From: Rob Clark robdclark@chromium.org
Signed-off-by: Rob Clark robdclark@chromium.org --- v2: Drop unneeded msm_kms_show_priv [Dmitry B]
drivers/gpu/drm/msm/msm_debugfs.c | 75 +++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+)
diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c index 956b1efc3721..0804c31e8962 100644 --- a/drivers/gpu/drm/msm/msm_debugfs.c +++ b/drivers/gpu/drm/msm/msm_debugfs.c @@ -15,6 +15,11 @@ #include "msm_gpu.h" #include "msm_kms.h" #include "msm_debugfs.h" +#include "disp/msm_disp_snapshot.h" + +/* + * GPU Snapshot: + */
struct msm_gpu_show_priv { struct msm_gpu_state *state; @@ -109,6 +114,73 @@ static const struct file_operations msm_gpu_fops = { .release = msm_gpu_release, };
+/* + * Display Snapshot: + */ + +static int msm_kms_show(struct seq_file *m, void *arg) +{ + struct drm_printer p = drm_seq_file_printer(m); + struct msm_disp_state *state = m->private; + + msm_disp_state_print(state, &p); + + return 0; +} + +static int msm_kms_release(struct inode *inode, struct file *file) +{ + struct seq_file *m = file->private_data; + struct msm_disp_state *state = m->private; + + msm_disp_state_free(state); + + return single_release(inode, file); +} + +static int msm_kms_open(struct inode *inode, struct file *file) +{ + struct drm_device *dev = inode->i_private; + struct msm_drm_private *priv = dev->dev_private; + struct msm_disp_state *state; + int ret; + + if (!priv->kms) + return -ENODEV; + + ret = mutex_lock_interruptible(&priv->kms->dump_mutex); + if (ret) + return ret; + + state = msm_disp_snapshot_state_sync(priv->kms); + + mutex_unlock(&priv->kms->dump_mutex); + + if (IS_ERR(state)) { + return PTR_ERR(state); + } + + ret = single_open(file, msm_kms_show, state); + if (ret) { + msm_disp_state_free(state); + return ret; + } + + return 0; +} + +static const struct file_operations msm_kms_fops = { + .owner = THIS_MODULE, + .open = msm_kms_open, + .read = seq_read, + .llseek = seq_lseek, + .release = msm_kms_release, +}; + +/* + * Other debugfs: + */ + static unsigned long last_shrink_freed;
static int @@ -239,6 +311,9 @@ void msm_debugfs_init(struct drm_minor *minor) debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root, dev, &msm_gpu_fops);
+ debugfs_create_file("kms", S_IRUSR, minor->debugfs_root, + dev, &msm_kms_fops); + debugfs_create_u32("hangcheck_period_ms", 0600, minor->debugfs_root, &priv->hangcheck_period);