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    Subject[PATCH 1/3] msm: iommu: Create a Kconfig item for the IOMMU driver
    Date
    Break the IOMMU driver out as a Kconfig item. Initially it
    was decided to always build this in for 8x60, but this
    driver is not strictly necessary and should be optionally
    selectable.

    Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
    ---
    arch/arm/mach-msm/Kconfig | 13 ++++++++++++-
    arch/arm/mach-msm/Makefile | 3 ++-
    2 files changed, 14 insertions(+), 2 deletions(-)

    diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
    index df9d74e..32b9d1f 100644
    --- a/arch/arm/mach-msm/Kconfig
    +++ b/arch/arm/mach-msm/Kconfig
    @@ -45,7 +45,6 @@ config ARCH_MSM8X60
    select CPU_V7
    select MSM_V2_TLMM
    select MSM_GPIOMUX
    - select IOMMU_API
    select MSM_SCM if SMP

    config ARCH_MSM8960
    @@ -149,6 +148,18 @@ config MACH_MSM8960_RUMI3

    endmenu

    +config MSM_IOMMU
    + bool "MSM IOMMU Support"
    + depends on ARCH_MSM8X60
    + select IOMMU_API
    + default n
    + help
    + Support for the IOMMUs found on certain Qualcomm SOCs.
    + These IOMMUs allow virtualization of the address space used by most
    + cores within the multimedia subsystem.
    +
    + If unsure, say N here.
    +
    config IOMMU_PGTABLES_L2
    def_bool y
    depends on ARCH_MSM8X60 && MMU && SMP && CPU_DCACHE_DISABLE=n
    diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
    index ea8c74f..81f4811 100644
    --- a/arch/arm/mach-msm/Makefile
    +++ b/arch/arm/mach-msm/Makefile
    @@ -4,11 +4,12 @@ obj-$(CONFIG_DEBUG_FS) += clock-debug.o
    endif

    obj-$(CONFIG_MSM_VIC) += irq-vic.o
    +obj-$(CONFIG_MSM_IOMMU) += iommu.o iommu_dev.o

    obj-$(CONFIG_ARCH_MSM7X00A) += dma.o irq.o acpuclock-arm11.o
    obj-$(CONFIG_ARCH_MSM7X30) += dma.o
    obj-$(CONFIG_ARCH_QSD8X50) += dma.o sirc.o
    -obj-$(CONFIG_ARCH_MSM8X60) += clock-dummy.o iommu.o iommu_dev.o devices-msm8x60-iommu.o
    +obj-$(CONFIG_ARCH_MSM8X60) += clock-dummy.o devices-msm8x60-iommu.o
    obj-$(CONFIG_ARCH_MSM8960) += clock-dummy.o

    obj-$(CONFIG_MSM_PROC_COMM) += proc_comm.o clock-pcom.o vreg.o
    --
    Sent by an employee of the Qualcomm Innovation Center, Inc.
    The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.


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