Commit c185b783 authored by Martin Schwidefsky's avatar Martin Schwidefsky

[S390] Remove config options.

On s390 we always want to run with precise cputime accounting.
Remove the config options VIRT_TIMER and VIRT_CPU_ACCOUNTING.
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 349f1b67
......@@ -69,6 +69,9 @@ config PGSTE
bool
default y if KVM
config VIRT_CPU_ACCOUNTING
def_bool y
mainmenu "Linux Kernel Configuration"
config S390
......@@ -469,22 +472,9 @@ config PAGE_STATES
hypervisor. The ESSA instruction is used to do the states
changes between a page that has content and the unused state.
config VIRT_TIMER
bool "Virtual CPU timer support"
help
This provides a kernel interface for virtual CPU timers.
Default is disabled.
config VIRT_CPU_ACCOUNTING
bool "Base user process accounting on virtual cpu timer"
depends on VIRT_TIMER
help
Select this option to use CPU timer deltas to do user
process accounting.
config APPLDATA_BASE
bool "Linux - VM Monitor Stream, base infrastructure"
depends on PROC_FS && VIRT_TIMER=y
depends on PROC_FS
help
This provides a kernel interface for creating and updating z/VM APPLDATA
monitor records. The monitor records are updated at certain time
......
......@@ -99,13 +99,9 @@ static inline void restore_access_regs(unsigned int *acrs)
prev = __switch_to(prev,next); \
} while (0)
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
extern void account_vtime(struct task_struct *);
extern void account_tick_vtime(struct task_struct *);
extern void account_system_vtime(struct task_struct *);
#else
#define account_vtime(x) do { /* empty */ } while (0)
#endif
#ifdef CONFIG_PFAULT
extern void pfault_irq_init(void);
......
......@@ -48,18 +48,9 @@ extern int del_virt_timer(struct vtimer_list *timer);
extern void init_cpu_vtimer(void);
extern void vtime_init(void);
#ifdef CONFIG_VIRT_TIMER
extern void vtime_start_cpu_timer(void);
extern void vtime_stop_cpu_timer(void);
#else
static inline void vtime_start_cpu_timer(void) { }
static inline void vtime_stop_cpu_timer(void) { }
#endif /* CONFIG_VIRT_TIMER */
#endif /* __KERNEL__ */
#endif /* _ASM_S390_TIMER_H */
......@@ -20,7 +20,7 @@ CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"'
obj-y := bitmap.o traps.o time.o process.o base.o early.o \
setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
s390_ext.o debug.o irq.o ipl.o dis.o diag.o mem_detect.o \
vdso.o
vdso.o vtime.o
obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o)
obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o)
......@@ -36,7 +36,6 @@ obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o \
compat_wrapper.o compat_exec_domain.o \
$(compat-obj-y)
obj-$(CONFIG_VIRT_TIMER) += vtime.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o
obj-$(CONFIG_KPROBES) += kprobes.o
obj-$(CONFIG_FUNCTION_TRACER) += mcount.o
......
......@@ -109,13 +109,6 @@ STACK_SIZE = 1 << STACK_SHIFT
* R15 - kernel stack pointer
*/
.macro STORE_TIMER lc_offset
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
stpt \lc_offset
#endif
.endm
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.macro UPDATE_VTIME lc_from,lc_to,lc_sum
lm %r10,%r11,\lc_from
sl %r10,\lc_to
......@@ -128,7 +121,6 @@ STACK_SIZE = 1 << STACK_SHIFT
al %r10,BASED(.Lc_1)
1: stm %r10,%r11,\lc_sum
.endm
#endif
.macro SAVE_ALL_BASE savearea
stm %r12,%r15,\savearea
......@@ -198,7 +190,7 @@ STACK_SIZE = 1 << STACK_SHIFT
ni \psworg+1,0xfd # clear wait state bit
.endif
lm %r0,%r15,SP_R0(%r15) # load gprs 0-15 of user
STORE_TIMER __LC_EXIT_TIMER
stpt __LC_EXIT_TIMER
lpsw \psworg # back to caller
.endm
......@@ -247,20 +239,18 @@ __critical_start:
.globl system_call
system_call:
STORE_TIMER __LC_SYNC_ENTER_TIMER
stpt __LC_SYNC_ENTER_TIMER
sysc_saveall:
SAVE_ALL_BASE __LC_SAVE_AREA
SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
lh %r7,0x8a # get svc number from lowcore
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
sysc_vtime:
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
sysc_stime:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
sysc_update:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
#endif
sysc_do_svc:
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
ltr %r7,%r7 # test for svc 0
......@@ -490,20 +480,18 @@ pgm_check_handler:
* we just ignore the PER event (FIXME: is there anything we have to do
* for LPSW?).
*/
STORE_TIMER __LC_SYNC_ENTER_TIMER
stpt __LC_SYNC_ENTER_TIMER
SAVE_ALL_BASE __LC_SAVE_AREA
tm __LC_PGM_INT_CODE+1,0x80 # check whether we got a per exception
bnz BASED(pgm_per) # got per exception -> special case
SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
bz BASED(pgm_no_vtime)
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
pgm_no_vtime:
#endif
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
l %r3,__LC_PGM_ILC # load program interruption code
......@@ -536,14 +524,12 @@ pgm_per:
pgm_per_std:
SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
bz BASED(pgm_no_vtime2)
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
pgm_no_vtime2:
#endif
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
l %r1,__TI_task(%r9)
......@@ -565,11 +551,9 @@ pgm_no_vtime2:
pgm_svcper:
SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
#endif
lh %r7,0x8a # get svc number from lowcore
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
......@@ -599,19 +583,17 @@ kernel_per:
.globl io_int_handler
io_int_handler:
STORE_TIMER __LC_ASYNC_ENTER_TIMER
stpt __LC_ASYNC_ENTER_TIMER
stck __LC_INT_CLOCK
SAVE_ALL_BASE __LC_SAVE_AREA+16
SAVE_ALL_ASYNC __LC_IO_OLD_PSW,__LC_SAVE_AREA+16
CREATE_STACK_FRAME __LC_IO_OLD_PSW,__LC_SAVE_AREA+16
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
bz BASED(io_no_vtime)
UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
io_no_vtime:
#endif
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
l %r1,BASED(.Ldo_IRQ) # load address of do_IRQ
......@@ -741,19 +723,17 @@ io_notify_resume:
.globl ext_int_handler
ext_int_handler:
STORE_TIMER __LC_ASYNC_ENTER_TIMER
stpt __LC_ASYNC_ENTER_TIMER
stck __LC_INT_CLOCK
SAVE_ALL_BASE __LC_SAVE_AREA+16
SAVE_ALL_ASYNC __LC_EXT_OLD_PSW,__LC_SAVE_AREA+16
CREATE_STACK_FRAME __LC_EXT_OLD_PSW,__LC_SAVE_AREA+16
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
bz BASED(ext_no_vtime)
UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
ext_no_vtime:
#endif
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
la %r2,SP_PTREGS(%r15) # address of register-save area
......@@ -776,7 +756,6 @@ mcck_int_handler:
la %r12,__LC_MCK_OLD_PSW
tm __LC_MCCK_CODE,0x80 # system damage?
bo BASED(mcck_int_main) # yes -> rest of mcck code invalid
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_SAVE_AREA+52(8),__LC_ASYNC_ENTER_TIMER
mvc __LC_ASYNC_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA
tm __LC_MCCK_CODE+5,0x02 # stored cpu timer value valid?
......@@ -793,9 +772,7 @@ mcck_int_handler:
la %r14,__LC_LAST_UPDATE_TIMER
0: spt 0(%r14)
mvc __LC_ASYNC_ENTER_TIMER(8),0(%r14)
1:
#endif
tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
1: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
bno BASED(mcck_int_main) # no -> skip cleanup critical
tm __LC_MCK_OLD_PSW+1,0x01 # test problem state bit
bnz BASED(mcck_int_main) # from user -> load async stack
......@@ -812,7 +789,6 @@ mcck_int_main:
be BASED(0f)
l %r15,__LC_PANIC_STACK # load panic stack
0: CREATE_STACK_FRAME __LC_MCK_OLD_PSW,__LC_SAVE_AREA+32
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
bno BASED(mcck_no_vtime) # no -> skip cleanup critical
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
......@@ -821,7 +797,6 @@ mcck_int_main:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
mcck_no_vtime:
#endif
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
la %r2,SP_PTREGS(%r15) # load pt_regs
l %r1,BASED(.Ls390_mcck)
......@@ -843,16 +818,13 @@ mcck_no_vtime:
mcck_return:
mvc __LC_RETURN_MCCK_PSW(8),SP_PSW(%r15) # move return PSW
ni __LC_RETURN_MCCK_PSW+1,0xfd # clear wait state bit
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_ASYNC_ENTER_TIMER(8),__LC_SAVE_AREA+52
tm __LC_RETURN_MCCK_PSW+1,0x01 # returning to user ?
bno BASED(0f)
lm %r0,%r15,SP_R0(%r15) # load gprs 0-15
stpt __LC_EXIT_TIMER
lpsw __LC_RETURN_MCCK_PSW # back to caller
0:
#endif
lm %r0,%r15,SP_R0(%r15) # load gprs 0-15
0: lm %r0,%r15,SP_R0(%r15) # load gprs 0-15
lpsw __LC_RETURN_MCCK_PSW # back to caller
RESTORE_ALL __LC_RETURN_MCCK_PSW,0
......@@ -976,13 +948,11 @@ cleanup_system_call:
b BASED(1f)
0: la %r12,__LC_SAVE_AREA+32
1:
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+4)
bh BASED(0f)
mvc __LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER
0: clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+8)
bhe BASED(cleanup_vtime)
#endif
clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn)
bh BASED(0f)
mvc __LC_SAVE_AREA(16),0(%r12)
......@@ -993,7 +963,6 @@ cleanup_system_call:
l %r12,__LC_SAVE_AREA+48 # argh
st %r15,12(%r12)
lh %r7,0x8a
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
cleanup_vtime:
clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+12)
bhe BASED(cleanup_stime)
......@@ -1004,18 +973,15 @@ cleanup_stime:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
cleanup_update:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
#endif
mvc __LC_RETURN_PSW+4(4),BASED(cleanup_table_system_call+4)
la %r12,__LC_RETURN_PSW
br %r14
cleanup_system_call_insn:
.long sysc_saveall + 0x80000000
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.long system_call + 0x80000000
.long sysc_vtime + 0x80000000
.long sysc_stime + 0x80000000
.long sysc_update + 0x80000000
#endif
cleanup_sysc_return:
mvc __LC_RETURN_PSW(4),0(%r12)
......@@ -1026,11 +992,9 @@ cleanup_sysc_return:
cleanup_sysc_leave:
clc 4(4,%r12),BASED(cleanup_sysc_leave_insn)
be BASED(2f)
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
clc 4(4,%r12),BASED(cleanup_sysc_leave_insn+4)
be BASED(2f)
#endif
mvc __LC_RETURN_PSW(8),SP_PSW(%r15)
c %r12,BASED(.Lmck_old_psw)
bne BASED(0f)
......@@ -1043,9 +1007,7 @@ cleanup_sysc_leave:
br %r14
cleanup_sysc_leave_insn:
.long sysc_done - 4 + 0x80000000
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.long sysc_done - 8 + 0x80000000
#endif
cleanup_io_return:
mvc __LC_RETURN_PSW(4),0(%r12)
......@@ -1056,11 +1018,9 @@ cleanup_io_return:
cleanup_io_leave:
clc 4(4,%r12),BASED(cleanup_io_leave_insn)
be BASED(2f)
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
clc 4(4,%r12),BASED(cleanup_io_leave_insn+4)
be BASED(2f)
#endif
mvc __LC_RETURN_PSW(8),SP_PSW(%r15)
c %r12,BASED(.Lmck_old_psw)
bne BASED(0f)
......@@ -1073,9 +1033,7 @@ cleanup_io_leave:
br %r14
cleanup_io_leave_insn:
.long io_done - 4 + 0x80000000
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.long io_done - 8 + 0x80000000
#endif
/*
* Integer constants
......
......@@ -96,20 +96,12 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
#define LOCKDEP_SYS_EXIT
#endif
.macro STORE_TIMER lc_offset
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
stpt \lc_offset
#endif
.endm
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.macro UPDATE_VTIME lc_from,lc_to,lc_sum
lg %r10,\lc_from
slg %r10,\lc_to
alg %r10,\lc_sum
stg %r10,\lc_sum
.endm
#endif
/*
* Register usage in interrupt handlers:
......@@ -186,7 +178,7 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
ni \psworg+1,0xfd # clear wait state bit
.endif
lmg %r0,%r15,SP_R0(%r15) # load gprs 0-15 of user
STORE_TIMER __LC_EXIT_TIMER
stpt __LC_EXIT_TIMER
lpswe \psworg # back to caller
.endm
......@@ -233,20 +225,18 @@ __critical_start:
.globl system_call
system_call:
STORE_TIMER __LC_SYNC_ENTER_TIMER
stpt __LC_SYNC_ENTER_TIMER
sysc_saveall:
SAVE_ALL_BASE __LC_SAVE_AREA
SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
llgh %r7,__LC_SVC_INT_CODE # get svc number from lowcore
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
sysc_vtime:
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
sysc_stime:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
sysc_update:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
#endif
sysc_do_svc:
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
ltgr %r7,%r7 # test for svc 0
......@@ -469,20 +459,18 @@ pgm_check_handler:
* we just ignore the PER event (FIXME: is there anything we have to do
* for LPSW?).
*/
STORE_TIMER __LC_SYNC_ENTER_TIMER
stpt __LC_SYNC_ENTER_TIMER
SAVE_ALL_BASE __LC_SAVE_AREA
tm __LC_PGM_INT_CODE+1,0x80 # check whether we got a per exception
jnz pgm_per # got per exception -> special case
SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz pgm_no_vtime
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
pgm_no_vtime:
#endif
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
mvc SP_ARGS(8,%r15),__LC_LAST_BREAK
TRACE_IRQS_OFF
......@@ -516,14 +504,12 @@ pgm_per:
pgm_per_std:
SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz pgm_no_vtime2
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
pgm_no_vtime2:
#endif
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
lg %r1,__TI_task(%r9)
......@@ -545,11 +531,9 @@ pgm_no_vtime2:
pgm_svcper:
SAVE_ALL_SYNC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
CREATE_STACK_FRAME __LC_SVC_OLD_PSW,__LC_SAVE_AREA
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
#endif
llgh %r7,__LC_SVC_INT_CODE # get svc number from lowcore
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
lg %r1,__TI_task(%r9)
......@@ -575,19 +559,17 @@ kernel_per:
*/
.globl io_int_handler
io_int_handler:
STORE_TIMER __LC_ASYNC_ENTER_TIMER
stpt __LC_ASYNC_ENTER_TIMER
stck __LC_INT_CLOCK
SAVE_ALL_BASE __LC_SAVE_AREA+32
SAVE_ALL_ASYNC __LC_IO_OLD_PSW,__LC_SAVE_AREA+32
CREATE_STACK_FRAME __LC_IO_OLD_PSW,__LC_SAVE_AREA+32
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz io_no_vtime
UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
io_no_vtime:
#endif
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
la %r2,SP_PTREGS(%r15) # address of register-save area
......@@ -739,19 +721,17 @@ io_notify_resume:
*/
.globl ext_int_handler
ext_int_handler:
STORE_TIMER __LC_ASYNC_ENTER_TIMER
stpt __LC_ASYNC_ENTER_TIMER
stck __LC_INT_CLOCK
SAVE_ALL_BASE __LC_SAVE_AREA+32
SAVE_ALL_ASYNC __LC_EXT_OLD_PSW,__LC_SAVE_AREA+32
CREATE_STACK_FRAME __LC_EXT_OLD_PSW,__LC_SAVE_AREA+32
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
jz ext_no_vtime
UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
ext_no_vtime:
#endif
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
la %r2,SP_PTREGS(%r15) # address of register-save area
......@@ -773,7 +753,6 @@ mcck_int_handler:
la %r12,__LC_MCK_OLD_PSW
tm __LC_MCCK_CODE,0x80 # system damage?
jo mcck_int_main # yes -> rest of mcck code invalid
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
la %r14,4095
mvc __LC_SAVE_AREA+104(8),__LC_ASYNC_ENTER_TIMER
mvc __LC_ASYNC_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA-4095(%r14)
......@@ -791,9 +770,7 @@ mcck_int_handler:
la %r14,__LC_LAST_UPDATE_TIMER
0: spt 0(%r14)
mvc __LC_ASYNC_ENTER_TIMER(8),0(%r14)
1:
#endif
tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
1: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
jno mcck_int_main # no -> skip cleanup critical
tm __LC_MCK_OLD_PSW+1,0x01 # test problem state bit
jnz mcck_int_main # from user -> load kernel stack
......@@ -809,7 +786,6 @@ mcck_int_main:
jz 0f
lg %r15,__LC_PANIC_STACK # load panic stack
0: CREATE_STACK_FRAME __LC_MCK_OLD_PSW,__LC_SAVE_AREA+64
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
jno mcck_no_vtime # no -> no timer update
tm SP_PSW+1(%r15),0x01 # interrupting from user ?
......@@ -818,7 +794,6 @@ mcck_int_main:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
mcck_no_vtime:
#endif
lg %r9,__LC_THREAD_INFO # load pointer to thread_info struct
la %r2,SP_PTREGS(%r15) # load pt_regs
brasl %r14,s390_do_machine_check
......@@ -839,14 +814,11 @@ mcck_return:
mvc __LC_RETURN_MCCK_PSW(16),SP_PSW(%r15) # move return PSW
ni __LC_RETURN_MCCK_PSW+1,0xfd # clear wait state bit
lmg %r0,%r15,SP_R0(%r15) # load gprs 0-15
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_ASYNC_ENTER_TIMER(8),__LC_SAVE_AREA+104
tm __LC_RETURN_MCCK_PSW+1,0x01 # returning to user ?
jno 0f
stpt __LC_EXIT_TIMER
0:
#endif
lpswe __LC_RETURN_MCCK_PSW # back to caller
0: lpswe __LC_RETURN_MCCK_PSW # back to caller
/*
* Restart interruption handler, kick starter for additional CPUs
......@@ -964,13 +936,11 @@ cleanup_system_call:
j 1f
0: la %r12,__LC_SAVE_AREA+64
1:
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
clc __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+8)
jh 0f
mvc __LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER
0: clc __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+16)
jhe cleanup_vtime
#endif
clc __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn)
jh 0f
mvc __LC_SAVE_AREA(32),0(%r12)
......@@ -981,7 +951,6 @@ cleanup_system_call:
lg %r12,__LC_SAVE_AREA+96 # argh
stg %r15,24(%r12)
llgh %r7,__LC_SVC_INT_CODE
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
cleanup_vtime:
clc __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+24)
jhe cleanup_stime
......@@ -992,18 +961,15 @@ cleanup_stime:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
cleanup_update:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
#endif
mvc __LC_RETURN_PSW+8(8),BASED(cleanup_table_system_call+8)
la %r12,__LC_RETURN_PSW
br %r14
cleanup_system_call_insn:
.quad sysc_saveall
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.quad system_call
.quad sysc_vtime
.quad sysc_stime
.quad sysc_update
#endif
cleanup_sysc_return:
mvc __LC_RETURN_PSW(8),0(%r12)
......@@ -1014,11 +980,9 @@ cleanup_sysc_return:
cleanup_sysc_leave:
clc 8(8,%r12),BASED(cleanup_sysc_leave_insn)
je 2f
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
clc 8(8,%r12),BASED(cleanup_sysc_leave_insn+8)
je 2f
#endif
mvc __LC_RETURN_PSW(16),SP_PSW(%r15)
cghi %r12,__LC_MCK_OLD_PSW
jne 0f
......@@ -1031,9 +995,7 @@ cleanup_sysc_leave:
br %r14
cleanup_sysc_leave_insn:
.quad sysc_done - 4
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.quad sysc_done - 8
#endif
cleanup_io_return:
mvc __LC_RETURN_PSW(8),0(%r12)
......@@ -1044,11 +1006,9 @@ cleanup_io_return:
cleanup_io_leave:
clc 8(8,%r12),BASED(cleanup_io_leave_insn)
je 2f
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
clc 8(8,%r12),BASED(cleanup_io_leave_insn+8)
je 2f
#endif
mvc __LC_RETURN_PSW(16),SP_PSW(%r15)
cghi %r12,__LC_MCK_OLD_PSW
jne 0f
......@@ -1061,9 +1021,7 @@ cleanup_io_leave:
br %r14
cleanup_io_leave_insn:
.quad io_done - 4
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
.quad io_done - 8
#endif
/*
* Integer constants
......
......@@ -441,10 +441,8 @@ int __cpuinit start_secondary(void *cpuvoid)
preempt_disable();
/* Enable TOD clock interrupts on the secondary cpu. */
init_cpu_timer();
#ifdef CONFIG_VIRT_TIMER
/* Enable cpu timer interrupts on the secondary cpu. */
init_cpu_vtimer();
#endif
/* Enable pfault pseudo page faults on this cpu. */
pfault_init();
......
......@@ -286,10 +286,8 @@ void __init time_init(void)
/* Enable TOD clock interrupts on the boot cpu. */
init_cpu_timer();
#ifdef CONFIG_VIRT_TIMER
/* Enable cpu timer interrupts on the boot cpu. */
vtime_init();
#endif
}
/*
......
......@@ -27,7 +27,6 @@
static ext_int_info_t ext_int_info_timer;
static DEFINE_PER_CPU(struct vtimer_queue, virt_cpu_timer);
#ifdef CONFIG_VIRT_CPU_ACCOUNTING