diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 124 |
1 files changed, 118 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index f8ce9a3a420d..18476bf0b580 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -27,6 +27,7 @@ */ #include <linux/seq_file.h> +#include <linux/debugfs.h> #include "drmP.h" #include "drm.h" #include "i915_drm.h" @@ -96,13 +97,14 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data) { struct drm_gem_object *obj = obj_priv->obj; - seq_printf(m, " %p: %s %8zd %08x %08x %d %s", + seq_printf(m, " %p: %s %8zd %08x %08x %d%s%s", obj, get_pin_flag(obj_priv), obj->size, obj->read_domains, obj->write_domain, obj_priv->last_rendering_seqno, - obj_priv->dirty ? "dirty" : ""); + obj_priv->dirty ? " dirty" : "", + obj_priv->madv == I915_MADV_DONTNEED ? " purgeable" : ""); if (obj->name) seq_printf(m, " (name: %d)", obj->name); @@ -160,7 +162,7 @@ static int i915_interrupt_info(struct seq_file *m, void *data) struct drm_device *dev = node->minor->dev; drm_i915_private_t *dev_priv = dev->dev_private; - if (!IS_IGDNG(dev)) { + if (!IS_IRONLAKE(dev)) { seq_printf(m, "Interrupt enable: %08x\n", I915_READ(IER)); seq_printf(m, "Interrupt identity: %08x\n", @@ -267,10 +269,10 @@ static void i915_dump_pages(struct seq_file *m, struct page **pages, int page_co uint32_t *mem; for (page = 0; page < page_count; page++) { - mem = kmap(pages[page]); + mem = kmap_atomic(pages[page], KM_USER0); for (i = 0; i < PAGE_SIZE; i += 4) seq_printf(m, "%08x : %08x\n", i, mem[i / 4]); - kunmap(pages[page]); + kunmap_atomic(pages[page], KM_USER0); } } @@ -412,6 +414,109 @@ static int i915_registers_info(struct seq_file *m, void *data) { return 0; } +static int +i915_wedged_open(struct inode *inode, + struct file *filp) +{ + filp->private_data = inode->i_private; + return 0; +} + +static ssize_t +i915_wedged_read(struct file *filp, + char __user *ubuf, + size_t max, + loff_t *ppos) +{ + struct drm_device *dev = filp->private_data; + drm_i915_private_t *dev_priv = dev->dev_private; + char buf[80]; + int len; + + len = snprintf(buf, sizeof (buf), + "wedged : %d\n", + atomic_read(&dev_priv->mm.wedged)); + + return simple_read_from_buffer(ubuf, max, ppos, buf, len); +} + +static ssize_t +i915_wedged_write(struct file *filp, + const char __user *ubuf, + size_t cnt, + loff_t *ppos) +{ + struct drm_device *dev = filp->private_data; + drm_i915_private_t *dev_priv = dev->dev_private; + char buf[20]; + int val = 1; + + if (cnt > 0) { + if (cnt > sizeof (buf) - 1) + return -EINVAL; + + if (copy_from_user(buf, ubuf, cnt)) + return -EFAULT; + buf[cnt] = 0; + + val = simple_strtoul(buf, NULL, 0); + } + + DRM_INFO("Manually setting wedged to %d\n", val); + + atomic_set(&dev_priv->mm.wedged, val); + if (val) { + DRM_WAKEUP(&dev_priv->irq_queue); + queue_work(dev_priv->wq, &dev_priv->error_work); + } + + return cnt; +} + +static const struct file_operations i915_wedged_fops = { + .owner = THIS_MODULE, + .open = i915_wedged_open, + .read = i915_wedged_read, + .write = i915_wedged_write, +}; + +/* As the drm_debugfs_init() routines are called before dev->dev_private is + * allocated we need to hook into the minor for release. */ +static int +drm_add_fake_info_node(struct drm_minor *minor, + struct dentry *ent, + const void *key) +{ + struct drm_info_node *node; + + node = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL); + if (node == NULL) { + debugfs_remove(ent); + return -ENOMEM; + } + + node->minor = minor; + node->dent = ent; + node->info_ent = (void *) key; + list_add(&node->list, &minor->debugfs_nodes.list); + + return 0; +} + +static int i915_wedged_create(struct dentry *root, struct drm_minor *minor) +{ + struct drm_device *dev = minor->dev; + struct dentry *ent; + + ent = debugfs_create_file("i915_wedged", + S_IRUGO | S_IWUSR, + root, dev, + &i915_wedged_fops); + if (IS_ERR(ent)) + return PTR_ERR(ent); + + return drm_add_fake_info_node(minor, ent, &i915_wedged_fops); +} static struct drm_info_list i915_debugfs_list[] = { {"i915_regs", i915_registers_info, 0}, @@ -432,6 +537,12 @@ static struct drm_info_list i915_debugfs_list[] = { int i915_debugfs_init(struct drm_minor *minor) { + int ret; + + ret = i915_wedged_create(minor->debugfs_root, minor); + if (ret) + return ret; + return drm_debugfs_create_files(i915_debugfs_list, I915_DEBUGFS_ENTRIES, minor->debugfs_root, minor); @@ -441,7 +552,8 @@ void i915_debugfs_cleanup(struct drm_minor *minor) { drm_debugfs_remove_files(i915_debugfs_list, I915_DEBUGFS_ENTRIES, minor); + drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops, + 1, minor); } #endif /* CONFIG_DEBUG_FS */ - |