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Diffstat (limited to 'arch/sparc64/kernel/devices.c')
-rw-r--r--arch/sparc64/kernel/devices.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/arch/sparc64/kernel/devices.c b/arch/sparc64/kernel/devices.c
deleted file mode 100644
index 007e8922cd1..00000000000
--- a/arch/sparc64/kernel/devices.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/* devices.c: Initial scan of the prom device tree for important
- * Sparc device nodes which we need to find.
- *
- * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/threads.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/string.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-#include <linux/bootmem.h>
-
-#include <asm/page.h>
-#include <asm/oplib.h>
-#include <asm/system.h>
-#include <asm/smp.h>
-#include <asm/spitfire.h>
-#include <asm/timer.h>
-#include <asm/cpudata.h>
-#include <asm/vdev.h>
-#include <asm/irq.h>
-
-/* Used to synchronize acceses to NatSemi SUPER I/O chip configure
- * operations in asm/ns87303.h
- */
-DEFINE_SPINLOCK(ns87303_lock);
-
-extern void cpu_probe(void);
-extern void central_probe(void);
-
-u32 sun4v_vdev_devhandle;
-int sun4v_vdev_root;
-
-struct vdev_intmap {
- unsigned int phys;
- unsigned int irq;
- unsigned int cnode;
- unsigned int cinterrupt;
-};
-
-struct vdev_intmask {
- unsigned int phys;
- unsigned int interrupt;
- unsigned int __unused;
-};
-
-static struct vdev_intmap *vdev_intmap;
-static int vdev_num_intmap;
-static struct vdev_intmask vdev_intmask;
-
-static void __init sun4v_virtual_device_probe(void)
-{
- struct linux_prom64_registers regs;
- struct vdev_intmap *ip;
- int node, sz, err;
-
- if (tlb_type != hypervisor)
- return;
-
- node = prom_getchild(prom_root_node);
- node = prom_searchsiblings(node, "virtual-devices");
- if (!node) {
- prom_printf("SUN4V: Fatal error, no virtual-devices node.\n");
- prom_halt();
- }
-
- sun4v_vdev_root = node;
-
- prom_getproperty(node, "reg", (char *)&regs, sizeof(regs));
- sun4v_vdev_devhandle = (regs.phys_addr >> 32UL) & 0x0fffffff;
-
- sz = prom_getproplen(node, "interrupt-map");
- if (sz <= 0) {
- prom_printf("SUN4V: Error, no vdev interrupt-map.\n");
- prom_halt();
- }
-
- if ((sz % sizeof(*ip)) != 0) {
- prom_printf("SUN4V: Bogus interrupt-map property size %d\n",
- sz);
- prom_halt();
- }
-
- vdev_intmap = ip = alloc_bootmem_low_pages(sz);
- if (!vdev_intmap) {
- prom_printf("SUN4V: Error, cannot allocate vdev_intmap.\n");
- prom_halt();
- }
-
- err = prom_getproperty(node, "interrupt-map", (char *) ip, sz);
- if (err == -1) {
- prom_printf("SUN4V: Fatal error, no vdev interrupt-map.\n");
- prom_halt();
- }
- if (err != sz) {
- prom_printf("SUN4V: Inconsistent interrupt-map size, "
- "proplen(%d) vs getprop(%d).\n", sz,err);
- prom_halt();
- }
-
- vdev_num_intmap = err / sizeof(*ip);
-
- err = prom_getproperty(node, "interrupt-map-mask",
- (char *) &vdev_intmask,
- sizeof(vdev_intmask));
- if (err <= 0) {
- prom_printf("SUN4V: Fatal error, no vdev "
- "interrupt-map-mask.\n");
- prom_halt();
- }
- if (err % sizeof(vdev_intmask)) {
- prom_printf("SUN4V: Bogus interrupt-map-mask "
- "property size %d\n", err);
- prom_halt();
- }
-
- printk("SUN4V: virtual-devices devhandle[%x]\n",
- sun4v_vdev_devhandle);
-}
-
-unsigned int sun4v_vdev_device_interrupt(unsigned int dev_node)
-{
- unsigned int irq, reg;
- int err, i;
-
- err = prom_getproperty(dev_node, "interrupts",
- (char *) &irq, sizeof(irq));
- if (err <= 0) {
- printk("VDEV: Cannot get \"interrupts\" "
- "property for OBP node %x\n", dev_node);
- return 0;
- }
-
- err = prom_getproperty(dev_node, "reg",
- (char *) &reg, sizeof(reg));
- if (err <= 0) {
- printk("VDEV: Cannot get \"reg\" "
- "property for OBP node %x\n", dev_node);
- return 0;
- }
-
- for (i = 0; i < vdev_num_intmap; i++) {
- if (vdev_intmap[i].phys == (reg & vdev_intmask.phys) &&
- vdev_intmap[i].irq == (irq & vdev_intmask.interrupt)) {
- irq = vdev_intmap[i].cinterrupt;
- break;
- }
- }
-
- if (i == vdev_num_intmap) {
- printk("VDEV: No matching interrupt map entry "
- "for OBP node %x\n", dev_node);
- return 0;
- }
-
- return sun4v_build_irq(sun4v_vdev_devhandle, irq, 5, 0);
-}
-
-static const char *cpu_mid_prop(void)
-{
- if (tlb_type == spitfire)
- return "upa-portid";
- return "portid";
-}
-
-static int get_cpu_mid(int prom_node)
-{
- if (tlb_type == hypervisor) {
- struct linux_prom64_registers reg;
-
- if (prom_getproplen(prom_node, "cpuid") == 4)
- return prom_getintdefault(prom_node, "cpuid", 0);
-
- prom_getproperty(prom_node, "reg", (char *) &reg, sizeof(reg));
- return (reg.phys_addr >> 32) & 0x0fffffffUL;
- } else {
- const char *prop_name = cpu_mid_prop();
-
- return prom_getintdefault(prom_node, prop_name, 0);
- }
-}
-
-static int check_cpu_node(int nd, int *cur_inst,
- int (*compare)(int, int, void *), void *compare_arg,
- int *prom_node, int *mid)
-{
- char node_str[128];
-
- prom_getstring(nd, "device_type", node_str, sizeof(node_str));
- if (strcmp(node_str, "cpu"))
- return -ENODEV;
-
- if (!compare(nd, *cur_inst, compare_arg)) {
- if (prom_node)
- *prom_node = nd;
- if (mid)
- *mid = get_cpu_mid(nd);
- return 0;
- }
-
- (*cur_inst)++;
-
- return -ENODEV;
-}
-
-static int __cpu_find_by(int (*compare)(int, int, void *), void *compare_arg,
- int *prom_node, int *mid)
-{
- int nd, cur_inst, err;
-
- nd = prom_root_node;
- cur_inst = 0;
-
- err = check_cpu_node(nd, &cur_inst,
- compare, compare_arg,
- prom_node, mid);
- if (err == 0)
- return 0;
-
- nd = prom_getchild(nd);
- while ((nd = prom_getsibling(nd)) != 0) {
- err = check_cpu_node(nd, &cur_inst,
- compare, compare_arg,
- prom_node, mid);
- if (err == 0)
- return 0;
- }
-
- return -ENODEV;
-}
-
-static int cpu_instance_compare(int nd, int instance, void *_arg)
-{
- int desired_instance = (int) (long) _arg;
-
- if (instance == desired_instance)
- return 0;
- return -ENODEV;
-}
-
-int cpu_find_by_instance(int instance, int *prom_node, int *mid)
-{
- return __cpu_find_by(cpu_instance_compare, (void *)(long)instance,
- prom_node, mid);
-}
-
-static int cpu_mid_compare(int nd, int instance, void *_arg)
-{
- int desired_mid = (int) (long) _arg;
- int this_mid;
-
- this_mid = get_cpu_mid(nd);
- if (this_mid == desired_mid)
- return 0;
- return -ENODEV;
-}
-
-int cpu_find_by_mid(int mid, int *prom_node)
-{
- return __cpu_find_by(cpu_mid_compare, (void *)(long)mid,
- prom_node, NULL);
-}
-
-void __init device_scan(void)
-{
- /* FIX ME FAST... -DaveM */
- ioport_resource.end = 0xffffffffffffffffUL;
-
- prom_printf("Booting Linux...\n");
-
-#ifndef CONFIG_SMP
- {
- int err, cpu_node, def;
-
- err = cpu_find_by_instance(0, &cpu_node, NULL);
- if (err) {
- prom_printf("No cpu nodes, cannot continue\n");
- prom_halt();
- }
- cpu_data(0).clock_tick = prom_getintdefault(cpu_node,
- "clock-frequency",
- 0);
-
- def = ((tlb_type == hypervisor) ?
- (8 * 1024) :
- (16 * 1024));
- cpu_data(0).dcache_size = prom_getintdefault(cpu_node,
- "dcache-size",
- def);
-
- def = 32;
- cpu_data(0).dcache_line_size =
- prom_getintdefault(cpu_node, "dcache-line-size",
- def);
-
- def = 16 * 1024;
- cpu_data(0).icache_size = prom_getintdefault(cpu_node,
- "icache-size",
- def);
-
- def = 32;
- cpu_data(0).icache_line_size =
- prom_getintdefault(cpu_node, "icache-line-size",
- def);
-
- def = ((tlb_type == hypervisor) ?
- (3 * 1024 * 1024) :
- (4 * 1024 * 1024));
- cpu_data(0).ecache_size = prom_getintdefault(cpu_node,
- "ecache-size",
- def);
-
- def = 64;
- cpu_data(0).ecache_line_size =
- prom_getintdefault(cpu_node, "ecache-line-size",
- def);
- printk("CPU[0]: Caches "
- "D[sz(%d):line_sz(%d)] "
- "I[sz(%d):line_sz(%d)] "
- "E[sz(%d):line_sz(%d)]\n",
- cpu_data(0).dcache_size, cpu_data(0).dcache_line_size,
- cpu_data(0).icache_size, cpu_data(0).icache_line_size,
- cpu_data(0).ecache_size, cpu_data(0).ecache_line_size);
- }
-#endif
-
- sun4v_virtual_device_probe();
- central_probe();
-
- cpu_probe();
-}
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