[Intel-gfx] [PATCHv2.99 03/11] OPTIONAL: drm/i915: Expose PM QoS control parameters via debugfs.

[Francisco Jerez]

v3: Rename CPU_RESPONSE_FREQUENCY to CPU_SCALING_RESPONSE (Rafael).

Signed-off-by: Francisco Jerez <currojerez at riseup.net>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 69 +++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index aa35a59f1c7d..16a45fd2c376 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1247,6 +1247,72 @@ static int i915_llc(struct seq_file *m, void *data)
 	return 0;
 }
 
+static int
+i915_sf_qos_delay_max_ns_set(void *data, u64 val)
+{
+	struct drm_i915_private *dev_priv = data;
+
+	WRITE_ONCE(dev_priv->gt.sf_qos.delay_max_ns, val);
+	return 0;
+}
+
+static int
+i915_sf_qos_delay_max_ns_get(void *data, u64 *val)
+{
+	struct drm_i915_private *dev_priv = data;
+
+	*val = READ_ONCE(dev_priv->gt.sf_qos.delay_max_ns);
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(i915_sf_qos_delay_max_ns_fops,
+			i915_sf_qos_delay_max_ns_get,
+			i915_sf_qos_delay_max_ns_set, "%llu\n");
+
+static int
+i915_sf_qos_delay_slope_shift_set(void *data, u64 val)
+{
+	struct drm_i915_private *dev_priv = data;
+
+	WRITE_ONCE(dev_priv->gt.sf_qos.delay_slope_shift, val);
+	return 0;
+}
+
+static int
+i915_sf_qos_delay_slope_shift_get(void *data, u64 *val)
+{
+	struct drm_i915_private *dev_priv = data;
+
+	*val = READ_ONCE(dev_priv->gt.sf_qos.delay_slope_shift);
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(i915_sf_qos_delay_slope_shift_fops,
+			i915_sf_qos_delay_slope_shift_get,
+			i915_sf_qos_delay_slope_shift_set, "%llu\n");
+
+static int
+i915_sf_qos_target_hz_set(void *data, u64 val)
+{
+	struct drm_i915_private *dev_priv = data;
+
+	WRITE_ONCE(dev_priv->gt.sf_qos.target_hz, val);
+	return 0;
+}
+
+static int
+i915_sf_qos_target_hz_get(void *data, u64 *val)
+{
+	struct drm_i915_private *dev_priv = data;
+
+	*val = READ_ONCE(dev_priv->gt.sf_qos.target_hz);
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(i915_sf_qos_target_hz_fops,
+			i915_sf_qos_target_hz_get,
+			i915_sf_qos_target_hz_set, "%llu\n");
+
 static int i915_runtime_pm_status(struct seq_file *m, void *unused)
 {
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
@@ -1882,6 +1948,9 @@ static const struct i915_debugfs_files {
 	{"i915_error_state", &i915_error_state_fops},
 	{"i915_gpu_info", &i915_gpu_info_fops},
 #endif
+	{"i915_sf_qos_delay_max_ns", &i915_sf_qos_delay_max_ns_fops},
+	{"i915_sf_qos_delay_slope_shift", &i915_sf_qos_delay_slope_shift_fops},
+	{"i915_sf_qos_target_hz", &i915_sf_qos_target_hz_fops}
 };
 
 void i915_debugfs_register(struct drm_i915_private *dev_priv)
-- 
2.22.1