1 files changed, 0 insertions, 121 deletions
diff --git a/arch/mips/netlogic/xlp/cop2-ex.c b/arch/mips/netlogic/xlp/cop2-ex.c
deleted file mode 100644
index 21e439b3db70..000000000000
--- a/arch/mips/netlogic/xlp/cop2-ex.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2013 Broadcom Corporation.
- *
- * based on arch/mips/cavium-octeon/cpu.c
- * Copyright (C) 2009 Wind River Systems,
- *   written by Ralf Baechle <ralf@linux-mips.org>
- */
-#include <linux/capability.h>
-#include <linux/init.h>
-#include <linux/irqflags.h>
-#include <linux/notifier.h>
-#include <linux/prefetch.h>
-#include <linux/ptrace.h>
-#include <linux/sched.h>
-#include <linux/sched/task_stack.h>
-
-#include <asm/cop2.h>
-#include <asm/current.h>
-#include <asm/mipsregs.h>
-#include <asm/page.h>
-
-#include <asm/netlogic/mips-extns.h>
-
-/*
- * 64 bit ops are done in inline assembly to support 32 bit
- * compilation
- */
-void nlm_cop2_save(struct nlm_cop2_state *r)
-{
-	asm volatile(
-		".set	push\n"
-		".set	noat\n"
-		"dmfc2	$1, $0, 0\n"
-		"sd	$1, 0(%1)\n"
-		"dmfc2	$1, $0, 1\n"
-		"sd	$1, 8(%1)\n"
-		"dmfc2	$1, $0, 2\n"
-		"sd	$1, 16(%1)\n"
-		"dmfc2	$1, $0, 3\n"
-		"sd	$1, 24(%1)\n"
-		"dmfc2	$1, $1, 0\n"
-		"sd	$1, 0(%2)\n"
-		"dmfc2	$1, $1, 1\n"
-		"sd	$1, 8(%2)\n"
-		"dmfc2	$1, $1, 2\n"
-		"sd	$1, 16(%2)\n"
-		"dmfc2	$1, $1, 3\n"
-		"sd	$1, 24(%2)\n"
-		".set	pop\n"
-		: "=m"(*r)
-		: "r"(r->tx), "r"(r->rx));
-
-	r->tx_msg_status = __read_32bit_c2_register($2, 0);
-	r->rx_msg_status = __read_32bit_c2_register($3, 0) & 0x0fffffff;
-}
-
-void nlm_cop2_restore(struct nlm_cop2_state *r)
-{
-	u32 rstat;
-
-	asm volatile(
-		".set	push\n"
-		".set	noat\n"
-		"ld	$1, 0(%1)\n"
-		"dmtc2	$1, $0, 0\n"
-		"ld	$1, 8(%1)\n"
-		"dmtc2	$1, $0, 1\n"
-		"ld	$1, 16(%1)\n"
-		"dmtc2	$1, $0, 2\n"
-		"ld	$1, 24(%1)\n"
-		"dmtc2	$1, $0, 3\n"
-		"ld	$1, 0(%2)\n"
-		"dmtc2	$1, $1, 0\n"
-		"ld	$1, 8(%2)\n"
-		"dmtc2	$1, $1, 1\n"
-		"ld	$1, 16(%2)\n"
-		"dmtc2	$1, $1, 2\n"
-		"ld	$1, 24(%2)\n"
-		"dmtc2	$1, $1, 3\n"
-		".set	pop\n"
-		: : "m"(*r), "r"(r->tx), "r"(r->rx));
-
-	__write_32bit_c2_register($2, 0, r->tx_msg_status);
-	rstat = __read_32bit_c2_register($3, 0) & 0xf0000000u;
-	__write_32bit_c2_register($3, 0, r->rx_msg_status | rstat);
-}
-
-static int nlm_cu2_call(struct notifier_block *nfb, unsigned long action,
-	void *data)
-{
-	unsigned long flags;
-	unsigned int status;
-
-	switch (action) {
-	case CU2_EXCEPTION:
-		if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
-			break;
-		local_irq_save(flags);
-		KSTK_STATUS(current) |= ST0_CU2;
-		status = read_c0_status();
-		write_c0_status(status | ST0_CU2);
-		nlm_cop2_restore(&(current->thread.cp2));
-		write_c0_status(status & ~ST0_CU2);
-		local_irq_restore(flags);
-		pr_info("COP2 access enabled for pid %d (%s)\n",
-					current->pid, current->comm);
-		return NOTIFY_BAD;	/* Don't call default notifier */
-	}
-
-	return NOTIFY_OK;		/* Let default notifier send signals */
-}
-
-static int __init nlm_cu2_setup(void)
-{
-	return cu2_notifier(nlm_cu2_call, 0);
-}
-early_initcall(nlm_cu2_setup);