Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge

14 files changed, 178 insertions, 216 deletions

diff --git a/arch/ppc/boot/include/of1275.h b/arch/ppc/boot/include/of1275.h
index 69173df76db0..4ed88acfa73a 100644
--- a/arch/ppc/boot/include/of1275.h
+++ b/arch/ppc/boot/include/of1275.h
@@ -19,6 +19,9 @@ extern prom_entry of_prom_entry;
 
 /* function declarations */
 
+int     call_prom(const char *service, int nargs, int nret, ...);
+int     call_prom_ret(const char *service, int nargs, int nret,
+                      unsigned int *rets, ...);
 void *  claim(unsigned int virt, unsigned int size, unsigned int align);
 int     map(unsigned int phys, unsigned int virt, unsigned int size);
 void    enter(void);
diff --git a/arch/ppc/boot/of1275/Makefile b/arch/ppc/boot/of1275/Makefile
index 02e6f235d7cb..0b979c004972 100644
--- a/arch/ppc/boot/of1275/Makefile
+++ b/arch/ppc/boot/of1275/Makefile
@@ -3,4 +3,4 @@
 #
 
 lib-y := claim.o enter.o exit.o finddevice.o getprop.o ofinit.o \
-         ofstdio.o read.o release.o write.o map.o
+         ofstdio.o read.o release.o write.o map.o call_prom.o
diff --git a/arch/ppc/boot/of1275/call_prom.c b/arch/ppc/boot/of1275/call_prom.c
new file mode 100644
index 000000000000..9479a3a2b8c7
--- /dev/null
+++ b/arch/ppc/boot/of1275/call_prom.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 1996-2005 Paul Mackerras.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include "of1275.h"
+#include <stdarg.h>
+
+int call_prom(const char *service, int nargs, int nret, ...)
+{
+        int i;
+        struct prom_args {
+                const char *service;
+                int nargs;
+                int nret;
+                unsigned int args[12];
+        } args;
+        va_list list;
+
+        args.service = service;
+        args.nargs = nargs;
+        args.nret = nret;
+
+        va_start(list, nret);
+        for (i = 0; i < nargs; i++)
+                args.args[i] = va_arg(list, unsigned int);
+        va_end(list);
+
+        for (i = 0; i < nret; i++)
+                args.args[nargs+i] = 0;
+
+        if (of_prom_entry(&args) < 0)
+                return -1;
+
+        return (nret > 0)? args.args[nargs]: 0;
+}
+
+int call_prom_ret(const char *service, int nargs, int nret,
+                  unsigned int *rets, ...)
+{
+        int i;
+        struct prom_args {
+                const char *service;
+                int nargs;
+                int nret;
+                unsigned int args[12];
+        } args;
+        va_list list;
+
+        args.service = service;
+        args.nargs = nargs;
+        args.nret = nret;
+
+        va_start(list, rets);
+        for (i = 0; i < nargs; i++)
+                args.args[i] = va_arg(list, unsigned int);
+        va_end(list);
+
+        for (i = 0; i < nret; i++)
+                args.args[nargs+i] = 0;
+
+        if (of_prom_entry(&args) < 0)
+                return -1;
+
+        if (rets != (void *) 0)
+                for (i = 1; i < nret; ++i)
+                        rets[i-1] = args.args[nargs+i];
+
+        return (nret > 0)? args.args[nargs]: 0;
+}
diff --git a/arch/ppc/boot/of1275/claim.c b/arch/ppc/boot/of1275/claim.c
index 13169a5c4339..1ed3aeeff8ae 100644
--- a/arch/ppc/boot/of1275/claim.c
+++ b/arch/ppc/boot/of1275/claim.c
@@ -9,27 +9,84 @@
  */
 
 #include "of1275.h"
+#include "nonstdio.h"
 
-void *
-claim(unsigned int virt, unsigned int size, unsigned int align)
+/*
+ * Older OF's require that when claiming a specific range of addresses,
+ * we claim the physical space in the /memory node and the virtual
+ * space in the chosen mmu node, and then do a map operation to
+ * map virtual to physical.
+ */
+static int need_map = -1;
+static ihandle chosen_mmu;
+static phandle memory;
+
+/* returns true if s2 is a prefix of s1 */
+static int string_match(const char *s1, const char *s2)
+{
+        for (; *s2; ++s2)
+                if (*s1++ != *s2)
+                        return 0;
+        return 1;
+}
+
+static int check_of_version(void)
+{
+        phandle oprom, chosen;
+        char version[64];
+
+        oprom = finddevice("/openprom");
+        if (oprom == OF_INVALID_HANDLE)
+                return 0;
+        if (getprop(oprom, "model", version, sizeof(version)) <= 0)
+                return 0;
+        version[sizeof(version)-1] = 0;
+        printf("OF version = '%s'\n", version);
+        if (!string_match(version, "Open Firmware, 1.")
+            && !string_match(version, "FirmWorks,3."))
+                return 0;
+        chosen = finddevice("/chosen");
+        if (chosen == OF_INVALID_HANDLE) {
+                chosen = finddevice("/chosen@0");
+                if (chosen == OF_INVALID_HANDLE) {
+                        printf("no chosen\n");
+                        return 0;
+                }
+        }
+        if (getprop(chosen, "mmu", &chosen_mmu, sizeof(chosen_mmu)) <= 0) {
+                printf("no mmu\n");
+                return 0;
+        }
+        memory = (ihandle) call_prom("open", 1, 1, "/memory");
+        if (memory == OF_INVALID_HANDLE) {
+                memory = (ihandle) call_prom("open", 1, 1, "/memory@0");
+                if (memory == OF_INVALID_HANDLE) {
+                        printf("no memory node\n");
+                        return 0;
+                }
+        }
+        printf("old OF detected\n");
+        return 1;
+}
+
+void *claim(unsigned int virt, unsigned int size, unsigned int align)
 {
-    struct prom_args {
-        char *service;
-        int nargs;
-        int nret;
-        unsigned int virt;
-        unsigned int size;
-        unsigned int align;
-        void *ret;
-    } args;
+        int ret;
+        unsigned int result;
 
-    args.service = "claim";
-    args.nargs = 3;
-    args.nret = 1;
-    args.virt = virt;
-    args.size = size;
-    args.align = align;
-    args.ret = (void *) 0;
-    (*of_prom_entry)(&args);
-    return args.ret;
+        if (need_map < 0)
+                need_map = check_of_version();
+        if (align || !need_map)
+                return (void *) call_prom("claim", 3, 1, virt, size, align);
+        
+        ret = call_prom_ret("call-method", 5, 2, &result, "claim", memory,
+                            align, size, virt);
+        if (ret != 0 || result == -1)
+                return (void *) -1;
+        ret = call_prom_ret("call-method", 5, 2, &result, "claim", chosen_mmu,
+                            align, size, virt);
+        /* 0x12 == coherent + read/write */
+        ret = call_prom("call-method", 6, 1, "map", chosen_mmu,
+                        0x12, size, virt, virt);
+        return virt;
 }
diff --git a/arch/ppc/boot/of1275/finddevice.c b/arch/ppc/boot/of1275/finddevice.c
index 2c0f7cbb793e..0dcb1201b772 100644
--- a/arch/ppc/boot/of1275/finddevice.c
+++ b/arch/ppc/boot/of1275/finddevice.c
@@ -10,22 +10,7 @@
 
 #include "of1275.h"
 
-phandle
-finddevice(const char *name)
+phandle finddevice(const char *name)
 {
-    struct prom_args {
-        char *service;
-        int nargs;
-        int nret;
-        const char *devspec;
-        phandle device;
-    } args;
-
-    args.service = "finddevice";
-    args.nargs = 1;
-    args.nret = 1;
-    args.devspec = name;
-    args.device = OF_INVALID_HANDLE;
-    (*of_prom_entry)(&args);
-    return args.device;
+        return (phandle) call_prom("finddevice", 1, 1, name);
 }
diff --git a/arch/ppc/boot/openfirmware/Makefile b/arch/ppc/boot/openfirmware/Makefile
index 03415238fabf..83a6433459ce 100644
--- a/arch/ppc/boot/openfirmware/Makefile
+++ b/arch/ppc/boot/openfirmware/Makefile
@@ -80,8 +80,7 @@ $(obj)/note: $(utils)/mknote FORCE
         $(call if_changed,mknote)
 
 
-$(obj)/coffcrt0.o: EXTRA_AFLAGS := -traditional -DXCOFF
-$(obj)/crt0.o:     EXTRA_AFLAGS := -traditional
+$(obj)/coffcrt0.o: EXTRA_AFLAGS := -DXCOFF
 targets += coffcrt0.o crt0.o
 $(obj)/coffcrt0.o $(obj)/crt0.o: $(common)/crt0.S FORCE
         $(call if_changed_dep,as_o_S)
diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index 76a55a438f23..17a4da65e275 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -12,7 +12,7 @@ extra-$(CONFIG_6xx)		+= idle_6xx.o
 extra-$(CONFIG_POWER4)          += idle_power4.o
 extra-y                         += vmlinux.lds
 
-obj-y                           := entry.o traps.o irq.o idle.o time.o misc.o \
+obj-y                           := entry.o traps.o idle.o time.o misc.o \
                                         process.o align.o \
                                         setup.o \
                                         ppc_htab.o
@@ -38,8 +38,7 @@ endif
 # These are here while we do the architecture merge
 
 else
-obj-y                           := irq.o idle.o \
-                                        align.o
+obj-y                           := idle.o align.o
 obj-$(CONFIG_6xx)               += l2cr.o cpu_setup_6xx.o
 obj-$(CONFIG_SOFTWARE_SUSPEND)  += swsusp.o
 obj-$(CONFIG_MODULES)           += module.o
diff --git a/arch/ppc/kernel/head_booke.h b/arch/ppc/kernel/head_booke.h
index aeb349b47af3..f3d274c6b231 100644
--- a/arch/ppc/kernel/head_booke.h
+++ b/arch/ppc/kernel/head_booke.h
@@ -358,6 +358,6 @@ label:
         NORMAL_EXCEPTION_PROLOG;                                              \
         bne     load_up_fpu;            /* if from user, just load it up */   \
         addi    r3,r1,STACK_FRAME_OVERHEAD;                                   \
-        EXC_XFER_EE_LITE(0x800, KernelFP)
+        EXC_XFER_EE_LITE(0x800, kernel_fp_unavailable_exception)
 
 #endif /* __HEAD_BOOKE_H__ */
diff --git a/arch/ppc/kernel/irq.c b/arch/ppc/kernel/irq.c
deleted file mode 100644
index fbb2b9f8922c..000000000000
--- a/arch/ppc/kernel/irq.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- *  arch/ppc/kernel/irq.c
- *
- *  Derived from arch/i386/kernel/irq.c
- *    Copyright (C) 1992 Linus Torvalds
- *  Adapted from arch/i386 by Gary Thomas
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *  Updated and modified by Cort Dougan <cort@fsmlabs.com>
- *    Copyright (C) 1996-2001 Cort Dougan
- *  Adapted for Power Macintosh by Paul Mackerras
- *    Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
- *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
- *
- * This file contains the code used by various IRQ handling routines:
- * asking for different IRQ's should be done through these routines
- * instead of just grabbing them. Thus setups with different IRQ numbers
- * shouldn't result in any weird surprises, and installing new handlers
- * should be easier.
- *
- * The MPC8xx has an interrupt mask in the SIU.  If a bit is set, the
- * interrupt is _enabled_.  As expected, IRQ0 is bit 0 in the 32-bit
- * mask register (of which only 16 are defined), hence the weird shifting
- * and complement of the cached_irq_mask.  I want to be able to stuff
- * this right into the SIU SMASK register.
- * Many of the prep/chrp functions are conditional compiled on CONFIG_8xx
- * to reduce code space and undefined function references.
- */
-
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/threads.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/proc_fs.h>
-#include <linux/random.h>
-#include <linux/seq_file.h>
-#include <linux/cpumask.h>
-#include <linux/profile.h>
-#include <linux/bitops.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/irq.h>
-#include <asm/cache.h>
-#include <asm/prom.h>
-#include <asm/ptrace.h>
-#include <asm/machdep.h>
-
-#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
-
-extern atomic_t ipi_recv;
-extern atomic_t ipi_sent;
-
-#define MAXCOUNT 10000000
-
-int ppc_spurious_interrupts = 0;
-struct irqaction *ppc_irq_action[NR_IRQS];
-unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
-unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
-atomic_t ppc_n_lost_interrupts;
-
-#ifdef CONFIG_TAU_INT
-extern int tau_initialized;
-extern int tau_interrupts(int);
-#endif
-
-int show_interrupts(struct seq_file *p, void *v)
-{
-        int i = *(loff_t *) v, j;
-        struct irqaction * action;
-        unsigned long flags;
-
-        if (i == 0) {
-                seq_puts(p, "           ");
-                for (j=0; j<NR_CPUS; j++)
-                        if (cpu_online(j))
-                                seq_printf(p, "CPU%d       ", j);
-                seq_putc(p, '\n');
-        }
-
-        if (i < NR_IRQS) {
-                spin_lock_irqsave(&irq_desc[i].lock, flags);
-                action = irq_desc[i].action;
-                if ( !action || !action->handler )
-                        goto skip;
-                seq_printf(p, "%3d: ", i);
-#ifdef CONFIG_SMP
-                for (j = 0; j < NR_CPUS; j++)
-                        if (cpu_online(j))
-                                seq_printf(p, "%10u ",
-                                           kstat_cpu(j).irqs[i]);
-#else
-                seq_printf(p, "%10u ", kstat_irqs(i));
-#endif /* CONFIG_SMP */
-                if (irq_desc[i].handler)
-                        seq_printf(p, " %s ", irq_desc[i].handler->typename);
-                else
-                        seq_puts(p, "  None      ");
-                seq_printf(p, "%s", (irq_desc[i].status & IRQ_LEVEL) ? "Level " : "Edge  ");
-                seq_printf(p, "    %s", action->name);
-                for (action = action->next; action; action = action->next)
-                        seq_printf(p, ", %s", action->name);
-                seq_putc(p, '\n');
-skip:
-                spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-        } else if (i == NR_IRQS) {
-#ifdef CONFIG_TAU_INT
-                if (tau_initialized){
-                        seq_puts(p, "TAU: ");
-                        for (j = 0; j < NR_CPUS; j++)
-                                if (cpu_online(j))
-                                        seq_printf(p, "%10u ", tau_interrupts(j));
-                        seq_puts(p, "  PowerPC             Thermal Assist (cpu temp)\n");
-                }
-#endif
-#if defined(CONFIG_SMP) && !defined(CONFIG_PPC_MERGE)
-                /* should this be per processor send/receive? */
-                seq_printf(p, "IPI (recv/sent): %10u/%u\n",
-                                atomic_read(&ipi_recv), atomic_read(&ipi_sent));
-#endif
-                seq_printf(p, "BAD: %10u\n", ppc_spurious_interrupts);
-        }
-        return 0;
-}
-
-void do_IRQ(struct pt_regs *regs)
-{
-        int irq, first = 1;
-        irq_enter();
-
-        /*
-         * Every platform is required to implement ppc_md.get_irq.
-         * This function will either return an irq number or -1 to
-         * indicate there are no more pending.  But the first time
-         * through the loop this means there wasn't and IRQ pending.
-         * The value -2 is for buggy hardware and means that this IRQ
-         * has already been handled. -- Tom
-         */
-        while ((irq = ppc_md.get_irq(regs)) >= 0) {
-                __do_IRQ(irq, regs);
-                first = 0;
-        }
-        if (irq != -2 && first)
-                /* That's not SMP safe ... but who cares ? */
-                ppc_spurious_interrupts++;
-        irq_exit();
-}
-
-void __init init_IRQ(void)
-{
-        ppc_md.init_IRQ();
-}
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index ae6af29938a1..5e61124581d0 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -497,9 +497,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
  * and invalidate the corresponding instruction cache blocks.
  * This is a no-op on the 601.
  *
- * flush_icache_range(unsigned long start, unsigned long stop)
+ * __flush_icache_range(unsigned long start, unsigned long stop)
  */
-_GLOBAL(flush_icache_range)
+_GLOBAL(__flush_icache_range)
 BEGIN_FTR_SECTION
         blr                             /* for 601, do nothing */
 END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
diff --git a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
index e0ca61b37f4f..66073f775193 100644
--- a/arch/ppc/kernel/ppc_ksyms.c
+++ b/arch/ppc/kernel/ppc_ksyms.c
@@ -46,6 +46,7 @@
 #include <asm/btext.h>
 #include <asm/div64.h>
 #include <asm/xmon.h>
+#include <asm/signal.h>
 
 #ifdef  CONFIG_8xx
 #include <asm/commproc.h>
@@ -57,7 +58,6 @@ extern void machine_check_exception(struct pt_regs *regs);
 extern void alignment_exception(struct pt_regs *regs);
 extern void program_check_exception(struct pt_regs *regs);
 extern void single_step_exception(struct pt_regs *regs);
-extern int do_signal(sigset_t *, struct pt_regs *);
 extern int pmac_newworld;
 extern int sys_sigreturn(struct pt_regs *regs);
 
@@ -78,7 +78,6 @@ EXPORT_SYMBOL(program_check_exception);
 EXPORT_SYMBOL(single_step_exception);
 EXPORT_SYMBOL(sys_sigreturn);
 EXPORT_SYMBOL(ppc_n_lost_interrupts);
-EXPORT_SYMBOL(ppc_lost_interrupts);
 
 EXPORT_SYMBOL(ISA_DMA_THRESHOLD);
 EXPORT_SYMBOL(DMA_MODE_READ);
@@ -176,6 +175,7 @@ EXPORT_SYMBOL(pci_bus_to_phys);
 #endif /* CONFIG_PCI */
 
 #ifdef CONFIG_NOT_COHERENT_CACHE
+extern void flush_dcache_all(void);
 EXPORT_SYMBOL(flush_dcache_all);
 #endif
 
@@ -217,9 +217,6 @@ EXPORT_SYMBOL(adb_try_handler_change);
 EXPORT_SYMBOL(cuda_request);
 EXPORT_SYMBOL(cuda_poll);
 #endif /* CONFIG_ADB_CUDA */
-#ifdef CONFIG_PPC_MULTIPLATFORM
-EXPORT_SYMBOL(_machine);
-#endif
 #ifdef CONFIG_PPC_PMAC
 EXPORT_SYMBOL(sys_ctrler);
 EXPORT_SYMBOL(pmac_newworld);
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index 6bcb85d2b7fd..dc55e1abc45b 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -76,6 +76,7 @@ unsigned int DMA_MODE_WRITE;
 
 #ifdef CONFIG_PPC_MULTIPLATFORM
 int _machine = 0;
+EXPORT_SYMBOL(_machine);
 
 extern void prep_init(unsigned long r3, unsigned long r4,
                 unsigned long r5, unsigned long r6, unsigned long r7);
diff --git a/arch/ppc/platforms/pmac_pic.c b/arch/ppc/platforms/pmac_pic.c
index 9f2d95ea8564..4742bf609357 100644
--- a/arch/ppc/platforms/pmac_pic.c
+++ b/arch/ppc/platforms/pmac_pic.c
@@ -75,6 +75,9 @@ static DEFINE_SPINLOCK(pmac_pic_lock);
 #define GATWICK_IRQ_POOL_SIZE        10
 static struct interrupt_info gatwick_int_pool[GATWICK_IRQ_POOL_SIZE];
 
+#define NR_MASK_WORDS   ((NR_IRQS + 31) / 32)
+static unsigned long ppc_lost_interrupts[NR_MASK_WORDS];
+
 /*
  * Mark an irq as "lost".  This is only used on the pmac
  * since it can lose interrupts (see pmac_set_irq_mask).
diff --git a/arch/ppc/platforms/prep_setup.c b/arch/ppc/platforms/prep_setup.c
index 067d7d53b81e..4415748071dc 100644
--- a/arch/ppc/platforms/prep_setup.c
+++ b/arch/ppc/platforms/prep_setup.c
@@ -61,6 +61,15 @@
 #include <asm/pci-bridge.h>
 #include <asm/todc.h>
 
+/* prep registers for L2 */
+#define CACHECRBA       0x80000823      /* Cache configuration register address */
+#define L2CACHE_MASK    0x03    /* Mask for 2 L2 Cache bits */
+#define L2CACHE_512KB   0x00    /* 512KB */
+#define L2CACHE_256KB   0x01    /* 256KB */
+#define L2CACHE_1MB     0x02    /* 1MB */
+#define L2CACHE_NONE    0x03    /* NONE */
+#define L2CACHE_PARITY  0x08    /* Mask for L2 Cache Parity Protected bit */
+
 TODC_ALLOC();
 
 unsigned char ucSystemType;