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[109.252.193.159]) by smtp.gmail.com with ESMTPSA id g131sm564329wma.35.2020.11.10.17.15.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Nov 2020 17:15:34 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Georgi Djakov , Rob Herring , Michael Turquette , Stephen Boyd , Peter De Schrijver , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Mikko Perttunen , Viresh Kumar , Peter Geis , Nicolas Chauvet , Krzysztof Kozlowski Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v8 15/26] drm/tegra: dc: Extend debug stats with total number of events Date: Wed, 11 Nov 2020 04:14:45 +0300 Message-Id: <20201111011456.7875-16-digetx@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201111011456.7875-1-digetx@gmail.com> References: <20201111011456.7875-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org It's useful to know the total number of underflow events and currently the debug stats are getting reset each time CRTC is being disabled. Let's account the overall number of events that doesn't get a reset. Tested-by: Peter Geis Tested-by: Nicolas Chauvet Signed-off-by: Dmitry Osipenko --- drivers/gpu/drm/tegra/dc.c | 10 ++++++++++ drivers/gpu/drm/tegra/dc.h | 5 +++++ 2 files changed, 15 insertions(+) diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 14168f792977..fd7c8828652d 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -1539,6 +1539,11 @@ static int tegra_dc_show_stats(struct seq_file *s, void *data) seq_printf(s, "underflow: %lu\n", dc->stats.underflow); seq_printf(s, "overflow: %lu\n", dc->stats.overflow); + seq_printf(s, "frames total: %lu\n", dc->stats.frames_total); + seq_printf(s, "vblank total: %lu\n", dc->stats.vblank_total); + seq_printf(s, "underflow total: %lu\n", dc->stats.underflow_total); + seq_printf(s, "overflow total: %lu\n", dc->stats.overflow_total); + return 0; } @@ -2308,6 +2313,7 @@ static irqreturn_t tegra_dc_irq(int irq, void *data) /* dev_dbg(dc->dev, "%s(): frame end\n", __func__); */ + dc->stats.frames_total++; dc->stats.frames++; } @@ -2316,6 +2322,7 @@ static irqreturn_t tegra_dc_irq(int irq, void *data) dev_dbg(dc->dev, "%s(): vertical blank\n", __func__); */ drm_crtc_handle_vblank(&dc->base); + dc->stats.vblank_total++; dc->stats.vblank++; } @@ -2323,6 +2330,7 @@ static irqreturn_t tegra_dc_irq(int irq, void *data) /* dev_dbg(dc->dev, "%s(): underflow\n", __func__); */ + dc->stats.underflow_total++; dc->stats.underflow++; } @@ -2330,11 +2338,13 @@ static irqreturn_t tegra_dc_irq(int irq, void *data) /* dev_dbg(dc->dev, "%s(): overflow\n", __func__); */ + dc->stats.overflow_total++; dc->stats.overflow++; } if (status & HEAD_UF_INT) { dev_dbg_ratelimited(dc->dev, "%s(): head underflow\n", __func__); + dc->stats.underflow_total++; dc->stats.underflow++; } diff --git a/drivers/gpu/drm/tegra/dc.h b/drivers/gpu/drm/tegra/dc.h index 0d7bdf66a1ec..ba4ed35139fb 100644 --- a/drivers/gpu/drm/tegra/dc.h +++ b/drivers/gpu/drm/tegra/dc.h @@ -48,6 +48,11 @@ struct tegra_dc_stats { unsigned long vblank; unsigned long underflow; unsigned long overflow; + + unsigned long frames_total; + unsigned long vblank_total; + unsigned long underflow_total; + unsigned long overflow_total; }; struct tegra_windowgroup_soc {