From patchwork Tue May 22 08:57:11 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: vathsala nagaraju X-Patchwork-Id: 10417653 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6D40560224 for ; Tue, 22 May 2018 08:57:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5F4A228B60 for ; Tue, 22 May 2018 08:57:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 540FA28B7E; Tue, 22 May 2018 08:57:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9232C28B60 for ; Tue, 22 May 2018 08:57:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E55686E0FB; Tue, 22 May 2018 08:57:17 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 158306E0E5 for ; Tue, 22 May 2018 08:57:16 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 May 2018 01:57:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,429,1520924400"; d="scan'208";a="52828753" Received: from vnagaraj-hp-elitedesk-800-g1-twr.iind.intel.com ([10.66.247.146]) by orsmga003.jf.intel.com with ESMTP; 22 May 2018 01:57:13 -0700 From: vathsala nagaraju To: dhinakaran.pandiyan@intel.com Date: Tue, 22 May 2018 14:27:11 +0530 Message-Id: <1526979431-716-1-git-send-email-vathsala.nagaraju@intel.com> X-Mailer: git-send-email 1.9.1 Subject: [Intel-gfx] [PATCH] drm/i915/psr : Add psr1 live status X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org, Rodrigo Vivi MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Vathsala Nagaraju Prints live state of psr1.Extending the existing PSR2 live state function to cover psr1. Tested on KBL with psr2 and psr1 panel. v2: rebase v3: DK Rename psr2_live_status to psr_source_status Cc: Rodrigo Vivi Cc: Dhinakaran Pandiyan Signed-off-by: Vathsala Nagaraju --- drivers/gpu/drm/i915/i915_debugfs.c | 66 +++++++++++++++++++++++-------------- drivers/gpu/drm/i915/i915_reg.h | 1 + 2 files changed, 43 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 5251544..e4a2f15 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2596,25 +2596,42 @@ static int i915_guc_log_relay_release(struct inode *inode, struct file *file) .release = i915_guc_log_relay_release, }; -static const char *psr2_live_status(u32 val) -{ - static const char * const live_status[] = { - "IDLE", - "CAPTURE", - "CAPTURE_FS", - "SLEEP", - "BUFON_FW", - "ML_UP", - "SU_STANDBY", - "FAST_SLEEP", - "DEEP_SLEEP", - "BUF_ON", - "TG_ON" - }; - - val = (val & EDP_PSR2_STATUS_STATE_MASK) >> EDP_PSR2_STATUS_STATE_SHIFT; - if (val < ARRAY_SIZE(live_status)) - return live_status[val]; +static const char *psr_source_status(u32 val, bool is_psr2_enabled) +{ + if (is_psr2_enabled) { + static const char * const live_status[] = { + "IDLE", + "CAPTURE", + "CAPTURE_FS", + "SLEEP", + "BUFON_FW", + "ML_UP", + "SU_STANDBY", + "FAST_SLEEP", + "DEEP_SLEEP", + "BUF_ON", + "TG_ON" + }; + val = (val & EDP_PSR2_STATUS_STATE_MASK) >> + EDP_PSR2_STATUS_STATE_SHIFT; + if (val < ARRAY_SIZE(live_status)) + return live_status[val]; + } else { + static const char * const live_status[] = { + "IDLE", + "SRDONACK", + "SRDENT", + "BUFOFF", + "BUFON", + "AUXACK", + "SRDOFFACK", + "SRDENT_ON", + }; + val = (val & EDP_PSR_STATUS_STATE_MASK) >> + EDP_PSR_STATUS_STATE_SHIFT; + if (val < ARRAY_SIZE(live_status)) + return live_status[val]; + } return "unknown"; } @@ -2647,6 +2664,7 @@ static int i915_edp_psr_status(struct seq_file *m, void *data) enum pipe pipe; bool enabled = false; bool sink_support; + u32 psr_status; if (!HAS_PSR(dev_priv)) return -ENODEV; @@ -2714,12 +2732,12 @@ static int i915_edp_psr_status(struct seq_file *m, void *data) seq_printf(m, "Performance_Counter: %u\n", psrperf); } - if (dev_priv->psr.psr2_enabled) { - u32 psr2 = I915_READ(EDP_PSR2_STATUS); - seq_printf(m, "EDP_PSR2_STATUS: %x [%s]\n", - psr2, psr2_live_status(psr2)); - } + psr_status = (dev_priv->psr.psr2_enabled) ? I915_READ(EDP_PSR2_STATUS) : + I915_READ(EDP_PSR_STATUS); + seq_printf(m, "SOURCE_PSR_STATUS: %x[%s]\n", + psr_status, + psr_source_status(psr_status, dev_priv->psr.psr2_enabled)); if (dev_priv->psr.enabled) { struct drm_dp_aux *aux = &dev_priv->psr.enabled->aux; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 513b4a4..3c42021 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4069,6 +4069,7 @@ enum { #define EDP_PSR_STATUS_SENDING_TP2_TP3 (1<<8) #define EDP_PSR_STATUS_SENDING_TP1 (1<<4) #define EDP_PSR_STATUS_IDLE_MASK 0xf +#define EDP_PSR_STATUS_STATE_SHIFT 29 #define EDP_PSR_PERF_CNT _MMIO(dev_priv->psr_mmio_base + 0x44) #define EDP_PSR_PERF_CNT_MASK 0xffffff