u-boot/arch/mips/include/asm/mipsmtregs.h
Weijie Gao 1cca8ba9ec mips: add asm/mipsmtregs.h for MIPS multi-threading
To be compatible with old u-boot used by lots of MT7621 devices, the u-boot
needs to boot-up MT7621's all cores, and all VPES of each core.

This patch adds asm/mipsmtregs.h from linux kernel which is need for
boot-up VPEs.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-07-13 23:03:37 +02:00

142 lines
4.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* MT regs definitions, follows on from mipsregs.h
* Copyright (C) 2004 - 2005 MIPS Technologies, Inc. All rights reserved.
* Elizabeth Clarke et. al.
*
*/
#ifndef _ASM_MIPSMTREGS_H
#define _ASM_MIPSMTREGS_H
#include <asm/mipsregs.h>
/*
* Macros for use in assembly language code
*/
#define CP0_MVPCONTROL $0, 1
#define CP0_MVPCONF0 $0, 2
#define CP0_MVPCONF1 $0, 3
#define CP0_VPECONTROL $1, 1
#define CP0_VPECONF0 $1, 2
#define CP0_VPECONF1 $1, 3
#define CP0_YQMASK $1, 4
#define CP0_VPESCHEDULE $1, 5
#define CP0_VPESCHEFBK $1, 6
#define CP0_TCSTATUS $2, 1
#define CP0_TCBIND $2, 2
#define CP0_TCRESTART $2, 3
#define CP0_TCHALT $2, 4
#define CP0_TCCONTEXT $2, 5
#define CP0_TCSCHEDULE $2, 6
#define CP0_TCSCHEFBK $2, 7
#define CP0_SRSCONF0 $6, 1
#define CP0_SRSCONF1 $6, 2
#define CP0_SRSCONF2 $6, 3
#define CP0_SRSCONF3 $6, 4
#define CP0_SRSCONF4 $6, 5
/* MVPControl fields */
#define MVPCONTROL_EVP (_ULCAST_(1))
#define MVPCONTROL_VPC_SHIFT 1
#define MVPCONTROL_VPC (_ULCAST_(1) << MVPCONTROL_VPC_SHIFT)
#define MVPCONTROL_STLB_SHIFT 2
#define MVPCONTROL_STLB (_ULCAST_(1) << MVPCONTROL_STLB_SHIFT)
/* MVPConf0 fields */
#define MVPCONF0_PTC_SHIFT 0
#define MVPCONF0_PTC (_ULCAST_(0xff))
#define MVPCONF0_PVPE_SHIFT 10
#define MVPCONF0_PVPE (_ULCAST_(0xf) << MVPCONF0_PVPE_SHIFT)
#define MVPCONF0_TCA_SHIFT 15
#define MVPCONF0_TCA (_ULCAST_(1) << MVPCONF0_TCA_SHIFT)
#define MVPCONF0_PTLBE_SHIFT 16
#define MVPCONF0_PTLBE (_ULCAST_(0x3ff) << MVPCONF0_PTLBE_SHIFT)
#define MVPCONF0_TLBS_SHIFT 29
#define MVPCONF0_TLBS (_ULCAST_(1) << MVPCONF0_TLBS_SHIFT)
#define MVPCONF0_M_SHIFT 31
#define MVPCONF0_M (_ULCAST_(0x1) << MVPCONF0_M_SHIFT)
/* config3 fields */
#define CONFIG3_MT_SHIFT 2
#define CONFIG3_MT (_ULCAST_(1) << CONFIG3_MT_SHIFT)
/* VPEControl fields (per VPE) */
#define VPECONTROL_TARGTC (_ULCAST_(0xff))
#define VPECONTROL_TE_SHIFT 15
#define VPECONTROL_TE (_ULCAST_(1) << VPECONTROL_TE_SHIFT)
#define VPECONTROL_EXCPT_SHIFT 16
#define VPECONTROL_EXCPT (_ULCAST_(0x7) << VPECONTROL_EXCPT_SHIFT)
/* Thread Exception Codes for EXCPT field */
#define THREX_TU 0
#define THREX_TO 1
#define THREX_IYQ 2
#define THREX_GSX 3
#define THREX_YSCH 4
#define THREX_GSSCH 5
#define VPECONTROL_GSI_SHIFT 20
#define VPECONTROL_GSI (_ULCAST_(1) << VPECONTROL_GSI_SHIFT)
#define VPECONTROL_YSI_SHIFT 21
#define VPECONTROL_YSI (_ULCAST_(1) << VPECONTROL_YSI_SHIFT)
/* VPEConf0 fields (per VPE) */
#define VPECONF0_VPA_SHIFT 0
#define VPECONF0_VPA (_ULCAST_(1) << VPECONF0_VPA_SHIFT)
#define VPECONF0_MVP_SHIFT 1
#define VPECONF0_MVP (_ULCAST_(1) << VPECONF0_MVP_SHIFT)
#define VPECONF0_XTC_SHIFT 21
#define VPECONF0_XTC (_ULCAST_(0xff) << VPECONF0_XTC_SHIFT)
/* VPEConf1 fields (per VPE) */
#define VPECONF1_NCP1_SHIFT 0
#define VPECONF1_NCP1 (_ULCAST_(0xff) << VPECONF1_NCP1_SHIFT)
#define VPECONF1_NCP2_SHIFT 10
#define VPECONF1_NCP2 (_ULCAST_(0xff) << VPECONF1_NCP2_SHIFT)
#define VPECONF1_NCX_SHIFT 20
#define VPECONF1_NCX (_ULCAST_(0xff) << VPECONF1_NCX_SHIFT)
/* TCStatus fields (per TC) */
#define TCSTATUS_TASID (_ULCAST_(0xff))
#define TCSTATUS_IXMT_SHIFT 10
#define TCSTATUS_IXMT (_ULCAST_(1) << TCSTATUS_IXMT_SHIFT)
#define TCSTATUS_TKSU_SHIFT 11
#define TCSTATUS_TKSU (_ULCAST_(3) << TCSTATUS_TKSU_SHIFT)
#define TCSTATUS_A_SHIFT 13
#define TCSTATUS_A (_ULCAST_(1) << TCSTATUS_A_SHIFT)
#define TCSTATUS_DA_SHIFT 15
#define TCSTATUS_DA (_ULCAST_(1) << TCSTATUS_DA_SHIFT)
#define TCSTATUS_DT_SHIFT 20
#define TCSTATUS_DT (_ULCAST_(1) << TCSTATUS_DT_SHIFT)
#define TCSTATUS_TDS_SHIFT 21
#define TCSTATUS_TDS (_ULCAST_(1) << TCSTATUS_TDS_SHIFT)
#define TCSTATUS_TSST_SHIFT 22
#define TCSTATUS_TSST (_ULCAST_(1) << TCSTATUS_TSST_SHIFT)
#define TCSTATUS_RNST_SHIFT 23
#define TCSTATUS_RNST (_ULCAST_(3) << TCSTATUS_RNST_SHIFT)
/* Codes for RNST */
#define TC_RUNNING 0
#define TC_WAITING 1
#define TC_YIELDING 2
#define TC_GATED 3
#define TCSTATUS_TMX_SHIFT 27
#define TCSTATUS_TMX (_ULCAST_(1) << TCSTATUS_TMX_SHIFT)
/* TCStatus TCU bits can use same definitions/offsets as CU bits in Status */
/* TCBind */
#define TCBIND_CURVPE_SHIFT 0
#define TCBIND_CURVPE (_ULCAST_(0xf))
#define TCBIND_CURTC_SHIFT 21
#define TCBIND_CURTC (_ULCAST_(0xff) << TCBIND_CURTC_SHIFT)
/* TCHalt */
#define TCHALT_H (_ULCAST_(1))
#endif