138 files changed, 457 insertions, 318 deletions

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 2bd1f6ef5db..644a70b1b04 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -9,6 +9,8 @@ config PARISC
 	def_bool y
 	select HAVE_IDE
 	select HAVE_OPROFILE
+	select RTC_CLASS
+	select RTC_DRV_PARISC
 	help
 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
 	  in many of their workstations & servers (HP9000 700 and 800 series,
diff --git a/include/asm-parisc/Kbuild b/arch/parisc/include/asm/Kbuild
index f88b252e419..f88b252e419 100644
--- a/include/asm-parisc/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
diff --git a/include/asm-parisc/agp.h b/arch/parisc/include/asm/agp.h
index 9651660da63..9651660da63 100644
--- a/include/asm-parisc/agp.h
+++ b/arch/parisc/include/asm/agp.h
diff --git a/include/asm-parisc/asmregs.h b/arch/parisc/include/asm/asmregs.h
index d93c646e188..d93c646e188 100644
--- a/include/asm-parisc/asmregs.h
+++ b/arch/parisc/include/asm/asmregs.h
diff --git a/include/asm-parisc/assembly.h b/arch/parisc/include/asm/assembly.h
index ffb208840ec..ffb208840ec 100644
--- a/include/asm-parisc/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
diff --git a/include/asm-parisc/atomic.h b/arch/parisc/include/asm/atomic.h
index 57fcc4a5ebb..57fcc4a5ebb 100644
--- a/include/asm-parisc/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
diff --git a/include/asm-parisc/auxvec.h b/arch/parisc/include/asm/auxvec.h
index 9c3ac4b89dc..9c3ac4b89dc 100644
--- a/include/asm-parisc/auxvec.h
+++ b/arch/parisc/include/asm/auxvec.h
diff --git a/include/asm-parisc/bitops.h b/arch/parisc/include/asm/bitops.h
index 7a6ea10bd23..7a6ea10bd23 100644
--- a/include/asm-parisc/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
diff --git a/include/asm-parisc/bug.h b/arch/parisc/include/asm/bug.h
index 8cfc553fc83..8cfc553fc83 100644
--- a/include/asm-parisc/bug.h
+++ b/arch/parisc/include/asm/bug.h
diff --git a/include/asm-parisc/bugs.h b/arch/parisc/include/asm/bugs.h
index 9e6284342a5..9e6284342a5 100644
--- a/include/asm-parisc/bugs.h
+++ b/arch/parisc/include/asm/bugs.h
diff --git a/include/asm-parisc/byteorder.h b/arch/parisc/include/asm/byteorder.h
index db148313de5..db148313de5 100644
--- a/include/asm-parisc/byteorder.h
+++ b/arch/parisc/include/asm/byteorder.h
diff --git a/include/asm-parisc/cache.h b/arch/parisc/include/asm/cache.h
index 32c2cca7434..32c2cca7434 100644
--- a/include/asm-parisc/cache.h
+++ b/arch/parisc/include/asm/cache.h
diff --git a/include/asm-parisc/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index b7ca6dc7fdd..b7ca6dc7fdd 100644
--- a/include/asm-parisc/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
diff --git a/include/asm-parisc/checksum.h b/arch/parisc/include/asm/checksum.h
index e9639ccc3fc..e9639ccc3fc 100644
--- a/include/asm-parisc/checksum.h
+++ b/arch/parisc/include/asm/checksum.h
diff --git a/include/asm-parisc/compat.h b/arch/parisc/include/asm/compat.h
index 7f32611a7a5..7f32611a7a5 100644
--- a/include/asm-parisc/compat.h
+++ b/arch/parisc/include/asm/compat.h
diff --git a/include/asm-parisc/compat_rt_sigframe.h b/arch/parisc/include/asm/compat_rt_sigframe.h
index 81bec28bdc4..81bec28bdc4 100644
--- a/include/asm-parisc/compat_rt_sigframe.h
+++ b/arch/parisc/include/asm/compat_rt_sigframe.h
diff --git a/include/asm-parisc/compat_signal.h b/arch/parisc/include/asm/compat_signal.h
index 6ad02c360b2..6ad02c360b2 100644
--- a/include/asm-parisc/compat_signal.h
+++ b/arch/parisc/include/asm/compat_signal.h
diff --git a/include/asm-parisc/compat_ucontext.h b/arch/parisc/include/asm/compat_ucontext.h
index 2f7292afde3..2f7292afde3 100644
--- a/include/asm-parisc/compat_ucontext.h
+++ b/arch/parisc/include/asm/compat_ucontext.h
diff --git a/include/asm-parisc/cputime.h b/arch/parisc/include/asm/cputime.h
index dcdf2fbd7e7..dcdf2fbd7e7 100644
--- a/include/asm-parisc/cputime.h
+++ b/arch/parisc/include/asm/cputime.h
diff --git a/include/asm-parisc/current.h b/arch/parisc/include/asm/current.h
index 0fb9338e3bf..0fb9338e3bf 100644
--- a/include/asm-parisc/current.h
+++ b/arch/parisc/include/asm/current.h
diff --git a/include/asm-parisc/delay.h b/arch/parisc/include/asm/delay.h
index 7a75e984674..7a75e984674 100644
--- a/include/asm-parisc/delay.h
+++ b/arch/parisc/include/asm/delay.h
diff --git a/include/asm-parisc/device.h b/arch/parisc/include/asm/device.h
index d8f9872b0e2..d8f9872b0e2 100644
--- a/include/asm-parisc/device.h
+++ b/arch/parisc/include/asm/device.h
diff --git a/include/asm-parisc/div64.h b/arch/parisc/include/asm/div64.h
index 6cd978cefb2..6cd978cefb2 100644
--- a/include/asm-parisc/div64.h
+++ b/arch/parisc/include/asm/div64.h
diff --git a/include/asm-parisc/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 53af696f23d..53af696f23d 100644
--- a/include/asm-parisc/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
diff --git a/include/asm-parisc/dma.h b/arch/parisc/include/asm/dma.h
index 31ad0f05af3..31ad0f05af3 100644
--- a/include/asm-parisc/dma.h
+++ b/arch/parisc/include/asm/dma.h
diff --git a/include/asm-parisc/eisa_bus.h b/arch/parisc/include/asm/eisa_bus.h
index 201085f83dd..201085f83dd 100644
--- a/include/asm-parisc/eisa_bus.h
+++ b/arch/parisc/include/asm/eisa_bus.h
diff --git a/include/asm-parisc/eisa_eeprom.h b/arch/parisc/include/asm/eisa_eeprom.h
index 9c9da980402..9c9da980402 100644
--- a/include/asm-parisc/eisa_eeprom.h
+++ b/arch/parisc/include/asm/eisa_eeprom.h
diff --git a/include/asm-parisc/elf.h b/arch/parisc/include/asm/elf.h
index 7fa675799e6..7fa675799e6 100644
--- a/include/asm-parisc/elf.h
+++ b/arch/parisc/include/asm/elf.h
diff --git a/include/asm-parisc/emergency-restart.h b/arch/parisc/include/asm/emergency-restart.h
index 108d8c48e42..108d8c48e42 100644
--- a/include/asm-parisc/emergency-restart.h
+++ b/arch/parisc/include/asm/emergency-restart.h
diff --git a/include/asm-parisc/errno.h b/arch/parisc/include/asm/errno.h
index e2f3ddc796b..e2f3ddc796b 100644
--- a/include/asm-parisc/errno.h
+++ b/arch/parisc/include/asm/errno.h
diff --git a/include/asm-parisc/fb.h b/arch/parisc/include/asm/fb.h
index 4d503a023ab..4d503a023ab 100644
--- a/include/asm-parisc/fb.h
+++ b/arch/parisc/include/asm/fb.h
diff --git a/include/asm-parisc/fcntl.h b/arch/parisc/include/asm/fcntl.h
index 1e1c824764e..1e1c824764e 100644
--- a/include/asm-parisc/fcntl.h
+++ b/arch/parisc/include/asm/fcntl.h
diff --git a/include/asm-parisc/fixmap.h b/arch/parisc/include/asm/fixmap.h
index de3fe3a1822..de3fe3a1822 100644
--- a/include/asm-parisc/fixmap.h
+++ b/arch/parisc/include/asm/fixmap.h
diff --git a/include/asm-parisc/floppy.h b/arch/parisc/include/asm/floppy.h
index 4ca69f558fa..4ca69f558fa 100644
--- a/include/asm-parisc/floppy.h
+++ b/arch/parisc/include/asm/floppy.h
diff --git a/include/asm-parisc/futex.h b/arch/parisc/include/asm/futex.h
index 0c705c3a55e..0c705c3a55e 100644
--- a/include/asm-parisc/futex.h
+++ b/arch/parisc/include/asm/futex.h
diff --git a/include/asm-parisc/grfioctl.h b/arch/parisc/include/asm/grfioctl.h
index 671e06042b4..671e06042b4 100644
--- a/include/asm-parisc/grfioctl.h
+++ b/arch/parisc/include/asm/grfioctl.h
diff --git a/include/asm-parisc/hardirq.h b/arch/parisc/include/asm/hardirq.h
index ce93133d511..ce93133d511 100644
--- a/include/asm-parisc/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
diff --git a/include/asm-parisc/hardware.h b/arch/parisc/include/asm/hardware.h
index 4e9626836ba..4e9626836ba 100644
--- a/include/asm-parisc/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
diff --git a/include/asm-parisc/hw_irq.h b/arch/parisc/include/asm/hw_irq.h
index 6707f7df392..6707f7df392 100644
--- a/include/asm-parisc/hw_irq.h
+++ b/arch/parisc/include/asm/hw_irq.h
diff --git a/include/asm-parisc/ide.h b/arch/parisc/include/asm/ide.h
index 81700a2321c..81700a2321c 100644
--- a/include/asm-parisc/ide.h
+++ b/arch/parisc/include/asm/ide.h
diff --git a/include/asm-parisc/io.h b/arch/parisc/include/asm/io.h
index 55ddb184210..55ddb184210 100644
--- a/include/asm-parisc/io.h
+++ b/arch/parisc/include/asm/io.h
diff --git a/include/asm-parisc/ioctl.h b/arch/parisc/include/asm/ioctl.h
index ec8efa02bed..ec8efa02bed 100644
--- a/include/asm-parisc/ioctl.h
+++ b/arch/parisc/include/asm/ioctl.h
diff --git a/include/asm-parisc/ioctls.h b/arch/parisc/include/asm/ioctls.h
index 6747fad07a3..6747fad07a3 100644
--- a/include/asm-parisc/ioctls.h
+++ b/arch/parisc/include/asm/ioctls.h
diff --git a/include/asm-parisc/ipcbuf.h b/arch/parisc/include/asm/ipcbuf.h
index bd956c42578..bd956c42578 100644
--- a/include/asm-parisc/ipcbuf.h
+++ b/arch/parisc/include/asm/ipcbuf.h
diff --git a/include/asm-parisc/irq.h b/arch/parisc/include/asm/irq.h
index 399c81981ed..399c81981ed 100644
--- a/include/asm-parisc/irq.h
+++ b/arch/parisc/include/asm/irq.h
diff --git a/include/asm-parisc/irq_regs.h b/arch/parisc/include/asm/irq_regs.h
index 3dd9c0b7027..3dd9c0b7027 100644
--- a/include/asm-parisc/irq_regs.h
+++ b/arch/parisc/include/asm/irq_regs.h
diff --git a/include/asm-parisc/kdebug.h b/arch/parisc/include/asm/kdebug.h
index 6ece1b03766..6ece1b03766 100644
--- a/include/asm-parisc/kdebug.h
+++ b/arch/parisc/include/asm/kdebug.h
diff --git a/include/asm-parisc/kmap_types.h b/arch/parisc/include/asm/kmap_types.h
index 806aae3c533..806aae3c533 100644
--- a/include/asm-parisc/kmap_types.h
+++ b/arch/parisc/include/asm/kmap_types.h
diff --git a/include/asm-parisc/led.h b/arch/parisc/include/asm/led.h
index c3405ab9d60..c3405ab9d60 100644
--- a/include/asm-parisc/led.h
+++ b/arch/parisc/include/asm/led.h
diff --git a/include/asm-parisc/linkage.h b/arch/parisc/include/asm/linkage.h
index 0b19a7242d0..0b19a7242d0 100644
--- a/include/asm-parisc/linkage.h
+++ b/arch/parisc/include/asm/linkage.h
diff --git a/include/asm-parisc/local.h b/arch/parisc/include/asm/local.h
index c11c530f74d..c11c530f74d 100644
--- a/include/asm-parisc/local.h
+++ b/arch/parisc/include/asm/local.h
diff --git a/include/asm-parisc/machdep.h b/arch/parisc/include/asm/machdep.h
index a231c97d703..a231c97d703 100644
--- a/include/asm-parisc/machdep.h
+++ b/arch/parisc/include/asm/machdep.h
diff --git a/include/asm-parisc/mc146818rtc.h b/arch/parisc/include/asm/mc146818rtc.h
index adf41631449..adf41631449 100644
--- a/include/asm-parisc/mc146818rtc.h
+++ b/arch/parisc/include/asm/mc146818rtc.h
diff --git a/include/asm-parisc/mckinley.h b/arch/parisc/include/asm/mckinley.h
index d1ea6f12915..d1ea6f12915 100644
--- a/include/asm-parisc/mckinley.h
+++ b/arch/parisc/include/asm/mckinley.h
diff --git a/include/asm-parisc/mman.h b/arch/parisc/include/asm/mman.h
index defe752cc99..defe752cc99 100644
--- a/include/asm-parisc/mman.h
+++ b/arch/parisc/include/asm/mman.h
diff --git a/include/asm-parisc/mmu.h b/arch/parisc/include/asm/mmu.h
index 6a310cf8b73..6a310cf8b73 100644
--- a/include/asm-parisc/mmu.h
+++ b/arch/parisc/include/asm/mmu.h
diff --git a/include/asm-parisc/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
index 85856c74ad1..85856c74ad1 100644
--- a/include/asm-parisc/mmu_context.h
+++ b/arch/parisc/include/asm/mmu_context.h
diff --git a/include/asm-parisc/mmzone.h b/arch/parisc/include/asm/mmzone.h
index 9608d2cf214..9608d2cf214 100644
--- a/include/asm-parisc/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
diff --git a/include/asm-parisc/module.h b/arch/parisc/include/asm/module.h
index c2cb49e934c..c2cb49e934c 100644
--- a/include/asm-parisc/module.h
+++ b/arch/parisc/include/asm/module.h
diff --git a/include/asm-parisc/msgbuf.h b/arch/parisc/include/asm/msgbuf.h
index fe88f264941..fe88f264941 100644
--- a/include/asm-parisc/msgbuf.h
+++ b/arch/parisc/include/asm/msgbuf.h
diff --git a/include/asm-parisc/mutex.h b/arch/parisc/include/asm/mutex.h
index 458c1f7fbc1..458c1f7fbc1 100644
--- a/include/asm-parisc/mutex.h
+++ b/arch/parisc/include/asm/mutex.h
diff --git a/include/asm-parisc/page.h b/arch/parisc/include/asm/page.h
index c3941f09a87..c3941f09a87 100644
--- a/include/asm-parisc/page.h
+++ b/arch/parisc/include/asm/page.h
diff --git a/include/asm-parisc/param.h b/arch/parisc/include/asm/param.h
index 32e03d87785..32e03d87785 100644
--- a/include/asm-parisc/param.h
+++ b/arch/parisc/include/asm/param.h
diff --git a/include/asm-parisc/parisc-device.h b/arch/parisc/include/asm/parisc-device.h
index 7aa13f2add7..7aa13f2add7 100644
--- a/include/asm-parisc/parisc-device.h
+++ b/arch/parisc/include/asm/parisc-device.h
diff --git a/include/asm-parisc/parport.h b/arch/parisc/include/asm/parport.h
index 00d9cc3e7b9..00d9cc3e7b9 100644
--- a/include/asm-parisc/parport.h
+++ b/arch/parisc/include/asm/parport.h
diff --git a/include/asm-parisc/pci.h b/arch/parisc/include/asm/pci.h
index 4ba868f44a5..4ba868f44a5 100644
--- a/include/asm-parisc/pci.h
+++ b/arch/parisc/include/asm/pci.h
diff --git a/include/asm-parisc/pdc.h b/arch/parisc/include/asm/pdc.h
index 9eaa794c3e4..c584b00c607 100644
--- a/include/asm-parisc/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -332,6 +332,9 @@
 #define BOOT_CONSOLE_SPA_OFFSET  0x3c4
 #define BOOT_CONSOLE_PATH_OFFSET 0x3a8
 
+/* size of the pdc_result buffer for firmware.c */
+#define NUM_PDC_RESULT	32
+
 #if !defined(__ASSEMBLY__)
 #ifdef __KERNEL__
 
@@ -600,6 +603,7 @@ int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsi
 int pdc_chassis_disp(unsigned long disp);
 int pdc_chassis_warn(unsigned long *warn);
 int pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info);
+int pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info);
 int pdc_iodc_read(unsigned long *actcnt, unsigned long hpa, unsigned int index,
 		  void *iodc_data, unsigned int iodc_data_size);
 int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info,
@@ -638,6 +642,7 @@ int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
 #endif
 
 void set_firmware_width(void);
+void set_firmware_width_unlocked(void);
 int pdc_do_firm_test_reset(unsigned long ftc_bitmap);
 int pdc_do_reset(void);
 int pdc_soft_power_info(unsigned long *power_reg);
diff --git a/include/asm-parisc/pdc_chassis.h b/arch/parisc/include/asm/pdc_chassis.h
index a609273dc6b..a609273dc6b 100644
--- a/include/asm-parisc/pdc_chassis.h
+++ b/arch/parisc/include/asm/pdc_chassis.h
diff --git a/include/asm-parisc/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index 47539f11795..47539f11795 100644
--- a/include/asm-parisc/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
diff --git a/include/asm-parisc/percpu.h b/arch/parisc/include/asm/percpu.h
index a0dcd197012..a0dcd197012 100644
--- a/include/asm-parisc/percpu.h
+++ b/arch/parisc/include/asm/percpu.h
diff --git a/include/asm-parisc/perf.h b/arch/parisc/include/asm/perf.h
index a18e11972c0..a18e11972c0 100644
--- a/include/asm-parisc/perf.h
+++ b/arch/parisc/include/asm/perf.h
diff --git a/include/asm-parisc/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index fc987a1c12a..fc987a1c12a 100644
--- a/include/asm-parisc/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
diff --git a/include/asm-parisc/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 470a4b88124..470a4b88124 100644
--- a/include/asm-parisc/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
diff --git a/include/asm-parisc/poll.h b/arch/parisc/include/asm/poll.h
index c98509d3149..c98509d3149 100644
--- a/include/asm-parisc/poll.h
+++ b/arch/parisc/include/asm/poll.h
diff --git a/include/asm-parisc/posix_types.h b/arch/parisc/include/asm/posix_types.h
index bb725a6630b..bb725a6630b 100644
--- a/include/asm-parisc/posix_types.h
+++ b/arch/parisc/include/asm/posix_types.h
diff --git a/include/asm-parisc/prefetch.h b/arch/parisc/include/asm/prefetch.h
index c5edc60c059..c5edc60c059 100644
--- a/include/asm-parisc/prefetch.h
+++ b/arch/parisc/include/asm/prefetch.h
diff --git a/include/asm-parisc/processor.h b/arch/parisc/include/asm/processor.h
index 3c9d34844c8..3c9d34844c8 100644
--- a/include/asm-parisc/processor.h
+++ b/arch/parisc/include/asm/processor.h
diff --git a/include/asm-parisc/psw.h b/arch/parisc/include/asm/psw.h
index 5a3e23c9ce6..5a3e23c9ce6 100644
--- a/include/asm-parisc/psw.h
+++ b/arch/parisc/include/asm/psw.h
diff --git a/include/asm-parisc/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 3e94c5d85ff..afa5333187b 100644
--- a/include/asm-parisc/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -47,6 +47,16 @@ struct pt_regs {
 
 #define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS))
 
+#define __ARCH_WANT_COMPAT_SYS_PTRACE
+
+struct task_struct;
+#define arch_has_single_step()	1
+void user_disable_single_step(struct task_struct *task);
+void user_enable_single_step(struct task_struct *task);
+
+#define arch_has_block_step()	1
+void user_enable_block_step(struct task_struct *task);
+
 /* XXX should we use iaoq[1] or iaoq[0] ? */
 #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
 #define user_space(regs)		(((regs)->iasq[1] != 0) ? 1 : 0)
diff --git a/include/asm-parisc/real.h b/arch/parisc/include/asm/real.h
index 82acb25db39..82acb25db39 100644
--- a/include/asm-parisc/real.h
+++ b/arch/parisc/include/asm/real.h
diff --git a/include/asm-parisc/resource.h b/arch/parisc/include/asm/resource.h
index 8b06343b62e..8b06343b62e 100644
--- a/include/asm-parisc/resource.h
+++ b/arch/parisc/include/asm/resource.h
diff --git a/include/asm-parisc/ropes.h b/arch/parisc/include/asm/ropes.h
index 007a880615e..09f51d5ab57 100644
--- a/include/asm-parisc/ropes.h
+++ b/arch/parisc/include/asm/ropes.h
@@ -1,7 +1,7 @@
 #ifndef _ASM_PARISC_ROPES_H_
 #define _ASM_PARISC_ROPES_H_
 
-#include <asm-parisc/parisc-device.h>
+#include <asm/parisc-device.h>
 
 #ifdef CONFIG_64BIT
 /* "low end" PA8800 machines use ZX1 chipset: PAT PDC and only run 64-bit */
diff --git a/include/asm-parisc/rt_sigframe.h b/arch/parisc/include/asm/rt_sigframe.h
index f0dd3b30f6c..f0dd3b30f6c 100644
--- a/include/asm-parisc/rt_sigframe.h
+++ b/arch/parisc/include/asm/rt_sigframe.h
diff --git a/include/asm-parisc/rtc.h b/arch/parisc/include/asm/rtc.h
index 099d641a42c..099d641a42c 100644
--- a/include/asm-parisc/rtc.h
+++ b/arch/parisc/include/asm/rtc.h
diff --git a/include/asm-parisc/runway.h b/arch/parisc/include/asm/runway.h
index 5bea02da7e2..5bea02da7e2 100644
--- a/include/asm-parisc/runway.h
+++ b/arch/parisc/include/asm/runway.h
diff --git a/include/asm-parisc/scatterlist.h b/arch/parisc/include/asm/scatterlist.h
index 62269b31ebf..62269b31ebf 100644
--- a/include/asm-parisc/scatterlist.h
+++ b/arch/parisc/include/asm/scatterlist.h
diff --git a/include/asm-parisc/sections.h b/arch/parisc/include/asm/sections.h
index 9d13c3507ad..9d13c3507ad 100644
--- a/include/asm-parisc/sections.h
+++ b/arch/parisc/include/asm/sections.h
diff --git a/include/asm-parisc/segment.h b/arch/parisc/include/asm/segment.h
index 26794ddb652..26794ddb652 100644
--- a/include/asm-parisc/segment.h
+++ b/arch/parisc/include/asm/segment.h
diff --git a/include/asm-parisc/sembuf.h b/arch/parisc/include/asm/sembuf.h
index 1e59ffd3bd1..1e59ffd3bd1 100644
--- a/include/asm-parisc/sembuf.h
+++ b/arch/parisc/include/asm/sembuf.h
diff --git a/include/asm-parisc/serial.h b/arch/parisc/include/asm/serial.h
index d7e3cc60dbc..d7e3cc60dbc 100644
--- a/include/asm-parisc/serial.h
+++ b/arch/parisc/include/asm/serial.h
diff --git a/include/asm-parisc/setup.h b/arch/parisc/include/asm/setup.h
index 7da2e5b8747..7da2e5b8747 100644
--- a/include/asm-parisc/setup.h
+++ b/arch/parisc/include/asm/setup.h
diff --git a/include/asm-parisc/shmbuf.h b/arch/parisc/include/asm/shmbuf.h
index 0a3eada1863..0a3eada1863 100644
--- a/include/asm-parisc/shmbuf.h
+++ b/arch/parisc/include/asm/shmbuf.h
diff --git a/include/asm-parisc/shmparam.h b/arch/parisc/include/asm/shmparam.h
index 628ddc22faa..628ddc22faa 100644
--- a/include/asm-parisc/shmparam.h
+++ b/arch/parisc/include/asm/shmparam.h
diff --git a/include/asm-parisc/sigcontext.h b/arch/parisc/include/asm/sigcontext.h
index 27ef31bb3b6..27ef31bb3b6 100644
--- a/include/asm-parisc/sigcontext.h
+++ b/arch/parisc/include/asm/sigcontext.h
diff --git a/include/asm-parisc/siginfo.h b/arch/parisc/include/asm/siginfo.h
index d7034728f37..d7034728f37 100644
--- a/include/asm-parisc/siginfo.h
+++ b/arch/parisc/include/asm/siginfo.h
diff --git a/include/asm-parisc/signal.h b/arch/parisc/include/asm/signal.h
index c20356375d1..c20356375d1 100644
--- a/include/asm-parisc/signal.h
+++ b/arch/parisc/include/asm/signal.h
diff --git a/include/asm-parisc/smp.h b/arch/parisc/include/asm/smp.h
index 398cdbaf4e5..398cdbaf4e5 100644
--- a/include/asm-parisc/smp.h
+++ b/arch/parisc/include/asm/smp.h
diff --git a/include/asm-parisc/socket.h b/arch/parisc/include/asm/socket.h
index fba402c95ac..fba402c95ac 100644
--- a/include/asm-parisc/socket.h
+++ b/arch/parisc/include/asm/socket.h
diff --git a/include/asm-parisc/sockios.h b/arch/parisc/include/asm/sockios.h
index dabfbc7483f..dabfbc7483f 100644
--- a/include/asm-parisc/sockios.h
+++ b/arch/parisc/include/asm/sockios.h
diff --git a/include/asm-parisc/spinlock.h b/arch/parisc/include/asm/spinlock.h
index f3d2090a18d..f3d2090a18d 100644
--- a/include/asm-parisc/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
diff --git a/include/asm-parisc/spinlock_types.h b/arch/parisc/include/asm/spinlock_types.h
index 3f72f47cf4b..3f72f47cf4b 100644
--- a/include/asm-parisc/spinlock_types.h
+++ b/arch/parisc/include/asm/spinlock_types.h
diff --git a/include/asm-parisc/stat.h b/arch/parisc/include/asm/stat.h
index 9d5fbbc5c31..9d5fbbc5c31 100644
--- a/include/asm-parisc/stat.h
+++ b/arch/parisc/include/asm/stat.h
diff --git a/include/asm-parisc/statfs.h b/arch/parisc/include/asm/statfs.h
index 324bea905dc..324bea905dc 100644
--- a/include/asm-parisc/statfs.h
+++ b/arch/parisc/include/asm/statfs.h
diff --git a/include/asm-parisc/string.h b/arch/parisc/include/asm/string.h
index eda01be65e3..eda01be65e3 100644
--- a/include/asm-parisc/string.h
+++ b/arch/parisc/include/asm/string.h
diff --git a/include/asm-parisc/superio.h b/arch/parisc/include/asm/superio.h
index 6598acb4d46..6598acb4d46 100644
--- a/include/asm-parisc/superio.h
+++ b/arch/parisc/include/asm/superio.h
diff --git a/include/asm-parisc/system.h b/arch/parisc/include/asm/system.h
index ee80c920b46..ee80c920b46 100644
--- a/include/asm-parisc/system.h
+++ b/arch/parisc/include/asm/system.h
diff --git a/include/asm-parisc/termbits.h b/arch/parisc/include/asm/termbits.h
index d8bbc73b16b..d8bbc73b16b 100644
--- a/include/asm-parisc/termbits.h
+++ b/arch/parisc/include/asm/termbits.h
diff --git a/include/asm-parisc/termios.h b/arch/parisc/include/asm/termios.h
index a2a57a4548a..a2a57a4548a 100644
--- a/include/asm-parisc/termios.h
+++ b/arch/parisc/include/asm/termios.h
diff --git a/include/asm-parisc/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 0407959da48..0407959da48 100644
--- a/include/asm-parisc/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
diff --git a/include/asm-parisc/timex.h b/arch/parisc/include/asm/timex.h
index 3b68d77273d..3b68d77273d 100644
--- a/include/asm-parisc/timex.h
+++ b/arch/parisc/include/asm/timex.h
diff --git a/include/asm-parisc/tlb.h b/arch/parisc/include/asm/tlb.h
index 383b1db310e..383b1db310e 100644
--- a/include/asm-parisc/tlb.h
+++ b/arch/parisc/include/asm/tlb.h
diff --git a/include/asm-parisc/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index b72ec66db69..b72ec66db69 100644
--- a/include/asm-parisc/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
diff --git a/include/asm-parisc/topology.h b/arch/parisc/include/asm/topology.h
index d8133eb0b1e..d8133eb0b1e 100644
--- a/include/asm-parisc/topology.h
+++ b/arch/parisc/include/asm/topology.h
diff --git a/include/asm-parisc/traps.h b/arch/parisc/include/asm/traps.h
index 1945f995f2d..1945f995f2d 100644
--- a/include/asm-parisc/traps.h
+++ b/arch/parisc/include/asm/traps.h
diff --git a/include/asm-parisc/types.h b/arch/parisc/include/asm/types.h
index 7f5a39bfb4c..7f5a39bfb4c 100644
--- a/include/asm-parisc/types.h
+++ b/arch/parisc/include/asm/types.h
diff --git a/include/asm-parisc/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4878b9501f2..4878b9501f2 100644
--- a/include/asm-parisc/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
diff --git a/include/asm-parisc/ucontext.h b/arch/parisc/include/asm/ucontext.h
index 6c8883e4b0b..6c8883e4b0b 100644
--- a/include/asm-parisc/ucontext.h
+++ b/arch/parisc/include/asm/ucontext.h
diff --git a/include/asm-parisc/unaligned.h b/arch/parisc/include/asm/unaligned.h
index dfc5d3321a5..dfc5d3321a5 100644
--- a/include/asm-parisc/unaligned.h
+++ b/arch/parisc/include/asm/unaligned.h
diff --git a/include/asm-parisc/unistd.h b/arch/parisc/include/asm/unistd.h
index a7d857f0e4f..ef26b009dc5 100644
--- a/include/asm-parisc/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -801,8 +801,14 @@
 #define __NR_timerfd_create	(__NR_Linux + 306)
 #define __NR_timerfd_settime	(__NR_Linux + 307)
 #define __NR_timerfd_gettime	(__NR_Linux + 308)
-
-#define __NR_Linux_syscalls	(__NR_timerfd_gettime + 1)
+#define __NR_signalfd4		(__NR_Linux + 309)
+#define __NR_eventfd2		(__NR_Linux + 310)
+#define __NR_epoll_create1	(__NR_Linux + 311)
+#define __NR_dup3		(__NR_Linux + 312)
+#define __NR_pipe2		(__NR_Linux + 313)
+#define __NR_inotify_init1	(__NR_Linux + 314)
+
+#define __NR_Linux_syscalls	(__NR_inotify_init1 + 1)
 
 
 #define __IGNORE_select		/* newselect */
diff --git a/include/asm-parisc/unwind.h b/arch/parisc/include/asm/unwind.h
index 2f7e6e50a15..52482e4fc20 100644
--- a/include/asm-parisc/unwind.h
+++ b/arch/parisc/include/asm/unwind.h
@@ -74,4 +74,6 @@ void unwind_frame_init_running(struct unwind_frame_info *info, struct pt_regs *r
 int unwind_once(struct unwind_frame_info *info);
 int unwind_to_user(struct unwind_frame_info *info);
 
+int unwind_init(void);
+
 #endif
diff --git a/include/asm-parisc/user.h b/arch/parisc/include/asm/user.h
index 80224753e50..80224753e50 100644
--- a/include/asm-parisc/user.h
+++ b/arch/parisc/include/asm/user.h
diff --git a/include/asm-parisc/vga.h b/arch/parisc/include/asm/vga.h
index 171399a88ca..171399a88ca 100644
--- a/include/asm-parisc/vga.h
+++ b/arch/parisc/include/asm/vga.h
diff --git a/include/asm-parisc/xor.h b/arch/parisc/include/asm/xor.h
index c82eb12a5b1..c82eb12a5b1 100644
--- a/include/asm-parisc/xor.h
+++ b/arch/parisc/include/asm/xor.h
diff --git a/arch/parisc/kernel/.gitignore b/arch/parisc/kernel/.gitignore
new file mode 100644
index 00000000000..c5f676c3c22
--- /dev/null
+++ b/arch/parisc/kernel/.gitignore
@@ -0,0 +1 @@
+vmlinux.lds
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index 3efc0b73e4f..699cf8ef211 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -290,5 +290,8 @@ int main(void)
 	DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip));
 	DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space));
 	DEFINE(EXCDATA_ADDR, offsetof(struct exception_data, fault_addr));
+	BLANK();
+	DEFINE(ASM_PDC_RESULT_SIZE, NUM_PDC_RESULT * sizeof(unsigned long));
+	BLANK();
 	return 0;
 }
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 7177a6cd1b7..03f26bd75bd 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -71,8 +71,8 @@
 #include <asm/processor.h>	/* for boot_cpu_data */
 
 static DEFINE_SPINLOCK(pdc_lock);
-static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
-static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
+extern unsigned long pdc_result[NUM_PDC_RESULT];
+extern unsigned long pdc_result2[NUM_PDC_RESULT];
 
 #ifdef CONFIG_64BIT
 #define WIDE_FIRMWARE 0x1
@@ -150,26 +150,40 @@ static void convert_to_wide(unsigned long *addr)
 #endif
 }
 
+#ifdef CONFIG_64BIT
+void __init set_firmware_width_unlocked(void)
+{
+	int ret;
+
+	ret = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES,
+		__pa(pdc_result), 0);
+	convert_to_wide(pdc_result);
+	if (pdc_result[0] != NARROW_FIRMWARE)
+		parisc_narrow_firmware = 0;
+}
+	
 /**
  * set_firmware_width - Determine if the firmware is wide or narrow.
  * 
- * This function must be called before any pdc_* function that uses the convert_to_wide
- * function.
+ * This function must be called before any pdc_* function that uses the
+ * convert_to_wide function.
  */
 void __init set_firmware_width(void)
 {
-#ifdef CONFIG_64BIT
-	int retval;
 	unsigned long flags;
+	spin_lock_irqsave(&pdc_lock, flags);
+	set_firmware_width_unlocked();
+	spin_unlock_irqrestore(&pdc_lock, flags);
+}
+#else
+void __init set_firmware_width_unlocked(void) {
+	return;
+}
 
-        spin_lock_irqsave(&pdc_lock, flags);
-	retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_CAPABILITIES, __pa(pdc_result), 0);
-	convert_to_wide(pdc_result);
-	if(pdc_result[0] != NARROW_FIRMWARE)
-		parisc_narrow_firmware = 0;
-        spin_unlock_irqrestore(&pdc_lock, flags);
-#endif
+void __init set_firmware_width(void) {
+	return;
 }
+#endif /*CONFIG_64BIT*/
 
 /**
  * pdc_emergency_unlock - Unlock the linux pdc lock
@@ -288,6 +302,20 @@ int pdc_chassis_warn(unsigned long *warn)
 	return retval;
 }
 
+int __init pdc_coproc_cfg_unlocked(struct pdc_coproc_cfg *pdc_coproc_info)
+{
+	int ret;
+
+	ret = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result));
+	convert_to_wide(pdc_result);
+	pdc_coproc_info->ccr_functional = pdc_result[0];
+	pdc_coproc_info->ccr_present = pdc_result[1];
+	pdc_coproc_info->revision = pdc_result[17];
+	pdc_coproc_info->model = pdc_result[18];
+
+	return ret;
+}
+
 /**
  * pdc_coproc_cfg - To identify coprocessors attached to the processor.
  * @pdc_coproc_info: Return buffer address.
@@ -297,19 +325,14 @@ int pdc_chassis_warn(unsigned long *warn)
  */
 int __init pdc_coproc_cfg(struct pdc_coproc_cfg *pdc_coproc_info)
 {
-        int retval;
+	int ret;
 	unsigned long flags;
 
-        spin_lock_irqsave(&pdc_lock, flags);
-        retval = mem_pdc_call(PDC_COPROC, PDC_COPROC_CFG, __pa(pdc_result));
-        convert_to_wide(pdc_result);
-        pdc_coproc_info->ccr_functional = pdc_result[0];
-        pdc_coproc_info->ccr_present = pdc_result[1];
-        pdc_coproc_info->revision = pdc_result[17];
-        pdc_coproc_info->model = pdc_result[18];
-        spin_unlock_irqrestore(&pdc_lock, flags);
+	spin_lock_irqsave(&pdc_lock, flags);
+	ret = pdc_coproc_cfg_unlocked(pdc_coproc_info);
+	spin_unlock_irqrestore(&pdc_lock, flags);
 
-        return retval;
+	return ret;
 }
 
 /**
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index a84e31e8287..0e3d9f9b9e3 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -121,7 +121,7 @@ $pgt_fill_loop:
 	copy		%r0,%r2
 
 	/* And the RFI Target address too */
-	load32		start_kernel,%r11
+	load32		start_parisc,%r11
 
 	/* And the initial task pointer */
 	load32		init_thread_union,%r6
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 49c63797078..90904f9dfc5 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2000 Hewlett-Packard Co, Linuxcare Inc.
  * Copyright (C) 2000 Matthew Wilcox <matthew@wil.cx>
  * Copyright (C) 2000 David Huggins-Daines <dhd@debian.org>
+ * Copyright (C) 2008 Helge Deller <deller@gmx.de>
  */
 
 #include <linux/kernel.h>
@@ -27,15 +28,149 @@
 /* PSW bits we allow the debugger to modify */
 #define USER_PSW_BITS	(PSW_N | PSW_V | PSW_CB)
 
-#undef DEBUG_PTRACE
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure single step bits etc are not set.
+ */
+void ptrace_disable(struct task_struct *task)
+{
+	task->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
 
-#ifdef DEBUG_PTRACE
-#define DBG(x...)	printk(x)
-#else
-#define DBG(x...)
-#endif
+	/* make sure the trap bits are not set */
+	pa_psw(task)->r = 0;
+	pa_psw(task)->t = 0;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+/*
+ * The following functions are called by ptrace_resume() when
+ * enabling or disabling single/block tracing.
+ */
+void user_disable_single_step(struct task_struct *task)
+{
+	ptrace_disable(task);
+}
+
+void user_enable_single_step(struct task_struct *task)
+{
+	task->ptrace &= ~PT_BLOCKSTEP;
+	task->ptrace |= PT_SINGLESTEP;
+
+	if (pa_psw(task)->n) {
+		struct siginfo si;
+
+		/* Nullified, just crank over the queue. */
+		task_regs(task)->iaoq[0] = task_regs(task)->iaoq[1];
+		task_regs(task)->iasq[0] = task_regs(task)->iasq[1];
+		task_regs(task)->iaoq[1] = task_regs(task)->iaoq[0] + 4;
+		pa_psw(task)->n = 0;
+		pa_psw(task)->x = 0;
+		pa_psw(task)->y = 0;
+		pa_psw(task)->z = 0;
+		pa_psw(task)->b = 0;
+		ptrace_disable(task);
+		/* Don't wake up the task, but let the
+		   parent know something happened. */
+		si.si_code = TRAP_TRACE;
+		si.si_addr = (void __user *) (task_regs(task)->iaoq[0] & ~3);
+		si.si_signo = SIGTRAP;
+		si.si_errno = 0;
+		force_sig_info(SIGTRAP, &si, task);
+		/* notify_parent(task, SIGCHLD); */
+		return;
+	}
+
+	/* Enable recovery counter traps.  The recovery counter
+	 * itself will be set to zero on a task switch.  If the
+	 * task is suspended on a syscall then the syscall return
+	 * path will overwrite the recovery counter with a suitable
+	 * value such that it traps once back in user space.  We
+	 * disable interrupts in the tasks PSW here also, to avoid
+	 * interrupts while the recovery counter is decrementing.
+	 */
+	pa_psw(task)->r = 1;
+	pa_psw(task)->t = 0;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+void user_enable_block_step(struct task_struct *task)
+{
+	task->ptrace &= ~PT_SINGLESTEP;
+	task->ptrace |= PT_BLOCKSTEP;
+
+	/* Enable taken branch trap. */
+	pa_psw(task)->r = 0;
+	pa_psw(task)->t = 1;
+	pa_psw(task)->h = 0;
+	pa_psw(task)->l = 0;
+}
+
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+{
+	unsigned long tmp;
+	long ret = -EIO;
 
-#ifdef CONFIG_64BIT
+	switch (request) {
+
+	/* Read the word at location addr in the USER area.  For ptraced
+	   processes, the kernel saves all regs on a syscall. */
+	case PTRACE_PEEKUSR:
+		if ((addr & (sizeof(long)-1)) ||
+		    (unsigned long) addr >= sizeof(struct pt_regs))
+			break;
+		tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
+		ret = put_user(tmp, (unsigned long *) data);
+		break;
+
+	/* Write the word at location addr in the USER area.  This will need
+	   to change when the kernel no longer saves all regs on a syscall.
+	   FIXME.  There is a problem at the moment in that r3-r18 are only
+	   saved if the process is ptraced on syscall entry, and even then
+	   those values are overwritten by actual register values on syscall
+	   exit. */
+	case PTRACE_POKEUSR:
+		/* Some register values written here may be ignored in
+		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
+		 * r31/r31+4, and not with the values in pt_regs.
+		 */
+		if (addr == PT_PSW) {
+			/* Allow writing to Nullify, Divide-step-correction,
+			 * and carry/borrow bits.
+			 * BEWARE, if you set N, and then single step, it won't
+			 * stop on the nullified instruction.
+			 */
+			data &= USER_PSW_BITS;
+			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
+			task_regs(child)->gr[0] |= data;
+			ret = 0;
+			break;
+		}
+
+		if ((addr & (sizeof(long)-1)) ||
+		    (unsigned long) addr >= sizeof(struct pt_regs))
+			break;
+		if ((addr >= PT_GR1 && addr <= PT_GR31) ||
+				addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
+				(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
+				addr == PT_SAR) {
+			*(unsigned long *) ((char *) task_regs(child) + addr) = data;
+			ret = 0;
+		}
+		break;
+
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+
+	return ret;
+}
+
+
+#ifdef CONFIG_COMPAT
 
 /* This function is needed to translate 32 bit pt_regs offsets in to
  * 64 bit pt_regs offsets.  For example, a 32 bit gdb under a 64 bit kernel
@@ -61,106 +196,25 @@ static long translate_usr_offset(long offset)
 	else
 		return -1;
 }
-#endif
 
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
+long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+			compat_ulong_t addr, compat_ulong_t data)
 {
-	/* make sure the trap bits are not set */
-	pa_psw(child)->r = 0;
-	pa_psw(child)->t = 0;
-	pa_psw(child)->h = 0;
-	pa_psw(child)->l = 0;
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
-	long ret;
-#ifdef DEBUG_PTRACE
-	long oaddr=addr, odata=data;
-#endif
+	compat_uint_t tmp;
+	long ret = -EIO;
 
 	switch (request) {
-	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
-	case PTRACE_PEEKDATA: {
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			int copied;
-			unsigned int tmp;
-
-			addr &= 0xffffffffL;
-			copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
-			ret = -EIO;
-			if (copied != sizeof(tmp))
-				goto out_tsk;
-			ret = put_user(tmp,(unsigned int *) data);
-			DBG("sys_ptrace(PEEK%s, %d, %lx, %lx) returning %ld, data %x\n",
-				request == PTRACE_PEEKTEXT ? "TEXT" : "DATA",
-				pid, oaddr, odata, ret, tmp);
-		}
-		else
-#endif
-			ret = generic_ptrace_peekdata(child, addr, data);
-		goto out_tsk;
-	}
 
-	/* when I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = 0;
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			unsigned int tmp = (unsigned int)data;
-			DBG("sys_ptrace(POKE%s, %d, %lx, %lx)\n",
-				request == PTRACE_POKETEXT ? "TEXT" : "DATA",
-				pid, oaddr, odata);
-			addr &= 0xffffffffL;
-			if (access_process_vm(child, addr, &tmp, sizeof(tmp), 1) == sizeof(tmp))
-				goto out_tsk;
-		}
-		else
-#endif
-		{
-			if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data))
-				goto out_tsk;
-		}
-		ret = -EIO;
-		goto out_tsk;
-
-	/* Read the word at location addr in the USER area.  For ptraced
-	   processes, the kernel saves all regs on a syscall. */
-	case PTRACE_PEEKUSR: {
-		ret = -EIO;
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			unsigned int tmp;
-
-			if (addr & (sizeof(int)-1))
-				goto out_tsk;
-			if ((addr = translate_usr_offset(addr)) < 0)
-				goto out_tsk;
-
-			tmp = *(unsigned int *) ((char *) task_regs(child) + addr);
-			ret = put_user(tmp, (unsigned int *) data);
-			DBG("sys_ptrace(PEEKUSR, %d, %lx, %lx) returning %ld, addr %lx, data %x\n",
-				pid, oaddr, odata, ret, addr, tmp);
-		}
-		else
-#endif
-		{
-			unsigned long tmp;
+	case PTRACE_PEEKUSR:
+		if (addr & (sizeof(compat_uint_t)-1))
+			break;
+		addr = translate_usr_offset(addr);
+		if (addr < 0)
+			break;
 
-			if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
-				goto out_tsk;
-			tmp = *(unsigned long *) ((char *) task_regs(child) + addr);
-			ret = put_user(tmp, (unsigned long *) data);
-		}
-		goto out_tsk;
-	}
+		tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
+		ret = put_user(tmp, (compat_uint_t *) (unsigned long) data);
+		break;
 
 	/* Write the word at location addr in the USER area.  This will need
 	   to change when the kernel no longer saves all regs on a syscall.
@@ -169,185 +223,46 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	   those values are overwritten by actual register values on syscall
 	   exit. */
 	case PTRACE_POKEUSR:
-		ret = -EIO;
 		/* Some register values written here may be ignored in
 		 * entry.S:syscall_restore_rfi; e.g. iaoq is written with
 		 * r31/r31+4, and not with the values in pt_regs.
 		 */
-		 /* PT_PSW=0, so this is valid for 32 bit processes under 64
-		 * bit kernels.
-		 */
 		if (addr == PT_PSW) {
-			/* PT_PSW=0, so this is valid for 32 bit processes
-			 * under 64 bit kernels.
-			 *
-			 * Allow writing to Nullify, Divide-step-correction,
-			 * and carry/borrow bits.
-			 * BEWARE, if you set N, and then single step, it won't
-			 * stop on the nullified instruction.
+			/* Since PT_PSW==0, it is valid for 32 bit processes
+			 * under 64 bit kernels as well.
 			 */
-			DBG("sys_ptrace(POKEUSR, %d, %lx, %lx)\n",
-				pid, oaddr, odata);
-			data &= USER_PSW_BITS;
-			task_regs(child)->gr[0] &= ~USER_PSW_BITS;
-			task_regs(child)->gr[0] |= data;
-			ret = 0;
-			goto out_tsk;
-		}
-#ifdef CONFIG_64BIT
-		if (__is_compat_task(child)) {
-			if (addr & (sizeof(int)-1))
-				goto out_tsk;
-			if ((addr = translate_usr_offset(addr)) < 0)
-				goto out_tsk;
-			DBG("sys_ptrace(POKEUSR, %d, %lx, %lx) addr %lx\n",
-				pid, oaddr, odata, addr);
+			ret = arch_ptrace(child, request, addr, data);
+		} else {
+			if (addr & (sizeof(compat_uint_t)-1))
+				break;
+			addr = translate_usr_offset(addr);
+			if (addr < 0)
+				break;
 			if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
 				/* Special case, fp regs are 64 bits anyway */
-				*(unsigned int *) ((char *) task_regs(child) + addr) = data;
+				*(__u64 *) ((char *) task_regs(child) + addr) = data;
 				ret = 0;
 			}
 			else if ((addr >= PT_GR1+4 && addr <= PT_GR31+4) ||
 					addr == PT_IAOQ0+4 || addr == PT_IAOQ1+4 ||
 					addr == PT_SAR+4) {
 				/* Zero the top 32 bits */
-				*(unsigned int *) ((char *) task_regs(child) + addr - 4) = 0;
-				*(unsigned int *) ((char *) task_regs(child) + addr) = data;
+				*(__u32 *) ((char *) task_regs(child) + addr - 4) = 0;
+				*(__u32 *) ((char *) task_regs(child) + addr) = data;
 				ret = 0;
 			}
-			goto out_tsk;
 		}
-		else
-#endif
-		{
-			if ((addr & (sizeof(long)-1)) || (unsigned long) addr >= sizeof(struct pt_regs))
-				goto out_tsk;
-			if ((addr >= PT_GR1 && addr <= PT_GR31) ||
-					addr == PT_IAOQ0 || addr == PT_IAOQ1 ||
-					(addr >= PT_FR0 && addr <= PT_FR31 + 4) ||
-					addr == PT_SAR) {
-				*(unsigned long *) ((char *) task_regs(child) + addr) = data;
-				ret = 0;
-			}
-			goto out_tsk;
-		}
-
-	case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
-	case PTRACE_CONT:
-		ret = -EIO;
-		DBG("sys_ptrace(%s)\n",
-			request == PTRACE_SYSCALL ? "SYSCALL" : "CONT");
-		if (!valid_signal(data))
-			goto out_tsk;
-		child->ptrace &= ~(PT_SINGLESTEP|PT_BLOCKSTEP);
-		if (request == PTRACE_SYSCALL) {
-			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		} else {
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		}		
-		child->exit_code = data;
-		goto out_wake_notrap;
-
-	case PTRACE_KILL:
-		/*
-		 * make the child exit.  Best I can do is send it a
-		 * sigkill.  perhaps it should be put in the status
-		 * that it wants to exit.
-		 */
-		ret = 0;
-		DBG("sys_ptrace(KILL)\n");
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			goto out_tsk;
-		child->exit_code = SIGKILL;
-		goto out_wake_notrap;
-
-	case PTRACE_SINGLEBLOCK:
-		DBG("sys_ptrace(SINGLEBLOCK)\n");
-		ret = -EIO;
-		if (!valid_signal(data))
-			goto out_tsk;
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->ptrace &= ~PT_SINGLESTEP;
-		child->ptrace |= PT_BLOCKSTEP;
-		child->exit_code = data;
-
-		/* Enable taken branch trap. */
-		pa_psw(child)->r = 0;
-		pa_psw(child)->t = 1;
-		pa_psw(child)->h = 0;
-		pa_psw(child)->l = 0;
-		goto out_wake;
-
-	case PTRACE_SINGLESTEP:
-		DBG("sys_ptrace(SINGLESTEP)\n");
-		ret = -EIO;
-		if (!valid_signal(data))
-			goto out_tsk;
-
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->ptrace &= ~PT_BLOCKSTEP;
-		child->ptrace |= PT_SINGLESTEP;
-		child->exit_code = data;
-
-		if (pa_psw(child)->n) {
-			struct siginfo si;
-
-			/* Nullified, just crank over the queue. */
-			task_regs(child)->iaoq[0] = task_regs(child)->iaoq[1];
-			task_regs(child)->iasq[0] = task_regs(child)->iasq[1];
-			task_regs(child)->iaoq[1] = task_regs(child)->iaoq[0] + 4;
-			pa_psw(child)->n = 0;
-			pa_psw(child)->x = 0;
-			pa_psw(child)->y = 0;
-			pa_psw(child)->z = 0;
-			pa_psw(child)->b = 0;
-			ptrace_disable(child);
-			/* Don't wake up the child, but let the
-			   parent know something happened. */
-			si.si_code = TRAP_TRACE;
-			si.si_addr = (void __user *) (task_regs(child)->iaoq[0] & ~3);
-			si.si_signo = SIGTRAP;
-			si.si_errno = 0;
-			force_sig_info(SIGTRAP, &si, child);
-			//notify_parent(child, SIGCHLD);
-			//ret = 0;
-			goto out_wake;
-		}
-
-		/* Enable recovery counter traps.  The recovery counter
-		 * itself will be set to zero on a task switch.  If the
-		 * task is suspended on a syscall then the syscall return
-		 * path will overwrite the recovery counter with a suitable
-		 * value such that it traps once back in user space.  We
-		 * disable interrupts in the childs PSW here also, to avoid
-		 * interrupts while the recovery counter is decrementing.
-		 */
-		pa_psw(child)->r = 1;
-		pa_psw(child)->t = 0;
-		pa_psw(child)->h = 0;
-		pa_psw(child)->l = 0;
-		/* give it a chance to run. */
-		goto out_wake;
-
-	case PTRACE_GETEVENTMSG:
-                ret = put_user(child->ptrace_message, (unsigned int __user *) data);
-		goto out_tsk;
+		break;
 
 	default:
-		ret = ptrace_request(child, request, addr, data);
-		goto out_tsk;
+		ret = compat_ptrace_request(child, request, addr, data);
+		break;
 	}
 
-out_wake_notrap:
-	ptrace_disable(child);
-out_wake:
-	wake_up_process(child);
-	ret = 0;
-out_tsk:
-	DBG("arch_ptrace(%ld, %d, %lx, %lx) returning %ld\n",
-		request, pid, oaddr, odata, ret);
 	return ret;
 }
+#endif
+
 
 void syscall_trace(void)
 {
diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 7a92695d95a..5f3d3a1f903 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -8,12 +8,24 @@
  *
  */
 
+#include <asm/pdc.h>
 #include <asm/psw.h>
 #include <asm/assembly.h>
+#include <asm/asm-offsets.h>
 
 #include <linux/linkage.h>
 
+
 	.section	.bss
+
+	.export pdc_result
+	.export pdc_result2
+	.align 8
+pdc_result:
+	.block	ASM_PDC_RESULT_SIZE
+pdc_result2:
+	.block	ASM_PDC_RESULT_SIZE
+
 	.export real_stack
 	.export real32_stack
 	.export real64_stack
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 39e7c5a5946..7d27853ff8c 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -44,6 +44,7 @@
 #include <asm/pdc_chassis.h>
 #include <asm/io.h>
 #include <asm/setup.h>
+#include <asm/unwind.h>
 
 static char __initdata command_line[COMMAND_LINE_SIZE];
 
@@ -123,6 +124,7 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_64BIT
 	extern int parisc_narrow_firmware;
 #endif
+	unwind_init();
 
 	init_per_cpu(smp_processor_id());	/* Set Modes & Enable FP */
 
@@ -368,6 +370,31 @@ static int __init parisc_init(void)
 
 	return 0;
 }
-
 arch_initcall(parisc_init);
 
+void start_parisc(void)
+{
+	extern void start_kernel(void);
+
+	int ret, cpunum;
+	struct pdc_coproc_cfg coproc_cfg;
+
+	cpunum = smp_processor_id();
+
+	set_firmware_width_unlocked();
+
+	ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
+	if (ret >= 0 && coproc_cfg.ccr_functional) {
+		mtctl(coproc_cfg.ccr_functional, 10);
+
+		cpu_data[cpunum].fp_rev = coproc_cfg.revision;
+		cpu_data[cpunum].fp_model = coproc_cfg.model;
+
+		asm volatile ("fstd	%fr0,8(%sp)");
+	} else {
+		panic("must have an fpu to boot linux");
+	}
+
+	start_kernel();
+	// not reached
+}
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index c7e59f54881..303d2b647e4 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -87,7 +87,7 @@
 	ENTRY_SAME(setuid)
 	ENTRY_SAME(getuid)
 	ENTRY_COMP(stime)		/* 25 */
-	ENTRY_SAME(ptrace)
+	ENTRY_COMP(ptrace)
 	ENTRY_SAME(alarm)
 	/* see stat comment */
 	ENTRY_COMP(newfstat)
@@ -407,6 +407,12 @@
 	ENTRY_SAME(timerfd_create)
 	ENTRY_COMP(timerfd_settime)
 	ENTRY_COMP(timerfd_gettime)
+	ENTRY_COMP(signalfd4)
+	ENTRY_SAME(eventfd2)		/* 310 */
+	ENTRY_SAME(epoll_create1)
+	ENTRY_SAME(dup3)
+	ENTRY_SAME(pipe2)
+	ENTRY_SAME(inotify_init1)
 
 	/* Nothing yet */
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 24be86bba94..4d09203bc69 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -23,6 +23,7 @@
 #include <linux/smp.h>
 #include <linux/profile.h>
 #include <linux/clocksource.h>
+#include <linux/platform_device.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -215,6 +216,24 @@ void __init start_cpu_itimer(void)
 	cpu_data[cpu].it_value = next_tick;
 }
 
+struct platform_device rtc_parisc_dev = {
+	.name = "rtc-parisc",
+	.id = -1,
+};
+
+static int __init rtc_init(void)
+{
+	int ret;
+
+	ret = platform_device_register(&rtc_parisc_dev);
+	if (ret < 0)
+		printk(KERN_ERR "unable to register rtc device...\n");
+
+	/* not necessarily an error */
+	return 0;
+}
+module_init(rtc_init);
+
 void __init time_init(void)
 {
 	static struct pdc_tod tod_data;
@@ -245,4 +264,3 @@ void __init time_init(void)
 		xtime.tv_nsec = 0;
 	}
 }
-
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 701b2d2d888..6773c582e45 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -170,7 +170,7 @@ void unwind_table_remove(struct unwind_table *table)
 }
 
 /* Called from setup_arch to import the kernel unwind info */
-static int unwind_init(void)
+int unwind_init(void)
 {
 	long start, stop;
 	register unsigned long gp __asm__ ("r27");
@@ -417,5 +417,3 @@ int unwind_to_user(struct unwind_frame_info *info)
 
 	return ret;
 }
-
-module_init(unwind_init);
diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index f2492ecf082..db60539bf67 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -20,8 +20,8 @@
 #include <linux/agp_backend.h>
 #include <linux/log2.h>
 
-#include <asm-parisc/parisc-device.h>
-#include <asm-parisc/ropes.h>
+#include <asm/parisc-device.h>
+#include <asm/ropes.h>
 
 #include "agp.h"
 
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b30e38f3a50..dcc1e9958d2 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -66,15 +66,8 @@
 #undef DEBUG_CCIO_RUN_SG
 
 #ifdef CONFIG_PROC_FS
-/*
- * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
- * impacts performance though - ditch it if you don't use it.
- */
-#define CCIO_SEARCH_TIME
-#undef CCIO_MAP_STATS
-#else
-#undef CCIO_SEARCH_TIME
-#undef CCIO_MAP_STATS
+/* depends on proc fs support. But costs CPU performance. */
+#undef CCIO_COLLECT_STATS
 #endif
 
 #include <linux/proc_fs.h>
@@ -239,12 +232,10 @@ struct ioc {
 	u32 res_size;		    	/* size of resource map in bytes */
 	spinlock_t res_lock;
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 #define CCIO_SEARCH_SAMPLE 0x100
 	unsigned long avg_search[CCIO_SEARCH_SAMPLE];
 	unsigned long avg_idx;		  /* current index into avg_search */
-#endif
-#ifdef CCIO_MAP_STATS
 	unsigned long used_pages;
 	unsigned long msingle_calls;
 	unsigned long msingle_pages;
@@ -351,7 +342,7 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
 	unsigned int pages_needed = size >> IOVP_SHIFT;
 	unsigned int res_idx;
 	unsigned long boundary_size;
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 	unsigned long cr_start = mfctl(16);
 #endif
 	
@@ -406,7 +397,7 @@ resource_found:
 	DBG_RES("%s() res_idx %d res_hint: %d\n",
 		__func__, res_idx, ioc->res_hint);
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 	{
 		unsigned long cr_end = mfctl(16);
 		unsigned long tmp = cr_end - cr_start;
@@ -416,7 +407,7 @@ resource_found:
 	ioc->avg_search[ioc->avg_idx++] = cr_start;
 	ioc->avg_idx &= CCIO_SEARCH_SAMPLE - 1;
 #endif
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->used_pages += pages_needed;
 #endif
 	/* 
@@ -452,7 +443,7 @@ ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
 	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
 		__func__, res_idx, pages_mapped);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->used_pages -= pages_mapped;
 #endif
 
@@ -764,7 +755,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
 	size = ALIGN(size + offset, IOVP_SIZE);
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->msingle_calls++;
 	ioc->msingle_pages += size >> IOVP_SHIFT;
 #endif
@@ -828,7 +819,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
 
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->usingle_calls++;
 	ioc->usingle_pages += size >> IOVP_SHIFT;
 #endif
@@ -894,7 +885,7 @@ ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
 */
 #define PIDE_FLAG 0x80000000UL
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 #define IOMMU_MAP_STATS
 #endif
 #include "iommu-helpers.h"
@@ -938,7 +929,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	
 	spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->msg_calls++;
 #endif
 
@@ -997,13 +988,13 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
 	DBG_RUN_SG("%s() START %d entries,  %08lx,%x\n",
 		__func__, nents, sg_virt_addr(sglist), sglist->length);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 	ioc->usg_calls++;
 #endif
 
 	while(sg_dma_len(sglist) && nents--) {
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 		ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
 #endif
 		ccio_unmap_single(dev, sg_dma_address(sglist),
@@ -1048,7 +1039,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
 			       total_pages * 8, total_pages);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 		len += seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
 				  total_pages - ioc->used_pages, ioc->used_pages,
 				  (int)(ioc->used_pages * 100 / total_pages));
@@ -1057,7 +1048,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
 				  ioc->res_size, total_pages);
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 		min = max = ioc->avg_search[0];
 		for(j = 0; j < CCIO_SEARCH_SAMPLE; ++j) {
 			avg += ioc->avg_search[j];
@@ -1070,7 +1061,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
 				  min, avg, max);
 #endif
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 		len += seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
 				  ioc->msingle_calls, ioc->msingle_pages,
 				  (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
@@ -1088,7 +1079,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
 		len += seq_printf(m, "pci_unmap_sg()  : %8ld calls  %8ld pages (avg %d/1000)\n\n\n",
 				  ioc->usg_calls, ioc->usg_pages,
 				  (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
-#endif	/* CCIO_MAP_STATS */
+#endif	/* CCIO_COLLECT_STATS */
 
 		ioc = ioc->next;
 	}
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index f660ef3e5b2..814f49fde53 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -610,6 +610,14 @@ config RTC_DRV_RS5C313
 	help
 	  If you say yes here you get support for the Ricoh RS5C313 RTC chips.
 
+config RTC_DRV_PARISC
+	tristate "PA-RISC firmware RTC support"
+	depends on PARISC
+	help
+	  Say Y or M here to enable RTC support on PA-RISC systems using
+	  firmware calls. If you do not know what you are doing, you should
+	  just say Y.
+
 config RTC_DRV_PPC
        tristate "PowerPC machine dependent RTC support"
        depends on PPC
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index d05928b3ca9..d6a9ac7176e 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_RTC_DRV_PCF8563)	+= rtc-pcf8563.o
 obj-$(CONFIG_RTC_DRV_PCF8583)	+= rtc-pcf8583.o
 obj-$(CONFIG_RTC_DRV_PL030)	+= rtc-pl030.o
 obj-$(CONFIG_RTC_DRV_PL031)	+= rtc-pl031.o
+obj-$(CONFIG_RTC_DRV_PARISC)	+= rtc-parisc.o
 obj-$(CONFIG_RTC_DRV_PPC)	+= rtc-ppc.o
 obj-$(CONFIG_RTC_DRV_R9701)	+= rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RS5C313)	+= rtc-rs5c313.o
diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
new file mode 100644
index 00000000000..346d633655e
--- /dev/null
+++ b/drivers/rtc/rtc-parisc.c
@@ -0,0 +1,111 @@
+/* rtc-parisc: RTC for HP PA-RISC firmware
+ *
+ * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/platform_device.h>
+
+#include <asm/rtc.h>
+
+/* as simple as can be, and no simpler. */
+struct parisc_rtc {
+	struct rtc_device *rtc;
+	spinlock_t lock;
+};
+
+static int parisc_get_time(struct device *dev, struct rtc_time *tm)
+{
+	struct parisc_rtc *p = dev_get_drvdata(dev);
+	unsigned long flags, ret;
+
+	spin_lock_irqsave(&p->lock, flags);
+	ret = get_rtc_time(tm);
+	spin_unlock_irqrestore(&p->lock, flags);
+
+	if (ret & RTC_BATT_BAD)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static int parisc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct parisc_rtc *p = dev_get_drvdata(dev);
+	unsigned long flags, ret;
+
+	spin_lock_irqsave(&p->lock, flags);
+	ret = set_rtc_time(tm);
+	spin_unlock_irqrestore(&p->lock, flags);
+
+	if (ret < 0)
+		return -EOPNOTSUPP;
+
+	return 0;
+}
+
+static const struct rtc_class_ops parisc_rtc_ops = {
+	.read_time = parisc_get_time,
+	.set_time = parisc_set_time,
+};
+
+static int __devinit parisc_rtc_probe(struct platform_device *dev)
+{
+	struct parisc_rtc *p;
+
+	p = kzalloc(sizeof (*p), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	spin_lock_init(&p->lock);
+
+	p->rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
+					THIS_MODULE);
+	if (IS_ERR(p->rtc)) {
+		int err = PTR_ERR(p->rtc);
+		kfree(p);
+		return err;
+	}
+
+	platform_set_drvdata(dev, p);
+
+	return 0;
+}
+
+static int __devexit parisc_rtc_remove(struct platform_device *dev)
+{
+	struct parisc_rtc *p = platform_get_drvdata(dev);
+
+	rtc_device_unregister(p->rtc);
+	kfree(p);
+
+	return 0;
+}
+
+static struct platform_driver parisc_rtc_driver = {
+	.driver = {
+		.name = "rtc-parisc",
+		.owner = THIS_MODULE,
+	},
+	.probe = parisc_rtc_probe,
+	.remove = __devexit_p(parisc_rtc_remove),
+};
+
+static int __init parisc_rtc_init(void)
+{
+	return platform_driver_register(&parisc_rtc_driver);
+}
+
+static void __exit parisc_rtc_fini(void)
+{
+	platform_driver_unregister(&parisc_rtc_driver);
+}
+
+module_init(parisc_rtc_init);
+module_exit(parisc_rtc_fini);
+
+MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("HP PA-RISC RTC driver");