diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 80 |
1 files changed, 66 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 6badc1596ceb..b2b46c52294c 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -40,8 +40,6 @@ #include <drm/i915_drm.h> #include "i915_drv.h" -#if defined(CONFIG_DEBUG_FS) - enum { ACTIVE_LIST, INACTIVE_LIST, @@ -406,16 +404,26 @@ static int i915_gem_object_info(struct seq_file *m, void* data) seq_putc(m, '\n'); list_for_each_entry_reverse(file, &dev->filelist, lhead) { struct file_stats stats; + struct task_struct *task; memset(&stats, 0, sizeof(stats)); idr_for_each(&file->object_idr, per_file_stats, &stats); + /* + * Although we have a valid reference on file->pid, that does + * not guarantee that the task_struct who called get_pid() is + * still alive (e.g. get_pid(current) => fork() => exit()). + * Therefore, we need to protect this ->comm access using RCU. + */ + rcu_read_lock(); + task = pid_task(file->pid, PIDTYPE_PID); seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu unbound)\n", - get_pid_task(file->pid, PIDTYPE_PID)->comm, + task ? task->comm : "<unknown>", stats.count, stats.total, stats.active, stats.inactive, stats.unbound); + rcu_read_unlock(); } mutex_unlock(&dev->struct_mutex); @@ -1170,6 +1178,50 @@ static int ironlake_drpc_info(struct seq_file *m) return 0; } +static int vlv_drpc_info(struct seq_file *m) +{ + + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + u32 rpmodectl1, rcctl1; + unsigned fw_rendercount = 0, fw_mediacount = 0; + + rpmodectl1 = I915_READ(GEN6_RP_CONTROL); + rcctl1 = I915_READ(GEN6_RC_CONTROL); + + seq_printf(m, "Video Turbo Mode: %s\n", + yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO)); + seq_printf(m, "Turbo enabled: %s\n", + yesno(rpmodectl1 & GEN6_RP_ENABLE)); + seq_printf(m, "HW control enabled: %s\n", + yesno(rpmodectl1 & GEN6_RP_ENABLE)); + seq_printf(m, "SW control enabled: %s\n", + yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) == + GEN6_RP_MEDIA_SW_MODE)); + seq_printf(m, "RC6 Enabled: %s\n", + yesno(rcctl1 & (GEN7_RC_CTL_TO_MODE | + GEN6_RC_CTL_EI_MODE(1)))); + seq_printf(m, "Render Power Well: %s\n", + (I915_READ(VLV_GTLC_PW_STATUS) & + VLV_GTLC_PW_RENDER_STATUS_MASK) ? "Up" : "Down"); + seq_printf(m, "Media Power Well: %s\n", + (I915_READ(VLV_GTLC_PW_STATUS) & + VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down"); + + spin_lock_irq(&dev_priv->uncore.lock); + fw_rendercount = dev_priv->uncore.fw_rendercount; + fw_mediacount = dev_priv->uncore.fw_mediacount; + spin_unlock_irq(&dev_priv->uncore.lock); + + seq_printf(m, "Forcewake Render Count = %u\n", fw_rendercount); + seq_printf(m, "Forcewake Media Count = %u\n", fw_mediacount); + + + return 0; +} + + static int gen6_drpc_info(struct seq_file *m) { @@ -1275,7 +1327,9 @@ static int i915_drpc_info(struct seq_file *m, void *unused) struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; - if (IS_GEN6(dev) || IS_GEN7(dev)) + if (IS_VALLEYVIEW(dev)) + return vlv_drpc_info(m); + else if (IS_GEN6(dev) || IS_GEN7(dev)) return gen6_drpc_info(m); else return ironlake_drpc_info(m); @@ -1287,7 +1341,7 @@ static int i915_fbc_status(struct seq_file *m, void *unused) struct drm_device *dev = node->minor->dev; drm_i915_private_t *dev_priv = dev->dev_private; - if (!I915_HAS_FBC(dev)) { + if (!HAS_FBC(dev)) { seq_puts(m, "FBC unsupported on this chipset\n"); return 0; } @@ -1349,7 +1403,7 @@ static int i915_ips_status(struct seq_file *m, void *unused) return 0; } - if (I915_READ(IPS_CTL) & IPS_ENABLE) + if (IS_BROADWELL(dev) || I915_READ(IPS_CTL) & IPS_ENABLE) seq_puts(m, "enabled\n"); else seq_puts(m, "disabled\n"); @@ -2117,8 +2171,8 @@ static int i915_pipe_crc_create(struct dentry *root, struct drm_minor *minor, info->dev = dev; ent = debugfs_create_file(info->name, S_IRUGO, root, info, &i915_pipe_crc_fops); - if (IS_ERR(ent)) - return PTR_ERR(ent); + if (!ent) + return -ENOMEM; return drm_add_fake_info_node(minor, ent, info); } @@ -3133,8 +3187,8 @@ static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor) S_IRUSR, root, dev, &i915_forcewake_fops); - if (IS_ERR(ent)) - return PTR_ERR(ent); + if (!ent) + return -ENOMEM; return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops); } @@ -3151,8 +3205,8 @@ static int i915_debugfs_create(struct dentry *root, S_IRUGO | S_IWUSR, root, dev, fops); - if (IS_ERR(ent)) - return PTR_ERR(ent); + if (!ent) + return -ENOMEM; return drm_add_fake_info_node(minor, ent, fops); } @@ -3282,5 +3336,3 @@ void i915_debugfs_cleanup(struct drm_minor *minor) drm_debugfs_remove_files(info_list, 1, minor); } } - -#endif /* CONFIG_DEBUG_FS */ |