From patchwork Fri Aug 17 14:03:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksandar Markovic X-Patchwork-Id: 958864 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=rt-rk.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41sQZ60l8mz9s8k for ; Sat, 18 Aug 2018 00:29:18 +1000 (AEST) Received: from localhost ([::1]:34363 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fqfkZ-00015K-JU for incoming@patchwork.ozlabs.org; Fri, 17 Aug 2018 10:29:15 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52849) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fqfMe-0004nN-GM for qemu-devel@nongnu.org; Fri, 17 Aug 2018 10:04:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fqfMV-0007V6-9A for qemu-devel@nongnu.org; Fri, 17 Aug 2018 10:04:31 -0400 Received: from mx2.rt-rk.com ([89.216.37.149]:44349 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fqfMU-0007S1-LX for qemu-devel@nongnu.org; Fri, 17 Aug 2018 10:04:23 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id D67491A2410; Fri, 17 Aug 2018 16:04:18 +0200 (CEST) X-Virus-Scanned: amavisd-new at rt-rk.com Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.13.43]) by mail.rt-rk.com (Postfix) with ESMTPSA id 91E451A2414; Fri, 17 Aug 2018 16:04:18 +0200 (CEST) From: Aleksandar Markovic To: qemu-devel@nongnu.org Date: Fri, 17 Aug 2018 16:03:10 +0200 Message-Id: <1534514633-13725-23-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1534514633-13725-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1534514633-13725-1-git-send-email-aleksandar.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 89.216.37.149 Subject: [Qemu-devel] [PATCH v10 22/65] target/mips: Add emulation of nanoMIPS 32-bit load and store instructions X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, pburton@wavecomp.com, smarkovic@wavecomp.com, riku.voipio@iki.fi, richard.henderson@linaro.org, laurent@vivier.eu, philippe.mathieu.daude@gmail.com, amarkovic@wavecomp.com, pjovanovic@wavecomp.com, aurelien@aurel32.net Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Yongbok Kim Add emulation of various nanoMIPS load and store instructions. Reviewed-by: Richard Henderson Reviewed-by: Aleksandar Markovic Signed-off-by: Yongbok Kim Signed-off-by: Aleksandar Markovic Signed-off-by: Stefan Markovic --- target/mips/translate.c | 277 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 277 insertions(+) diff --git a/target/mips/translate.c b/target/mips/translate.c index 2eccc89..de1e85d 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -17903,10 +17903,287 @@ static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx) } break; case NM_P_GP_BH: + { + uint32_t u = extract32(ctx->opcode, 0, 18); + + switch (extract32(ctx->opcode, 18, 3)) { + case NM_LBGP: + gen_ld(ctx, OPC_LB, rt, 28, u); + break; + case NM_SBGP: + gen_st(ctx, OPC_SB, rt, 28, u); + break; + case NM_LBUGP: + gen_ld(ctx, OPC_LBU, rt, 28, u); + break; + case NM_ADDIUGP_B: + if (rt != 0) { + gen_op_addr_addi(ctx, cpu_gpr[rt], cpu_gpr[28], u); + } + break; + case NM_P_GP_LH: + u &= ~1; + switch (ctx->opcode & 1) { + case NM_LHGP: + gen_ld(ctx, OPC_LH, rt, 28, u); + break; + case NM_LHUGP: + gen_ld(ctx, OPC_LHU, rt, 28, u); + break; + } + break; + case NM_P_GP_SH: + u &= ~1; + switch (ctx->opcode & 1) { + case NM_SHGP: + gen_st(ctx, OPC_SH, rt, 28, u); + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } + break; + case NM_P_GP_CP1: + u &= ~0x3; + switch (ctx->opcode & 0x3) { + case NM_LWC1GP: + gen_cop1_ldst(ctx, OPC_LWC1, rt, 28, u); + break; + case NM_LDC1GP: + gen_cop1_ldst(ctx, OPC_LDC1, rt, 28, u); + break; + case NM_SWC1GP: + gen_cop1_ldst(ctx, OPC_SWC1, rt, 28, u); + break; + case NM_SDC1GP: + gen_cop1_ldst(ctx, OPC_SDC1, rt, 28, u); + break; + } + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } + } break; case NM_P_LS_U12: + { + uint32_t u = extract32(ctx->opcode, 0, 12); + + switch (extract32(ctx->opcode, 12, 4)) { + case NM_P_PREFU12: + if (rt == 31) { + /* SYNCI */ + /* Break the TB to be able to sync copied instructions + immediately */ + ctx->base.is_jmp = DISAS_STOP; + } else { + /* PREF */ + /* Treat as NOP. */ + } + break; + case NM_LB: + gen_ld(ctx, OPC_LB, rt, rs, u); + break; + case NM_LH: + gen_ld(ctx, OPC_LH, rt, rs, u); + break; + case NM_LW: + gen_ld(ctx, OPC_LW, rt, rs, u); + break; + case NM_LBU: + gen_ld(ctx, OPC_LBU, rt, rs, u); + break; + case NM_LHU: + gen_ld(ctx, OPC_LHU, rt, rs, u); + break; + case NM_SB: + gen_st(ctx, OPC_SB, rt, rs, u); + break; + case NM_SH: + gen_st(ctx, OPC_SH, rt, rs, u); + break; + case NM_SW: + gen_st(ctx, OPC_SW, rt, rs, u); + break; + case NM_LWC1: + gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, u); + break; + case NM_LDC1: + gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, u); + break; + case NM_SWC1: + gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, u); + break; + case NM_SDC1: + gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, u); + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } + } break; case NM_P_LS_S9: + { + int32_t s = (sextract32(ctx->opcode, 15, 1) << 8) | + extract32(ctx->opcode, 0, 8); + + switch (extract32(ctx->opcode, 8, 3)) { + case NM_P_LS_S0: + switch (extract32(ctx->opcode, 11, 4)) { + case NM_LBS9: + gen_ld(ctx, OPC_LB, rt, rs, s); + break; + case NM_LHS9: + gen_ld(ctx, OPC_LH, rt, rs, s); + break; + case NM_LWS9: + gen_ld(ctx, OPC_LW, rt, rs, s); + break; + case NM_LBUS9: + gen_ld(ctx, OPC_LBU, rt, rs, s); + break; + case NM_LHUS9: + gen_ld(ctx, OPC_LHU, rt, rs, s); + break; + case NM_SBS9: + gen_st(ctx, OPC_SB, rt, rs, s); + break; + case NM_SHS9: + gen_st(ctx, OPC_SH, rt, rs, s); + break; + case NM_SWS9: + gen_st(ctx, OPC_SW, rt, rs, s); + break; + case NM_LWC1S9: + gen_cop1_ldst(ctx, OPC_LWC1, rt, rs, s); + break; + case NM_LDC1S9: + gen_cop1_ldst(ctx, OPC_LDC1, rt, rs, s); + break; + case NM_SWC1S9: + gen_cop1_ldst(ctx, OPC_SWC1, rt, rs, s); + break; + case NM_SDC1S9: + gen_cop1_ldst(ctx, OPC_SDC1, rt, rs, s); + break; + case NM_P_PREFS9: + if (rt == 31) { + /* SYNCI */ + /* Break the TB to be able to sync copied instructions + immediately */ + ctx->base.is_jmp = DISAS_STOP; + } else { + /* PREF */ + /* Treat as NOP. */ + } + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } + break; + case NM_P_LS_S1: + switch (extract32(ctx->opcode, 11, 4)) { + case NM_UALH: + case NM_UASH: + { + TCGv t0 = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); + + gen_base_offset_addr(ctx, t0, rs, s); + + switch (extract32(ctx->opcode, 11, 4)) { + case NM_UALH: + tcg_gen_qemu_ld_tl(t0, t0, ctx->mem_idx, MO_TESW | + MO_UNALN); + gen_store_gpr(t0, rt); + break; + case NM_UASH: + gen_load_gpr(t1, rt); + tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, MO_TEUW | + MO_UNALN); + break; + } + tcg_temp_free(t0); + tcg_temp_free(t1); + } + break; + case NM_P_LL: + switch (ctx->opcode & 0x03) { + case NM_LL: + gen_ld(ctx, OPC_LL, rt, rs, s); + break; + case NM_LLWP: + break; + } + break; + case NM_P_SC: + switch (ctx->opcode & 0x03) { + case NM_SC: + gen_st_cond(ctx, OPC_SC, rt, rs, s); + break; + case NM_SCWP: + break; + } + break; + case NM_CACHE: + check_cp0_enabled(ctx); + if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) { + gen_cache_operation(ctx, rt, rs, s); + } + break; + } + break; + case NM_P_LS_WM: + case NM_P_LS_UAWM: + { + int count = extract32(ctx->opcode, 12, 3); + int counter = 0; + + offset = sextract32(ctx->opcode, 15, 1) << 8 | + extract32(ctx->opcode, 0, 8); + TCGv va = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); + TCGMemOp memop = (extract32(ctx->opcode, 8, 3)) == + NM_P_LS_UAWM ? MO_UNALN : 0; + + count = (count == 0) ? 8 : count; + while (counter != count) { + int this_rt = ((rt + counter) & 0x1f) | (rt & 0x10); + int this_offset = offset + (counter << 2); + + gen_base_offset_addr(ctx, va, rs, this_offset); + + switch (extract32(ctx->opcode, 11, 1)) { + case NM_LWM: + tcg_gen_qemu_ld_tl(t1, va, ctx->mem_idx, + memop | MO_TESL); + gen_store_gpr(t1, this_rt); + if ((this_rt == rs) && + (counter != (count - 1))) { + /* UNPREDICTABLE */ + } + break; + case NM_SWM: + this_rt = (rt == 0) ? 0 : this_rt; + gen_load_gpr(t1, this_rt); + tcg_gen_qemu_st_tl(t1, va, ctx->mem_idx, + memop | MO_TEUL); + break; + } + counter++; + } + tcg_temp_free(va); + tcg_temp_free(t1); + } + break; + default: + generate_exception_end(ctx, EXCP_RI); + break; + } + } break; case NM_MOVE_BALC: break;