From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F240CC433EF for ; Sat, 8 Jan 2022 09:19:20 +0000 (UTC) Received: from localhost ([::1]:55840 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n67sd-0003b7-Vv for qemu-devel@archiver.kernel.org; Sat, 08 Jan 2022 04:19:20 -0500 Received: from eggs.gnu.org ([209.51.188.92]:50278) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n67oL-0003iq-0H for qemu-devel@nongnu.org; Sat, 08 Jan 2022 04:14:53 -0500 Received: from mail.loongson.cn ([114.242.206.163]:38810 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n67oB-0000qe-Mj for qemu-devel@nongnu.org; Sat, 08 Jan 2022 04:14:48 -0500 Received: from localhost.localdomain (unknown [10.2.5.185]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9DxKMrrVdlhvLMAAA--.1341S4; Sat, 08 Jan 2022 17:14:32 +0800 (CST) From: Xiaojuan Yang To: qemu-devel@nongnu.org Subject: [RFC PATCH v4 02/30] target/loongarch: Add CSR registers definition Date: Sat, 8 Jan 2022 04:13:51 -0500 Message-Id: <20220108091419.2027710-3-yangxiaojuan@loongson.cn> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220108091419.2027710-1-yangxiaojuan@loongson.cn> References: <20220108091419.2027710-1-yangxiaojuan@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: AQAAf9DxKMrrVdlhvLMAAA--.1341S4 X-Coremail-Antispam: 1UD129KBjvAXoW3uFy3GrWkuw15Cr4xXw4ktFb_yoW8JF1Dto W8Wa1fKw15Xw12ya1Dur97X3WDArWkCF1v9F1vvrW0v3W7Gr98Ga4FyayUuw43XF1jgF18 uF12kFn5Ja92yryUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73VFW2AGmfu7bjvjm3 AaLaJ3UjIYCTnIWjDUYxBIdaVFxhVjvjDU0xZFpf9x0zRUUUUUUUUU= X-CM-SenderInfo: p1dqw5xldry3tdq6z05rqj20fqof0/ Received-SPF: pass client-ip=114.242.206.163; envelope-from=yangxiaojuan@loongson.cn; helo=loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, UPPERCASE_50_75=0.008 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: philmd@redhat.com, mark.cave-ayland@ilande.co.uk, richard.henderson@linaro.org, Song Gao Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" 1.Define All the CSR registers and its field. 2.Set some default csr values. Signed-off-by: Xiaojuan Yang Signed-off-by: Song Gao --- target/loongarch/cpu-csr.h | 236 +++++++++++++++++++++++++++++++++++++ target/loongarch/cpu.c | 35 ++++++ target/loongarch/cpu.h | 57 +++++++++ 3 files changed, 328 insertions(+) create mode 100644 target/loongarch/cpu-csr.h diff --git a/target/loongarch/cpu-csr.h b/target/loongarch/cpu-csr.h new file mode 100644 index 0000000000..7a57b7ea36 --- /dev/null +++ b/target/loongarch/cpu-csr.h @@ -0,0 +1,236 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * QEMU LoongArch CPU CSR registers + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +#ifndef LOONGARCH_CPU_CSR_H +#define LOONGARCH_CPU_CSR_H + +/* Base on: kernal: arch/loongarch/include/asm/loongarch.h */ + +/* Basic CSR register */ +#define LOONGARCH_CSR_CRMD 0x0 /* Current mode info */ +FIELD(CSR_CRMD, PLV, 0, 2) +FIELD(CSR_CRMD, IE, 2, 1) +FIELD(CSR_CRMD, DA, 3, 1) +FIELD(CSR_CRMD, PG, 4, 1) +FIELD(CSR_CRMD, DATF, 5, 2) +FIELD(CSR_CRMD, DATM, 7, 2) +FIELD(CSR_CRMD, WE, 9, 1) + +#define LOONGARCH_CSR_PRMD 0x1 /* Prev-exception mode info */ +FIELD(CSR_PRMD, PPLV, 0, 2) +FIELD(CSR_PRMD, PIE, 2, 1) +FIELD(CSR_PRMD, PWE, 3, 1) + +#define LOONGARCH_CSR_EUEN 0x2 /* Extended unit enable */ +FIELD(CSR_EUEN, FPE, 0, 1) +FIELD(CSR_EUEN, SXE, 1, 1) +FIELD(CSR_EUEN, ASXE, 2, 1) +FIELD(CSR_EUEN, BTE, 3, 1) + +#define LOONGARCH_CSR_MISC 0x3 /* Misc config */ + +#define LOONGARCH_CSR_ECFG 0x4 /* Exception config */ +FIELD(CSR_ECFG, LIE, 0, 13) +FIELD(CSR_ECFG, VS, 16, 3) + +#define LOONGARCH_CSR_ESTAT 0x5 /* Exception status */ +FIELD(CSR_ESTAT, IS, 0, 13) +FIELD(CSR_ESTAT, ECODE, 16, 6) +FIELD(CSR_ESTAT, ESUBCODE, 22, 9) + +#define EXCCODE_EXTERNAL_INT 64 /* plus external interrupt number */ +#define EXCCODE_INT 0 +#define EXCCODE_PIL 1 +#define EXCCODE_PIS 2 +#define EXCCODE_PIF 3 +#define EXCCODE_PME 4 +#define EXCCODE_PNR 5 +#define EXCCODE_PNX 6 +#define EXCCODE_PPI 7 +#define EXCCODE_ADEF 8 /* Have different expsubcode */ +#define EXCCODE_ADEM 8 /* Have different expsubcode */ +#define EXCCODE_ALE 9 +#define EXCCODE_BCE 10 +#define EXCCODE_SYS 11 +#define EXCCODE_BRK 12 +#define EXCCODE_INE 13 +#define EXCCODE_IPE 14 +#define EXCCODE_FPD 15 +#define EXCCODE_SXD 16 +#define EXCCODE_ASXD 17 +#define EXCCODE_FPE 18 /* Have different expsubcode */ +#define EXCCODE_VFPE 18 +#define EXCCODE_WPEF 19 /* Have different expsubcode */ +#define EXCCODE_WPEM 19 +#define EXCCODE_BTD 20 +#define EXCCODE_BTE 21 +#define EXCCODE_DBP 26 /* Reserved decode used for debug */ + +#define LOONGARCH_CSR_ERA 0x6 /* Exception return address */ + +#define LOONGARCH_CSR_BADV 0x7 /* Bad virtual address */ + +#define LOONGARCH_CSR_BADI 0x8 /* Bad instruction */ + +#define LOONGARCH_CSR_EENTRY 0xc /* Exception enter base address */ + +/* TLB related CSR register */ +#define LOONGARCH_CSR_TLBIDX 0x10 /* TLB Index, EHINV, PageSize, NP */ +FIELD(CSR_TLBIDX, INDEX, 0, 12) +FIELD(CSR_TLBIDX, PS, 24, 6) +FIELD(CSR_TLBIDX, NE, 31, 1) + +#define LOONGARCH_CSR_TLBEHI 0x11 /* TLB EntryHi without ASID */ +FIELD(CSR_TLBEHI, VPPN, 13, 35) + +#define LOONGARCH_CSR_TLBELO0 0x12 /* TLB EntryLo0 */ +#define LOONGARCH_CSR_TLBELO1 0x13 /* TLB EntryLo1 */ +FIELD(TLBENTRY, V, 0, 1) +FIELD(TLBENTRY, D, 1, 1) +FIELD(TLBENTRY, PLV, 2, 2) +FIELD(TLBENTRY, MAT, 4, 2) +FIELD(TLBENTRY, G, 6, 1) +FIELD(TLBENTRY, PPN, 12, 36) +FIELD(TLBENTRY, NR, 61, 1) +FIELD(TLBENTRY, NX, 62, 1) +FIELD(TLBENTRY, RPLV, 63, 1) + +#define LOONGARCH_CSR_ASID 0x18 /* Address space identifier */ +FIELD(CSR_ASID, ASID, 0, 10) +FIELD(CSR_ASID, ASIDBITS, 16, 8) + +/* Page table base address when badv[47] = 0 */ +#define LOONGARCH_CSR_PGDL 0x19 +/* Page table base address when badv[47] = 1 */ +#define LOONGARCH_CSR_PGDH 0x1a + +#define LOONGARCH_CSR_PGD 0x1b /* Page table base */ + +/* Page walk controller's low addr */ +#define LOONGARCH_CSR_PWCL 0x1c +FIELD(CSR_PWCL, PTBASE, 0, 5) +FIELD(CSR_PWCL, PTWIDTH, 5, 5) +FIELD(CSR_PWCL, DIR1_BASE, 10, 5) +FIELD(CSR_PWCL, DIR1_WIDTH, 15, 5) +FIELD(CSR_PWCL, DIR2_BASE, 20, 5) +FIELD(CSR_PWCL, DIR2_WIDTH, 25, 5) +FIELD(CSR_PWCL, PTEWIDTH, 30, 2) + +/* Page walk controller's high addr */ +#define LOONGARCH_CSR_PWCH 0x1d +FIELD(CSR_PWCH, DIR3_BASE, 0, 6) +FIELD(CSR_PWCH, DIR3_WIDTH, 6, 6) +FIELD(CSR_PWCH, DIR4_BASE, 12, 6) +FIELD(CSR_PWCH, DIR4_WIDTH, 18, 6) + +#define LOONGARCH_CSR_STLBPS 0x1e /*Stlb page size*/ +FIELD(CSR_STLBPS, PS, 0, 5) + +#define LOONGARCH_CSR_RVACFG 0x1f /* Reduced virtual address config */ +FIELD(CSR_RVACFG, RBITS, 0, 4) + +/* Config CSR registers */ +#define LOONGARCH_CSR_CPUID 0x20 /* CPU core id */ + +#define LOONGARCH_CSR_PRCFG1 0x21 /* Config1 */ +FIELD(CSR_PRCFG1, SAVE_NUM, 0, 4) +FIELD(CSR_PRCFG1, TIMER_BITS, 4, 8) +FIELD(CSR_PRCFG1, VSMAX, 12, 3) + +#define LOONGARCH_CSR_PRCFG2 0x22 /* Config2 */ + +#define LOONGARCH_CSR_PRCFG3 0x23 /* Config3 */ +FIELD(CSR_PRCFG3, TLB_TYPE, 0, 4) +FIELD(CSR_PRCFG3, MTLB_ENTRY, 4, 8) +FIELD(CSR_PRCFG3, STLB_WAYS, 12, 8) +FIELD(CSR_PRCFG3, STLB_SETS, 20, 8) + +/* + * Save registers count can read from PRCFG1.SAVE_NUM + * The Min count is 1. Max count is 15. + */ +#define LOONGARCH_CSR_SAVE(N) (0x30 + N) + +/* Timer registers */ +#define LOONGARCH_CSR_TID 0x40 /* Timer ID */ + +#define LOONGARCH_CSR_TCFG 0x41 /* Timer config */ +FIELD(CSR_TCFG, EN, 0, 1) +FIELD(CSR_TCFG, PERIODIC, 1, 1) +FIELD(CSR_TCFG, INIT_VAL, 2, 46) + +#define LOONGARCH_CSR_TVAL 0x42 /* Timer ticks remain */ + +#define LOONGARCH_CSR_CNTC 0x43 /* Timer offset */ + +#define LOONGARCH_CSR_TICLR 0x44 /* Timer interrupt clear */ + +/* LLBCTL register */ +#define LOONGARCH_CSR_LLBCTL 0x60 /* LLBit control */ +FIELD(CSR_LLBCTL, ROLLB, 0, 1) +FIELD(CSR_LLBCTL, WCLLB, 1, 1) +FIELD(CSR_LLBCTL, KLO, 2, 1) + +/* Implement dependent */ +#define LOONGARCH_CSR_IMPCTL1 0x80 /* LoongArch config1 */ + +#define LOONGARCH_CSR_IMPCTL2 0x81 /* LoongArch config2*/ + +/* TLB Refill registers */ +#define LOONGARCH_CSR_TLBRENTRY 0x88 /* TLB refill exception address */ +#define LOONGARCH_CSR_TLBRBADV 0x89 /* TLB refill badvaddr */ +#define LOONGARCH_CSR_TLBRERA 0x8a /* TLB refill ERA */ +#define LOONGARCH_CSR_TLBRSAVE 0x8b /* KScratch for TLB refill */ +FIELD(CSR_TLBRERA, ISTLBR, 0, 1) +FIELD(CSR_TLBRERA, PC, 2, 62) +#define LOONGARCH_CSR_TLBRELO0 0x8c /* TLB refill entrylo0 */ +#define LOONGARCH_CSR_TLBRELO1 0x8d /* TLB refill entrylo1 */ +#define LOONGARCH_CSR_TLBREHI 0x8e /* TLB refill entryhi */ +FIELD(CSR_TLBREHI, PS, 0, 6) +FIELD(CSR_TLBREHI, VPPN, 13, 35) +#define LOONGARCH_CSR_TLBRPRMD 0x8f /* TLB refill mode info */ +FIELD(CSR_TLBRPRMD, PPLV, 0, 2) +FIELD(CSR_TLBRPRMD, PIE, 2, 1) +FIELD(CSR_TLBRPRMD, PWE, 4, 1) + +/* Machine Error registers */ +#define LOONGARCH_CSR_MERRCTL 0x90 /* ERRCTL */ +FIELD(CSR_MERRCTL, ISMERR, 0, 1) +#define LOONGARCH_CSR_MERRINFO1 0x91 +#define LOONGARCH_CSR_MERRINFO2 0x92 +#define LOONGARCH_CSR_MERRENTRY 0x93 /* MError exception base */ +#define LOONGARCH_CSR_MERRERA 0x94 /* MError exception PC */ +#define LOONGARCH_CSR_MERRSAVE 0x95 /* KScratch for error exception */ + +#define LOONGARCH_CSR_CTAG 0x98 /* TagLo + TagHi */ + +/* Direct map windows */ +#define LOONGARCH_CSR_DMW(N) (0x180 + N) /* direct map win MEM & IF */ +FIELD(CSR_DMW, PLV0, 0, 1) +FIELD(CSR_DMW, PLV1, 1, 1) +FIELD(CSR_DMW, PLV2, 2, 1) +FIELD(CSR_DMW, PLV3, 3, 1) +FIELD(CSR_DMW, MAT, 4, 2) +FIELD(CSR_DMW, VSEG, 60, 4) + +#define dmw_va2pa(va) \ + (va & MAKE_64BIT_MASK(0, TARGET_VIRT_ADDR_SPACE_BITS)) + +/* Debug registers */ +#define LOONGARCH_CSR_DBG 0x500 /* debug config */ +FIELD(CSR_DBG, DST, 0, 1) +FIELD(CSR_DBG, DREV, 1, 7) +FIELD(CSR_DBG, DEI, 8, 1) +FIELD(CSR_DBG, DCL, 9, 1) +FIELD(CSR_DBG, DFW, 10, 1) +FIELD(CSR_DBG, DMW, 11, 1) +FIELD(CSR_DBG, ECODE, 16, 6) + +#define LOONGARCH_CSR_DERA 0x501 /* Debug era */ +#define LOONGARCH_CSR_DSAVE 0x502 /* Debug save */ + +#endif /* LOONGARCH_CPU_CSR_H */ diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index 883c6c623f..ed03ec2986 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -156,6 +156,8 @@ static void loongarch_3a5000_initfn(Object *obj) data = FIELD_DP32(data, CPUCFG20, L3IU_WAYS, 0xf00f); data = FIELD_DP32(data, CPUCFG20, L3IU_SETS, 0x60); env->cpucfg[20] = data; + + env->CSR_ASID = FIELD_DP64(0, CSR_ASID, ASIDBITS, 0xa); } static void loongarch_cpu_list_entry(gpointer data, gpointer user_data) @@ -179,12 +181,45 @@ static void loongarch_cpu_reset(DeviceState *dev) LoongArchCPU *cpu = LOONGARCH_CPU(cs); LoongArchCPUClass *lacc = LOONGARCH_CPU_GET_CLASS(cpu); CPULoongArchState *env = &cpu->env; + int n; lacc->parent_reset(dev); env->fcsr0_mask = FCSR0_M1 | FCSR0_M2 | FCSR0_M3; env->fcsr0 = 0x0; + /* Set csr registers value after reset */ + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PLV, 0); + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, IE, 0); + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DA, 1); + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PG, 0); + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATF, 1); + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATM, 1); + + env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, FPE, 0); + env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, SXE, 0); + env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, ASXE, 0); + env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, BTE, 0); + + env->CSR_MISC = 0; + + env->CSR_ECFG = FIELD_DP64(env->CSR_ECFG, CSR_ECFG, VS, 0); + env->CSR_ECFG = FIELD_DP64(env->CSR_ECFG, CSR_ECFG, LIE, 0); + + env->CSR_ESTAT = env->CSR_ESTAT & (~MAKE_64BIT_MASK(0, 2)); + env->CSR_RVACFG = FIELD_DP64(env->CSR_RVACFG, CSR_RVACFG, RBITS, 0); + env->CSR_TCFG = FIELD_DP64(env->CSR_TCFG, CSR_TCFG, EN, 0); + env->CSR_LLBCTL = FIELD_DP64(env->CSR_LLBCTL, CSR_LLBCTL, KLO, 0); + env->CSR_TLBRERA = FIELD_DP64(env->CSR_TLBRERA, CSR_TLBRERA, ISTLBR, 0); + env->CSR_MERRCTL = FIELD_DP64(env->CSR_MERRCTL, CSR_MERRCTL, ISMERR, 0); + + for (n = 0; n < 4; n++) { + env->CSR_DMW[n] = FIELD_DP64(env->CSR_DMW[n], CSR_DMW, PLV0, 0); + env->CSR_DMW[n] = FIELD_DP64(env->CSR_DMW[n], CSR_DMW, PLV1, 0); + env->CSR_DMW[n] = FIELD_DP64(env->CSR_DMW[n], CSR_DMW, PLV2, 0); + env->CSR_DMW[n] = FIELD_DP64(env->CSR_DMW[n], CSR_DMW, PLV3, 0); + } + restore_fp_status(env); cs->exception_index = EXCP_NONE; } diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index b036cdee5f..cf7fc46f72 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -11,6 +11,7 @@ #include "exec/cpu-defs.h" #include "fpu/softfloat-types.h" #include "hw/registerfields.h" +#include "cpu-csr.h" #define TCG_GUEST_DEFAULT_MO (0) @@ -170,6 +171,62 @@ struct CPULoongArchState { uint64_t llval; uint64_t badaddr; + + /* LoongArch CSR registers */ + uint64_t CSR_CRMD; + uint64_t CSR_PRMD; + uint64_t CSR_EUEN; + uint64_t CSR_MISC; + uint64_t CSR_ECFG; + uint64_t CSR_ESTAT; + uint64_t CSR_ERA; + uint64_t CSR_BADV; + uint64_t CSR_BADI; + uint64_t CSR_EENTRY; + uint64_t CSR_TLBIDX; + uint64_t CSR_TLBEHI; + uint64_t CSR_TLBELO0; + uint64_t CSR_TLBELO1; + uint64_t CSR_ASID; + uint64_t CSR_PGDL; + uint64_t CSR_PGDH; + uint64_t CSR_PGD; + uint64_t CSR_PWCL; + uint64_t CSR_PWCH; + uint64_t CSR_STLBPS; + uint64_t CSR_RVACFG; + uint64_t CSR_CPUID; + uint64_t CSR_PRCFG1; + uint64_t CSR_PRCFG2; + uint64_t CSR_PRCFG3; + uint64_t CSR_SAVE[16]; + uint64_t CSR_TID; + uint64_t CSR_TCFG; + uint64_t CSR_TVAL; + uint64_t CSR_CNTC; + uint64_t CSR_TICLR; + uint64_t CSR_LLBCTL; + uint64_t CSR_IMPCTL1; + uint64_t CSR_IMPCTL2; + uint64_t CSR_TLBRENTRY; + uint64_t CSR_TLBRBADV; + uint64_t CSR_TLBRERA; + uint64_t CSR_TLBRSAVE; + uint64_t CSR_TLBRELO0; + uint64_t CSR_TLBRELO1; + uint64_t CSR_TLBREHI; + uint64_t CSR_TLBRPRMD; + uint64_t CSR_MERRCTL; + uint64_t CSR_MERRINFO1; + uint64_t CSR_MERRINFO2; + uint64_t CSR_MERRENTRY; + uint64_t CSR_MERRERA; + uint64_t CSR_MERRSAVE; + uint64_t CSR_CTAG; + uint64_t CSR_DMW[4]; + uint64_t CSR_DBG; + uint64_t CSR_DERA; + uint64_t CSR_DSAVE; }; /** -- 2.27.0