From patchwork Fri Mar 3 12:30:35 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Brodkin X-Patchwork-Id: 735026 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3vZT7z44Pbz9s83 for ; Fri, 3 Mar 2017 23:31:43 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XPmHXfQA"; dkim-atps=neutral DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=k8bU6bzLdF/32yLI1Tj2AYm1sQpFOWd2MpnO5iq9z18=; b=XPm HXfQAnLqFIHzuPe3XXdiPaEqMfqS1b8S93btbCyW/yikN+tQmQTz/uBtiVZwxvEnf1tC9RTI5PMIc A4yb451/Q3+HzHAZWrufAJ0OdcyTY07JMV4OD4jCx4TVkV1UOvAesjITXV7PMlLGAGfjxmpXCb1fM 2cJhvNYwa3Hdi3W6tYQ4kgF1t5vS4ctoAb67T+Gd3npHQ5xmJn7xagjj6Fps9B4KwEzDXPFkHE1tf /X8HfmEA4k7xwsPVyS7W+IAKwG9YAeSoGvcmA9/19dxWlBMY36UXw5lsRLLrSAKqlb6HU9vShoAEp fKndis8mqpPuTI7wn8ERlruiw42DU5Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cjmN3-0001S3-VN; Fri, 03 Mar 2017 12:31:41 +0000 Received: from smtprelay.synopsys.com ([198.182.60.111]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cjmN0-0001QX-LQ for linux-snps-arc@lists.infradead.org; Fri, 03 Mar 2017 12:31:40 +0000 Received: from mailhost.synopsys.com (mailhost2.synopsys.com [10.13.184.66]) by smtprelay.synopsys.com (Postfix) with ESMTP id 6DCBA10C124A; Fri, 3 Mar 2017 04:31:15 -0800 (PST) Received: from mailhost.synopsys.com (localhost [127.0.0.1]) by mailhost.synopsys.com (Postfix) with ESMTP id 521868EC; Fri, 3 Mar 2017 04:31:15 -0800 (PST) Received: from abrodkin-7440l.internal.synopsys.com (unknown [10.121.8.45]) by mailhost.synopsys.com (Postfix) with ESMTP id 68018885; Fri, 3 Mar 2017 04:31:12 -0800 (PST) From: Alexey Brodkin To: dri-devel@lists.freedesktop.org Subject: [PATCH] drm/arcpgu: Opt in debugfs Date: Fri, 3 Mar 2017 15:30:35 +0300 Message-Id: <1488544235-25444-1-git-send-email-abrodkin@synopsys.com> X-Mailer: git-send-email 2.7.4 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170303_043138_713153_9CDF3379 X-CRM114-Status: UNSURE ( 7.65 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [198.182.60.111 listed in list.dnswl.org] -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [198.182.60.111 listed in wl.mailspike.net] -0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jose Abreu , David Airlie , Alexey Brodkin , Liviu Dudau , linux-kernel@vger.kernel.org, Daniel Vetter , linux-snps-arc@lists.infradead.org MIME-Version: 1.0 Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org This change adopts debugfs usage for outputting useful data. As of today we print: * Mode and real HW clock values * Standard FB info Code is heavily borrowed from ARM's HDLCD thus adding Liviu in Cc. Signed-off-by: Alexey Brodkin Cc: Liviu Dudau Cc: Daniel Vetter Cc: David Airlie Cc: Jose Abreu --- drivers/gpu/drm/arc/arcpgu_drv.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c index 8d8344ed655e..5c82f52fba80 100644 --- a/drivers/gpu/drm/arc/arcpgu_drv.c +++ b/drivers/gpu/drm/arc/arcpgu_drv.c @@ -161,6 +161,32 @@ static int arcpgu_unload(struct drm_device *drm) return 0; } +#ifdef CONFIG_DEBUG_FS +static int arcpgu_show_pxlclock(struct seq_file *m, void *arg) +{ + struct drm_info_node *node = (struct drm_info_node *)m->private; + struct drm_device *drm = node->minor->dev; + struct arcpgu_drm_private *arcpgu = drm->dev_private; + unsigned long clkrate = clk_get_rate(arcpgu->clk); + unsigned long mode_clock = arcpgu->crtc.mode.crtc_clock * 1000; + + seq_printf(m, "hw : %lu\n", clkrate); + seq_printf(m, "mode: %lu\n", mode_clock); + return 0; +} + +static struct drm_info_list arcpgu_debugfs_list[] = { + { "clocks", arcpgu_show_pxlclock, 0 }, + { "fb", drm_fb_cma_debugfs_show, 0 }, +}; + +static int arcpgu_debugfs_init(struct drm_minor *minor) +{ + return drm_debugfs_create_files(arcpgu_debugfs_list, + ARRAY_SIZE(arcpgu_debugfs_list), minor->debugfs_root, minor); +} +#endif + static struct drm_driver arcpgu_drm_driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC, @@ -187,6 +213,9 @@ static struct drm_driver arcpgu_drm_driver = { .gem_prime_vmap = drm_gem_cma_prime_vmap, .gem_prime_vunmap = drm_gem_cma_prime_vunmap, .gem_prime_mmap = drm_gem_cma_prime_mmap, +#ifdef CONFIG_DEBUG_FS + .debugfs_init = arcpgu_debugfs_init, +#endif }; static int arcpgu_probe(struct platform_device *pdev)