}
wh64 r52
-#ifdef CONFIG_TRACE_IRQFLAGS
+#if defined(CONFIG_TRACE_IRQFLAGS) || defined(CONFIG_CONTEXT_TRACKING)
.ifnc \function,handle_nmi
/*
* We finally have enough state set up to notify the irq
{ move r32, r2; move r33, r3 }
.endif
TRACE_IRQS_OFF
+#ifdef CONFIG_CONTEXT_TRACKING
+ jal context_tracking_user_exit
+#endif
.ifnc \function,handle_syscall
{ move r0, r30; move r1, r31 }
{ move r2, r32; move r3, r33 }
}
wh64 r52
-#ifdef CONFIG_TRACE_IRQFLAGS
+#if defined(CONFIG_TRACE_IRQFLAGS) || defined(CONFIG_CONTEXT_TRACKING)
.ifnc \function,handle_nmi
/*
* We finally have enough state set up to notify the irq
{ move r32, r2; move r33, r3 }
.endif
TRACE_IRQS_OFF
+#ifdef CONFIG_CONTEXT_TRACKING
+ jal context_tracking_user_exit
+#endif
.ifnc \function,handle_syscall
{ move r0, r30; move r1, r31 }
{ move r2, r32; move r3, r33 }
{
u32 work = ACCESS_ONCE(current_thread_info()->flags);
- /*
- * If TIF_NOHZ is set, we are required to call user_exit() before
- * doing anything that could touch RCU.
- */
- if (work & _TIF_NOHZ)
- user_exit();
-
if (secure_computing() == -1)
return -1;
long errno;
/*
- * We may come here right after calling schedule_user()
- * in which case we can be in RCU user mode.
- */
- user_exit();
-
- /*
* The standard tile calling convention returns the value (or negative
* errno) in r0, and zero (or positive errno) in r1.
* It saves a couple of cycles on the hot path to do this work in
/* Handle synthetic interrupt delivered only by the simulator. */
void __kprobes do_breakpoint(struct pt_regs* regs, int fault_num)
{
- enum ctx_state prev_state = exception_enter();
send_sigtrap(current, regs);
- exception_exit(prev_state);
}
#include <linux/types.h>
#include <linux/err.h>
#include <linux/prctl.h>
-#include <linux/context_tracking.h>
#include <asm/cacheflush.h>
#include <asm/traps.h>
#include <asm/uaccess.h>
void gx_singlestep_handle(struct pt_regs *regs, int fault_num)
{
- enum ctx_state prev_state = exception_enter();
unsigned long *ss_pc = this_cpu_ptr(&ss_saved_pc);
struct thread_info *info = (void *)current_thread_info();
int is_single_step = test_ti_thread_flag(info, TIF_SINGLESTEP);
__insn_mtspr(SPR_SINGLE_STEP_CONTROL_K, control);
send_sigtrap(current, regs);
}
- exception_exit(prev_state);
}
#include <linux/reboot.h>
#include <linux/uaccess.h>
#include <linux/ptrace.h>
-#include <linux/context_tracking.h>
#include <asm/stack.h>
#include <asm/traps.h>
#include <asm/setup.h>
void __kprobes do_trap(struct pt_regs *regs, int fault_num,
unsigned long reason)
{
- enum ctx_state prev_state = exception_enter();
siginfo_t info = { 0 };
int signo, code;
unsigned long address = 0;
/* Handle breakpoints, etc. */
if (is_kernel && fault_num == INT_ILL && do_bpt(regs))
- goto done;
+ return;
/* Re-enable interrupts, if they were previously enabled. */
if (!(regs->flags & PT_FLAGS_DISABLE_IRQ))
const char *name;
char buf[100];
if (fixup_exception(regs)) /* ILL_TRANS or UNALIGN_DATA */
- goto done;
+ return;
if (fault_num >= 0 &&
fault_num < ARRAY_SIZE(int_name) &&
int_name[fault_num] != NULL)
case INT_GPV:
#if CHIP_HAS_TILE_DMA()
if (retry_gpv(reason))
- goto done;
+ return;
#endif
/*FALLTHROUGH*/
case INT_UDN_ACCESS:
if (!state ||
(void __user *)(regs->pc) != state->buffer) {
single_step_once(regs);
- goto done;
+ return;
}
}
#endif
if (signo != SIGTRAP)
trace_unhandled_signal("trap", regs, address, signo);
force_sig_info(signo, &info, current);
-
-done:
- exception_exit(prev_state);
}
void do_nmi(struct pt_regs *regs, int fault_num, unsigned long reason)
#include <linux/module.h>
#include <linux/compat.h>
#include <linux/prctl.h>
-#include <linux/context_tracking.h>
#include <asm/cacheflush.h>
#include <asm/traps.h>
#include <asm/uaccess.h>
void do_unaligned(struct pt_regs *regs, int vecnum)
{
- enum ctx_state prev_state = exception_enter();
tilegx_bundle_bits __user *pc;
tilegx_bundle_bits bundle;
struct thread_info *info = current_thread_info();
*((tilegx_bundle_bits *)(regs->pc)));
jit_bundle_gen(regs, bundle, align_ctl);
}
- goto done;
+ return;
}
/*
trace_unhandled_signal("unaligned fixup trap", regs, 0, SIGBUS);
force_sig_info(info.si_signo, &info, current);
- goto done;
+ return;
}
trace_unhandled_signal("segfault in unalign fixup", regs,
(unsigned long)info.si_addr, SIGSEGV);
force_sig_info(info.si_signo, &info, current);
- goto done;
+ return;
}
if (!info->unalign_jit_base) {
if (IS_ERR((void __force *)user_page)) {
pr_err("Out of kernel pages trying do_mmap\n");
- goto done;
+ return;
}
/* Save the address in the thread_info struct */
/* Generate unalign JIT */
jit_bundle_gen(regs, GX_INSN_BSWAP(bundle), align_ctl);
-
-done:
- exception_exit(prev_state);
}
#endif /* __tilegx__ */
#include <linux/syscalls.h>
#include <linux/uaccess.h>
#include <linux/kdebug.h>
-#include <linux/context_tracking.h>
#include <asm/pgalloc.h>
#include <asm/sections.h>
void do_page_fault(struct pt_regs *regs, int fault_num,
unsigned long address, unsigned long write)
{
- enum ctx_state prev_state = exception_enter();
__do_page_fault(regs, fault_num, address, write);
- exception_exit(prev_state);
}
#if CHIP_HAS_TILE_DMA()