sparc64: Kill off old sys_perfctr system call and state.
People should be using the perf events interfaces, and the way these system call facilities used the %pcr conflicts with the usage of the NMI watchdog and perf events. Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
6c5ae5b278
commit
c7d5a00507
|
@ -10,8 +10,8 @@
|
||||||
* from enumeration below. The meaning of further arguments
|
* from enumeration below. The meaning of further arguments
|
||||||
* are determined by the operation code.
|
* are determined by the operation code.
|
||||||
*
|
*
|
||||||
* int sys_perfctr(int opcode, unsigned long arg0,
|
* NOTE: This system call is no longer provided, use the perf_events
|
||||||
* unsigned long arg1, unsigned long arg2)
|
* infrastructure.
|
||||||
*
|
*
|
||||||
* Pointers which are passed by the user are pointers to 64-bit
|
* Pointers which are passed by the user are pointers to 64-bit
|
||||||
* integers.
|
* integers.
|
||||||
|
|
|
@ -143,15 +143,7 @@ do { \
|
||||||
* and 2 stores in this critical code path. -DaveM
|
* and 2 stores in this critical code path. -DaveM
|
||||||
*/
|
*/
|
||||||
#define switch_to(prev, next, last) \
|
#define switch_to(prev, next, last) \
|
||||||
do { if (test_thread_flag(TIF_PERFCTR)) { \
|
do { flush_tlb_pending(); \
|
||||||
unsigned long __tmp; \
|
|
||||||
read_pcr(__tmp); \
|
|
||||||
current_thread_info()->pcr_reg = __tmp; \
|
|
||||||
read_pic(__tmp); \
|
|
||||||
current_thread_info()->kernel_cntd0 += (unsigned int)(__tmp);\
|
|
||||||
current_thread_info()->kernel_cntd1 += ((__tmp) >> 32); \
|
|
||||||
} \
|
|
||||||
flush_tlb_pending(); \
|
|
||||||
save_and_clear_fpu(); \
|
save_and_clear_fpu(); \
|
||||||
/* If you are tempted to conditionalize the following */ \
|
/* If you are tempted to conditionalize the following */ \
|
||||||
/* so that ASI is only written if it changes, think again. */ \
|
/* so that ASI is only written if it changes, think again. */ \
|
||||||
|
@ -197,11 +189,6 @@ do { if (test_thread_flag(TIF_PERFCTR)) { \
|
||||||
"l1", "l2", "l3", "l4", "l5", "l6", "l7", \
|
"l1", "l2", "l3", "l4", "l5", "l6", "l7", \
|
||||||
"i0", "i1", "i2", "i3", "i4", "i5", \
|
"i0", "i1", "i2", "i3", "i4", "i5", \
|
||||||
"o0", "o1", "o2", "o3", "o4", "o5", "o7"); \
|
"o0", "o1", "o2", "o3", "o4", "o5", "o7"); \
|
||||||
/* If you fuck with this, update ret_from_syscall code too. */ \
|
|
||||||
if (test_thread_flag(TIF_PERFCTR)) { \
|
|
||||||
write_pcr(current_thread_info()->pcr_reg); \
|
|
||||||
reset_pic(); \
|
|
||||||
} \
|
|
||||||
} while(0)
|
} while(0)
|
||||||
|
|
||||||
static inline unsigned long xchg32(__volatile__ unsigned int *m, unsigned int val)
|
static inline unsigned long xchg32(__volatile__ unsigned int *m, unsigned int val)
|
||||||
|
|
|
@ -58,11 +58,6 @@ struct thread_info {
|
||||||
unsigned long gsr[7];
|
unsigned long gsr[7];
|
||||||
unsigned long xfsr[7];
|
unsigned long xfsr[7];
|
||||||
|
|
||||||
__u64 __user *user_cntd0;
|
|
||||||
__u64 __user *user_cntd1;
|
|
||||||
__u64 kernel_cntd0, kernel_cntd1;
|
|
||||||
__u64 pcr_reg;
|
|
||||||
|
|
||||||
struct restart_block restart_block;
|
struct restart_block restart_block;
|
||||||
|
|
||||||
struct pt_regs *kern_una_regs;
|
struct pt_regs *kern_una_regs;
|
||||||
|
@ -96,15 +91,10 @@ struct thread_info {
|
||||||
#define TI_RWIN_SPTRS 0x000003c8
|
#define TI_RWIN_SPTRS 0x000003c8
|
||||||
#define TI_GSR 0x00000400
|
#define TI_GSR 0x00000400
|
||||||
#define TI_XFSR 0x00000438
|
#define TI_XFSR 0x00000438
|
||||||
#define TI_USER_CNTD0 0x00000470
|
#define TI_RESTART_BLOCK 0x00000470
|
||||||
#define TI_USER_CNTD1 0x00000478
|
#define TI_KUNA_REGS 0x000004a0
|
||||||
#define TI_KERN_CNTD0 0x00000480
|
#define TI_KUNA_INSN 0x000004a8
|
||||||
#define TI_KERN_CNTD1 0x00000488
|
#define TI_FPREGS 0x000004c0
|
||||||
#define TI_PCR 0x00000490
|
|
||||||
#define TI_RESTART_BLOCK 0x00000498
|
|
||||||
#define TI_KUNA_REGS 0x000004c8
|
|
||||||
#define TI_KUNA_INSN 0x000004d0
|
|
||||||
#define TI_FPREGS 0x00000500
|
|
||||||
|
|
||||||
/* We embed this in the uppermost byte of thread_info->flags */
|
/* We embed this in the uppermost byte of thread_info->flags */
|
||||||
#define FAULT_CODE_WRITE 0x01 /* Write access, implies D-TLB */
|
#define FAULT_CODE_WRITE 0x01 /* Write access, implies D-TLB */
|
||||||
|
@ -199,7 +189,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
|
||||||
*
|
*
|
||||||
* On trap return we need to test several values:
|
* On trap return we need to test several values:
|
||||||
*
|
*
|
||||||
* user: need_resched, notify_resume, sigpending, wsaved, perfctr
|
* user: need_resched, notify_resume, sigpending, wsaved
|
||||||
* kernel: fpdepth
|
* kernel: fpdepth
|
||||||
*
|
*
|
||||||
* So to check for work in the kernel case we simply load the fpdepth
|
* So to check for work in the kernel case we simply load the fpdepth
|
||||||
|
@ -220,7 +210,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
|
||||||
#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
|
#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
|
||||||
#define TIF_SIGPENDING 2 /* signal pending */
|
#define TIF_SIGPENDING 2 /* signal pending */
|
||||||
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
|
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
|
||||||
#define TIF_PERFCTR 4 /* performance counters active */
|
/* flag bit 4 is available */
|
||||||
#define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */
|
#define TIF_UNALIGNED 5 /* allowed to do unaligned accesses */
|
||||||
/* flag bit 6 is available */
|
/* flag bit 6 is available */
|
||||||
#define TIF_32BIT 7 /* 32-bit binary */
|
#define TIF_32BIT 7 /* 32-bit binary */
|
||||||
|
@ -241,7 +231,6 @@ register struct thread_info *current_thread_info_reg asm("g6");
|
||||||
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
|
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
|
||||||
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
|
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
|
||||||
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
|
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
|
||||||
#define _TIF_PERFCTR (1<<TIF_PERFCTR)
|
|
||||||
#define _TIF_UNALIGNED (1<<TIF_UNALIGNED)
|
#define _TIF_UNALIGNED (1<<TIF_UNALIGNED)
|
||||||
#define _TIF_32BIT (1<<TIF_32BIT)
|
#define _TIF_32BIT (1<<TIF_32BIT)
|
||||||
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
|
#define _TIF_SECCOMP (1<<TIF_SECCOMP)
|
||||||
|
@ -252,7 +241,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
|
||||||
|
|
||||||
#define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \
|
#define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \
|
||||||
_TIF_DO_NOTIFY_RESUME_MASK | \
|
_TIF_DO_NOTIFY_RESUME_MASK | \
|
||||||
_TIF_NEED_RESCHED | _TIF_PERFCTR)
|
_TIF_NEED_RESCHED)
|
||||||
#define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
|
#define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
|
|
@ -48,7 +48,6 @@ extern void __init boot_cpu_id_too_large(int cpu);
|
||||||
extern unsigned int dcache_parity_tl1_occurred;
|
extern unsigned int dcache_parity_tl1_occurred;
|
||||||
extern unsigned int icache_parity_tl1_occurred;
|
extern unsigned int icache_parity_tl1_occurred;
|
||||||
|
|
||||||
extern asmlinkage void update_perfctrs(void);
|
|
||||||
extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
|
extern asmlinkage void sparc_breakpoint(struct pt_regs *regs);
|
||||||
extern void timer_interrupt(int irq, struct pt_regs *regs);
|
extern void timer_interrupt(int irq, struct pt_regs *regs);
|
||||||
|
|
||||||
|
|
|
@ -352,12 +352,6 @@ void exit_thread(void)
|
||||||
else
|
else
|
||||||
t->utraps[0]--;
|
t->utraps[0]--;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (test_and_clear_thread_flag(TIF_PERFCTR)) {
|
|
||||||
t->user_cntd0 = t->user_cntd1 = NULL;
|
|
||||||
t->pcr_reg = 0;
|
|
||||||
write_pcr(0);
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
void flush_thread(void)
|
void flush_thread(void)
|
||||||
|
@ -371,13 +365,6 @@ void flush_thread(void)
|
||||||
|
|
||||||
set_thread_wsaved(0);
|
set_thread_wsaved(0);
|
||||||
|
|
||||||
/* Turn off performance counters if on. */
|
|
||||||
if (test_and_clear_thread_flag(TIF_PERFCTR)) {
|
|
||||||
t->user_cntd0 = t->user_cntd1 = NULL;
|
|
||||||
t->pcr_reg = 0;
|
|
||||||
write_pcr(0);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Clear FPU register state. */
|
/* Clear FPU register state. */
|
||||||
t->fpsaved[0] = 0;
|
t->fpsaved[0] = 0;
|
||||||
|
|
||||||
|
@ -591,16 +578,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
|
||||||
t->kregs->u_regs[UREG_FP] =
|
t->kregs->u_regs[UREG_FP] =
|
||||||
((unsigned long) child_sf) - STACK_BIAS;
|
((unsigned long) child_sf) - STACK_BIAS;
|
||||||
|
|
||||||
/* Special case, if we are spawning a kernel thread from
|
|
||||||
* a userspace task (usermode helper, NFS or similar), we
|
|
||||||
* must disable performance counters in the child because
|
|
||||||
* the address space and protection realm are changing.
|
|
||||||
*/
|
|
||||||
if (t->flags & _TIF_PERFCTR) {
|
|
||||||
t->user_cntd0 = t->user_cntd1 = NULL;
|
|
||||||
t->pcr_reg = 0;
|
|
||||||
t->flags &= ~_TIF_PERFCTR;
|
|
||||||
}
|
|
||||||
t->flags |= ((long)ASI_P << TI_FLAG_CURRENT_DS_SHIFT);
|
t->flags |= ((long)ASI_P << TI_FLAG_CURRENT_DS_SHIFT);
|
||||||
t->kregs->u_regs[UREG_G6] = (unsigned long) t;
|
t->kregs->u_regs[UREG_G6] = (unsigned long) t;
|
||||||
t->kregs->u_regs[UREG_G4] = (unsigned long) t->task;
|
t->kregs->u_regs[UREG_G4] = (unsigned long) t->task;
|
||||||
|
|
|
@ -65,48 +65,6 @@ __handle_user_windows:
|
||||||
ba,pt %xcc, __handle_user_windows_continue
|
ba,pt %xcc, __handle_user_windows_continue
|
||||||
|
|
||||||
andn %l1, %l4, %l1
|
andn %l1, %l4, %l1
|
||||||
__handle_perfctrs:
|
|
||||||
call update_perfctrs
|
|
||||||
wrpr %g0, RTRAP_PSTATE, %pstate
|
|
||||||
wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate
|
|
||||||
ldub [%g6 + TI_WSAVED], %o2
|
|
||||||
brz,pt %o2, 1f
|
|
||||||
nop
|
|
||||||
/* Redo userwin+sched+sig checks */
|
|
||||||
call fault_in_user_windows
|
|
||||||
|
|
||||||
wrpr %g0, RTRAP_PSTATE, %pstate
|
|
||||||
wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate
|
|
||||||
ldx [%g6 + TI_FLAGS], %l0
|
|
||||||
andcc %l0, _TIF_NEED_RESCHED, %g0
|
|
||||||
be,pt %xcc, 1f
|
|
||||||
|
|
||||||
nop
|
|
||||||
call schedule
|
|
||||||
wrpr %g0, RTRAP_PSTATE, %pstate
|
|
||||||
wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate
|
|
||||||
ldx [%g6 + TI_FLAGS], %l0
|
|
||||||
1: andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0
|
|
||||||
|
|
||||||
be,pt %xcc, __handle_perfctrs_continue
|
|
||||||
sethi %hi(TSTATE_PEF), %o0
|
|
||||||
mov %l5, %o1
|
|
||||||
add %sp, PTREGS_OFF, %o0
|
|
||||||
mov %l0, %o2
|
|
||||||
call do_notify_resume
|
|
||||||
|
|
||||||
wrpr %g0, RTRAP_PSTATE, %pstate
|
|
||||||
wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate
|
|
||||||
/* Signal delivery can modify pt_regs tstate, so we must
|
|
||||||
* reload it.
|
|
||||||
*/
|
|
||||||
ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
|
|
||||||
sethi %hi(0xf << 20), %l4
|
|
||||||
and %l1, %l4, %l4
|
|
||||||
andn %l1, %l4, %l1
|
|
||||||
ba,pt %xcc, __handle_perfctrs_continue
|
|
||||||
|
|
||||||
sethi %hi(TSTATE_PEF), %o0
|
|
||||||
__handle_userfpu:
|
__handle_userfpu:
|
||||||
rd %fprs, %l5
|
rd %fprs, %l5
|
||||||
andcc %l5, FPRS_FEF, %g0
|
andcc %l5, FPRS_FEF, %g0
|
||||||
|
@ -191,9 +149,9 @@ rtrap_no_irq_enable:
|
||||||
* take until the next local IRQ before the signal/resched
|
* take until the next local IRQ before the signal/resched
|
||||||
* event would be handled.
|
* event would be handled.
|
||||||
*
|
*
|
||||||
* This also means that if we have to deal with performance
|
* This also means that if we have to deal with user
|
||||||
* counters or user windows, we have to redo all of these
|
* windows, we have to redo all of these sched+signal checks
|
||||||
* sched+signal checks with IRQs disabled.
|
* with IRQs disabled.
|
||||||
*/
|
*/
|
||||||
to_user: wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate
|
to_user: wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate
|
||||||
wrpr 0, %pil
|
wrpr 0, %pil
|
||||||
|
@ -214,12 +172,8 @@ __handle_signal_continue:
|
||||||
brnz,pn %o2, __handle_user_windows
|
brnz,pn %o2, __handle_user_windows
|
||||||
nop
|
nop
|
||||||
__handle_user_windows_continue:
|
__handle_user_windows_continue:
|
||||||
ldx [%g6 + TI_FLAGS], %l5
|
|
||||||
andcc %l5, _TIF_PERFCTR, %g0
|
|
||||||
sethi %hi(TSTATE_PEF), %o0
|
sethi %hi(TSTATE_PEF), %o0
|
||||||
bne,pn %xcc, __handle_perfctrs
|
andcc %l1, %o0, %g0
|
||||||
__handle_perfctrs_continue:
|
|
||||||
andcc %l1, %o0, %g0
|
|
||||||
|
|
||||||
/* This fpdepth clear is necessary for non-syscall rtraps only */
|
/* This fpdepth clear is necessary for non-syscall rtraps only */
|
||||||
user_nowork:
|
user_nowork:
|
||||||
|
|
|
@ -51,7 +51,6 @@ SIGN1(sys32_exit_group, sys_exit_group, %o0)
|
||||||
SIGN1(sys32_wait4, compat_sys_wait4, %o2)
|
SIGN1(sys32_wait4, compat_sys_wait4, %o2)
|
||||||
SIGN1(sys32_creat, sys_creat, %o1)
|
SIGN1(sys32_creat, sys_creat, %o1)
|
||||||
SIGN1(sys32_mknod, sys_mknod, %o1)
|
SIGN1(sys32_mknod, sys_mknod, %o1)
|
||||||
SIGN1(sys32_perfctr, sys_perfctr, %o0)
|
|
||||||
SIGN1(sys32_umount, sys_umount, %o1)
|
SIGN1(sys32_umount, sys_umount, %o1)
|
||||||
SIGN1(sys32_signal, sys_signal, %o0)
|
SIGN1(sys32_signal, sys_signal, %o0)
|
||||||
SIGN1(sys32_access, sys_access, %o1)
|
SIGN1(sys32_access, sys_access, %o1)
|
||||||
|
|
|
@ -27,7 +27,6 @@
|
||||||
|
|
||||||
#include <asm/uaccess.h>
|
#include <asm/uaccess.h>
|
||||||
#include <asm/utrap.h>
|
#include <asm/utrap.h>
|
||||||
#include <asm/perfctr.h>
|
|
||||||
#include <asm/unistd.h>
|
#include <asm/unistd.h>
|
||||||
|
|
||||||
#include "entry.h"
|
#include "entry.h"
|
||||||
|
@ -766,109 +765,6 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Invoked by rtrap code to update performance counters in
|
|
||||||
* user space.
|
|
||||||
*/
|
|
||||||
asmlinkage void update_perfctrs(void)
|
|
||||||
{
|
|
||||||
unsigned long pic, tmp;
|
|
||||||
|
|
||||||
read_pic(pic);
|
|
||||||
tmp = (current_thread_info()->kernel_cntd0 += (unsigned int)pic);
|
|
||||||
__put_user(tmp, current_thread_info()->user_cntd0);
|
|
||||||
tmp = (current_thread_info()->kernel_cntd1 += (pic >> 32));
|
|
||||||
__put_user(tmp, current_thread_info()->user_cntd1);
|
|
||||||
reset_pic();
|
|
||||||
}
|
|
||||||
|
|
||||||
SYSCALL_DEFINE4(perfctr, int, opcode, unsigned long, arg0,
|
|
||||||
unsigned long, arg1, unsigned long, arg2)
|
|
||||||
{
|
|
||||||
int err = 0;
|
|
||||||
|
|
||||||
switch(opcode) {
|
|
||||||
case PERFCTR_ON:
|
|
||||||
current_thread_info()->pcr_reg = arg2;
|
|
||||||
current_thread_info()->user_cntd0 = (u64 __user *) arg0;
|
|
||||||
current_thread_info()->user_cntd1 = (u64 __user *) arg1;
|
|
||||||
current_thread_info()->kernel_cntd0 =
|
|
||||||
current_thread_info()->kernel_cntd1 = 0;
|
|
||||||
write_pcr(arg2);
|
|
||||||
reset_pic();
|
|
||||||
set_thread_flag(TIF_PERFCTR);
|
|
||||||
break;
|
|
||||||
|
|
||||||
case PERFCTR_OFF:
|
|
||||||
err = -EINVAL;
|
|
||||||
if (test_thread_flag(TIF_PERFCTR)) {
|
|
||||||
current_thread_info()->user_cntd0 =
|
|
||||||
current_thread_info()->user_cntd1 = NULL;
|
|
||||||
current_thread_info()->pcr_reg = 0;
|
|
||||||
write_pcr(0);
|
|
||||||
clear_thread_flag(TIF_PERFCTR);
|
|
||||||
err = 0;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
case PERFCTR_READ: {
|
|
||||||
unsigned long pic, tmp;
|
|
||||||
|
|
||||||
if (!test_thread_flag(TIF_PERFCTR)) {
|
|
||||||
err = -EINVAL;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
read_pic(pic);
|
|
||||||
tmp = (current_thread_info()->kernel_cntd0 += (unsigned int)pic);
|
|
||||||
err |= __put_user(tmp, current_thread_info()->user_cntd0);
|
|
||||||
tmp = (current_thread_info()->kernel_cntd1 += (pic >> 32));
|
|
||||||
err |= __put_user(tmp, current_thread_info()->user_cntd1);
|
|
||||||
reset_pic();
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
case PERFCTR_CLRPIC:
|
|
||||||
if (!test_thread_flag(TIF_PERFCTR)) {
|
|
||||||
err = -EINVAL;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
current_thread_info()->kernel_cntd0 =
|
|
||||||
current_thread_info()->kernel_cntd1 = 0;
|
|
||||||
reset_pic();
|
|
||||||
break;
|
|
||||||
|
|
||||||
case PERFCTR_SETPCR: {
|
|
||||||
u64 __user *user_pcr = (u64 __user *)arg0;
|
|
||||||
|
|
||||||
if (!test_thread_flag(TIF_PERFCTR)) {
|
|
||||||
err = -EINVAL;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
err |= __get_user(current_thread_info()->pcr_reg, user_pcr);
|
|
||||||
write_pcr(current_thread_info()->pcr_reg);
|
|
||||||
current_thread_info()->kernel_cntd0 =
|
|
||||||
current_thread_info()->kernel_cntd1 = 0;
|
|
||||||
reset_pic();
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
case PERFCTR_GETPCR: {
|
|
||||||
u64 __user *user_pcr = (u64 __user *)arg0;
|
|
||||||
|
|
||||||
if (!test_thread_flag(TIF_PERFCTR)) {
|
|
||||||
err = -EINVAL;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
err |= __put_user(current_thread_info()->pcr_reg, user_pcr);
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
default:
|
|
||||||
err = -EINVAL;
|
|
||||||
break;
|
|
||||||
};
|
|
||||||
return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Do a system call from kernel instead of calling sys_execve so we
|
* Do a system call from kernel instead of calling sys_execve so we
|
||||||
* end up with proper pt_regs.
|
* end up with proper pt_regs.
|
||||||
|
|
|
@ -110,31 +110,12 @@ sys_clone:
|
||||||
|
|
||||||
.globl ret_from_syscall
|
.globl ret_from_syscall
|
||||||
ret_from_syscall:
|
ret_from_syscall:
|
||||||
/* Clear current_thread_info()->new_child, and
|
/* Clear current_thread_info()->new_child. */
|
||||||
* check performance counter stuff too.
|
|
||||||
*/
|
|
||||||
stb %g0, [%g6 + TI_NEW_CHILD]
|
stb %g0, [%g6 + TI_NEW_CHILD]
|
||||||
ldx [%g6 + TI_FLAGS], %l0
|
ldx [%g6 + TI_FLAGS], %l0
|
||||||
call schedule_tail
|
call schedule_tail
|
||||||
mov %g7, %o0
|
mov %g7, %o0
|
||||||
andcc %l0, _TIF_PERFCTR, %g0
|
ba,pt %xcc, ret_sys_call
|
||||||
be,pt %icc, 1f
|
|
||||||
nop
|
|
||||||
ldx [%g6 + TI_PCR], %o7
|
|
||||||
wr %g0, %o7, %pcr
|
|
||||||
|
|
||||||
/* Blackbird errata workaround. See commentary in
|
|
||||||
* smp.c:smp_percpu_timer_interrupt() for more
|
|
||||||
* information.
|
|
||||||
*/
|
|
||||||
ba,pt %xcc, 99f
|
|
||||||
nop
|
|
||||||
|
|
||||||
.align 64
|
|
||||||
99: wr %g0, %g0, %pic
|
|
||||||
rd %pic, %g0
|
|
||||||
|
|
||||||
1: ba,pt %xcc, ret_sys_call
|
|
||||||
ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0
|
ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0
|
||||||
|
|
||||||
.globl sparc_exit
|
.globl sparc_exit
|
||||||
|
|
|
@ -36,8 +36,6 @@ extern asmlinkage long sys_rt_sigaction(int sig,
|
||||||
struct sigaction __user *oact,
|
struct sigaction __user *oact,
|
||||||
void __user *restorer,
|
void __user *restorer,
|
||||||
size_t sigsetsize);
|
size_t sigsetsize);
|
||||||
extern asmlinkage long sys_perfctr(int opcode, unsigned long arg0,
|
|
||||||
unsigned long arg1, unsigned long arg2);
|
|
||||||
|
|
||||||
extern asmlinkage void sparc64_set_context(struct pt_regs *regs);
|
extern asmlinkage void sparc64_set_context(struct pt_regs *regs);
|
||||||
extern asmlinkage void sparc64_get_context(struct pt_regs *regs);
|
extern asmlinkage void sparc64_get_context(struct pt_regs *regs);
|
||||||
|
|
|
@ -21,7 +21,7 @@ sys_call_table32:
|
||||||
/*0*/ .word sys_restart_syscall, sys32_exit, sys_fork, sys_read, sys_write
|
/*0*/ .word sys_restart_syscall, sys32_exit, sys_fork, sys_read, sys_write
|
||||||
/*5*/ .word sys32_open, sys_close, sys32_wait4, sys32_creat, sys_link
|
/*5*/ .word sys32_open, sys_close, sys32_wait4, sys32_creat, sys_link
|
||||||
/*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys32_mknod
|
/*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys32_mknod
|
||||||
/*15*/ .word sys_chmod, sys_lchown16, sys_brk, sys32_perfctr, sys32_lseek
|
/*15*/ .word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, sys32_lseek
|
||||||
/*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
|
/*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16
|
||||||
/*25*/ .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys_pause
|
/*25*/ .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys_pause
|
||||||
/*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice
|
/*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice
|
||||||
|
@ -96,7 +96,7 @@ sys_call_table:
|
||||||
/*0*/ .word sys_restart_syscall, sparc_exit, sys_fork, sys_read, sys_write
|
/*0*/ .word sys_restart_syscall, sparc_exit, sys_fork, sys_read, sys_write
|
||||||
/*5*/ .word sys_open, sys_close, sys_wait4, sys_creat, sys_link
|
/*5*/ .word sys_open, sys_close, sys_wait4, sys_creat, sys_link
|
||||||
/*10*/ .word sys_unlink, sys_nis_syscall, sys_chdir, sys_chown, sys_mknod
|
/*10*/ .word sys_unlink, sys_nis_syscall, sys_chdir, sys_chown, sys_mknod
|
||||||
/*15*/ .word sys_chmod, sys_lchown, sys_brk, sys_perfctr, sys_lseek
|
/*15*/ .word sys_chmod, sys_lchown, sys_brk, sys_nis_syscall, sys_lseek
|
||||||
/*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid, sys_getuid
|
/*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid, sys_getuid
|
||||||
/*25*/ .word sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_nis_syscall
|
/*25*/ .word sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_nis_syscall
|
||||||
/*30*/ .word sys_utime, sys_nis_syscall, sys_nis_syscall, sys_access, sys_nice
|
/*30*/ .word sys_utime, sys_nis_syscall, sys_nis_syscall, sys_access, sys_nice
|
||||||
|
|
|
@ -2548,15 +2548,6 @@ void __init trap_init(void)
|
||||||
rwbuf_stkptrs) ||
|
rwbuf_stkptrs) ||
|
||||||
TI_GSR != offsetof(struct thread_info, gsr) ||
|
TI_GSR != offsetof(struct thread_info, gsr) ||
|
||||||
TI_XFSR != offsetof(struct thread_info, xfsr) ||
|
TI_XFSR != offsetof(struct thread_info, xfsr) ||
|
||||||
TI_USER_CNTD0 != offsetof(struct thread_info,
|
|
||||||
user_cntd0) ||
|
|
||||||
TI_USER_CNTD1 != offsetof(struct thread_info,
|
|
||||||
user_cntd1) ||
|
|
||||||
TI_KERN_CNTD0 != offsetof(struct thread_info,
|
|
||||||
kernel_cntd0) ||
|
|
||||||
TI_KERN_CNTD1 != offsetof(struct thread_info,
|
|
||||||
kernel_cntd1) ||
|
|
||||||
TI_PCR != offsetof(struct thread_info, pcr_reg) ||
|
|
||||||
TI_PRE_COUNT != offsetof(struct thread_info,
|
TI_PRE_COUNT != offsetof(struct thread_info,
|
||||||
preempt_count) ||
|
preempt_count) ||
|
||||||
TI_NEW_CHILD != offsetof(struct thread_info, new_child) ||
|
TI_NEW_CHILD != offsetof(struct thread_info, new_child) ||
|
||||||
|
|
Loading…
Reference in New Issue