From mboxrd@z Thu Jan 1 00:00:00 1970 From: John.C.Harrison@Intel.com Subject: [RFC 35/44] drm/i915: Added debugfs interface to scheduler tuning parameters Date: Thu, 26 Jun 2014 18:24:26 +0100 Message-ID: <1403803475-16337-36-git-send-email-John.C.Harrison@Intel.com> References: <1403803475-16337-1-git-send-email-John.C.Harrison@Intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 5A9426E2CF for ; Thu, 26 Jun 2014 10:25:57 -0700 (PDT) In-Reply-To: <1403803475-16337-1-git-send-email-John.C.Harrison@Intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Intel-GFX@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org From: John Harrison There are various parameters within the scheduler which can be tuned to improve performance, reduce memory footprint, etc. This change adds support for altering these via debugfs. --- drivers/gpu/drm/i915/i915_debugfs.c | 117 +++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 5858cbb..1c20c8c 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -39,6 +39,7 @@ #include "intel_ringbuffer.h" #include #include "i915_drv.h" +#include "i915_scheduler.h" enum { ACTIVE_LIST, @@ -983,6 +984,116 @@ DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops, i915_next_seqno_get, i915_next_seqno_set, "0x%llx\n"); +#ifdef CONFIG_DRM_I915_SCHEDULER +static int +i915_scheduler_priority_max_get(void *data, u64 *val) +{ + struct drm_device *dev = data; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_scheduler *scheduler = dev_priv->scheduler; + + *val = (u64) scheduler->priority_level_max; + return 0; +} + +static int +i915_scheduler_priority_max_set(void *data, u64 val) +{ + struct drm_device *dev = data; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_scheduler *scheduler = dev_priv->scheduler; + + scheduler->priority_level_max = (u32) val; + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_scheduler_priority_max_fops, + i915_scheduler_priority_max_get, + i915_scheduler_priority_max_set, + "0x%llx\n"); + +static int +i915_scheduler_priority_preempt_get(void *data, u64 *val) +{ + struct drm_device *dev = data; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_scheduler *scheduler = dev_priv->scheduler; + + *val = (u64) scheduler->priority_level_preempt; + return 0; +} + +static int +i915_scheduler_priority_preempt_set(void *data, u64 val) +{ + struct drm_device *dev = data; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_scheduler *scheduler = dev_priv->scheduler; + + scheduler->priority_level_preempt = (u32) val; + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_scheduler_priority_preempt_fops, + i915_scheduler_priority_preempt_get, + i915_scheduler_priority_preempt_set, + "0x%llx\n"); + +static int +i915_scheduler_min_flying_get(void *data, u64 *val) +{ + struct drm_device *dev = data; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_scheduler *scheduler = dev_priv->scheduler; + + *val = (u64) scheduler->min_flying; + return 0; +} + +static int +i915_scheduler_min_flying_set(void *data, u64 val) +{ + struct drm_device *dev = data; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_scheduler *scheduler = dev_priv->scheduler; + + scheduler->min_flying = (u32) val; + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_scheduler_min_flying_fops, + i915_scheduler_min_flying_get, + i915_scheduler_min_flying_set, + "0x%llx\n"); + +static int +i915_scheduler_file_queue_max_get(void *data, u64 *val) +{ + struct drm_device *dev = data; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_scheduler *scheduler = dev_priv->scheduler; + + *val = (u64) scheduler->file_queue_max; + return 0; +} + +static int +i915_scheduler_file_queue_max_set(void *data, u64 val) +{ + struct drm_device *dev = data; + struct drm_i915_private *dev_priv = dev->dev_private; + struct i915_scheduler *scheduler = dev_priv->scheduler; + + scheduler->file_queue_max = (u32) val; + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(i915_scheduler_file_queue_max_fops, + i915_scheduler_file_queue_max_get, + i915_scheduler_file_queue_max_set, + "0x%llx\n"); +#endif /* CONFIG_DRM_I915_SCHEDULER */ + static int i915_rstdby_delays(struct seq_file *m, void *unused) { struct drm_info_node *node = m->private; @@ -3834,6 +3945,12 @@ static const struct i915_debugfs_files { {"i915_gem_drop_caches", &i915_drop_caches_fops}, {"i915_error_state", &i915_error_state_fops}, {"i915_next_seqno", &i915_next_seqno_fops}, +#ifdef CONFIG_DRM_I915_SCHEDULER + {"i915_scheduler_priority_max", &i915_scheduler_priority_max_fops}, + {"i915_scheduler_priority_preempt", &i915_scheduler_priority_preempt_fops}, + {"i915_scheduler_min_flying", &i915_scheduler_min_flying_fops}, + {"i915_scheduler_file_queue_max", &i915_scheduler_file_queue_max_fops}, +#endif {"i915_display_crc_ctl", &i915_display_crc_ctl_fops}, {"i915_pri_wm_latency", &i915_pri_wm_latency_fops}, {"i915_spr_wm_latency", &i915_spr_wm_latency_fops}, -- 1.7.9.5