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path: root/drivers/gpu/drm/i915/i915_debugfs.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c143
1 files changed, 113 insertions, 30 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 26bf0552b3cb..a894ade03093 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",
@@ -270,7 +272,7 @@ static void i915_dump_pages(struct seq_file *m, struct page **pages, int page_co
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_atomic(pages[page], KM_USER0);
+ kunmap_atomic(mem, KM_USER0);
}
}
@@ -288,7 +290,7 @@ static int i915_batchbuffer_info(struct seq_file *m, void *data)
list_for_each_entry(obj_priv, &dev_priv->mm.active_list, list) {
obj = obj_priv->obj;
if (obj->read_domains & I915_GEM_DOMAIN_COMMAND) {
- ret = i915_gem_object_get_pages(obj);
+ ret = i915_gem_object_get_pages(obj, 0);
if (ret) {
DRM_ERROR("Failed to get pages: %d\n", ret);
spin_unlock(&dev_priv->mm.active_list_lock);
@@ -384,37 +386,111 @@ out:
return 0;
}
-static int i915_registers_info(struct seq_file *m, void *data) {
- struct drm_info_node *node = (struct drm_info_node *) m->private;
- struct drm_device *dev = node->minor->dev;
+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;
- uint32_t reg;
-
-#define DUMP_RANGE(start, end) \
- for (reg=start; reg < end; reg += 4) \
- seq_printf(m, "%08x\t%08x\n", reg, I915_READ(reg));
-
- DUMP_RANGE(0x00000, 0x00fff); /* VGA registers */
- DUMP_RANGE(0x02000, 0x02fff); /* instruction, memory, interrupt control registers */
- DUMP_RANGE(0x03000, 0x031ff); /* FENCE and PPGTT control registers */
- DUMP_RANGE(0x03200, 0x03fff); /* frame buffer compression registers */
- DUMP_RANGE(0x05000, 0x05fff); /* I/O control registers */
- DUMP_RANGE(0x06000, 0x06fff); /* clock control registers */
- DUMP_RANGE(0x07000, 0x07fff); /* 3D internal debug registers */
- DUMP_RANGE(0x07400, 0x088ff); /* GPE debug registers */
- DUMP_RANGE(0x0a000, 0x0afff); /* display palette registers */
- DUMP_RANGE(0x10000, 0x13fff); /* MMIO MCHBAR */
- DUMP_RANGE(0x30000, 0x3ffff); /* overlay registers */
- DUMP_RANGE(0x60000, 0x6ffff); /* display engine pipeline registers */
- DUMP_RANGE(0x70000, 0x72fff); /* display and cursor registers */
- DUMP_RANGE(0x73000, 0x73fff); /* performance counters */
+ 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},
{"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST},
{"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST},
{"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST},
@@ -432,6 +508,12 @@ 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 +523,8 @@ 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 */
-
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-13 11:18:34 +0200