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ARM is the only architecture that defines CONFIG_ARCH_HAS_HOLES_MEMORYMODEL which in turn enables memmap_valid_within() function that is intended to verify existence of struct page associated with a pfn when there are holes in the memory map. However, the ARCH_HAS_HOLES_MEMORYMODEL also enables HAVE_ARCH_PFN_VALID and arch-specific pfn_valid() implementation that also deals with the holes in the memory map. The only two users of memmap_valid_within() call this function after a call to pfn_valid() so the memmap_valid_within() check becomes redundant. Remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL and memmap_valid_within() and rely entirely on ARM's implementation of pfn_valid() that is now enabled unconditionally. Link: https://lkml.kernel.org/r/20201101170454.9567-9-rppt@kernel.org Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matt Turner <mattst88@gmail.com> Cc: Meelis Roos <mroos@linux.ee> Cc: Michael Schmitz <schmitzmic@gmail.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
18 lines
466 B
Text
18 lines
466 B
Text
# SPDX-License-Identifier: GPL-2.0-only
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config ARCH_HIGHBANK
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bool "Calxeda ECX-1000/2000 (Highbank/Midway)"
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depends on ARCH_MULTI_V7
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select ARCH_SUPPORTS_BIG_ENDIAN
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select ARM_AMBA
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select ARM_ERRATA_764369 if SMP
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select ARM_ERRATA_775420
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select ARM_ERRATA_798181 if SMP
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select ARM_GIC
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select ARM_PSCI
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select ARM_TIMER_SP804
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select CACHE_L2X0
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select HAVE_ARM_SCU
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select HAVE_ARM_TWD if SMP
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select MAILBOX
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select PL320_MBOX
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select ZONE_DMA if ARM_LPAE
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