diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-24 08:37:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-24 08:37:29 -0700 |
| commit | e270b51df657011983241ec61a1fc7de186e16cd (patch) | |
| tree | 3397be4cbf31676ca6ebb187903e8cfc2218f223 /arch/sparc64/kernel/rtrap.S | |
| parent | 8fa82790fb9dfe57aeafc8de6b6a5c1df63efa06 (diff) | |
| parent | 227739bf4c110bbd02d0c0f13b272c32de406e4c (diff) | |
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: (23 commits)
sparc: sunzilog uart order
[SPARC64]: Detect trap frames in stack backtraces.
[SPARC64]: %l6 trap return handling no longer necessary.
[SPARC64]: Use trap type stored in pt_regs to handle syscall restart.
[SPARC64]: Store magic cookie and trap type in pt_regs.
[SPARC64]: PROM debug console can be CON_ANYTIME.
sparc64: cleanup after SunOS/Solaris binary emulation removal
sparc: cleanup after SunOS binary emulation removal
[SPARC64]: Add NUMA support.
[SPARC64]: Allocate TSB node-local.
[SPARC64]: NUMA device infrastructure.
[SPARC64]: Kill pci_iommu_table_init() declaration.
[SPARC64]: Once we have the boot cmdline, call parse_early_param()
[SPARC64]: Remove unused asm-sparc64/numnodes.h
[SPARC64]: Decrease SECTION_SIZE_BITS to 30.
[SPARC64]: Initialize MDESC earlier and use lmb_alloc()
[SPARC64]: Use lmb_alloc() for PROM device tree.
[SPARC64]: Call real_setup_per_cpu_areas() earlier and use lmb_alloc().
[SPARC64]: Fully use LMB information in bootmem_init().
[SPARC64]: Start using LMB information in bootmem_init().
...
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 |