Merge branches 'hyperv', 'multitouch', 'roccat', 'upstream', 'upstream-fixes', 'wacom...

[firefly-linux-kernel-4.4.55.git] / arch / powerpc / kernel / process.c

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 9054ca9ab4f93bcd6100cc0fcb03c7d5f4caf857..6457574c0b2f32fbaa800b11eeed0cbd8877a77e 100644 (file)
--- 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 = &current->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);