Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *
 * Copyright (C) IBM Corporation, 2010
 *
 * Author: Anton Blanchard <anton@au.ibm.com>
 */
#include <asm/processor.h>
#include <asm/ppc_asm.h>
#include <asm/export.h>
#include <asm/feature-fixups.h>
 
/* Note: This code relies on -mminimal-toc */
 
_GLOBAL(__arch_hweight8)
BEGIN_FTR_SECTION
<------>b __sw_hweight8
<------>nop
<------>nop
FTR_SECTION_ELSE
<------>PPC_POPCNTB(R3,R3)
<------>clrldi	r3,r3,64-8
<------>blr
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
EXPORT_SYMBOL(__arch_hweight8)
 
_GLOBAL(__arch_hweight16)
BEGIN_FTR_SECTION
<------>b __sw_hweight16
<------>nop
<------>nop
<------>nop
<------>nop
FTR_SECTION_ELSE
  BEGIN_FTR_SECTION_NESTED(50)
<------>PPC_POPCNTB(R3,R3)
<------>srdi	r4,r3,8
<------>add	r3,r4,r3
<------>clrldi	r3,r3,64-8
<------>blr
  FTR_SECTION_ELSE_NESTED(50)
<------>clrlwi  r3,r3,16
<------>PPC_POPCNTW(R3,R3)
<------>clrldi	r3,r3,64-8
<------>blr
  ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 50)
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
EXPORT_SYMBOL(__arch_hweight16)
 
_GLOBAL(__arch_hweight32)
BEGIN_FTR_SECTION
<------>b __sw_hweight32
<------>nop
<------>nop
<------>nop
<------>nop
<------>nop
<------>nop
FTR_SECTION_ELSE
  BEGIN_FTR_SECTION_NESTED(51)
<------>PPC_POPCNTB(R3,R3)
<------>srdi	r4,r3,16
<------>add	r3,r4,r3
<------>srdi	r4,r3,8
<------>add	r3,r4,r3
<------>clrldi	r3,r3,64-8
<------>blr
  FTR_SECTION_ELSE_NESTED(51)
<------>PPC_POPCNTW(R3,R3)
<------>clrldi	r3,r3,64-8
<------>blr
  ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 51)
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
EXPORT_SYMBOL(__arch_hweight32)
 
_GLOBAL(__arch_hweight64)
BEGIN_FTR_SECTION
<------>b __sw_hweight64
<------>nop
<------>nop
<------>nop
<------>nop
<------>nop
<------>nop
<------>nop
<------>nop
FTR_SECTION_ELSE
  BEGIN_FTR_SECTION_NESTED(52)
<------>PPC_POPCNTB(R3,R3)
<------>srdi	r4,r3,32
<------>add	r3,r4,r3
<------>srdi	r4,r3,16
<------>add	r3,r4,r3
<------>srdi	r4,r3,8
<------>add	r3,r4,r3
<------>clrldi	r3,r3,64-8
<------>blr
  FTR_SECTION_ELSE_NESTED(52)
<------>PPC_POPCNTD(R3,R3)
<------>clrldi	r3,r3,64-8
<------>blr
  ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 52)
ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
EXPORT_SYMBOL(__arch_hweight64)