diff options
Diffstat (limited to 'arch/sparc64/kernel/rtrap.S')
| -rw-r--r-- | arch/sparc64/kernel/rtrap.S | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S index 079d18a11d2..ecf6753b204 100644 --- a/arch/sparc64/kernel/rtrap.S +++ b/arch/sparc64/kernel/rtrap.S @@ -18,12 +18,6 @@ #define RTRAP_PSTATE_IRQOFF (PSTATE_RMO|PSTATE_PEF|PSTATE_PRIV) #define RTRAP_PSTATE_AG_IRQOFF (PSTATE_RMO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG) - /* Register %l6 keeps track of whether we are returning - * from a system call or not. It is cleared if we call - * do_notify_resume, and it must not be otherwise modified - * until we fully commit to returning to userspace. - */ - .text .align 32 __handle_softirq: @@ -56,14 +50,12 @@ __handle_user_windows: be,pt %xcc, __handle_user_windows_continue nop mov %l5, %o1 - mov %l6, %o2 add %sp, PTREGS_OFF, %o0 - mov %l0, %o3 + mov %l0, %o2 call do_notify_resume wrpr %g0, RTRAP_PSTATE, %pstate wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - clr %l6 /* Signal delivery can modify pt_regs tstate, so we must * reload it. */ @@ -99,14 +91,12 @@ __handle_perfctrs: be,pt %xcc, __handle_perfctrs_continue sethi %hi(TSTATE_PEF), %o0 mov %l5, %o1 - mov %l6, %o2 add %sp, PTREGS_OFF, %o0 - mov %l0, %o3 + mov %l0, %o2 call do_notify_resume wrpr %g0, RTRAP_PSTATE, %pstate wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - clr %l6 /* Signal delivery can modify pt_regs tstate, so we must * reload it. */ @@ -127,13 +117,11 @@ __handle_userfpu: __handle_signal: mov %l5, %o1 - mov %l6, %o2 add %sp, PTREGS_OFF, %o0 - mov %l0, %o3 + mov %l0, %o2 call do_notify_resume wrpr %g0, RTRAP_PSTATE, %pstate wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - clr %l6 /* Signal delivery can modify pt_regs tstate, so we must * reload it. @@ -145,9 +133,8 @@ __handle_signal: andn %l1, %l4, %l1 .align 64 - .globl rtrap_irq, rtrap_clr_l6, rtrap, irqsz_patchme, rtrap_xcall + .globl rtrap_irq, rtrap, irqsz_patchme, rtrap_xcall rtrap_irq: -rtrap_clr_l6: clr %l6 rtrap: #ifndef CONFIG_SMP sethi %hi(per_cpu____cpu_data), %l0 |