From patchwork Fri May 28 07:45:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 12286333 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_RED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3B64BC4708C for ; Fri, 28 May 2021 07:36:33 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id ABA29611CD for ; Fri, 28 May 2021 07:36:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ABA29611CD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BCA316B006C; Fri, 28 May 2021 03:36:31 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BA2716B006E; Fri, 28 May 2021 03:36:31 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A1C666B0070; Fri, 28 May 2021 03:36:31 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0005.hostedemail.com [216.40.44.5]) by kanga.kvack.org (Postfix) with ESMTP id 6F2076B006C for ; Fri, 28 May 2021 03:36:31 -0400 (EDT) Received: from smtpin25.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 06FDC8249980 for ; Fri, 28 May 2021 07:36:31 +0000 (UTC) X-FDA: 78189832182.25.CB42257 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf21.hostedemail.com (Postfix) with ESMTP id CC82DE000247 for ; Fri, 28 May 2021 07:36:18 +0000 (UTC) Received: from dggeml716-chm.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4FrxFx2wgGzWntx; Fri, 28 May 2021 15:31:49 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggeml716-chm.china.huawei.com (10.3.17.127) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Fri, 28 May 2021 15:36:25 +0800 Received: from localhost.localdomain.localdomain (10.175.113.25) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Fri, 28 May 2021 15:36:24 +0800 From: Kefeng Wang To: Andrew Morton CC: , , , , , , , , , , Kefeng Wang , Catalin Marinas , "Will Deacon" , Geert Uytterhoeven , "Thomas Bogendoerfer" , "David S. Miller" , Ingo Molnar , Borislav Petkov , Palmer Dabbelt , Richard Henderson , Russell King , Mike Rapoport Subject: [PATCH v2] mm: generalize ZONE_[DMA|DMA32] Date: Fri, 28 May 2021 15:45:57 +0800 Message-ID: <20210528074557.17768-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210527143047.123611-1-wangkefeng.wang@huawei.com> References: <20210527143047.123611-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected X-Rspamd-Queue-Id: CC82DE000247 Authentication-Results: imf21.hostedemail.com; dkim=none; spf=pass (imf21.hostedemail.com: domain of wangkefeng.wang@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=wangkefeng.wang@huawei.com; dmarc=pass (policy=none) header.from=huawei.com X-Rspamd-Server: rspam03 X-Stat-Signature: x8gwagatb1qt3do87gkifhkp1nydiwkg X-HE-Tag: 1622187378-681382 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: ZONE_[DMA|DMA32] configs have duplicate definitions on platforms that subscribe them. Instead, just make them generic options which can be selected on applicable platforms. Also only x86/arm64 architectures could enable both ZONE_DMA and ZONE_DMA32 if EXPERT, add ARCH_HAS_ZONE_DMA_SET to make dma zone configurable and visible on the two architectures. Cc: Andrew Morton Cc: Catalin Marinas Cc: Will Deacon Cc: Geert Uytterhoeven Cc: Thomas Bogendoerfer Cc: "David S. Miller" Cc: Ingo Molnar Cc: Borislav Petkov Cc: Palmer Dabbelt Cc: Richard Henderson Cc: Russell King Acked-by: Catalin Marinas # for arm64 Acked-by: Geert Uytterhoeven # for m68k Acked-by: Mike Rapoport Signed-off-by: Kefeng Wang Acked-by: Palmer Dabbelt # for RISC-V Acked-by: Michal Simek # for MB Acked-by: Michael Ellerman (powerpc) --- v2: -i386 can't enable ZONE_DMA32, fix it. -make ZONE_DMA default y on X86 as before. -collect ACKs arch/alpha/Kconfig | 5 +---- arch/arm/Kconfig | 3 --- arch/arm64/Kconfig | 9 +-------- arch/ia64/Kconfig | 4 +--- arch/m68k/Kconfig | 5 +---- arch/microblaze/Kconfig | 4 +--- arch/mips/Kconfig | 7 ------- arch/powerpc/Kconfig | 4 ---- arch/powerpc/platforms/Kconfig.cputype | 1 + arch/riscv/Kconfig | 5 +---- arch/s390/Kconfig | 4 +--- arch/sparc/Kconfig | 5 +---- arch/x86/Kconfig | 15 ++------------- mm/Kconfig | 12 ++++++++++++ 14 files changed, 23 insertions(+), 60 deletions(-) diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 5998106faa60..6a69a14c4825 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -40,6 +40,7 @@ config ALPHA select MMU_GATHER_NO_RANGE select SET_FS select SPARSEMEM_EXTREME if SPARSEMEM + select ZONE_DMA help The Alpha is a 64-bit general-purpose processor designed and marketed by the Digital Equipment Corporation of blessed memory, @@ -65,10 +66,6 @@ config GENERIC_CALIBRATE_DELAY bool default y -config ZONE_DMA - bool - default y - config GENERIC_ISA_DMA bool default y diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 24804f11302d..000c3f80b58e 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -218,9 +218,6 @@ config GENERIC_CALIBRATE_DELAY config ARCH_MAY_HAVE_PC_FDC bool -config ZONE_DMA - bool - config ARCH_SUPPORTS_UPROBES def_bool y diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 9f1d8566bbf9..42794474f37f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -42,6 +42,7 @@ config ARM64 select ARCH_HAS_SYSCALL_WRAPPER select ARCH_HAS_TEARDOWN_DMA_OPS if IOMMU_SUPPORT select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + select ARCH_HAS_ZONE_DMA_SET if EXPERT select ARCH_HAVE_ELF_PROT select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_INLINE_READ_LOCK if !PREEMPTION @@ -307,14 +308,6 @@ config GENERIC_CSUM config GENERIC_CALIBRATE_DELAY def_bool y -config ZONE_DMA - bool "Support DMA zone" if EXPERT - default y - -config ZONE_DMA32 - bool "Support DMA32 zone" if EXPERT - default y - config ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE def_bool y diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 279252e3e0f7..fd8503a0088a 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -60,6 +60,7 @@ config IA64 select NUMA if !FLATMEM select PCI_MSI_ARCH_FALLBACKS if PCI_MSI select SET_FS + select ZONE_DMA32 default y help The Itanium Processor Family is Intel's 64-bit successor to @@ -72,9 +73,6 @@ config 64BIT select ATA_NONSTANDARD if ATA default y -config ZONE_DMA32 - def_bool y - config MMU bool default y diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 372e4e69c43a..05a729c6ad7f 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -34,6 +34,7 @@ config M68K select SET_FS select UACCESS_MEMCPY if !MMU select VIRT_TO_BUS + select ZONE_DMA config CPU_BIG_ENDIAN def_bool y @@ -62,10 +63,6 @@ config TIME_LOW_RES config NO_IOPORT_MAP def_bool y -config ZONE_DMA - bool - default y - config HZ int default 1000 if CLEOPATRA diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 0660f47012bc..14a67a42fcae 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -43,6 +43,7 @@ config MICROBLAZE select MMU_GATHER_NO_RANGE select SPARSE_IRQ select SET_FS + select ZONE_DMA # Endianness selection choice @@ -60,9 +61,6 @@ config CPU_LITTLE_ENDIAN endchoice -config ZONE_DMA - def_bool y - config ARCH_HAS_ILOG2_U32 def_bool n diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index ed51970c08e7..430d5324f1af 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -3277,13 +3277,6 @@ config I8253 select CLKSRC_I8253 select CLKEVT_I8253 select MIPS_EXTERNAL_TIMER - -config ZONE_DMA - bool - -config ZONE_DMA32 - bool - endmenu config TRAD_SIGNALS diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 088dd2afcfe4..0f78bb383a12 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -403,10 +403,6 @@ config PPC_ADV_DEBUG_DAC_RANGE config PPC_DAWR bool -config ZONE_DMA - bool - default y if PPC_BOOK3E_64 - config PGTABLE_LEVELS int default 2 if !PPC64 diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index f998e655b570..7d271de8fcbd 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -111,6 +111,7 @@ config PPC_BOOK3E_64 select PPC_FPU # Make it a choice ? select PPC_SMP_MUXED_IPI select PPC_DOORBELL + select ZONE_DMA endchoice diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index a8ad8eb76120..d29643dee126 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -103,6 +103,7 @@ config RISCV select SYSCTL_EXCEPTION_TRACE select THREAD_INFO_IN_TASK select UACCESS_MEMCPY if !MMU + select ZONE_DMA32 if 64BIT config ARCH_MMAP_RND_BITS_MIN default 18 if 64BIT @@ -132,10 +133,6 @@ config MMU Select if you want MMU-based virtualised addressing space support by paged memory management. If unsure, say 'Y'. -config ZONE_DMA32 - bool - default y if 64BIT - config VA_BITS int default 32 if 32BIT diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index b4c7c34069f8..daab9d56957a 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -2,9 +2,6 @@ config MMU def_bool y -config ZONE_DMA - def_bool y - config CPU_BIG_ENDIAN def_bool y @@ -210,6 +207,7 @@ config S390 select THREAD_INFO_IN_TASK select TTY select VIRT_CPU_ACCOUNTING + select ZONE_DMA # Note: keep the above list sorted alphabetically config SCHED_OMIT_FRAME_POINTER diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 164a5254c91c..39679664cc9a 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -59,6 +59,7 @@ config SPARC32 select CLZ_TAB select HAVE_UID16 select OLD_SIGACTION + select ZONE_DMA config SPARC64 def_bool 64BIT @@ -141,10 +142,6 @@ config HIGHMEM default y if SPARC32 select KMAP_LOCAL -config ZONE_DMA - bool - default y if SPARC32 - config GENERIC_ISA_DMA bool default y if SPARC32 diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 0045e1b44190..11cf8a0d6800 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -33,6 +33,7 @@ config X86_64 select NEED_DMA_MAP_STATE select SWIOTLB select ARCH_HAS_ELFCORE_COMPAT + select ZONE_DMA32 config FORCE_DYNAMIC_FTRACE def_bool y @@ -93,6 +94,7 @@ config X86 select ARCH_HAS_SYSCALL_WRAPPER select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_HAS_DEBUG_WX + select ARCH_HAS_ZONE_DMA_SET if EXPERT select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI select ARCH_MIGHT_HAVE_PC_PARPORT @@ -343,9 +345,6 @@ config ARCH_SUSPEND_POSSIBLE config ARCH_WANT_GENERAL_HUGETLB def_bool y -config ZONE_DMA32 - def_bool y if X86_64 - config AUDIT_ARCH def_bool y if X86_64 @@ -393,16 +392,6 @@ config CC_HAS_SANE_STACKPROTECTOR menu "Processor type and features" -config ZONE_DMA - bool "DMA memory allocation support" if EXPERT - default y - help - DMA memory allocation support allows devices with less than 32-bit - addressing to allocate within the first 16MB of address space. - Disable if no such devices will be used. - - If unsure, say Y. - config SMP bool "Symmetric multi-processing support" help diff --git a/mm/Kconfig b/mm/Kconfig index 02d44e3420f5..16930f40f293 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -789,6 +789,18 @@ config ARCH_HAS_CACHE_LINE_SIZE config ARCH_HAS_PTE_DEVMAP bool +config ARCH_HAS_ZONE_DMA_SET + bool + +config ZONE_DMA + bool "Support DMA zone" if ARCH_HAS_ZONE_DMA_SET + default y if ARM64 || X86 + +config ZONE_DMA32 + bool "Support DMA32 zone" if ARCH_HAS_ZONE_DMA_SET + depends on !X86_32 + default y if ARM64 + config ZONE_DEVICE bool "Device memory (pmem, HMM, etc...) hotplug support" depends on MEMORY_HOTPLUG