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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.c131
1 files changed, 123 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 87c8e29..51c2257 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -106,11 +106,12 @@ static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
}
}
-static const char *agp_type_str(int type)
+static const char *cache_level_str(int type)
{
switch (type) {
- case 0: return " uncached";
- case 1: return " snooped";
+ case I915_CACHE_NONE: return " uncached";
+ case I915_CACHE_LLC: return " snooped (LLC)";
+ case I915_CACHE_LLC_MLC: return " snooped (LLC+MLC)";
default: return "";
}
}
@@ -127,7 +128,7 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
obj->base.write_domain,
obj->last_rendering_seqno,
obj->last_fenced_seqno,
- agp_type_str(obj->agp_type == AGP_USER_CACHED_MEMORY),
+ cache_level_str(obj->cache_level),
obj->dirty ? " dirty" : "",
obj->madv == I915_MADV_DONTNEED ? " purgeable" : "");
if (obj->base.name)
@@ -714,7 +715,7 @@ static void print_error_buffers(struct seq_file *m,
dirty_flag(err->dirty),
purgeable_flag(err->purgeable),
ring_str(err->ring),
- agp_type_str(err->agp_type));
+ cache_level_str(err->cache_level));
if (err->name)
seq_printf(m, " (name: %d)", err->name);
@@ -852,6 +853,7 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
+ int ret;
if (IS_GEN5(dev)) {
u16 rgvswctl = I915_READ16(MEMSWCTL);
@@ -873,7 +875,11 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
int max_freq;
/* RPSTAT1 is in the GT power well */
- __gen6_gt_force_wake_get(dev_priv);
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ gen6_gt_force_wake_get(dev_priv);
rpstat = I915_READ(GEN6_RPSTAT1);
rpupei = I915_READ(GEN6_RP_CUR_UP_EI);
@@ -883,6 +889,9 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
rpcurdown = I915_READ(GEN6_RP_CUR_DOWN);
rpprevdown = I915_READ(GEN6_RP_PREV_DOWN);
+ gen6_gt_force_wake_put(dev_priv);
+ mutex_unlock(&dev->struct_mutex);
+
seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status);
seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat);
seq_printf(m, "Render p-state ratio: %d\n",
@@ -917,8 +926,6 @@ static int i915_cur_delayinfo(struct seq_file *m, void *unused)
max_freq = rp_state_cap & 0xff;
seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
max_freq * 50);
-
- __gen6_gt_force_wake_put(dev_priv);
} else {
seq_printf(m, "no P-state info available\n");
}
@@ -1058,6 +1065,9 @@ static int i915_fbc_status(struct seq_file *m, void *unused)
case FBC_MULTIPLE_PIPES:
seq_printf(m, "multiple pipes are enabled");
break;
+ case FBC_MODULE_PARAM:
+ seq_printf(m, "disabled per module param (default off)");
+ break;
default:
seq_printf(m, "unknown reason");
}
@@ -1186,6 +1196,42 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
return 0;
}
+static int i915_context_status(struct seq_file *m, void *unused)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->mode_config.mutex);
+ if (ret)
+ return ret;
+
+ seq_printf(m, "power context ");
+ describe_obj(m, dev_priv->pwrctx);
+ seq_printf(m, "\n");
+
+ seq_printf(m, "render context ");
+ describe_obj(m, dev_priv->renderctx);
+ seq_printf(m, "\n");
+
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return 0;
+}
+
+static int i915_gen6_forcewake_count_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;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ seq_printf(m, "forcewake count = %d\n",
+ atomic_read(&dev_priv->forcewake_count));
+
+ return 0;
+}
+
static int
i915_wedged_open(struct inode *inode,
struct file *filp)
@@ -1288,6 +1334,67 @@ static int i915_wedged_create(struct dentry *root, struct drm_minor *minor)
return drm_add_fake_info_node(minor, ent, &i915_wedged_fops);
}
+static int i915_forcewake_open(struct inode *inode, struct file *file)
+{
+ struct drm_device *dev = inode->i_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ int ret;
+
+ if (!IS_GEN6(dev))
+ return 0;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+ gen6_gt_force_wake_get(dev_priv);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+int i915_forcewake_release(struct inode *inode, struct file *file)
+{
+ struct drm_device *dev = inode->i_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (!IS_GEN6(dev))
+ return 0;
+
+ /*
+ * It's bad that we can potentially hang userspace if struct_mutex gets
+ * forever stuck. However, if we cannot acquire this lock it means that
+ * almost certainly the driver has hung, is not unload-able. Therefore
+ * hanging here is probably a minor inconvenience not to be seen my
+ * almost every user.
+ */
+ mutex_lock(&dev->struct_mutex);
+ gen6_gt_force_wake_put(dev_priv);
+ mutex_unlock(&dev->struct_mutex);
+
+ return 0;
+}
+
+static const struct file_operations i915_forcewake_fops = {
+ .owner = THIS_MODULE,
+ .open = i915_forcewake_open,
+ .release = i915_forcewake_release,
+};
+
+static int i915_forcewake_create(struct dentry *root, struct drm_minor *minor)
+{
+ struct drm_device *dev = minor->dev;
+ struct dentry *ent;
+
+ ent = debugfs_create_file("i915_forcewake_user",
+ S_IRUSR,
+ root, dev,
+ &i915_forcewake_fops);
+ if (IS_ERR(ent))
+ return PTR_ERR(ent);
+
+ return drm_add_fake_info_node(minor, ent, &i915_forcewake_fops);
+}
+
static struct drm_info_list i915_debugfs_list[] = {
{"i915_capabilities", i915_capabilities, 0},
{"i915_gem_objects", i915_gem_object_info, 0},
@@ -1324,6 +1431,8 @@ static struct drm_info_list i915_debugfs_list[] = {
{"i915_sr_status", i915_sr_status, 0},
{"i915_opregion", i915_opregion, 0},
{"i915_gem_framebuffer", i915_gem_framebuffer_info, 0},
+ {"i915_context_status", i915_context_status, 0},
+ {"i915_gen6_forcewake_count", i915_gen6_forcewake_count_info, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
@@ -1335,6 +1444,10 @@ int i915_debugfs_init(struct drm_minor *minor)
if (ret)
return ret;
+ ret = i915_forcewake_create(minor->debugfs_root, minor);
+ if (ret)
+ return ret;
+
return drm_debugfs_create_files(i915_debugfs_list,
I915_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
@@ -1344,6 +1457,8 @@ 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_forcewake_fops,
+ 1, minor);
drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops,
1, minor);
}