From patchwork Sun Nov 5 11:01:17 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mikko Perttunen X-Patchwork-Id: 834329 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=kapsi.fi header.i=@kapsi.fi header.b="u45048fP"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3yVCVQ1pzZz9t2f for ; Sun, 5 Nov 2017 22:03:42 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751184AbdKELCr (ORCPT ); Sun, 5 Nov 2017 06:02:47 -0500 Received: from mail.kapsi.fi ([91.232.154.25]:48722 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751693AbdKELCE (ORCPT ); Sun, 5 Nov 2017 06:02:04 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kapsi.fi; s=20161220; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=CWsxyfdJCqstKxXcnrc//Wp0J1KpOrvWAl9ZLCToXFY=; b=u45048fPMqeZusfRlbSmLHgazwfqxMudOqS4c2Jjb3+vcLbebSUV/vdoE+8qSSzo7054yH4CAayAoYKgD2XAqosW1grlxgDgTqtGBUVshjDJ9Ngx8756z9iTe0iYzpo7fYfFrNXtSL8VMhBMZ9shXdCPOTD9vba5TWqGZQKFtPSoYQ+1k/sTbgfpxL9A/Ix+oXRD3zJJRLJpKz97aqO1hI9O5pMUe8QYH21+BPs23kGJll86MLvfyADM23tGI/uyqfC0UVITXwo4rw4LrhF2jYyohopJ2Macea1rkEzHXV7KuaEMngoiVI6xO0zUvuhoCq+9vLPz46Dse0XhOVIKjA==; Received: from dsl-hkibng22-54f983-249.dhcp.inet.fi ([84.249.131.249] helo=localhost.localdomain) by mail.kapsi.fi with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from ) id 1eBIgk-0006dR-QX; Sun, 05 Nov 2017 13:02:02 +0200 From: Mikko Perttunen To: thierry.reding@gmail.com, jonathanh@nvidia.com Cc: digetx@gmail.com, dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Mikko Perttunen Subject: [PATCH 09/10] drm/tegra: Boot VIC in runtime resume Date: Sun, 5 Nov 2017 13:01:17 +0200 Message-Id: <20171105110118.15142-10-mperttunen@nvidia.com> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20171105110118.15142-1-mperttunen@nvidia.com> References: <20171105110118.15142-1-mperttunen@nvidia.com> X-SA-Exim-Connect-IP: 84.249.131.249 X-SA-Exim-Mail-From: mperttunen@nvidia.com X-SA-Exim-Scanned: No (on mail.kapsi.fi); SAEximRunCond expanded to false Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org This ensures that there are no concurrency issues when multiple users are trying to use VIC concurrently, and also simplifies the code slightly. Signed-off-by: Mikko Perttunen --- drivers/gpu/drm/tegra/vic.c | 47 +++++++++++++++++++-------------------------- 1 file changed, 20 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c index 0cacf023a890..3de20f287112 100644 --- a/drivers/gpu/drm/tegra/vic.c +++ b/drivers/gpu/drm/tegra/vic.c @@ -29,7 +29,6 @@ struct vic_config { struct vic { struct falcon falcon; - bool booted; void __iomem *regs; struct tegra_drm_client client; @@ -51,33 +50,12 @@ static void vic_writel(struct vic *vic, u32 value, unsigned int offset) writel(value, vic->regs + offset); } -static int vic_runtime_resume(struct device *dev) -{ - struct vic *vic = dev_get_drvdata(dev); - - return clk_prepare_enable(vic->clk); -} - -static int vic_runtime_suspend(struct device *dev) -{ - struct vic *vic = dev_get_drvdata(dev); - - clk_disable_unprepare(vic->clk); - - vic->booted = false; - - return 0; -} - static int vic_boot(struct vic *vic) { u32 fce_ucode_size, fce_bin_data_offset; void *hdr; int err = 0; - if (vic->booted) - return 0; - /* setup clockgating registers */ vic_writel(vic, CG_IDLE_CG_DLY_CNT(4) | CG_IDLE_CG_EN | @@ -108,7 +86,26 @@ static int vic_boot(struct vic *vic) return err; } - vic->booted = true; + return 0; +} + +static int vic_runtime_resume(struct device *dev) +{ + struct vic *vic = dev_get_drvdata(dev); + int err; + + err = clk_prepare_enable(vic->clk); + if (err < 0) + return err; + + return vic_boot(vic); +} + +static int vic_runtime_suspend(struct device *dev) +{ + struct vic *vic = dev_get_drvdata(dev); + + clk_disable_unprepare(vic->clk); return 0; } @@ -225,10 +222,6 @@ static int vic_submit(struct tegra_drm_context *context, if (err < 0) return err; - err = vic_boot(vic); - if (err < 0) - goto put_vic; - err = tegra_drm_context_get_channel(context); if (err < 0) goto put_vic;