avr32: remove support for AVR32 architecture

[sfrench/cifs-2.6.git] / arch / avr32 / kernel / ocd.c

diff --git a/arch/avr32/kernel/ocd.c b/arch/avr32/kernel/ocd.c
deleted file mode 100644 (file)
index 1b0245d..0000000
--- a/arch/avr32/kernel/ocd.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Copyright (C) 2007 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-
-#include <asm/ocd.h>
-
-static long ocd_count;
-static spinlock_t ocd_lock;
-
-/**
- * ocd_enable - enable on-chip debugging
- * @child: task to be debugged
- *
- * If @child is non-NULL, ocd_enable() first checks if debugging has
- * already been enabled for @child, and if it has, does nothing.
- *
- * If @child is NULL (e.g. when debugging the kernel), or debugging
- * has not already been enabled for it, ocd_enable() increments the
- * reference count and enables the debugging hardware.
- */
-void ocd_enable(struct task_struct *child)
-{
-       u32 dc;
-
-       if (child)
-               pr_debug("ocd_enable: child=%s [%u]\n",
-                               child->comm, child->pid);
-       else
-               pr_debug("ocd_enable (no child)\n");
-
-       if (!child || !test_and_set_tsk_thread_flag(child, TIF_DEBUG)) {
-               spin_lock(&ocd_lock);
-               ocd_count++;
-               dc = ocd_read(DC);
-               dc |= (1 << OCD_DC_MM_BIT) | (1 << OCD_DC_DBE_BIT);
-               ocd_write(DC, dc);
-               spin_unlock(&ocd_lock);
-       }
-}
-
-/**
- * ocd_disable - disable on-chip debugging
- * @child: task that was being debugged, but isn't anymore
- *
- * If @child is non-NULL, ocd_disable() checks if debugging is enabled
- * for @child, and if it isn't, does nothing.
- *
- * If @child is NULL (e.g. when debugging the kernel), or debugging is
- * enabled, ocd_disable() decrements the reference count, and if it
- * reaches zero, disables the debugging hardware.
- */
-void ocd_disable(struct task_struct *child)
-{
-       u32 dc;
-
-       if (!child)
-               pr_debug("ocd_disable (no child)\n");
-       else if (test_tsk_thread_flag(child, TIF_DEBUG))
-               pr_debug("ocd_disable: child=%s [%u]\n",
-                               child->comm, child->pid);
-
-       if (!child || test_and_clear_tsk_thread_flag(child, TIF_DEBUG)) {
-               spin_lock(&ocd_lock);
-               ocd_count--;
-
-               WARN_ON(ocd_count < 0);
-
-               if (ocd_count <= 0) {
-                       dc = ocd_read(DC);
-                       dc &= ~((1 << OCD_DC_MM_BIT) | (1 << OCD_DC_DBE_BIT));
-                       ocd_write(DC, dc);
-               }
-               spin_unlock(&ocd_lock);
-       }
-}
-
-#ifdef CONFIG_DEBUG_FS
-#include <linux/debugfs.h>
-#include <linux/module.h>
-
-static struct dentry *ocd_debugfs_root;
-static struct dentry *ocd_debugfs_DC;
-static struct dentry *ocd_debugfs_DS;
-static struct dentry *ocd_debugfs_count;
-
-static int ocd_DC_get(void *data, u64 *val)
-{
-       *val = ocd_read(DC);
-       return 0;
-}
-static int ocd_DC_set(void *data, u64 val)
-{
-       ocd_write(DC, val);
-       return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(fops_DC, ocd_DC_get, ocd_DC_set, "0x%08llx\n");
-
-static int ocd_DS_get(void *data, u64 *val)
-{
-       *val = ocd_read(DS);
-       return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(fops_DS, ocd_DS_get, NULL, "0x%08llx\n");
-
-static int ocd_count_get(void *data, u64 *val)
-{
-       *val = ocd_count;
-       return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(fops_count, ocd_count_get, NULL, "%lld\n");
-
-static void ocd_debugfs_init(void)
-{
-       struct dentry *root;
-
-       root = debugfs_create_dir("ocd", NULL);
-       if (IS_ERR(root) || !root)
-               goto err_root;
-       ocd_debugfs_root = root;
-
-       ocd_debugfs_DC = debugfs_create_file("DC", S_IRUSR | S_IWUSR,
-                               root, NULL, &fops_DC);
-       if (!ocd_debugfs_DC)
-               goto err_DC;
-
-       ocd_debugfs_DS = debugfs_create_file("DS", S_IRUSR, root,
-                               NULL, &fops_DS);
-       if (!ocd_debugfs_DS)
-               goto err_DS;
-
-       ocd_debugfs_count = debugfs_create_file("count", S_IRUSR, root,
-                               NULL, &fops_count);
-       if (!ocd_debugfs_count)
-               goto err_count;
-
-       return;
-
-err_count:
-       debugfs_remove(ocd_debugfs_DS);
-err_DS:
-       debugfs_remove(ocd_debugfs_DC);
-err_DC:
-       debugfs_remove(ocd_debugfs_root);
-err_root:
-       printk(KERN_WARNING "OCD: Failed to create debugfs entries\n");
-}
-#else
-static inline void ocd_debugfs_init(void)
-{
-
-}
-#endif
-
-static int __init ocd_init(void)
-{
-       spin_lock_init(&ocd_lock);
-       ocd_debugfs_init();
-       return 0;
-}
-arch_initcall(ocd_init);