diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-24 17:30:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-24 17:30:44 -0700 |
| commit | 56f1f4b24e8787d7ba794dbe2e949d504c054892 (patch) | |
| tree | b884069e95f50fee18cb0834a304d059d84bf2d0 /arch | |
| parent | 8a1094462c7ec47f9d3a31b0a281ce35cb138f50 (diff) | |
| parent | cb3042d609e30e6144024801c89be3925106752b (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
1) Do serial locking in a way that makes things clear that these are
IRQ spinlocks.
2) Conversion to generic idle loop broke first generation Niagara
machines, need to have %pil interrupts enabled during cpu yield
hypervisor call.
3) Do not use magic constants for iterations over tsb tables, from Doug
Wilson.
4) Fix erroneous truncation of 64-bit system call return values to
32-bit. From Dave Kleikamp.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Make sure %pil interrupts are enabled during hypervisor yield.
sparc64:tsb.c:use array size macro rather than number
sparc64: don't treat 64-bit syscall return codes as 32-bit
sparc: serial: Clean up the locking for -rt
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/kernel/process_64.c | 4 | ||||
| -rw-r--r-- | arch/sparc/kernel/syscalls.S | 4 | ||||
| -rw-r--r-- | arch/sparc/mm/tsb.c | 2 |
3 files changed, 6 insertions, 4 deletions
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index 32a280ec38c..d7b4967f8fa 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -58,9 +58,12 @@ void arch_cpu_idle(void) { if (tlb_type != hypervisor) { touch_nmi_watchdog(); + local_irq_enable(); } else { unsigned long pstate; + local_irq_enable(); + /* The sun4v sleeping code requires that we have PSTATE.IE cleared over * the cpu sleep hypervisor call. */ @@ -82,7 +85,6 @@ void arch_cpu_idle(void) : "=&r" (pstate) : "i" (PSTATE_IE)); } - local_irq_enable(); } #ifdef CONFIG_HOTPLUG_CPU diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S index 87729fff13b..33a17e7b3cc 100644 --- a/arch/sparc/kernel/syscalls.S +++ b/arch/sparc/kernel/syscalls.S @@ -189,7 +189,8 @@ linux_sparc_syscall32: mov %i0, %l5 ! IEU1 5: call %l7 ! CTI Group brk forced srl %i5, 0, %o5 ! IEU1 - ba,a,pt %xcc, 3f + ba,pt %xcc, 3f + sra %o0, 0, %o0 /* Linux native system calls enter here... */ .align 32 @@ -217,7 +218,6 @@ linux_sparc_syscall: 3: stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] ret_sys_call: ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %g3 - sra %o0, 0, %o0 mov %ulo(TSTATE_XCARRY | TSTATE_ICARRY), %g2 sllx %g2, 32, %g2 diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c index 3b3a360b429..f5d506fddda 100644 --- a/arch/sparc/mm/tsb.c +++ b/arch/sparc/mm/tsb.c @@ -273,7 +273,7 @@ void __init pgtable_cache_init(void) prom_halt(); } - for (i = 0; i < 8; i++) { + for (i = 0; i < ARRAY_SIZE(tsb_cache_names); i++) { unsigned long size = 8192 << i; const char *name = tsb_cache_names[i]; |