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[110.175.65.7]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-682227f1838sm87041a12.46.2024.05.23.16.11.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 May 2024 16:11:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1716505880; x=1717110680; 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=ZEWlLb8MSUwetJk+790M+ZhQqJL6mhNi8qXFxdtpSOk=; b=IuTHkm+7/gKmtdNm/rHbS0I5fHhBQq5x1h8Qgj74CLJvD/+t39BHWAR5oKWURYGFXI WImIUji1aT8SPsZ92e+xw2cFb3Pl2e0a/UbieOZiv/0VHaDsSDlGqCitsX6UBzVVfpnh ytFZkLBxSFZijRh2P1R+yOF+IggaP3UDdAj4j9vUMdVu7TOBJtshQ6br+LEg4VRIaaeH OwKOn6TjTWcAbkQRz6CyYsbO6BKTQVAZ+hnELUwcKrcGMHbvQWXR6SE8PwshI1uqJMOP 4y0siYdFBprAg2R80V3WVUjucLV+XkwxXGASltnAnR5wIZ4tEkNtI075Lq8maAcEeGrg kPMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716505880; x=1717110680; 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=ZEWlLb8MSUwetJk+790M+ZhQqJL6mhNi8qXFxdtpSOk=; b=ULXvYTMk+YBD1bDJXgFhjiwHLMtjN7Pw1I3h5nOXKyqJsj3A6J5RzhcqgPyo0Vfiq3 za5tnyOD+PA5dzKUGgXrnRFeYPcYFbYoafMPaJejOqjIX0Y8868aYNG2+ltoI2s0LBjL 66+PjooWsLu9Kf/0fUgGtRQWLLCzK6HWOaZNOYFdgx+03yC4PN94viOYOAGXWIjMAUQ0 HETM6BN8ZVgkTAnCDl02lsyimIlBga/1z5lqpNXvfB9YAb96kvfUeVGmrNx46vP7OtMu LTi3FoB7YsxGdo6matgbBM5WGC1tVOhZT28IjP5aUMsP9qTBH1WA7+P6bZY4cPZql9ET qK0w== X-Forwarded-Encrypted: i=1; AJvYcCW1tBjeoZVfW+V5ZEg1QB2yNpujWb3W6EvYCPzw49QbuzxTWhXOJUZFI1Vn7kaTTgEC/8k3SyqunLm3UAEKax8bmMp4 X-Gm-Message-State: AOJu0Yx+xWmkJO18SBqlh6eGNmYrXVksN04lu6FsZNRZb3jbVqhpq31/ QwBMTFKBlqs2mIVoKb/NVDbZ8rBNOJ9QgzqkD5nO6sF5jlJcPH7NXr+eyA== X-Google-Smtp-Source: AGHT+IGx6Q4Tkbpg+bXl2FvxIB8R3MYG2YUdxLgYPEmov9V2ZXF/rPK+ND/0hSSJdhi4ESssz0L1nw== X-Received: by 2002:a05:6a20:3d88:b0:1a7:5334:fbf3 with SMTP id adf61e73a8af0-1b212e575e3mr1062026637.55.1716505879737; Thu, 23 May 2024 16:11:19 -0700 (PDT) From: Nicholas Piggin To: qemu-devel@nongnu.org Cc: Nicholas Piggin , qemu-ppc@nongnu.org, BALATON Zoltan Subject: [PULL 66/72] target/ppc: Remove id_tlbs flag from CPU env Date: Fri, 24 May 2024 09:07:39 +1000 Message-ID: <20240523230747.45703-67-npiggin@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240523230747.45703-1-npiggin@gmail.com> References: <20240523230747.45703-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::42f; envelope-from=npiggin@gmail.com; helo=mail-pf1-x42f.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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1716506022932100011 Content-Type: text/plain; charset="utf-8" From: BALATON Zoltan This flag for split instruction/data TLBs is only set for 6xx soft TLB MMU model and not used otherwise so no need to have a separate flag for that. Reviewed-by: Nicholas Piggin Signed-off-by: BALATON Zoltan Signed-off-by: Nicholas Piggin --- hw/ppc/pegasos2.c | 2 +- target/ppc/cpu.h | 5 ++++- target/ppc/cpu_init.c | 19 +++++-------------- target/ppc/helper_regs.c | 1 - target/ppc/mmu_common.c | 10 ++-------- target/ppc/mmu_helper.c | 12 ++---------- 6 files changed, 14 insertions(+), 35 deletions(-) diff --git a/hw/ppc/pegasos2.c b/hw/ppc/pegasos2.c index c22e8b336d..c1bd8dfa21 100644 --- a/hw/ppc/pegasos2.c +++ b/hw/ppc/pegasos2.c @@ -985,7 +985,7 @@ static void *build_fdt(MachineState *machine, int *fdt_= size) cpu->env.icache_line_size); qemu_fdt_setprop_cell(fdt, cp, "i-cache-line-size", cpu->env.icache_line_size); - if (cpu->env.id_tlbs) { + if (ppc_is_split_tlb(cpu)) { qemu_fdt_setprop_cell(fdt, cp, "i-tlb-sets", cpu->env.nb_ways); qemu_fdt_setprop_cell(fdt, cp, "i-tlb-size", cpu->env.tlb_per_way); qemu_fdt_setprop_cell(fdt, cp, "d-tlb-sets", cpu->env.nb_ways); diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index e201b7f6c2..95cc11dff7 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -1281,7 +1281,6 @@ struct CPUArchState { int tlb_per_way; /* Speed-up helper: used to avoid divisions at run ti= me */ int nb_ways; /* Number of ways in the TLB set */ int last_way; /* Last used way used to allocate TLB in a LRU way */ - int id_tlbs; /* If 1, MMU has separated TLBs for instructions & da= ta */ int nb_pids; /* Number of available PID registers */ int tlb_type; /* Type of TLB we're dealing with */ ppc_tlb_t tlb; /* TLB is optional. Allocate them only if needed */ @@ -2897,6 +2896,10 @@ static inline void booke206_fixed_size_tlbn(CPUPPCSt= ate *env, const int tlbn, tlb->mas1 |=3D ((uint32_t)tsize) << MAS1_TSIZE_SHIFT; } =20 +static inline bool ppc_is_split_tlb(PowerPCCPU *cpu) +{ + return cpu->env.tlb_type =3D=3D TLB_6XX; +} #endif =20 static inline bool msr_is_64bit(CPUPPCState *env, target_ulong msr) diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index 8cfaee61d9..9401eb28c3 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -2137,7 +2137,6 @@ static void init_proc_405(CPUPPCState *env) #if !defined(CONFIG_USER_ONLY) env->nb_tlb =3D 64; env->nb_ways =3D 1; - env->id_tlbs =3D 0; env->tlb_type =3D TLB_EMB; #endif init_excp_4xx(env); @@ -2211,7 +2210,6 @@ static void init_proc_440EP(CPUPPCState *env) #if !defined(CONFIG_USER_ONLY) env->nb_tlb =3D 64; env->nb_ways =3D 1; - env->id_tlbs =3D 0; env->tlb_type =3D TLB_EMB; #endif init_excp_BookE(env); @@ -2311,7 +2309,6 @@ static void init_proc_440GP(CPUPPCState *env) #if !defined(CONFIG_USER_ONLY) env->nb_tlb =3D 64; env->nb_ways =3D 1; - env->id_tlbs =3D 0; env->tlb_type =3D TLB_EMB; #endif init_excp_BookE(env); @@ -2386,7 +2383,6 @@ static void init_proc_440x5(CPUPPCState *env) #if !defined(CONFIG_USER_ONLY) env->nb_tlb =3D 64; env->nb_ways =3D 1; - env->id_tlbs =3D 0; env->tlb_type =3D TLB_EMB; #endif init_excp_BookE(env); @@ -2754,7 +2750,6 @@ static void init_proc_e200(CPUPPCState *env) #if !defined(CONFIG_USER_ONLY) env->nb_tlb =3D 64; env->nb_ways =3D 1; - env->id_tlbs =3D 0; env->tlb_type =3D TLB_EMB; #endif init_excp_e200(env, 0xFFFF0000UL); @@ -2874,7 +2869,6 @@ static void init_proc_e500(CPUPPCState *env, int vers= ion) /* Memory management */ env->nb_pids =3D 3; env->nb_ways =3D 2; - env->id_tlbs =3D 0; switch (version) { case fsl_e500v1: tlbncfg[0] =3D register_tlbncfg(2, 1, 1, 0, 256); @@ -6927,20 +6921,17 @@ static void init_ppc_proc(PowerPCCPU *cpu) } /* Allocate TLBs buffer when needed */ #if !defined(CONFIG_USER_ONLY) - if (env->nb_tlb !=3D 0) { - int nb_tlb =3D env->nb_tlb; - if (env->id_tlbs !=3D 0) { - nb_tlb *=3D 2; - } + if (env->nb_tlb) { switch (env->tlb_type) { case TLB_6XX: - env->tlb.tlb6 =3D g_new0(ppc6xx_tlb_t, nb_tlb); + /* 6xx has separate TLBs for instructions and data hence times= 2 */ + env->tlb.tlb6 =3D g_new0(ppc6xx_tlb_t, 2 * env->nb_tlb); break; case TLB_EMB: - env->tlb.tlbe =3D g_new0(ppcemb_tlb_t, nb_tlb); + env->tlb.tlbe =3D g_new0(ppcemb_tlb_t, env->nb_tlb); break; case TLB_MAS: - env->tlb.tlbm =3D g_new0(ppcmas_tlb_t, nb_tlb); + env->tlb.tlbm =3D g_new0(ppcmas_tlb_t, env->nb_tlb); break; } /* Pre-compute some useful values */ diff --git a/target/ppc/helper_regs.c b/target/ppc/helper_regs.c index 16b43702d5..02076e96fb 100644 --- a/target/ppc/helper_regs.c +++ b/target/ppc/helper_regs.c @@ -730,7 +730,6 @@ void register_6xx_7xx_soft_tlb(CPUPPCState *env, int nb= _tlbs, int nb_ways) #if !defined(CONFIG_USER_ONLY) env->nb_tlb =3D nb_tlbs; env->nb_ways =3D nb_ways; - env->id_tlbs =3D 1; env->tlb_type =3D TLB_6XX; spr_register(env, SPR_DMISS, "DMISS", SPR_NOACCESS, SPR_NOACCESS, diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c index 34200d9cb1..78bdbd506c 100644 --- a/target/ppc/mmu_common.c +++ b/target/ppc/mmu_common.c @@ -128,8 +128,8 @@ int ppc6xx_tlb_getnum(CPUPPCState *env, target_ulong ea= ddr, nr =3D (eaddr >> TARGET_PAGE_BITS) & (env->tlb_per_way - 1); /* Select TLB way */ nr +=3D env->tlb_per_way * way; - /* 6xx have separate TLBs for instructions and data */ - if (is_code && env->id_tlbs =3D=3D 1) { + /* 6xx has separate TLBs for instructions and data */ + if (is_code) { nr +=3D env->nb_tlb; } =20 @@ -1065,13 +1065,7 @@ static void mmu6xx_dump_mmu(CPUPPCState *env) mmu6xx_dump_BATs(env, ACCESS_INT); mmu6xx_dump_BATs(env, ACCESS_CODE); =20 - if (env->id_tlbs !=3D 1) { - qemu_printf("ERROR: 6xx MMU should have separated TLB" - " for code and data\n"); - } - qemu_printf("\nTLBs [EPN EPN + SIZE]\n"); - for (type =3D 0; type < 2; type++) { for (way =3D 0; way < env->nb_ways; way++) { for (entry =3D env->nb_tlb * type + env->tlb_per_way * way; diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c index d4388e66be..238407a7f1 100644 --- a/target/ppc/mmu_helper.c +++ b/target/ppc/mmu_helper.c @@ -45,14 +45,8 @@ static inline void ppc6xx_tlb_invalidate_all(CPUPPCState *env) { ppc6xx_tlb_t *tlb; - int nr, max; + int nr, max =3D 2 * env->nb_tlb; =20 - /* LOG_SWTLB("Invalidate all TLBs\n"); */ - /* Invalidate all defined software TLB */ - max =3D env->nb_tlb; - if (env->id_tlbs =3D=3D 1) { - max *=3D 2; - } for (nr =3D 0; nr < max; nr++) { tlb =3D &env->tlb.tlb6[nr]; pte_invalidate(&tlb->pte0); @@ -308,9 +302,7 @@ void ppc_tlb_invalidate_one(CPUPPCState *env, target_ul= ong addr) switch (env->mmu_model) { case POWERPC_MMU_SOFT_6xx: ppc6xx_tlb_invalidate_virt(env, addr, 0); - if (env->id_tlbs =3D=3D 1) { - ppc6xx_tlb_invalidate_virt(env, addr, 1); - } + ppc6xx_tlb_invalidate_virt(env, addr, 1); break; case POWERPC_MMU_32B: /* --=20 2.43.0