From patchwork Tue Aug 13 13:53:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 13762078 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 D9DACC52D7C for ; Tue, 13 Aug 2024 13:54:35 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sdry9-0002ro-5V; Tue, 13 Aug 2024 09:53:49 -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 1sdry6-0002r2-Rc for qemu-devel@nongnu.org; Tue, 13 Aug 2024 09:53:47 -0400 Received: from mail-ed1-x536.google.com ([2a00:1450:4864:20::536]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sdry3-0007pl-Qm for qemu-devel@nongnu.org; Tue, 13 Aug 2024 09:53:46 -0400 Received: by mail-ed1-x536.google.com with SMTP id 4fb4d7f45d1cf-5bb85e90ad5so4722835a12.3 for ; Tue, 13 Aug 2024 06:53:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1723557222; x=1724162022; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Ocxt7oZAAz9BMDOpj25prag5V4EF45wznl+mYkNEXLQ=; b=mJTlmzeq+gmq2j97MuOZJh+zBpKWjhLiNzef+qTdG+EdLwQA+9rF6N1F/EdRqp1ouJ 9fN0yeMu4snJSgAv7rhDXBf7zz7VIfL4aIkqg/va1irGXj15iZXGR9qOSV04LDs2JwyX LrHJ2/4U5/9QrSUV1aNE4tsRNDa7R32bQSmiFlbcy3VqUf1DOx7+8PXy6BXZr2TFb1fZ Z+nyr9Z2onTX+1lSe/2Iji1Bx+00vihxtHmHnPwWKhIiDHuBryObZHbIGk9ydNGRyvot ByhMg01TULjUr5WVzZiNnv0hbSfqH5IoU9B7TotWDzPbBH/OUBy0gnwOdSIkh1oj/Wb8 mdGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723557222; x=1724162022; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Ocxt7oZAAz9BMDOpj25prag5V4EF45wznl+mYkNEXLQ=; b=h0JomGGc3iAiAzKobg/Fs7rxo87AhMoe69PNC5/Dw+vUP6EyEco1FW8CChxoxC2wAy 8JPtiXPVpVCgDY4a12Sh2EXltc0186CwE/PUMHCYVqAe8fDld2l1Gbs/LTS7QuHii/MA Cq/5TPxJ2L5EHpMfyyRTfNNseVIunavbEFmxh4r3wD8hZ/3TbglnAt+bhewNH1gBC8ee fx8kzTLxChYsO5jyHqnihw80NIqDy8as0pVRvkanCCeGGXLgW3fQy+Q7yCel4S62B8++ QGMAgRXUlNoO2GrKd857NSTZJCE47i5qbeHl3qFPvxrN0OLmtHYnEsiQnV/or79BcP2r kRQA== X-Gm-Message-State: AOJu0YzexlYoFWUF4bsqSVU8lX+sL4FcDZkE02Bjv4lAmRd/BsElSWD+ LQFrw7bKtuNUuf/OUfcazyTDZN3uStGr7TyWmsajsUhKh+PSAsjNAx4QaEixcsWyzonXD3/Lp1d fVjI= X-Google-Smtp-Source: AGHT+IEmGvhgzkWQ8bhvRu4JnXLWhc5la+/XdvrQFgzetqkZHg4LJz9nd027Fg6qqauT8sIUfLTYzA== X-Received: by 2002:a17:907:3f8b:b0:a7d:a008:abca with SMTP id a640c23a62f3a-a80ed2d6162mr264486466b.56.1723557221635; Tue, 13 Aug 2024 06:53:41 -0700 (PDT) Received: from m1x-phil.lan ([176.176.129.17]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a80f3f49748sm71127266b.4.2024.08.13.06.53.33 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 13 Aug 2024 06:53:41 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Petazzoni , Richard Henderson , Aleksandar Rikalo , Waldemar Brodkorb , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Aurelien Jarno , Jiaxun Yang Subject: [PATCH-for-9.1 v3 1/2] target/mips: Pass page table entry size as MemOp to get_pte() Date: Tue, 13 Aug 2024 15:53:12 +0200 Message-ID: <20240813135313.96519-2-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240813135313.96519-1-philmd@linaro.org> References: <20240813135313.96519-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::536; envelope-from=philmd@linaro.org; helo=mail-ed1-x536.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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-bounces+qemu-devel=archiver.kernel.org@nongnu.org In order to simplify the next commit, pass the PTE size as MemOp. Rename: native_shift -> native_op directory_shift -> directory_mop leaf_shift -> leaf_mop Suggested-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson --- target/mips/tcg/sysemu/tlb_helper.c | 59 +++++++++++++---------------- 1 file changed, 27 insertions(+), 32 deletions(-) diff --git a/target/mips/tcg/sysemu/tlb_helper.c b/target/mips/tcg/sysemu/tlb_helper.c index 3ba6d369a6..75a26131ca 100644 --- a/target/mips/tcg/sysemu/tlb_helper.c +++ b/target/mips/tcg/sysemu/tlb_helper.c @@ -592,13 +592,13 @@ static void raise_mmu_exception(CPUMIPSState *env, target_ulong address, * resulting in a TLB or XTLB Refill exception. */ -static bool get_pte(CPUMIPSState *env, uint64_t vaddr, int entry_size, +static bool get_pte(CPUMIPSState *env, uint64_t vaddr, MemOp op, uint64_t *pte) { - if ((vaddr & ((entry_size >> 3) - 1)) != 0) { + if ((vaddr & (memop_size(op) - 1)) != 0) { return false; } - if (entry_size == 64) { + if (op == MO_64) { *pte = cpu_ldq_code(env, vaddr); } else { *pte = cpu_ldl_code(env, vaddr); @@ -607,11 +607,11 @@ static bool get_pte(CPUMIPSState *env, uint64_t vaddr, int entry_size, } static uint64_t get_tlb_entry_layout(CPUMIPSState *env, uint64_t entry, - int entry_size, int ptei) + MemOp op, int ptei) { uint64_t result = entry; uint64_t rixi; - if (ptei > entry_size) { + if (ptei > memop_size(op)) { ptei -= 32; } result >>= (ptei - 2); @@ -624,14 +624,12 @@ static uint64_t get_tlb_entry_layout(CPUMIPSState *env, uint64_t entry, static int walk_directory(CPUMIPSState *env, uint64_t *vaddr, int directory_index, bool *huge_page, bool *hgpg_directory_hit, uint64_t *pw_entrylo0, uint64_t *pw_entrylo1, - unsigned directory_shift, unsigned leaf_shift, int ptw_mmu_idx) + MemOp directory_mop, MemOp leaf_mop, int ptw_mmu_idx) { int dph = (env->CP0_PWCtl >> CP0PC_DPH) & 0x1; int psn = (env->CP0_PWCtl >> CP0PC_PSN) & 0x3F; int hugepg = (env->CP0_PWCtl >> CP0PC_HUGEPG) & 0x1; int pf_ptew = (env->CP0_PWField >> CP0PF_PTEW) & 0x3F; - uint32_t direntry_size = 1 << (directory_shift + 3); - uint32_t leafentry_size = 1 << (leaf_shift + 3); uint64_t entry; uint64_t paddr; int prot; @@ -643,14 +641,14 @@ static int walk_directory(CPUMIPSState *env, uint64_t *vaddr, /* wrong base address */ return 0; } - if (!get_pte(env, *vaddr, direntry_size, &entry)) { + if (!get_pte(env, *vaddr, directory_mop, &entry)) { return 0; } if ((entry & (1 << psn)) && hugepg) { *huge_page = true; *hgpg_directory_hit = true; - entry = get_tlb_entry_layout(env, entry, leafentry_size, pf_ptew); + entry = get_tlb_entry_layout(env, entry, leaf_mop, pf_ptew); w = directory_index - 1; if (directory_index & 0x1) { /* Generate adjacent page from same PTE for odd TLB page */ @@ -658,7 +656,7 @@ static int walk_directory(CPUMIPSState *env, uint64_t *vaddr, *pw_entrylo0 = entry & ~lsb; /* even page */ *pw_entrylo1 = entry | lsb; /* odd page */ } else if (dph) { - int oddpagebit = 1 << leaf_shift; + int oddpagebit = 1 << leaf_mop; uint64_t vaddr2 = *vaddr ^ oddpagebit; if (*vaddr & oddpagebit) { *pw_entrylo1 = entry; @@ -669,10 +667,10 @@ static int walk_directory(CPUMIPSState *env, uint64_t *vaddr, ptw_mmu_idx) != TLBRET_MATCH) { return 0; } - if (!get_pte(env, vaddr2, leafentry_size, &entry)) { + if (!get_pte(env, vaddr2, leaf_mop, &entry)) { return 0; } - entry = get_tlb_entry_layout(env, entry, leafentry_size, pf_ptew); + entry = get_tlb_entry_layout(env, entry, leaf_mop, pf_ptew); if (*vaddr & oddpagebit) { *pw_entrylo0 = entry; } else { @@ -711,7 +709,7 @@ static bool page_table_walk_refill(CPUMIPSState *env, vaddr address, /* Native pointer size */ /*For the 32-bit architectures, this bit is fixed to 0.*/ - int native_shift = (((env->CP0_PWSize >> CP0PS_PS) & 1) == 0) ? 2 : 3; + MemOp native_op = (((env->CP0_PWSize >> CP0PS_PS) & 1) == 0) ? MO_32 : MO_64; /* Indices from PWField */ int pf_gdw = (env->CP0_PWField >> CP0PF_GDW) & 0x3F; @@ -728,11 +726,10 @@ static bool page_table_walk_refill(CPUMIPSState *env, vaddr address, /* Other HTW configs */ int hugepg = (env->CP0_PWCtl >> CP0PC_HUGEPG) & 0x1; - unsigned directory_shift, leaf_shift; + MemOp directory_mop, leaf_mop; /* Offsets into tables */ unsigned goffset, uoffset, moffset, ptoffset0, ptoffset1; - uint32_t leafentry_size; /* Starting address - Page Table Base */ uint64_t vaddr = env->CP0_PWBase; @@ -759,23 +756,21 @@ static bool page_table_walk_refill(CPUMIPSState *env, vaddr address, } /* HTW Shift values (depend on entry size) */ - directory_shift = (hugepg && (ptew == 1)) ? native_shift + 1 : native_shift; - leaf_shift = (ptew == 1) ? native_shift + 1 : native_shift; + directory_mop = (hugepg && (ptew == 1)) ? native_op + 1 : native_op; + leaf_mop = (ptew == 1) ? native_op + 1 : native_op; - goffset = gindex << directory_shift; - uoffset = uindex << directory_shift; - moffset = mindex << directory_shift; - ptoffset0 = (ptindex >> 1) << (leaf_shift + 1); - ptoffset1 = ptoffset0 | (1 << (leaf_shift)); - - leafentry_size = 1 << (leaf_shift + 3); + goffset = gindex << directory_mop; + uoffset = uindex << directory_mop; + moffset = mindex << directory_mop; + ptoffset0 = (ptindex >> 1) << (leaf_mop + 1); + ptoffset1 = ptoffset0 | (1 << (leaf_mop)); /* Global Directory */ if (gdw > 0) { vaddr |= goffset; switch (walk_directory(env, &vaddr, pf_gdw, &huge_page, &hgpg_gdhit, &pw_entrylo0, &pw_entrylo1, - directory_shift, leaf_shift, ptw_mmu_idx)) + directory_mop, leaf_mop, ptw_mmu_idx)) { case 0: return false; @@ -792,7 +787,7 @@ static bool page_table_walk_refill(CPUMIPSState *env, vaddr address, vaddr |= uoffset; switch (walk_directory(env, &vaddr, pf_udw, &huge_page, &hgpg_udhit, &pw_entrylo0, &pw_entrylo1, - directory_shift, leaf_shift, ptw_mmu_idx)) + directory_mop, leaf_mop, ptw_mmu_idx)) { case 0: return false; @@ -809,7 +804,7 @@ static bool page_table_walk_refill(CPUMIPSState *env, vaddr address, vaddr |= moffset; switch (walk_directory(env, &vaddr, pf_mdw, &huge_page, &hgpg_mdhit, &pw_entrylo0, &pw_entrylo1, - directory_shift, leaf_shift, ptw_mmu_idx)) + directory_mop, leaf_mop, ptw_mmu_idx)) { case 0: return false; @@ -827,10 +822,10 @@ static bool page_table_walk_refill(CPUMIPSState *env, vaddr address, ptw_mmu_idx) != TLBRET_MATCH) { return false; } - if (!get_pte(env, vaddr, leafentry_size, &dir_entry)) { + if (!get_pte(env, vaddr, leaf_mop, &dir_entry)) { return false; } - dir_entry = get_tlb_entry_layout(env, dir_entry, leafentry_size, pf_ptew); + dir_entry = get_tlb_entry_layout(env, dir_entry, leaf_mop, pf_ptew); pw_entrylo0 = dir_entry; /* Leaf Level Page Table - Second half of PTE pair */ @@ -839,10 +834,10 @@ static bool page_table_walk_refill(CPUMIPSState *env, vaddr address, ptw_mmu_idx) != TLBRET_MATCH) { return false; } - if (!get_pte(env, vaddr, leafentry_size, &dir_entry)) { + if (!get_pte(env, vaddr, leaf_mop, &dir_entry)) { return false; } - dir_entry = get_tlb_entry_layout(env, dir_entry, leafentry_size, pf_ptew); + dir_entry = get_tlb_entry_layout(env, dir_entry, leaf_mop, pf_ptew); pw_entrylo1 = dir_entry; refill: