diff options
Diffstat (limited to 'drivers/gpu/drm/drm_file.c')
| -rw-r--r-- | drivers/gpu/drm/drm_file.c | 66 |
1 files changed, 58 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c index 2289e71e2fa2..246cf845e2c9 100644 --- a/drivers/gpu/drm/drm_file.c +++ b/drivers/gpu/drm/drm_file.c @@ -830,8 +830,11 @@ void drm_send_event(struct drm_device *dev, struct drm_pending_event *e) } EXPORT_SYMBOL(drm_send_event); -static void print_size(struct drm_printer *p, const char *stat, - const char *region, u64 sz) +void drm_fdinfo_print_size(struct drm_printer *p, + const char *prefix, + const char *stat, + const char *region, + u64 sz) { const char *units[] = {"", " KiB", " MiB"}; unsigned u; @@ -842,8 +845,10 @@ static void print_size(struct drm_printer *p, const char *stat, sz = div_u64(sz, SZ_1K); } - drm_printf(p, "drm-%s-%s:\t%llu%s\n", stat, region, sz, units[u]); + drm_printf(p, "%s-%s-%s:\t%llu%s\n", + prefix, stat, region, sz, units[u]); } +EXPORT_SYMBOL(drm_fdinfo_print_size); int drm_memory_stats_is_zero(const struct drm_memory_stats *stats) { @@ -868,17 +873,22 @@ void drm_print_memory_stats(struct drm_printer *p, enum drm_gem_object_status supported_status, const char *region) { - print_size(p, "total", region, stats->private + stats->shared); - print_size(p, "shared", region, stats->shared); + const char *prefix = "drm"; + + drm_fdinfo_print_size(p, prefix, "total", region, + stats->private + stats->shared); + drm_fdinfo_print_size(p, prefix, "shared", region, stats->shared); if (supported_status & DRM_GEM_OBJECT_ACTIVE) - print_size(p, "active", region, stats->active); + drm_fdinfo_print_size(p, prefix, "active", region, stats->active); if (supported_status & DRM_GEM_OBJECT_RESIDENT) - print_size(p, "resident", region, stats->resident); + drm_fdinfo_print_size(p, prefix, "resident", region, + stats->resident); if (supported_status & DRM_GEM_OBJECT_PURGEABLE) - print_size(p, "purgeable", region, stats->purgeable); + drm_fdinfo_print_size(p, prefix, "purgeable", region, + stats->purgeable); } EXPORT_SYMBOL(drm_print_memory_stats); @@ -954,6 +964,10 @@ void drm_show_fdinfo(struct seq_file *m, struct file *f) struct drm_file *file = f->private_data; struct drm_device *dev = file->minor->dev; struct drm_printer p = drm_seq_file_printer(m); + int idx; + + if (!drm_dev_enter(dev, &idx)) + return; drm_printf(&p, "drm-driver:\t%s\n", dev->driver->name); drm_printf(&p, "drm-client-id:\t%llu\n", file->client_id); @@ -973,10 +987,46 @@ void drm_show_fdinfo(struct seq_file *m, struct file *f) if (dev->driver->show_fdinfo) dev->driver->show_fdinfo(&p, file); + + drm_dev_exit(idx); } EXPORT_SYMBOL(drm_show_fdinfo); /** + * drm_file_err - log process name, pid and client_name associated with a drm_file + * @file_priv: context of interest for process name and pid + * @fmt: printf() like format string + * + * Helper function for clients which needs to log process details such + * as name and pid etc along with user logs. + */ +void drm_file_err(struct drm_file *file_priv, const char *fmt, ...) +{ + va_list args; + struct va_format vaf; + struct pid *pid; + struct task_struct *task; + struct drm_device *dev = file_priv->minor->dev; + + va_start(args, fmt); + vaf.fmt = fmt; + vaf.va = &args; + + mutex_lock(&file_priv->client_name_lock); + rcu_read_lock(); + pid = rcu_dereference(file_priv->pid); + task = pid_task(pid, PIDTYPE_TGID); + + drm_err(dev, "comm: %s pid: %d client: %s ... %pV", task ? task->comm : "Unset", + task ? task->pid : 0, file_priv->client_name ?: "Unset", &vaf); + + va_end(args); + rcu_read_unlock(); + mutex_unlock(&file_priv->client_name_lock); +} +EXPORT_SYMBOL(drm_file_err); + +/** * mock_drm_getfile - Create a new struct file for the drm device * @minor: drm minor to wrap (e.g. #drm_device.primary) * @flags: file creation mode (O_RDWR etc) |