src/console/init.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <commonlib/helpers.h>
   4 #include <console/console.h>
   5 #include <console/uart.h>
   6 #include <console/streams.h>
   7 #include <device/pci.h>
   8 #include <option.h>
   9 #include <version.h>
  10
  11 /* Mutable console log level only allowed when RAM comes online. */
  12 #define CONSOLE_LEVEL_CONST !ENV_STAGE_HAS_DATA_SECTION
  13
  14 static int console_inited;
  15 static int console_loglevel = CONFIG_DEFAULT_CONSOLE_LOGLEVEL;
  16
  17 static inline int get_log_level(void)
  18 {
  19         if (console_inited == 0)
  20                 return -1;
  21         if (CONSOLE_LEVEL_CONST)
  22                 return get_console_loglevel();
  23
  24         return console_loglevel;
  25 }
  26
  27 static inline void set_log_level(int new_level)
  28 {
  29         if (CONSOLE_LEVEL_CONST)
  30                 return;
  31
  32         console_loglevel = new_level;
  33 }
  34
  35 static void init_log_level(void)
  36 {
  37         int debug_level = get_console_loglevel();
  38
  39         if (CONSOLE_LEVEL_CONST)
  40                 return;
  41
  42         get_option(&debug_level, "debug_level");
  43
  44         set_log_level(debug_level);
  45 }
  46
  47 int console_log_level(int msg_level)
  48 {
  49         int log_level = get_log_level();
  50
  51         if (log_level < 0)
  52                 return CONSOLE_LOG_NONE;
  53
  54         if (msg_level <= log_level)
  55                 return CONSOLE_LOG_ALL;
  56
  57         if (CONFIG(CONSOLE_CBMEM) && (msg_level <= BIOS_DEBUG))
  58                 return CONSOLE_LOG_FAST;
  59
  60         return 0;
  61 }
  62
  63 asmlinkage void console_init(void)
  64 {
  65         init_log_level();
  66
  67         if (CONFIG(DEBUG_CONSOLE_INIT))
  68                 console_inited = 1;
  69
  70         if (CONFIG(EARLY_PCI_BRIDGE) && (ENV_BOOTBLOCK || ENV_ROMSTAGE))
  71                 pci_early_bridge_init();
  72
  73         console_hw_init();
  74
  75         console_inited = 1;
  76
  77         printk(BIOS_NOTICE, "\n\ncoreboot-%s%s %s " ENV_STRING " starting (log level: %i)...\n",
  78                coreboot_version, coreboot_extra_version, coreboot_build,
  79                get_log_level());
  80 }