Merge branch 'next' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx

[linux-2.6] / arch / powerpc / kernel / setup_32.c

diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 5112a4aa801d7d6843c2202c7815147831a74d2e..9e83add5429095a0ad2cae19c184a7f2bdd5c693 100644 (file)
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -127,6 +127,11 @@ void __init machine_init(unsigned long dt_ptr, unsigned long phys)
                ppc_md.power_save = ppc6xx_idle;
 #endif
 
+#ifdef CONFIG_E500
+       if (cpu_has_feature(CPU_FTR_CAN_DOZE) ||
+           cpu_has_feature(CPU_FTR_CAN_NAP))
+               ppc_md.power_save = e500_idle;
+#endif
        if (ppc_md.progress)
                ppc_md.progress("id mach(): done", 0x200);
 }
@@ -248,6 +253,28 @@ static void __init irqstack_early_init(void)
 #define irqstack_early_init()
 #endif
 
+#if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
+static void __init exc_lvl_early_init(void)
+{
+       unsigned int i;
+
+       /* interrupt stacks must be in lowmem, we get that for free on ppc32
+        * as the lmb is limited to lowmem by LMB_REAL_LIMIT */
+       for_each_possible_cpu(i) {
+               critirq_ctx[i] = (struct thread_info *)
+                       __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
+#ifdef CONFIG_BOOKE
+               dbgirq_ctx[i] = (struct thread_info *)
+                       __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
+               mcheckirq_ctx[i] = (struct thread_info *)
+                       __va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
+#endif
+       }
+}
+#else
+#define exc_lvl_early_init()
+#endif
+
 /* Warning, IO base is not yet inited */
 void __init setup_arch(char **cmdline_p)
 {
@@ -305,6 +332,8 @@ void __init setup_arch(char **cmdline_p)
        init_mm.end_data = (unsigned long) _edata;
        init_mm.brk = klimit;
 
+       exc_lvl_early_init();
+
        irqstack_early_init();
 
        /* set up the bootmem stuff with available memory */