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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-15 12:51:09 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-15 12:51:09 -0400
commit723e9db7a46e328527cc3da2b478b831184fe828 (patch)
treecdeda255633057dcb4c84097bed27b2bbf76970f /arch/powerpc/kernel/process.c
parentada3fa15057205b7d3f727bba5cd26b5912e350f (diff)
parentd331d8305cba713605854aab63a000fb892353a7 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (134 commits) powerpc/nvram: Enable use Generic NVRAM driver for different size chips powerpc/iseries: Fix oops reading from /proc/iSeries/mf/*/cmdline powerpc/ps3: Workaround for flash memory I/O error powerpc/booke: Don't set DABR on 64-bit BookE, use DAC1 instead powerpc/perf_counters: Reduce stack usage of power_check_constraints powerpc: Fix bug where perf_counters breaks oprofile powerpc/85xx: Fix SMP compile error and allow NULL for smp_ops powerpc/irq: Improve nanodoc powerpc: Fix some late PowerMac G5 with PCIe ATI graphics powerpc/fsl-booke: Use HW PTE format if CONFIG_PTE_64BIT powerpc/book3e: Add missing page sizes powerpc/pseries: Fix to handle slb resize across migration powerpc/powermac: Thermal control turns system off too eagerly powerpc/pci: Merge ppc32 and ppc64 versions of phb_scan() powerpc/405ex: support cuImage via included dtb powerpc/405ex: provide necessary fixup function to support cuImage powerpc/40x: Add support for the ESTeem 195E (PPC405EP) SBC powerpc/44x: Add Eiger AMCC (AppliedMicro) PPC460SX evaluation board support. powerpc/44x: Update Arches defconfig powerpc/44x: Update Arches dts ... Fix up conflicts in drivers/char/agp/uninorth-agp.c
Diffstat (limited to 'arch/powerpc/kernel/process.c')
-rw-r--r--arch/powerpc/kernel/process.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 892a9f2e6d76..0a3216433051 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -284,14 +284,13 @@ int set_dabr(unsigned long dabr)
284 return ppc_md.set_dabr(dabr); 284 return ppc_md.set_dabr(dabr);
285 285
286 /* XXX should we have a CPU_FTR_HAS_DABR ? */ 286 /* XXX should we have a CPU_FTR_HAS_DABR ? */
287#if defined(CONFIG_PPC64) || defined(CONFIG_6xx)
288 mtspr(SPRN_DABR, dabr);
289#endif
290
291#if defined(CONFIG_BOOKE) 287#if defined(CONFIG_BOOKE)
292 mtspr(SPRN_DAC1, dabr); 288 mtspr(SPRN_DAC1, dabr);
289#elif defined(CONFIG_PPC_BOOK3S)
290 mtspr(SPRN_DABR, dabr);
293#endif 291#endif
294 292
293
295 return 0; 294 return 0;
296} 295}
297 296
@@ -372,15 +371,16 @@ struct task_struct *__switch_to(struct task_struct *prev,
372 371
373#endif /* CONFIG_SMP */ 372#endif /* CONFIG_SMP */
374 373
375 if (unlikely(__get_cpu_var(current_dabr) != new->thread.dabr))
376 set_dabr(new->thread.dabr);
377
378#if defined(CONFIG_BOOKE) 374#if defined(CONFIG_BOOKE)
379 /* If new thread DAC (HW breakpoint) is the same then leave it */ 375 /* If new thread DAC (HW breakpoint) is the same then leave it */
380 if (new->thread.dabr) 376 if (new->thread.dabr)
381 set_dabr(new->thread.dabr); 377 set_dabr(new->thread.dabr);
378#else
379 if (unlikely(__get_cpu_var(current_dabr) != new->thread.dabr))
380 set_dabr(new->thread.dabr);
382#endif 381#endif
383 382
383
384 new_thread = &new->thread; 384 new_thread = &new->thread;
385 old_thread = &current->thread; 385 old_thread = &current->thread;
386 386
@@ -664,6 +664,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
664 sp_vsid |= SLB_VSID_KERNEL | llp; 664 sp_vsid |= SLB_VSID_KERNEL | llp;
665 p->thread.ksp_vsid = sp_vsid; 665 p->thread.ksp_vsid = sp_vsid;
666 } 666 }
667#endif /* CONFIG_PPC_STD_MMU_64 */
667 668
668 /* 669 /*
669 * The PPC64 ABI makes use of a TOC to contain function 670 * The PPC64 ABI makes use of a TOC to contain function
@@ -671,6 +672,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
671 * to the TOC entry. The first entry is a pointer to the actual 672 * to the TOC entry. The first entry is a pointer to the actual
672 * function. 673 * function.
673 */ 674 */
675#ifdef CONFIG_PPC64
674 kregs->nip = *((unsigned long *)ret_from_fork); 676 kregs->nip = *((unsigned long *)ret_from_fork);
675#else 677#else
676 kregs->nip = (unsigned long)ret_from_fork; 678 kregs->nip = (unsigned long)ret_from_fork;