbsJQ8mwmARqxemY15iISaUzB1DtHHdiNFdHhJFqqpcwesC9PMoyBck v4nrRdY50BdswOju03xr9aEyWlcO/Pi0Hw0wtYAI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dave Stevenson , Maxime Ripard , Sasha Levin Subject: [PATCH 5.10 457/545] drm/vc4: drv: Adopt the dma configuration from the HVS or V3D component Date: Fri, 19 Aug 2022 17:43:47 +0200 Message-Id: <20220819153849.836678563@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220819153829.135562864@linuxfoundation.org> References: <20220819153829.135562864@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dave Stevenson [ Upstream commit da8e393e23efb60eba8959856c7df88f9859f6eb ] vc4_drv isn't necessarily under the /soc node in DT as it is a virtual device, but it is the one that does the allocations. The DMA addresses are consumed by primarily the HVS or V3D, and those require VideoCore cache alias address mapping, and so will be under /soc. During probe find the a suitable device node for HVS or V3D, and adopt the DMA configuration of that node. Cc: Signed-off-by: Dave Stevenson Link: https://lore.kernel.org/r/20220613144800.326124-2-maxime@cerno.tech Signed-off-by: Maxime Ripard Signed-off-by: Sasha Levin --- drivers/gpu/drm/vc4/vc4_drv.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 839610f8092a..4bed62916b64 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -246,6 +246,15 @@ static void vc4_match_add_drivers(struct device *dev, } } +const struct of_device_id vc4_dma_range_matches[] = { + { .compatible = "brcm,bcm2711-hvs" }, + { .compatible = "brcm,bcm2835-hvs" }, + { .compatible = "brcm,bcm2835-v3d" }, + { .compatible = "brcm,cygnus-v3d" }, + { .compatible = "brcm,vc4-v3d" }, + {} +}; + static int vc4_drm_bind(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); @@ -263,6 +272,16 @@ static int vc4_drm_bind(struct device *dev) vc4_drm_driver.driver_features &= ~DRIVER_RENDER; of_node_put(node); + node = of_find_matching_node_and_match(NULL, vc4_dma_range_matches, + NULL); + if (node) { + ret = of_dma_configure(dev, node, true); + of_node_put(node); + + if (ret) + return ret; + } + vc4 = devm_drm_dev_alloc(dev, &vc4_drm_driver, struct vc4_dev, base); if (IS_ERR(vc4)) return PTR_ERR(vc4); -- 2.35.1