--- /dev/null
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Ben Widawsky <ben@bwidawsk.net>
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/stat.h>
+#include <linux/sysfs.h>
+#include "intel_drv.h"
+#include "i915_drv.h"
+
+#define dev_to_drm_minor(d) dev_get_drvdata((d))
+
+#ifdef CONFIG_PM
+static u32 calc_residency(struct drm_device *dev, const u32 reg)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u64 raw_time; /* 32b value may overflow during fixed point math */
+ u64 units = 128ULL, div = 100000ULL, bias = 100ULL;
+ u32 ret;
+
+ if (!intel_enable_rc6(dev))
+ return 0;
+
+ intel_runtime_pm_get(dev_priv);
+
+ /* On VLV and CHV, residency time is in CZ units rather than 1.28us */
+ if (IS_VALLEYVIEW(dev)) {
+ u32 clk_reg, czcount_30ns;
+
+ if (IS_CHERRYVIEW(dev))
+ clk_reg = CHV_CLK_CTL1;
+ else
+ clk_reg = VLV_CLK_CTL2;
+
+ czcount_30ns = I915_READ(clk_reg) >> CLK_CTL2_CZCOUNT_30NS_SHIFT;
+
+ if (!czcount_30ns) {
+ WARN(!czcount_30ns, "bogus CZ count value");
+ ret = 0;
+ goto out;
+ }
+
+ units = 0;
+ div = 1000000ULL;
+
+ if (IS_CHERRYVIEW(dev)) {
+ /* Special case for 320Mhz */
+ if (czcount_30ns == 1) {
+ div = 10000000ULL;
+ units = 3125ULL;
+ } else {
+ /* chv counts are one less */
+ czcount_30ns += 1;
+ }
+ }
+
+ if (units == 0)
+ units = DIV_ROUND_UP_ULL(30ULL * bias,
+ (u64)czcount_30ns);
+
+ if (I915_READ(VLV_COUNTER_CONTROL) & VLV_COUNT_RANGE_HIGH)
+ units <<= 8;
+
+ div = div * bias;
+ }
+
+ raw_time = I915_READ(reg) * units;
+ ret = DIV_ROUND_UP_ULL(raw_time, div);
+
+out:
+ intel_runtime_pm_put(dev_priv);
+ return ret;
+}
+
+static ssize_t
+show_rc6_mask(struct device *kdev, struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *dminor = dev_to_drm_minor(kdev);
+ return snprintf(buf, PAGE_SIZE, "%x\n", intel_enable_rc6(dminor->dev));
+}
+
+static ssize_t
+show_rc6_ms(struct device *kdev, struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *dminor = dev_get_drvdata(kdev);
+ u32 rc6_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6);
+ return snprintf(buf, PAGE_SIZE, "%u\n", rc6_residency);
+}
+
+static ssize_t
+show_rc6p_ms(struct device *kdev, struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *dminor = dev_to_drm_minor(kdev);
+ u32 rc6p_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6p);
+ return snprintf(buf, PAGE_SIZE, "%u\n", rc6p_residency);
+}
+
+static ssize_t
+show_rc6pp_ms(struct device *kdev, struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *dminor = dev_to_drm_minor(kdev);
+ u32 rc6pp_residency = calc_residency(dminor->dev, GEN6_GT_GFX_RC6pp);
+ return snprintf(buf, PAGE_SIZE, "%u\n", rc6pp_residency);
+}
+
+static ssize_t
+show_media_rc6_ms(struct device *kdev, struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *dminor = dev_get_drvdata(kdev);
+ u32 rc6_residency = calc_residency(dminor->dev, VLV_GT_MEDIA_RC6);
+ return snprintf(buf, PAGE_SIZE, "%u\n", rc6_residency);
+}
+
+static DEVICE_ATTR(rc6_enable, S_IRUGO, show_rc6_mask, NULL);
+static DEVICE_ATTR(rc6_residency_ms, S_IRUGO, show_rc6_ms, NULL);
+static DEVICE_ATTR(rc6p_residency_ms, S_IRUGO, show_rc6p_ms, NULL);
+static DEVICE_ATTR(rc6pp_residency_ms, S_IRUGO, show_rc6pp_ms, NULL);
+static DEVICE_ATTR(media_rc6_residency_ms, S_IRUGO, show_media_rc6_ms, NULL);
+
+static struct attribute *rc6_attrs[] = {
+ &dev_attr_rc6_enable.attr,
+ &dev_attr_rc6_residency_ms.attr,
+ NULL
+};
+
+static 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 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 struct attribute_group media_rc6_attr_group = {
+ .name = power_group_name,
+ .attrs = media_rc6_attrs
+};
+#endif
+
+static int l3_access_valid(struct drm_device *dev, loff_t offset)
+{
+ if (!HAS_L3_DPF(dev))
+ return -EPERM;
+
+ if (offset % 4 != 0)
+ return -EINVAL;
+
+ if (offset >= GEN7_L3LOG_SIZE)
+ return -ENXIO;
+
+ return 0;
+}
+
+static ssize_t
+i915_l3_read(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf,
+ loff_t offset, size_t count)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct drm_minor *dminor = dev_to_drm_minor(dev);
+ struct drm_device *drm_dev = dminor->dev;
+ struct drm_i915_private *dev_priv = drm_dev->dev_private;
+ int slice = (int)(uintptr_t)attr->private;
+ int ret;
+
+ count = round_down(count, 4);
+
+ ret = l3_access_valid(drm_dev, offset);
+ if (ret)
+ return ret;
+
+ count = min_t(size_t, GEN7_L3LOG_SIZE - offset, count);
+
+ ret = i915_mutex_lock_interruptible(drm_dev);
+ if (ret)
+ return ret;
+
+ if (dev_priv->l3_parity.remap_info[slice])
+ memcpy(buf,
+ dev_priv->l3_parity.remap_info[slice] + (offset/4),
+ count);
+ else
+ memset(buf, 0, count);
+
+ mutex_unlock(&drm_dev->struct_mutex);
+
+ return count;
+}
+
+static ssize_t
+i915_l3_write(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr, char *buf,
+ loff_t offset, size_t count)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct drm_minor *dminor = dev_to_drm_minor(dev);
+ struct drm_device *drm_dev = dminor->dev;
+ struct drm_i915_private *dev_priv = drm_dev->dev_private;
+ struct intel_context *ctx;
+ u32 *temp = NULL; /* Just here to make handling failures easy */
+ int slice = (int)(uintptr_t)attr->private;
+ int ret;
+
+ if (!HAS_HW_CONTEXTS(drm_dev))
+ return -ENXIO;
+
+ ret = l3_access_valid(drm_dev, offset);
+ if (ret)
+ return ret;
+
+ ret = i915_mutex_lock_interruptible(drm_dev);
+ if (ret)
+ return ret;
+
+ if (!dev_priv->l3_parity.remap_info[slice]) {
+ temp = kzalloc(GEN7_L3LOG_SIZE, GFP_KERNEL);
+ if (!temp) {
+ mutex_unlock(&drm_dev->struct_mutex);
+ return -ENOMEM;
+ }
+ }
+
+ ret = i915_gpu_idle(drm_dev);
+ if (ret) {
+ kfree(temp);
+ mutex_unlock(&drm_dev->struct_mutex);
+ return ret;
+ }
+
+ /* TODO: Ideally we really want a GPU reset here to make sure errors
+ * aren't propagated. Since I cannot find a stable way to reset the GPU
+ * at this point it is left as a TODO.
+ */
+ if (temp)
+ dev_priv->l3_parity.remap_info[slice] = temp;
+
+ memcpy(dev_priv->l3_parity.remap_info[slice] + (offset/4), buf, count);
+
+ /* NB: We defer the remapping until we switch to the context */
+ list_for_each_entry(ctx, &dev_priv->context_list, link)
+ ctx->remap_slice |= (1<<slice);
+
+ mutex_unlock(&drm_dev->struct_mutex);
+
+ return count;
+}
+
+static struct bin_attribute dpf_attrs = {
+ .attr = {.name = "l3_parity", .mode = (S_IRUSR | S_IWUSR)},
+ .size = GEN7_L3LOG_SIZE,
+ .read = i915_l3_read,
+ .write = i915_l3_write,
+ .mmap = NULL,
+ .private = (void *)0
+};
+
+static struct bin_attribute dpf_attrs_1 = {
+ .attr = {.name = "l3_parity_slice_1", .mode = (S_IRUSR | S_IWUSR)},
+ .size = GEN7_L3LOG_SIZE,
+ .read = i915_l3_read,
+ .write = i915_l3_write,
+ .mmap = NULL,
+ .private = (void *)1
+};
+
+static ssize_t gt_act_freq_mhz_show(struct device *kdev,
+ struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ flush_delayed_work(&dev_priv->rps.delayed_resume_work);
+
+ intel_runtime_pm_get(dev_priv);
+
+ mutex_lock(&dev_priv->rps.hw_lock);
+ if (IS_VALLEYVIEW(dev_priv->dev)) {
+ u32 freq;
+ freq = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS);
+ ret = intel_gpu_freq(dev_priv, (freq >> 8) & 0xff);
+ } else {
+ u32 rpstat = I915_READ(GEN6_RPSTAT1);
+ if (IS_GEN9(dev_priv))
+ ret = (rpstat & GEN9_CAGF_MASK) >> GEN9_CAGF_SHIFT;
+ else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
+ ret = (rpstat & HSW_CAGF_MASK) >> HSW_CAGF_SHIFT;
+ else
+ ret = (rpstat & GEN6_CAGF_MASK) >> GEN6_CAGF_SHIFT;
+ ret = intel_gpu_freq(dev_priv, ret);
+ }
+ mutex_unlock(&dev_priv->rps.hw_lock);
+
+ intel_runtime_pm_put(dev_priv);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", ret);
+}
+
+static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
+ struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ flush_delayed_work(&dev_priv->rps.delayed_resume_work);
+
+ intel_runtime_pm_get(dev_priv);
+
+ mutex_lock(&dev_priv->rps.hw_lock);
+ ret = intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq);
+ mutex_unlock(&dev_priv->rps.hw_lock);
+
+ intel_runtime_pm_put(dev_priv);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", ret);
+}
+
+static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
+ struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ return snprintf(buf, PAGE_SIZE,
+ "%d\n",
+ intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
+}
+
+static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ flush_delayed_work(&dev_priv->rps.delayed_resume_work);
+
+ mutex_lock(&dev_priv->rps.hw_lock);
+ ret = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit);
+ mutex_unlock(&dev_priv->rps.hw_lock);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", ret);
+}
+
+static ssize_t gt_max_freq_mhz_store(struct device *kdev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 val;
+ ssize_t ret;
+
+ ret = kstrtou32(buf, 0, &val);
+ if (ret)
+ return ret;
+
+ flush_delayed_work(&dev_priv->rps.delayed_resume_work);
+
+ mutex_lock(&dev_priv->rps.hw_lock);
+
+ val = intel_freq_opcode(dev_priv, val);
+
+ if (val < dev_priv->rps.min_freq ||
+ val > dev_priv->rps.max_freq ||
+ val < dev_priv->rps.min_freq_softlimit) {
+ mutex_unlock(&dev_priv->rps.hw_lock);
+ return -EINVAL;
+ }
+
+ if (val > dev_priv->rps.rp0_freq)
+ DRM_DEBUG("User requested overclocking to %d\n",
+ intel_gpu_freq(dev_priv, val));
+
+ dev_priv->rps.max_freq_softlimit = val;
+
+ val = clamp_t(int, dev_priv->rps.cur_freq,
+ dev_priv->rps.min_freq_softlimit,
+ dev_priv->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_set_rps(dev, val);
+
+ mutex_unlock(&dev_priv->rps.hw_lock);
+
+ return count;
+}
+
+static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
+{
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ flush_delayed_work(&dev_priv->rps.delayed_resume_work);
+
+ mutex_lock(&dev_priv->rps.hw_lock);
+ ret = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit);
+ mutex_unlock(&dev_priv->rps.hw_lock);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", ret);
+}
+
+static ssize_t gt_min_freq_mhz_store(struct device *kdev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 val;
+ ssize_t ret;
+
+ ret = kstrtou32(buf, 0, &val);
+ if (ret)
+ return ret;
+
+ flush_delayed_work(&dev_priv->rps.delayed_resume_work);
+
+ mutex_lock(&dev_priv->rps.hw_lock);
+
+ val = intel_freq_opcode(dev_priv, val);
+
+ if (val < dev_priv->rps.min_freq ||
+ val > dev_priv->rps.max_freq ||
+ val > dev_priv->rps.max_freq_softlimit) {
+ mutex_unlock(&dev_priv->rps.hw_lock);
+ return -EINVAL;
+ }
+
+ dev_priv->rps.min_freq_softlimit = val;
+
+ val = clamp_t(int, dev_priv->rps.cur_freq,
+ dev_priv->rps.min_freq_softlimit,
+ dev_priv->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_set_rps(dev, val);
+
+ mutex_unlock(&dev_priv->rps.hw_lock);
+
+ return count;
+
+}
+
+static DEVICE_ATTR(gt_act_freq_mhz, S_IRUGO, gt_act_freq_mhz_show, NULL);
+static DEVICE_ATTR(gt_cur_freq_mhz, S_IRUGO, gt_cur_freq_mhz_show, NULL);
+static DEVICE_ATTR(gt_max_freq_mhz, S_IRUGO | S_IWUSR, gt_max_freq_mhz_show, gt_max_freq_mhz_store);
+static DEVICE_ATTR(gt_min_freq_mhz, S_IRUGO | S_IWUSR, gt_min_freq_mhz_show, gt_min_freq_mhz_store);
+
+static DEVICE_ATTR(vlv_rpe_freq_mhz, S_IRUGO, vlv_rpe_freq_mhz_show, NULL);
+
+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_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ u32 val;
+
+ if (attr == &dev_attr_gt_RP0_freq_mhz)
+ val = intel_gpu_freq(dev_priv, dev_priv->rps.rp0_freq);
+ else if (attr == &dev_attr_gt_RP1_freq_mhz)
+ val = intel_gpu_freq(dev_priv, dev_priv->rps.rp1_freq);
+ else if (attr == &dev_attr_gt_RPn_freq_mhz)
+ val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq);
+ else
+ BUG();
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", val);
+}
+
+static const struct attribute *gen6_attrs[] = {
+ &dev_attr_gt_act_freq_mhz.attr,
+ &dev_attr_gt_cur_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 *vlv_attrs[] = {
+ &dev_attr_gt_act_freq_mhz.attr,
+ &dev_attr_gt_cur_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,
+};
+
+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 = container_of(kobj, struct device, kobj);
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ struct i915_error_state_file_priv error_priv;
+ struct drm_i915_error_state_buf error_str;
+ ssize_t ret_count = 0;
+ int ret;
+
+ memset(&error_priv, 0, sizeof(error_priv));
+
+ ret = i915_error_state_buf_init(&error_str, to_i915(dev), count, off);
+ if (ret)
+ return ret;
+
+ error_priv.dev = dev;
+ i915_error_state_get(dev, &error_priv);
+
+ ret = i915_error_state_to_str(&error_str, &error_priv);
+ if (ret)
+ goto out;
+
+ ret_count = count < error_str.bytes ? count : error_str.bytes;
+
+ memcpy(buf, error_str.buf, ret_count);
+out:
+ i915_error_state_put(&error_priv);
+ i915_error_state_buf_release(&error_str);
+
+ return ret ?: ret_count;
+}
+
+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 = container_of(kobj, struct device, kobj);
+ struct drm_minor *minor = dev_to_drm_minor(kdev);
+ struct drm_device *dev = minor->dev;
+ int ret;
+
+ DRM_DEBUG_DRIVER("Resetting error state\n");
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ i915_destroy_error_state(dev);
+ mutex_unlock(&dev->struct_mutex);
+
+ return count;
+}
+
+static 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,
+};
+
+void i915_setup_sysfs(struct drm_device *dev)
+{
+ int ret;
+
+#ifdef CONFIG_PM
+ if (HAS_RC6(dev)) {
+ ret = sysfs_merge_group(&dev->primary->kdev->kobj,
+ &rc6_attr_group);
+ if (ret)
+ DRM_ERROR("RC6 residency sysfs setup failed\n");
+ }
+ if (HAS_RC6p(dev)) {
+ ret = sysfs_merge_group(&dev->primary->kdev->kobj,
+ &rc6p_attr_group);
+ if (ret)
+ DRM_ERROR("RC6p residency sysfs setup failed\n");
+ }
+ if (IS_VALLEYVIEW(dev)) {
+ ret = sysfs_merge_group(&dev->primary->kdev->kobj,
+ &media_rc6_attr_group);
+ if (ret)
+ DRM_ERROR("Media RC6 residency sysfs setup failed\n");
+ }
+#endif
+ if (HAS_L3_DPF(dev)) {
+ ret = device_create_bin_file(dev->primary->kdev, &dpf_attrs);
+ if (ret)
+ DRM_ERROR("l3 parity sysfs setup failed\n");
+
+ if (NUM_L3_SLICES(dev) > 1) {
+ ret = device_create_bin_file(dev->primary->kdev,
+ &dpf_attrs_1);
+ if (ret)
+ DRM_ERROR("l3 parity slice 1 setup failed\n");
+ }
+ }
+
+ ret = 0;
+ if (IS_VALLEYVIEW(dev))
+ ret = sysfs_create_files(&dev->primary->kdev->kobj, vlv_attrs);
+ else if (INTEL_INFO(dev)->gen >= 6)
+ ret = sysfs_create_files(&dev->primary->kdev->kobj, gen6_attrs);
+ if (ret)
+ DRM_ERROR("RPS sysfs setup failed\n");
+
+ ret = sysfs_create_bin_file(&dev->primary->kdev->kobj,
+ &error_state_attr);
+ if (ret)
+ DRM_ERROR("error_state sysfs setup failed\n");
+}
+
+void i915_teardown_sysfs(struct drm_device *dev)
+{
+ sysfs_remove_bin_file(&dev->primary->kdev->kobj, &error_state_attr);
+ if (IS_VALLEYVIEW(dev))
+ sysfs_remove_files(&dev->primary->kdev->kobj, vlv_attrs);
+ else
+ sysfs_remove_files(&dev->primary->kdev->kobj, gen6_attrs);
+ device_remove_bin_file(dev->primary->kdev, &dpf_attrs_1);
+ device_remove_bin_file(dev->primary->kdev, &dpf_attrs);
+#ifdef CONFIG_PM
+ sysfs_unmerge_group(&dev->primary->kdev->kobj, &rc6_attr_group);
+ sysfs_unmerge_group(&dev->primary->kdev->kobj, &rc6p_attr_group);
+#endif
+}
Code Review / kvmfornfv.git / blobdiff