Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
  parisc: Fixup last users of irq_chip->typename
  parisc: convert /proc/pdc/{lcd,led} to seq_file
  parisc: Convert BUG() to use unreachable()
  parisc: Replace old style lock init in smp.c
  parisc: use sort() instead of home-made implementation (v2)
  parisc: add CALLER_ADDR{0-6} macros
  parisc: remove unused IRQSTAT_SIRQ_PEND and IRQSTAT_SZ defines
  parisc: remove duplicated #include
This commit is contained in:
Linus Torvalds 2009-12-16 10:12:07 -08:00
commit b2adf0cbec
13 changed files with 95 additions and 61 deletions

View file

@ -32,14 +32,14 @@
"\t.popsection" \
: : "i" (__FILE__), "i" (__LINE__), \
"i" (0), "i" (sizeof(struct bug_entry)) ); \
for(;;) ; \
unreachable(); \
} while(0)
#else
#define BUG() \
do { \
asm volatile(PARISC_BUG_BREAK_ASM : : ); \
for(;;) ; \
unreachable(); \
} while(0)
#endif

View file

@ -20,6 +20,20 @@ struct ftrace_ret_stack {
* Defined in entry.S
*/
extern void return_to_handler(void);
extern unsigned long return_address(unsigned int);
#define HAVE_ARCH_CALLER_ADDR
#define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
#define CALLER_ADDR1 return_address(1)
#define CALLER_ADDR2 return_address(2)
#define CALLER_ADDR3 return_address(3)
#define CALLER_ADDR4 return_address(4)
#define CALLER_ADDR5 return_address(5)
#define CALLER_ADDR6 return_address(6)
#endif /* __ASSEMBLY__ */
#endif /* _ASM_PARISC_FTRACE_H */

View file

@ -244,9 +244,6 @@ int main(void)
DEFINE(THREAD_SZ, sizeof(struct thread_info));
DEFINE(THREAD_SZ_ALGN, align(sizeof(struct thread_info), 64));
BLANK();
DEFINE(IRQSTAT_SIRQ_PEND, offsetof(irq_cpustat_t, __softirq_pending));
DEFINE(IRQSTAT_SZ, sizeof(irq_cpustat_t));
BLANK();
DEFINE(ICACHE_BASE, offsetof(struct pdc_cache_info, ic_base));
DEFINE(ICACHE_STRIDE, offsetof(struct pdc_cache_info, ic_stride));
DEFINE(ICACHE_COUNT, offsetof(struct pdc_cache_info, ic_count));

View file

@ -145,7 +145,7 @@ static int cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
#endif
static struct irq_chip cpu_interrupt_type = {
.typename = "CPU",
.name = "CPU",
.startup = cpu_startup_irq,
.shutdown = cpu_disable_irq,
.enable = cpu_enable_irq,
@ -192,7 +192,7 @@ int show_interrupts(struct seq_file *p, void *v)
seq_printf(p, "%10u ", kstat_irqs(i));
#endif
seq_printf(p, " %14s", irq_desc[i].chip->typename);
seq_printf(p, " %14s", irq_desc[i].chip->name);
#ifndef PARISC_IRQ_CR16_COUNTS
seq_printf(p, " %s", action->name);

View file

@ -26,7 +26,6 @@
#include <linux/stddef.h>
#include <linux/compat.h>
#include <linux/elf.h>
#include <linux/tracehook.h>
#include <asm/ucontext.h>
#include <asm/rt_sigframe.h>
#include <asm/uaccess.h>

View file

@ -60,8 +60,6 @@ static int smp_debug_lvl = 0;
#define smp_debug(lvl, ...) do { } while(0)
#endif /* DEBUG_SMP */
DEFINE_SPINLOCK(smp_lock);
volatile struct task_struct *smp_init_current_idle_task;
/* track which CPU is booting */
@ -69,7 +67,7 @@ static volatile int cpu_now_booting __cpuinitdata;
static int parisc_max_cpus __cpuinitdata = 1;
DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED;
static DEFINE_PER_CPU(spinlock_t, ipi_lock);
enum ipi_message_type {
IPI_NOP=0,
@ -438,6 +436,11 @@ void __init smp_prepare_boot_cpu(void)
*/
void __init smp_prepare_cpus(unsigned int max_cpus)
{
int cpu;
for_each_possible_cpu(cpu)
spin_lock_init(&per_cpu(ipi_lock, cpu));
init_cpu_present(cpumask_of(0));
parisc_max_cpus = max_cpus;

View file

@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/kallsyms.h>
#include <linux/sort.h>
#include <asm/uaccess.h>
#include <asm/assembly.h>
@ -115,24 +116,18 @@ unwind_table_init(struct unwind_table *table, const char *name,
}
}
static int cmp_unwind_table_entry(const void *a, const void *b)
{
return ((const struct unwind_table_entry *)a)->region_start
- ((const struct unwind_table_entry *)b)->region_start;
}
static void
unwind_table_sort(struct unwind_table_entry *start,
struct unwind_table_entry *finish)
{
struct unwind_table_entry el, *p, *q;
for (p = start + 1; p < finish; ++p) {
if (p[0].region_start < p[-1].region_start) {
el = *p;
q = p;
do {
q[0] = q[-1];
--q;
} while (q > start &&
el.region_start < q[-1].region_start);
*q = el;
}
}
sort(start, finish - start, sizeof(struct unwind_table_entry),
cmp_unwind_table_entry, NULL);
}
struct unwind_table *
@ -417,3 +412,30 @@ int unwind_to_user(struct unwind_frame_info *info)
return ret;
}
unsigned long return_address(unsigned int level)
{
struct unwind_frame_info info;
struct pt_regs r;
unsigned long sp;
/* initialize unwind info */
asm volatile ("copy %%r30, %0" : "=r"(sp));
memset(&r, 0, sizeof(struct pt_regs));
r.iaoq[0] = (unsigned long) current_text_addr();
r.gr[2] = (unsigned long) __builtin_return_address(0);
r.gr[30] = sp;
unwind_frame_init(&info, current, &r);
/* unwind stack */
++level;
do {
if (unwind_once(&info) < 0 || info.ip == 0)
return 0;
if (!__kernel_text_address(info.ip)) {
return 0;
}
} while (info.ip && level--);
return info.ip;
}

View file

@ -354,7 +354,7 @@ static unsigned int dino_startup_irq(unsigned int irq)
}
static struct irq_chip dino_interrupt_type = {
.typename = "GSC-PCI",
.name = "GSC-PCI",
.startup = dino_startup_irq,
.shutdown = dino_disable_irq,
.enable = dino_enable_irq,

View file

@ -189,7 +189,7 @@ static unsigned int eisa_startup_irq(unsigned int irq)
}
static struct irq_chip eisa_interrupt_type = {
.typename = "EISA",
.name = "EISA",
.startup = eisa_startup_irq,
.shutdown = eisa_disable_irq,
.enable = eisa_enable_irq,

View file

@ -149,7 +149,7 @@ static unsigned int gsc_asic_startup_irq(unsigned int irq)
}
static struct irq_chip gsc_asic_interrupt_type = {
.typename = "GSC-ASIC",
.name = "GSC-ASIC",
.startup = gsc_asic_startup_irq,
.shutdown = gsc_asic_disable_irq,
.enable = gsc_asic_enable_irq,

View file

@ -730,7 +730,7 @@ static int iosapic_set_affinity_irq(unsigned int irq,
#endif
static struct irq_chip iosapic_interrupt_type = {
.typename = "IO-SAPIC-level",
.name = "IO-SAPIC-level",
.startup = iosapic_startup_irq,
.shutdown = iosapic_disable_irq,
.enable = iosapic_enable_irq,

View file

@ -38,6 +38,7 @@
#include <linux/kernel_stat.h>
#include <linux/reboot.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/ctype.h>
#include <linux/blkdev.h>
#include <linux/workqueue.h>
@ -147,41 +148,34 @@ device_initcall(start_task);
static void (*led_func_ptr) (unsigned char) __read_mostly;
#ifdef CONFIG_PROC_FS
static int led_proc_read(char *page, char **start, off_t off, int count,
int *eof, void *data)
static int led_proc_show(struct seq_file *m, void *v)
{
char *out = page;
int len;
switch ((long)data)
switch ((long)m->private)
{
case LED_NOLCD:
out += sprintf(out, "Heartbeat: %d\n", led_heartbeat);
out += sprintf(out, "Disk IO: %d\n", led_diskio);
out += sprintf(out, "LAN Rx/Tx: %d\n", led_lanrxtx);
seq_printf(m, "Heartbeat: %d\n", led_heartbeat);
seq_printf(m, "Disk IO: %d\n", led_diskio);
seq_printf(m, "LAN Rx/Tx: %d\n", led_lanrxtx);
break;
case LED_HASLCD:
out += sprintf(out, "%s\n", lcd_text);
seq_printf(m, "%s\n", lcd_text);
break;
default:
*eof = 1;
return 0;
}
len = out - page - off;
if (len < count) {
*eof = 1;
if (len <= 0) return 0;
} else {
len = count;
}
*start = page + off;
return len;
return 0;
}
static int led_proc_write(struct file *file, const char *buf,
unsigned long count, void *data)
static int led_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, led_proc_show, PDE(inode)->data);
}
static ssize_t led_proc_write(struct file *file, const char *buf,
size_t count, loff_t *pos)
{
void *data = PDE(file->f_path.dentry->d_inode)->data;
char *cur, lbuf[count + 1];
int d;
@ -234,6 +228,15 @@ parse_error:
return -EINVAL;
}
static const struct file_operations led_proc_fops = {
.owner = THIS_MODULE,
.open = led_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.write = led_proc_write,
};
static int __init led_create_procfs(void)
{
struct proc_dir_entry *proc_pdc_root = NULL;
@ -243,19 +246,15 @@ static int __init led_create_procfs(void)
proc_pdc_root = proc_mkdir("pdc", 0);
if (!proc_pdc_root) return -1;
ent = create_proc_entry("led", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
ent = proc_create_data("led", S_IRUGO|S_IWUSR, proc_pdc_root,
&led_proc_fops, (void *)LED_NOLCD); /* LED */
if (!ent) return -1;
ent->data = (void *)LED_NOLCD; /* LED */
ent->read_proc = led_proc_read;
ent->write_proc = led_proc_write;
if (led_type == LED_HASLCD)
{
ent = create_proc_entry("lcd", S_IFREG|S_IRUGO|S_IWUSR, proc_pdc_root);
ent = proc_create_data("lcd", S_IRUGO|S_IWUSR, proc_pdc_root,
&led_proc_fops, (void *)LED_HASLCD); /* LCD */
if (!ent) return -1;
ent->data = (void *)LED_HASLCD; /* LCD */
ent->read_proc = led_proc_read;
ent->write_proc = led_proc_write;
}
return 0;

View file

@ -326,7 +326,7 @@ static unsigned int superio_startup_irq(unsigned int irq)
}
static struct irq_chip superio_interrupt_type = {
.typename = SUPERIO,
.name = SUPERIO,
.startup = superio_startup_irq,
.shutdown = superio_disable_irq,
.enable = superio_enable_irq,