mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 10:04:12 +08:00
x86: add force_hpet boot option
add force_hpet boot option. (this will be useful to make the forced-enable quirks depend on.) Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
764922376c
commit
b17530bda2
@ -431,8 +431,10 @@ and is between 256 and 4096 characters. It is defined in the file
|
||||
over the 8254 in addition to over the IO-APIC. The
|
||||
kernel tries to set a sensible default.
|
||||
|
||||
hpet= [X86-32,HPET] option to disable HPET and use PIT.
|
||||
Format: disable
|
||||
hpet= [X86-32,HPET] option to control HPET usage
|
||||
Format: { enable (default) | disable | force }
|
||||
disable: disable HPET and use PIT instead
|
||||
force: allow force enabled of undocumented chips (ICH4, VIA)
|
||||
|
||||
com20020= [HW,NET] ARCnet - COM20020 chipset
|
||||
Format:
|
||||
|
@ -69,12 +69,15 @@ static inline void hpet_clear_mapping(void)
|
||||
* HPET command line enable / disable
|
||||
*/
|
||||
static int boot_hpet_disable;
|
||||
int hpet_force_user;
|
||||
|
||||
static int __init hpet_setup(char* str)
|
||||
{
|
||||
if (str) {
|
||||
if (!strncmp("disable", str, 7))
|
||||
boot_hpet_disable = 1;
|
||||
if (!strncmp("force", str, 5))
|
||||
hpet_force_user = 1;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
@ -64,6 +64,7 @@
|
||||
/* hpet memory map physical address */
|
||||
extern unsigned long hpet_address;
|
||||
extern unsigned long force_hpet_address;
|
||||
extern int hpet_force_user;
|
||||
extern int is_hpet_enabled(void);
|
||||
extern int hpet_enable(void);
|
||||
extern unsigned long hpet_readl(unsigned long a);
|
||||
|
Loading…
Reference in New Issue
Block a user