Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
---
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 b315f01..e0fd3ba 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -4316,6 +4316,39 @@ DEFINE_SIMPLE_ATTRIBUTE(i915_cache_sharing_fops,
i915_cache_sharing_get, i915_cache_sharing_set,
"%llu\n");
+static int i915_wbinvd_threshold_get(void *data, u64 *val)
+{
+ struct drm_device *dev = data;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+ *val = dev_priv->wbinvd_threshold;
+ mutex_unlock(&dev_priv->dev->struct_mutex);
+
+ return 0;
+}
+
+static int i915_wbinvd_threshold_set(void *data, u64 val)
+{
+ struct drm_device *dev = data;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+ dev_priv->wbinvd_threshold = val;
+ mutex_unlock(&dev_priv->dev->struct_mutex);
+
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(i915_wbinvd_threshold_fops,
+ i915_wbinvd_threshold_get, i915_wbinvd_threshold_set,
+ "%llu\n");
static int i915_forcewake_open(struct inode *inode, struct file *file)
{
struct drm_device *dev = inode->i_private;
@@ -4450,6 +4483,7 @@ static const struct i915_debugfs_files {
{"i915_spr_wm_latency", &i915_spr_wm_latency_fops},
{"i915_cur_wm_latency", &i915_cur_wm_latency_fops},
{"i915_fbc_false_color", &i915_fbc_fc_fops},
+ {"i915_wbinvd_threshold", &i915_wbinvd_threshold_fops},
};
void intel_display_crc_init(struct drm_device *dev)
--
2.3.0
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