From patchwork Fri Jan 11 19:57:56 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rodrigo Vivi X-Patchwork-Id: 1967281 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork2.kernel.org (Postfix) with ESMTP id 01DB3DF2A2 for ; Fri, 11 Jan 2013 20:14:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 063FEE5C6F for ; Fri, 11 Jan 2013 12:14:45 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-yh0-f47.google.com (mail-yh0-f47.google.com [209.85.213.47]) by gabe.freedesktop.org (Postfix) with ESMTP id 74DEE4BFB0 for ; Fri, 11 Jan 2013 12:12:36 -0800 (PST) Received: by mail-yh0-f47.google.com with SMTP id 22so411121yhr.34 for ; Fri, 11 Jan 2013 12:12:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=Po3FdrEkh5jBKxHTOgA9s/zF3mLW0ZO/xxZKOqqDbkc=; b=rhYlEU0BL6/aBYrdmxMtnXRFIxyLl6CJVHTGtRBa/v8/OWDFYwGpJwlpefP7rt4DxS MRvTgmk0Js8lKHQ4TbQlkRoZDaeQJbs1BowsQit2m2rLaigCNDcd6qWQi7jj5xb0dR+O J7n12FSdNSZ8k4kXNuVfuKZj05gicnd46O3ZuKJzkx3CALO2gfrMnKj/+Dt4NjqQTIRV qfZERFP11l9xYZ1RKsjfl39FABI1irE6yVYursqJms6PVplyFug7k44WDyLKZozLC1z9 yRUrPXKLEYbXGCT9Be7gBD3CKSM92im9ppKKdeFcF6Kk7JYpJP8tqpNWjT6s/M89pnMN vWRg== X-Received: by 10.101.142.34 with SMTP id u34mr24791415ann.7.1357935155822; Fri, 11 Jan 2013 12:12:35 -0800 (PST) Received: from localhost.localdomain ([189.0.16.214]) by mx.google.com with ESMTPS id y17sm4630713ang.12.2013.01.11.12.11.47 (version=TLSv1 cipher=RC4-SHA bits=128/128); Fri, 11 Jan 2013 12:12:35 -0800 (PST) From: Rodrigo Vivi To: intel-gfx@lists.freedesktop.org Date: Fri, 11 Jan 2013 17:57:56 -0200 Message-Id: <1357934277-3300-8-git-send-email-rodrigo.vivi@gmail.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1357934277-3300-1-git-send-email-rodrigo.vivi@gmail.com> References: <1357934277-3300-1-git-send-email-rodrigo.vivi@gmail.com> Subject: [Intel-gfx] [PATCH 7/8] drm/i915: Added debugfs support for PSR Status X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org From: Shobhit Kumar Added support for PSR entry counter and performance counters Signed-off-by: Shobhit Kumar v2: Add psr enabled yes/no info Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_debugfs.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 882a735..39513de 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1658,6 +1658,39 @@ static int i915_dpio_info(struct seq_file *m, void *data) return 0; } +static int i915_edp_psr_status(struct seq_file *m, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + int count; + u32 psrctl, psrstat, psrperf; + + /* Bit 31 gives the PSR enabled */ + psrctl = I915_READ(EDP_PSR_CTL); + seq_printf(m, "PSR Enabled: %s\n", + yesno(psrctl & EDP_PSR_ENABLE)); + + /* Bits 19:16 gives the PSR entry count */ + psrstat = I915_READ(EDP_PSR_STATUS_CTL); + count = ((psrstat >> 16) & 0xf); + + /* Format the PSR Entry Count only for now. + * TBD: Other status information + */ + seq_printf(m, "EDP_PSR_ENTRY_COUNT: %u\n", count); + + /* Current PSR state */ + count = ((psrstat >> 29) & 0x7); + seq_printf(m, "EDP_PSR_CURRENT_STATE: 0x%x\n", count); + + /* Perfromance counter bit 23:0 */ + psrperf = (I915_READ(EDP_PSR_PERF_CNT)) & 0xffffff; + seq_printf(m, "EDP_PSR_PERF_COUNTER: %u\n", psrperf); + + return 0; +} + static ssize_t i915_wedged_read(struct file *filp, char __user *ubuf, @@ -2131,6 +2164,7 @@ static struct drm_info_list i915_debugfs_list[] = { {"i915_swizzle_info", i915_swizzle_info, 0}, {"i915_ppgtt_info", i915_ppgtt_info, 0}, {"i915_dpio", i915_dpio_info, 0}, + {"i915_edp_psr_status", i915_edp_psr_status, 0}, }; #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)