diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-29 08:03:48 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-29 08:03:48 -0700 |
commit | c07724e5b868c603f2a65f3855c77b23454db3ed (patch) | |
tree | 658b1f0af5966e418f48a53e8b2f97e10b250f4f /arch/sparc/kernel | |
parent | 302f5bc54448bd2b37d5a8be9b6abc29397827ef (diff) | |
parent | e69f58c037ab5b166b3858fa7b5d7fa470613e8f (diff) | |
download | linux-c07724e5b868c603f2a65f3855c77b23454db3ed.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
kbuild: add ARCH=sparc32 target
sparc32: fix build failure on CONFIG_SPARC_LEON
sparc: Fixed random SPARC/LEON SMP CPU Stuck problem.
sparc32: remove CONFIG_HAVE_PERF_EVENTS option
sparc: don't #include asm/system.h in asm/jump_label.h
sparc32: Fix unaligned stack handling on trap return.
sparc: keep calling do_signal() as long as pending signals remain
Diffstat (limited to 'arch/sparc/kernel')
-rw-r--r-- | arch/sparc/kernel/irq_32.c | 4 | ||||
-rw-r--r-- | arch/sparc/kernel/leon_smp.c | 4 | ||||
-rw-r--r-- | arch/sparc/kernel/rtrap_32.S | 6 | ||||
-rw-r--r-- | arch/sparc/kernel/rtrap_64.S | 36 |
4 files changed, 10 insertions, 40 deletions
diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c index 0116d8d10def..5ad6e5c5dbb3 100644 --- a/arch/sparc/kernel/irq_32.c +++ b/arch/sparc/kernel/irq_32.c @@ -365,7 +365,7 @@ static int request_fast_irq(unsigned int irq, unsigned long flags; unsigned int cpu_irq; int ret; -#ifdef CONFIG_SMP +#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON struct tt_entry *trap_table; extern struct tt_entry trapbase_cpu1, trapbase_cpu2, trapbase_cpu3; #endif @@ -425,7 +425,7 @@ static int request_fast_irq(unsigned int irq, table[SP_TRAP_IRQ1+(cpu_irq-1)].inst_four = SPARC_NOP; INSTANTIATE(sparc_ttable) -#ifdef CONFIG_SMP +#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON trap_table = &trapbase_cpu1; INSTANTIATE(trap_table) trap_table = &trapbase_cpu2; INSTANTIATE(trap_table) trap_table = &trapbase_cpu3; INSTANTIATE(trap_table) diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index e1656fc41ccb..7524689b03d2 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -56,8 +56,8 @@ void __init leon_configure_cache_smp(void); static inline unsigned long do_swap(volatile unsigned long *ptr, unsigned long val) { - __asm__ __volatile__("swapa [%1] %2, %0\n\t" : "=&r"(val) - : "r"(ptr), "i"(ASI_LEON_DCACHE_MISS) + __asm__ __volatile__("swapa [%2] %3, %0\n\t" : "=&r"(val) + : "0"(val), "r"(ptr), "i"(ASI_LEON_DCACHE_MISS) : "memory"); return val; } diff --git a/arch/sparc/kernel/rtrap_32.S b/arch/sparc/kernel/rtrap_32.S index 4da2e1f66290..5f5f74c2c2ca 100644 --- a/arch/sparc/kernel/rtrap_32.S +++ b/arch/sparc/kernel/rtrap_32.S @@ -78,9 +78,9 @@ signal_p: call do_notify_resume add %sp, STACKFRAME_SZ, %o0 ! pt_regs ptr - /* Fall through. */ - ld [%sp + STACKFRAME_SZ + PT_PSR], %t_psr - clr %l6 + b signal_p + ld [%curptr + TI_FLAGS], %g2 + ret_trap_continue: sethi %hi(PSR_SYSCALL), %g1 andn %t_psr, %g1, %t_psr diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S index 090b9e9ad5e3..77f1b95e0806 100644 --- a/arch/sparc/kernel/rtrap_64.S +++ b/arch/sparc/kernel/rtrap_64.S @@ -34,37 +34,9 @@ __handle_preemption: __handle_user_windows: call fault_in_user_windows wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - /* Redo sched+sig checks */ - 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_user_windows_continue - nop - 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 - ba,pt %xcc, __handle_user_windows_continue + ba,pt %xcc, __handle_preemption_continue + wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - andn %l1, %l4, %l1 __handle_userfpu: rd %fprs, %l5 andcc %l5, FPRS_FEF, %g0 @@ -87,7 +59,7 @@ __handle_signal: ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 sethi %hi(0xf << 20), %l4 and %l1, %l4, %l4 - ba,pt %xcc, __handle_signal_continue + ba,pt %xcc, __handle_preemption_continue andn %l1, %l4, %l1 /* When returning from a NMI (%pil==15) interrupt we want to @@ -177,11 +149,9 @@ __handle_preemption_continue: bne,pn %xcc, __handle_preemption andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 bne,pn %xcc, __handle_signal -__handle_signal_continue: ldub [%g6 + TI_WSAVED], %o2 brnz,pn %o2, __handle_user_windows nop -__handle_user_windows_continue: sethi %hi(TSTATE_PEF), %o0 andcc %l1, %o0, %g0 |