[PATCH] PA-RISC update for 2.6.0-test5

PA-RISC updates for 2.6.0-test5.

Contributions from Paul Bame, James Bottomley, Randolph Chung, Helge
Deller, Grant Grundler, LaMont Jones, Matthew Wilcox

arch/parisc/Kconfig

@@ -184,7 +184,7 @@ source "drivers/scsi/Kconfig"
 
 source "drivers/md/Kconfig"
 
-#source drivers/message/fusion/Kconfig
+source drivers/message/fusion/Kconfig
 
 #source drivers/ieee1394/Kconfig
 

arch/parisc/Makefile

@@ -16,7 +16,7 @@
 # Modified for PA-RISC Linux by Paul Lahaie, Alex deVries, 
 # Mike Shaver, Helge Deller and Martin K. Petersen
 #
-
+NM		= sh arch/parisc/nm
 ifdef CONFIG_PARISC64
 CROSS_COMPILE	:= hppa64-linux-
 UTS_MACHINE	:= parisc64

arch/parisc/defconfig

@@ -150,24 +150,25 @@ CONFIG_CHR_DEV_SG=y
 CONFIG_SCSI_LASI700=y
 CONFIG_53C700_MEM_MAPPED=y
 CONFIG_53C700_LE_ON_BE=y
-# CONFIG_SCSI_NCR53C7xx is not set
-# CONFIG_SCSI_SYM53C8XX_2 is not set
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=1
+CONFIG_SCSI_SYM53C8XX_DEFAULT_TAGS=16
+CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
+# CONFIG_SCSI_SYM53C8XX_IOMAPPED is not set
 CONFIG_SCSI_ZALON=y
-# CONFIG_SCSI_NCR53C8XX is not set
-CONFIG_SCSI_SYM53C8XX=y
 CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS=8
 CONFIG_SCSI_NCR53C8XX_MAX_TAGS=32
 CONFIG_SCSI_NCR53C8XX_SYNC=20
 # CONFIG_SCSI_NCR53C8XX_PROFILE is not set
-# CONFIG_SCSI_NCR53C8XX_PQS_PDS is not set
 # CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT is not set
 # CONFIG_SCSI_PCI2000 is not set
 # CONFIG_SCSI_PCI2220I is not set
 # CONFIG_SCSI_QLOGIC_ISP is not set
 # CONFIG_SCSI_QLOGIC_FC is not set
 # CONFIG_SCSI_QLOGIC_1280 is not set
+# CONFIG_SCSI_SIM710 is not set
+# CONFIG_SCSI_DC395x is not set
 # CONFIG_SCSI_DC390T is not set
-# CONFIG_SCSI_U14_34F is not set
 # CONFIG_SCSI_NSP32 is not set
 # CONFIG_SCSI_DEBUG is not set
 
@@ -374,7 +375,6 @@ CONFIG_SERIO=y
 # CONFIG_SERIO_CT82C710 is not set
 # CONFIG_SERIO_PARKBD is not set
 CONFIG_HP_SDC=y
-CONFIG_HIL_MLC=y
 
 #
 # Input Device Drivers

arch/parisc/hpux/wrappers.S

@@ -21,17 +21,20 @@
  */
 
 #ifdef __LP64__
-#warning Must be changed for PA64
+#warning PA64 support needs more work...did first cut
 #endif
 
 #include <asm/offsets.h>
+#include <asm/assembly.h>
+#include <asm/signal.h>
 
+#ifdef __LP64__
+	.level          2.0w
+#else
 	.level		1.1
+#endif
 	.text
 
-#include <asm/assembly.h>
-#include <asm/signal.h>
-
 	/* These should probably go in a header file somewhere.
 	 * They are duplicated in kernel/wrappers.S
 	 * Possibly we should consider consolidating these
@@ -41,41 +44,41 @@
 #ifdef __LP64__
 #warning NEEDS WORK for 64-bit
 #endif
-	stw	%r3, PT_GR3(\regs)
-	stw	%r4, PT_GR4(\regs)
-	stw	%r5, PT_GR5(\regs)
-	stw	%r6, PT_GR6(\regs)
-	stw	%r7, PT_GR7(\regs)
-	stw	%r8, PT_GR8(\regs)
-	stw	%r9, PT_GR9(\regs)
-	stw    %r10,PT_GR10(\regs)
-	stw    %r11,PT_GR11(\regs)
-	stw    %r12,PT_GR12(\regs)
-	stw    %r13,PT_GR13(\regs)
-	stw    %r14,PT_GR14(\regs)
-	stw    %r15,PT_GR15(\regs)
-	stw    %r16,PT_GR16(\regs)
-	stw    %r17,PT_GR17(\regs)
-	stw    %r18,PT_GR18(\regs)
+	STREG	%r3, PT_GR3(\regs)
+	STREG	%r4, PT_GR4(\regs)
+	STREG	%r5, PT_GR5(\regs)
+	STREG	%r6, PT_GR6(\regs)
+	STREG	%r7, PT_GR7(\regs)
+	STREG	%r8, PT_GR8(\regs)
+	STREG	%r9, PT_GR9(\regs)
+	STREG	%r10,PT_GR10(\regs)
+	STREG	%r11,PT_GR11(\regs)
+	STREG	%r12,PT_GR12(\regs)
+	STREG	%r13,PT_GR13(\regs)
+	STREG	%r14,PT_GR14(\regs)
+	STREG	%r15,PT_GR15(\regs)
+	STREG	%r16,PT_GR16(\regs)
+	STREG	%r17,PT_GR17(\regs)
+	STREG	%r18,PT_GR18(\regs)
 	.endm
 
 	.macro	reg_restore regs
-	ldw	PT_GR3(\regs), %r3
-	ldw	PT_GR4(\regs), %r4
-	ldw	PT_GR5(\regs), %r5
-	ldw	PT_GR6(\regs), %r6
-	ldw	PT_GR7(\regs), %r7
-	ldw	PT_GR8(\regs), %r8
-	ldw	PT_GR9(\regs), %r9
-	ldw    PT_GR10(\regs),%r10
-	ldw    PT_GR11(\regs),%r11
-	ldw    PT_GR12(\regs),%r12
-	ldw    PT_GR13(\regs),%r13
-	ldw    PT_GR14(\regs),%r14
-	ldw    PT_GR15(\regs),%r15
-	ldw    PT_GR16(\regs),%r16
-	ldw    PT_GR17(\regs),%r17
-	ldw    PT_GR18(\regs),%r18
+	LDREG	PT_GR3(\regs), %r3
+	LDREG	PT_GR4(\regs), %r4
+	LDREG	PT_GR5(\regs), %r5
+	LDREG	PT_GR6(\regs), %r6
+	LDREG	PT_GR7(\regs), %r7
+	LDREG	PT_GR8(\regs), %r8
+	LDREG	PT_GR9(\regs), %r9
+	LDREG	PT_GR10(\regs),%r10
+	LDREG	PT_GR11(\regs),%r11
+	LDREG	PT_GR12(\regs),%r12
+	LDREG	PT_GR13(\regs),%r13
+	LDREG	PT_GR14(\regs),%r14
+	LDREG	PT_GR15(\regs),%r15
+	LDREG	PT_GR16(\regs),%r16
+	LDREG	PT_GR17(\regs),%r17
+	LDREG	PT_GR18(\regs),%r18
 	.endm
 
 
@@ -88,18 +91,18 @@ hpux_fork_wrapper:
 							    ;! pointer in task
 	reg_save %r1
 
-	stw	%r2,-20(%r30)
+	STREG	%r2,-20(%r30)
 	ldo	64(%r30),%r30
-	stw	%r2,PT_GR19(%r1)	;! save for child
-	stw	%r30,PT_GR21(%r1)	;! save for child
+	STREG	%r2,PT_GR19(%r1)	;! save for child
+	STREG	%r30,PT_GR21(%r1)	;! save for child
 
-	ldw     PT_GR30(%r1),%r25
-	mtctl   %r25,%cr29
+	LDREG	PT_GR30(%r1),%r25
+	mtctl	%r25,%cr29
 	copy	%r1,%r24
 	bl	sys_clone,%r2
 	ldi	SIGCHLD,%r26
 
-	ldw -84(%r30),%r2
+	LDREG	-84(%r30),%r2
 fork_return:
 	ldo	-64(%r30),%r30
 	ldo	TASK_REGS-TASK_SZ_ALGN-64(%r30),%r1	    ;! get pt regs
@@ -116,14 +119,14 @@ fork_return:
 	 * know the difference. We can fix this later if necessary.
 	 */
 
-	ldo -1024(%r0),%r1
+	ldo	-1024(%r0),%r1
 	comb,>>=,n %r28,%r1,fork_exit  /* just let the syscall exit handle it */
-	or,= %r28,%r0,%r0
-	or,tr %r0,%r0,%r29	/* r28 <> 0, we are parent, set r29 to 0 */
-	ldo 1(%r0),%r29 	/* r28 == 0, we are child,  set r29 to 1 */
+	or,=	%r28,%r0,%r0
+	or,tr	%r0,%r0,%r29	/* r28 <> 0, we are parent, set r29 to 0 */
+	ldo	1(%r0),%r29 	/* r28 == 0, we are child,  set r29 to 1 */
 
 fork_exit:
-	bv %r0(%r2)
+	bv	%r0(%r2)
 	nop
 
 	/* Set the return value for the child */
@@ -134,7 +137,7 @@ hpux_child_return:
 	nop
 #endif
 
-	ldw TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
+	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
 
@@ -157,17 +160,17 @@ hpux_execve_wrapper:
 
 	/* Store arg0, arg1 and arg2 so that hpux_execve will find them */
 
-	stw %r26,PT_GR26(%r1)
-	stw %r25,PT_GR25(%r1)
-	stw %r24,PT_GR24(%r1)
+	STREG %r26,PT_GR26(%r1)
+	STREG %r25,PT_GR25(%r1)
+	STREG %r24,PT_GR24(%r1)
 
-	stw %r2,-20(%r30)
+	STREG %r2,-20(%r30)
 	ldo 64(%r30),%r30
 	bl hpux_execve,%r2
 	copy %r1,%arg0
 
 	ldo -64(%r30),%r30
-	ldw -20(%r30),%r2
+	LDREG	-20(%r30),%r2
 
 	/* If exec succeeded we need to load the args */
 
@@ -175,10 +178,10 @@ hpux_execve_wrapper:
 	comb,>>= %r28,%r1,exec_error
 	copy %r2,%r19
 	ldo	-TASK_SZ_ALGN-64(%r30),%r1	   ;! get task ptr
-	ldw TASK_PT_GR26(%r1),%r26
-	ldw TASK_PT_GR25(%r1),%r25
-	ldw TASK_PT_GR24(%r1),%r24
-	ldw TASK_PT_GR23(%r1),%r23
+	LDREG	TASK_PT_GR26(%r1),%r26
+	LDREG	TASK_PT_GR25(%r1),%r25
+	LDREG	TASK_PT_GR24(%r1),%r24
+	LDREG	TASK_PT_GR23(%r1),%r23
 	copy %r0,%r2	/* Flag to syscall_exit not to clear args */
 
 exec_error:
@@ -191,7 +194,7 @@ exec_error:
 	/* HP-UX expects pipefd's returned in r28 & r29 */
 
 hpux_pipe_wrapper:
-	stw %r2,-20(%r30)
+	STREG %r2,-20(%r30)
 	ldo 64(%r30),%r30
 	bl hpux_pipe,%r2
 	ldo -56(%r30),%r26 /* pass local array to hpux_pipe */
@@ -199,12 +202,12 @@ hpux_pipe_wrapper:
 
 	ldo -1024(%r0),%r1
 	comb,>>= %r28,%r1,pipe_exit /* let syscall exit handle it */
-	ldw -84(%r30),%r2
+	LDREG	-84(%r30),%r2
 
 	/* if success, load fd's from stack array */
 
-	ldw -56(%r30),%r28
-	ldw -52(%r30),%r29
+	LDREG	-56(%r30),%r28
+	LDREG	-52(%r30),%r29
 
 pipe_exit:
 	bv %r0(%r2)
@@ -251,4 +254,4 @@ no_error:
 
 hpux_unimplemented_wrapper:
 	b hpux_unimplemented
-	stw %r22,-64(%r30)  /* overwrite arg8 with syscall number */
+	STREG %r22,-64(%r30)  /* overwrite arg8 with syscall number */

arch/parisc/kernel/cache.c

@@ -232,7 +232,8 @@ void __flush_dcache_page(struct page *page)
 
 	if (!page->mapping)
 		return;
-
+	/* check shared list first if it's not empty...it's usually
+	 * the shortest */
 	list_for_each(l, &page->mapping->i_mmap_shared) {
 		struct vm_area_struct *mpnt;
 		unsigned long off;
@@ -254,6 +255,33 @@ void __flush_dcache_page(struct page *page)
 
 		flush_cache_page(mpnt, mpnt->vm_start + (off << PAGE_SHIFT));
 
+		/* All user shared mappings should be equivalently mapped,
+		 * so once we've flushed one we should be ok
+		 */
+		return;
+	}
+
+	/* then check private mapping list for read only shared mappings
+	 * which are flagged by VM_MAYSHARE */
+	list_for_each(l, &page->mapping->i_mmap) {
+		struct vm_area_struct *mpnt;
+		unsigned long off;
+
+		mpnt = list_entry(l, struct vm_area_struct, shared);
+
+
+		if (mpnt->vm_mm != mm || !(mpnt->vm_flags & VM_MAYSHARE))
+			continue;
+
+		if (page->index < mpnt->vm_pgoff)
+			continue;
+
+		off = page->index - mpnt->vm_pgoff;
+		if (off >= (mpnt->vm_end - mpnt->vm_start) >> PAGE_SHIFT)
+			continue;
+
+		flush_cache_page(mpnt, mpnt->vm_start + (off << PAGE_SHIFT));
+
 		/* All user shared mappings should be equivalently mapped,
 		 * so once we've flushed one we should be ok
 		 */

arch/parisc/kernel/drivers.c

@@ -447,7 +447,7 @@ int register_parisc_device(struct parisc_device *dev)
 #define MAX_NATIVE_DEVICES 64
 #define NATIVE_DEVICE_OFFSET 0x1000
 
-#define FLEX_MASK 	(unsigned long)0xfffffffffffc0000
+#define FLEX_MASK 	F_EXTEND(0xfffc0000)
 #define IO_IO_LOW	offsetof(struct bc_module, io_io_low)
 #define IO_IO_HIGH	offsetof(struct bc_module, io_io_high)
 #define READ_IO_IO_LOW(dev)  (unsigned long)(signed int)__raw_readl(dev->hpa + IO_IO_LOW)
@@ -514,7 +514,7 @@ static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
 	} while(!devices_found && hpa < io_io_high);
 }
 
-#define CENTRAL_BUS_ADDR (unsigned long) 0xfffffffffff80000
+#define CENTRAL_BUS_ADDR F_EXTEND(0xfff80000)
 
 /**
  * walk_central_bus - Find devices attached to the central bus

arch/parisc/kernel/irq.c

@@ -842,6 +842,10 @@ int probe_irq_off(unsigned long val)
 	return irq_found;
 }
 
+unsigned int probe_irq_mask(unsigned long irqs)
+{
+	return 0;
+}
 
 void __init init_IRQ(void)
 {

arch/parisc/kernel/module.c

@@ -41,6 +41,13 @@
 		return -ENOEXEC;			\
 	}
 
+/* Maximum number of GOT entries. We use a long displacement ldd from
+ * the bottom of the table, which has a maximum signed displacement of
+ * 0x3fff; however, since we're only going forward, this becomes
+ * 0x1fff, and thus, since each GOT entry is 8 bytes long we can have
+ * at most 1023 entries */
+#define MAX_GOTS	1023
+
 /* three functions to determine where in the module core
  * or init pieces the location is */
 static inline int is_init(struct module *me, void *loc)
@@ -300,11 +307,14 @@ static Elf64_Word get_got(struct module *me, unsigned long value, long addend)
 	got = me->module_core + me->arch.got_offset;
 	for (i = 0; got[i].addr; i++)
 		if (got[i].addr == value)
-			return i * sizeof(struct got_entry);
+			goto out;
 
 	BUG_ON(++me->arch.got_count > me->arch.got_max);
 
 	got[i].addr = value;
+ out:
+	DEBUGP("GOT ENTRY %d[%x] val %lx\n", i, i*sizeof(struct got_entry),
+	       value);
 	return i * sizeof(struct got_entry);
 }
 #endif /* __LP64__ */
@@ -387,7 +397,7 @@ static Elf_Addr get_stub(struct module *me, unsigned long value, long addend,
 		stub->insns[2] = 0xe820d000;	/* bve (%r1)		*/
 		stub->insns[3] = 0x537b0030;	/* ldd 18(%dp),%dp	*/
 
-		stub->insns[0] |= reassemble_14(rrsel(get_got(me, value, addend),0));
+		stub->insns[0] |= reassemble_14(get_got(me, value, addend) & 0x3fff);
 	}
 	else
 	{
@@ -516,6 +526,9 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 		case R_PARISC_PCREL22F:
 			/* 22-bit PC relative address; only defined for pa20 */
 			val = get_stub(me, val, addend, 0, is_init(me, loc));
+			DEBUGP("STUB FOR %s loc %lx+%lx at %lx\n", 
+			       strtab + sym->st_name, (unsigned long)loc, addend, 
+			       val)
 			val = (val - dot - 8)/4;
 			CHECK_RELOC(val, 22);
 			*loc = (*loc & ~0x3ff1ffd) | reassemble_22(val);
@@ -618,6 +631,9 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 					val = get_stub(me, val, addend, 0,
 						       is_init(me, loc));
 			}
+			DEBUGP("STUB FOR %s loc %lx, val %lx+%lx at %lx\n", 
+			       strtab + sym->st_name, loc, sym->st_value,
+			       addend, val);
 			/* FIXME: local symbols work as long as the
 			 * core and init pieces aren't separated too
 			 * far.  If this is ever broken, you will trip
@@ -646,6 +662,9 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			/* 64-bit function address */
 			if(is_local(me, (void *)(val + addend))) {
 				*loc64 = get_fdesc(me, val+addend);
+				DEBUGP("FDESC for %s at %p points to %lx\n",
+				       strtab + sym->st_name, *loc64,
+				       ((struct fdesc_entry *)*loc64)->addr);
 			} else {
 				/* if the symbol is not local to this
 				 * module then val+addend is a pointer
@@ -711,8 +730,13 @@ int module_finalize(const Elf_Ehdr *hdr,
 		}
 	}
 
-	printk("module %s: strtab %p, symhdr %p\n",
+	DEBUGP("module %s: strtab %p, symhdr %p\n",
 	       me->name, strtab, symhdr);
+
+	if(me->arch.got_count > MAX_GOTS) {
+		printk(KERN_ERR "%s: Global Offset Table overflow (used %ld, allowed %d\n", me->name, me->arch.got_count, MAX_GOTS);
+		return -EINVAL;
+	}
 	
 	/* no symbol table */
 	if(symhdr == NULL)

arch/parisc/kernel/parisc_ksyms.c

@@ -37,6 +37,7 @@ EXPORT_SYMBOL(get_pci_node_path);
 #include <asm/irq.h>
 EXPORT_SYMBOL(enable_irq);
 EXPORT_SYMBOL(disable_irq);
+EXPORT_SYMBOL(probe_irq_mask);
 
 #include <asm/processor.h>
 EXPORT_SYMBOL(kernel_thread);
@@ -201,6 +202,9 @@ EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__lshrdi3);
 EXPORT_SYMBOL(__muldi3);
 
+asmlinkage void * __canonicalize_funcptr_for_compare(void *);
+EXPORT_SYMBOL(__canonicalize_funcptr_for_compare);
+
 #ifdef __LP64__
 extern void __divdi3(void);
 extern void __udivdi3(void);

arch/parisc/kernel/pci.c

@@ -25,7 +25,7 @@
 #define DEBUG_CONFIG 0
 
 #if DEBUG_CONFIG
-# define DBGC(x...)     printk(KERN_DEBUG x)
+# define DBGC(x...)	printk(KERN_DEBUG x)
 #else
 # define DBGC(x...)
 #endif
@@ -38,13 +38,15 @@
 #endif
 
 /* To be used as: mdelay(pci_post_reset_delay);
-**
-** post_reset is the time the kernel should stall to prevent anyone from
-** accessing the PCI bus once #RESET is de-asserted. 
-** PCI spec somewhere says 1 second but with multi-PCI bus systems,
-** this makes the boot time much longer than necessary.
-** 20ms seems to work for all the HP PCI implementations to date.
-*/
+ *
+ * post_reset is the time the kernel should stall to prevent anyone from
+ * accessing the PCI bus once #RESET is de-asserted. 
+ * PCI spec somewhere says 1 second but with multi-PCI bus systems,
+ * this makes the boot time much longer than necessary.
+ * 20ms seems to work for all the HP PCI implementations to date.
+ *
+ * XXX: turn into a #defined constant in <asm/pci.h> ?
+ */
 int pci_post_reset_delay = 50;
 
 struct pci_port_ops *pci_port;
@@ -52,9 +54,7 @@ struct pci_bios_ops *pci_bios;
 
 int pci_hba_count = 0;
 
-/*
-** parisc_pci_hba used by pci_port->in/out() ops to lookup bus data.
-*/
+/* parisc_pci_hba used by pci_port->in/out() ops to lookup bus data.  */
 #define PCI_HBA_MAX 32
 struct pci_hba_data *parisc_pci_hba[PCI_HBA_MAX];
 
@@ -129,8 +129,6 @@ static int __init pcibios_init(void)
 /* Called from pci_do_scan_bus() *after* walking a bus but before walking PPBs. */
 void pcibios_fixup_bus(struct pci_bus *bus)
 {
-	ASSERT(pci_bios != NULL);
-
 	if (pci_bios->fixup_bus) {
 		pci_bios->fixup_bus(bus);
 	} else {
@@ -145,64 +143,26 @@ char *pcibios_setup(char *str)
 }
 
 
-/*
-** Used in drivers/pci/quirks.c
-*/
+/* Used in drivers/pci/quirks.c */
 struct pci_fixup pcibios_fixups[] = { {0} };
 
 
 /*
-** called by drivers/pci/setup.c:pdev_fixup_irq()
-*/
-void __devinit pcibios_update_irq(struct pci_dev *dev, int irq)
-{
-/*
-** updates IRQ_LINE cfg register to reflect PCI-PCI bridge skewing.
-**
-** Calling path for Alpha is:
-**  alpha/kernel/pci.c:common_init_pci(swizzle_func, pci_map_irq_func )
-**	drivers/pci/setup.c:pci_fixup_irqs()
-**	    drivers/pci/setup.c:pci_fixup_irq()	(for each PCI device)
-**		invoke swizzle and map functions
-**	        alpha/kernel/pci.c:pcibios_update_irq()
-**
-** Don't need this for PA legacy PDC systems.
-**
-** On PAT PDC systems, We only support one "swizzle" for any number
-** of PCI-PCI bridges deep. That's how bit3 PCI expansion chassis
-** are implemented. The IRQ lines are "skewed" for all devices but
-** *NOT* routed through the PCI-PCI bridge. Ie any device "0" will
-** share an IRQ line. Legacy PDC is expecting this IRQ line routing
-** as well.
-**
-** Unfortunately, PCI spec allows the IRQ lines to be routed
-** around the PCI bridge as long as the IRQ lines are skewed
-** based on the device number...<sigh>...
-**
-** Lastly, dino.c might be able to use pci_fixup_irq() to
-** support RS-232 and PS/2 children. Not sure how but it's
-** something to think about.
-*/
-}
-
-
-/*
-** Called by pci_set_master() - a driver interface.
-**
-** Legacy PDC guarantees to set:
-**      Map Memory BAR's into PA IO space.
-**      Map Expansion ROM BAR into one common PA IO space per bus.
-**      Map IO BAR's into PCI IO space.
-**      Command (see below)
-**      Cache Line Size
-**      Latency Timer
-**      Interrupt Line
-**	PPB: secondary latency timer, io/mmio base/limit,
-**		bus numbers, bridge control
-**
-*/
-void
-pcibios_set_master(struct pci_dev *dev)
+ * Called by pci_set_master() - a driver interface.
+ *
+ * Legacy PDC guarantees to set:
+ *	Map Memory BAR's into PA IO space.
+ *	Map Expansion ROM BAR into one common PA IO space per bus.
+ *	Map IO BAR's into PCI IO space.
+ *	Command (see below)
+ *	Cache Line Size
+ *	Latency Timer
+ *	Interrupt Line
+ *	PPB: secondary latency timer, io/mmio base/limit,
+ *		bus numbers, bridge control
+ *
+ */
+void pcibios_set_master(struct pci_dev *dev)
 {
 	u8 lat;
 
@@ -214,43 +174,36 @@ pcibios_set_master(struct pci_dev *dev)
 	** HP generally has fewer devices on the bus than other architectures.
 	** upper byte is PCI_LATENCY_TIMER.
 	*/
-        pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
+	pci_write_config_word(dev, PCI_CACHE_LINE_SIZE,
 				(0x80 << 8) | (L1_CACHE_BYTES / sizeof(u32)));
 }
 
 
-void __init
-pcibios_init_bus(struct pci_bus *bus)
+void __init pcibios_init_bus(struct pci_bus *bus)
 {
 	struct pci_dev *dev = bus->self;
+	unsigned short bridge_ctl;
 
 	/* We deal only with pci controllers and pci-pci bridges. */
-	if (dev && (dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
+	if (!dev || (dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
 		return;
-	
-	if (dev) {
-		unsigned short bridge_ctl;
 
-		/* PCI-PCI bridge - set the cache line and default latency
-		   (32) for primary and secondary buses. */
-		pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 32);
+	/* PCI-PCI bridge - set the cache line and default latency
+	   (32) for primary and secondary buses. */
+	pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 32);
 
-		/* Read bridge control */
-		pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bridge_ctl);
-		pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl
-				| PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR);
-
-	}
+	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bridge_ctl);
+	bridge_ctl |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR;
+	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
 }
 
 
-/*
-** KLUGE: Link the child and parent resources - generic PCI didn't
-*/
+/* KLUGE: Link the child and parent resources - generic PCI didn't */
 static void
 pcibios_link_hba_resources( struct resource *hba_res, struct resource *r)
 {
 	if (!r->parent) {
+		printk(KERN_EMERG "PCI: Tell willy he's wrong\n");
 		r->parent = hba_res;
 
 		/* reverse link is harder *sigh*  */
@@ -268,14 +221,9 @@ pcibios_link_hba_resources( struct resource *hba_res, struct resource *r)
 	}
 }
 
-/*
-** called by drivers/pci/setup-res.c:pci_setup_bridge().
-*/
-void __devinit pcibios_resource_to_bus(
- 	struct pci_dev *dev,
-	struct pci_bus_region *region,
-	struct resource *res
-	)
+/* called by drivers/pci/setup-bus.c:pci_setup_bridge().  */
+void __devinit pcibios_resource_to_bus(struct pci_dev *dev,
+		struct pci_bus_region *region, struct resource *res)
 {
 	struct pci_bus *bus = dev->bus;
 	struct pci_hba_data *hba = HBA_DATA(bus->dev->platform_data);
@@ -313,17 +261,16 @@ EXPORT_SYMBOL(pcibios_resource_to_bus);
 #endif
 
 /*
-** pcibios align resources() is called everytime generic PCI code
-** wants to generate a new address. The process of looking for
-** an available address, each candidate is first "aligned" and
-** then checked if the resource is available until a match is found.
-**
-** Since we are just checking candidates, don't use any fields other
-** than res->start.
-*/
-void __devinit
-pcibios_align_resource(void *data, struct resource *res,
-		       unsigned long size, unsigned long alignment)
+ * pcibios align resources() is called every time generic PCI code
+ * wants to generate a new address. The process of looking for
+ * an available address, each candidate is first "aligned" and
+ * then checked if the resource is available until a match is found.
+ *
+ * Since we are just checking candidates, don't use any fields other
+ * than res->start.
+ */
+void pcibios_align_resource(void *data, struct resource *res,
+				unsigned long size, unsigned long alignment)
 {
 	unsigned long mask, align;
 
@@ -332,10 +279,6 @@ pcibios_align_resource(void *data, struct resource *res,
 		res->parent, res->start, res->end,
 		(int) res->flags, size, alignment);
 
-	/* has resource already been aligned/assigned? */
-	if (res->parent)
-		return;
-
 	/* If it's not IO, then it's gotta be MEM */
 	align = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM;
 
@@ -344,32 +287,26 @@ pcibios_align_resource(void *data, struct resource *res,
 	res->start += mask;
 	res->start &= ~mask;
 
-	/*
-	** WARNING : caller is expected to update "end" field.
-	** We can't since it might really represent the *size*.
-	** The difference is "end = start + size" vs "end += start".
-	*/
+	/* The caller updates the end field, we don't.  */
 }
 
 
-int __devinit
-pcibios_enable_device(struct pci_dev *dev, int mask)
+/*
+ * A driver is enabling the device.  We make sure that all the appropriate
+ * bits are set to allow the device to operate as the driver is expecting.
+ * We enable the port IO and memory IO bits if the device has any BARs of
+ * that type, and we enable the PERR and SERR bits unconditionally.
+ * Drivers that do not need parity (eg graphics and possibly networking)
+ * can clear these bits if they want.
+ */
+int pcibios_enable_device(struct pci_dev *dev, int mask)
 {
 	u16 cmd;
 	int idx;
 
-	/*
-	** The various platform PDC's (aka "BIOS" for PCs) don't
-	** enable all the same bits. We just make sure they are here.
-	*/
 	pci_read_config_word(dev, PCI_COMMAND, &cmd);
 
-	/*
-	** See if any resources have been allocated
-	** While "regular" PCI devices only use 0-5, Bridges use a few
-	** beyond that for window registers.
-	*/
-        for (idx=0; idx<DEVICE_COUNT_RESOURCE; idx++) {
+	for (idx = 0; idx < DEVICE_COUNT_RESOURCE; idx++) {
 		struct resource *r = &dev->resource[idx];
 
 		/* only setup requested resources */
@@ -382,14 +319,6 @@ pcibios_enable_device(struct pci_dev *dev, int mask)
 			cmd |= PCI_COMMAND_MEMORY;
 	}
 
-	/*
-	** Enable System error and Parity Error reporting by default.
-	** Devices that do NOT want those behaviors should clear them
-	** (eg PCI graphics, possibly networking).
-	** Interfaces like SCSI certainly should not. We want the
-	** system to crash if a system or parity error is detected.
-	** At least until the device driver can recover from such an error.
-	*/
 	cmd |= (PCI_COMMAND_SERR | PCI_COMMAND_PARITY);
 
 #if 0
@@ -402,30 +331,15 @@ pcibios_enable_device(struct pci_dev *dev, int mask)
 	return 0;
 }
 
-void __init
-pcibios_setup_host_bridge(struct pci_bus *bus)
-{
-	ASSERT(pci_bios != NULL);
 
-#if 0
-	if (pci_bios)
-	{
-		if (pci_bios->setup_host_bridge) {
-			(*pci_bios->setup_host_bridge)(bus);
-		}
-	}
-#endif
-}
-
-
-/*
-** PARISC specific (unfortunately)
-*/
+/* PA-RISC specific */
 void pcibios_register_hba(struct pci_hba_data *hba)
 {
-	ASSERT(pci_hba_count < PCI_HBA_MAX);
+	if (pci_hba_count >= PCI_HBA_MAX) {
+		printk(KERN_ERR "PCI: Too many Host Bus Adapters\n");
+		return;
+	}
 
-	/* pci_port->in/out() uses parisc_pci_hba to lookup parameter. */
 	parisc_pci_hba[pci_hba_count] = hba;
 	hba->hba_num = pci_hba_count++;
 }

arch/parisc/kernel/process.c

@@ -19,7 +19,6 @@
 #include <linux/sched.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
-#include <linux/version.h>
 
 #include <asm/io.h>
 #include <asm/offsets.h>

arch/parisc/kernel/real2.S

@@ -123,7 +123,7 @@ save_control_regs:
 	nop
 
 restore_control_regs:
-	load32	PA(save_cr_space + (N_SAVED_REGS * REG_SZ)), %r26
+	load32	PA(save_cr_space+(N_SAVED_REGS*REG_SZ)), %r26
 	POP_CR(%cr15, %r26)
 	POP_CR(%cr31, %r26)
 	POP_CR(%cr30, %r26)
@@ -275,6 +275,7 @@ r64_ret:
 	nop
 
 #endif
+
 	.export pc_in_user_space
 	.text
 	/* Doesn't belong here but I couldn't find a nicer spot. */
@@ -283,3 +284,17 @@ pc_in_user_space:
 	bv,n	0(%rp)
 	nop
 
+
+	.export __canonicalize_funcptr_for_compare
+	.text
+	/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
+	**	GCC 3.3 and later has a new function in libgcc.a for
+	**	comparing function pointers.
+	*/
+__canonicalize_funcptr_for_compare:
+#ifdef __LP64__
+	bve (%r2)
+#else
+	bv %r0(%r2)
+#endif
+	copy %r26,%r28

arch/parisc/kernel/signal.c

@@ -13,7 +13,6 @@
  *  arch/parisc/hpux/signal.c when we figure out how to do them.
  */
 
-#include <linux/version.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
@@ -458,6 +457,8 @@ do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall)
 		if (in_syscall) {
 			/* Check the return code */
 			switch (regs->gr[28]) {
+		        case -ERESTART_RESTARTBLOCK:
+				current_thread_info()->restart_block.fn = do_no_restart_syscall;
 			case -ERESTARTNOHAND:
 				DBG(("ERESTARTNOHAND: returning -EINTR\n"));
 				regs->gr[28] = -EINTR;
@@ -495,7 +496,8 @@ do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall)
 	/* Did we come from a system call? */
 	if (in_syscall) {
 		/* Restart the system call - no handlers present */
-		if (regs->gr[28] == -ERESTARTNOHAND ||
+		if (regs->gr[28] == -ERESTART_RESTARTBLOCK ||
+		    regs->gr[28] == -ERESTARTNOHAND ||
 		    regs->gr[28] == -ERESTARTSYS ||
 		    regs->gr[28] == -ERESTARTNOINTR) {
 			/* Hooray for delayed branching.  We don't

arch/parisc/kernel/sys_parisc.c

@@ -30,8 +30,6 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
 {
 	struct vm_area_struct *vma;
 
-	if (!addr)
-		addr = TASK_UNMAPPED_BASE;
 	addr = PAGE_ALIGN(addr);
 
 	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
@@ -46,17 +44,38 @@ static unsigned long get_unshared_area(unsigned long addr, unsigned long len)
 
 #define DCACHE_ALIGN(addr) (((addr) + (SHMLBA - 1)) &~ (SHMLBA - 1))
 
-static unsigned long get_shared_area(struct inode *inode, unsigned long addr,
-		unsigned long len, unsigned long pgoff)
+/*
+ * We need to know the offset to use.  Old scheme was to look for
+ * existing mapping and use the same offset.  New scheme is to use the
+ * address of the kernel data structure as the seed for the offset.
+ * We'll see how that works...
+ */
+#if 0
+static int get_offset(struct address_space *mapping)
+{
+	struct vm_area_struct *vma = list_entry(mapping->i_mmap_shared.next,
+			struct vm_area_struct, shared);
+	return (vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT)) &
+		(SHMLBA - 1);
+}
+#else
+/* The mapping is cacheline aligned, so there's no information in the bottom
+ * few bits of the address.  We're looking for 10 bits (4MB / 4k), so let's
+ * drop the bottom 8 bits and use bits 8-17.  
+ */
+static int get_offset(struct address_space *mapping)
 {
-	struct vm_area_struct *vma, *first_vma;
-	int offset;
+	int offset = (int) mapping << (PAGE_SHIFT - 8);
+	return offset & 0x3FF000;
+}
+#endif
 
-	first_vma = list_entry(inode->i_mapping->i_mmap_shared.next, struct vm_area_struct, shared);
-	offset = (first_vma->vm_start + ((pgoff - first_vma->vm_pgoff) << PAGE_SHIFT)) & (SHMLBA - 1);
+static unsigned long get_shared_area(struct address_space *mapping,
+		unsigned long addr, unsigned long len, unsigned long pgoff)
+{
+	struct vm_area_struct *vma;
+	int offset = get_offset(mapping);
 
-	if (!addr)
-		addr = TASK_UNMAPPED_BASE;
 	addr = DCACHE_ALIGN(addr - offset) + offset;
 
 	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
@@ -74,17 +93,17 @@ static unsigned long get_shared_area(struct inode *inode, unsigned long addr,
 unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
-	struct inode *inode = NULL;
+	struct inode *inode;
 
 	if (len > TASK_SIZE)
 		return -ENOMEM;
+	if (!addr)
+		addr = TASK_UNMAPPED_BASE;
 
-	if (filp) {
-		inode = filp->f_dentry->d_inode;
-	}
+	inode = filp ? filp->f_dentry->d_inode : NULL;
 
-	if (inode && (flags & MAP_SHARED) && (!list_empty(&inode->i_mapping->i_mmap_shared))) {
-		addr = get_shared_area(inode, addr, len, pgoff);
+	if (inode && (flags & MAP_SHARED)) {
+		addr = get_shared_area(inode->i_mapping, addr, len, pgoff);
 	} else {
 		addr = get_unshared_area(addr, len);
 	}
@@ -185,6 +204,7 @@ extern asmlinkage ssize_t sys_pread64(unsigned int fd, char *buf,
 					size_t count, loff_t pos);
 extern asmlinkage ssize_t sys_pwrite64(unsigned int fd, const char *buf,
 					size_t count, loff_t pos);
+extern asmlinkage ssize_t sys_readahead(int fd, loff_t offset, size_t count);
 
 asmlinkage ssize_t parisc_pread64(unsigned int fd, char *buf, size_t count,
 					unsigned int high, unsigned int low)
@@ -198,6 +218,11 @@ asmlinkage ssize_t parisc_pwrite64(unsigned int fd, const char *buf,
 	return sys_pwrite64(fd, buf, count, (loff_t)high << 32 | low);
 }
 
+asmlinkage ssize_t parisc_readahead(int fd, unsigned int high, unsigned int low,
+		                    size_t count)
+{
+	return sys_readahead(fd, (loff_t)high << 32 | low, count);
+}
 
 /*
  * FIXME, please remove this crap as soon as possible
@@ -271,7 +296,7 @@ static int copyout_broken_shmid64(struct broken_shmid64_ds *buf, struct shmid64_
 	tbuf.shm_cpid = sbuf->shm_cpid;
 	tbuf.shm_lpid = sbuf->shm_lpid;
 	tbuf.shm_nattch = sbuf->shm_nattch;
-	return copy_to_user(buf, &tbuf, sizeof tbuf);
+	return copy_to_user(buf, &tbuf, sizeof tbuf) ? -EFAULT : 0;
 }
 
 int sys_msgctl_broken(int msqid, int cmd, struct msqid_ds *buf)

arch/parisc/kernel/sys_parisc32.c

@@ -46,6 +46,7 @@
 #include <linux/namei.h>
 #include <linux/vfs.h>
 #include <linux/ptrace.h>
+#include <linux/swap.h>
 
 #include <asm/types.h>
 #include <asm/uaccess.h>
@@ -373,18 +374,16 @@ put_compat_timeval(struct compat_timeval *u, struct timeval *t)
 	return copy_to_user(u, &t32, sizeof t32);
 }
 
-static int
-get_compat_timeval(struct compat_timeval *u, struct timeval *t)
+static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
 {
-	int err;
-	struct compat_timeval t32;
+	long usec;
 
-	if ((err = copy_from_user(&t32, u, sizeof t32)) == 0)
-	{
-	    t->tv_sec = t32.tv_sec;
-	    t->tv_usec = t32.tv_usec;
-	}
-	return err;
+	if (__get_user(o->tv_sec, &i->tv_sec))
+		return -EFAULT;
+	if (__get_user(usec, &i->tv_usec))
+		return -EFAULT;
+	o->tv_nsec = usec * 1000;
+	return 0;
 }
 
 asmlinkage long sys32_time(compat_time_t *tloc)
@@ -418,23 +417,22 @@ sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
     return 0;
 }
 
-asmlinkage int
-sys32_settimeofday(struct compat_timespec *tv, struct timezone *tz)
+asmlinkage 
+int sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
 {
-    struct timeval ktv;
-    struct timezone ktz;
-    extern int do_sys_settimeofday(struct timespec *tv, struct timezone *tz);
+	struct timespec kts;
+	struct timezone ktz;
 
-    if (tv) {
-	    if (get_compat_timeval(tv, &ktv))
-		    return -EFAULT;
-    }
-    if (tz) {
-	    if (copy_from_user(&ktz, tz, sizeof(ktz)))
-		    return -EFAULT;
-    }
+ 	if (tv) {
+		if (get_ts32(&kts, tv))
+			return -EFAULT;
+	}
+	if (tz) {
+		if (copy_from_user(&ktz, tz, sizeof(ktz)))
+			return -EFAULT;
+	}
 
-    return do_sys_settimeofday(tv ? &ktv : NULL, tz ? &ktz : NULL);
+	return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
 }
 
 int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
@@ -1089,6 +1087,27 @@ asmlinkage long sys32_msgrcv(int msqid,
 	return err;
 }
 
+
+extern asmlinkage ssize_t sys_sendfile(int out_fd, int in_fd, off_t *offset, size_t count);
+asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, s32 count)
+{
+        mm_segment_t old_fs = get_fs();
+        int ret;
+        off_t of;
+
+        if (offset && get_user(of, offset))
+                return -EFAULT;
+
+        set_fs(KERNEL_DS);
+        ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
+        set_fs(old_fs);
+
+        if (offset && put_user(of, offset))
+                return -EFAULT;
+
+        return ret;
+}
+
 /* EXPORT/UNEXPORT */
 struct nfsctl_export32 {
 	char		ex_client[NFSCLNT_IDMAX+1];

arch/parisc/kernel/syscall.S

@@ -483,7 +483,7 @@ sys_call_table:
 	ENTRY_SAME(madvise)
 	ENTRY_SAME(clone_wrapper)	/* 120 */
 	ENTRY_SAME(setdomainname)
-	ENTRY_SAME(sendfile)
+	ENTRY_DIFF(sendfile)
 	/* struct sockaddr... */
 	ENTRY_SAME(recvfrom)
 	/* struct timex contains longs */
@@ -592,7 +592,7 @@ sys_call_table:
 	ENTRY_SAME(ni_syscall)
 	ENTRY_SAME(ni_syscall)		/* 205 */
 	ENTRY_SAME(gettid)             
-	ENTRY_SAME(readahead)          
+	ENTRY_OURS(readahead)          
 	ENTRY_SAME(ni_syscall)		/* tkill */
 
 	ENTRY_SAME(sendfile64)

arch/parisc/kernel/traps.c

@@ -221,6 +221,8 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
 		return;
 	}
 
+	oops_in_progress = 1;
+
 	/* Amuse the user in a SPARC fashion */
 	printk(
 "      _______________________________ \n"
@@ -414,6 +416,8 @@ void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long o
 {
 	static spinlock_t terminate_lock = SPIN_LOCK_UNLOCKED;
 
+	oops_in_progress = 1;
+
 	set_eiem(0);
 	local_irq_disable();
 	spin_lock(&terminate_lock);

arch/parisc/nm

+#!/bin/sh
+##
+# Hack to have an nm which removes the local symbols.  We also rely
+# on this nm being hidden out of the ordinarily executable path
+##
+${CROSS_COMPILE}nm $* | grep -v '.LC*[0-9]*$'

drivers/parisc/asp.c

@@ -76,8 +76,6 @@ asp_init_chip(struct parisc_device *dev)
 
 	printk(KERN_INFO "%s version %d at 0x%lx found.\n", 
 		asp->name, asp->version, dev->hpa);
-	snprintf(dev->dev.name, sizeof(dev->dev.name), "%s version %d",
-		 asp->name, asp->version);
 
 	/* the IRQ ASP should use */
 	ret = -EBUSY;

drivers/parisc/ccio-dma.c

@@ -129,6 +129,92 @@ struct ioa_registers {
         volatile uint32_t   io_io_high;             /* Offset 15 */
 };
 
+/*
+** IOA Registers
+** -------------
+**
+** Runway IO_CONTROL Register (+0x38)
+** 
+** The Runway IO_CONTROL register controls the forwarding of transactions.
+**
+** | 0  ...  13  |  14 15 | 16 ... 21 | 22 | 23 24 |  25 ... 31 |
+** |    HV       |   TLB  |  reserved | HV | mode  |  reserved  |
+**
+** o mode field indicates the address translation of transactions
+**   forwarded from Runway to GSC+:
+**       Mode Name     Value        Definition
+**       Off (default)   0          Opaque to matching addresses.
+**       Include         1          Transparent for matching addresses.
+**       Peek            3          Map matching addresses.
+**
+**       + "Off" mode: Runway transactions which match the I/O range
+**         specified by the IO_IO_LOW/IO_IO_HIGH registers will be ignored.
+**       + "Include" mode: all addresses within the I/O range specified
+**         by the IO_IO_LOW and IO_IO_HIGH registers are transparently
+**         forwarded. This is the I/O Adapter's normal operating mode.
+**       + "Peek" mode: used during system configuration to initialize the
+**         GSC+ bus. Runway Write_Shorts in the address range specified by
+**         IO_IO_LOW and IO_IO_HIGH are forwarded through the I/O Adapter
+**         *AND* the GSC+ address is remapped to the Broadcast Physical
+**         Address space by setting the 14 high order address bits of the
+**         32 bit GSC+ address to ones.
+**
+** o TLB field affects transactions which are forwarded from GSC+ to Runway.
+**   "Real" mode is the poweron default.
+** 
+**   TLB Mode  Value  Description
+**   Real        0    No TLB translation. Address is directly mapped and the
+**                    virtual address is composed of selected physical bits.
+**   Error       1    Software fills the TLB manually.
+**   Normal      2    IOA fetches IO TLB misses from IO PDIR (in host memory).
+**
+**
+** IO_IO_LOW_HV	  +0x60 (HV dependent)
+** IO_IO_HIGH_HV  +0x64 (HV dependent)
+** IO_IO_LOW      +0x78	(Architected register)
+** IO_IO_HIGH     +0x7c	(Architected register)
+**
+** IO_IO_LOW and IO_IO_HIGH set the lower and upper bounds of the
+** I/O Adapter address space, respectively.
+**
+** 0  ... 7 | 8 ... 15 |  16   ...   31 |
+** 11111111 | 11111111 |      address   |
+**
+** Each LOW/HIGH pair describes a disjoint address space region.
+** (2 per GSC+ port). Each incoming Runway transaction address is compared
+** with both sets of LOW/HIGH registers. If the address is in the range
+** greater than or equal to IO_IO_LOW and less than IO_IO_HIGH the transaction
+** for forwarded to the respective GSC+ bus.
+** Specify IO_IO_LOW equal to or greater than IO_IO_HIGH to avoid specifying
+** an address space region.
+**
+** In order for a Runway address to reside within GSC+ extended address space:
+**	Runway Address [0:7]    must identically compare to 8'b11111111
+**	Runway Address [8:11]   must be equal to IO_IO_LOW(_HV)[16:19]
+** 	Runway Address [12:23]  must be greater than or equal to
+**	           IO_IO_LOW(_HV)[20:31] and less than IO_IO_HIGH(_HV)[20:31].
+**	Runway Address [24:39]  is not used in the comparison.
+**
+** When the Runway transaction is forwarded to GSC+, the GSC+ address is
+** as follows:
+**	GSC+ Address[0:3]	4'b1111
+**	GSC+ Address[4:29]	Runway Address[12:37]
+**	GSC+ Address[30:31]	2'b00
+**
+** All 4 Low/High registers must be initialized (by PDC) once the lower bus
+** is interrogated and address space is defined. The operating system will
+** modify the architectural IO_IO_LOW and IO_IO_HIGH registers following
+** the PDC initialization.  However, the hardware version dependent IO_IO_LOW
+** and IO_IO_HIGH registers should not be subsequently altered by the OS.
+** 
+** Writes to both sets of registers will take effect immediately, bypassing
+** the queues, which ensures that subsequent Runway transactions are checked
+** against the updated bounds values. However reads are queued, introducing
+** the possibility of a read being bypassed by a subsequent write to the same
+** register. This sequence can be avoided by having software wait for read
+** returns before issuing subsequent writes.
+*/
+
 struct ioc {
 	struct ioa_registers *ioc_hpa;  /* I/O MMU base address */
 	u8  *res_map;	                /* resource map, bit == pdir entry */
@@ -1448,13 +1534,74 @@ static void __init ccio_init_resources(struct ioc *ioc)
 			(unsigned long)&ioc->ioc_hpa->io_io_low_hv);
 }
 
-static void expand_ioc_area(struct ioc *ioc, unsigned long size,
-		unsigned long min, unsigned long max, unsigned long align)
+static int expand_resource(struct resource *res, unsigned long size,
+			   unsigned long align)
 {
-#ifdef NASTY_HACK_FOR_K_CLASS
-	__raw_writel(0xfffff600, (unsigned long)&(ioc->ioc_hpa->io_io_high));
-	ioc->mmio_region[0].end = 0xf5ffffff;
-#endif
+	struct resource *temp_res;
+	unsigned long start = res->start;
+	unsigned long end ;
+
+	/* see if we can expand above */
+	end = (res->end + size + align - 1) & ~(align - 1);;
+	
+	temp_res = __request_region(res->parent, res->end, end - res->end,
+				    "expansion");
+	if(!temp_res) {
+		/* now try below */
+		start = ((res->start - size + align) & ~(align - 1)) - align;
+		end = res->end;
+		temp_res = __request_region(res->parent, start, size,
+					    "expansion");	
+		if(!temp_res) {
+			return -ENOMEM;
+		}
+	} 
+	release_resource(temp_res);
+	temp_res = res->parent;
+	release_resource(res);
+	res->start = start;
+	res->end = end;
+
+	/* This could be caused by some sort of race.  Basically, if
+	 * this tripped something stole the region we just reserved
+	 * and then released to check for expansion */
+	BUG_ON(request_resource(temp_res, res) != 0);
+
+	return 0;
+}
+
+static void expand_ioc_area(struct resource *parent, struct ioc *ioc,
+			    unsigned long size,	unsigned long min,
+			    unsigned long max, unsigned long align)
+{
+	if(ioc == NULL)
+		/* no IOC, so nothing to expand */
+		return;
+
+	if (expand_resource(parent, size, align) != 0) {
+		printk(KERN_ERR "Unable to expand %s window by 0x%lx\n",
+		       parent->name, size);
+		return;
+	}
+
+	/* OK, we have the memory, now expand the window */
+	if (parent == &ioc->mmio_region[0]) {
+		__raw_writel(((parent->start)>>16) | 0xffff0000,
+			     (unsigned long)&(ioc->ioc_hpa->io_io_low));
+		__raw_writel(((parent->end)>>16) | 0xffff0000,
+			     (unsigned long)&(ioc->ioc_hpa->io_io_high));
+	} else if (parent == &ioc->mmio_region[1]) {
+		__raw_writel(((parent->start)>>16) | 0xffff0000,
+			     (unsigned long)&(ioc->ioc_hpa->io_io_low_hv));
+		__raw_writel(((parent->end)>>16) | 0xffff0000,
+			     (unsigned long)&(ioc->ioc_hpa->io_io_high_hv));
+	} else {
+		/* This should be impossible.  It means
+		 * expand_ioc_area got called with a resource that
+		 * didn't belong to the ioc
+		 */
+		BUG();
+	}
 }
 
 static struct resource *ccio_get_resource(struct ioc* ioc,
@@ -1488,7 +1635,7 @@ int ccio_allocate_resource(const struct parisc_device *dev,
 			alignf_data))
 		return 0;
 
-	expand_ioc_area(ioc, size, min, max, align);
+	expand_ioc_area(parent, ioc, size, min, max, align);
 	return allocate_resource(parent, res, size, min, max, align, alignf,
 			alignf_data);
 }
@@ -1522,7 +1669,6 @@ static int ccio_probe(struct parisc_device *dev)
 	memset(ioc, 0, sizeof(struct ioc));
 
 	ioc->name = dev->id.hversion == U2_IOA_RUNWAY ? "U2" : "UTurn";
-	strlcpy(dev->dev.name, ioc->name, sizeof(dev->dev.name));
 
 	printk(KERN_INFO "Found %s at 0x%lx\n", ioc->name, dev->hpa);
 

drivers/parisc/dino.c

@@ -401,23 +401,7 @@ dino_isr(int irq, void *intr_dev, struct pt_regs *regs)
 	{
 		int irq;
 
-		/*
-		 * Perform a binary search on set bits.
-		 * `Less than Fatal' and PS2 interrupts aren't supported.
-		 */
-		if (mask & 0xf) {
-			if (mask & 0x3) {
-				irq = (mask & 0x1) ? 0 : 1; /* PCI INT A, B */
-			} else {
-				irq = (mask & 0x4) ? 2 : 3; /* PCI INT C, D */
-			}
-		} else {
-			if (mask & 0x30) {
-				irq = (mask & 0x10) ? 4 : 5; /* PCI INT E, F */
-			} else {
-				irq = (mask & 0x40) ? 6 : 10; /* GSC, RS232 */
-			}
-		}
+		irq = __ffs(mask);
 
 		mask &= ~(1<<irq);
 
@@ -440,7 +424,7 @@ dino_isr(int irq, void *intr_dev, struct pt_regs *regs)
 	if (mask) {
 		if (--ilr_loop > 0)
 			goto ilr_again;
-		printk("Dino %lx: stuck interrupt %d\n", dino_dev->hba.base_addr, mask);
+		printk(KERN_ERR "Dino %lx: stuck interrupt %d\n", dino_dev->hba.base_addr, mask);
 		return IRQ_NONE;
 	}
 	return IRQ_HANDLED;
@@ -479,15 +463,35 @@ dino_card_setup(struct pci_bus *bus, unsigned long base_addr)
 	int i;
 	struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->dev));
 	struct resource *res;
+	char name[128];
+	int size;
 
 	res = &dino_dev->hba.lmmio_space;
 	res->flags = IORESOURCE_MEM;
+	size = snprintf(name, sizeof(name), "Dino LMMIO (%s)", bus->dev->bus_id);
+	res->name = kmalloc(size+1, GFP_KERNEL);
+	if(res->name)
+		strcpy((char *)res->name, name);
+	else
+		res->name = dino_dev->hba.lmmio_space.name;
+	
 
 	if (ccio_allocate_resource(dino_dev->hba.dev, res, _8MB,
-				(unsigned long) 0xfffffffff0000000UL | _8MB,
-				0xffffffffffffffffUL &~ _8MB, _8MB,
+				F_EXTEND(0xf0000000UL) | _8MB,
+				F_EXTEND(0xffffffffUL) &~ _8MB, _8MB,
 				NULL, NULL) < 0) {
-		printk(KERN_WARNING "Dino: Failed to allocate memory region\n");
+		struct list_head *ln, *tmp_ln;
+
+		printk(KERN_ERR "Dino: cannot attach bus %s\n",
+		       bus->dev->bus_id);
+		/* kill the bus, we can't do anything with it */
+		list_for_each_safe(ln, tmp_ln, &bus->devices) {
+			struct pci_dev *dev = pci_dev_b(ln);
+
+			list_del(&dev->global_list);
+			list_del(&dev->bus_list);
+		}
+			
 		return;
 	}
 	bus->resource[1] = res;
@@ -495,9 +499,11 @@ dino_card_setup(struct pci_bus *bus, unsigned long base_addr)
 
 	/* Now tell dino what range it has */
 	for (i = 1; i < 31; i++) {
-		if (res->start == (0xfffffffff0000000UL | i * _8MB))
+		if (res->start == F_EXTEND(0xf0000000UL | (i * _8MB)))
 			break;
 	}
+	DBG("DINO GSC WRITE i=%d, start=%lx, dino addr = %lx\n",
+	    i, res->start, base_addr + DINO_IO_ADDR_EN);
 	gsc_writel(1 << i, base_addr + DINO_IO_ADDR_EN);
 
 	pci_bus_assign_resources(bus);
@@ -521,7 +527,7 @@ dino_card_fixup(struct pci_dev *dev)
 	** Set Latency Timer to 0xff (not a shared bus)
 	** Set CACHELINE_SIZE.
 	*/
-	dino_cfg_write(dev->bus, dev->devfn, PCI_CACHE_LINE_SIZE, 16, 0xff00 | L1_CACHE_BYTES/4); 
+	dino_cfg_write(dev->bus, dev->devfn, PCI_CACHE_LINE_SIZE, 2, 0xff00 | L1_CACHE_BYTES/4); 
 
 	/*
 	** Program INT_LINE for card-mode devices.
@@ -532,13 +538,13 @@ dino_card_fixup(struct pci_dev *dev)
 	** "-1" converts INTA-D (1-4) to PCIINTA-D (0-3) range.
 	** The additional "-1" adjusts for skewing the IRQ<->slot.
 	*/
-	dino_cfg_read(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 8, &irq_pin); 
+	dino_cfg_read(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 1, &irq_pin); 
 	dev->irq = (irq_pin + PCI_SLOT(dev->devfn) - 1) % 4 ;
 
 	/* Shouldn't really need to do this but it's in case someone tries
 	** to bypass PCI services and look at the card themselves.
 	*/
-	dino_cfg_write(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, 8, dev->irq); 
+	dino_cfg_write(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, 1, dev->irq); 
 }
 
 
@@ -585,8 +591,8 @@ dino_fixup_bus(struct pci_bus *bus)
 #ifdef __LP64__
 			/* Sign Extend MMIO addresses */
 			else if (res->flags & IORESOURCE_MEM) {
-				res->start |= 0xffffffff00000000UL;
-				res->end   |= 0xffffffff00000000UL;
+				res->start |= F_EXTEND(0UL);
+				res->end   |= F_EXTEND(0UL);
 			}
 #endif
 		}
@@ -789,8 +795,8 @@ static int __init dino_common_init(struct parisc_device *dev,
 	return 0;
 }
 
-#define CUJO_RAVEN_ADDR		0xfffffffff1000000UL
-#define CUJO_FIREHAWK_ADDR	0xfffffffff1604000UL
+#define CUJO_RAVEN_ADDR		F_EXTEND(0xf1000000UL)
+#define CUJO_FIREHAWK_ADDR	F_EXTEND(0xf1604000UL)
 #define CUJO_RAVEN_BADPAGE	0x01003000UL
 #define CUJO_FIREHAWK_BADPAGE	0x01607000UL
 
@@ -818,9 +824,16 @@ dino_driver_callback(struct parisc_device *dev)
 {
 	struct dino_device *dino_dev;	// Dino specific control struct
 	const char *version = "unknown";
-	const char *name = "Dino";
+	const int name_len = 32;
+	char *name;
 	int is_cujo = 0;
 
+	name = kmalloc(name_len, GFP_KERNEL);
+	if(name)
+		snprintf(name, name_len, "Dino %s", dev->dev.bus_id);
+	else
+		name = "Dino";
+
 	if (is_card_dino(&dev->id)) {
 		version = "3.x (card mode)";
 	} else {
@@ -838,8 +851,6 @@ dino_driver_callback(struct parisc_device *dev)
 	}
 
 	printk("%s version %s found at 0x%lx\n", name, version, dev->hpa);
-	snprintf(dev->dev.name, sizeof(dev->dev.name), 
-		 "%s version %s", name, version);
 
 	if (!request_mem_region(dev->hpa, PAGE_SIZE, name)) {
 		printk(KERN_ERR "DINO: Hey! Someone took my MMIO space (0x%ld)!\n",

drivers/parisc/eisa.c

@@ -327,14 +327,13 @@ static int __devinit eisa_probe(struct parisc_device *dev)
 
 	printk(KERN_INFO "%s EISA Adapter found at 0x%08lx\n", 
 		name, dev->hpa);
-	snprintf(dev->dev.name, sizeof(dev->dev.name), "%s EISA", name);
 
 	eisa_dev.hba.dev = dev;
 	eisa_dev.hba.iommu = ccio_get_iommu(dev);
 
 	eisa_dev.hba.lmmio_space.name = "EISA";
-	eisa_dev.hba.lmmio_space.start = (unsigned long) 0xfffffffffc000000;
-	eisa_dev.hba.lmmio_space.end = (unsigned long) 0xffffffffffbfffff;
+	eisa_dev.hba.lmmio_space.start = F_EXTEND(0xfc000000);
+	eisa_dev.hba.lmmio_space.end = F_EXTEND(0xffbfffff);
 	eisa_dev.hba.lmmio_space.flags = IORESOURCE_MEM;
 	result = ccio_request_resource(dev, &eisa_dev.hba.lmmio_space);
 	if (result < 0) {

drivers/parisc/hppb.c

@@ -70,7 +70,6 @@ static int hppb_probe(struct parisc_device *dev)
 		card = card->next;
 	}
         printk(KERN_INFO "Found GeckoBoa at 0x%lx\n", dev->hpa);
-	snprintf(dev->dev.name, sizeof(dev->dev.name), "GeckoBoa");
 
 	card->hpa = dev->hpa;
 	card->mmio_region.name = "HP-PB Bus";

drivers/parisc/iosapic.c

@@ -643,7 +643,7 @@ iosapic_fixup_irq(void *isi_obj, struct pci_dev *pcidev)
 
 	if (NULL == isi) {
 		printk(KERN_WARNING MODULE_NAME ": hpa not registered for %s\n",
-			pcidev->dev.name);
+			pci_name(pcidev));
 		return(-1);
 	}
 

drivers/parisc/lasi.c

@@ -185,8 +185,6 @@ lasi_init_chip(struct parisc_device *dev)
 	lasi->version = gsc_readl(lasi->hpa + LASI_VER) & 0xf;
 	printk(KERN_INFO "%s version %d at 0x%lx found.\n",
 		lasi->name, lasi->version, lasi->hpa);
-	snprintf(dev->dev.name, sizeof(dev->dev.name), "%s version %d",
-		 lasi->name, lasi->version);
 
 	/* initialize the chassis LEDs really early */ 
 	lasi_led_init(lasi->hpa);

drivers/parisc/lba_pci.c

@@ -782,7 +782,7 @@ lba_fixup_bus(struct pci_bus *bus)
 		int i;
 		struct pci_dev *dev = pci_dev_b(ln);
 
-		DBG("lba_fixup_bus() %s\n", dev->name);
+		DBG("lba_fixup_bus() %s\n", pci_name(dev));
 
 		/* Virtualize Device/Bridge Resources. */
 		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
@@ -1358,8 +1358,6 @@ lba_driver_callback(struct parisc_device *dev)
 
 	printk(KERN_INFO "%s version %s (0x%x) found at 0x%lx\n",
 		MODULE_NAME, version, func_class & 0xf, dev->hpa);
-	snprintf(dev->dev.name, sizeof(dev->dev.name), "%s version %s",
-		 MODULE_NAME, version);
 
 	/* Just in case we find some prototypes... */
 	if (func_class < 2) {

drivers/parisc/led.c

@@ -91,7 +91,7 @@ struct pdc_chassis_lcd_info_ret_block {
 
 
 /* LCD_CMD and LCD_DATA for KittyHawk machines */
-#define KITTYHAWK_LCD_CMD  (0xfffffffff0190000UL) /* 64bit-ready */
+#define KITTYHAWK_LCD_CMD  F_EXTEND(0xf0190000UL) /* 64bit-ready */
 #define KITTYHAWK_LCD_DATA (KITTYHAWK_LCD_CMD+1)
 
 /* lcd_info is pre-initialized to the values needed to program KittyHawk LCD's 

drivers/parisc/sba_iommu.c

@@ -1978,8 +1978,6 @@ sba_driver_callback(struct parisc_device *dev)
 
 	printk(KERN_INFO "%s found %s at 0x%lx\n",
 		MODULE_NAME, version, dev->hpa);
-	snprintf(dev->dev.name, sizeof(dev->dev.name), "%s version %s",
-		 MODULE_NAME, version);
 
 #ifdef DEBUG_SBA_INIT
 	sba_dump_tlb(dev->hpa);

drivers/parisc/wax.c

@@ -83,8 +83,6 @@ wax_init_chip(struct parisc_device *dev)
 
 	wax->version = 0;   /* gsc_readb(wax->hpa+WAX_VER); */
 	printk(KERN_INFO "%s at 0x%lx found.\n", wax->name, wax->hpa);
-	snprintf(dev->dev.name, sizeof(dev->dev.name), "%s version %d",
-		 wax->name, wax->version);
 
 	/* Stop wax hissing for a bit */
 	wax_init_irq(wax);

include/asm-parisc/atomic.h

@@ -49,27 +49,14 @@ extern spinlock_t __atomic_hash[ATOMIC_HASH_SIZE];
  * Cache-line alignment would conflict with, for example, linux/module.h
  */
 
-typedef struct {
-	volatile int counter;
-} atomic_t;
+typedef struct { volatile long counter; } atomic_t;
 
 
-/*
-** xchg/cmpxchg moved from asm/system.h - ggg
-*/
-
-#if 1
 /* This should get optimized out since it's never called.
 ** Or get a link error if xchg is used "wrong".
 */
 extern void __xchg_called_with_bad_pointer(void);
-#else
-static inline void __xchg_called_with_bad_pointer(void)
-{
-	extern void panic(const char * fmt, ...);
-	panic("xchg called with bad pointer");
-}
-#endif
+
 
 /* __xchg32/64 defined in arch/parisc/lib/bitops.c */
 extern unsigned long __xchg8(char, char *);

include/asm-parisc/bitops.h

@@ -203,55 +203,102 @@ static __inline__ int test_bit(int nr, const void *address)
 	return !!(*addr & mask);
 }
 
-extern __inline__ unsigned long ffz(unsigned long word)
-{
-	unsigned long result;
-
-	result = 0;
-	while (word & 1) {
-		result++;
-		word >>= 1;
-	}
-
-	return result;
-}
-
 #ifdef __KERNEL__
 
 /**
- * __ffs - find first bit in word.
+ * __ffs - find first bit in word. returns 0 to "BITS_PER_LONG-1".
  * @word: The word to search
  *
- * Undefined if no bit exists, so code should check against 0 first.
+ * __ffs() return is undefined if no bit is set.
+ *
+ * 32-bit fast __ffs by LaMont Jones "lamont At hp com".
+ * 64-bit enhancement by Grant Grundler "grundler At parisc-linux org".
+ * (with help from willy/jejb to get the semantics right)
+ *
+ * This algorithm avoids branches by making use of nullification.
+ * One side effect of "extr" instructions is it sets PSW[N] bit.
+ * How PSW[N] (nullify next insn) gets set is determined by the 
+ * "condition" field (eg "<>" or "TR" below) in the extr* insn.
+ * Only the 1st and one of either the 2cd or 3rd insn will get executed.
+ * Each set of 3 insn will get executed in 2 cycles on PA8x00 vs 16 or so
+ * cycles for each mispredicted branch.
  */
-static __inline__ unsigned long __ffs(unsigned long word)
-{
-	unsigned long result = 0;
 
-	while (!(word & 1UL)) {
-		result++;
-		word >>= 1;
-	}
-	return result;
+static __inline__ unsigned long __ffs(unsigned long x)
+{
+	unsigned long ret;
+
+	__asm__(
+#if BITS_PER_LONG > 32
+		" ldi       63,%1\n"
+		" extrd,u,*<>  %0,63,32,%%r0\n"
+		" extrd,u,*TR  %0,31,32,%0\n"
+		" addi    -32,%1,%1\n"
+#else
+		" ldi       31,%1\n"
+#endif
+		" extru,<>  %0,31,16,%%r0\n"
+		" extru,TR  %0,15,16,%0\n"
+		" addi    -16,%1,%1\n"
+		" extru,<>  %0,31,8,%%r0\n"
+		" extru,TR  %0,23,8,%0\n"
+		" addi    -8,%1,%1\n"
+		" extru,<>  %0,31,4,%%r0\n"
+		" extru,TR  %0,27,4,%0\n"
+		" addi    -4,%1,%1\n"
+		" extru,<>  %0,31,2,%%r0\n"
+		" extru,TR  %0,29,2,%0\n"
+		" addi    -2,%1,%1\n"
+		" extru,=  %0,31,1,%%r0\n"
+		" addi    -1,%1,%1\n"
+			: "+r" (x), "=r" (ret) );
+	return ret;
 }
 
+/* Undefined if no bit is zero. */
+#define ffz(x)	__ffs(~x)
+
 /*
- * ffs: find first bit set. This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
+ * ffs: find first bit set. returns 1 to BITS_PER_LONG or 0 (if none set)
+ * This is defined the same way as the libc and compiler builtin
+ * ffs routines, therefore differs in spirit from the above ffz (man ffs).
  */
 static __inline__ int ffs(int x)
 {
-	if (!x)
-		return 0;
-	return __ffs((unsigned long)x);
+	return x ? (__ffs((unsigned long)x) + 1) : 0;
 }
 
 /*
- * fls: find last bit set.
+ * fls: find last (most significant) bit set.
+ * fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
  */
 
-#define fls(x) generic_fls(x)
+static __inline__ int fls(int x)
+{
+	int ret;
+	if (!x)
+		return 0;
+
+	__asm__(
+	"	ldi		1,%1\n"
+	"	extru,<>	%0,15,16,%%r0\n"
+	"	zdep,TR		%0,15,16,%0\n"		/* xxxx0000 */
+	"	addi		16,%1,%1\n"
+	"	extru,<>	%0,7,8,%%r0\n"
+	"	zdep,TR		%0,23,24,%0\n"		/* xx000000 */
+	"	addi		8,%1,%1\n"
+	"	extru,<>	%0,3,4,%%r0\n"
+	"	zdep,TR		%0,27,28,%0\n"		/* x0000000 */
+	"	addi		4,%1,%1\n"
+	"	extru,<>	%0,1,2,%%r0\n"
+	"	zdep,TR		%0,29,30,%0\n"		/* y0000000 (y&3 = 0 */
+	"	addi		2,%1,%1\n"
+	"	extru,=		%0,0,1,%%r0\n"
+	"	addi		1,%1,%1\n"		/* if y & 8, add 1 */
+		: "+r" (x), "=r" (ret) );
+
+	return ret;
+}
 
 /*
  * hweightN: returns the hamming weight (i.e. the number

include/asm-parisc/byteorder.h

@@ -5,6 +5,25 @@
 
 #ifdef __GNUC__
 
+static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
+{
+	__asm__("dep %0, 15, 8, %0\n\t"		/* deposit 00ab -> 0bab */
+		"shd %%r0, %0, 8, %0"		/* shift 000000ab -> 00ba */
+		: "=r" (x)
+		: "0" (x));
+	return x;
+}
+
+static __inline__ __const__ __u32 ___arch__swab24(__u32 x)
+{
+	__asm__("shd %0, %0, 8, %0\n\t"		/* shift xabcxabc -> cxab */
+		"dep %0, 15, 8, %0\n\t"		/* deposit cxab -> cbab */
+		"shd %%r0, %0, 8, %0"		/* shift 0000cbab -> 0cba */
+		: "=r" (x)
+		: "0" (x));
+	return x;
+}
+
 static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
 {
 	unsigned int temp;
@@ -39,34 +58,21 @@ static __inline__ __const__ __u64 ___arch__swab64(__u64 x) {
 	return x;
 }
 #define __arch__swab64(x) ___arch__swab64(x)
-#else
+#define __BYTEORDER_HAS_U64__
+#elif !defined(__STRICT_ANSI__)
 static __inline__ __const__ __u64 ___arch__swab64(__u64 x)
 {
-	__u32 t1 = (__u32) x;
-	__u32 t2 = (__u32) ((x) >> 32);
-	___arch__swab32(t1);
-	___arch__swab32(t2);
-	return (((__u64) t1 << 32) + ((__u64) t2));
+	__u32 t1 = ___arch__swab32((__u32) x);
+	__u32 t2 = ___arch__swab32((__u32) (x >> 32));
+	return (((__u64) t1 << 32) | t2);
 }
+#define __arch__swab64(x) ___arch__swab64(x)
+#define __BYTEORDER_HAS_U64__
 #endif
 
-
-static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
-{
-	__asm__("dep %0, 15, 8, %0\n\t"		/* deposit 00ab -> 0bab */
-		"shd %r0, %0, 8, %0"		/* shift 000000ab -> 00ba */
-		: "=r" (x)
-		: "0" (x));
-	return x;
-}
-
-#define __arch__swab32(x) ___arch__swab32(x)
 #define __arch__swab16(x) ___arch__swab16(x)
-
-#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-#  define __BYTEORDER_HAS_U64__
-#  define __SWAB_64_THRU_32__
-#endif
+#define __arch__swab24(x) ___arch__swab24(x)
+#define __arch__swab32(x) ___arch__swab32(x)
 
 #endif /* __GNUC__ */
 

include/asm-parisc/cacheflush.h

@@ -78,8 +78,9 @@ static inline void flush_dcache_page(struct page *page)
 
 #define flush_icache_range(s,e)		do { flush_kernel_dcache_range_asm(s,e); flush_kernel_icache_range_asm(s,e); } while (0)
 
-#define flush_icache_user_range(vma, page, addr, len) \
-	flush_icache_page((vma), (page))
+#define flush_icache_user_range(vma, page, addr, len) do { \
+        flush_user_dcache_range(addr, addr + len); \
+	flush_user_icache_range(addr, addr + len); } while (0)
 
 static inline void flush_cache_range(struct vm_area_struct *vma,
 		unsigned long start, unsigned long end)

include/asm-parisc/elf.h

@@ -283,6 +283,7 @@ struct pt_regs;	/* forward declaration... */
  */
 #define ELF_DATA	ELFDATA2MSB
 #define ELF_ARCH	EM_PARISC
+#define ELF_OSABI 	ELFOSABI_LINUX
 
 /* %r23 is set by ld.so to a pointer to a function which might be 
    registered using atexit.  This provides a mean for the dynamic

include/asm-parisc/hil.h

-#ifndef _ASM_HIL_H
-#define _ASM_HIL_H
-
-/*
- *	linux/asm-parisc/hil.h
- *
- *	(c) 1999 Matthew Wilcox
- */
-
-extern unsigned long hil_base;	/* declared in drivers/parisc/hil.c */
-extern unsigned int hil_irq;
-
-#define HILBASE			hil_base /* 0xf0821000 (old) or 0xf0201000 (new) */
-#define HIL_DATA		0x800
-#define HIL_CMD			0x801
-
-#define HIL_IRQ			hil_irq
-
-#define hil_busy()		(gsc_readb(HILBASE + HIL_CMD) & HIL_BUSY)
-#define hil_data_available()	(gsc_readb(HILBASE + HIL_CMD) & HIL_DATA_RDY)
-#define hil_status()		(gsc_readb(HILBASE + HIL_CMD))
-#define hil_command(x)		do { gsc_writeb((x), HILBASE + HIL_CMD); } while (0)
-#define hil_read_data()		(gsc_readb(HILBASE + HIL_DATA))
-#define hil_write_data(x)	do { gsc_writeb((x), HILBASE + HIL_DATA); } while (0)
-
-#endif

include/asm-parisc/io.h

@@ -291,4 +291,11 @@ extern void outsl (unsigned long port, const void *src, unsigned long count);
 #define dma_cache_wback(_start,_size)		do { flush_kernel_dcache_range(_start,_size); } while (0)
 #define dma_cache_wback_inv(_start,_size)	do { flush_kernel_dcache_range(_start,_size); } while (0)
 
+/* PA machines have an MM I/O space from 0xf0000000-0xffffffff in 32
+ * bit mode and from 0xfffffffff0000000-0xfffffffffffffff in 64 bit
+ * mode (essentially just sign extending.  This macro takes in a 32
+ * bit I/O address (still with the leading f) and outputs the correct
+ * value for either 32 or 64 bit mode */
+#define F_EXTEND(x) ((unsigned long)((x) | (0xffffffff00000000ULL)))
+
 #endif

include/asm-parisc/local.h

+#ifndef _ARCH_PARISC_LOCAL_H
+#define _ARCH_PARISC_LOCAL_H
+
+#include <linux/percpu.h>
+#include <asm/atomic.h>
+
+typedef atomic_t local_t;
+
+#define LOCAL_INIT(i)	ATOMIC_INIT(i)
+#define local_read(v)	atomic_read(v)
+#define local_set(v,i)	atomic_set(v,i)
+
+#define local_inc(v)	atomic_inc(v)
+#define local_dec(v)	atomic_dec(v)
+#define local_add(i, v)	atomic_add(i, v)
+#define local_sub(i, v)	atomic_sub(i, v)
+
+#define __local_inc(v)		((v)->counter++)
+#define __local_dec(v)		((v)->counter--)
+#define __local_add(i,v)	((v)->counter+=(i))
+#define __local_sub(i,v)	((v)->counter-=(i))
+
+/* Use these for per-cpu local_t variables: on some archs they are
+ * much more efficient than these naive implementations.  Note they take
+ * a variable, not an address.
+ */
+#define cpu_local_read(v)	local_read(&__get_cpu_var(v))
+#define cpu_local_set(v, i)	local_set(&__get_cpu_var(v), (i))
+
+#define cpu_local_inc(v)	local_inc(&__get_cpu_var(v))
+#define cpu_local_dec(v)	local_dec(&__get_cpu_var(v))
+#define cpu_local_add(i, v)	local_add((i), &__get_cpu_var(v))
+#define cpu_local_sub(i, v)	local_sub((i), &__get_cpu_var(v))
+
+#define __cpu_local_inc(v)	__local_inc(&__get_cpu_var(v))
+#define __cpu_local_dec(v)	__local_dec(&__get_cpu_var(v))
+#define __cpu_local_add(i, v)	__local_add((i), &__get_cpu_var(v))
+#define __cpu_local_sub(i, v)	__local_sub((i), &__get_cpu_var(v))
+
+#endif /* _ARCH_PARISC_LOCAL_H */

include/asm-parisc/sections.h

+#ifndef _PARISC_SECTIONS_H
+#define _PARISC_SECTIONS_H
+
+/* nothing to see, move along */
+#include <asm-generic/sections.h>
+
+#endif

include/asm-parisc/uaccess.h

@@ -28,6 +28,11 @@
  * that put_user is the same as __put_user, etc.
  */
 
+extern int __get_kernel_bad(void);
+extern int __get_user_bad(void);
+extern int __put_kernel_bad(void);
+extern int __put_user_bad(void);
+
 #define access_ok(type,addr,size)   (1)
 #define verify_area(type,addr,size) (0)
 
@@ -35,8 +40,8 @@
 #define get_user __get_user
 
 #if BITS_PER_LONG == 32
-#define LDD_KERNEL(ptr)		BUG()
-#define LDD_USER(ptr)		BUG()
+#define LDD_KERNEL(ptr) __get_kernel_bad();
+#define LDD_USER(ptr) __get_user_bad();
 #define STD_KERNEL(x, ptr) __put_kernel_asm64((u32)x,ptr)
 #define STD_USER(x, ptr) __put_user_asm64((u32)x,ptr)
 #else
@@ -72,7 +77,7 @@ struct exception_table_entry {
 	    case 2: __get_kernel_asm("ldh",ptr); break; \
 	    case 4: __get_kernel_asm("ldw",ptr); break; \
 	    case 8: LDD_KERNEL(ptr); break;		\
-	    default: BUG(); break;                      \
+	    default: __get_kernel_bad(); break;         \
 	    }                                           \
 	}                                               \
 	else {                                          \
@@ -81,7 +86,7 @@ struct exception_table_entry {
 	    case 2: __get_user_asm("ldh",ptr); break;   \
 	    case 4: __get_user_asm("ldw",ptr); break;   \
 	    case 8: LDD_USER(ptr);  break;		\
-	    default: BUG(); break;                      \
+	    default: __get_user_bad(); break;           \
 	    }                                           \
 	}                                               \
 							\
@@ -141,7 +146,7 @@ struct exception_table_entry {
 	    case 2: __put_kernel_asm("sth",x,ptr); break;       \
 	    case 4: __put_kernel_asm("stw",x,ptr); break;       \
 	    case 8: STD_KERNEL(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_kernel_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 	else {                                                  \
@@ -150,7 +155,7 @@ struct exception_table_entry {
 	    case 2: __put_user_asm("sth",x,ptr); break;         \
 	    case 4: __put_user_asm("stw",x,ptr); break;         \
 	    case 8: STD_USER(x,ptr); break;			\
-	    default: BUG(); break;                              \
+	    default: __put_user_bad(); break;			\
 	    }                                                   \
 	}                                                       \
 								\