Pull video into test branch

[linux-drm-fsl-dcu.git] / arch / powerpc / platforms / pseries / setup.c

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 98189d8efaca8810f63c0c654932a0a4e9d2e44a..042ecae107ac89066c5596ab0ccafe58161539d9 100644 (file)
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -121,12 +121,11 @@ static void __init fwnmi_init(void)
                fwnmi_active = 1;
 }
 
-void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc,
-                         struct pt_regs *regs)
+void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc)
 {
-       unsigned int cascade_irq = i8259_irq(regs);
+       unsigned int cascade_irq = i8259_irq();
        if (cascade_irq != NO_IRQ)
-               generic_handle_irq(cascade_irq, regs);
+               generic_handle_irq(cascade_irq);
        desc->chip->eoi(irq);
 }
 
@@ -180,7 +179,7 @@ static void __init pseries_mpic_init_IRQ(void)
 
        cascade_irq = irq_of_parse_and_map(cascade, 0);
        if (cascade == NO_IRQ) {
-               printk(KERN_ERR "xics: failed to map cascade interrupt");
+               printk(KERN_ERR "mpic: failed to map cascade interrupt");
                return;
        }
 
@@ -348,17 +347,6 @@ static int __init pSeries_init_panel(void)
 }
 arch_initcall(pSeries_init_panel);
 
-static void pSeries_mach_cpu_die(void)
-{
-       local_irq_disable();
-       idle_task_exit();
-       xics_teardown_cpu(0);
-       rtas_stop_self();
-       /* Should never get here... */
-       BUG();
-       for(;;);
-}
-
 static int pseries_set_dabr(unsigned long dabr)
 {
        return plpar_hcall_norets(H_SET_DABR, dabr);
@@ -415,12 +403,6 @@ static int pSeries_check_legacy_ioport(unsigned int baseport)
                        return -ENODEV;
                of_node_put(np);
                break;
-       case PARALLEL_BASE:
-               np = of_find_node_by_type(NULL, "parallel");
-               if (np == NULL)
-                       return -ENODEV;
-               of_node_put(np);
-               break;
        }
        return 0;
 }
@@ -440,19 +422,14 @@ static int __init pSeries_probe_hypertas(unsigned long node,
        if (of_get_flat_dt_prop(node, "ibm,hypertas-functions", NULL) != NULL)
                powerpc_firmware_features |= FW_FEATURE_LPAR;
 
-       if (firmware_has_feature(FW_FEATURE_LPAR))
-               hpte_init_lpar();
-       else
-               hpte_init_native();
-
        return 1;
 }
 
 static int __init pSeries_probe(void)
 {
        unsigned long root = of_get_flat_dt_root();
-       char *dtype = of_get_flat_dt_prop(of_get_flat_dt_root(),
-                                         "device_type", NULL);
+       char *dtype = of_get_flat_dt_prop(root, "device_type", NULL);
+
        if (dtype == NULL)
                return 0;
        if (strcmp(dtype, "chrp"))
@@ -470,6 +447,11 @@ static int __init pSeries_probe(void)
        /* Now try to figure out if we are running on LPAR */
        of_scan_flat_dt(pSeries_probe_hypertas, NULL);
 
+       if (firmware_has_feature(FW_FEATURE_LPAR))
+               hpte_init_lpar();
+       else
+               hpte_init_native();
+
        DBG("Machine is%s LPAR !\n",
            (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not");
 
@@ -483,7 +465,6 @@ static void pseries_dedicated_idle_sleep(void)
 { 
        unsigned int cpu = smp_processor_id();
        unsigned long start_snooze;
-       unsigned long *smt_snooze_delay = &__get_cpu_var(smt_snooze_delay);
 
        /*
         * Indicate to the HV that we are idle. Now would be
@@ -496,9 +477,9 @@ static void pseries_dedicated_idle_sleep(void)
         * has been checked recently.  If we should poll for a little
         * while, do so.
         */
-       if (*smt_snooze_delay) {
+       if (__get_cpu_var(smt_snooze_delay)) {
                start_snooze = get_tb() +
-                       *smt_snooze_delay * tb_ticks_per_usec;
+                       __get_cpu_var(smt_snooze_delay) * tb_ticks_per_usec;
                local_irq_enable();
                set_thread_flag(TIF_POLLING_NRFLAG);
 
@@ -518,24 +499,7 @@ static void pseries_dedicated_idle_sleep(void)
                        goto out;
        }
 
-       /*
-        * If not SMT, cede processor.  If CPU is running SMT
-        * cede if the other thread is not idle, so that it can
-        * go single-threaded.  If the other thread is idle,
-        * we ask the hypervisor if it has pending work it
-        * wants to do and cede if it does.  Otherwise we keep
-        * polling in order to reduce interrupt latency.
-        *
-        * Doing the cede when the other thread is active will
-        * result in this thread going dormant, meaning the other
-        * thread gets to run in single-threaded (ST) mode, which
-        * is slightly faster than SMT mode with this thread at
-        * very low priority.  The cede enables interrupts, which
-        * doesn't matter here.
-        */
-       if (!cpu_has_feature(CPU_FTR_SMT) || !lppaca[cpu ^ 1].idle
-           || poll_pending() == H_PENDING)
-               cede_processor();
+       cede_processor();
 
 out:
        HMT_medium();
@@ -578,12 +542,10 @@ define_machine(pseries) {
        .log_error              = pSeries_log_error,
        .pcibios_fixup          = pSeries_final_fixup,
        .pci_probe_mode         = pSeries_pci_probe_mode,
-       .irq_bus_setup          = pSeries_irq_bus_setup,
        .restart                = rtas_restart,
        .power_off              = rtas_power_off,
        .halt                   = rtas_halt,
        .panic                  = rtas_os_term,
-       .cpu_die                = pSeries_mach_cpu_die,
        .get_boot_time          = rtas_get_boot_time,
        .get_rtc_time           = rtas_get_rtc_time,
        .set_rtc_time           = rtas_set_rtc_time,