From patchwork Wed Jan 29 18:34:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksandar Markovic X-Patchwork-Id: 11356687 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DC37414E3 for ; Wed, 29 Jan 2020 18:35:57 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id BD3C920678 for ; Wed, 29 Jan 2020 18:35:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BD3C920678 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=rt-rk.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:50042 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iwsBw-0008B4-UV for patchwork-qemu-devel@patchwork.kernel.org; Wed, 29 Jan 2020 13:35:56 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:55268) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iwsAy-0006Ls-Tt for qemu-devel@nongnu.org; Wed, 29 Jan 2020 13:34:58 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iwsAx-00043V-Bd for qemu-devel@nongnu.org; Wed, 29 Jan 2020 13:34:56 -0500 Received: from mx2.rt-rk.com ([89.216.37.149]:33091 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 1iwsAx-00040a-1B for qemu-devel@nongnu.org; Wed, 29 Jan 2020 13:34:55 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id B3B761A1FB9; Wed, 29 Jan 2020 19:34:51 +0100 (CET) X-Virus-Scanned: amavisd-new at rt-rk.com Received: from rtrkw774-lin.domain.local (rtrkw774-lin.domain.local [10.10.14.106]) by mail.rt-rk.com (Postfix) with ESMTPSA id 97B2D1A1CEF; Wed, 29 Jan 2020 19:34:51 +0100 (CET) From: Aleksandar Markovic To: qemu-devel@nongnu.org Subject: [PULL 5/6] target/mips: Amend CP0 WatchHi register implementation Date: Wed, 29 Jan 2020 19:34:16 +0100 Message-Id: <1580322857-14331-6-git-send-email-aleksandar.markovic@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1580322857-14331-1-git-send-email-aleksandar.markovic@rt-rk.com> References: <1580322857-14331-1-git-send-email-aleksandar.markovic@rt-rk.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 89.216.37.149 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, Yongbok Kim , amarkovic@wavecomp.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Yongbok Kim WatchHi is extended by the field MemoryMapID with the GINVT instruction. The field is accessible by MTHC0/MFHC0 in 32-bit architectures and DMTC0/ DMFC0 in 64-bit architectures. Reviewed-by: Aleksandar Rikalo Signed-off-by: Yongbok Kim Signed-off-by: Aleksandar Markovic Message-Id: <1579883929-1517-4-git-send-email-aleksandar.markovic@rt-rk.com> --- target/mips/cpu.h | 2 +- target/mips/helper.h | 3 +++ target/mips/machine.c | 6 +++--- target/mips/op_helper.c | 23 +++++++++++++++++++++-- target/mips/translate.c | 42 +++++++++++++++++++++++++++++++++++++++++- 5 files changed, 69 insertions(+), 7 deletions(-) diff --git a/target/mips/cpu.h b/target/mips/cpu.h index c218ccc..7cf1b49 100644 --- a/target/mips/cpu.h +++ b/target/mips/cpu.h @@ -961,7 +961,7 @@ struct CPUMIPSState { /* * CP0 Register 19 */ - int32_t CP0_WatchHi[8]; + uint64_t CP0_WatchHi[8]; #define CP0WH_ASID 16 /* * CP0 Register 20 diff --git a/target/mips/helper.h b/target/mips/helper.h index 7b8ad74..5b1f8bb 100644 --- a/target/mips/helper.h +++ b/target/mips/helper.h @@ -78,6 +78,7 @@ DEF_HELPER_1(mfc0_maar, tl, env) DEF_HELPER_1(mfhc0_maar, tl, env) DEF_HELPER_2(mfc0_watchlo, tl, env, i32) DEF_HELPER_2(mfc0_watchhi, tl, env, i32) +DEF_HELPER_2(mfhc0_watchhi, tl, env, i32) DEF_HELPER_1(mfc0_debug, tl, env) DEF_HELPER_1(mftc0_debug, tl, env) #ifdef TARGET_MIPS64 @@ -89,6 +90,7 @@ DEF_HELPER_1(dmfc0_tcschefback, tl, env) DEF_HELPER_1(dmfc0_lladdr, tl, env) DEF_HELPER_1(dmfc0_maar, tl, env) DEF_HELPER_2(dmfc0_watchlo, tl, env, i32) +DEF_HELPER_2(dmfc0_watchhi, tl, env, i32) DEF_HELPER_1(dmfc0_saar, tl, env) #endif /* TARGET_MIPS64 */ @@ -159,6 +161,7 @@ DEF_HELPER_2(mthc0_maar, void, env, tl) DEF_HELPER_2(mtc0_maari, void, env, tl) DEF_HELPER_3(mtc0_watchlo, void, env, tl, i32) DEF_HELPER_3(mtc0_watchhi, void, env, tl, i32) +DEF_HELPER_3(mthc0_watchhi, void, env, tl, i32) DEF_HELPER_2(mtc0_xcontext, void, env, tl) DEF_HELPER_2(mtc0_framemask, void, env, tl) DEF_HELPER_2(mtc0_debug, void, env, tl) diff --git a/target/mips/machine.c b/target/mips/machine.c index c139239..8d5b18b 100644 --- a/target/mips/machine.c +++ b/target/mips/machine.c @@ -212,8 +212,8 @@ const VMStateDescription vmstate_tlb = { const VMStateDescription vmstate_mips_cpu = { .name = "cpu", - .version_id = 18, - .minimum_version_id = 18, + .version_id = 19, + .minimum_version_id = 19, .post_load = cpu_post_load, .fields = (VMStateField[]) { /* Active TC */ @@ -296,7 +296,7 @@ const VMStateDescription vmstate_mips_cpu = { VMSTATE_INT32(env.CP0_MAARI, MIPSCPU), VMSTATE_UINTTL(env.lladdr, MIPSCPU), VMSTATE_UINTTL_ARRAY(env.CP0_WatchLo, MIPSCPU, 8), - VMSTATE_INT32_ARRAY(env.CP0_WatchHi, MIPSCPU, 8), + VMSTATE_UINT64_ARRAY(env.CP0_WatchHi, MIPSCPU, 8), VMSTATE_UINTTL(env.CP0_XContext, MIPSCPU), VMSTATE_INT32(env.CP0_Framemask, MIPSCPU), VMSTATE_INT32(env.CP0_Debug, MIPSCPU), diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c index 79d44da..7425a88 100644 --- a/target/mips/op_helper.c +++ b/target/mips/op_helper.c @@ -945,7 +945,12 @@ target_ulong helper_mfc0_watchlo(CPUMIPSState *env, uint32_t sel) target_ulong helper_mfc0_watchhi(CPUMIPSState *env, uint32_t sel) { - return env->CP0_WatchHi[sel]; + return (int32_t) env->CP0_WatchHi[sel]; +} + +target_ulong helper_mfhc0_watchhi(CPUMIPSState *env, uint32_t sel) +{ + return env->CP0_WatchHi[sel] >> 32; } target_ulong helper_mfc0_debug(CPUMIPSState *env) @@ -1016,6 +1021,11 @@ target_ulong helper_dmfc0_watchlo(CPUMIPSState *env, uint32_t sel) return env->CP0_WatchLo[sel]; } +target_ulong helper_dmfc0_watchhi(CPUMIPSState *env, uint32_t sel) +{ + return env->CP0_WatchHi[sel]; +} + target_ulong helper_dmfc0_saar(CPUMIPSState *env) { if ((env->CP0_SAARI & 0x3f) < 2) { @@ -1869,11 +1879,20 @@ void helper_mtc0_watchlo(CPUMIPSState *env, target_ulong arg1, uint32_t sel) void helper_mtc0_watchhi(CPUMIPSState *env, target_ulong arg1, uint32_t sel) { - int mask = 0x40000FF8 | (env->CP0_EntryHi_ASID_mask << CP0WH_ASID); + uint64_t mask = 0x40000FF8 | (env->CP0_EntryHi_ASID_mask << CP0WH_ASID); + if ((env->CP0_Config5 >> CP0C5_MI) & 1) { + mask |= 0xFFFFFFFF00000000ULL; /* MMID */ + } env->CP0_WatchHi[sel] = arg1 & mask; env->CP0_WatchHi[sel] &= ~(env->CP0_WatchHi[sel] & arg1 & 0x7); } +void helper_mthc0_watchhi(CPUMIPSState *env, target_ulong arg1, uint32_t sel) +{ + env->CP0_WatchHi[sel] = ((uint64_t) (arg1) << 32) | + (env->CP0_WatchHi[sel] & 0x00000000ffffffffULL); +} + void helper_mtc0_xcontext(CPUMIPSState *env, target_ulong arg1) { target_ulong mask = (1ULL << (env->SEGBITS - 7)) - 1; diff --git a/target/mips/translate.c b/target/mips/translate.c index efe75e6..d51330c 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -2547,6 +2547,7 @@ typedef struct DisasContext { bool nan2008; bool abs2008; bool saar; + bool mi; } DisasContext; #define DISAS_STOP DISAS_TARGET_0 @@ -6783,6 +6784,25 @@ static void gen_mfhc0(DisasContext *ctx, TCGv arg, int reg, int sel) goto cp0_unimplemented; } break; + case CP0_REGISTER_19: + switch (sel) { + case CP0_REG19__WATCHHI0: + case CP0_REG19__WATCHHI1: + case CP0_REG19__WATCHHI2: + case CP0_REG19__WATCHHI3: + case CP0_REG19__WATCHHI4: + case CP0_REG19__WATCHHI5: + case CP0_REG19__WATCHHI6: + case CP0_REG19__WATCHHI7: + /* upper 32 bits are only available when Config5MI != 0 */ + CP0_CHECK(ctx->mi); + gen_mfhc0_load64(arg, offsetof(CPUMIPSState, CP0_WatchHi[sel]), 0); + register_name = "WatchHi"; + break; + default: + goto cp0_unimplemented; + } + break; case CP0_REGISTER_28: switch (sel) { case 0: @@ -6869,6 +6889,25 @@ static void gen_mthc0(DisasContext *ctx, TCGv arg, int reg, int sel) goto cp0_unimplemented; } break; + case CP0_REGISTER_19: + switch (sel) { + case CP0_REG19__WATCHHI0: + case CP0_REG19__WATCHHI1: + case CP0_REG19__WATCHHI2: + case CP0_REG19__WATCHHI3: + case CP0_REG19__WATCHHI4: + case CP0_REG19__WATCHHI5: + case CP0_REG19__WATCHHI6: + case CP0_REG19__WATCHHI7: + /* upper 32 bits are only available when Config5MI != 0 */ + CP0_CHECK(ctx->mi); + gen_helper_0e1i(mthc0_watchhi, arg, sel); + register_name = "WatchHi"; + break; + default: + goto cp0_unimplemented; + } + break; case CP0_REGISTER_28: switch (sel) { case 0: @@ -8922,7 +8961,7 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel) case CP0_REG19__WATCHHI6: case CP0_REG19__WATCHHI7: CP0_CHECK(ctx->CP0_Config1 & (1 << CP0C1_WR)); - gen_helper_1e0i(mfc0_watchhi, arg, sel); + gen_helper_1e0i(dmfc0_watchhi, arg, sel); register_name = "WatchHi"; break; default: @@ -30727,6 +30766,7 @@ static void mips_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) ctx->mrp = (env->CP0_Config5 >> CP0C5_MRP) & 1; ctx->nan2008 = (env->active_fpu.fcr31 >> FCR31_NAN2008) & 1; ctx->abs2008 = (env->active_fpu.fcr31 >> FCR31_ABS2008) & 1; + ctx->mi = (env->CP0_Config5 >> CP0C5_MI) & 1; restore_cpu_state(env, ctx); #ifdef CONFIG_USER_ONLY ctx->mem_idx = MIPS_HFLAG_UM;