MIPS: math-emu: Inline fpu_emulator_init_fpu() (e0cc3a42) · Commits · e / devices / android_kernel_teracube_emerald

arch/mips/include/asm/fpu.h

+4 −3

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		#include <asm/mipsregs.h>
		#include <asm/cpu.h>
		#include <asm/cpu-features.h>
		#include <asm/fpu_emulator.h>
		#include <asm/hazards.h>
		#include <asm/processor.h>
		#include <asm/current.h>
		@@ -28,7 +29,6 @@
		struct sigcontext;
		struct sigcontext32;

		extern void fpu_emulator_init_fpu(void);
		extern void _init_fpu(void);
		extern void _save_fp(struct task_struct *);
		extern void _restore_fp(struct task_struct *);
		@@ -156,15 +156,16 @@ static inline int init_fpu(void)
		int ret = 0;

		preempt_disable();

		if (cpu_has_fpu) {
		ret = __own_fpu();
		if (!ret)
		_init_fpu();
		} else {
		} else
		fpu_emulator_init_fpu();
		}

		preempt_enable();

		return ret;
		}

+16 −0

Original line number	Diff line number	Diff line
		@@ -23,9 +23,12 @@
		#ifndef _ASM_FPU_EMULATOR_H
		#define _ASM_FPU_EMULATOR_H

		#include <linux/sched.h>
		#include <asm/break.h>
		#include <asm/thread_info.h>
		#include <asm/inst.h>
		#include <asm/local.h>
		#include <asm/processor.h>

		#ifdef CONFIG_DEBUG_FS

		@@ -71,4 +74,17 @@ int mm_isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
		*/
		#define BREAK_MATH (0x0000000d \| (BRK_MEMU << 16))

		#define SIGNALLING_NAN 0x7ff800007ff80000LL

		static inline void fpu_emulator_init_fpu(void)
		{
		struct task_struct *t = current;
		int i;

		t->thread.fpu.fcr31 = 0;

		for (i = 0; i < 32; i++)
		set_fpr64(&t->thread.fpu.fpr[i], 0, SIGNALLING_NAN);
		}

		#endif /* _ASM_FPU_EMULATOR_H */

+1 −1

Original line number	Diff line number	Diff line
		@@ -6,7 +6,7 @@ obj-y += cp1emu.o ieee754dp.o ieee754sp.o ieee754.o dp_div.o dp_mul.o \
		dp_sub.o dp_add.o dp_fsp.o dp_cmp.o dp_simple.o dp_tint.o \
		dp_fint.o dp_tlong.o dp_flong.o sp_div.o sp_mul.o sp_sub.o \
		sp_add.o sp_fdp.o sp_cmp.o sp_simple.o sp_tint.o sp_fint.o \
		sp_tlong.o sp_flong.o kernel_linkage.o dsemul.o
		sp_tlong.o sp_flong.o dsemul.o

		lib-y += ieee754d.o dp_sqrt.o sp_sqrt.o

deleted100644 → 0

+0 −42

Original line number	Diff line number	Diff line
		/*
		* Kevin D. Kissell, kevink@mips and Carsten Langgaard, carstenl@mips.com
		* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
		*
		* This program is free software; you can distribute it and/or modify it
		* under the terms of the GNU General Public License (Version 2) as
		* published by the Free Software Foundation.
		*
		* This program is distributed in the hope it will be useful, but WITHOUT
		* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
		* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
		* for more details.
		*
		* You should have received a copy of the GNU General Public License along
		* with this program; if not, write to the Free Software Foundation, Inc.,
		* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
		*
		* Routines corresponding to Linux kernel FP context
		* manipulation primitives for the Algorithmics MIPS
		* FPU Emulator
		*/
		#include <linux/printk.h>
		#include <asm/current.h>
		#include <asm/fpu.h>
		#include <asm/fpu_emulator.h>

		#define SIGNALLING_NAN 0x7ff800007ff80000LL

		void fpu_emulator_init_fpu(void)
		{
		static int first = 1;
		int i;

		if (first) {
		first = 0;
		printk("Algorithmics/MIPS FPU Emulator v1.5\n");
		}

		current->thread.fpu.fcr31 = 0;
		for (i = 0; i < 32; i++)
		set_fpr64(&current->thread.fpu.fpr[i], 0, SIGNALLING_NAN);
		}