From patchwork Thu Jun 23 08:55:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 12891964 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 ECF74C43334 for ; Thu, 23 Jun 2022 09:07:36 +0000 (UTC) Received: from localhost ([::1]:38320 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o4IoJ-0002xj-Ik for qemu-devel@archiver.kernel.org; Thu, 23 Jun 2022 05:07:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38680) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4Icy-0006HY-88 for qemu-devel@nongnu.org; Thu, 23 Jun 2022 04:55:52 -0400 Received: from mail.loongson.cn ([114.242.206.163]:52398 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o4Icu-0008TQ-Rl for qemu-devel@nongnu.org; Thu, 23 Jun 2022 04:55:51 -0400 Received: from localhost.localdomain (unknown [10.2.5.185]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9DxP0x_KrRiTjVWAA--.30922S13; Thu, 23 Jun 2022 16:55:35 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, laurent@vivier.eu, gaosong@loongson.cn, Xiaojuan Yang Subject: [PATCH v19 11/13] target/loongarch: Adjust functions and structure to support user-mode Date: Thu, 23 Jun 2022 16:55:24 +0800 Message-Id: <20220623085526.1678168-12-gaosong@loongson.cn> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220623085526.1678168-1-gaosong@loongson.cn> References: <20220623085526.1678168-1-gaosong@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf9DxP0x_KrRiTjVWAA--.30922S13 X-Coremail-Antispam: 1UD129KBjvJXoW3Xr4ftr4DWw4xtr1xJr15XFb_yoWfZry8pr y7Zr1ayw48trZ7Jas7J390gFn8XF1I9342va13KryS9a17XF1DXr18t3s0gFWDG3y8WryI gF10ya4UZ3WUJ3JanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU== X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Some functions and member of the structure are different with softmmu-mode So we need adjust them to support user-mode. Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson --- target/loongarch/cpu.c | 21 ++++++++++- target/loongarch/cpu.h | 6 ++++ target/loongarch/helper.h | 2 ++ .../insn_trans/trans_privileged.c.inc | 36 +++++++++++++++++++ target/loongarch/internals.h | 2 ++ target/loongarch/op_helper.c | 6 ++++ 6 files changed, 72 insertions(+), 1 deletion(-) diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index bf163a8dce..47c0bdd1ac 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -82,6 +82,7 @@ static void loongarch_cpu_set_pc(CPUState *cs, vaddr value) env->pc = value; } +#ifndef CONFIG_USER_ONLY #include "hw/loongarch/virt.h" void loongarch_cpu_set_irq(void *opaque, int irq, int level) @@ -295,6 +296,7 @@ static bool loongarch_cpu_exec_interrupt(CPUState *cs, int interrupt_request) } return false; } +#endif #ifdef CONFIG_TCG static void loongarch_cpu_synchronize_from_tb(CPUState *cs, @@ -309,6 +311,9 @@ static void loongarch_cpu_synchronize_from_tb(CPUState *cs, static bool loongarch_cpu_has_work(CPUState *cs) { +#ifdef CONFIG_USER_ONLY + return true; +#else LoongArchCPU *cpu = LOONGARCH_CPU(cs); CPULoongArchState *env = &cpu->env; bool has_work = false; @@ -319,6 +324,7 @@ static bool loongarch_cpu_has_work(CPUState *cs) } return has_work; +#endif } static void loongarch_la464_initfn(Object *obj) @@ -467,7 +473,9 @@ static void loongarch_cpu_reset(DeviceState *dev) env->CSR_DMW[n] = FIELD_DP64(env->CSR_DMW[n], CSR_DMW, PLV3, 0); } +#ifndef CONFIG_USER_ONLY env->pc = 0x1c000000; +#endif restore_fp_status(env); cs->exception_index = -1; @@ -498,6 +506,7 @@ static void loongarch_cpu_realizefn(DeviceState *dev, Error **errp) lacc->parent_realize(dev, errp); } +#ifndef CONFIG_USER_ONLY static void loongarch_qemu_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { @@ -532,13 +541,16 @@ static const MemoryRegionOps loongarch_qemu_ops = { .max_access_size = 8, }, }; +#endif static void loongarch_cpu_init(Object *obj) { LoongArchCPU *cpu = LOONGARCH_CPU(obj); - CPULoongArchState *env = &cpu->env; cpu_set_cpustate_pointers(cpu); + +#ifndef CONFIG_USER_ONLY + CPULoongArchState *env = &cpu->env; qdev_init_gpio_in(DEVICE(cpu), loongarch_cpu_set_irq, N_IRQS); timer_init_ns(&cpu->timer, QEMU_CLOCK_VIRTUAL, &loongarch_constant_timer_cb, cpu); @@ -548,6 +560,7 @@ static void loongarch_cpu_init(Object *obj) memory_region_init_io(&env->iocsr_mem, OBJECT(cpu), &loongarch_qemu_ops, NULL, "iocsr_misc", 0x428); memory_region_add_subregion(&env->system_iocsr, 0, &env->iocsr_mem); +#endif } static ObjectClass *loongarch_cpu_class_by_name(const char *cpu_model) @@ -615,18 +628,22 @@ static struct TCGCPUOps loongarch_tcg_ops = { .initialize = loongarch_translate_init, .synchronize_from_tb = loongarch_cpu_synchronize_from_tb, +#ifndef CONFIG_USER_ONLY .tlb_fill = loongarch_cpu_tlb_fill, .cpu_exec_interrupt = loongarch_cpu_exec_interrupt, .do_interrupt = loongarch_cpu_do_interrupt, .do_transaction_failed = loongarch_cpu_do_transaction_failed, +#endif }; #endif /* CONFIG_TCG */ +#ifndef CONFIG_USER_ONLY #include "hw/core/sysemu-cpu-ops.h" static const struct SysemuCPUOps loongarch_sysemu_ops = { .get_phys_page_debug = loongarch_cpu_get_phys_page_debug, }; +#endif static void loongarch_cpu_class_init(ObjectClass *c, void *data) { @@ -642,8 +659,10 @@ static void loongarch_cpu_class_init(ObjectClass *c, void *data) cc->has_work = loongarch_cpu_has_work; cc->dump_state = loongarch_cpu_dump_state; cc->set_pc = loongarch_cpu_set_pc; +#ifndef CONFIG_USER_ONLY dc->vmsd = &vmstate_loongarch_cpu; cc->sysemu_ops = &loongarch_sysemu_ops; +#endif cc->disas_set_info = loongarch_cpu_disas_set_info; cc->gdb_read_register = loongarch_cpu_gdb_read_register; cc->gdb_write_register = loongarch_cpu_gdb_write_register; diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index 4b4fbcdc71..d141ec9b5d 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -301,6 +301,7 @@ typedef struct CPUArchState { uint64_t CSR_DERA; uint64_t CSR_DSAVE; +#ifndef CONFIG_USER_ONLY LoongArchTLB tlb[LOONGARCH_TLB_MAX]; AddressSpace address_space_iocsr; @@ -308,6 +309,7 @@ typedef struct CPUArchState { MemoryRegion iocsr_mem; bool load_elf; uint64_t elf_address; +#endif } CPULoongArchState; /** @@ -358,12 +360,16 @@ struct LoongArchCPUClass { static inline int cpu_mmu_index(CPULoongArchState *env, bool ifetch) { +#ifdef CONFIG_USER_ONLY + return MMU_USER_IDX; +#else uint8_t pg = FIELD_EX64(env->CSR_CRMD, CSR_CRMD, PG); if (!pg) { return MMU_DA_IDX; } return FIELD_EX64(env->CSR_CRMD, CSR_CRMD, PLV); +#endif } static inline void cpu_get_tb_cpu_state(CPULoongArchState *env, diff --git a/target/loongarch/helper.h b/target/loongarch/helper.h index 85c11a60d4..cbbe008f32 100644 --- a/target/loongarch/helper.h +++ b/target/loongarch/helper.h @@ -95,6 +95,7 @@ DEF_HELPER_FLAGS_2(set_rounding_mode, TCG_CALL_NO_RWG, void, env, i32) DEF_HELPER_1(rdtime_d, i64, env) +#ifndef CONFIG_USER_ONLY /* CSRs helper */ DEF_HELPER_1(csrrd_pgd, i64, env) DEF_HELPER_1(csrrd_tval, i64, env) @@ -128,3 +129,4 @@ DEF_HELPER_4(lddir, tl, env, tl, tl, i32) DEF_HELPER_4(ldpte, void, env, tl, tl, i32) DEF_HELPER_1(ertn, void, env) DEF_HELPER_1(idle, void, env) +#endif diff --git a/target/loongarch/insn_trans/trans_privileged.c.inc b/target/loongarch/insn_trans/trans_privileged.c.inc index 53596c4f77..9c4dcbfcfb 100644 --- a/target/loongarch/insn_trans/trans_privileged.c.inc +++ b/target/loongarch/insn_trans/trans_privileged.c.inc @@ -7,6 +7,41 @@ #include "cpu-csr.h" +#ifdef CONFIG_USER_ONLY + +#define GEN_FALSE_TRANS(name) \ +static bool trans_##name(DisasContext *ctx, arg_##name * a) \ +{ \ + return false; \ +} + +GEN_FALSE_TRANS(csrrd) +GEN_FALSE_TRANS(csrwr) +GEN_FALSE_TRANS(csrxchg) +GEN_FALSE_TRANS(iocsrrd_b) +GEN_FALSE_TRANS(iocsrrd_h) +GEN_FALSE_TRANS(iocsrrd_w) +GEN_FALSE_TRANS(iocsrrd_d) +GEN_FALSE_TRANS(iocsrwr_b) +GEN_FALSE_TRANS(iocsrwr_h) +GEN_FALSE_TRANS(iocsrwr_w) +GEN_FALSE_TRANS(iocsrwr_d) +GEN_FALSE_TRANS(tlbsrch) +GEN_FALSE_TRANS(tlbrd) +GEN_FALSE_TRANS(tlbwr) +GEN_FALSE_TRANS(tlbfill) +GEN_FALSE_TRANS(tlbclr) +GEN_FALSE_TRANS(tlbflush) +GEN_FALSE_TRANS(invtlb) +GEN_FALSE_TRANS(cacop) +GEN_FALSE_TRANS(ldpte) +GEN_FALSE_TRANS(lddir) +GEN_FALSE_TRANS(ertn) +GEN_FALSE_TRANS(dbcl) +GEN_FALSE_TRANS(idle) + +#else + typedef void (*GenCSRRead)(TCGv dest, TCGv_ptr env); typedef void (*GenCSRWrite)(TCGv dest, TCGv_ptr env, TCGv src); @@ -464,3 +499,4 @@ static bool trans_idle(DisasContext *ctx, arg_idle *a) ctx->base.is_jmp = DISAS_NORETURN; return true; } +#endif diff --git a/target/loongarch/internals.h b/target/loongarch/internals.h index 9d50fbdd81..ea227362b6 100644 --- a/target/loongarch/internals.h +++ b/target/loongarch/internals.h @@ -33,6 +33,7 @@ const char *loongarch_exception_name(int32_t exception); void restore_fp_status(CPULoongArchState *env); +#ifndef CONFIG_USER_ONLY extern const VMStateDescription vmstate_loongarch_cpu; void loongarch_cpu_set_irq(void *opaque, int irq, int level); @@ -48,6 +49,7 @@ bool loongarch_cpu_tlb_fill(CPUState *cs, vaddr address, int size, bool probe, uintptr_t retaddr); hwaddr loongarch_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); +#endif /* !CONFIG_USER_ONLY */ int loongarch_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n); int loongarch_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n); diff --git a/target/loongarch/op_helper.c b/target/loongarch/op_helper.c index df049cec59..4b429b6699 100644 --- a/target/loongarch/op_helper.c +++ b/target/loongarch/op_helper.c @@ -86,6 +86,9 @@ target_ulong helper_cpucfg(CPULoongArchState *env, target_ulong rj) uint64_t helper_rdtime_d(CPULoongArchState *env) { +#ifdef CONFIG_USER_ONLY + return cpu_get_host_ticks(); +#else uint64_t plv; LoongArchCPU *cpu = env_archcpu(env); @@ -95,8 +98,10 @@ uint64_t helper_rdtime_d(CPULoongArchState *env) } return cpu_loongarch_get_constant_timer_counter(cpu); +#endif } +#ifndef CONFIG_USER_ONLY void helper_ertn(CPULoongArchState *env) { uint64_t csr_pplv, csr_pie; @@ -131,3 +136,4 @@ void helper_idle(CPULoongArchState *env) cs->halted = 1; do_raise_exception(env, EXCP_HLT, 0); } +#endif