From patchwork Sat May 11 01:46:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: BALATON Zoltan X-Patchwork-Id: 13662186 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 CBFCEC25B75 for ; Sat, 11 May 2024 01:50:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s5bqN-0001ek-VX; Fri, 10 May 2024 21:48:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s5bpO-0005hw-L3; Fri, 10 May 2024 21:47:11 -0400 Received: from zero.eik.bme.hu ([2001:738:2001:2001::2001]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s5bpG-0003t2-Qr; Fri, 10 May 2024 21:47:10 -0400 Received: from zero.eik.bme.hu (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id 3AA924E6790; Sat, 11 May 2024 03:46:27 +0200 (CEST) X-Virus-Scanned: amavisd-new at eik.bme.hu Received: from zero.eik.bme.hu ([127.0.0.1]) by zero.eik.bme.hu (zero.eik.bme.hu [127.0.0.1]) (amavisd-new, port 10028) with ESMTP id 22RbwertrGL5; Sat, 11 May 2024 03:46:25 +0200 (CEST) Received: by zero.eik.bme.hu (Postfix, from userid 432) id 4C82B4E6791; Sat, 11 May 2024 03:46:25 +0200 (CEST) Message-Id: In-Reply-To: References: From: BALATON Zoltan Subject: [PATCH v6 44/48] target/ppc/mmu_common.c: Remove hash field from mmu_ctx_t MIME-Version: 1.0 To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Nicholas Piggin , Daniel Henrique Barboza Date: Sat, 11 May 2024 03:46:25 +0200 (CEST) Received-SPF: pass client-ip=2001:738:2001:2001::2001; envelope-from=balaton@eik.bme.hu; helo=zero.eik.bme.hu 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_NONE=0.001, SPF_PASS=-0.001 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Return hash value via a parameter and remove it from mmu_ctx.t. Signed-off-by: BALATON Zoltan --- target/ppc/mmu_common.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c index 07c127d673..ccacc70ba6 100644 --- a/target/ppc/mmu_common.c +++ b/target/ppc/mmu_common.c @@ -41,7 +41,6 @@ typedef struct { hwaddr raddr; /* Real address */ int prot; /* Protection bits */ - hwaddr hash[2]; /* Pagetable hash values */ target_ulong ptem; /* Virtual segment ID | API */ int key; /* Access key */ int nx; /* Non-execute area */ @@ -316,7 +315,7 @@ static int get_bat_6xx_tlb(CPUPPCState *env, mmu_ctx_t *ctx, } static int mmu6xx_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx, - target_ulong eaddr, + target_ulong eaddr, hwaddr *hashp, MMUAccessType access_type, int type) { PowerPCCPU *cpu = env_archcpu(env); @@ -364,8 +363,7 @@ static int mmu6xx_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx, qemu_log_mask(CPU_LOG_MMU, "htab_base " HWADDR_FMT_plx " htab_mask " HWADDR_FMT_plx " hash " HWADDR_FMT_plx "\n", ppc_hash32_hpt_base(cpu), ppc_hash32_hpt_mask(cpu), hash); - ctx->hash[0] = hash; - ctx->hash[1] = ~hash; + *hashp = hash; /* Initialize real address with an invalid value */ ctx->raddr = (hwaddr)-1ULL; @@ -746,8 +744,8 @@ static bool ppc_6xx_xlate(PowerPCCPU *cpu, vaddr eaddr, CPUState *cs = CPU(cpu); CPUPPCState *env = &cpu->env; mmu_ctx_t ctx; - int type; - int ret; + hwaddr hash = 0; /* init to 0 to avoid used uninit warning */ + int type, ret; if (ppc_real_mode_xlate(cpu, eaddr, access_type, raddrp, psizep, protp)) { return true; @@ -764,9 +762,8 @@ static bool ppc_6xx_xlate(PowerPCCPU *cpu, vaddr eaddr, } ctx.prot = 0; - ctx.hash[0] = 0; - ctx.hash[1] = 0; - ret = mmu6xx_get_physical_address(env, &ctx, eaddr, access_type, type); + ret = mmu6xx_get_physical_address(env, &ctx, eaddr, &hash, + access_type, type); if (ret == 0) { *raddrp = ctx.raddr; *protp = ctx.prot; @@ -819,9 +816,9 @@ static bool ppc_6xx_xlate(PowerPCCPU *cpu, vaddr eaddr, tlb_miss: env->error_code |= ctx.key << 19; env->spr[SPR_HASH1] = ppc_hash32_hpt_base(cpu) + - get_pteg_offset32(cpu, ctx.hash[0]); + get_pteg_offset32(cpu, hash); env->spr[SPR_HASH2] = ppc_hash32_hpt_base(cpu) + - get_pteg_offset32(cpu, ctx.hash[1]); + get_pteg_offset32(cpu, ~hash); break; case -2: /* Access rights violation */