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-rw-r--r--kernel/printk/internal.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/kernel/printk/internal.h b/kernel/printk/internal.h
index 7d4979d5c3..6c2afee5ef 100644
--- a/kernel/printk/internal.h
+++ b/kernel/printk/internal.h
@@ -3,6 +3,8 @@
* internal.h - printk internal definitions
*/
#include <linux/percpu.h>
+#include <linux/console.h>
+#include "printk_ringbuffer.h"
#if defined(CONFIG_PRINTK) && defined(CONFIG_SYSCTL)
void __init printk_sysctl_init(void);
@@ -12,6 +14,12 @@ int devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write,
#define printk_sysctl_init() do { } while (0)
#endif
+#define con_printk(lvl, con, fmt, ...) \
+ printk(lvl pr_fmt("%s%sconsole [%s%d] " fmt), \
+ (con->flags & CON_NBCON) ? "" : "legacy ", \
+ (con->flags & CON_BOOT) ? "boot" : "", \
+ con->name, con->index, ##__VA_ARGS__)
+
#ifdef CONFIG_PRINTK
#ifdef CONFIG_PRINTK_CALLER
@@ -35,6 +43,8 @@ enum printk_info_flags {
LOG_CONT = 8, /* text is a fragment of a continuation line */
};
+extern struct printk_ringbuffer *prb;
+
__printf(4, 0)
int vprintk_store(int facility, int level,
const struct dev_printk_info *dev_info,
@@ -61,6 +71,13 @@ void defer_console_output(void);
u16 printk_parse_prefix(const char *text, int *level,
enum printk_info_flags *flags);
+
+u64 nbcon_seq_read(struct console *con);
+void nbcon_seq_force(struct console *con, u64 seq);
+bool nbcon_alloc(struct console *con);
+void nbcon_init(struct console *con);
+void nbcon_free(struct console *con);
+
#else
#define PRINTK_PREFIX_MAX 0
@@ -76,8 +93,16 @@ u16 printk_parse_prefix(const char *text, int *level,
#define printk_safe_exit_irqrestore(flags) local_irq_restore(flags)
static inline bool printk_percpu_data_ready(void) { return false; }
+static inline u64 nbcon_seq_read(struct console *con) { return 0; }
+static inline void nbcon_seq_force(struct console *con, u64 seq) { }
+static inline bool nbcon_alloc(struct console *con) { return false; }
+static inline void nbcon_init(struct console *con) { }
+static inline void nbcon_free(struct console *con) { }
+
#endif /* CONFIG_PRINTK */
+extern struct printk_buffers printk_shared_pbufs;
+
/**
* struct printk_buffers - Buffers to read/format/output printk messages.
* @outbuf: After formatting, contains text to output.
@@ -105,3 +130,9 @@ struct printk_message {
};
bool other_cpu_in_panic(void);
+bool printk_get_next_message(struct printk_message *pmsg, u64 seq,
+ bool is_extended, bool may_supress);
+
+#ifdef CONFIG_PRINTK
+void console_prepend_dropped(struct printk_message *pmsg, unsigned long dropped);
+#endif