From patchwork Sat May 11 01:45:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: BALATON Zoltan X-Patchwork-Id: 13662171 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 6C829C25B4F for ; Sat, 11 May 2024 01:48:14 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s5bpf-00074x-AP; Fri, 10 May 2024 21:47:27 -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 1s5boy-0005DD-7a; Fri, 10 May 2024 21:46:46 -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 1s5bom-0003aA-H7; Fri, 10 May 2024 21:46:43 -0400 Received: from zero.eik.bme.hu (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id C77A64E678D; Sat, 11 May 2024 03:46:01 +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 JL55IFdqYqAU; Sat, 11 May 2024 03:45:59 +0200 (CEST) Received: by zero.eik.bme.hu (Postfix, from userid 432) id D7F074E678E; Sat, 11 May 2024 03:45:59 +0200 (CEST) Message-Id: <20dd9f78407fa447c148d2b1184bc009e67705cb.1715390232.git.balaton@eik.bme.hu> In-Reply-To: References: From: BALATON Zoltan Subject: [PATCH v6 20/48] target/ppc: Remove pp_check() and reuse ppc_hash32_pp_prot() MIME-Version: 1.0 To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Nicholas Piggin , Daniel Henrique Barboza Date: Sat, 11 May 2024 03:45:59 +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 The ppc_hash32_pp_prot() function in mmu-hash32.c is the same as pp_check() in mmu_common.c, merge these to remove duplicated code. Define the common function in internal.h as static lnline otherwise exporting the function from mmu-hash32.c would stop the compiler inlining it which results in slightly lower performance. Signed-off-by: BALATON Zoltan Reviewed-by: Nicholas Piggin --- target/ppc/internal.h | 35 ++++++++++++++++++++++++++++++++ target/ppc/mmu-hash32.c | 45 ----------------------------------------- target/ppc/mmu_common.c | 44 ++-------------------------------------- 3 files changed, 37 insertions(+), 87 deletions(-) diff --git a/target/ppc/internal.h b/target/ppc/internal.h index 98b41a970c..ffdf6c075d 100644 --- a/target/ppc/internal.h +++ b/target/ppc/internal.h @@ -256,6 +256,41 @@ static inline int prot_for_access_type(MMUAccessType access_type) #ifndef CONFIG_USER_ONLY /* PowerPC MMU emulation */ +static inline int ppc_hash32_pp_prot(int key, int pp, int nx) +{ + int prot; + + if (key == 0) { + switch (pp) { + case 0x0: + case 0x1: + case 0x2: + prot = PAGE_READ | PAGE_WRITE; + break; + case 0x3: + prot = PAGE_READ; + break; + default: + g_assert_not_reached(); + } + } else { + switch (pp) { + case 0x0: + prot = 0; + break; + case 0x1: + case 0x3: + prot = PAGE_READ; + break; + case 0x2: + prot = PAGE_READ | PAGE_WRITE; + break; + default: + g_assert_not_reached(); + } + } + return nx ? prot : prot | PAGE_EXEC; +} typedef struct mmu_ctx_t mmu_ctx_t; diff --git a/target/ppc/mmu-hash32.c b/target/ppc/mmu-hash32.c index da6e8b293c..21fc731771 100644 --- a/target/ppc/mmu-hash32.c +++ b/target/ppc/mmu-hash32.c @@ -37,51 +37,6 @@ # define LOG_BATS(...) do { } while (0) #endif -static int ppc_hash32_pp_prot(int key, int pp, int nx) -{ - int prot; - - if (key == 0) { - switch (pp) { - case 0x0: - case 0x1: - case 0x2: - prot = PAGE_READ | PAGE_WRITE; - break; - - case 0x3: - prot = PAGE_READ; - break; - - default: - abort(); - } - } else { - switch (pp) { - case 0x0: - prot = 0; - break; - - case 0x1: - case 0x3: - prot = PAGE_READ; - break; - - case 0x2: - prot = PAGE_READ | PAGE_WRITE; - break; - - default: - abort(); - } - } - if (nx == 0) { - prot |= PAGE_EXEC; - } - - return prot; -} - static int ppc_hash32_pte_prot(int mmu_idx, target_ulong sr, ppc_hash_pte32_t pte) { diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c index 004ea2111d..ab082bd12d 100644 --- a/target/ppc/mmu_common.c +++ b/target/ppc/mmu_common.c @@ -65,44 +65,6 @@ void ppc_store_sdr1(CPUPPCState *env, target_ulong value) /*****************************************************************************/ /* PowerPC MMU emulation */ -static int pp_check(int key, int pp, int nx) -{ - int access; - - /* Compute access rights */ - access = 0; - if (key == 0) { - switch (pp) { - case 0x0: - case 0x1: - case 0x2: - access |= PAGE_WRITE; - /* fall through */ - case 0x3: - access |= PAGE_READ; - break; - } - } else { - switch (pp) { - case 0x0: - access = 0; - break; - case 0x1: - case 0x3: - access = PAGE_READ; - break; - case 0x2: - access = PAGE_READ | PAGE_WRITE; - break; - } - } - if (nx == 0) { - access |= PAGE_EXEC; - } - - return access; -} - static int check_prot(int prot, MMUAccessType access_type) { return prot & prot_for_access_type(access_type) ? 0 : -2; @@ -130,7 +92,7 @@ static int ppc6xx_tlb_pte_check(mmu_ctx_t *ctx, target_ulong pte0, MMUAccessType access_type) { target_ulong ptem, mmask; - int access, ret, pteh, ptev, pp; + int ret, pteh, ptev, pp; ret = -1; /* Check validity and table match */ @@ -149,11 +111,9 @@ static int ppc6xx_tlb_pte_check(mmu_ctx_t *ctx, target_ulong pte0, return -3; } } - /* Compute access rights */ - access = pp_check(ctx->key, pp, ctx->nx); /* Keep the matching PTE information */ ctx->raddr = pte1; - ctx->prot = access; + ctx->prot = ppc_hash32_pp_prot(ctx->key, pp, ctx->nx); ret = check_prot(ctx->prot, access_type); if (ret == 0) { /* Access granted */