diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2015-06-09 15:02:50 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2015-06-09 22:25:41 +0200 |
| commit | 5793b7371dd82ad688164122850d63cdbda56859 (patch) | |
| tree | 2e0a01dac4bc8e04ea507c65dd79942bb34a290b /src/cpu/x86/tsc | |
| parent | 4f2f01a8fa4035c9c4c73dd7add490915ab4b31c (diff) | |
x86: remove printk() from init_timer()
For console drivers which use udelay() we can deadlock
in the printk path on the spinlock. The reason is that
on the first call to udelay() from within a console driver
it will go back down the printk() path deadlocking oneself.
Just remove the printk() as it was asymmetric on romstage
vs ramstage.
Change-Id: I30fe7d6e5b4684f17d4f353c0816b64f9242de0a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10483
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/cpu/x86/tsc')
| -rw-r--r-- | src/cpu/x86/tsc/delay_tsc.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/src/cpu/x86/tsc/delay_tsc.c b/src/cpu/x86/tsc/delay_tsc.c index 5aaba90ed9..0ad5d3bbdf 100644 --- a/src/cpu/x86/tsc/delay_tsc.c +++ b/src/cpu/x86/tsc/delay_tsc.c @@ -152,10 +152,8 @@ static unsigned long long calibrate_tsc(void) void init_timer(void) { - if (!clocks_per_usec) { + if (!clocks_per_usec) clocks_per_usec = calibrate_tsc(); - printk(BIOS_INFO, "clocks_per_usec: %lu\n", clocks_per_usec); - } } static inline unsigned long get_clocks_per_usec(void) |