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| author |   Vineet Gupta <vgupta@synopsys.com> | 2013-05-13 18:30:41 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-06-22 14:06:55 +0530 |
| commit | 1f6ccfff6314672743ad7252160654709e997a2a (patch) | |
| tree | f2027c01b8d010b9d1aaa3685c7c4d0644271f53 /arch/arc/kernel/signal.c | |
| parent | ARCv2: [intc] HS38 core interrupt controller (diff) | |
| download | linux-dev-1f6ccfff6314672743ad7252160654709e997a2a.tar.xz linux-dev-1f6ccfff6314672743ad7252160654709e997a2a.zip | |
ARCv2: Support for ARCv2 ISA and HS38x cores
The notable features are:
- SMP configurations of upto 4 cores with coherency
- Optional L2 Cache and IO-Coherency
- Revised Interrupt Architecture (multiple priorites, reg banks,
auto stack switch, auto regfile save/restore)
- MMUv4 (PIPT dcache, Huge Pages)
- Instructions for
* 64bit load/store: LDD, STD
* Hardware assisted divide/remainder: DIV, REM
* Function prologue/epilogue: ENTER_S, LEAVE_S
* IRQ enable/disable: CLRI, SETI
* pop count: FFS, FLS
* SETcc, BMSKN, XBFU...
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel/signal.c')
| -rw-r--r-- | arch/arc/kernel/signal.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c index b15d2fe9c461..004b7f0bc76c 100644 --- a/arch/arc/kernel/signal.c +++ b/arch/arc/kernel/signal.c @@ -336,7 +336,7 @@ static void arc_restart_syscall(struct k_sigaction *ka, struct pt_regs *regs) * their orig user space value when we ret from kernel */ regs->r0 = regs->orig_r0; - regs->ret -= 4; + regs->ret -= is_isa_arcv2() ? 2 : 4; break; } } @@ -377,10 +377,10 @@ void do_signal(struct pt_regs *regs) if (regs->r0 == -ERESTARTNOHAND || regs->r0 == -ERESTARTSYS || regs->r0 == -ERESTARTNOINTR) { regs->r0 = regs->orig_r0; - regs->ret -= 4; + regs->ret -= is_isa_arcv2() ? 2 : 4; } else if (regs->r0 == -ERESTART_RESTARTBLOCK) { regs->r8 = __NR_restart_syscall; - regs->ret -= 4; + regs->ret -= is_isa_arcv2() ? 2 : 4; } syscall_wont_restart(regs); /* No more restarts */ } |