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[115.64.213.93]) by smtp.gmail.com with ESMTPSA id gc22sm7242851pjb.57.2021.11.25.04.51.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Nov 2021 04:51:06 -0800 (PST) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 12/17] powerpc: make memremap_compat_align 64s-only Date: Thu, 25 Nov 2021 22:50:20 +1000 Message-Id: <20211125125025.1472060-13-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20211125125025.1472060-1-npiggin@gmail.com> References: <20211125125025.1472060-1-npiggin@gmail.com> MIME-Version: 1.0 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicholas Piggin Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" memremap_compat_align is only relevant when ZONE_DEVICE is selected. ZONE_DEVICE depends on ARCH_HAS_PTE_DEVMAP, which is only selected by PPC_BOOK3S_64. Signed-off-by: Nicholas Piggin --- arch/powerpc/Kconfig | 2 +- arch/powerpc/mm/book3s64/pgtable.c | 20 ++++++++++++++++++++ arch/powerpc/mm/ioremap.c | 20 -------------------- 3 files changed, 21 insertions(+), 21 deletions(-) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index dea74d7717c0..27afb64d027c 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -129,7 +129,7 @@ config PPC select ARCH_HAS_KCOV select ARCH_HAS_MEMBARRIER_CALLBACKS select ARCH_HAS_MEMBARRIER_SYNC_CORE - select ARCH_HAS_MEMREMAP_COMPAT_ALIGN + select ARCH_HAS_MEMREMAP_COMPAT_ALIGN if PPC_BOOK3S_64 select ARCH_HAS_MMIOWB if PPC64 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE select ARCH_HAS_PHYS_TO_DMA diff --git a/arch/powerpc/mm/book3s64/pgtable.c b/arch/powerpc/mm/book3s64/pgtable.c index 81f2e5b670e2..4d97d1525d49 100644 --- a/arch/powerpc/mm/book3s64/pgtable.c +++ b/arch/powerpc/mm/book3s64/pgtable.c @@ -533,3 +533,23 @@ static int __init pgtable_debugfs_setup(void) return 0; } arch_initcall(pgtable_debugfs_setup); + +#ifdef CONFIG_ZONE_DEVICE +/* + * Override the generic version in mm/memremap.c. + * + * With hash translation, the direct-map range is mapped with just one + * page size selected by htab_init_page_sizes(). Consult + * mmu_psize_defs[] to determine the minimum page size alignment. +*/ +unsigned long memremap_compat_align(void) +{ + if (!radix_enabled()) { + unsigned int shift = mmu_psize_defs[mmu_linear_psize].shift; + return max(SUBSECTION_SIZE, 1UL << shift); + } + + return SUBSECTION_SIZE; +} +EXPORT_SYMBOL_GPL(memremap_compat_align); +#endif diff --git a/arch/powerpc/mm/ioremap.c b/arch/powerpc/mm/ioremap.c index 57342154d2b0..4f12504fb405 100644 --- a/arch/powerpc/mm/ioremap.c +++ b/arch/powerpc/mm/ioremap.c @@ -98,23 +98,3 @@ void __iomem *do_ioremap(phys_addr_t pa, phys_addr_t offset, unsigned long size, return NULL; } - -#ifdef CONFIG_ZONE_DEVICE -/* - * Override the generic version in mm/memremap.c. - * - * With hash translation, the direct-map range is mapped with just one - * page size selected by htab_init_page_sizes(). Consult - * mmu_psize_defs[] to determine the minimum page size alignment. -*/ -unsigned long memremap_compat_align(void) -{ - unsigned int shift = mmu_psize_defs[mmu_linear_psize].shift; - - if (radix_enabled()) - return SUBSECTION_SIZE; - return max(SUBSECTION_SIZE, 1UL << shift); - -} -EXPORT_SYMBOL_GPL(memremap_compat_align); -#endif