powerpc: Remove arch/ppc and include/asm-ppc

All the maintained platforms are now in arch/powerpc, so the old
arch/ppc stuff can now go away.

Acked-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jochen Friedrich <jochen@scram.de>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 1087 deletions

diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c
deleted file mode 100644
index 67dffe2..0000000
--- a/arch/ppc/syslib/open_pic.c
+++ /dev/null
@@ -1,1087 +0,0 @@
-/*
- *  Copyright (C) 1997 Geert Uytterhoeven
- *
- *  This file is subject to the terms and conditions of the GNU General Public
- *  License.  See the file COPYING in the main directory of this archive
- *  for more details.
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/sysdev.h>
-#include <linux/errno.h>
-#include <asm/ptrace.h>
-#include <asm/signal.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/sections.h>
-#include <asm/open_pic.h>
-#include <asm/i8259.h>
-#include <asm/machdep.h>
-
-#include "open_pic_defs.h"
-
-#if defined(CONFIG_PRPMC800)
-#define OPENPIC_BIG_ENDIAN
-#endif
-
-void __iomem *OpenPIC_Addr;
-static volatile struct OpenPIC __iomem *OpenPIC = NULL;
-
-/*
- * We define OpenPIC_InitSenses table thusly:
- * bit 0x1: sense, 0 for edge and 1 for level.
- * bit 0x2: polarity, 0 for negative, 1 for positive.
- */
-u_int OpenPIC_NumInitSenses __initdata = 0;
-u_char *OpenPIC_InitSenses __initdata = NULL;
-extern int use_of_interrupt_tree;
-
-static u_int NumProcessors;
-static u_int NumSources;
-static int open_pic_irq_offset;
-static volatile OpenPIC_Source __iomem *ISR[NR_IRQS];
-static int openpic_cascade_irq = -1;
-static int (*openpic_cascade_fn)(void);
-
-/* Global Operations */
-static void openpic_disable_8259_pass_through(void);
-static void openpic_set_spurious(u_int vector);
-
-#ifdef CONFIG_SMP
-/* Interprocessor Interrupts */
-static void openpic_initipi(u_int ipi, u_int pri, u_int vector);
-static irqreturn_t openpic_ipi_action(int cpl, void *dev_id);
-#endif
-
-/* Timer Interrupts */
-static void openpic_inittimer(u_int timer, u_int pri, u_int vector);
-static void openpic_maptimer(u_int timer, cpumask_t cpumask);
-
-/* Interrupt Sources */
-static void openpic_enable_irq(u_int irq);
-static void openpic_disable_irq(u_int irq);
-static void openpic_initirq(u_int irq, u_int pri, u_int vector, int polarity,
-			    int is_level);
-static void openpic_mapirq(u_int irq, cpumask_t cpumask, cpumask_t keepmask);
-
-/*
- * These functions are not used but the code is kept here
- * for completeness and future reference.
- */
-#ifdef notused
-static void openpic_enable_8259_pass_through(void);
-static u_int openpic_get_spurious(void);
-static void openpic_set_sense(u_int irq, int sense);
-#endif /* notused */
-
-/*
- * Description of the openpic for the higher-level irq code
- */
-static void openpic_end_irq(unsigned int irq_nr);
-static void openpic_ack_irq(unsigned int irq_nr);
-static void openpic_set_affinity(unsigned int irq_nr, cpumask_t cpumask);
-
-struct hw_interrupt_type open_pic = {
-	.typename	= " OpenPIC  ",
-	.enable		= openpic_enable_irq,
-	.disable	= openpic_disable_irq,
-	.ack		= openpic_ack_irq,
-	.end		= openpic_end_irq,
-	.set_affinity	= openpic_set_affinity,
-};
-
-#ifdef CONFIG_SMP
-static void openpic_end_ipi(unsigned int irq_nr);
-static void openpic_ack_ipi(unsigned int irq_nr);
-static void openpic_enable_ipi(unsigned int irq_nr);
-static void openpic_disable_ipi(unsigned int irq_nr);
-
-struct hw_interrupt_type open_pic_ipi = {
-	.typename	= " OpenPIC  ",
-	.enable		= openpic_enable_ipi,
-	.disable	= openpic_disable_ipi,
-	.ack		= openpic_ack_ipi,
-	.end		= openpic_end_ipi,
-};
-#endif /* CONFIG_SMP */
-
-/*
- *  Accesses to the current processor's openpic registers
- */
-#ifdef CONFIG_SMP
-#define THIS_CPU		Processor[cpu]
-#define DECL_THIS_CPU		int cpu = smp_hw_index[smp_processor_id()]
-#define CHECK_THIS_CPU		check_arg_cpu(cpu)
-#else
-#define THIS_CPU		Processor[0]
-#define DECL_THIS_CPU
-#define CHECK_THIS_CPU
-#endif /* CONFIG_SMP */
-
-#if 1
-#define check_arg_ipi(ipi) \
-    if (ipi < 0 || ipi >= OPENPIC_NUM_IPI) \
-	printk("open_pic.c:%d: invalid ipi %d\n", __LINE__, ipi);
-#define check_arg_timer(timer) \
-    if (timer < 0 || timer >= OPENPIC_NUM_TIMERS) \
-	printk("open_pic.c:%d: invalid timer %d\n", __LINE__, timer);
-#define check_arg_vec(vec) \
-    if (vec < 0 || vec >= OPENPIC_NUM_VECTORS) \
-	printk("open_pic.c:%d: invalid vector %d\n", __LINE__, vec);
-#define check_arg_pri(pri) \
-    if (pri < 0 || pri >= OPENPIC_NUM_PRI) \
-	printk("open_pic.c:%d: invalid priority %d\n", __LINE__, pri);
-/*
- * Print out a backtrace if it's out of range, since if it's larger than NR_IRQ's
- * data has probably been corrupted and we're going to panic or deadlock later
- * anyway --Troy
- */
-#define check_arg_irq(irq) \
-    if (irq < open_pic_irq_offset || irq >= NumSources+open_pic_irq_offset \
-	|| ISR[irq - open_pic_irq_offset] == 0) { \
-      printk("open_pic.c:%d: invalid irq %d\n", __LINE__, irq); \
-      dump_stack(); }
-#define check_arg_cpu(cpu) \
-    if (cpu < 0 || cpu >= NumProcessors){ \
-	printk("open_pic.c:%d: invalid cpu %d\n", __LINE__, cpu); \
-	dump_stack(); }
-#else
-#define check_arg_ipi(ipi)	do {} while (0)
-#define check_arg_timer(timer)	do {} while (0)
-#define check_arg_vec(vec)	do {} while (0)
-#define check_arg_pri(pri)	do {} while (0)
-#define check_arg_irq(irq)	do {} while (0)
-#define check_arg_cpu(cpu)	do {} while (0)
-#endif
-
-u_int openpic_read(volatile u_int __iomem *addr)
-{
-	u_int val;
-
-#ifdef OPENPIC_BIG_ENDIAN
-	val = in_be32(addr);
-#else
-	val = in_le32(addr);
-#endif
-	return val;
-}
-
-static inline void openpic_write(volatile u_int __iomem *addr, u_int val)
-{
-#ifdef OPENPIC_BIG_ENDIAN
-	out_be32(addr, val);
-#else
-	out_le32(addr, val);
-#endif
-}
-
-static inline u_int openpic_readfield(volatile u_int __iomem *addr, u_int mask)
-{
-	u_int val = openpic_read(addr);
-	return val & mask;
-}
-
-inline void openpic_writefield(volatile u_int __iomem *addr, u_int mask,
-			       u_int field)
-{
-	u_int val = openpic_read(addr);
-	openpic_write(addr, (val & ~mask) | (field & mask));
-}
-
-static inline void openpic_clearfield(volatile u_int __iomem *addr, u_int mask)
-{
-	openpic_writefield(addr, mask, 0);
-}
-
-static inline void openpic_setfield(volatile u_int __iomem *addr, u_int mask)
-{
-	openpic_writefield(addr, mask, mask);
-}
-
-static void openpic_safe_writefield(volatile u_int __iomem *addr, u_int mask,
-				    u_int field)
-{
-	openpic_setfield(addr, OPENPIC_MASK);
-	while (openpic_read(addr) & OPENPIC_ACTIVITY);
-	openpic_writefield(addr, mask | OPENPIC_MASK, field | OPENPIC_MASK);
-}
-
-#ifdef CONFIG_SMP
-/* yes this is right ... bug, feature, you decide! -- tgall */
-u_int openpic_read_IPI(volatile u_int __iomem * addr)
-{
-         u_int val = 0;
-#if defined(OPENPIC_BIG_ENDIAN)
-        val = in_be32(addr);
-#else
-        val = in_le32(addr);
-#endif
-        return val;
-}
-
-/* because of the power3 be / le above, this is needed */
-inline void openpic_writefield_IPI(volatile u_int __iomem * addr, u_int mask, u_int field)
-{
-        u_int  val = openpic_read_IPI(addr);
-        openpic_write(addr, (val & ~mask) | (field & mask));
-}
-
-static inline void openpic_clearfield_IPI(volatile u_int __iomem *addr, u_int mask)
-{
-        openpic_writefield_IPI(addr, mask, 0);
-}
-
-static inline void openpic_setfield_IPI(volatile u_int __iomem *addr, u_int mask)
-{
-        openpic_writefield_IPI(addr, mask, mask);
-}
-
-static void openpic_safe_writefield_IPI(volatile u_int __iomem *addr, u_int mask, u_int field)
-{
-        openpic_setfield_IPI(addr, OPENPIC_MASK);
-
-        /* wait until it's not in use */
-        /* BenH: Is this code really enough ? I would rather check the result
-         *       and eventually retry ...
-         */
-        while(openpic_read_IPI(addr) & OPENPIC_ACTIVITY);
-
-        openpic_writefield_IPI(addr, mask | OPENPIC_MASK, field | OPENPIC_MASK);
-}
-#endif /* CONFIG_SMP */
-
-#ifdef CONFIG_EPIC_SERIAL_MODE
-/* On platforms that may use EPIC serial mode, the default is enabled. */
-int epic_serial_mode = 1;
-
-static void __init openpic_eicr_set_clk(u_int clkval)
-{
-	openpic_writefield(&OpenPIC->Global.Global_Configuration1,
-			OPENPIC_EICR_S_CLK_MASK, (clkval << 28));
-}
-
-static void __init openpic_enable_sie(void)
-{
-	openpic_setfield(&OpenPIC->Global.Global_Configuration1,
-			OPENPIC_EICR_SIE);
-}
-#endif
-
-#if defined(CONFIG_EPIC_SERIAL_MODE)
-static void openpic_reset(void)
-{
-	openpic_setfield(&OpenPIC->Global.Global_Configuration0,
-			 OPENPIC_CONFIG_RESET);
-	while (openpic_readfield(&OpenPIC->Global.Global_Configuration0,
-				 OPENPIC_CONFIG_RESET))
-		mb();
-}
-#endif
-
-void __init openpic_set_sources(int first_irq, int num_irqs, void __iomem *first_ISR)
-{
-	volatile OpenPIC_Source __iomem *src = first_ISR;
-	int i, last_irq;
-
-	last_irq = first_irq + num_irqs;
-	if (last_irq > NumSources)
-		NumSources = last_irq;
-	if (src == 0)
-		src = &((struct OpenPIC __iomem *)OpenPIC_Addr)->Source[first_irq];
-	for (i = first_irq; i < last_irq; ++i, ++src)
-		ISR[i] = src;
-}
-
-/*
- * The `offset' parameter defines where the interrupts handled by the
- * OpenPIC start in the space of interrupt numbers that the kernel knows
- * about.  In other words, the OpenPIC's IRQ0 is numbered `offset' in the
- * kernel's interrupt numbering scheme.
- * We assume there is only one OpenPIC.
- */
-void __init openpic_init(int offset)
-{
-	u_int t, i;
-	u_int timerfreq;
-	const char *version;
-
-	if (!OpenPIC_Addr) {
-		printk("No OpenPIC found !\n");
-		return;
-	}
-	OpenPIC = (volatile struct OpenPIC __iomem *)OpenPIC_Addr;
-
-#ifdef CONFIG_EPIC_SERIAL_MODE
-	/* Have to start from ground zero.
-	*/
-	openpic_reset();
-#endif
-
-	if (ppc_md.progress) ppc_md.progress("openpic: enter", 0x122);
-
-	t = openpic_read(&OpenPIC->Global.Feature_Reporting0);
-	switch (t & OPENPIC_FEATURE_VERSION_MASK) {
-	case 1:
-		version = "1.0";
-		break;
-	case 2:
-		version = "1.2";
-		break;
-	case 3:
-		version = "1.3";
-		break;
-	default:
-		version = "?";
-		break;
-	}
-	NumProcessors = ((t & OPENPIC_FEATURE_LAST_PROCESSOR_MASK) >>
-			 OPENPIC_FEATURE_LAST_PROCESSOR_SHIFT) + 1;
-	if (NumSources == 0)
-		openpic_set_sources(0,
-				    ((t & OPENPIC_FEATURE_LAST_SOURCE_MASK) >>
-				     OPENPIC_FEATURE_LAST_SOURCE_SHIFT) + 1,
-				    NULL);
-	printk("OpenPIC Version %s (%d CPUs and %d IRQ sources) at %p\n",
-	       version, NumProcessors, NumSources, OpenPIC);
-	timerfreq = openpic_read(&OpenPIC->Global.Timer_Frequency);
-	if (timerfreq)
-		printk("OpenPIC timer frequency is %d.%06d MHz\n",
-		       timerfreq / 1000000, timerfreq % 1000000);
-
-	open_pic_irq_offset = offset;
-
-	/* Initialize timer interrupts */
-	if ( ppc_md.progress ) ppc_md.progress("openpic: timer",0x3ba);
-	for (i = 0; i < OPENPIC_NUM_TIMERS; i++) {
-		/* Disabled, Priority 0 */
-		openpic_inittimer(i, 0, OPENPIC_VEC_TIMER+i+offset);
-		/* No processor */
-		openpic_maptimer(i, CPU_MASK_NONE);
-	}
-
-#ifdef CONFIG_SMP
-	/* Initialize IPI interrupts */
-	if ( ppc_md.progress ) ppc_md.progress("openpic: ipi",0x3bb);
-	for (i = 0; i < OPENPIC_NUM_IPI; i++) {
-		/* Disabled, increased priorities 10..13 */
-		openpic_initipi(i, OPENPIC_PRIORITY_IPI_BASE+i,
-				OPENPIC_VEC_IPI+i+offset);
-		/* IPIs are per-CPU */
-		irq_desc[OPENPIC_VEC_IPI+i+offset].status |= IRQ_PER_CPU;
-		irq_desc[OPENPIC_VEC_IPI+i+offset].chip = &open_pic_ipi;
-	}
-#endif
-
-	/* Initialize external interrupts */
-	if (ppc_md.progress) ppc_md.progress("openpic: external",0x3bc);
-
-	openpic_set_priority(0xf);
-
-	/* Init all external sources, including possibly the cascade. */
-	for (i = 0; i < NumSources; i++) {
-		int sense;
-
-		if (ISR[i] == 0)
-			continue;
-
-		/* the bootloader may have left it enabled (bad !) */
-		openpic_disable_irq(i+offset);
-
-		sense = (i < OpenPIC_NumInitSenses)? OpenPIC_InitSenses[i]: \
-				(IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE);
-
-		if (sense & IRQ_SENSE_MASK)
-			irq_desc[i+offset].status = IRQ_LEVEL;
-
-		/* Enabled, Default priority */
-		openpic_initirq(i, OPENPIC_PRIORITY_DEFAULT, i+offset,
-				(sense & IRQ_POLARITY_MASK),
-				(sense & IRQ_SENSE_MASK));
-		/* Processor 0 */
-		openpic_mapirq(i, CPU_MASK_CPU0, CPU_MASK_NONE);
-	}
-
-	/* Init descriptors */
-	for (i = offset; i < NumSources + offset; i++)
-		irq_desc[i].chip = &open_pic;
-
-	/* Initialize the spurious interrupt */
-	if (ppc_md.progress) ppc_md.progress("openpic: spurious",0x3bd);
-	openpic_set_spurious(OPENPIC_VEC_SPURIOUS);
-	openpic_disable_8259_pass_through();
-#ifdef CONFIG_EPIC_SERIAL_MODE
-	if (epic_serial_mode) {
-		openpic_eicr_set_clk(7);	/* Slowest value until we know better */
-		openpic_enable_sie();
-	}
-#endif
-	openpic_set_priority(0);
-
-	if (ppc_md.progress) ppc_md.progress("openpic: exit",0x222);
-}
-
-#ifdef notused
-static void openpic_enable_8259_pass_through(void)
-{
-	openpic_clearfield(&OpenPIC->Global.Global_Configuration0,
-			   OPENPIC_CONFIG_8259_PASSTHROUGH_DISABLE);
-}
-#endif /* notused */
-
-static void openpic_disable_8259_pass_through(void)
-{
-	openpic_setfield(&OpenPIC->Global.Global_Configuration0,
-			 OPENPIC_CONFIG_8259_PASSTHROUGH_DISABLE);
-}
-
-/*
- *  Find out the current interrupt
- */
-u_int openpic_irq(void)
-{
-	u_int vec;
-	DECL_THIS_CPU;
-
-	CHECK_THIS_CPU;
-	vec = openpic_readfield(&OpenPIC->THIS_CPU.Interrupt_Acknowledge,
-				OPENPIC_VECTOR_MASK);
-	return vec;
-}
-
-void openpic_eoi(void)
-{
-	DECL_THIS_CPU;
-
-	CHECK_THIS_CPU;
-	openpic_write(&OpenPIC->THIS_CPU.EOI, 0);
-	/* Handle PCI write posting */
-	(void)openpic_read(&OpenPIC->THIS_CPU.EOI);
-}
-
-u_int openpic_get_priority(void)
-{
-	DECL_THIS_CPU;
-
-	CHECK_THIS_CPU;
-	return openpic_readfield(&OpenPIC->THIS_CPU.Current_Task_Priority,
-				 OPENPIC_CURRENT_TASK_PRIORITY_MASK);
-}
-
-void openpic_set_priority(u_int pri)
-{
-	DECL_THIS_CPU;
-
-	CHECK_THIS_CPU;
-	check_arg_pri(pri);
-	openpic_writefield(&OpenPIC->THIS_CPU.Current_Task_Priority,
-			   OPENPIC_CURRENT_TASK_PRIORITY_MASK, pri);
-}
-
-/*
- *  Get/set the spurious vector
- */
-#ifdef notused
-static u_int openpic_get_spurious(void)
-{
-	return openpic_readfield(&OpenPIC->Global.Spurious_Vector,
-				 OPENPIC_VECTOR_MASK);
-}
-#endif /* notused */
-
-static void openpic_set_spurious(u_int vec)
-{
-	check_arg_vec(vec);
-	openpic_writefield(&OpenPIC->Global.Spurious_Vector, OPENPIC_VECTOR_MASK,
-			   vec);
-}
-
-#ifdef CONFIG_SMP
-/*
- * Convert a cpu mask from logical to physical cpu numbers.
- */
-static inline cpumask_t physmask(cpumask_t cpumask)
-{
-	int i;
-	cpumask_t mask = CPU_MASK_NONE;
-
-	cpus_and(cpumask, cpu_online_map, cpumask);
-
-	for (i = 0; i < NR_CPUS; i++)
-		if (cpu_isset(i, cpumask))
-			cpu_set(smp_hw_index[i], mask);
-
-	return mask;
-}
-#else
-#define physmask(cpumask)	(cpumask)
-#endif
-
-void openpic_reset_processor_phys(u_int mask)
-{
-	openpic_write(&OpenPIC->Global.Processor_Initialization, mask);
-}
-
-#if defined(CONFIG_SMP) || defined(CONFIG_PM)
-static DEFINE_SPINLOCK(openpic_setup_lock);
-#endif
-
-#ifdef CONFIG_SMP
-/*
- *  Initialize an interprocessor interrupt (and disable it)
- *
- *  ipi: OpenPIC interprocessor interrupt number
- *  pri: interrupt source priority
- *  vec: the vector it will produce
- */
-static void __init openpic_initipi(u_int ipi, u_int pri, u_int vec)
-{
-	check_arg_ipi(ipi);
-	check_arg_pri(pri);
-	check_arg_vec(vec);
-	openpic_safe_writefield_IPI(&OpenPIC->Global.IPI_Vector_Priority(ipi),
-				OPENPIC_PRIORITY_MASK | OPENPIC_VECTOR_MASK,
-				(pri << OPENPIC_PRIORITY_SHIFT) | vec);
-}
-
-/*
- *  Send an IPI to one or more CPUs
- *
- *  Externally called, however, it takes an IPI number (0...OPENPIC_NUM_IPI)
- *  and not a system-wide interrupt number
- */
-void openpic_cause_IPI(u_int ipi, cpumask_t cpumask)
-{
-	DECL_THIS_CPU;
-
-	CHECK_THIS_CPU;
-	check_arg_ipi(ipi);
-	openpic_write(&OpenPIC->THIS_CPU.IPI_Dispatch(ipi),
-		      cpus_addr(physmask(cpumask))[0]);
-}
-
-void openpic_request_IPIs(void)
-{
-	int i;
-
-	/*
-	 * Make sure this matches what is defined in smp.c for
-	 * smp_message_{pass|recv}() or what shows up in
-	 * /proc/interrupts will be wrong!!! --Troy */
-
-	if (OpenPIC == NULL)
-		return;
-
-	/*
- 	 * IPIs are marked IRQF_DISABLED as they must run with irqs
-	 * disabled
-	 */
-	request_irq(OPENPIC_VEC_IPI+open_pic_irq_offset,
-		    openpic_ipi_action, IRQF_DISABLED,
-		    "IPI0 (call function)", NULL);
-	request_irq(OPENPIC_VEC_IPI+open_pic_irq_offset+1,
-		    openpic_ipi_action, IRQF_DISABLED,
-		    "IPI1 (reschedule)", NULL);
-	request_irq(OPENPIC_VEC_IPI+open_pic_irq_offset+2,
-		    openpic_ipi_action, IRQF_DISABLED,
-		    "IPI2 (invalidate tlb)", NULL);
-	request_irq(OPENPIC_VEC_IPI+open_pic_irq_offset+3,
-		    openpic_ipi_action, IRQF_DISABLED,
-		    "IPI3 (xmon break)", NULL);
-
-	for ( i = 0; i < OPENPIC_NUM_IPI ; i++ )
-		openpic_enable_ipi(OPENPIC_VEC_IPI+open_pic_irq_offset+i);
-}
-
-/*
- * Do per-cpu setup for SMP systems.
- *
- * Get IPI's working and start taking interrupts.
- *   -- Cort
- */
-
-void __devinit do_openpic_setup_cpu(void)
-{
-#ifdef CONFIG_IRQ_ALL_CPUS
- 	int i;
-	cpumask_t msk = CPU_MASK_NONE;
-#endif
-	spin_lock(&openpic_setup_lock);
-
-#ifdef CONFIG_IRQ_ALL_CPUS
-	cpu_set(smp_hw_index[smp_processor_id()], msk);
-
- 	/* let the openpic know we want intrs. default affinity
- 	 * is 0xffffffff until changed via /proc
- 	 * That's how it's done on x86. If we want it differently, then
- 	 * we should make sure we also change the default values of
-	 * irq_desc[].affinity in irq.c.
- 	 */
- 	for (i = 0; i < NumSources; i++)
-		openpic_mapirq(i, msk, CPU_MASK_ALL);
-#endif /* CONFIG_IRQ_ALL_CPUS */
- 	openpic_set_priority(0);
-
-	spin_unlock(&openpic_setup_lock);
-}
-#endif /* CONFIG_SMP */
-
-/*
- *  Initialize a timer interrupt (and disable it)
- *
- *  timer: OpenPIC timer number
- *  pri: interrupt source priority
- *  vec: the vector it will produce
- */
-static void __init openpic_inittimer(u_int timer, u_int pri, u_int vec)
-{
-	check_arg_timer(timer);
-	check_arg_pri(pri);
-	check_arg_vec(vec);
-	openpic_safe_writefield(&OpenPIC->Global.Timer[timer].Vector_Priority,
-				OPENPIC_PRIORITY_MASK | OPENPIC_VECTOR_MASK,
-				(pri << OPENPIC_PRIORITY_SHIFT) | vec);
-}
-
-/*
- *  Map a timer interrupt to one or more CPUs
- */
-static void __init openpic_maptimer(u_int timer, cpumask_t cpumask)
-{
-	cpumask_t phys = physmask(cpumask);
-	check_arg_timer(timer);
-	openpic_write(&OpenPIC->Global.Timer[timer].Destination,
-		      cpus_addr(phys)[0]);
-}
-
-/*
- * Change the priority of an interrupt
- */
-void __init
-openpic_set_irq_priority(u_int irq, u_int pri)
-{
-	check_arg_irq(irq);
-	openpic_safe_writefield(&ISR[irq - open_pic_irq_offset]->Vector_Priority,
-				OPENPIC_PRIORITY_MASK,
-				pri << OPENPIC_PRIORITY_SHIFT);
-}
-
-/*
- * Initalize the interrupt source which will generate an NMI.
- * This raises the interrupt's priority from 8 to 9.
- *
- * irq: The logical IRQ which generates an NMI.
- */
-void __init
-openpic_init_nmi_irq(u_int irq)
-{
-	check_arg_irq(irq);
-	openpic_set_irq_priority(irq, OPENPIC_PRIORITY_NMI);
-}
-
-/*
- *
- * All functions below take an offset'ed irq argument
- *
- */
-
-/*
- * Hookup a cascade to the OpenPIC.
- */
-
-static struct irqaction openpic_cascade_irqaction = {
-	.handler = no_action,
-	.flags = IRQF_DISABLED,
-	.mask = CPU_MASK_NONE,
-};
-
-void __init
-openpic_hookup_cascade(u_int irq, char *name,
-	int (*cascade_fn)(void))
-{
-	openpic_cascade_irq = irq;
-	openpic_cascade_fn = cascade_fn;
-
-	if (setup_irq(irq, &openpic_cascade_irqaction))
-		printk("Unable to get OpenPIC IRQ %d for cascade\n",
-				irq - open_pic_irq_offset);
-}
-
-/*
- *  Enable/disable an external interrupt source
- *
- *  Externally called, irq is an offseted system-wide interrupt number
- */
-static void openpic_enable_irq(u_int irq)
-{
-	volatile u_int __iomem *vpp;
-
-	check_arg_irq(irq);
-	vpp = &ISR[irq - open_pic_irq_offset]->Vector_Priority;
-	openpic_clearfield(vpp, OPENPIC_MASK);
-	/* make sure mask gets to controller before we return to user */
-	do {
-		mb(); /* sync is probably useless here */
-	} while (openpic_readfield(vpp, OPENPIC_MASK));
-}
-
-static void openpic_disable_irq(u_int irq)
-{
-	volatile u_int __iomem *vpp;
-	u32 vp;
-
-	check_arg_irq(irq);
-	vpp = &ISR[irq - open_pic_irq_offset]->Vector_Priority;
-	openpic_setfield(vpp, OPENPIC_MASK);
-	/* make sure mask gets to controller before we return to user */
-	do {
-		mb();  /* sync is probably useless here */
-		vp = openpic_readfield(vpp, OPENPIC_MASK | OPENPIC_ACTIVITY);
-	} while((vp & OPENPIC_ACTIVITY) && !(vp & OPENPIC_MASK));
-}
-
-#ifdef CONFIG_SMP
-/*
- *  Enable/disable an IPI interrupt source
- *
- *  Externally called, irq is an offseted system-wide interrupt number
- */
-void openpic_enable_ipi(u_int irq)
-{
-	irq -= (OPENPIC_VEC_IPI+open_pic_irq_offset);
-	check_arg_ipi(irq);
-	openpic_clearfield_IPI(&OpenPIC->Global.IPI_Vector_Priority(irq), OPENPIC_MASK);
-
-}
-
-void openpic_disable_ipi(u_int irq)
-{
-	irq -= (OPENPIC_VEC_IPI+open_pic_irq_offset);
-	check_arg_ipi(irq);
-	openpic_setfield_IPI(&OpenPIC->Global.IPI_Vector_Priority(irq), OPENPIC_MASK);
-}
-#endif
-
-/*
- *  Initialize an interrupt source (and disable it!)
- *
- *  irq: OpenPIC interrupt number
- *  pri: interrupt source priority
- *  vec: the vector it will produce
- *  pol: polarity (1 for positive, 0 for negative)
- *  sense: 1 for level, 0 for edge
- */
-static void __init
-openpic_initirq(u_int irq, u_int pri, u_int vec, int pol, int sense)
-{
-	openpic_safe_writefield(&ISR[irq]->Vector_Priority,
-				OPENPIC_PRIORITY_MASK | OPENPIC_VECTOR_MASK |
-				OPENPIC_SENSE_MASK | OPENPIC_POLARITY_MASK,
-				(pri << OPENPIC_PRIORITY_SHIFT) | vec |
-				(pol ? OPENPIC_POLARITY_POSITIVE :
-			    		OPENPIC_POLARITY_NEGATIVE) |
-				(sense ? OPENPIC_SENSE_LEVEL : OPENPIC_SENSE_EDGE));
-}
-
-/*
- *  Map an interrupt source to one or more CPUs
- */
-static void openpic_mapirq(u_int irq, cpumask_t physmask, cpumask_t keepmask)
-{
-	if (ISR[irq] == 0)
-		return;
-	if (!cpus_empty(keepmask)) {
-		cpumask_t irqdest = { .bits[0] = openpic_read(&ISR[irq]->Destination) };
-		cpus_and(irqdest, irqdest, keepmask);
-		cpus_or(physmask, physmask, irqdest);
-	}
-	openpic_write(&ISR[irq]->Destination, cpus_addr(physmask)[0]);
-}
-
-#ifdef notused
-/*
- *  Set the sense for an interrupt source (and disable it!)
- *
- *  sense: 1 for level, 0 for edge
- */
-static void openpic_set_sense(u_int irq, int sense)
-{
-	if (ISR[irq] != 0)
-		openpic_safe_writefield(&ISR[irq]->Vector_Priority,
-					OPENPIC_SENSE_LEVEL,
-					(sense ? OPENPIC_SENSE_LEVEL : 0));
-}
-#endif /* notused */
-
-/* No spinlocks, should not be necessary with the OpenPIC
- * (1 register = 1 interrupt and we have the desc lock).
- */
-static void openpic_ack_irq(unsigned int irq_nr)
-{
-#ifdef __SLOW_VERSION__
-	openpic_disable_irq(irq_nr);
-	openpic_eoi();
-#else
-	if ((irq_desc[irq_nr].status & IRQ_LEVEL) == 0)
-		openpic_eoi();
-#endif
-}
-
-static void openpic_end_irq(unsigned int irq_nr)
-{
-#ifdef __SLOW_VERSION__
-	if (!(irq_desc[irq_nr].status & (IRQ_DISABLED|IRQ_INPROGRESS))
-	    && irq_desc[irq_nr].action)
-		openpic_enable_irq(irq_nr);
-#else
-	if ((irq_desc[irq_nr].status & IRQ_LEVEL) != 0)
-		openpic_eoi();
-#endif
-}
-
-static void openpic_set_affinity(unsigned int irq_nr, cpumask_t cpumask)
-{
-	openpic_mapirq(irq_nr - open_pic_irq_offset, physmask(cpumask), CPU_MASK_NONE);
-}
-
-#ifdef CONFIG_SMP
-static void openpic_ack_ipi(unsigned int irq_nr)
-{
-	openpic_eoi();
-}
-
-static void openpic_end_ipi(unsigned int irq_nr)
-{
-}
-
-static irqreturn_t openpic_ipi_action(int cpl, void *dev_id)
-{
-	smp_message_recv(cpl-OPENPIC_VEC_IPI-open_pic_irq_offset);
-	return IRQ_HANDLED;
-}
-
-#endif /* CONFIG_SMP */
-
-int
-openpic_get_irq(void)
-{
-	int irq = openpic_irq();
-
-	/*
-	 * Check for the cascade interrupt and call the cascaded
-	 * interrupt controller function (usually i8259_irq) if so.
-	 * This should move to irq.c eventually.  -- paulus
-	 */
-	if (irq == openpic_cascade_irq && openpic_cascade_fn != NULL) {
-		int cirq = openpic_cascade_fn();
-
-		/* Allow for the cascade being shared with other devices */
-		if (cirq != -1) {
-			irq = cirq;
-			openpic_eoi();
-		}
-	} else if (irq == OPENPIC_VEC_SPURIOUS)
-		irq = -1;
-	return irq;
-}
-
-#ifdef CONFIG_SMP
-void
-smp_openpic_message_pass(int target, int msg)
-{
-	cpumask_t mask = CPU_MASK_ALL;
-	/* make sure we're sending something that translates to an IPI */
-	if (msg > 0x3) {
-		printk("SMP %d: smp_message_pass: unknown msg %d\n",
-		       smp_processor_id(), msg);
-		return;
-	}
-	switch (target) {
-	case MSG_ALL:
-		openpic_cause_IPI(msg, mask);
-		break;
-	case MSG_ALL_BUT_SELF:
-		cpu_clear(smp_processor_id(), mask);
-		openpic_cause_IPI(msg, mask);
-		break;
-	default:
-		openpic_cause_IPI(msg, cpumask_of_cpu(target));
-		break;
-	}
-}
-#endif /* CONFIG_SMP */
-
-#ifdef CONFIG_PM
-
-/*
- * We implement the IRQ controller as a sysdev and put it
- * to sleep at powerdown stage (the callback is named suspend,
- * but it's old semantics, for the Device Model, it's really
- * powerdown). The possible problem is that another sysdev that
- * happens to be suspend after this one will have interrupts off,
- * that may be an issue... For now, this isn't an issue on pmac
- * though...
- */
-
-static u32 save_ipi_vp[OPENPIC_NUM_IPI];
-static u32 save_irq_src_vp[OPENPIC_MAX_SOURCES];
-static u32 save_irq_src_dest[OPENPIC_MAX_SOURCES];
-static u32 save_cpu_task_pri[OPENPIC_MAX_PROCESSORS];
-static int openpic_suspend_count;
-
-static void openpic_cached_enable_irq(u_int irq)
-{
-	check_arg_irq(irq);
-	save_irq_src_vp[irq - open_pic_irq_offset] &= ~OPENPIC_MASK;
-}
-
-static void openpic_cached_disable_irq(u_int irq)
-{
-	check_arg_irq(irq);
-	save_irq_src_vp[irq - open_pic_irq_offset] |= OPENPIC_MASK;
-}
-
-/* WARNING: Can be called directly by the cpufreq code with NULL parameter,
- * we need something better to deal with that... Maybe switch to S1 for
- * cpufreq changes
- */
-int openpic_suspend(struct sys_device *sysdev, pm_message_t state)
-{
-	int	i;
-	unsigned long flags;
-
-	spin_lock_irqsave(&openpic_setup_lock, flags);
-
-	if (openpic_suspend_count++ > 0) {
-		spin_unlock_irqrestore(&openpic_setup_lock, flags);
-		return 0;
-	}
-
- 	openpic_set_priority(0xf);
-
-	open_pic.enable = openpic_cached_enable_irq;
-	open_pic.disable = openpic_cached_disable_irq;
-
-	for (i=0; i<NumProcessors; i++) {
-		save_cpu_task_pri[i] = openpic_read(&OpenPIC->Processor[i].Current_Task_Priority);
-		openpic_writefield(&OpenPIC->Processor[i].Current_Task_Priority,
-				   OPENPIC_CURRENT_TASK_PRIORITY_MASK, 0xf);
-	}
-
-	for (i=0; i<OPENPIC_NUM_IPI; i++)
-		save_ipi_vp[i] = openpic_read(&OpenPIC->Global.IPI_Vector_Priority(i));
-	for (i=0; i<NumSources; i++) {
-		if (ISR[i] == 0)
-			continue;
-		save_irq_src_vp[i] = openpic_read(&ISR[i]->Vector_Priority) & ~OPENPIC_ACTIVITY;
-		save_irq_src_dest[i] = openpic_read(&ISR[i]->Destination);
-	}
-
-	spin_unlock_irqrestore(&openpic_setup_lock, flags);
-
-	return 0;
-}
-
-/* WARNING: Can be called directly by the cpufreq code with NULL parameter,
- * we need something better to deal with that... Maybe switch to S1 for
- * cpufreq changes
- */
-int openpic_resume(struct sys_device *sysdev)
-{
-	int		i;
-	unsigned long	flags;
-	u32		vppmask =	OPENPIC_PRIORITY_MASK | OPENPIC_VECTOR_MASK |
-					OPENPIC_SENSE_MASK | OPENPIC_POLARITY_MASK |
-					OPENPIC_MASK;
-
-	spin_lock_irqsave(&openpic_setup_lock, flags);
-
-	if ((--openpic_suspend_count) > 0) {
-		spin_unlock_irqrestore(&openpic_setup_lock, flags);
-		return 0;
-	}
-
-	/* OpenPIC sometimes seem to need some time to be fully back up... */
-	do {
-		openpic_set_spurious(OPENPIC_VEC_SPURIOUS);
-	} while(openpic_readfield(&OpenPIC->Global.Spurious_Vector, OPENPIC_VECTOR_MASK)
-			!= OPENPIC_VEC_SPURIOUS);
-	
-	openpic_disable_8259_pass_through();
-
-	for (i=0; i<OPENPIC_NUM_IPI; i++)
-		openpic_write(&OpenPIC->Global.IPI_Vector_Priority(i),
-			      save_ipi_vp[i]);
-	for (i=0; i<NumSources; i++) {
-		if (ISR[i] == 0)
-			continue;
-		openpic_write(&ISR[i]->Destination, save_irq_src_dest[i]);
-		openpic_write(&ISR[i]->Vector_Priority, save_irq_src_vp[i]);
-		/* make sure mask gets to controller before we return to user */
-		do {
-			openpic_write(&ISR[i]->Vector_Priority, save_irq_src_vp[i]);
-		} while (openpic_readfield(&ISR[i]->Vector_Priority, vppmask)
-			 != (save_irq_src_vp[i] & vppmask));
-	}
-	for (i=0; i<NumProcessors; i++)
-		openpic_write(&OpenPIC->Processor[i].Current_Task_Priority,
-			      save_cpu_task_pri[i]);
-
-	open_pic.enable = openpic_enable_irq;
-	open_pic.disable = openpic_disable_irq;
-
- 	openpic_set_priority(0);
-
-	spin_unlock_irqrestore(&openpic_setup_lock, flags);
-
-	return 0;
-}
-
-#endif /* CONFIG_PM */
-
-static struct sysdev_class openpic_sysclass = {
-	.name = "openpic",
-};
-
-static struct sys_device device_openpic = {
-	.id		= 0,
-	.cls		= &openpic_sysclass,
-};
-
-static struct sysdev_driver driver_openpic = {
-#ifdef CONFIG_PM
-	.suspend	= &openpic_suspend,
-	.resume		= &openpic_resume,
-#endif /* CONFIG_PM */
-};
-
-static int __init init_openpic_sysfs(void)
-{
-	int rc;
-
-	if (!OpenPIC_Addr)
-		return -ENODEV;
-	printk(KERN_DEBUG "Registering openpic with sysfs...\n");
-	rc = sysdev_class_register(&openpic_sysclass);
-	if (rc) {
-		printk(KERN_ERR "Failed registering openpic sys class\n");
-		return -ENODEV;
-	}
-	rc = sysdev_register(&device_openpic);
-	if (rc) {
-		printk(KERN_ERR "Failed registering openpic sys device\n");
-		return -ENODEV;
-	}
-	rc = sysdev_driver_register(&openpic_sysclass, &driver_openpic);
-	if (rc) {
-		printk(KERN_ERR "Failed registering openpic sys driver\n");
-		return -ENODEV;
-	}
-	return 0;
-}
-
-subsys_initcall(init_openpic_sysfs);
-