arm64: Implement pmem API support

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Add a clean-to-point-of-persistence cache maintenance helper, and wire
up the basic architectural support for the pmem driver based on it.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
[catalin.marinas@arm.com: move arch_*_pmem() functions to arch/arm64/mm/flush.c]
[catalin.marinas@arm.com: change dmb(sy) to dmb(osh)]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Robin Murphy 2017-07-25 11:55:42 +01:00 • committed by Catalin Marinas

parent e1bc5d1b8e

commit d50e071fda

7 changed files with 61 additions and 1 deletions

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11

arch/arm64/Kconfig

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6

arch/arm64/include/asm/assembler.h

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1

arch/arm64/include/asm/cacheflush.h

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3

arch/arm64/include/asm/cpucaps.h

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11

arch/arm64/kernel/cpufeature.c

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14

arch/arm64/mm/cache.S

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16

arch/arm64/mm/flush.c

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