powerpc: Fixes to get the merged kernel to boot on powermac.

This merges ppc_ksyms.c, puts back the actual do_execve call in
sys_execve, makes init_MMU call find_end_of_memory rather than
ppc_md.find_end_of_memory (every platform has a device tree
with a /memory node now, right?) and fixes some problems with the
mpic initialization on newworld powermacs.

Signed-off-by: Paul Mackerras <paulus@samba.org>

5 files changed, 359 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 62c4a51a23d..58c130b10ec 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -14,5 +14,5 @@ extra-$(CONFIG_PPC_FPU)		+= fpu.o
 extra-y				+= vmlinux.lds
 
 obj-y				:= semaphore.o traps.o process.o
-
+obj-$(CONFIG_MODULES)		+= ppc_ksyms.o
 obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
new file mode 100644
index 00000000000..7bfa0f0121f
--- /dev/null
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -0,0 +1,338 @@
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/threads.h>
+#include <linux/smp.h>
+#include <linux/sched.h>
+#include <linux/elfcore.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/tty.h>
+#include <linux/vt_kern.h>
+#include <linux/nvram.h>
+#include <linux/console.h>
+#include <linux/irq.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/ide.h>
+#include <linux/pm.h>
+#include <linux/bitops.h>
+
+#include <asm/page.h>
+#include <asm/semaphore.h>
+#include <asm/processor.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/ide.h>
+#include <asm/atomic.h>
+#include <asm/checksum.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+#include <linux/adb.h>
+#include <linux/cuda.h>
+#include <linux/pmu.h>
+#include <asm/prom.h>
+#include <asm/system.h>
+#include <asm/pci-bridge.h>
+#include <asm/irq.h>
+#include <asm/pmac_feature.h>
+#include <asm/dma.h>
+#include <asm/machdep.h>
+#include <asm/hw_irq.h>
+#include <asm/nvram.h>
+#include <asm/mmu_context.h>
+#include <asm/backlight.h>
+#include <asm/time.h>
+#include <asm/cputable.h>
+#include <asm/btext.h>
+#include <asm/div64.h>
+#include <asm/xmon.h>
+
+#ifdef  CONFIG_8xx
+#include <asm/commproc.h>
+#endif
+
+extern void transfer_to_handler(void);
+extern void do_IRQ(struct pt_regs *regs);
+extern void MachineCheckException(struct pt_regs *regs);
+extern void AlignmentException(struct pt_regs *regs);
+extern void ProgramCheckException(struct pt_regs *regs);
+extern void SingleStepException(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);
+
+long long __ashrdi3(long long, int);
+long long __ashldi3(long long, int);
+long long __lshrdi3(long long, int);
+
+extern unsigned long mm_ptov (unsigned long paddr);
+
+EXPORT_SYMBOL(clear_pages);
+EXPORT_SYMBOL(clear_user_page);
+EXPORT_SYMBOL(do_signal);
+EXPORT_SYMBOL(transfer_to_handler);
+EXPORT_SYMBOL(do_IRQ);
+EXPORT_SYMBOL(MachineCheckException);
+EXPORT_SYMBOL(AlignmentException);
+EXPORT_SYMBOL(ProgramCheckException);
+EXPORT_SYMBOL(SingleStepException);
+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);
+EXPORT_SYMBOL(DMA_MODE_WRITE);
+#if defined(CONFIG_PPC_PREP)
+EXPORT_SYMBOL(_prep_type);
+EXPORT_SYMBOL(ucSystemType);
+#endif
+
+#if !defined(__INLINE_BITOPS)
+EXPORT_SYMBOL(set_bit);
+EXPORT_SYMBOL(clear_bit);
+EXPORT_SYMBOL(change_bit);
+EXPORT_SYMBOL(test_and_set_bit);
+EXPORT_SYMBOL(test_and_clear_bit);
+EXPORT_SYMBOL(test_and_change_bit);
+#endif /* __INLINE_BITOPS */
+
+EXPORT_SYMBOL(strcpy);
+EXPORT_SYMBOL(strncpy);
+EXPORT_SYMBOL(strcat);
+EXPORT_SYMBOL(strncat);
+EXPORT_SYMBOL(strchr);
+EXPORT_SYMBOL(strrchr);
+EXPORT_SYMBOL(strpbrk);
+EXPORT_SYMBOL(strstr);
+EXPORT_SYMBOL(strlen);
+EXPORT_SYMBOL(strnlen);
+EXPORT_SYMBOL(strcmp);
+EXPORT_SYMBOL(strncmp);
+EXPORT_SYMBOL(strcasecmp);
+EXPORT_SYMBOL(__div64_32);
+
+EXPORT_SYMBOL(csum_partial);
+EXPORT_SYMBOL(csum_partial_copy_generic);
+EXPORT_SYMBOL(ip_fast_csum);
+EXPORT_SYMBOL(csum_tcpudp_magic);
+
+EXPORT_SYMBOL(__copy_tofrom_user);
+EXPORT_SYMBOL(__clear_user);
+EXPORT_SYMBOL(__strncpy_from_user);
+EXPORT_SYMBOL(__strnlen_user);
+
+EXPORT_SYMBOL(_insb);
+EXPORT_SYMBOL(_outsb);
+EXPORT_SYMBOL(_insw);
+EXPORT_SYMBOL(_outsw);
+EXPORT_SYMBOL(_insl);
+EXPORT_SYMBOL(_outsl);
+EXPORT_SYMBOL(_insw_ns);
+EXPORT_SYMBOL(_outsw_ns);
+EXPORT_SYMBOL(_insl_ns);
+EXPORT_SYMBOL(_outsl_ns);
+EXPORT_SYMBOL(iopa);
+EXPORT_SYMBOL(mm_ptov);
+EXPORT_SYMBOL(ioremap);
+#ifdef CONFIG_44x
+EXPORT_SYMBOL(ioremap64);
+#endif
+EXPORT_SYMBOL(__ioremap);
+EXPORT_SYMBOL(iounmap);
+EXPORT_SYMBOL(ioremap_bot);	/* aka VMALLOC_END */
+
+#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
+EXPORT_SYMBOL(ppc_ide_md);
+#endif
+
+#ifdef CONFIG_PCI
+EXPORT_SYMBOL(isa_io_base);
+EXPORT_SYMBOL(isa_mem_base);
+EXPORT_SYMBOL(pci_dram_offset);
+EXPORT_SYMBOL(pci_alloc_consistent);
+EXPORT_SYMBOL(pci_free_consistent);
+EXPORT_SYMBOL(pci_bus_io_base);
+EXPORT_SYMBOL(pci_bus_io_base_phys);
+EXPORT_SYMBOL(pci_bus_mem_base_phys);
+EXPORT_SYMBOL(pci_bus_to_hose);
+EXPORT_SYMBOL(pci_resource_to_bus);
+EXPORT_SYMBOL(pci_phys_to_bus);
+EXPORT_SYMBOL(pci_bus_to_phys);
+#endif /* CONFIG_PCI */
+
+#ifdef CONFIG_NOT_COHERENT_CACHE
+EXPORT_SYMBOL(flush_dcache_all);
+#endif
+
+EXPORT_SYMBOL(start_thread);
+EXPORT_SYMBOL(kernel_thread);
+
+EXPORT_SYMBOL(flush_instruction_cache);
+EXPORT_SYMBOL(giveup_fpu);
+#ifdef CONFIG_PPC64
+EXPORT_SYMBOL(__flush_icache_range);
+#else
+EXPORT_SYMBOL(flush_icache_range);
+#endif
+EXPORT_SYMBOL(flush_dcache_range);
+EXPORT_SYMBOL(flush_icache_user_range);
+EXPORT_SYMBOL(flush_dcache_page);
+EXPORT_SYMBOL(flush_tlb_kernel_range);
+EXPORT_SYMBOL(flush_tlb_page);
+EXPORT_SYMBOL(_tlbie);
+#ifdef CONFIG_ALTIVEC
+EXPORT_SYMBOL(last_task_used_altivec);
+EXPORT_SYMBOL(giveup_altivec);
+#endif /* CONFIG_ALTIVEC */
+#ifdef CONFIG_SPE
+EXPORT_SYMBOL(last_task_used_spe);
+EXPORT_SYMBOL(giveup_spe);
+#endif /* CONFIG_SPE */
+#ifdef CONFIG_SMP
+EXPORT_SYMBOL(smp_call_function);
+EXPORT_SYMBOL(smp_hw_index);
+#endif
+
+EXPORT_SYMBOL(ppc_md);
+
+#ifdef CONFIG_ADB
+EXPORT_SYMBOL(adb_request);
+EXPORT_SYMBOL(adb_register);
+EXPORT_SYMBOL(adb_unregister);
+EXPORT_SYMBOL(adb_poll);
+EXPORT_SYMBOL(adb_try_handler_change);
+#endif /* CONFIG_ADB */
+#ifdef CONFIG_ADB_CUDA
+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);
+#endif
+#ifdef CONFIG_PPC_OF
+EXPORT_SYMBOL(find_devices);
+EXPORT_SYMBOL(find_type_devices);
+EXPORT_SYMBOL(find_compatible_devices);
+EXPORT_SYMBOL(find_path_device);
+EXPORT_SYMBOL(device_is_compatible);
+EXPORT_SYMBOL(machine_is_compatible);
+EXPORT_SYMBOL(find_all_nodes);
+EXPORT_SYMBOL(get_property);
+EXPORT_SYMBOL(request_OF_resource);
+EXPORT_SYMBOL(release_OF_resource);
+EXPORT_SYMBOL(pci_busdev_to_OF_node);
+EXPORT_SYMBOL(pci_device_to_OF_node);
+EXPORT_SYMBOL(pci_device_from_OF_node);
+EXPORT_SYMBOL(of_find_node_by_name);
+EXPORT_SYMBOL(of_find_node_by_type);
+EXPORT_SYMBOL(of_find_compatible_node);
+EXPORT_SYMBOL(of_find_node_by_path);
+EXPORT_SYMBOL(of_find_all_nodes);
+EXPORT_SYMBOL(of_get_parent);
+EXPORT_SYMBOL(of_get_next_child);
+EXPORT_SYMBOL(of_node_get);
+EXPORT_SYMBOL(of_node_put);
+#endif /* CONFIG_PPC_OF */
+#if defined(CONFIG_BOOTX_TEXT)
+EXPORT_SYMBOL(btext_update_display);
+#endif
+#if defined(CONFIG_SCSI) && defined(CONFIG_PPC_PMAC)
+EXPORT_SYMBOL(note_scsi_host);
+#endif
+#ifdef CONFIG_VT
+EXPORT_SYMBOL(kd_mksound);
+#endif
+EXPORT_SYMBOL(to_tm);
+
+EXPORT_SYMBOL(pm_power_off);
+
+EXPORT_SYMBOL(__ashrdi3);
+EXPORT_SYMBOL(__ashldi3);
+EXPORT_SYMBOL(__lshrdi3);
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(cacheable_memcpy);
+EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(memmove);
+EXPORT_SYMBOL(memscan);
+EXPORT_SYMBOL(memcmp);
+EXPORT_SYMBOL(memchr);
+
+#if defined(CONFIG_FB_VGA16_MODULE)
+EXPORT_SYMBOL(screen_info);
+#endif
+
+EXPORT_SYMBOL(__delay);
+EXPORT_SYMBOL(timer_interrupt);
+EXPORT_SYMBOL(irq_desc);
+EXPORT_SYMBOL(tb_ticks_per_jiffy);
+EXPORT_SYMBOL(get_wchan);
+EXPORT_SYMBOL(console_drivers);
+
+#ifdef CONFIG_PPC_ISERIES
+EXPORT_SYMBOL(local_irq_disable);
+EXPORT_SYMBOL(local_irq_enable);
+EXPORT_SYMBOL(local_get_flags);
+#endif
+
+#ifdef CONFIG_XMON
+EXPORT_SYMBOL(xmon);
+EXPORT_SYMBOL(xmon_printf);
+#endif
+EXPORT_SYMBOL(__up);
+EXPORT_SYMBOL(__down);
+EXPORT_SYMBOL(__down_interruptible);
+
+#if defined(CONFIG_KGDB) || defined(CONFIG_XMON)
+extern void (*debugger)(struct pt_regs *regs);
+extern int (*debugger_bpt)(struct pt_regs *regs);
+extern int (*debugger_sstep)(struct pt_regs *regs);
+extern int (*debugger_iabr_match)(struct pt_regs *regs);
+extern int (*debugger_dabr_match)(struct pt_regs *regs);
+extern void (*debugger_fault_handler)(struct pt_regs *regs);
+
+EXPORT_SYMBOL(debugger);
+EXPORT_SYMBOL(debugger_bpt);
+EXPORT_SYMBOL(debugger_sstep);
+EXPORT_SYMBOL(debugger_iabr_match);
+EXPORT_SYMBOL(debugger_dabr_match);
+EXPORT_SYMBOL(debugger_fault_handler);
+#endif
+
+#ifdef  CONFIG_8xx
+EXPORT_SYMBOL(cpm_install_handler);
+EXPORT_SYMBOL(cpm_free_handler);
+#endif /* CONFIG_8xx */
+#if defined(CONFIG_8xx) || defined(CONFIG_40x) || defined(CONFIG_85xx) ||\
+	defined(CONFIG_83xx)
+EXPORT_SYMBOL(__res);
+#endif
+
+EXPORT_SYMBOL(next_mmu_context);
+EXPORT_SYMBOL(set_context);
+EXPORT_SYMBOL_GPL(__handle_mm_fault); /* For MOL */
+EXPORT_SYMBOL(disarm_decr);
+#ifdef CONFIG_PPC_STD_MMU
+extern long mol_trampoline;
+EXPORT_SYMBOL(mol_trampoline); /* For MOL */
+EXPORT_SYMBOL(flush_hash_pages); /* For MOL */
+#ifdef CONFIG_SMP
+extern int mmu_hash_lock;
+EXPORT_SYMBOL(mmu_hash_lock); /* For MOL */
+#endif /* CONFIG_SMP */
+extern long *intercept_table;
+EXPORT_SYMBOL(intercept_table);
+#endif /* CONFIG_PPC_STD_MMU */
+EXPORT_SYMBOL(cur_cpu_spec);
+#ifdef CONFIG_PPC_PMAC
+extern unsigned long agp_special_page;
+EXPORT_SYMBOL(agp_special_page);
+#endif
+#if defined(CONFIG_40x) || defined(CONFIG_BOOKE)
+EXPORT_SYMBOL(__mtdcr);
+EXPORT_SYMBOL(__mfdcr);
+#endif
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index f5a9d2a84fa..e3946769dd8 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -601,6 +601,8 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
 	flush_fp_to_thread(current);
 	flush_altivec_to_thread(current);
 	flush_spe_to_thread(current);
+	error = do_execve(filename, (char __user * __user *) a1,
+			  (char __user * __user *) a2, regs);
 	if (error == 0) {
 		task_lock(current);
 		current->ptrace &= ~PT_DTRACE;
diff --git a/arch/powerpc/mm/init.c b/arch/powerpc/mm/init.c
index f4d983a6e52..3a81ef15c67 100644
--- a/arch/powerpc/mm/init.c
+++ b/arch/powerpc/mm/init.c
@@ -239,7 +239,7 @@ void __init MMU_init(void)
 	if (boot_mem_size)
 		total_memory = boot_mem_size;
 	else
-		total_memory = ppc_md.find_end_of_memory();
+		total_memory = find_end_of_memory();
 
 	if (__max_memory && total_memory > __max_memory)
 		total_memory = __max_memory;
diff --git a/arch/powerpc/platforms/powermac/pmac_pic.c b/arch/powerpc/platforms/powermac/pmac_pic.c
index bf3e1899a4c..a6b1b577e19 100644
--- a/arch/powerpc/platforms/powermac/pmac_pic.c
+++ b/arch/powerpc/platforms/powermac/pmac_pic.c
@@ -424,6 +424,8 @@ void __init pmac_pic_init(void)
 
 		printk(KERN_INFO "PowerMac using OpenPIC irq controller at 0x%08x\n",
 		       (unsigned int)irqctrler->addrs[0].address);
+		ppc_md.get_irq = mpic_get_irq;
+		pmac_call_feature(PMAC_FTR_ENABLE_MPIC, irqctrler, 0, 0);
 
 		prom_get_irq_senses(senses, 0, 128);
 		mpic1 = mpic_alloc(irqctrler->addrs[0].address,
@@ -452,7 +454,22 @@ void __init pmac_pic_init(void)
 			mpic_setup_cascade(irqctrler2->intrs[0].line,
 					   pmac_u3_cascade, mpic2);
 		}
+#ifdef CONFIG_XMON
+		{
+			struct device_node* pswitch;
+			int nmi_irq;
+
+			pswitch = find_devices("programmer-switch");
+			if (pswitch && pswitch->n_intrs) {
+				nmi_irq = pswitch->intrs[0].line;
+				openpic_init_nmi_irq(nmi_irq);
+				setup_irq(nmi_irq, &xmon_action);
+			}
+		}
+#endif	/* CONFIG_XMON */
+		return;
 	}
+	irqctrler = NULL;
 
 	/* Get the level/edge settings, assume if it's not
 	 * a Grand Central nor an OHare, then it's an Heathrow