1 files changed, 17 insertions, 441 deletions

diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index 873bf996ceb5..70e0d8615160 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -30,122 +30,22 @@
 #include <linux/stat.h>
 #include <linux/sysfs.h>
 
+#include <drm/drm_print.h>
+
+#include "gt/intel_gt_regs.h"
 #include "gt/intel_rc6.h"
 #include "gt/intel_rps.h"
 #include "gt/sysfs_engines.h"
 
 #include "i915_drv.h"
 #include "i915_sysfs.h"
-#include "intel_pm.h"
-#include "intel_sideband.h"
 
-static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
+struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
 {
 	struct drm_minor *minor = dev_get_drvdata(kdev);
 	return to_i915(minor->dev);
 }
 
-#ifdef CONFIG_PM
-static u32 calc_residency(struct drm_i915_private *dev_priv,
-			  i915_reg_t reg)
-{
-	intel_wakeref_t wakeref;
-	u64 res = 0;
-
-	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
-		res = intel_rc6_residency_us(&dev_priv->gt.rc6, reg);
-
-	return DIV_ROUND_CLOSEST_ULL(res, 1000);
-}
-
-static ssize_t rc6_enable_show(struct device *kdev,
-			       struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	unsigned int mask;
-
-	mask = 0;
-	if (HAS_RC6(dev_priv))
-		mask |= BIT(0);
-	if (HAS_RC6p(dev_priv))
-		mask |= BIT(1);
-	if (HAS_RC6pp(dev_priv))
-		mask |= BIT(2);
-
-	return sysfs_emit(buf, "%x\n", mask);
-}
-
-static ssize_t rc6_residency_ms_show(struct device *kdev,
-				     struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6);
-	return sysfs_emit(buf, "%u\n", rc6_residency);
-}
-
-static ssize_t rc6p_residency_ms_show(struct device *kdev,
-				      struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6p_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6p);
-	return sysfs_emit(buf, "%u\n", rc6p_residency);
-}
-
-static ssize_t rc6pp_residency_ms_show(struct device *kdev,
-				       struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6pp_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6pp);
-	return sysfs_emit(buf, "%u\n", rc6pp_residency);
-}
-
-static ssize_t media_rc6_residency_ms_show(struct device *kdev,
-					   struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6_residency = calc_residency(dev_priv, VLV_GT_MEDIA_RC6);
-	return sysfs_emit(buf, "%u\n", rc6_residency);
-}
-
-static DEVICE_ATTR_RO(rc6_enable);
-static DEVICE_ATTR_RO(rc6_residency_ms);
-static DEVICE_ATTR_RO(rc6p_residency_ms);
-static DEVICE_ATTR_RO(rc6pp_residency_ms);
-static DEVICE_ATTR_RO(media_rc6_residency_ms);
-
-static struct attribute *rc6_attrs[] = {
-	&dev_attr_rc6_enable.attr,
-	&dev_attr_rc6_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group rc6_attr_group = {
-	.name = power_group_name,
-	.attrs =  rc6_attrs
-};
-
-static struct attribute *rc6p_attrs[] = {
-	&dev_attr_rc6p_residency_ms.attr,
-	&dev_attr_rc6pp_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group rc6p_attr_group = {
-	.name = power_group_name,
-	.attrs =  rc6p_attrs
-};
-
-static struct attribute *media_rc6_attrs[] = {
-	&dev_attr_media_rc6_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group media_rc6_attr_group = {
-	.name = power_group_name,
-	.attrs =  media_rc6_attrs
-};
-#endif
-
 static int l3_access_valid(struct drm_i915_private *i915, loff_t offset)
 {
 	if (!HAS_L3_DPF(i915))
@@ -162,7 +62,7 @@ static int l3_access_valid(struct drm_i915_private *i915, loff_t offset)
 
 static ssize_t
 i915_l3_read(struct file *filp, struct kobject *kobj,
-	     struct bin_attribute *attr, char *buf,
+	     const struct bin_attribute *attr, char *buf,
 	     loff_t offset, size_t count)
 {
 	struct device *kdev = kobj_to_dev(kobj);
@@ -190,7 +90,7 @@ i915_l3_read(struct file *filp, struct kobject *kobj,
 
 static ssize_t
 i915_l3_write(struct file *filp, struct kobject *kobj,
-	      struct bin_attribute *attr, char *buf,
+	      const struct bin_attribute *attr, char *buf,
 	      loff_t offset, size_t count)
 {
 	struct device *kdev = kobj_to_dev(kobj);
@@ -257,326 +157,11 @@ static const struct bin_attribute dpf_attrs_1 = {
 	.private = (void *)1
 };
 
-static ssize_t gt_act_freq_mhz_show(struct device *kdev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &i915->gt.rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps));
-}
-
-static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &i915->gt.rps;
-
-	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->cur_freq));
-}
-
-static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &i915->gt.rps;
-
-	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->boost_freq));
-}
-
-static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
-				       struct device_attribute *attr,
-				       const char *buf, size_t count)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &dev_priv->gt.rps;
-	bool boost = false;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	/* Validate against (static) hardware limits */
-	val = intel_freq_opcode(rps, val);
-	if (val < rps->min_freq || val > rps->max_freq)
-		return -EINVAL;
-
-	mutex_lock(&rps->lock);
-	if (val != rps->boost_freq) {
-		rps->boost_freq = val;
-		boost = atomic_read(&rps->num_waiters);
-	}
-	mutex_unlock(&rps->lock);
-	if (boost)
-		schedule_work(&rps->work);
-
-	return count;
-}
-
-static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
-				     struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &dev_priv->gt.rps;
-
-	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq));
-}
-
-static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &dev_priv->gt.rps;
-
-	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->max_freq_softlimit));
-}
-
-static ssize_t gt_max_freq_mhz_store(struct device *kdev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &dev_priv->gt.rps;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	mutex_lock(&rps->lock);
-
-	val = intel_freq_opcode(rps, val);
-	if (val < rps->min_freq ||
-	    val > rps->max_freq ||
-	    val < rps->min_freq_softlimit) {
-		ret = -EINVAL;
-		goto unlock;
-	}
-
-	if (val > rps->rp0_freq)
-		DRM_DEBUG("User requested overclocking to %d\n",
-			  intel_gpu_freq(rps, val));
-
-	rps->max_freq_softlimit = val;
-
-	val = clamp_t(int, rps->cur_freq,
-		      rps->min_freq_softlimit,
-		      rps->max_freq_softlimit);
-
-	/*
-	 * We still need *_set_rps to process the new max_delay and
-	 * update the interrupt limits and PMINTRMSK even though
-	 * frequency request may be unchanged.
-	 */
-	intel_rps_set(rps, val);
-
-unlock:
-	mutex_unlock(&rps->lock);
-
-	return ret ?: count;
-}
-
-static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &dev_priv->gt.rps;
-
-	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->min_freq_softlimit));
-}
-
-static ssize_t gt_min_freq_mhz_store(struct device *kdev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &dev_priv->gt.rps;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	mutex_lock(&rps->lock);
-
-	val = intel_freq_opcode(rps, val);
-	if (val < rps->min_freq ||
-	    val > rps->max_freq ||
-	    val > rps->max_freq_softlimit) {
-		ret = -EINVAL;
-		goto unlock;
-	}
-
-	rps->min_freq_softlimit = val;
-
-	val = clamp_t(int, rps->cur_freq,
-		      rps->min_freq_softlimit,
-		      rps->max_freq_softlimit);
-
-	/*
-	 * We still need *_set_rps to process the new min_delay and
-	 * update the interrupt limits and PMINTRMSK even though
-	 * frequency request may be unchanged.
-	 */
-	intel_rps_set(rps, val);
-
-unlock:
-	mutex_unlock(&rps->lock);
-
-	return ret ?: count;
-}
-
-static DEVICE_ATTR_RO(gt_act_freq_mhz);
-static DEVICE_ATTR_RO(gt_cur_freq_mhz);
-static DEVICE_ATTR_RW(gt_boost_freq_mhz);
-static DEVICE_ATTR_RW(gt_max_freq_mhz);
-static DEVICE_ATTR_RW(gt_min_freq_mhz);
-
-static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
-
-static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
-static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-
-/* For now we have a static number of RP states */
-static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &dev_priv->gt.rps;
-	u32 val;
-
-	if (attr == &dev_attr_gt_RP0_freq_mhz)
-		val = intel_gpu_freq(rps, rps->rp0_freq);
-	else if (attr == &dev_attr_gt_RP1_freq_mhz)
-		val = intel_gpu_freq(rps, rps->rp1_freq);
-	else if (attr == &dev_attr_gt_RPn_freq_mhz)
-		val = intel_gpu_freq(rps, rps->min_freq);
-	else
-		BUG();
-
-	return sysfs_emit(buf, "%d\n", val);
-}
-
-static const struct attribute * const gen6_attrs[] = {
-	&dev_attr_gt_act_freq_mhz.attr,
-	&dev_attr_gt_cur_freq_mhz.attr,
-	&dev_attr_gt_boost_freq_mhz.attr,
-	&dev_attr_gt_max_freq_mhz.attr,
-	&dev_attr_gt_min_freq_mhz.attr,
-	&dev_attr_gt_RP0_freq_mhz.attr,
-	&dev_attr_gt_RP1_freq_mhz.attr,
-	&dev_attr_gt_RPn_freq_mhz.attr,
-	NULL,
-};
-
-static const struct attribute * const vlv_attrs[] = {
-	&dev_attr_gt_act_freq_mhz.attr,
-	&dev_attr_gt_cur_freq_mhz.attr,
-	&dev_attr_gt_boost_freq_mhz.attr,
-	&dev_attr_gt_max_freq_mhz.attr,
-	&dev_attr_gt_min_freq_mhz.attr,
-	&dev_attr_gt_RP0_freq_mhz.attr,
-	&dev_attr_gt_RP1_freq_mhz.attr,
-	&dev_attr_gt_RPn_freq_mhz.attr,
-	&dev_attr_vlv_rpe_freq_mhz.attr,
-	NULL,
-};
-
-#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
-
-static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
-				struct bin_attribute *attr, char *buf,
-				loff_t off, size_t count)
-{
-
-	struct device *kdev = kobj_to_dev(kobj);
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct i915_gpu_coredump *gpu;
-	ssize_t ret;
-
-	gpu = i915_first_error_state(i915);
-	if (IS_ERR(gpu)) {
-		ret = PTR_ERR(gpu);
-	} else if (gpu) {
-		ret = i915_gpu_coredump_copy_to_buffer(gpu, buf, off, count);
-		i915_gpu_coredump_put(gpu);
-	} else {
-		const char *str = "No error state collected\n";
-		size_t len = strlen(str);
-
-		ret = min_t(size_t, count, len - off);
-		memcpy(buf, str + off, ret);
-	}
-
-	return ret;
-}
-
-static ssize_t error_state_write(struct file *file, struct kobject *kobj,
-				 struct bin_attribute *attr, char *buf,
-				 loff_t off, size_t count)
-{
-	struct device *kdev = kobj_to_dev(kobj);
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-
-	drm_dbg(&dev_priv->drm, "Resetting error state\n");
-	i915_reset_error_state(dev_priv);
-
-	return count;
-}
-
-static const struct bin_attribute error_state_attr = {
-	.attr.name = "error",
-	.attr.mode = S_IRUSR | S_IWUSR,
-	.size = 0,
-	.read = error_state_read,
-	.write = error_state_write,
-};
-
-static void i915_setup_error_capture(struct device *kdev)
-{
-	if (sysfs_create_bin_file(&kdev->kobj, &error_state_attr))
-		DRM_ERROR("error_state sysfs setup failed\n");
-}
-
-static void i915_teardown_error_capture(struct device *kdev)
-{
-	sysfs_remove_bin_file(&kdev->kobj, &error_state_attr);
-}
-#else
-static void i915_setup_error_capture(struct device *kdev) {}
-static void i915_teardown_error_capture(struct device *kdev) {}
-#endif
-
 void i915_setup_sysfs(struct drm_i915_private *dev_priv)
 {
 	struct device *kdev = dev_priv->drm.primary->kdev;
 	int ret;
 
-#ifdef CONFIG_PM
-	if (HAS_RC6(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&rc6_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"RC6 residency sysfs setup failed\n");
-	}
-	if (HAS_RC6p(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&rc6p_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"RC6p residency sysfs setup failed\n");
-	}
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&media_rc6_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"Media RC6 residency sysfs setup failed\n");
-	}
-#endif
 	if (HAS_L3_DPF(dev_priv)) {
 		ret = device_create_bin_file(kdev, &dpf_attrs);
 		if (ret)
@@ -592,15 +177,12 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv)
 		}
 	}
 
-	ret = 0;
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		ret = sysfs_create_files(&kdev->kobj, vlv_attrs);
-	else if (GRAPHICS_VER(dev_priv) >= 6)
-		ret = sysfs_create_files(&kdev->kobj, gen6_attrs);
-	if (ret)
-		drm_err(&dev_priv->drm, "RPS sysfs setup failed\n");
+	dev_priv->sysfs_gt = kobject_create_and_add("gt", &kdev->kobj);
+	if (!dev_priv->sysfs_gt)
+		drm_warn(&dev_priv->drm,
+			 "failed to register GT sysfs directory\n");
 
-	i915_setup_error_capture(kdev);
+	i915_gpu_error_sysfs_setup(dev_priv);
 
 	intel_engines_add_sysfs(dev_priv);
 }
@@ -609,16 +191,10 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)
 {
 	struct device *kdev = dev_priv->drm.primary->kdev;
 
-	i915_teardown_error_capture(kdev);
-
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		sysfs_remove_files(&kdev->kobj, vlv_attrs);
-	else
-		sysfs_remove_files(&kdev->kobj, gen6_attrs);
-	device_remove_bin_file(kdev,  &dpf_attrs_1);
-	device_remove_bin_file(kdev,  &dpf_attrs);
-#ifdef CONFIG_PM
-	sysfs_unmerge_group(&kdev->kobj, &rc6_attr_group);
-	sysfs_unmerge_group(&kdev->kobj, &rc6p_attr_group);
-#endif
+	i915_gpu_error_sysfs_teardown(dev_priv);
+
+	device_remove_bin_file(kdev, &dpf_attrs_1);
+	device_remove_bin_file(kdev, &dpf_attrs);
+
+	kobject_put(dev_priv->sysfs_gt);
 }