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    Subject[PATCH v9 03/21] ACPI: add arm64 to the platforms that use ioremap
    Date
    From: Graeme Gregory <graeme.gregory@linaro.org>

    Now with the base changes to the arm memory mapping it is safe
    to convert to using ioremap to map in the tables after
    acpi_gbl_permanent_mmap is set.

    CC: Rafael J Wysocki <rjw@rjwysocki.net>
    Tested-by: Robert Richter <rrichter@cavium.com>
    Acked-by: Robert Richter <rrichter@cavium.com>
    Signed-off-by: Al Stone <al.stone@linaro.org>
    Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
    Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
    ---
    drivers/acpi/osl.c | 6 +++---
    1 file changed, 3 insertions(+), 3 deletions(-)

    diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
    index f9eeae8..39748bb 100644
    --- a/drivers/acpi/osl.c
    +++ b/drivers/acpi/osl.c
    @@ -336,11 +336,11 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size)
    return NULL;
    }

    -#ifndef CONFIG_IA64
    -#define should_use_kmap(pfn) page_is_ram(pfn)
    -#else
    +#if defined(CONFIG_IA64) || defined(CONFIG_ARM64)
    /* ioremap will take care of cache attributes */
    #define should_use_kmap(pfn) 0
    +#else
    +#define should_use_kmap(pfn) page_is_ram(pfn)
    #endif

    static void __iomem *acpi_map(acpi_physical_address pg_off, unsigned long pg_sz)
    --
    1.9.1


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