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SubjectRe: [PATCH 6/6] MIPS: remove CONFIG_DMA_PERDEV_COHERENT
Reviewed-by: Huacai Chen <chenhuacai@kernel.org>

On Mon, Feb 8, 2021 at 10:51 PM Christoph Hellwig <hch@lst.de> wrote:
>
> Just select DMA_NONCOHERENT and ARCH_HAS_SETUP_DMA_OPS from the
> MIPS_GENERIC platform instead.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> arch/mips/Kconfig | 8 ++------
> arch/mips/mm/dma-noncoherent.c | 2 +-
> 2 files changed, 3 insertions(+), 7 deletions(-)
>
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 1f1603a08a6d2d..fae02b0b9c599a 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -123,6 +123,7 @@ choice
>
> config MIPS_GENERIC_KERNEL
> bool "Generic board-agnostic MIPS kernel"
> + select ARCH_HAS_SETUP_DMA_OPS
> select MIPS_GENERIC
> select BOOT_RAW
> select BUILTIN_DTB
> @@ -132,7 +133,7 @@ config MIPS_GENERIC_KERNEL
> select CPU_MIPSR2_IRQ_EI
> select CPU_MIPSR2_IRQ_VI
> select CSRC_R4K
> - select DMA_PERDEV_COHERENT
> + select DMA_NONCOHERENT
> select HAVE_PCI
> select IRQ_MIPS_CPU
> select MIPS_AUTO_PFN_OFFSET
> @@ -1127,11 +1128,6 @@ config FW_CFE
> config ARCH_SUPPORTS_UPROBES
> bool
>
> -config DMA_PERDEV_COHERENT
> - bool
> - select ARCH_HAS_SETUP_DMA_OPS
> - select DMA_NONCOHERENT
> -
> config DMA_NONCOHERENT
> bool
> #
> diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c
> index 90b562753eb892..212f3ce75a6bd3 100644
> --- a/arch/mips/mm/dma-noncoherent.c
> +++ b/arch/mips/mm/dma-noncoherent.c
> @@ -135,7 +135,7 @@ void arch_sync_dma_for_cpu(phys_addr_t paddr, size_t size,
> }
> #endif
>
> -#ifdef CONFIG_DMA_PERDEV_COHERENT
> +#ifdef CONFIG_ARCH_HAS_SETUP_DMA_OPS
> void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
> const struct iommu_ops *iommu, bool coherent)
> {
> --
> 2.29.2
>

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