1 files changed, 0 insertions, 297 deletions
diff --git a/arch/ia64/kernel/perfmon_default_smpl.c b/arch/ia64/kernel/perfmon_default_smpl.c
deleted file mode 100644
index a40c56020fc5..000000000000
--- a/arch/ia64/kernel/perfmon_default_smpl.c
+++ /dev/null
@@ -1,297 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2002-2003 Hewlett-Packard Co
- *               Stephane Eranian <eranian@hpl.hp.com>
- *
- * This file implements the default sampling buffer format
- * for the Linux/ia64 perfmon-2 subsystem.
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <asm/delay.h>
-#include <linux/smp.h>
-
-#include <asm/perfmon.h>
-#include <asm/perfmon_default_smpl.h>
-
-MODULE_AUTHOR("Stephane Eranian <eranian@hpl.hp.com>");
-MODULE_DESCRIPTION("perfmon default sampling format");
-MODULE_LICENSE("GPL");
-
-#define DEFAULT_DEBUG 1
-
-#ifdef DEFAULT_DEBUG
-#define DPRINT(a) \
-	do { \
-		if (unlikely(pfm_sysctl.debug >0)) { printk("%s.%d: CPU%d ", __func__, __LINE__, smp_processor_id()); printk a; } \
-	} while (0)
-
-#define DPRINT_ovfl(a) \
-	do { \
-		if (unlikely(pfm_sysctl.debug > 0 && pfm_sysctl.debug_ovfl >0)) { printk("%s.%d: CPU%d ", __func__, __LINE__, smp_processor_id()); printk a; } \
-	} while (0)
-
-#else
-#define DPRINT(a)
-#define DPRINT_ovfl(a)
-#endif
-
-static int
-default_validate(struct task_struct *task, unsigned int flags, int cpu, void *data)
-{
-	pfm_default_smpl_arg_t *arg = (pfm_default_smpl_arg_t*)data;
-	int ret = 0;
-
-	if (data == NULL) {
-		DPRINT(("[%d] no argument passed\n", task_pid_nr(task)));
-		return -EINVAL;
-	}
-
-	DPRINT(("[%d] validate flags=0x%x CPU%d\n", task_pid_nr(task), flags, cpu));
-
-	/*
-	 * must hold at least the buffer header + one minimally sized entry
-	 */
-	if (arg->buf_size < PFM_DEFAULT_SMPL_MIN_BUF_SIZE) return -EINVAL;
-
-	DPRINT(("buf_size=%lu\n", arg->buf_size));
-
-	return ret;
-}
-
-static int
-default_get_size(struct task_struct *task, unsigned int flags, int cpu, void *data, unsigned long *size)
-{
-	pfm_default_smpl_arg_t *arg = (pfm_default_smpl_arg_t *)data;
-
-	/*
-	 * size has been validated in default_validate
-	 */
-	*size = arg->buf_size;
-
-	return 0;
-}
-
-static int
-default_init(struct task_struct *task, void *buf, unsigned int flags, int cpu, void *data)
-{
-	pfm_default_smpl_hdr_t *hdr;
-	pfm_default_smpl_arg_t *arg = (pfm_default_smpl_arg_t *)data;
-
-	hdr = (pfm_default_smpl_hdr_t *)buf;
-
-	hdr->hdr_version      = PFM_DEFAULT_SMPL_VERSION;
-	hdr->hdr_buf_size     = arg->buf_size;
-	hdr->hdr_cur_offs     = sizeof(*hdr);
-	hdr->hdr_overflows    = 0UL;
-	hdr->hdr_count        = 0UL;
-
-	DPRINT(("[%d] buffer=%p buf_size=%lu hdr_size=%lu hdr_version=%u cur_offs=%lu\n",
-		task_pid_nr(task),
-		buf,
-		hdr->hdr_buf_size,
-		sizeof(*hdr),
-		hdr->hdr_version,
-		hdr->hdr_cur_offs));
-
-	return 0;
-}
-
-static int
-default_handler(struct task_struct *task, void *buf, pfm_ovfl_arg_t *arg, struct pt_regs *regs, unsigned long stamp)
-{
-	pfm_default_smpl_hdr_t *hdr;
-	pfm_default_smpl_entry_t *ent;
-	void *cur, *last;
-	unsigned long *e, entry_size;
-	unsigned int npmds, i;
-	unsigned char ovfl_pmd;
-	unsigned char ovfl_notify;
-
-	if (unlikely(buf == NULL || arg == NULL|| regs == NULL || task == NULL)) {
-		DPRINT(("[%d] invalid arguments buf=%p arg=%p\n", task->pid, buf, arg));
-		return -EINVAL;
-	}
-
-	hdr         = (pfm_default_smpl_hdr_t *)buf;
-	cur         = buf+hdr->hdr_cur_offs;
-	last        = buf+hdr->hdr_buf_size;
-	ovfl_pmd    = arg->ovfl_pmd;
-	ovfl_notify = arg->ovfl_notify;
-
-	/*
-	 * precheck for sanity
-	 */
-	if ((last - cur) < PFM_DEFAULT_MAX_ENTRY_SIZE) goto full;
-
-	npmds = hweight64(arg->smpl_pmds[0]);
-
-	ent = (pfm_default_smpl_entry_t *)cur;
-
-	prefetch(arg->smpl_pmds_values);
-
-	entry_size = sizeof(*ent) + (npmds << 3);
-
-	/* position for first pmd */
-	e = (unsigned long *)(ent+1);
-
-	hdr->hdr_count++;
-
-	DPRINT_ovfl(("[%d] count=%lu cur=%p last=%p free_bytes=%lu ovfl_pmd=%d ovfl_notify=%d npmds=%u\n",
-			task->pid,
-			hdr->hdr_count,
-			cur, last,
-			last-cur,
-			ovfl_pmd,
-			ovfl_notify, npmds));
-
-	/*
-	 * current = task running at the time of the overflow.
-	 *
-	 * per-task mode:
-	 * 	- this is usually the task being monitored.
-	 * 	  Under certain conditions, it might be a different task
-	 *
-	 * system-wide:
-	 * 	- this is not necessarily the task controlling the session
-	 */
-	ent->pid            = current->pid;
-	ent->ovfl_pmd  	    = ovfl_pmd;
-	ent->last_reset_val = arg->pmd_last_reset; //pmd[0].reg_last_reset_val;
-
-	/*
-	 * where did the fault happen (includes slot number)
-	 */
-	ent->ip = regs->cr_iip | ((regs->cr_ipsr >> 41) & 0x3);
-
-	ent->tstamp    = stamp;
-	ent->cpu       = smp_processor_id();
-	ent->set       = arg->active_set;
-	ent->tgid      = current->tgid;
-
-	/*
-	 * selectively store PMDs in increasing index number
-	 */
-	if (npmds) {
-		unsigned long *val = arg->smpl_pmds_values;
-		for(i=0; i < npmds; i++) {
-			*e++ = *val++;
-		}
-	}
-
-	/*
-	 * update position for next entry
-	 */
-	hdr->hdr_cur_offs += entry_size;
-	cur               += entry_size;
-
-	/*
-	 * post check to avoid losing the last sample
-	 */
-	if ((last - cur) < PFM_DEFAULT_MAX_ENTRY_SIZE) goto full;
-
-	/*
-	 * keep same ovfl_pmds, ovfl_notify
-	 */
-	arg->ovfl_ctrl.bits.notify_user     = 0;
-	arg->ovfl_ctrl.bits.block_task      = 0;
-	arg->ovfl_ctrl.bits.mask_monitoring = 0;
-	arg->ovfl_ctrl.bits.reset_ovfl_pmds = 1; /* reset before returning from interrupt handler */
-
-	return 0;
-full:
-	DPRINT_ovfl(("sampling buffer full free=%lu, count=%lu, ovfl_notify=%d\n", last-cur, hdr->hdr_count, ovfl_notify));
-
-	/*
-	 * increment number of buffer overflow.
-	 * important to detect duplicate set of samples.
-	 */
-	hdr->hdr_overflows++;
-
-	/*
-	 * if no notification requested, then we saturate the buffer
-	 */
-	if (ovfl_notify == 0) {
-		arg->ovfl_ctrl.bits.notify_user     = 0;
-		arg->ovfl_ctrl.bits.block_task      = 0;
-		arg->ovfl_ctrl.bits.mask_monitoring = 1;
-		arg->ovfl_ctrl.bits.reset_ovfl_pmds = 0;
-	} else {
-		arg->ovfl_ctrl.bits.notify_user     = 1;
-		arg->ovfl_ctrl.bits.block_task      = 1; /* ignored for non-blocking context */
-		arg->ovfl_ctrl.bits.mask_monitoring = 1;
-		arg->ovfl_ctrl.bits.reset_ovfl_pmds = 0; /* no reset now */
-	}
-	return -1; /* we are full, sorry */
-}
-
-static int
-default_restart(struct task_struct *task, pfm_ovfl_ctrl_t *ctrl, void *buf, struct pt_regs *regs)
-{
-	pfm_default_smpl_hdr_t *hdr;
-
-	hdr = (pfm_default_smpl_hdr_t *)buf;
-
-	hdr->hdr_count    = 0UL;
-	hdr->hdr_cur_offs = sizeof(*hdr);
-
-	ctrl->bits.mask_monitoring = 0;
-	ctrl->bits.reset_ovfl_pmds = 1; /* uses long-reset values */
-
-	return 0;
-}
-
-static int
-default_exit(struct task_struct *task, void *buf, struct pt_regs *regs)
-{
-	DPRINT(("[%d] exit(%p)\n", task_pid_nr(task), buf));
-	return 0;
-}
-
-static pfm_buffer_fmt_t default_fmt={
- 	.fmt_name 	    = "default_format",
- 	.fmt_uuid	    = PFM_DEFAULT_SMPL_UUID,
- 	.fmt_arg_size	    = sizeof(pfm_default_smpl_arg_t),
- 	.fmt_validate	    = default_validate,
- 	.fmt_getsize	    = default_get_size,
- 	.fmt_init	    = default_init,
- 	.fmt_handler	    = default_handler,
- 	.fmt_restart	    = default_restart,
- 	.fmt_restart_active = default_restart,
- 	.fmt_exit	    = default_exit,
-};
-
-static int __init
-pfm_default_smpl_init_module(void)
-{
-	int ret;
-
-	ret = pfm_register_buffer_fmt(&default_fmt);
-	if (ret == 0) {
-		printk("perfmon_default_smpl: %s v%u.%u registered\n",
-			default_fmt.fmt_name,
-			PFM_DEFAULT_SMPL_VERSION_MAJ,
-			PFM_DEFAULT_SMPL_VERSION_MIN);
-	} else {
-		printk("perfmon_default_smpl: %s cannot register ret=%d\n",
-			default_fmt.fmt_name,
-			ret);
-	}
-
-	return ret;
-}
-
-static void __exit
-pfm_default_smpl_cleanup_module(void)
-{
-	int ret;
-	ret = pfm_unregister_buffer_fmt(default_fmt.fmt_uuid);
-
-	printk("perfmon_default_smpl: unregister %s=%d\n", default_fmt.fmt_name, ret);
-}
-
-module_init(pfm_default_smpl_init_module);
-module_exit(pfm_default_smpl_cleanup_module);
-