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Diffstat (limited to 'arch/x86/kernel/early_printk.c')
-rw-r--r--arch/x86/kernel/early_printk.c47
1 files changed, 0 insertions, 47 deletions
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 34ad997d3834..23b138e31e9c 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -875,49 +875,6 @@ static struct console early_dbgp_console = {
875}; 875};
876#endif 876#endif
877 877
878/* Console interface to a host file on AMD's SimNow! */
879
880static int simnow_fd;
881
882enum {
883 MAGIC1 = 0xBACCD00A,
884 MAGIC2 = 0xCA110000,
885 XOPEN = 5,
886 XWRITE = 4,
887};
888
889static noinline long simnow(long cmd, long a, long b, long c)
890{
891 long ret;
892
893 asm volatile("cpuid" :
894 "=a" (ret) :
895 "b" (a), "c" (b), "d" (c), "0" (MAGIC1), "D" (cmd + MAGIC2));
896 return ret;
897}
898
899static void __init simnow_init(char *str)
900{
901 char *fn = "klog";
902
903 if (*str == '=')
904 fn = ++str;
905 /* error ignored */
906 simnow_fd = simnow(XOPEN, (unsigned long)fn, O_WRONLY|O_APPEND|O_CREAT, 0644);
907}
908
909static void simnow_write(struct console *con, const char *s, unsigned n)
910{
911 simnow(XWRITE, simnow_fd, (unsigned long)s, n);
912}
913
914static struct console simnow_console = {
915 .name = "simnow",
916 .write = simnow_write,
917 .flags = CON_PRINTBUFFER,
918 .index = -1,
919};
920
921/* Direct interface for emergencies */ 878/* Direct interface for emergencies */
922static struct console *early_console = &early_vga_console; 879static struct console *early_console = &early_vga_console;
923static int __initdata early_console_initialized; 880static int __initdata early_console_initialized;
@@ -960,10 +917,6 @@ static int __init setup_early_printk(char *buf)
960 max_ypos = boot_params.screen_info.orig_video_lines; 917 max_ypos = boot_params.screen_info.orig_video_lines;
961 current_ypos = boot_params.screen_info.orig_y; 918 current_ypos = boot_params.screen_info.orig_y;
962 early_console = &early_vga_console; 919 early_console = &early_vga_console;
963 } else if (!strncmp(buf, "simnow", 6)) {
964 simnow_init(buf + 6);
965 early_console = &simnow_console;
966 keep_early = 1;
967#ifdef CONFIG_EARLY_PRINTK_DBGP 920#ifdef CONFIG_EARLY_PRINTK_DBGP
968 } else if (!strncmp(buf, "dbgp", 4)) { 921 } else if (!strncmp(buf, "dbgp", 4)) {
969 if (early_dbgp_init(buf+4) < 0) 922 if (early_dbgp_init(buf+4) < 0)