From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rodrigo Vivi Subject: [PATCH 8/9] drm/i915: Added debugfs support for PSR Status Date: Wed, 30 Jan 2013 16:24:50 -0200 Message-ID: <1359570291-2170-9-git-send-email-rodrigo.vivi@gmail.com> References: <1359570291-2170-1-git-send-email-rodrigo.vivi@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1359570291-2170-1-git-send-email-rodrigo.vivi@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org Cc: Shobhit Kumar , dri-devel@lists.freedesktop.org List-Id: dri-devel@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 90a6fc5..11d2896 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1659,6 +1659,39 @@ 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, @@ -2228,6 +2261,7 @@ 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) -- 1.7.11.7