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-rw-r--r--arch/sparc/kernel/devices.c25
-rw-r--r--arch/sparc/kernel/irq.c2
-rw-r--r--arch/sparc/kernel/of_device.c207
-rw-r--r--arch/sparc/kernel/prom.c9
-rw-r--r--arch/sparc/kernel/setup.c6
-rw-r--r--arch/sparc/kernel/smp.c97
-rw-r--r--arch/sparc/kernel/sparc_ksyms.c1
-rw-r--r--arch/sparc/kernel/sun4d_smp.c105
-rw-r--r--arch/sparc/kernel/sun4m_smp.c2
-rw-r--r--arch/sparc/kernel/sys_sparc.c18
-rw-r--r--arch/sparc/kernel/time.c74
11 files changed, 334 insertions, 212 deletions
diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index adba9dfee35..af90a5f9ab5 100644
--- a/arch/sparc/kernel/devices.c
+++ b/arch/sparc/kernel/devices.c
@@ -15,6 +15,7 @@
#include <asm/page.h>
#include <asm/oplib.h>
+#include <asm/prom.h>
#include <asm/smp.h>
#include <asm/system.h>
#include <asm/cpudata.h>
@@ -34,12 +35,6 @@ 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;
@@ -59,20 +54,14 @@ static int check_cpu_node(int nd, int *cur_inst,
static int __cpu_find_by(int (*compare)(int, int, void *), void *compare_arg,
int *prom_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)
- 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->node, &cur_inst,
+ compare, compare_arg,
+ prom_node, mid);
if (!err)
return 0;
}
diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index cde73327ca9..72f0201051a 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -329,7 +329,7 @@ void handler_irq(int irq, struct pt_regs * regs)
disable_pil_irq(irq);
#ifdef CONFIG_SMP
/* Only rotate on lower priority IRQ's (scsi, ethernet, etc.). */
- if(irq < 10)
+ if((sparc_cpu_model==sun4m) && (irq < 10))
smp4m_irq_rotate(cpu);
#endif
action = sparc_irq[irq].action;
diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index bc956c53037..97bf87e8cdd 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -183,7 +183,7 @@ struct bus_type of_bus_type = {
};
EXPORT_SYMBOL(of_bus_type);
-static inline u64 of_read_addr(u32 *cell, int size)
+static inline u64 of_read_addr(const u32 *cell, int size)
{
u64 r = 0;
while (size--)
@@ -209,8 +209,8 @@ struct of_bus {
int (*match)(struct device_node *parent);
void (*count_cells)(struct device_node *child,
int *addrc, int *sizec);
- u64 (*map)(u32 *addr, u32 *range, int na, int ns, int pna);
- int (*translate)(u32 *addr, u64 offset, int na);
+ int (*map)(u32 *addr, const u32 *range,
+ int na, int ns, int pna);
unsigned int (*get_flags)(u32 *addr);
};
@@ -224,27 +224,49 @@ static void of_bus_default_count_cells(struct device_node *dev,
get_cells(dev, addrc, sizec);
}
-static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna)
+/* Make sure the least significant 64-bits are in-range. Even
+ * for 3 or 4 cell values it is a good enough approximation.
+ */
+static int of_out_of_range(const u32 *addr, const u32 *base,
+ const u32 *size, int na, int ns)
{
- u64 cp, s, da;
+ u64 a = of_read_addr(addr, na);
+ u64 b = of_read_addr(base, na);
- cp = of_read_addr(range, na);
- s = of_read_addr(range + na + pna, ns);
- da = of_read_addr(addr, na);
+ if (a < b)
+ return 1;
- if (da < cp || da >= (cp + s))
- return OF_BAD_ADDR;
- return da - cp;
+ b += of_read_addr(size, ns);
+ if (a >= b)
+ return 1;
+
+ return 0;
}
-static int of_bus_default_translate(u32 *addr, u64 offset, int na)
+static int of_bus_default_map(u32 *addr, const u32 *range,
+ int na, int ns, int pna)
{
- u64 a = of_read_addr(addr, na);
- memset(addr, 0, na * 4);
- a += offset;
- if (na > 1)
- addr[na - 2] = a >> 32;
- addr[na - 1] = a & 0xffffffffu;
+ u32 result[OF_MAX_ADDR_CELLS];
+ int i;
+
+ if (ns > 2) {
+ printk("of_device: Cannot handle size cells (%d) > 2.", ns);
+ return -EINVAL;
+ }
+
+ if (of_out_of_range(addr, range, range + na + pna, na, ns))
+ return -EINVAL;
+
+ /* Start with the parent range base. */
+ memcpy(result, range + na, pna * 4);
+
+ /* Add in the child address offset. */
+ for (i = 0; i < na; i++)
+ result[pna - 1 - i] +=
+ (addr[na - 1 - i] -
+ range[na - 1 - i]);
+
+ memcpy(addr, result, pna * 4);
return 0;
}
@@ -254,14 +276,26 @@ static unsigned int of_bus_default_get_flags(u32 *addr)
return IORESOURCE_MEM;
}
-
/*
* PCI bus specific translator
*/
static int of_bus_pci_match(struct device_node *np)
{
- return !strcmp(np->type, "pci") || !strcmp(np->type, "pciex");
+ if (!strcmp(np->type, "pci") || !strcmp(np->type, "pciex")) {
+ /* Do not do PCI specific frobbing if the
+ * PCI bridge lacks a ranges property. We
+ * want to pass it through up to the next
+ * parent as-is, not with the PCI translate
+ * method which chops off the top address cell.
+ */
+ if (!of_find_property(np, "ranges", NULL))
+ return 0;
+
+ return 1;
+ }
+
+ return 0;
}
static void of_bus_pci_count_cells(struct device_node *np,
@@ -273,27 +307,32 @@ static void of_bus_pci_count_cells(struct device_node *np,
*sizec = 2;
}
-static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna)
+static int of_bus_pci_map(u32 *addr, const u32 *range,
+ int na, int ns, int pna)
{
- u64 cp, s, da;
+ u32 result[OF_MAX_ADDR_CELLS];
+ int i;
/* Check address type match */
if ((addr[0] ^ range[0]) & 0x03000000)
- return OF_BAD_ADDR;
+ return -EINVAL;
- /* Read address values, skipping high cell */
- cp = of_read_addr(range + 1, na - 1);
- s = of_read_addr(range + na + pna, ns);
- da = of_read_addr(addr + 1, na - 1);
+ if (of_out_of_range(addr + 1, range + 1, range + na + pna,
+ na - 1, ns))
+ return -EINVAL;
- if (da < cp || da >= (cp + s))
- return OF_BAD_ADDR;
- return da - cp;
-}
+ /* Start with the parent range base. */
+ memcpy(result, range + na, pna * 4);
-static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
-{
- return of_bus_default_translate(addr + 1, offset, na - 1);
+ /* Add in the child address offset, skipping high cell. */
+ for (i = 0; i < na - 1; i++)
+ result[pna - 1 - i] +=
+ (addr[na - 1 - i] -
+ range[na - 1 - i]);
+
+ memcpy(addr, result, pna * 4);
+
+ return 0;
}
static unsigned int of_bus_pci_get_flags(u32 *addr)
@@ -332,16 +371,11 @@ static void of_bus_sbus_count_cells(struct device_node *child,
*sizec = 1;
}
-static u64 of_bus_sbus_map(u32 *addr, u32 *range, int na, int ns, int pna)
+static int of_bus_sbus_map(u32 *addr, const u32 *range, int na, int ns, int pna)
{
return of_bus_default_map(addr, range, na, ns, pna);
}
-static int of_bus_sbus_translate(u32 *addr, u64 offset, int na)
-{
- return of_bus_default_translate(addr, offset, na);
-}
-
static unsigned int of_bus_sbus_get_flags(u32 *addr)
{
return IORESOURCE_MEM;
@@ -360,7 +394,6 @@ static struct of_bus of_busses[] = {
.match = of_bus_pci_match,
.count_cells = of_bus_pci_count_cells,
.map = of_bus_pci_map,
- .translate = of_bus_pci_translate,
.get_flags = of_bus_pci_get_flags,
},
/* SBUS */
@@ -370,7 +403,6 @@ static struct of_bus of_busses[] = {
.match = of_bus_sbus_match,
.count_cells = of_bus_sbus_count_cells,
.map = of_bus_sbus_map,
- .translate = of_bus_sbus_translate,
.get_flags = of_bus_sbus_get_flags,
},
/* Default */
@@ -380,7 +412,6 @@ static struct of_bus of_busses[] = {
.match = NULL,
.count_cells = of_bus_default_count_cells,
.map = of_bus_default_map,
- .translate = of_bus_default_translate,
.get_flags = of_bus_default_get_flags,
},
};
@@ -405,33 +436,34 @@ static int __init build_one_resource(struct device_node *parent,
u32 *ranges;
unsigned int rlen;
int rone;
- u64 offset = OF_BAD_ADDR;
ranges = of_get_property(parent, "ranges", &rlen);
if (ranges == NULL || rlen == 0) {
- offset = of_read_addr(addr, na);
- memset(addr, 0, pna * 4);
- goto finish;
+ u32 result[OF_MAX_ADDR_CELLS];
+ int i;
+
+ memset(result, 0, pna * 4);
+ for (i = 0; i < na; i++)
+ result[pna - 1 - i] =
+ addr[na - 1 - i];
+
+ memcpy(addr, result, pna * 4);
+ return 0;
}
/* Now walk through the ranges */
rlen /= 4;
rone = na + pna + ns;
for (; rlen >= rone; rlen -= rone, ranges += rone) {
- offset = bus->map(addr, ranges, na, ns, pna);
- if (offset != OF_BAD_ADDR)
- break;
+ if (!bus->map(addr, ranges, na, ns, pna))
+ return 0;
}
- if (offset == OF_BAD_ADDR)
- return 1;
- memcpy(addr, ranges + na, 4 * pna);
-
-finish:
- /* Translate it into parent bus space */
- return pbus->translate(addr, offset, pna);
+ return 1;
}
+static int of_resource_verbose;
+
static void __init build_device_resources(struct of_device *op,
struct device *parent)
{
@@ -497,7 +529,8 @@ static void __init build_device_resources(struct of_device *op,
pbus = of_match_bus(pp);
pbus->count_cells(dp, &pna, &pns);
- if (build_one_resource(dp, bus, pbus, addr, dna, dns, pna))
+ if (build_one_resource(dp, bus, pbus, addr,
+ dna, dns, pna))
break;
dna = pna;
@@ -507,6 +540,12 @@ static void __init build_device_resources(struct of_device *op,
build_res:
memset(r, 0, sizeof(*r));
+
+ if (of_resource_verbose)
+ printk("%s reg[%d] -> %llx\n",
+ op->node->full_name, index,
+ result);
+
if (result != OF_BAD_ADDR) {
r->start = result & 0xffffffff;
r->end = result + size - 1;
@@ -557,14 +596,41 @@ static struct of_device * __init scan_one_device(struct device_node *dp,
static int pil_to_sbus[] = {
0, 0, 1, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 0,
};
- struct device_node *busp = dp->parent;
+ struct device_node *io_unit, *sbi = dp->parent;
struct linux_prom_registers *regs;
- int board = of_getintprop_default(busp, "board#", 0);
- int slot;
+ int board, slot;
+
+ while (sbi) {
+ if (!strcmp(sbi->name, "sbi"))
+ break;
+
+ sbi = sbi->parent;
+ }
+ if (!sbi)
+ goto build_resources;
regs = of_get_property(dp, "reg", NULL);
+ if (!regs)
+ goto build_resources;
+
slot = regs->which_io;
+ /* If SBI's parent is not io-unit or the io-unit lacks
+ * a "board#" property, something is very wrong.
+ */
+ if (!sbi->parent || strcmp(sbi->parent->name, "io-unit")) {
+ printk("%s: Error, parent is not io-unit.\n",
+ sbi->full_name);
+ goto build_resources;
+ }
+ io_unit = sbi->parent;
+ board = of_getintprop_default(io_unit, "board#", -1);
+ if (board == -1) {
+ printk("%s: Error, lacks board# property.\n",
+ io_unit->full_name);
+ goto build_resources;
+ }
+
for (i = 0; i < op->num_irqs; i++) {
int this_irq = op->irqs[i];
int sbusl = pil_to_sbus[this_irq];
@@ -578,6 +644,7 @@ static struct of_device * __init scan_one_device(struct device_node *dp,
}
}
+build_resources:
build_device_resources(op, parent);
op->dev.parent = parent;
@@ -643,6 +710,18 @@ static int __init of_bus_driver_init(void)
postcore_initcall(of_bus_driver_init);
+static int __init of_debug(char *str)
+{
+ int val = 0;
+
+ get_option(&str, &val);
+ if (val & 1)
+ of_resource_verbose = 1;
+ return 1;
+}
+
+__setup("of_debug=", of_debug);
+
int of_register_driver(struct of_platform_driver *drv, struct bus_type *bus)
{
/* initialize common driver fields */
@@ -695,9 +774,11 @@ int of_device_register(struct of_device *ofdev)
if (rc)
return rc;
- device_create_file(&ofdev->dev, &dev_attr_devspec);
+ rc = device_create_file(&ofdev->dev, &dev_attr_devspec);
+ if (rc)
+ device_unregister(&ofdev->dev);
- return 0;
+ return rc;
}
void of_device_unregister(struct of_device *ofdev)
diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c
index 4b06dcb00eb..4ca9e5fc97f 100644
--- a/arch/sparc/kernel/prom.c
+++ b/arch/sparc/kernel/prom.c
@@ -444,6 +444,7 @@ static struct property * __init build_one_prop(phandle node, char *prev, char *s
static struct property *tmp = NULL;
struct property *p;
int len;
+ const char *name;
if (tmp) {
p = tmp;
@@ -456,19 +457,21 @@ static struct property * __init build_one_prop(phandle node, char *prev, char *s
p->name = (char *) (p + 1);
if (special_name) {
+ strcpy(p->name, special_name);
p->length = special_len;
p->value = prom_early_alloc(special_len);
memcpy(p->value, special_val, special_len);
} else {
if (prev == NULL) {
- prom_firstprop(node, p->name);
+ name = prom_firstprop(node, NULL);
} else {
- prom_nextprop(node, prev, p->name);
+ name = prom_nextprop(node, prev, NULL);
}
- if (strlen(p->name) == 0) {
+ if (strlen(name) == 0) {
tmp = p;
return NULL;
}
+ strcpy(p->name, name);
p->length = prom_getproplen(node, p->name);
if (p->length <= 0) {
p->length = 0;
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 8606ef4e52e..0251cab4708 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -17,7 +17,7 @@
#include <asm/smp.h>
#include <linux/user.h>
#include <linux/a.out.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/seq_file.h>
@@ -348,9 +348,9 @@ void __init setup_arch(char **cmdline_p)
init_mm.context = (unsigned long) NO_CONTEXT;
init_task.thread.kregs = &fake_swapper_regs;
- smp_setup_cpu_possible_map();
-
paging_init();
+
+ smp_setup_cpu_possible_map();
}
static int __init set_preferred_console(void)
diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
index 6135d4faeee..276f22881d0 100644
--- a/arch/sparc/kernel/smp.c
+++ b/arch/sparc/kernel/smp.c
@@ -34,7 +34,6 @@
#include <asm/tlbflush.h>
#include <asm/cpudata.h>
-volatile int smp_processors_ready = 0;
int smp_num_cpus = 1;
volatile unsigned long cpu_callin_map[NR_CPUS] __initdata = {0,};
unsigned char boot_cpu_id = 0;
@@ -87,6 +86,7 @@ void __cpuinit smp_store_cpu_info(int id)
void __init smp_cpus_done(unsigned int max_cpus)
{
extern void smp4m_smp_done(void);
+ extern void smp4d_smp_done(void);
unsigned long bogosum = 0;
int cpu, num;
@@ -100,8 +100,34 @@ void __init smp_cpus_done(unsigned int max_cpus)
num, bogosum/(500000/HZ),
(bogosum/(5000/HZ))%100);
- BUG_ON(sparc_cpu_model != sun4m);
- smp4m_smp_done();
+ switch(sparc_cpu_model) {
+ case sun4:
+ printk("SUN4\n");
+ BUG();
+ break;
+ case sun4c:
+ printk("SUN4C\n");
+ BUG();
+ break;
+ case sun4m:
+ smp4m_smp_done();
+ break;
+ case sun4d:
+ smp4d_smp_done();
+ break;
+ case sun4e:
+ printk("SUN4E\n");
+ BUG();
+ break;
+ case sun4u:
+ printk("SUN4U\n");
+ BUG();
+ break;
+ default:
+ printk("UNKNOWN!\n");
+ BUG();
+ break;
+ };
}
void cpu_panic(void)
@@ -267,9 +293,9 @@ int setup_profiling_timer(unsigned int multiplier)
void __init smp_prepare_cpus(unsigned int max_cpus)
{
extern void smp4m_boot_cpus(void);
+ extern void smp4d_boot_cpus(void);
int i, cpuid, extra;
- BUG_ON(sparc_cpu_model != sun4m);
printk("Entering SMP Mode...\n");
extra = 0;
@@ -283,7 +309,34 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
smp_store_cpu_info(boot_cpu_id);
- smp4m_boot_cpus();
+ switch(sparc_cpu_model) {
+ case sun4:
+ printk("SUN4\n");
+ BUG();
+ break;
+ case sun4c:
+ printk("SUN4C\n");
+ BUG();
+ break;
+ case sun4m:
+ smp4m_boot_cpus();
+ break;
+ case sun4d:
+ smp4d_boot_cpus();
+ break;
+ case sun4e:
+ printk("SUN4E\n");
+ BUG();
+ break;
+ case sun4u:
+ printk("SUN4U\n");
+ BUG();
+ break;
+ default:
+ printk("UNKNOWN!\n");
+ BUG();
+ break;
+ };
}
/* Set this up early so that things like the scheduler can init
@@ -323,9 +376,37 @@ void __init smp_prepare_boot_cpu(void)
int __cpuinit __cpu_up(unsigned int cpu)
{
extern int smp4m_boot_one_cpu(int);
- int ret;
-
- ret = smp4m_boot_one_cpu(cpu);
+ extern int smp4d_boot_one_cpu(int);
+ int ret=0;
+
+ switch(sparc_cpu_model) {
+ case sun4:
+ printk("SUN4\n");
+ BUG();
+ break;
+ case sun4c:
+ printk("SUN4C\n");
+ BUG();
+ break;
+ case sun4m:
+ ret = smp4m_boot_one_cpu(cpu);
+ break;
+ case sun4d:
+ ret = smp4d_boot_one_cpu(cpu);
+ break;
+ case sun4e:
+ printk("SUN4E\n");
+ BUG();
+ break;
+ case sun4u:
+ printk("SUN4U\n");
+ BUG();
+ break;
+ default:
+ printk("UNKNOWN!\n");
+ BUG();
+ break;
+ };
if (!ret) {
cpu_set(cpu, smp_commenced_mask);
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 5fb987fc3d6..4d441a554d3 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -237,7 +237,6 @@ EXPORT_SYMBOL(prom_node_has_property);
EXPORT_SYMBOL(prom_setprop);
EXPORT_SYMBOL(saved_command_line);
EXPORT_SYMBOL(prom_apply_obio_ranges);
-EXPORT_SYMBOL(prom_getname);
EXPORT_SYMBOL(prom_feval);
EXPORT_SYMBOL(prom_getbool);
EXPORT_SYMBOL(prom_getstring);
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index b141b7ee671..3ff4edd3281 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -42,16 +42,11 @@ extern ctxd_t *srmmu_ctx_table_phys;
extern void calibrate_delay(void);
-extern volatile int smp_processors_ready;
-extern int smp_num_cpus;
+static volatile int smp_processors_ready = 0;
static int smp_highest_cpu;
extern volatile unsigned long cpu_callin_map[NR_CPUS];
extern cpuinfo_sparc cpu_data[NR_CPUS];
extern unsigned char boot_cpu_id;
-extern int smp_activated;
-extern volatile int __cpu_number_map[NR_CPUS];
-extern volatile int __cpu_logical_map[NR_CPUS];
-extern volatile unsigned long ipi_count;
extern volatile int smp_process_available;
extern cpumask_t smp_commenced_mask;
@@ -144,6 +139,8 @@ void __init smp4d_callin(void)
spin_lock_irqsave(&sun4d_imsk_lock, flags);
cc_set_imsk(cc_get_imsk() & ~0x4000); /* Allow PIL 14 as well */
spin_unlock_irqrestore(&sun4d_imsk_lock, flags);
+ cpu_set(cpuid, cpu_online_map);
+
}
extern void init_IRQ(void);
@@ -160,51 +157,24 @@ extern unsigned long trapbase_cpu3[];
void __init smp4d_boot_cpus(void)
{
- int cpucount = 0;
- int i, mid;
-
- printk("Entering SMP Mode...\n");
-
if (boot_cpu_id)
current_set[0] = NULL;
-
- local_irq_enable();
- cpus_clear(cpu_present_map);
-
- /* XXX This whole thing has to go. See sparc64. */
- for (i = 0; !cpu_find_by_instance(i, NULL, &mid); i++)
- cpu_set(mid, cpu_present_map);
- SMP_PRINTK(("cpu_present_map %08lx\n", cpus_addr(cpu_present_map)[0]));
- for(i=0; i < NR_CPUS; i++)
- __cpu_number_map[i] = -1;
- for(i=0; i < NR_CPUS; i++)
- __cpu_logical_map[i] = -1;
- __cpu_number_map[boot_cpu_id] = 0;
- __cpu_logical_map[0] = boot_cpu_id;
- current_thread_info()->cpu = boot_cpu_id;
- smp_store_cpu_info(boot_cpu_id);
smp_setup_percpu_timer();
local_flush_cache_all();
- if (cpu_find_by_instance(1, NULL, NULL))
- return; /* Not an MP box. */
- SMP_PRINTK(("Iterating over CPUs\n"));
- for(i = 0; i < NR_CPUS; i++) {
- if(i == boot_cpu_id)
- continue;
-
- if (cpu_isset(i, cpu_present_map)) {
+}
+
+int smp4d_boot_one_cpu(int i)
+{
extern unsigned long sun4d_cpu_startup;
unsigned long *entry = &sun4d_cpu_startup;
struct task_struct *p;
int timeout;
- int no;
+ int cpu_node;
+ cpu_find_by_instance(i, &cpu_node,NULL);
/* Cook up an idler for this guy. */
p = fork_idle(i);
- cpucount++;
current_set[i] = task_thread_info(p);
- for (no = 0; !cpu_find_by_instance(no, NULL, &mid)
- && mid != i; no++) ;
/*
* Initialize the contexts table
@@ -216,9 +186,9 @@ void __init smp4d_boot_cpus(void)
smp_penguin_ctable.reg_size = 0;
/* whirrr, whirrr, whirrrrrrrrr... */
- SMP_PRINTK(("Starting CPU %d at %p task %d node %08x\n", i, entry, cpucount, cpu_data(no).prom_node));
+ SMP_PRINTK(("Starting CPU %d at %p \n", i, entry));
local_flush_cache_all();
- prom_startcpu(cpu_data(no).prom_node,
+ prom_startcpu(cpu_node,
&smp_penguin_ctable, 0, (char *)entry);
SMP_PRINTK(("prom_startcpu returned :)\n"));
@@ -230,39 +200,30 @@ void __init smp4d_boot_cpus(void)
udelay(200);
}
- if(cpu_callin_map[i]) {
- /* Another "Red Snapper". */
- __cpu_number_map[i] = cpucount;
- __cpu_logical_map[cpucount] = i;
- } else {
- cpucount--;
- printk("Processor %d is stuck.\n", i);
- }
- }
- if(!(cpu_callin_map[i])) {
- cpu_clear(i, cpu_present_map);
- __cpu_number_map[i] = -1;
- }
+ if (!(cpu_callin_map[i])) {
+ printk("Processor %d is stuck.\n", i);
+ return -ENODEV;
+
}
local_flush_cache_all();
- if(cpucount == 0) {
- printk("Error: only one Processor found.\n");
- cpu_present_map = cpumask_of_cpu(hard_smp4d_processor_id());
- } else {
- unsigned long bogosum = 0;
-
- for_each_present_cpu(i) {
- bogosum += cpu_data(i).udelay_val;
- smp_highest_cpu = i;
+ return 0;
+}
+
+void __init smp4d_smp_done(void)
+{
+ int i, first;
+ int *prev;
+
+ /* setup cpu list for irq rotation */
+ first = 0;
+ prev = &first;
+ for (i = 0; i < NR_CPUS; i++)
+ if (cpu_online(i)) {
+ *prev = i;
+ prev = &cpu_data(i).next;
}
- SMP_PRINTK(("Total of %d Processors activated (%lu.%02lu BogoMIPS).\n", cpucount + 1, bogosum/(500000/HZ), (bogosum/(5000/HZ))%100));
- printk("Total of %d Processors activated (%lu.%02lu BogoMIPS).\n",
- cpucount + 1,
- bogosum/(500000/HZ),
- (bogosum/(5000/HZ))%100);
- smp_activated = 1;
- smp_num_cpus = cpucount + 1;
- }
+ *prev = first;
+ local_flush_cache_all();
/* Free unneeded trap tables */
ClearPageReserved(virt_to_page(trapbase_cpu1));
@@ -334,7 +295,7 @@ void smp4d_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2,
register int i;
mask = cpumask_of_cpu(hard_smp4d_processor_id());
- cpus_andnot(mask, cpu_present_map, mask);
+ cpus_andnot(mask, cpu_online_map, mask);
for(i = 0; i <= high; i++) {
if (cpu_isset(i, mask)) {
ccall_info.processors_in[i] = 0;
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 3b32096134a..7d4a649138f 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -39,7 +39,6 @@ extern ctxd_t *srmmu_ctx_table_phys;
extern void calibrate_delay(void);
-extern volatile int smp_processors_ready;
extern volatile unsigned long cpu_callin_map[NR_CPUS];
extern unsigned char boot_cpu_id;
@@ -217,7 +216,6 @@ void __init smp4m_smp_done(void)
}
/* Ok, they are spinning and ready to go. */
- smp_processors_ready = 1;
}
/* At each hardware IRQ, we get this called to forward IRQ reception
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
index 0cdfc9d294b..a41c8a5c200 100644
--- a/arch/sparc/kernel/sys_sparc.c
+++ b/arch/sparc/kernel/sys_sparc.c
@@ -465,21 +465,21 @@ sys_rt_sigaction(int sig,
asmlinkage int sys_getdomainname(char __user *name, int len)
{
- int nlen;
- int err = -EFAULT;
+ int nlen, err;
+ if (len < 0 || len > __NEW_UTS_LEN)
+ return -EINVAL;
+
down_read(&uts_sem);
nlen = strlen(system_utsname.domainname) + 1;
-
if (nlen < len)
len = nlen;
- if (len > __NEW_UTS_LEN)
- goto done;
- if (copy_to_user(name, system_utsname.domainname, len))
- goto done;
- err = 0;
-done:
+
+ err = -EFAULT;
+ if (!copy_to_user(name, system_utsname.domainname, len))
+ err = 0;
+
up_read(&uts_sem);
return err;
}
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 04eb1eab6e3..845081b0126 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -225,6 +225,32 @@ static __inline__ int has_low_battery(void)
return (data1 == data2); /* Was the write blocked? */
}
+static void __init mostek_set_system_time(void)
+{
+ unsigned int year, mon, day, hour, min, sec;
+ struct mostek48t02 *mregs;
+
+ mregs = (struct mostek48t02 *)mstk48t02_regs;
+ if(!mregs) {
+ prom_printf("Something wrong, clock regs not mapped yet.\n");
+ prom_halt();
+ }
+ spin_lock_irq(&mostek_lock);
+ mregs->creg |= MSTK_CREG_READ;
+ sec = MSTK_REG_SEC(mregs);
+ min = MSTK_REG_MIN(mregs);
+ hour = MSTK_REG_HOUR(mregs);
+ day = MSTK_REG_DOM(mregs);
+ mon = MSTK_REG_MONTH(mregs);
+ year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
+ xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
+ xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
+ set_normalized_timespec(&wall_to_monotonic,
+ -xtime.tv_sec, -xtime.tv_nsec);
+ mregs->creg &= ~MSTK_CREG_READ;
+ spin_unlock_irq(&mostek_lock);
+}
+
/* Probe for the real time clock chip on Sun4 */
static __inline__ void sun4_clock_probe(void)
{
@@ -273,6 +299,7 @@ static __inline__ void sun4_clock_probe(void)
#endif
}
+#ifndef CONFIG_SUN4
static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
{
struct device_node *dp = op->node;
@@ -307,6 +334,8 @@ static int __devinit clock_probe(struct of_device *op, const struct of_device_id
if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
kick_start_clock();
+ mostek_set_system_time();
+
return 0;
}
@@ -325,56 +354,37 @@ static struct of_platform_driver clock_driver = {
/* Probe for the mostek real time clock chip. */
-static void clock_init(void)
+static int __init clock_init(void)
{
- of_register_driver(&clock_driver, &of_bus_type);
+ return of_register_driver(&clock_driver, &of_bus_type);
}
+/* Must be after subsys_initcall() so that busses are probed. Must
+ * be before device_initcall() because things like the RTC driver
+ * need to see the clock registers.
+ */
+fs_initcall(clock_init);
+#endif /* !CONFIG_SUN4 */
+
void __init sbus_time_init(void)
{
- unsigned int year, mon, day, hour, min, sec;
- struct mostek48t02 *mregs;
-
-#ifdef CONFIG_SUN4
- int temp;
- struct intersil *iregs;
-#endif
BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM);
btfixup();
if (ARCH_SUN4)
sun4_clock_probe();
- else
- clock_init();
sparc_init_timers(timer_interrupt);
#ifdef CONFIG_SUN4
if(idprom->id_machtype == (SM_SUN4 | SM_4_330)) {
-#endif
- mregs = (struct mostek48t02 *)mstk48t02_regs;
- if(!mregs) {
- prom_printf("Something wrong, clock regs not mapped yet.\n");
- prom_halt();
- }
- spin_lock_irq(&mostek_lock);
- mregs->creg |= MSTK_CREG_READ;
- sec = MSTK_REG_SEC(mregs);
- min = MSTK_REG_MIN(mregs);
- hour = MSTK_REG_HOUR(mregs);
- day = MSTK_REG_DOM(mregs);
- mon = MSTK_REG_MONTH(mregs);
- year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
- xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
- xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
- set_normalized_timespec(&wall_to_monotonic,
- -xtime.tv_sec, -xtime.tv_nsec);
- mregs->creg &= ~MSTK_CREG_READ;
- spin_unlock_irq(&mostek_lock);
-#ifdef CONFIG_SUN4
+ mostek_set_system_time();
} else if(idprom->id_machtype == (SM_SUN4 | SM_4_260) ) {
/* initialise the intersil on sun4 */
+ unsigned int year, mon, day, hour, min, sec;
+ int temp;
+ struct intersil *iregs;
iregs=intersil_clock;
if(!iregs) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 14:36:20 +0000