linux-kernel - Re: [PATCH v3 01/10] acpi/numa: Establish a new drivers/acpi/numa/ directory

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Date:   Mon, 10 Jun 2019 13:02:07 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     linux-kernel@...r.kernel.org, Len Brown <lenb@...nel.org>,
        Keith Busch <keith.busch@...el.com>, peterz@...radead.org,
        vishal.l.verma@...el.com, dave.hansen@...ux.intel.com,
        ard.biesheuvel@...aro.org, linux-nvdimm@...ts.01.org,
        x86@...nel.org, linux-efi@...r.kernel.org
Subject: Re: [PATCH v3 01/10] acpi/numa: Establish a new drivers/acpi/numa/ directory

On Friday, June 7, 2019 9:27:18 PM CEST Dan Williams wrote:
> Currently hmat.c lives under an "hmat" directory which does not enhance
> the description of the file. The initial motivation for giving hmat.c
> its own directory was to delineate it as mm functionality in contrast to
> ACPI device driver functionality.
> 
> As ACPI continues to play an increasing role in conveying
> memory location and performance topology information to the OS take the
> opportunity to co-locate these NUMA relevant tables in a combined
> directory.
> 
> numa.c is renamed to srat.c and moved to drivers/acpi/numa/ along with
> hmat.c.
> 
> Cc: Len Brown <lenb@...nel.org>
> Cc: Keith Busch <keith.busch@...el.com>
> Cc: "Rafael J. Wysocki" <rjw@...ysocki.net>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>

A CC to linux-acpi is missing from this series.

> ---
>  drivers/acpi/Kconfig       |    9 +--------
>  drivers/acpi/Makefile      |    3 +--
>  drivers/acpi/hmat/Makefile |    2 --
>  drivers/acpi/numa/Kconfig  |    7 ++++++-
>  drivers/acpi/numa/Makefile |    3 +++
>  drivers/acpi/numa/hmat.c   |    0 
>  drivers/acpi/numa/srat.c   |    0 
>  7 files changed, 11 insertions(+), 13 deletions(-)
>  delete mode 100644 drivers/acpi/hmat/Makefile
>  rename drivers/acpi/{hmat/Kconfig => numa/Kconfig} (72%)
>  create mode 100644 drivers/acpi/numa/Makefile
>  rename drivers/acpi/{hmat/hmat.c => numa/hmat.c} (100%)
>  rename drivers/acpi/{numa.c => numa/srat.c} (100%)
> 
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index 283ee94224c6..82c4a31c8701 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -321,12 +321,6 @@ config ACPI_THERMAL
>  	  To compile this driver as a module, choose M here:
>  	  the module will be called thermal.
>  
> -config ACPI_NUMA
> -	bool "NUMA support"
> -	depends on NUMA
> -	depends on (X86 || IA64 || ARM64)
> -	default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
> -
>  config ACPI_CUSTOM_DSDT_FILE
>  	string "Custom DSDT Table file to include"
>  	default ""
> @@ -475,8 +469,7 @@ config ACPI_REDUCED_HARDWARE_ONLY
>  	  If you are unsure what to do, do not enable this option.
>  
>  source "drivers/acpi/nfit/Kconfig"
> -source "drivers/acpi/hmat/Kconfig"
> -
> +source "drivers/acpi/numa/Kconfig"
>  source "drivers/acpi/apei/Kconfig"
>  source "drivers/acpi/dptf/Kconfig"
>  
> diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
> index 5d361e4e3405..f08a661274e8 100644
> --- a/drivers/acpi/Makefile
> +++ b/drivers/acpi/Makefile
> @@ -55,7 +55,6 @@ acpi-$(CONFIG_X86)		+= acpi_cmos_rtc.o
>  acpi-$(CONFIG_X86)		+= x86/apple.o
>  acpi-$(CONFIG_X86)		+= x86/utils.o
>  acpi-$(CONFIG_DEBUG_FS)		+= debugfs.o
> -acpi-$(CONFIG_ACPI_NUMA)	+= numa.o
>  acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
>  acpi-y				+= acpi_lpat.o
>  acpi-$(CONFIG_ACPI_LPIT)	+= acpi_lpit.o
> @@ -80,7 +79,7 @@ obj-$(CONFIG_ACPI_PROCESSOR)	+= processor.o
>  obj-$(CONFIG_ACPI)		+= container.o
>  obj-$(CONFIG_ACPI_THERMAL)	+= thermal.o
>  obj-$(CONFIG_ACPI_NFIT)		+= nfit/
> -obj-$(CONFIG_ACPI_HMAT)		+= hmat/
> +obj-$(CONFIG_ACPI_NUMA)		+= numa/
>  obj-$(CONFIG_ACPI)		+= acpi_memhotplug.o
>  obj-$(CONFIG_ACPI_HOTPLUG_IOAPIC) += ioapic.o
>  obj-$(CONFIG_ACPI_BATTERY)	+= battery.o
> diff --git a/drivers/acpi/hmat/Makefile b/drivers/acpi/hmat/Makefile
> deleted file mode 100644
> index 1c20ef36a385..000000000000
> --- a/drivers/acpi/hmat/Makefile
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -# SPDX-License-Identifier: GPL-2.0-only
> -obj-$(CONFIG_ACPI_HMAT) := hmat.o
> diff --git a/drivers/acpi/hmat/Kconfig b/drivers/acpi/numa/Kconfig
> similarity index 72%
> rename from drivers/acpi/hmat/Kconfig
> rename to drivers/acpi/numa/Kconfig
> index 95a29964dbea..d14582387ed0 100644
> --- a/drivers/acpi/hmat/Kconfig
> +++ b/drivers/acpi/numa/Kconfig
> @@ -1,4 +1,9 @@
> -# SPDX-License-Identifier: GPL-2.0
> +config ACPI_NUMA
> +	bool "NUMA support"
> +	depends on NUMA
> +	depends on (X86 || IA64 || ARM64)
> +	default y if IA64_GENERIC || IA64_SGI_SN2 || ARM64
> +
>  config ACPI_HMAT
>  	bool "ACPI Heterogeneous Memory Attribute Table Support"
>  	depends on ACPI_NUMA
> diff --git a/drivers/acpi/numa/Makefile b/drivers/acpi/numa/Makefile
> new file mode 100644
> index 000000000000..517a6c689a94
> --- /dev/null
> +++ b/drivers/acpi/numa/Makefile
> @@ -0,0 +1,3 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +obj-$(CONFIG_ACPI_NUMA) += srat.o
> +obj-$(CONFIG_ACPI_HMAT) += hmat.o
> diff --git a/drivers/acpi/hmat/hmat.c b/drivers/acpi/numa/hmat.c
> similarity index 100%
> rename from drivers/acpi/hmat/hmat.c
> rename to drivers/acpi/numa/hmat.c
> diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa/srat.c
> similarity index 100%
> rename from drivers/acpi/numa.c
> rename to drivers/acpi/numa/srat.c
> 
>