1 files changed, 0 insertions, 284 deletions
diff --git a/arch/ppc64/kernel/bpa_iic.c b/arch/ppc64/kernel/bpa_iic.c
deleted file mode 100644
index 0aaa878e19d..00000000000
--- a/arch/ppc64/kernel/bpa_iic.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- * BPA Internal Interrupt Controller
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
- *
- * Author: Arnd Bergmann <arndb@de.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/config.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/percpu.h>
-#include <linux/types.h>
-
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/prom.h>
-#include <asm/ptrace.h>
-
-#include "bpa_iic.h"
-
-struct iic_pending_bits {
-	u32 data;
-	u8 flags;
-	u8 class;
-	u8 source;
-	u8 prio;
-};
-
-enum iic_pending_flags {
-	IIC_VALID = 0x80,
-	IIC_IPI   = 0x40,
-};
-
-struct iic_regs {
-	struct iic_pending_bits pending;
-	struct iic_pending_bits pending_destr;
-	u64 generate;
-	u64 prio;
-};
-
-struct iic {
-	struct iic_regs __iomem *regs;
-};
-
-static DEFINE_PER_CPU(struct iic, iic);
-
-void iic_local_enable(void)
-{
-	out_be64(&__get_cpu_var(iic).regs->prio, 0xff);
-}
-
-void iic_local_disable(void)
-{
-	out_be64(&__get_cpu_var(iic).regs->prio, 0x0);
-}
-
-static unsigned int iic_startup(unsigned int irq)
-{
-	return 0;
-}
-
-static void iic_enable(unsigned int irq)
-{
-	iic_local_enable();
-}
-
-static void iic_disable(unsigned int irq)
-{
-}
-
-static void iic_end(unsigned int irq)
-{
-	iic_local_enable();
-}
-
-static struct hw_interrupt_type iic_pic = {
-	.typename = " BPA-IIC  ",
-	.startup = iic_startup,
-	.enable = iic_enable,
-	.disable = iic_disable,
-	.end = iic_end,
-};
-
-static int iic_external_get_irq(struct iic_pending_bits pending)
-{
-	int irq;
-	unsigned char node, unit;
-
-	node = pending.source >> 4;
-	unit = pending.source & 0xf;
-	irq = -1;
-
-	/*
-	 * This mapping is specific to the Broadband
-	 * Engine. We might need to get the numbers
-	 * from the device tree to support future CPUs.
-	 */
-	switch (unit) {
-	case 0x00:
-	case 0x0b:
-		/*
-		 * One of these units can be connected
-		 * to an external interrupt controller.
-		 */
-		if (pending.prio > 0x3f ||
-		    pending.class != 2)
-			break;
-		irq = IIC_EXT_OFFSET
-			+ spider_get_irq(pending.prio + node * IIC_NODE_STRIDE)
-			+ node * IIC_NODE_STRIDE;
-		break;
-	case 0x01 ... 0x04:
-	case 0x07 ... 0x0a:
-		/*
-		 * These units are connected to the SPEs
-		 */
-		if (pending.class > 2)
-			break;
-		irq = IIC_SPE_OFFSET
-			+ pending.class * IIC_CLASS_STRIDE
-			+ node * IIC_NODE_STRIDE
-			+ unit;
-		break;
-	}
-	if (irq == -1)
-		printk(KERN_WARNING "Unexpected interrupt class %02x, "
-			"source %02x, prio %02x, cpu %02x\n", pending.class,
-			pending.source, pending.prio, smp_processor_id());
-	return irq;
-}
-
-/* Get an IRQ number from the pending state register of the IIC */
-int iic_get_irq(struct pt_regs *regs)
-{
-	struct iic *iic;
-	int irq;
-	struct iic_pending_bits pending;
-
-	iic = &__get_cpu_var(iic);
-	*(unsigned long *) &pending = 
-		in_be64((unsigned long __iomem *) &iic->regs->pending_destr);
-
-	irq = -1;
-	if (pending.flags & IIC_VALID) {
-		if (pending.flags & IIC_IPI) {
-			irq = IIC_IPI_OFFSET + (pending.prio >> 4);
-/*
-			if (irq > 0x80)
-				printk(KERN_WARNING "Unexpected IPI prio %02x"
-					"on CPU %02x\n", pending.prio,
-							smp_processor_id());
-*/
-		} else {
-			irq = iic_external_get_irq(pending);
-		}
-	}
-	return irq;
-}
-
-static struct iic_regs __iomem *find_iic(int cpu)
-{
-	struct device_node *np;
-	int nodeid = cpu / 2;
-	unsigned long regs;
-	struct iic_regs __iomem *iic_regs;
-
-	for (np = of_find_node_by_type(NULL, "cpu");
-	     np;
-	     np = of_find_node_by_type(np, "cpu")) {
-		if (nodeid == *(int *)get_property(np, "node-id", NULL))
-			break;
-	}
-
-	if (!np) {
-		printk(KERN_WARNING "IIC: CPU %d not found\n", cpu);
-		iic_regs = NULL;
-	} else {
-		regs = *(long *)get_property(np, "iic", NULL);
-
-		/* hack until we have decided on the devtree info */
-		regs += 0x400;
-		if (cpu & 1)
-			regs += 0x20;
-
-		printk(KERN_DEBUG "IIC for CPU %d at %lx\n", cpu, regs);
-		iic_regs = __ioremap(regs, sizeof(struct iic_regs),
-						 _PAGE_NO_CACHE);
-	}
-	return iic_regs;
-}
-
-#ifdef CONFIG_SMP
-
-/* Use the highest interrupt priorities for IPI */
-static inline int iic_ipi_to_irq(int ipi)
-{
-	return IIC_IPI_OFFSET + IIC_NUM_IPIS - 1 - ipi;
-}
-
-static inline int iic_irq_to_ipi(int irq)
-{
-	return IIC_NUM_IPIS - 1 - (irq - IIC_IPI_OFFSET);
-}
-
-void iic_setup_cpu(void)
-{
-	out_be64(&__get_cpu_var(iic).regs->prio, 0xff);
-}
-
-void iic_cause_IPI(int cpu, int mesg)
-{
-	out_be64(&per_cpu(iic, cpu).regs->generate, (IIC_NUM_IPIS - 1 - mesg) << 4);
-}
-
-static irqreturn_t iic_ipi_action(int irq, void *dev_id, struct pt_regs *regs)
-{
-	smp_message_recv(iic_irq_to_ipi(irq), regs);
-	return IRQ_HANDLED;
-}
-
-static void iic_request_ipi(int ipi, const char *name)
-{
-	int irq;
-
-	irq = iic_ipi_to_irq(ipi);
-	/* IPIs are marked SA_INTERRUPT as they must run with irqs
-	 * disabled */
-	get_irq_desc(irq)->handler = &iic_pic;
-	get_irq_desc(irq)->status |= IRQ_PER_CPU;
-	request_irq(irq, iic_ipi_action, SA_INTERRUPT, name, NULL);
-}
-
-void iic_request_IPIs(void)
-{
-	iic_request_ipi(PPC_MSG_CALL_FUNCTION, "IPI-call");
-	iic_request_ipi(PPC_MSG_RESCHEDULE, "IPI-resched");
-#ifdef CONFIG_DEBUGGER
-	iic_request_ipi(PPC_MSG_DEBUGGER_BREAK, "IPI-debug");
-#endif /* CONFIG_DEBUGGER */
-}
-#endif /* CONFIG_SMP */
-
-static void iic_setup_spe_handlers(void)
-{
-	int be, isrc;
-
-	/* Assume two threads per BE are present */
-	for (be=0; be < num_present_cpus() / 2; be++) {
-		for (isrc = 0; isrc < IIC_CLASS_STRIDE * 3; isrc++) {
-			int irq = IIC_NODE_STRIDE * be + IIC_SPE_OFFSET + isrc;
-			get_irq_desc(irq)->handler = &iic_pic;
-		}
-	}
-}
-
-void iic_init_IRQ(void)
-{
-	int cpu, irq_offset;
-	struct iic *iic;
-
-	irq_offset = 0;
-	for_each_cpu(cpu) {
-		iic = &per_cpu(iic, cpu);
-		iic->regs = find_iic(cpu);
-		if (iic->regs)
-			out_be64(&iic->regs->prio, 0xff);
-	}
-	iic_setup_spe_handlers();
-}