From patchwork Tue Apr 23 22:31:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: BALATON Zoltan X-Patchwork-Id: 13640777 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 00996C10F15 for ; Tue, 23 Apr 2024 22:34:13 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rzOfz-0001IG-3i; Tue, 23 Apr 2024 18:31:47 -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 1rzOfp-0001Bi-MS; Tue, 23 Apr 2024 18:31:38 -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 1rzOfn-0004en-Tr; Tue, 23 Apr 2024 18:31:37 -0400 Received: from zero.eik.bme.hu (localhost [127.0.0.1]) by zero.eik.bme.hu (Postfix) with ESMTP id A998B4E603D; Wed, 24 Apr 2024 00:31:33 +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 t9O8ENAnXjn6; Wed, 24 Apr 2024 00:31:31 +0200 (CEST) Received: by zero.eik.bme.hu (Postfix, from userid 432) id B8CFD4E6042; Wed, 24 Apr 2024 00:31:31 +0200 (CEST) Message-Id: In-Reply-To: References: From: BALATON Zoltan Subject: [PATCH 20/24] target/ppc: Remove ppc_hash32_pp_prot() and reuse common function MIME-Version: 1.0 To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Cc: Nicholas Piggin , Daniel Henrique Barboza Date: Wed, 24 Apr 2024 00:31:31 +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. Rename the latter to ppc_pte_prot() and merge with ppc_hash32_pp_prot() to remove duplicated code. Signed-off-by: BALATON Zoltan --- target/ppc/internal.h | 2 +- target/ppc/mmu-hash32.c | 47 +---------------------------------------- target/ppc/mmu_common.c | 19 +++++++++-------- 3 files changed, 12 insertions(+), 56 deletions(-) diff --git a/target/ppc/internal.h b/target/ppc/internal.h index b835b2cba0..2d95d406f6 100644 --- a/target/ppc/internal.h +++ b/target/ppc/internal.h @@ -254,7 +254,7 @@ static inline int prot_for_access_type(MMUAccessType access_type) #ifndef CONFIG_USER_ONLY /* PowerPC MMU emulation */ - +int ppc_pte_prot(int key, int pp, int nx); bool ppc_xlate(PowerPCCPU *cpu, vaddr eaddr, MMUAccessType access_type, hwaddr *raddrp, int *psizep, int *protp, int mmu_idx, bool guest_visible); diff --git a/target/ppc/mmu-hash32.c b/target/ppc/mmu-hash32.c index 3976416840..ee9df351ae 100644 --- a/target/ppc/mmu-hash32.c +++ b/target/ppc/mmu-hash32.c @@ -42,51 +42,6 @@ struct mmu_ctx_hash32 { int key; /* Access key */ }; -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) { @@ -95,7 +50,7 @@ static int ppc_hash32_pte_prot(int mmu_idx, key = !!(mmuidx_pr(mmu_idx) ? (sr & SR32_KP) : (sr & SR32_KS)); pp = pte.pte1 & HPTE32_R_PP; - return ppc_hash32_pp_prot(key, pp, !!(sr & SR32_NX)); + return ppc_pte_prot(key, pp, !!(sr & SR32_NX)); } static target_ulong hash32_bat_size(int mmu_idx, diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c index 244830c196..ca1cbba0f0 100644 --- a/target/ppc/mmu_common.c +++ b/target/ppc/mmu_common.c @@ -75,22 +75,23 @@ void ppc_store_sdr1(CPUPPCState *env, target_ulong value) /*****************************************************************************/ /* PowerPC MMU emulation */ -static int pp_check(int key, int pp, int nx) +int ppc_pte_prot(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 */ + access = PAGE_READ | PAGE_WRITE; + break; case 0x3: - access |= PAGE_READ; + access = PAGE_READ; break; + default: + g_assert_not_reached(); } } else { switch (pp) { @@ -104,6 +105,8 @@ static int pp_check(int key, int pp, int nx) case 0x2: access = PAGE_READ | PAGE_WRITE; break; + default: + g_assert_not_reached(); } } if (nx == 0) { @@ -140,7 +143,7 @@ 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 */ @@ -159,11 +162,9 @@ 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_pte_prot(ctx->key, pp, ctx->nx); ret = check_prot(ctx->prot, access_type); if (ret == 0) { /* Access granted */