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    Subject[PATCH 0/4] generic early_ioremap support
    Date
    This patch series takes the common bits from the x86 early ioremap
    implementation and creates a generic library which may be used by
    other architectures. The early ioremap interfaces are intended for
    situations where boot code needs to make temporary virtual mappings
    before the normal ioremap interfaces are available. Typically, this
    means before paging_init() has run.

    These patches are layered on top of generic fixmap patches which
    have been discussed here:

    http://lkml.org/lkml/2013/11/25/474

    These patches (and undelying fixmap patches) may be found at:

    git://github.com/mosalter/linux.git (early-ioremap branch)

    Mark Salter (4):
    Create generic early_ioremap() support
    x86: use generic early_ioremap
    arm: add early_ioremap support
    arm64: add early_ioremap support

    Documentation/arm64/memory.txt | 4 +-
    arch/arm/Kconfig | 11 ++
    arch/arm/include/asm/Kbuild | 1 +
    arch/arm/include/asm/fixmap.h | 18 +++
    arch/arm/include/asm/io.h | 1 +
    arch/arm/kernel/setup.c | 3 +
    arch/arm/mm/Makefile | 1 +
    arch/arm/mm/early_ioremap.c | 93 ++++++++++++++
    arch/arm/mm/mmu.c | 2 +
    arch/arm64/Kconfig | 1 +
    arch/arm64/include/asm/Kbuild | 1 +
    arch/arm64/include/asm/fixmap.h | 68 ++++++++++
    arch/arm64/include/asm/io.h | 1 +
    arch/arm64/include/asm/memory.h | 1 +
    arch/arm64/kernel/early_printk.c | 8 +-
    arch/arm64/kernel/head.S | 9 +-
    arch/arm64/kernel/setup.c | 2 +
    arch/arm64/mm/ioremap.c | 77 ++++++++++++
    arch/arm64/mm/mmu.c | 41 ------
    arch/x86/Kconfig | 1 +
    arch/x86/include/asm/Kbuild | 1 +
    arch/x86/include/asm/fixmap.h | 6 +
    arch/x86/include/asm/io.h | 14 +--
    arch/x86/mm/ioremap.c | 224 +--------------------------------
    arch/x86/mm/pgtable_32.c | 2 +-
    include/asm-generic/early_ioremap.h | 40 ++++++
    lib/Kconfig | 3 +
    lib/Makefile | 1 +
    lib/early_ioremap.c | 243 ++++++++++++++++++++++++++++++++++++
    29 files changed, 592 insertions(+), 286 deletions(-)
    create mode 100644 arch/arm/mm/early_ioremap.c
    create mode 100644 arch/arm64/include/asm/fixmap.h
    create mode 100644 include/asm-generic/early_ioremap.h
    create mode 100644 lib/early_ioremap.c

    --
    1.8.3.1



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