diff options
Diffstat (limited to 'arch/sparc64/kernel/devices.c')
| -rw-r--r-- | arch/sparc64/kernel/devices.c | 250 |
1 files changed, 57 insertions, 193 deletions
diff --git a/arch/sparc64/kernel/devices.c b/arch/sparc64/kernel/devices.c index 007e8922cd1..f8ef2f2b9b3 100644 --- a/arch/sparc64/kernel/devices.c +++ b/arch/sparc64/kernel/devices.c @@ -4,7 +4,6 @@ * 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> @@ -21,8 +20,6 @@ #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 @@ -32,134 +29,6 @@ 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 *)®s, 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 *) ®, 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) @@ -167,38 +36,44 @@ static const char *cpu_mid_prop(void) return "portid"; } -static int get_cpu_mid(int prom_node) +static int get_cpu_mid(struct device_node *dp) { + struct property *prop; + if (tlb_type == hypervisor) { - struct linux_prom64_registers reg; + struct linux_prom64_registers *reg; + int len; - if (prom_getproplen(prom_node, "cpuid") == 4) - return prom_getintdefault(prom_node, "cpuid", 0); + prop = of_find_property(dp, "cpuid", &len); + if (prop && len == 4) + return *(int *) prop->value; - prom_getproperty(prom_node, "reg", (char *) ®, sizeof(reg)); - return (reg.phys_addr >> 32) & 0x0fffffffUL; + prop = of_find_property(dp, "reg", NULL); + reg = prop->value; + return (reg[0].phys_addr >> 32) & 0x0fffffffUL; } else { const char *prop_name = cpu_mid_prop(); - return prom_getintdefault(prom_node, prop_name, 0); + prop = of_find_property(dp, prop_name, NULL); + if (prop) + return *(int *) prop->value; + return 0; } } -static int check_cpu_node(int nd, int *cur_inst, - int (*compare)(int, int, void *), void *compare_arg, - int *prom_node, int *mid) +static int check_cpu_node(struct device_node *dp, int *cur_inst, + int (*compare)(struct device_node *, int, void *), + void *compare_arg, + struct device_node **dev_node, int *mid) { - char node_str[128]; - - prom_getstring(nd, "device_type", node_str, sizeof(node_str)); - if (strcmp(node_str, "cpu")) + if (strcmp(dp->type, "cpu")) return -ENODEV; - if (!compare(nd, *cur_inst, compare_arg)) { - if (prom_node) - *prom_node = nd; + if (!compare(dp, *cur_inst, compare_arg)) { + if (dev_node) + *dev_node = dp; if (mid) - *mid = get_cpu_mid(nd); + *mid = get_cpu_mid(dp); return 0; } @@ -207,25 +82,18 @@ static int check_cpu_node(int nd, int *cur_inst, return -ENODEV; } -static int __cpu_find_by(int (*compare)(int, int, void *), void *compare_arg, - int *prom_node, int *mid) +static int __cpu_find_by(int (*compare)(struct device_node *, int, void *), + void *compare_arg, + struct device_node **dev_node, int *mid) { - int nd, cur_inst, err; + struct device_node *dp; + int cur_inst; - 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); + for_each_node_by_type(dp, "cpu") { + int err = check_cpu_node(dp, &cur_inst, + compare, compare_arg, + dev_node, mid); if (err == 0) return 0; } @@ -233,7 +101,7 @@ static int __cpu_find_by(int (*compare)(int, int, void *), void *compare_arg, return -ENODEV; } -static int cpu_instance_compare(int nd, int instance, void *_arg) +static int cpu_instance_compare(struct device_node *dp, int instance, void *_arg) { int desired_instance = (int) (long) _arg; @@ -242,27 +110,27 @@ static int cpu_instance_compare(int nd, int instance, void *_arg) return -ENODEV; } -int cpu_find_by_instance(int instance, int *prom_node, int *mid) +int cpu_find_by_instance(int instance, struct device_node **dev_node, int *mid) { return __cpu_find_by(cpu_instance_compare, (void *)(long)instance, - prom_node, mid); + dev_node, mid); } -static int cpu_mid_compare(int nd, int instance, void *_arg) +static int cpu_mid_compare(struct device_node *dp, int instance, void *_arg) { int desired_mid = (int) (long) _arg; int this_mid; - this_mid = get_cpu_mid(nd); + this_mid = get_cpu_mid(dp); if (this_mid == desired_mid) return 0; return -ENODEV; } -int cpu_find_by_mid(int mid, int *prom_node) +int cpu_find_by_mid(int mid, struct device_node **dev_node) { return __cpu_find_by(cpu_mid_compare, (void *)(long)mid, - prom_node, NULL); + dev_node, NULL); } void __init device_scan(void) @@ -274,50 +142,47 @@ void __init device_scan(void) #ifndef CONFIG_SMP { - int err, cpu_node, def; + struct device_node *dp; + int err, def; - err = cpu_find_by_instance(0, &cpu_node, NULL); + err = cpu_find_by_instance(0, &dp, 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); + cpu_data(0).clock_tick = + of_getintprop_default(dp, "clock-frequency", 0); def = ((tlb_type == hypervisor) ? (8 * 1024) : (16 * 1024)); - cpu_data(0).dcache_size = prom_getintdefault(cpu_node, - "dcache-size", - def); + cpu_data(0).dcache_size = of_getintprop_default(dp, + "dcache-size", + def); def = 32; cpu_data(0).dcache_line_size = - prom_getintdefault(cpu_node, "dcache-line-size", - def); + of_getintprop_default(dp, "dcache-line-size", def); def = 16 * 1024; - cpu_data(0).icache_size = prom_getintdefault(cpu_node, - "icache-size", - def); + cpu_data(0).icache_size = of_getintprop_default(dp, + "icache-size", + def); def = 32; cpu_data(0).icache_line_size = - prom_getintdefault(cpu_node, "icache-line-size", - def); + of_getintprop_default(dp, "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); + cpu_data(0).ecache_size = of_getintprop_default(dp, + "ecache-size", + def); def = 64; cpu_data(0).ecache_line_size = - prom_getintdefault(cpu_node, "ecache-line-size", - def); + of_getintprop_default(dp, "ecache-line-size", def); printk("CPU[0]: Caches " "D[sz(%d):line_sz(%d)] " "I[sz(%d):line_sz(%d)] " @@ -328,7 +193,6 @@ void __init device_scan(void) } #endif - sun4v_virtual_device_probe(); central_probe(); cpu_probe(); |