From patchwork Mon Dec 23 09:40:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zheng X-Patchwork-Id: 13918758 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 5C2D9E77190 for ; Mon, 23 Dec 2024 11:06:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xY41yoAggnrpKZDOvMIy0+FhpPRF9QFn+bDK7HKPzWw=; b=WSsikZDjUMQD498nqNvIx6fjDi sbiz+R87yDGjf9uCdUBG3PFqvt4u+OvGWf5zyEtd5SJyaPUSM3EjdmIYitrwcVVDoqcAqSYWCVJq7 /lRvWIJW0zBFzAl2EEvMeXfqZcgf1N79TJdvZ/exwtQ38z3b6nZsjpcMtV65/xehdMVNIdFmSj2sr xm7GmLoyBoLMc24Ym9EEmCXU6bwLQpxpERjTp4NgOxpLSpy3pFanvJ0o9rzT6uw5eboliG2gXlU6L uM1JWccNJ0nBFzl+kMI50LqVRvt81yTD21yxckvtgCxfQi2qhG1g2PgiApgDoBjRpOQrk4NRLrwqQ 0GCbm1Ow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tPgGF-00000009qHM-14J2; Mon, 23 Dec 2024 11:06:07 +0000 Received: from mail-pg1-x532.google.com ([2607:f8b0:4864:20::532]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tPez6-00000009gWj-3mit for linux-arm-kernel@lists.infradead.org; Mon, 23 Dec 2024 09:44:23 +0000 Received: by mail-pg1-x532.google.com with SMTP id 41be03b00d2f7-7fd581c2bf4so2340541a12.3 for ; Mon, 23 Dec 2024 01:44:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1734947060; x=1735551860; darn=lists.infradead.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=xY41yoAggnrpKZDOvMIy0+FhpPRF9QFn+bDK7HKPzWw=; b=i+WTVhdo3Kw+Qe62tI/pXWrKmBDLKaRAxA5NP1PtFq6LfV/HS7I5a2bXsiezt3/jlA zOivCtcqC/ItjW4Ejba5S/Fzi32ztC4Fox1L9kRL+OoQWHaODfUgZSkp6N8h21c6DF7O jGX2CQHAvMYFaQ2TIcPI9uAP8RJDJHClnVB1K56V8ld38+l5hgre/+ZHsyzizjYB69Qo NEyE/8XbKPJunC6kVwJAibJAmHiDforg4xDSBSla1xqqHStnQ361Yvidt39riHIPN3Yd dzPD5k+mP2U8AaulCs0Tm3Olp6lknwpwcBLRWBbEOjHKFW9znvN6qYcGNkFiDq7l3nU2 3GSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734947060; x=1735551860; 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=xY41yoAggnrpKZDOvMIy0+FhpPRF9QFn+bDK7HKPzWw=; b=hmfIj8nyHjI95yYhk6/EdY9etdpxqOEyUFANXZ+wm69wdDQ5vuRfcCgokZJ+TMOHDL /evpidWkzvtjwy89Az24U0K/u8fcwb8lNXHrj470+h2h0wUMAkDEafkGgl3ZmTuEVBzq QcvAXGyrCCzQndmHPe0mXDtlJ2z9z9pZx3OJvJ7Twfn/gr+mZiPntT2tv2Pwskffwvh2 f7i7KhnSNwoYGYthBIWXeVZnTQpZ+5q59JaIDY2POg6hfVCLaSw/CBcaEo4sPvJTKDyk /KiDBhKPuXkdQSzuwIee8TOVhM+dx8NoHCCqTzcY3f+/8KrRcB6yHaz/82SyPOtiFw11 5n+Q== X-Forwarded-Encrypted: i=1; AJvYcCU/XwTgg4sr3c6DX10NVGp323jyWj1KCMXBbkNFPNE0dIFlvIuHfBfq2ZU+ewdBNRhYf5lQSPLpqJZbd5M5g51S@lists.infradead.org X-Gm-Message-State: AOJu0YzklFd2wAj6S0Hrxk6jWlRpzq6GSp/LaEUefK2dYB1o+Bh6WXBR 32U8nBx7wQByd17pxa9yqP9MLuTGKEvtiWXfjai/lGE2Kxr1XW4511Zqu9GvWuQ= X-Gm-Gg: ASbGncs18fxf8rD1dRX9GIKeqG6smjnwm00iTzLx9RYG/NZOKfZTYeDns2RdpjELRJf lDgf7ZrevMOyASExiGX90/4RdJn+9Xk9S/ljsEdNbENJj9CWTqLaSWWc8IyH2Clx+lU3fP9Ro2c H6bFHl4Ldj7pDDca2ITXB9XcLsrIZTH8urCiiqfZYurHatqfleXBeBHpVxjcr7WjOEUYjLo8Dcr ArZlK4qwwYBBJmn+cXYq96BMMfX/FXhDJgPs0vtPPMRv0+WhN/EWE8sPthm1iUs4o8xuvOVPEhV ue8SuwZs3MvFJzif2DQxgg== X-Google-Smtp-Source: AGHT+IF7O/ZMCvOOtywTANPL1zwoTq06yXXDMhnBrPgrfov3E/r1DzhOhOYD8wImAojzeP7TdceoFw== X-Received: by 2002:a05:6a21:3285:b0:1e1:aad7:d50d with SMTP id adf61e73a8af0-1e5e084b681mr22018514637.46.1734947059944; Mon, 23 Dec 2024 01:44:19 -0800 (PST) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.150]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-72aad8486c6sm7468309b3a.85.2024.12.23.01.44.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Dec 2024 01:44:19 -0800 (PST) From: Qi Zheng To: peterz@infradead.org, agordeev@linux.ibm.com, kevin.brodsky@arm.com, tglx@linutronix.de, david@redhat.com, jannh@google.com, hughd@google.com, yuzhao@google.com, willy@infradead.org, muchun.song@linux.dev, vbabka@kernel.org, lorenzo.stoakes@oracle.com, akpm@linux-foundation.org, rientjes@google.com, vishal.moola@gmail.com, arnd@arndb.de, will@kernel.org, aneesh.kumar@kernel.org, npiggin@gmail.com, dave.hansen@linux.intel.com, rppt@kernel.org, ryan.roberts@arm.com Cc: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-arch@vger.kernel.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Qi Zheng Subject: [PATCH v3 06/17] s390: pgtable: add statistics for PUD and P4D level page table Date: Mon, 23 Dec 2024 17:40:52 +0800 Message-Id: <35be22a2b1666df729a9fc108c2da5cce266e4be.1734945104.git.zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241223_014420_993417_C3590E05 X-CRM114-Status: GOOD ( 12.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Like PMD and PTE level page table, also add statistics for PUD and P4D page table. Signed-off-by: Qi Zheng Suggested-by: Peter Zijlstra (Intel) Cc: linux-s390@vger.kernel.org --- arch/s390/include/asm/pgalloc.h | 29 +++++++++++++++++++------- arch/s390/include/asm/tlb.h | 37 +++++++++++++++++---------------- 2 files changed, 40 insertions(+), 26 deletions(-) diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index 7b84ef6dc4b6d..a0c1ca5d8423c 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -53,29 +53,42 @@ static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long address) { unsigned long *table = crst_table_alloc(mm); - if (table) - crst_table_init(table, _REGION2_ENTRY_EMPTY); + if (!table) + return NULL; + crst_table_init(table, _REGION2_ENTRY_EMPTY); + pagetable_p4d_ctor(virt_to_ptdesc(table)); + return (p4d_t *) table; } static inline void p4d_free(struct mm_struct *mm, p4d_t *p4d) { - if (!mm_p4d_folded(mm)) - crst_table_free(mm, (unsigned long *) p4d); + if (mm_p4d_folded(mm)) + return; + + pagetable_p4d_dtor(virt_to_ptdesc(p4d)); + crst_table_free(mm, (unsigned long *) p4d); } static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) { unsigned long *table = crst_table_alloc(mm); - if (table) - crst_table_init(table, _REGION3_ENTRY_EMPTY); + + if (!table) + return NULL; + crst_table_init(table, _REGION3_ENTRY_EMPTY); + pagetable_pud_ctor(virt_to_ptdesc(table)); + return (pud_t *) table; } static inline void pud_free(struct mm_struct *mm, pud_t *pud) { - if (!mm_pud_folded(mm)) - crst_table_free(mm, (unsigned long *) pud); + if (mm_pud_folded(mm)) + return; + + pagetable_pud_dtor(virt_to_ptdesc(pud)); + crst_table_free(mm, (unsigned long *) pud); } static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr) diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index e95b2c8081eb8..b946964afce8e 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -110,24 +110,6 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, tlb_remove_ptdesc(tlb, pmd); } -/* - * p4d_free_tlb frees a pud table and clears the CRSTE for the - * region second table entry from the tlb. - * If the mm uses a four level page table the single p4d is freed - * as the pgd. p4d_free_tlb checks the asce_limit against 8PB - * to avoid the double free of the p4d in this case. - */ -static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, - unsigned long address) -{ - if (mm_p4d_folded(tlb->mm)) - return; - __tlb_adjust_range(tlb, address, PAGE_SIZE); - tlb->mm->context.flush_mm = 1; - tlb->freed_tables = 1; - tlb_remove_ptdesc(tlb, p4d); -} - /* * pud_free_tlb frees a pud table and clears the CRSTE for the * region third table entry from the tlb. @@ -140,11 +122,30 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, { if (mm_pud_folded(tlb->mm)) return; + pagetable_pud_dtor(virt_to_ptdesc(pud)); tlb->mm->context.flush_mm = 1; tlb->freed_tables = 1; tlb->cleared_p4ds = 1; tlb_remove_ptdesc(tlb, pud); } +/* + * p4d_free_tlb frees a p4d table and clears the CRSTE for the + * region second table entry from the tlb. + * If the mm uses a four level page table the single p4d is freed + * as the pgd. p4d_free_tlb checks the asce_limit against 8PB + * to avoid the double free of the p4d in this case. + */ +static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, + unsigned long address) +{ + if (mm_p4d_folded(tlb->mm)) + return; + pagetable_p4d_dtor(virt_to_ptdesc(p4d)); + __tlb_adjust_range(tlb, address, PAGE_SIZE); + tlb->mm->context.flush_mm = 1; + tlb->freed_tables = 1; + tlb_remove_ptdesc(tlb, p4d); +} #endif /* _S390_TLB_H */