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SubjectRe: [PATCH] riscv: move sifive_l2_cache.c to drivers/soc
On Sun, Aug 18, 2019 at 2:01 PM Christoph Hellwig <hch@lst.de> wrote:
>
> The sifive_l2_cache.c is in no way related to RISC-V architecture
> memory management. It is a little stub driver working around the fact
> that the EDAC maintainers prefer their drivers to be structured in a
> certain way that doesn't fit the SiFive SOCs.
>
> Move the file to drivers/soc and add a Kconfig option for it, as well
> as the whole drivers/soc boilerplate for CONFIG_SOC_SIFIVE.
>
> Fixes: a967a289f169 ("RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs")
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
> arch/riscv/mm/Makefile | 1 -
> drivers/edac/Kconfig | 2 +-
> drivers/soc/Kconfig | 1 +
> drivers/soc/Makefile | 1 +
> drivers/soc/sifive/Kconfig | 10 ++++++++++
> drivers/soc/sifive/Makefile | 4 ++++
> .../riscv/mm => drivers/soc/sifive}/sifive_l2_cache.c | 0
> 7 files changed, 17 insertions(+), 2 deletions(-)
> create mode 100644 drivers/soc/sifive/Kconfig
> create mode 100644 drivers/soc/sifive/Makefile
> rename {arch/riscv/mm => drivers/soc/sifive}/sifive_l2_cache.c (100%)
>
> diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile
> index 74055e1d6f21..d2101d0741d4 100644
> --- a/arch/riscv/mm/Makefile
> +++ b/arch/riscv/mm/Makefile
> @@ -11,6 +11,5 @@ obj-y += extable.o
> obj-y += ioremap.o
> obj-y += cacheflush.o
> obj-y += context.o
> -obj-y += sifive_l2_cache.o
>
> obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
> diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
> index 200c04ce5b0e..9241b3e7a050 100644
> --- a/drivers/edac/Kconfig
> +++ b/drivers/edac/Kconfig
> @@ -462,7 +462,7 @@ config EDAC_ALTERA_SDMMC
>
> config EDAC_SIFIVE
> bool "Sifive platform EDAC driver"
> - depends on EDAC=y && RISCV
> + depends on EDAC=y && SIFIVE_L2
> help
> Support for error detection and correction on the SiFive SoCs.
>
> diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
> index 833e04a7835c..1778f8c62861 100644
> --- a/drivers/soc/Kconfig
> +++ b/drivers/soc/Kconfig
> @@ -14,6 +14,7 @@ source "drivers/soc/qcom/Kconfig"
> source "drivers/soc/renesas/Kconfig"
> source "drivers/soc/rockchip/Kconfig"
> source "drivers/soc/samsung/Kconfig"
> +source "drivers/soc/sifive/Kconfig"
> source "drivers/soc/sunxi/Kconfig"
> source "drivers/soc/tegra/Kconfig"
> source "drivers/soc/ti/Kconfig"
> diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
> index 2ec355003524..8b49d782a1ab 100644
> --- a/drivers/soc/Makefile
> +++ b/drivers/soc/Makefile
> @@ -20,6 +20,7 @@ obj-y += qcom/
> obj-y += renesas/
> obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
> obj-$(CONFIG_SOC_SAMSUNG) += samsung/
> +obj-$(CONFIG_SOC_SIFIVE) += sifive/
> obj-y += sunxi/
> obj-$(CONFIG_ARCH_TEGRA) += tegra/
> obj-y += ti/
> diff --git a/drivers/soc/sifive/Kconfig b/drivers/soc/sifive/Kconfig
> new file mode 100644
> index 000000000000..9ffb2e8a48cd
> --- /dev/null
> +++ b/drivers/soc/sifive/Kconfig
> @@ -0,0 +1,10 @@
> +# SPDX-License-Identifier: GPL-2.0
> +
> +if SOC_SIFIVE
> +
> +config SIFIVE_L2
> + tristate "Sifive L2 Cache controller"
> + help
> + Support for the L2 cache controller on SiFive platforms.
> +
> +endif
> diff --git a/drivers/soc/sifive/Makefile b/drivers/soc/sifive/Makefile
> new file mode 100644
> index 000000000000..9b4a85558347
> --- /dev/null
> +++ b/drivers/soc/sifive/Makefile
> @@ -0,0 +1,4 @@
> +# SPDX-License-Identifier: GPL-2.0
> +
> +obj-$(CONFIG_SIFIVE_L2) += sifive_l2_cache.o
> +
> diff --git a/arch/riscv/mm/sifive_l2_cache.c b/drivers/soc/sifive/sifive_l2_cache.c
> similarity index 100%
> rename from arch/riscv/mm/sifive_l2_cache.c
> rename to drivers/soc/sifive/sifive_l2_cache.c
> --
> 2.20.1
>

LGTM.

Reviewed-by: Anup Patel <anup@brainfault.org>

Regards,
Anup

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