Module: xenomai-head
Branch: master
Commit: 009ca1858ae22001927f6b7fd9b442408467d15f
URL:
http://git.xenomai.org/?p=xenomai-head.git;a=commit;h=009ca1858ae22001927f6b7fd9b442408467d15f
Author: Philippe Gerum <r...@xenomai.org>
Date: Thu Jun 10 12:23:58 2010 +0200
hal: convert to vfile
Moved all vfiles to the nucleus.
---
include/asm-generic/hal.h | 40 +++-----
ksrc/arch/generic/hal.c | 222 +-------------------------------------------
ksrc/arch/generic/nmi.c | 99 ++++-----------------
3 files changed, 38 insertions(+), 323 deletions(-)
diff --git a/include/asm-generic/hal.h b/include/asm-generic/hal.h
index f90cafa..5ff7fb0 100644
--- a/include/asm-generic/hal.h
+++ b/include/asm-generic/hal.h
@@ -420,6 +420,13 @@ struct rthal_calibration_data {
unsigned long clock_freq;
};
+struct rthal_apc_desc {
+ void (*handler)(void *cookie);
+ void *cookie;
+ const char *name;
+ unsigned long hits[RTHAL_NR_CPUS];
+};
+
typedef int (*rthal_trap_handler_t)(unsigned trapno,
unsigned domid,
void *data);
@@ -438,7 +445,11 @@ extern volatile int rthal_sync_op;
extern rthal_trap_handler_t rthal_trap_handler;
-extern unsigned rthal_realtime_faults[RTHAL_NR_CPUS][RTHAL_NR_FAULTS];
+extern unsigned int rthal_realtime_faults[RTHAL_NR_CPUS][RTHAL_NR_FAULTS];
+
+extern unsigned long rthal_apc_map;
+
+extern struct rthal_apc_desc rthal_apc_table[RTHAL_NR_APCS];
extern int rthal_arch_init(void);
@@ -452,7 +463,7 @@ void rthal_critical_exit(unsigned long flags);
#ifdef CONFIG_XENO_HW_NMI_DEBUG_LATENCY
-extern unsigned rthal_maxlat_us;
+extern unsigned int rthal_maxlat_us;
extern unsigned long rthal_maxlat_tsc;
@@ -466,15 +477,11 @@ void rthal_nmi_arm(unsigned long delay);
void rthal_nmi_disarm(void);
-void rthal_nmi_proc_register(void);
-
-void rthal_nmi_proc_unregister(void);
+void rthal_nmi_set_maxlat(unsigned int maxlat_us);
#else /* !CONFIG_XENO_HW_NMI_DEBUG_LATENCY */
#define rthal_nmi_init(efn) do { } while(0)
#define rthal_nmi_release() do { } while(0)
-#define rthal_nmi_proc_register() do { } while(0)
-#define rthal_nmi_proc_unregister() do { } while(0)
#endif /* CONFIG_XENO_HW_NMI_DEBUG_LATENCY */
/* Public interface */
@@ -561,25 +568,8 @@ static inline int rthal_cpu_supported(int cpu)
}
#endif /* !CONFIG_SMP */
-#ifdef CONFIG_PROC_FS
-
-#include <linux/proc_fs.h>
-
-extern struct proc_dir_entry *rthal_proc_root;
-
-struct proc_dir_entry *rthal_add_proc_leaf(const char *name,
- read_proc_t rdproc,
- write_proc_t wrproc,
- void *data,
- struct proc_dir_entry *parent);
-
-struct proc_dir_entry *rthal_add_proc_seq(const char *name,
- struct file_operations *fops,
- size_t size,
- struct proc_dir_entry *parent);
-#endif /* CONFIG_PROC_FS */
-
#ifdef CONFIG_IPIPE_TRACE
+
#include <linux/ipipe_trace.h>
static inline int rthal_trace_max_begin(unsigned long v)
diff --git a/ksrc/arch/generic/hal.c b/ksrc/arch/generic/hal.c
index 8a5ec39..6239b0f 100644
--- a/ksrc/arch/generic/hal.c
+++ b/ksrc/arch/generic/hal.c
@@ -42,12 +42,7 @@
#endif
#include <asm/system.h>
#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
#include <asm/xenomai/hal.h>
-#ifdef CONFIG_PROC_FS
-#include <linux/proc_fs.h>
-#endif /* CONFIG_PROC_FS */
#include <stdarg.h>
MODULE_LICENSE("GPL");
@@ -69,21 +64,10 @@ cpumask_t rthal_supported_cpus;
EXPORT_SYMBOL(rthal_supported_cpus);
#endif /* CONFIG_SMP */
-static struct {
-
- void (*handler) (void *cookie);
- void *cookie;
- const char *name;
- unsigned long hits[RTHAL_NR_CPUS];
-
-} rthal_apc_table[RTHAL_NR_APCS];
-
static int rthal_init_done;
static unsigned rthal_apc_virq;
-static unsigned long rthal_apc_map;
-
static unsigned long rthal_apc_pending[RTHAL_NR_CPUS];
static rthal_spinlock_t rthal_apc_lock = RTHAL_SPIN_LOCK_UNLOCKED;
@@ -98,6 +82,10 @@ rthal_trap_handler_t rthal_trap_handler;
unsigned rthal_realtime_faults[RTHAL_NR_CPUS][RTHAL_NR_FAULTS];
+unsigned long rthal_apc_map;
+
+struct rthal_apc_desc rthal_apc_table[RTHAL_NR_APCS];
+
volatile int rthal_sync_op;
unsigned long rthal_critical_enter(void (*synch) (void))
@@ -615,190 +603,6 @@ int rthal_apc_schedule(int apc)
return 0;
}
-#ifdef CONFIG_PROC_FS
-
-struct proc_dir_entry *rthal_proc_root;
-
-static int hal_read_proc(char *page,
- char **start,
- off_t off, int count, int *eof, void *data)
-{
- int len, major, minor, patchlevel;
-
- major = IPIPE_MAJOR_NUMBER;
- minor = IPIPE_MINOR_NUMBER;
- patchlevel = IPIPE_PATCH_NUMBER;
-
- len = sprintf(page, "%d.%d-%.2d\n", major, minor, patchlevel);
- len -= off;
- if (len <= off + count)
- *eof = 1;
- *start = page + off;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
-
- return len;
-}
-
-static int faults_read_proc(char *page,
- char **start,
- off_t off, int count, int *eof, void *data)
-{
- int len = 0, cpu, trap;
- char *p = page;
-
- p += sprintf(p, "TRAP ");
-
- for_each_online_cpu(cpu) {
- p += sprintf(p, " CPU%d", cpu);
- }
-
- for (trap = 0; rthal_fault_labels[trap] != NULL; trap++) {
-
- if (!*rthal_fault_labels[trap])
- continue;
-
- p += sprintf(p, "\n%3d: ", trap);
-
- for_each_online_cpu(cpu) {
- p += sprintf(p, "%12u", rthal_realtime_faults[cpu][trap]);
- }
-
- p += sprintf(p, " (%s)", rthal_fault_labels[trap]);
- }
-
- p += sprintf(p, "\n");
-
- len = p - page - off;
- if (len <= off + count)
- *eof = 1;
- *start = page + off;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
-
- return len;
-}
-
-static int apc_read_proc(char *page,
- char **start,
- off_t off, int count, int *eof, void *data)
-{
- int len = 0, cpu, apc;
- char *p = page;
-
- p += sprintf(p, "APC ");
-
- for_each_online_cpu(cpu) {
- p += sprintf(p, " CPU%d", cpu);
- }
-
- for (apc = 0; apc < BITS_PER_LONG; apc++) {
- if (!test_bit(apc, &rthal_apc_map))
- continue; /* Not hooked. */
-
- p += sprintf(p, "\n%3d: ", apc);
-
- for_each_online_cpu(cpu) {
- p += sprintf(p, "%12lu", rthal_apc_table[apc].hits[cpu]);
- }
-
- if (rthal_apc_table[apc].name)
- p += sprintf(p, " (%s)", rthal_apc_table[apc].name);
- }
-
- p += sprintf(p, "\n");
-
- len = p - page - off;
- if (len <= off + count)
- *eof = 1;
- *start = page + off;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
-
- return len;
-}
-
-struct proc_dir_entry *rthal_add_proc_leaf(const char *name,
- read_proc_t rdproc,
- write_proc_t wrproc,
- void *data,
- struct proc_dir_entry *parent)
-{
- int mode = wrproc ? 0644 : 0444;
- struct proc_dir_entry *entry;
-
- entry = create_proc_entry(name, mode, parent);
- if (entry == NULL)
- return NULL;
-
- entry->nlink = 1;
- entry->data = data;
- entry->read_proc = rdproc;
- entry->write_proc = wrproc;
- wrap_proc_dir_entry_owner(entry);
-
- return entry;
-}
-EXPORT_SYMBOL_GPL(rthal_add_proc_leaf);
-
-struct proc_dir_entry *rthal_add_proc_seq(const char *name,
- struct file_operations *fops,
- size_t size,
- struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *entry;
-
- entry = create_proc_entry(name, 0, parent);
- if (entry == NULL)
- return NULL;
-
- entry->proc_fops = fops;
- wrap_proc_dir_entry_owner(entry);
-
- if (size)
- entry->size = size;
-
- return entry;
-}
-EXPORT_SYMBOL_GPL(rthal_add_proc_seq);
-
-static int rthal_proc_register(void)
-{
- rthal_proc_root = create_proc_entry("xenomai", S_IFDIR, 0);
- if (rthal_proc_root == NULL) {
- printk(KERN_ERR "Xenomai: Unable to initialize
/proc/xenomai.\n");
- return -1;
- }
-
- wrap_proc_dir_entry_owner(rthal_proc_root);
-
- rthal_add_proc_leaf("hal", &hal_read_proc, NULL, NULL, rthal_proc_root);
- rthal_add_proc_leaf("faults",
- &faults_read_proc, NULL, NULL, rthal_proc_root);
- rthal_add_proc_leaf("apc", &apc_read_proc, NULL, NULL, rthal_proc_root);
-
- rthal_nmi_proc_register();
-
- return 0;
-}
-
-static void rthal_proc_unregister(void)
-{
- rthal_nmi_proc_unregister();
- remove_proc_entry("hal", rthal_proc_root);
- remove_proc_entry("faults", rthal_proc_root);
- remove_proc_entry("apc", rthal_proc_root);
- remove_proc_entry("xenomai", NULL);
-}
-
-#endif /* CONFIG_PROC_FS */
-
int rthal_init(void)
{
int err;
@@ -867,10 +671,6 @@ int rthal_init(void)
}
#endif /* CONFIG_PREEMPT_RT */
-#ifdef CONFIG_PROC_FS
- rthal_proc_register();
-#endif /* CONFIG_PROC_FS */
-
err = rthal_register_domain(&rthal_domain,
"Xenomai",
RTHAL_DOMAIN_ID,
@@ -889,15 +689,12 @@ int rthal_init(void)
#endif
printk(KERN_ERR "Xenomai: Domain registration failed (%d).\n",
err);
- goto out_proc_unregister;
+ goto fail;
}
return 0;
- out_proc_unregister:
-#ifdef CONFIG_PROC_FS
- rthal_proc_unregister();
-#endif
+ fail:
#ifdef CONFIG_PREEMPT_RT
out_kthread_stop:
{
@@ -923,10 +720,6 @@ int rthal_init(void)
void rthal_exit(void)
{
-#ifdef CONFIG_PROC_FS
- rthal_proc_unregister();
-#endif /* CONFIG_PROC_FS */
-
if (rthal_apc_virq) {
rthal_virtualize_irq(rthal_current_domain, rthal_apc_virq, NULL, NULL,
NULL, 0);
@@ -1123,9 +916,6 @@ EXPORT_SYMBOL(rthal_critical_exit);
EXPORT_SYMBOL(rthal_domain);
EXPORT_SYMBOL(rthal_tunables);
-#ifdef CONFIG_PROC_FS
-EXPORT_SYMBOL(rthal_proc_root);
-#endif /* CONFIG_PROC_FS */
EXPORT_SYMBOL(rthal_init);
EXPORT_SYMBOL(rthal_exit);
diff --git a/ksrc/arch/generic/nmi.c b/ksrc/arch/generic/nmi.c
index 842a0a5..ff86ce9 100644
--- a/ksrc/arch/generic/nmi.c
+++ b/ksrc/arch/generic/nmi.c
@@ -30,97 +30,32 @@
*
*...@{*/
-#include <linux/version.h>
#include <linux/module.h>
-#include <asm/system.h>
-#include <asm/unistd.h>
-#include <asm/uaccess.h>
#include <asm/xenomai/hal.h>
-#ifdef CONFIG_PROC_FS
-#include <linux/proc_fs.h>
-#endif /* CONFIG_PROC_FS */
-unsigned long rthal_maxlat_tsc;
-
-unsigned rthal_maxlat_us = CONFIG_XENO_HW_NMI_DEBUG_LATENCY_MAX;
-
-void rthal_nmi_init(void (*emergency) (struct pt_regs *))
-{
- rthal_maxlat_tsc = rthal_llimd(rthal_maxlat_us * 1000ULL,
- RTHAL_NMICLK_FREQ, 1000000000);
- rthal_nmi_release();
-
- if (rthal_nmi_request(emergency))
- printk("Xenomai: NMI watchdog not available.\n");
- else
- printk("Xenomai: NMI watchdog started (threshold=%u us).\n",
- rthal_maxlat_us);
-}
-
-#ifdef CONFIG_PROC_FS
-
-#include <linux/ctype.h>
-
-static int maxlat_read_proc(char *page,
- char **start,
- off_t off, int count, int *eof, void *data)
-{
- int len;
-
- len = sprintf(page, "%u\n", rthal_maxlat_us);
- len -= off;
- if (len <= off + count)
- *eof = 1;
- *start = page + off;
- if (len > count)
- len = count;
- if (len < 0)
- len = 0;
-
- return len;
-}
-
-static int maxlat_write_proc(struct file *file,
- const char __user * buffer,
- unsigned long count, void *data)
-{
- char *end, buf[16];
- int val;
- int n;
-
- n = (count > sizeof(buf) - 1) ? sizeof(buf) - 1 : count;
-
- if (copy_from_user(buf, buffer, n))
- return -EFAULT;
-
- buf[n] = '\0';
- val = simple_strtol(buf, &end, 0);
-
- if (((*end != '\0') && !isspace(*end)) || (val < 0))
- return -EINVAL;
-
- rthal_maxlat_us = val;
- rthal_maxlat_tsc = rthal_llimd(rthal_maxlat_us * 1000ULL,
- RTHAL_NMICLK_FREQ, 1000000000);
+unsigned int rthal_maxlat_us;
+EXPORT_SYMBOL(rthal_maxlat_tsc);
- return count;
-}
+unsigned long rthal_maxlat_tsc;
+EXPORT_SYMBOL(rthal_maxlat_us);
-void rthal_nmi_proc_register(void)
+void rthal_nmi_set_maxlat(unsigned int maxlat_us)
{
- rthal_add_proc_leaf("nmi_maxlat",
- &maxlat_read_proc,
- &maxlat_write_proc, NULL, rthal_proc_root);
+ rthal_maxlat_us = maxlat_us;
+ rthal_maxlat_tsc = rthal_llimd(maxlat_us * 1000ULL,
+ RTHAL_NMICLK_FREQ, 1000000000);
}
-void rthal_nmi_proc_unregister(void)
+void __init rthal_nmi_init(void (*emergency) (struct pt_regs *))
{
- remove_proc_entry("nmi_maxlat", rthal_proc_root);
+ rthal_nmi_set_maxlat(CONFIG_XENO_HW_NMI_DEBUG_LATENCY_MAX);
+ rthal_nmi_release();
+
+ if (rthal_nmi_request(emergency))
+ printk("Xenomai: NMI watchdog not available.\n");
+ else
+ printk("Xenomai: NMI watchdog started (threshold=%u us).\n",
+ rthal_maxlat_us);
}
-#endif /* CONFIG_PROC_FS */
-
/*...@}*/
-
-EXPORT_SYMBOL(rthal_maxlat_tsc);
-EXPORT_SYMBOL(rthal_maxlat_us);
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