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| author | Ingo Molnar <mingo@elte.hu> | 2011-12-20 20:32:03 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-20 20:32:11 +0100 |
| commit | d87f69a16eb2cb96459117b06949a560679002e4 (patch) | |
| tree | bbb55b2bd2b6c9e8bd4067aa3279783cb6bd9028 /arch/powerpc/kernel/process.c | |
| parent | 124ba9403318d834ef21bcd899c22c870708d2c4 (diff) | |
| parent | 384703b8e6cd4c8ef08512e596024e028c91c339 (diff) | |
Merge commit 'v3.2-rc6' into perf/core
Merge reason: Update with the latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 24 |
1 files changed, 1 insertions, 23 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 9054ca9ab4f9..6457574c0b2f 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -486,28 +486,6 @@ struct task_struct *__switch_to(struct task_struct *prev, new_thread = &new->thread; old_thread = ¤t->thread; -#if defined(CONFIG_PPC_BOOK3E_64) - /* XXX Current Book3E code doesn't deal with kernel side DBCR0, - * we always hold the user values, so we set it now. - * - * However, we ensure the kernel MSR:DE is appropriately cleared too - * to avoid spurrious single step exceptions in the kernel. - * - * This will have to change to merge with the ppc32 code at some point, - * but I don't like much what ppc32 is doing today so there's some - * thinking needed there - */ - if ((new_thread->dbcr0 | old_thread->dbcr0) & DBCR0_IDM) { - u32 dbcr0; - - mtmsr(mfmsr() & ~MSR_DE); - isync(); - dbcr0 = mfspr(SPRN_DBCR0); - dbcr0 = (dbcr0 & DBCR0_EDM) | new_thread->dbcr0; - mtspr(SPRN_DBCR0, dbcr0); - } -#endif /* CONFIG_PPC64_BOOK3E */ - #ifdef CONFIG_PPC64 /* * Collect processor utilization data per process @@ -657,7 +635,7 @@ void show_regs(struct pt_regs * regs) if ((regs->trap != 0xc00) && cpu_has_feature(CPU_FTR_CFAR)) printk("CFAR: "REG"\n", regs->orig_gpr3); if (trap == 0x300 || trap == 0x600) -#ifdef CONFIG_PPC_ADV_DEBUG_REGS +#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr); #else printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr); |