1 files changed, 0 insertions, 302 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/sysdev/xics/icp-native.c b/ANDROID_3.4.5/arch/powerpc/sysdev/xics/icp-native.c
deleted file mode 100644
index 4c79b6fb..00000000
--- a/ANDROID_3.4.5/arch/powerpc/sysdev/xics/icp-native.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * Copyright 2011 IBM Corporation.
- *
- *  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 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/irq.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/cpu.h>
-#include <linux/of.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-
-#include <asm/prom.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/irq.h>
-#include <asm/errno.h>
-#include <asm/xics.h>
-#include <asm/kvm_ppc.h>
-
-struct icp_ipl {
-	union {
-		u32 word;
-		u8 bytes[4];
-	} xirr_poll;
-	union {
-		u32 word;
-		u8 bytes[4];
-	} xirr;
-	u32 dummy;
-	union {
-		u32 word;
-		u8 bytes[4];
-	} qirr;
-	u32 link_a;
-	u32 link_b;
-	u32 link_c;
-};
-
-static struct icp_ipl __iomem *icp_native_regs[NR_CPUS];
-
-static inline unsigned int icp_native_get_xirr(void)
-{
-	int cpu = smp_processor_id();
-
-	return in_be32(&icp_native_regs[cpu]->xirr.word);
-}
-
-static inline void icp_native_set_xirr(unsigned int value)
-{
-	int cpu = smp_processor_id();
-
-	out_be32(&icp_native_regs[cpu]->xirr.word, value);
-}
-
-static inline void icp_native_set_cppr(u8 value)
-{
-	int cpu = smp_processor_id();
-
-	out_8(&icp_native_regs[cpu]->xirr.bytes[0], value);
-}
-
-static inline void icp_native_set_qirr(int n_cpu, u8 value)
-{
-	out_8(&icp_native_regs[n_cpu]->qirr.bytes[0], value);
-}
-
-static void icp_native_set_cpu_priority(unsigned char cppr)
-{
-	xics_set_base_cppr(cppr);
-	icp_native_set_cppr(cppr);
-	iosync();
-}
-
-static void icp_native_eoi(struct irq_data *d)
-{
-	unsigned int hw_irq = (unsigned int)irqd_to_hwirq(d);
-
-	iosync();
-	icp_native_set_xirr((xics_pop_cppr() << 24) | hw_irq);
-}
-
-static void icp_native_teardown_cpu(void)
-{
-	int cpu = smp_processor_id();
-
-	/* Clear any pending IPI */
-	icp_native_set_qirr(cpu, 0xff);
-}
-
-static void icp_native_flush_ipi(void)
-{
-	/* We take the ipi irq but and never return so we
-	 * need to EOI the IPI, but want to leave our priority 0
-	 *
-	 * should we check all the other interrupts too?
-	 * should we be flagging idle loop instead?
-	 * or creating some task to be scheduled?
-	 */
-
-	icp_native_set_xirr((0x00 << 24) | XICS_IPI);
-}
-
-static unsigned int icp_native_get_irq(void)
-{
-	unsigned int xirr = icp_native_get_xirr();
-	unsigned int vec = xirr & 0x00ffffff;
-	unsigned int irq;
-
-	if (vec == XICS_IRQ_SPURIOUS)
-		return NO_IRQ;
-
-	irq = irq_radix_revmap_lookup(xics_host, vec);
-	if (likely(irq != NO_IRQ)) {
-		xics_push_cppr(vec);
-		return irq;
-	}
-
-	/* We don't have a linux mapping, so have rtas mask it. */
-	xics_mask_unknown_vec(vec);
-
-	/* We might learn about it later, so EOI it */
-	icp_native_set_xirr(xirr);
-
-	return NO_IRQ;
-}
-
-#ifdef CONFIG_SMP
-
-static void icp_native_cause_ipi(int cpu, unsigned long data)
-{
-	icp_native_set_qirr(cpu, IPI_PRIORITY);
-}
-
-void xics_wake_cpu(int cpu)
-{
-	icp_native_set_qirr(cpu, IPI_PRIORITY);
-}
-EXPORT_SYMBOL_GPL(xics_wake_cpu);
-
-static irqreturn_t icp_native_ipi_action(int irq, void *dev_id)
-{
-	int cpu = smp_processor_id();
-
-	icp_native_set_qirr(cpu, 0xff);
-
-	return smp_ipi_demux();
-}
-
-#endif /* CONFIG_SMP */
-
-static int __init icp_native_map_one_cpu(int hw_id, unsigned long addr,
-					 unsigned long size)
-{
-	char *rname;
-	int i, cpu = -1;
-
-	/* This may look gross but it's good enough for now, we don't quite
-	 * have a hard -> linux processor id matching.
-	 */
-	for_each_possible_cpu(i) {
-		if (!cpu_present(i))
-			continue;
-		if (hw_id == get_hard_smp_processor_id(i)) {
-			cpu = i;
-			break;
-		}
-	}
-
-	/* Fail, skip that CPU. Don't print, it's normal, some XICS come up
-	 * with way more entries in there than you have CPUs
-	 */
-	if (cpu == -1)
-		return 0;
-
-	rname = kasprintf(GFP_KERNEL, "CPU %d [0x%x] Interrupt Presentation",
-			  cpu, hw_id);
-
-	if (!request_mem_region(addr, size, rname)) {
-		pr_warning("icp_native: Could not reserve ICP MMIO"
-			   " for CPU %d, interrupt server #0x%x\n",
-			   cpu, hw_id);
-		return -EBUSY;
-	}
-
-	icp_native_regs[cpu] = ioremap(addr, size);
-	kvmppc_set_xics_phys(cpu, addr);
-	if (!icp_native_regs[cpu]) {
-		pr_warning("icp_native: Failed ioremap for CPU %d, "
-			   "interrupt server #0x%x, addr %#lx\n",
-			   cpu, hw_id, addr);
-		release_mem_region(addr, size);
-		return -ENOMEM;
-	}
-	return 0;
-}
-
-static int __init icp_native_init_one_node(struct device_node *np,
-					   unsigned int *indx)
-{
-	unsigned int ilen;
-	const u32 *ireg;
-	int i;
-	int reg_tuple_size;
-	int num_servers = 0;
-
-	/* This code does the theorically broken assumption that the interrupt
-	 * server numbers are the same as the hard CPU numbers.
-	 * This happens to be the case so far but we are playing with fire...
-	 * should be fixed one of these days. -BenH.
-	 */
-	ireg = of_get_property(np, "ibm,interrupt-server-ranges", &ilen);
-
-	/* Do that ever happen ? we'll know soon enough... but even good'old
-	 * f80 does have that property ..
-	 */
-	WARN_ON((ireg == NULL) || (ilen != 2*sizeof(u32)));
-
-	if (ireg) {
-		*indx = of_read_number(ireg, 1);
-		if (ilen >= 2*sizeof(u32))
-			num_servers = of_read_number(ireg + 1, 1);
-	}
-
-	ireg = of_get_property(np, "reg", &ilen);
-	if (!ireg) {
-		pr_err("icp_native: Can't find interrupt reg property");
-		return -1;
-	}
-
-	reg_tuple_size = (of_n_addr_cells(np) + of_n_size_cells(np)) * 4;
-	if (((ilen % reg_tuple_size) != 0)
-	    || (num_servers && (num_servers != (ilen / reg_tuple_size)))) {
-		pr_err("icp_native: ICP reg len (%d) != num servers (%d)",
-		       ilen / reg_tuple_size, num_servers);
-		return -1;
-	}
-
-	for (i = 0; i < (ilen / reg_tuple_size); i++) {
-		struct resource r;
-		int err;
-
-		err = of_address_to_resource(np, i, &r);
-		if (err) {
-			pr_err("icp_native: Could not translate ICP MMIO"
-			       " for interrupt server 0x%x (%d)\n", *indx, err);
-			return -1;
-		}
-
-		if (icp_native_map_one_cpu(*indx, r.start, resource_size(&r)))
-			return -1;
-
-		(*indx)++;
-	}
-	return 0;
-}
-
-static const struct icp_ops icp_native_ops = {
-	.get_irq	= icp_native_get_irq,
-	.eoi		= icp_native_eoi,
-	.set_priority	= icp_native_set_cpu_priority,
-	.teardown_cpu	= icp_native_teardown_cpu,
-	.flush_ipi	= icp_native_flush_ipi,
-#ifdef CONFIG_SMP
-	.ipi_action	= icp_native_ipi_action,
-	.cause_ipi	= icp_native_cause_ipi,
-#endif
-};
-
-int __init icp_native_init(void)
-{
-	struct device_node *np;
-	u32 indx = 0;
-	int found = 0;
-
-	for_each_compatible_node(np, NULL, "ibm,ppc-xicp")
-		if (icp_native_init_one_node(np, &indx) == 0)
-			found = 1;
-	if (!found) {
-		for_each_node_by_type(np,
-			"PowerPC-External-Interrupt-Presentation") {
-				if (icp_native_init_one_node(np, &indx) == 0)
-					found = 1;
-		}
-	}
-
-	if (found == 0)
-		return -ENODEV;
-
-	icp_ops = &icp_native_ops;
-
-	return 0;
-}