Commit 5230429a authored by Al Viro's avatar Al Viro
Browse files

sparc64: take fprs_write() and friends to start_thread() 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 1918c7f5

arch/sparc/include/asm/processor_64.h

+9 −0
Original line number Diff line number Diff line
@@ -94,6 +94,7 @@ struct thread_struct { 
#ifndef __ASSEMBLY__



#include <linux/types.h>

#include <asm/fpumacro.h>



/* Return saved PC of a blocked thread. */

struct task_struct;
@@ -143,6 +144,10 @@ do { \ 
	: \

	: "r" (regs), "r" (sp - sizeof(struct reg_window) - STACK_BIAS), \

	  "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \

	fprs_write(0);	\

	current_thread_info()->xfsr[0] = 0;	\

	current_thread_info()->fpsaved[0] = 0;	\

	regs->tstate &= ~TSTATE_PEF;	\

} while (0)



#define start_thread32(regs, pc, sp) \
@@ -183,6 +188,10 @@ do { \ 
	: \

	: "r" (regs), "r" (sp - sizeof(struct reg_window32)), \

	  "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \

	fprs_write(0);	\

	current_thread_info()->xfsr[0] = 0;	\

	current_thread_info()->fpsaved[0] = 0;	\

	regs->tstate &= ~TSTATE_PEF;	\

} while (0)



/* Free all resources held by a thread. */

arch/sparc/kernel/process_64.c

+0 −6
Original line number Diff line number Diff line
@@ -692,12 +692,6 @@ asmlinkage int sparc_execve(struct pt_regs *regs) 
			  (const char __user *const __user *)

			  regs->u_regs[base + UREG_I2], regs);

	putname(filename);

	if (!error) {

		fprs_write(0);

		current_thread_info()->xfsr[0] = 0;

		current_thread_info()->fpsaved[0] = 0;

		regs->tstate &= ~TSTATE_PEF;

	}

out:

	return error;

}

arch/sparc/kernel/sys_sparc32.c

+0 −7
Original line number Diff line number Diff line
@@ -421,13 +421,6 @@ asmlinkage long sparc32_execve(struct pt_regs *regs) 
				 compat_ptr(regs->u_regs[base + UREG_I2]), regs);



	putname(filename);



	if (!error) {

		fprs_write(0);

		current_thread_info()->xfsr[0] = 0;

		current_thread_info()->fpsaved[0] = 0;

		regs->tstate &= ~TSTATE_PEF;

	}

out:

	return error;

}