sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

cpu/x86: Add support to run function with argument over APs

Browse Source 
This patch ensures that user can pass a function with given argument
list to execute over APs.

BUG=b:74436746
BRANCH=none
TEST=Able to run functions over APs with argument.

Change-Id: I668b36752f6b21cb99cd1416c385d53e96117213
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/25725
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Subrata Banik
2018-04-24 13:45:30 +05:30
committed by Patrick Georgi
parent 223fb436fe
commit 3337497d2a
14 changed files with 35 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
src/cpu/x86/mp_init.c
View File

@ -41,7 +41,8 @@
#define MAX_APIC_IDS 256
struct mp_callback {
void (*func)(void);
void (*func)(void *);
void *arg;
};
/*
@ -191,7 +192,7 @@ static void ap_do_flight_plan(void)
}
}
static void park_this_cpu(void)
static void park_this_cpu(void *unused)
{
stop_this_cpu();
}
@ -222,7 +223,7 @@ static void asmlinkage ap_init(unsigned int cpu)
ap_do_flight_plan();
/* Park the AP. */
park_this_cpu();
park_this_cpu(NULL);
}
static void setup_default_sipi_vector_params(struct sipi_params *sp)
@ -941,21 +942,22 @@ static void ap_wait_for_instruction(void)
memcpy(&lcb, cb, sizeof(lcb));
mfence();
store_callback(per_cpu_slot, NULL);
lcb.func();
lcb.func(lcb.arg);
}
}
int mp_run_on_aps(void (*func)(void), long expire_us)
int mp_run_on_aps(void (*func)(void *), void *arg, long expire_us)
{
struct mp_callback lcb = { .func = func };
struct mp_callback lcb = { .func = func, .arg = arg };
return run_ap_work(&lcb, expire_us);
}
int mp_run_on_all_cpus(void (*func)(void), long expire_us)
int mp_run_on_all_cpus(void (*func)(void *), void *arg, long expire_us)
{
/* Run on BSP first. */
func();
return mp_run_on_aps(func, expire_us);
func(arg);
return mp_run_on_aps(func, arg, expire_us);
}
int mp_park_aps(void)
@ -966,7 +968,7 @@ int mp_park_aps(void)
stopwatch_init(&sw);
ret = mp_run_on_aps(park_this_cpu, 250 * USECS_PER_MSEC);
ret = mp_run_on_aps(park_this_cpu, NULL, 250 * USECS_PER_MSEC);
duration_msecs = stopwatch_duration_msecs(&sw);