xref: /rk3399_rockchip-uboot/arch/xtensa/include/asm/arch-dc233c/tie-asm.h (revision 2d2811c230be23d4cc810e60b0582f0b13d70d63)

/*
 * This header file contains assembly-language definitions (assembly
 * macros, etc.) for this specific Xtensa processor's TIE extensions
 * and options.  It is customized to this Xtensa processor configuration.
 * This file is autogenerated, please do not edit.
 *
 * Copyright (C) 1999-2010 Tensilica Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#ifndef _XTENSA_CORE_TIE_ASM_H
#define _XTENSA_CORE_TIE_ASM_H

/*  Selection parameter values for save-area save/restore macros:  */
/*  Option vs. TIE:  */
#define XTHAL_SAS_TIE	0x0001	/* custom extension or coprocessor */
#define XTHAL_SAS_OPT	0x0002	/* optional (and not a coprocessor) */
#define XTHAL_SAS_ANYOT	0x0003	/* both of the above */
/*  Whether used automatically by compiler:  */
#define XTHAL_SAS_NOCC	0x0004	/* not used by compiler w/o special opts/code */
#define XTHAL_SAS_CC	0x0008	/* used by compiler without special opts/code */
#define XTHAL_SAS_ANYCC	0x000C	/* both of the above */
/*  ABI handling across function calls:  */
#define XTHAL_SAS_CALR	0x0010	/* caller-saved */
#define XTHAL_SAS_CALE	0x0020	/* callee-saved */
#define XTHAL_SAS_GLOB	0x0040	/* global across function calls (in thread) */
#define XTHAL_SAS_ANYABI 0x0070	/* all of the above three */
/*  Misc  */
#define XTHAL_SAS_ALL	0xFFFF	/* include all default NCP contents */
#define XTHAL_SAS3(optie,ccuse,abi)	( ((optie) & XTHAL_SAS_ANYOT)  \
					| ((ccuse) & XTHAL_SAS_ANYCC)  \
					| ((abi)   & XTHAL_SAS_ANYABI) )



    /*
     *  Macro to save all non-coprocessor (extra) custom TIE and optional state
     *  (not including zero-overhead loop registers).
     *  Required parameters:
     *      ptr		Save area pointer address register (clobbered)
     *			(register must contain a 4 byte aligned address).
     *      at1..at4	Four temporary address registers (first XCHAL_NCP_NUM_ATMPS
     *			registers are clobbered, the remaining are unused).
     *  Optional parameters:
     *      continue	If macro invoked as part of a larger store sequence, set to 1
     *			if this is not the first in the sequence.  Defaults to 0.
     *      ofs		Offset from start of larger sequence (from value of first ptr
     *			in sequence) at which to store.  Defaults to next available space
     *			(or 0 if <continue> is 0).
     *      select	Select what category(ies) of registers to store, as a bitmask
     *			(see XTHAL_SAS_xxx constants).  Defaults to all registers.
     *      alloc	Select what category(ies) of registers to allocate; if any
     *			category is selected here that is not in <select>, space for
     *			the corresponding registers is skipped without doing any store.
     */
    .macro xchal_ncp_store  ptr at1 at2 at3 at4  continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0
	xchal_sa_start	\continue, \ofs
	// Optional global register used by default by the compiler:
	.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\select)
	xchal_sa_align	\ptr, 0, 1020, 4, 4
	rur.THREADPTR	\at1		// threadptr option
	s32i	\at1, \ptr, .Lxchal_ofs_+0
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 4
	.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\alloc)) == 0
	xchal_sa_align	\ptr, 0, 1020, 4, 4
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 4
	.endif
	// Optional caller-saved registers used by default by the compiler:
	.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\select)
	xchal_sa_align	\ptr, 0, 1016, 4, 4
	rsr	\at1, ACCLO			// MAC16 option
	s32i	\at1, \ptr, .Lxchal_ofs_+0
	rsr	\at1, ACCHI			// MAC16 option
	s32i	\at1, \ptr, .Lxchal_ofs_+4
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 8
	.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
	xchal_sa_align	\ptr, 0, 1016, 4, 4
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 8
	.endif
	// Optional caller-saved registers not used by default by the compiler:
	.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select)
	xchal_sa_align	\ptr, 0, 1004, 4, 4
	rsr	\at1, M0			// MAC16 option
	s32i	\at1, \ptr, .Lxchal_ofs_+0
	rsr	\at1, M1			// MAC16 option
	s32i	\at1, \ptr, .Lxchal_ofs_+4
	rsr	\at1, M2			// MAC16 option
	s32i	\at1, \ptr, .Lxchal_ofs_+8
	rsr	\at1, M3			// MAC16 option
	s32i	\at1, \ptr, .Lxchal_ofs_+12
	rsr	\at1, SCOMPARE1			// conditional store option
	s32i	\at1, \ptr, .Lxchal_ofs_+16
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 20
	.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
	xchal_sa_align	\ptr, 0, 1004, 4, 4
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 20
	.endif
    .endm	// xchal_ncp_store

    /*
     *  Macro to restore all non-coprocessor (extra) custom TIE and optional state
     *  (not including zero-overhead loop registers).
     *  Required parameters:
     *      ptr		Save area pointer address register (clobbered)
     *			(register must contain a 4 byte aligned address).
     *      at1..at4	Four temporary address registers (first XCHAL_NCP_NUM_ATMPS
     *			registers are clobbered, the remaining are unused).
     *  Optional parameters:
     *      continue	If macro invoked as part of a larger load sequence, set to 1
     *			if this is not the first in the sequence.  Defaults to 0.
     *      ofs		Offset from start of larger sequence (from value of first ptr
     *			in sequence) at which to load.  Defaults to next available space
     *			(or 0 if <continue> is 0).
     *      select	Select what category(ies) of registers to load, as a bitmask
     *			(see XTHAL_SAS_xxx constants).  Defaults to all registers.
     *      alloc	Select what category(ies) of registers to allocate; if any
     *			category is selected here that is not in <select>, space for
     *			the corresponding registers is skipped without doing any load.
     */
    .macro xchal_ncp_load  ptr at1 at2 at3 at4  continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0
	xchal_sa_start	\continue, \ofs
	// Optional global register used by default by the compiler:
	.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\select)
	xchal_sa_align	\ptr, 0, 1020, 4, 4
	l32i	\at1, \ptr, .Lxchal_ofs_+0
	wur.THREADPTR	\at1		// threadptr option
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 4
	.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\alloc)) == 0
	xchal_sa_align	\ptr, 0, 1020, 4, 4
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 4
	.endif
	// Optional caller-saved registers used by default by the compiler:
	.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\select)
	xchal_sa_align	\ptr, 0, 1016, 4, 4
	l32i	\at1, \ptr, .Lxchal_ofs_+0
	wsr	\at1, ACCLO			// MAC16 option
	l32i	\at1, \ptr, .Lxchal_ofs_+4
	wsr	\at1, ACCHI			// MAC16 option
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 8
	.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
	xchal_sa_align	\ptr, 0, 1016, 4, 4
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 8
	.endif
	// Optional caller-saved registers not used by default by the compiler:
	.ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select)
	xchal_sa_align	\ptr, 0, 1004, 4, 4
	l32i	\at1, \ptr, .Lxchal_ofs_+0
	wsr	\at1, M0			// MAC16 option
	l32i	\at1, \ptr, .Lxchal_ofs_+4
	wsr	\at1, M1			// MAC16 option
	l32i	\at1, \ptr, .Lxchal_ofs_+8
	wsr	\at1, M2			// MAC16 option
	l32i	\at1, \ptr, .Lxchal_ofs_+12
	wsr	\at1, M3			// MAC16 option
	l32i	\at1, \ptr, .Lxchal_ofs_+16
	wsr	\at1, SCOMPARE1			// conditional store option
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 20
	.elseif ((XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
	xchal_sa_align	\ptr, 0, 1004, 4, 4
	.set	.Lxchal_ofs_, .Lxchal_ofs_ + 20
	.endif
    .endm	// xchal_ncp_load


#define XCHAL_NCP_NUM_ATMPS	1



#define XCHAL_SA_NUM_ATMPS	1

#endif /*_XTENSA_CORE_TIE_ASM_H*/