diff options
| author | Masao Uebayashi <uebayasi@cvs.openbsd.org> | 2014-10-15 15:55:43 +0000 |
|---|---|---|
| committer | Masao Uebayashi <uebayasi@cvs.openbsd.org> | 2014-10-15 15:55:43 +0000 |
| commit | 9951467bab8dfd0733405b864ee48b0977e2253c (patch) | |
| tree | 31fef5345707f449a7d54d18e0ef22dfe96e38c5 | |
| parent | f281280815b3653da32b6bb90c5a48722baeaf23 (diff) | |
Sprinkle CPU_BUSY_CYCLE() in a few places.
OK kettenis@
| -rw-r--r-- | sys/arch/amd64/amd64/db_interface.c | 4 | ||||
| -rw-r--r-- | sys/dev/ic/pckbc.c | 4 |
2 files changed, 5 insertions, 3 deletions
diff --git a/sys/arch/amd64/amd64/db_interface.c b/sys/arch/amd64/amd64/db_interface.c index 4aae2aa3252..adcc52de28d 100644 --- a/sys/arch/amd64/amd64/db_interface.c +++ b/sys/arch/amd64/amd64/db_interface.c @@ -1,4 +1,4 @@ -/* $OpenBSD: db_interface.c,v 1.20 2014/10/15 15:54:47 uebayasi Exp $ */ +/* $OpenBSD: db_interface.c,v 1.21 2014/10/15 15:55:42 uebayasi Exp $ */ /* $NetBSD: db_interface.c,v 1.1 2003/04/26 18:39:27 fvdl Exp $ */ /* @@ -312,7 +312,7 @@ db_enter_ddb(void) /* Busy wait without locking, we'll confirm with lock later */ while (ddb_active_cpu != cpu_number() && curcpu()->ci_ddb_paused != CI_DDB_RUNNING) - ; /* Do nothing */ + CPU_BUSY_CYCLE(); mtx_enter(&ddb_mp_mutex); } diff --git a/sys/dev/ic/pckbc.c b/sys/dev/ic/pckbc.c index a8d5a0f422a..0f5e98a841f 100644 --- a/sys/dev/ic/pckbc.c +++ b/sys/dev/ic/pckbc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pckbc.c,v 1.41 2014/10/15 15:54:47 uebayasi Exp $ */ +/* $OpenBSD: pckbc.c,v 1.42 2014/10/15 15:55:42 uebayasi Exp $ */ /* $NetBSD: pckbc.c,v 1.5 2000/06/09 04:58:35 soda Exp $ */ /* @@ -37,6 +37,7 @@ #include <sys/lock.h> #include <machine/bus.h> +#include <machine/cpu.h> #include <dev/ic/i8042reg.h> #include <dev/ic/pckbcvar.h> @@ -151,6 +152,7 @@ pckbc_poll_data1(bus_space_tag_t iot, bus_space_handle_t ioh_d, register u_char c; KBD_DELAY; + CPU_BUSY_CYCLE(); c = bus_space_read_1(iot, ioh_d, 0); if (checkaux && (stat & 0x20)) { /* aux data */ if (slot != PCKBC_AUX_SLOT) { |