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Tue, 13 Aug 2024 06:53:41 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Petazzoni , Richard Henderson , Aleksandar Rikalo , Waldemar Brodkorb , =?UTF-8?q?Philippe=20Mathieu-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 Content-Type: text/plain; charset="utf-8" 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=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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1723557278372116600 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-Daud=C3=A9 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/t= lb_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, ta= rget_ulong address, * resulting in a TLB or XTLB Refill exception. */ =20 -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)) !=3D 0) { + if ((vaddr & (memop_size(op) - 1)) !=3D 0) { return false; } - if (entry_size =3D=3D 64) { + if (op =3D=3D MO_64) { *pte =3D cpu_ldq_code(env, vaddr); } else { *pte =3D cpu_ldl_code(env, vaddr); @@ -607,11 +607,11 @@ static bool get_pte(CPUMIPSState *env, uint64_t vaddr= , int entry_size, } =20 static uint64_t get_tlb_entry_layout(CPUMIPSState *env, uint64_t entry, - int entry_size, int ptei) + MemOp op, int ptei) { uint64_t result =3D entry; uint64_t rixi; - if (ptei > entry_size) { + if (ptei > memop_size(op)) { ptei -=3D 32; } result >>=3D (ptei - 2); @@ -624,14 +624,12 @@ static uint64_t get_tlb_entry_layout(CPUMIPSState *en= v, 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 =3D (env->CP0_PWCtl >> CP0PC_DPH) & 0x1; int psn =3D (env->CP0_PWCtl >> CP0PC_PSN) & 0x3F; int hugepg =3D (env->CP0_PWCtl >> CP0PC_HUGEPG) & 0x1; int pf_ptew =3D (env->CP0_PWField >> CP0PF_PTEW) & 0x3F; - uint32_t direntry_size =3D 1 << (directory_shift + 3); - uint32_t leafentry_size =3D 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; } =20 if ((entry & (1 << psn)) && hugepg) { *huge_page =3D true; *hgpg_directory_hit =3D true; - entry =3D get_tlb_entry_layout(env, entry, leafentry_size, pf_ptew= ); + entry =3D get_tlb_entry_layout(env, entry, leaf_mop, pf_ptew); w =3D 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 =3D entry & ~lsb; /* even page */ *pw_entrylo1 =3D entry | lsb; /* odd page */ } else if (dph) { - int oddpagebit =3D 1 << leaf_shift; + int oddpagebit =3D 1 << leaf_mop; uint64_t vaddr2 =3D *vaddr ^ oddpagebit; if (*vaddr & oddpagebit) { *pw_entrylo1 =3D entry; @@ -669,10 +667,10 @@ static int walk_directory(CPUMIPSState *env, uint64_t= *vaddr, ptw_mmu_idx) !=3D TLBRET_MATCH) { return 0; } - if (!get_pte(env, vaddr2, leafentry_size, &entry)) { + if (!get_pte(env, vaddr2, leaf_mop, &entry)) { return 0; } - entry =3D get_tlb_entry_layout(env, entry, leafentry_size, pf_= ptew); + entry =3D get_tlb_entry_layout(env, entry, leaf_mop, pf_ptew); if (*vaddr & oddpagebit) { *pw_entrylo0 =3D entry; } else { @@ -711,7 +709,7 @@ static bool page_table_walk_refill(CPUMIPSState *env, v= addr address, =20 /* Native pointer size */ /*For the 32-bit architectures, this bit is fixed to 0.*/ - int native_shift =3D (((env->CP0_PWSize >> CP0PS_PS) & 1) =3D=3D 0) ? = 2 : 3; + MemOp native_op =3D (((env->CP0_PWSize >> CP0PS_PS) & 1) =3D=3D 0) ? M= O_32 : MO_64; =20 /* Indices from PWField */ int pf_gdw =3D (env->CP0_PWField >> CP0PF_GDW) & 0x3F; @@ -728,11 +726,10 @@ static bool page_table_walk_refill(CPUMIPSState *env,= vaddr address, =20 /* Other HTW configs */ int hugepg =3D (env->CP0_PWCtl >> CP0PC_HUGEPG) & 0x1; - unsigned directory_shift, leaf_shift; + MemOp directory_mop, leaf_mop; =20 /* Offsets into tables */ unsigned goffset, uoffset, moffset, ptoffset0, ptoffset1; - uint32_t leafentry_size; =20 /* Starting address - Page Table Base */ uint64_t vaddr =3D env->CP0_PWBase; @@ -759,23 +756,21 @@ static bool page_table_walk_refill(CPUMIPSState *env,= vaddr address, } =20 /* HTW Shift values (depend on entry size) */ - directory_shift =3D (hugepg && (ptew =3D=3D 1)) ? native_shift + 1 : n= ative_shift; - leaf_shift =3D (ptew =3D=3D 1) ? native_shift + 1 : native_shift; + directory_mop =3D (hugepg && (ptew =3D=3D 1)) ? native_op + 1 : native= _op; + leaf_mop =3D (ptew =3D=3D 1) ? native_op + 1 : native_op; =20 - goffset =3D gindex << directory_shift; - uoffset =3D uindex << directory_shift; - moffset =3D mindex << directory_shift; - ptoffset0 =3D (ptindex >> 1) << (leaf_shift + 1); - ptoffset1 =3D ptoffset0 | (1 << (leaf_shift)); - - leafentry_size =3D 1 << (leaf_shift + 3); + goffset =3D gindex << directory_mop; + uoffset =3D uindex << directory_mop; + moffset =3D mindex << directory_mop; + ptoffset0 =3D (ptindex >> 1) << (leaf_mop + 1); + ptoffset1 =3D ptoffset0 | (1 << (leaf_mop)); =20 /* Global Directory */ if (gdw > 0) { vaddr |=3D goffset; switch (walk_directory(env, &vaddr, pf_gdw, &huge_page, &hgpg_gdhi= t, &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, v= addr address, vaddr |=3D uoffset; switch (walk_directory(env, &vaddr, pf_udw, &huge_page, &hgpg_udhi= t, &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, v= addr address, vaddr |=3D moffset; switch (walk_directory(env, &vaddr, pf_mdw, &huge_page, &hgpg_mdhi= t, &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) !=3D 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 =3D get_tlb_entry_layout(env, dir_entry, leafentry_size, pf_= ptew); + dir_entry =3D get_tlb_entry_layout(env, dir_entry, leaf_mop, pf_ptew); pw_entrylo0 =3D dir_entry; =20 /* 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) !=3D 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 =3D get_tlb_entry_layout(env, dir_entry, leafentry_size, pf_= ptew); + dir_entry =3D get_tlb_entry_layout(env, dir_entry, leaf_mop, pf_ptew); pw_entrylo1 =3D dir_entry; =20 refill: --=20 2.45.2