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Viewing changes to arch/powerpc/kernel/process.c

  • Committer: Package Import Robot
  • Author(s): Paolo Pisati, Paolo Pisati
  • Date: 2011-12-06 15:56:07 UTC
  • Revision ID: package-import@ubuntu.com-20111206155607-pcf44kv5fmhk564f
Tags: 3.2.0-1401.1
[ Paolo Pisati ]

* Rebased on top of Ubuntu-3.2.0-3.8
* Tilt-tracking @ ef2487af4bb15bdd0689631774b5a5e3a59f74e2
* Delete debian.ti-omap4/control, it shoudln't be tracked
* Fix architecture spelling (s/armel/armhf/)
* [Config] Update configs following 3.2 import
* [Config] Fix compilation: disable CODA and ARCH_OMAP3
* [Config] Fix compilation: disable Ethernet Faraday
* Update series to precise

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Lines of Context:
arch/powerpc/kernel/process.c
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#include <linux/init.h>
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#include <linux/prctl.h>
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#include <linux/init_task.h>
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#include <linux/module.h>
 
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#include <linux/export.h>
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#include <linux/kallsyms.h>
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#include <linux/mqueue.h>
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#include <linux/hardirq.h>
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                preempt_enable();
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        }
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}
 
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EXPORT_SYMBOL_GPL(flush_fp_to_thread);
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void enable_kernel_fp(void)
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{
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                preempt_enable();
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        }
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}
 
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EXPORT_SYMBOL_GPL(flush_altivec_to_thread);
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#endif /* CONFIG_ALTIVEC */
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#ifdef CONFIG_VSX
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                preempt_enable();
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        }
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}
 
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EXPORT_SYMBOL_GPL(flush_vsx_to_thread);
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#endif /* CONFIG_VSX */
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#ifdef CONFIG_SPE
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#ifdef CONFIG_SMP
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                        BUG_ON(tsk != current);
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#endif
 
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                        tsk->thread.spefscr = mfspr(SPRN_SPEFSCR);
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                        giveup_spe(tsk);
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                }
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                preempt_enable();
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        new_thread = &new->thread;
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        old_thread = &current->thread;
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#if defined(CONFIG_PPC_BOOK3E_64)
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        /* XXX Current Book3E code doesn't deal with kernel side DBCR0,
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         * we always hold the user values, so we set it now.
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         *
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         * However, we ensure the kernel MSR:DE is appropriately cleared too
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         * to avoid spurrious single step exceptions in the kernel.
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         *
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         * This will have to change to merge with the ppc32 code at some point,
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         * but I don't like much what ppc32 is doing today so there's some
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         * thinking needed there
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         */
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        if ((new_thread->dbcr0 | old_thread->dbcr0) & DBCR0_IDM) {
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                u32 dbcr0;
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                mtmsr(mfmsr() & ~MSR_DE);
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                isync();
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                dbcr0 = mfspr(SPRN_DBCR0);
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                dbcr0 = (dbcr0 & DBCR0_EDM) | new_thread->dbcr0;
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                mtspr(SPRN_DBCR0, dbcr0);
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        }
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#endif /* CONFIG_PPC64_BOOK3E */
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#ifdef CONFIG_PPC64
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        /*
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         * Collect processor utilization data per process
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        printbits(regs->msr, msr_bits);
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        printk("  CR: %08lx  XER: %08lx\n", regs->ccr, regs->xer);
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        trap = TRAP(regs);
 
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        if ((regs->trap != 0xc00) && cpu_has_feature(CPU_FTR_CFAR))
 
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                printk("CFAR: "REG"\n", regs->orig_gpr3);
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        if (trap == 0x300 || trap == 0x600)
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#ifdef CONFIG_PPC_ADV_DEBUG_REGS
 
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#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
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                printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr);
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#else
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                printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr);
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        unsigned long load_addr = regs->gpr[2]; /* saved by ELF_PLAT_INIT */
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#endif
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        set_fs(USER_DS);
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        /*
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         * If we exec out of a kernel thread then thread.regs will not be
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         * set.  Do it now.