[PATCH 1/1] arch: arm: Program GIC LPI configuration table

[Tom Rini]

On Wed, Dec 04, 2019 at 09:14:02PM -0800, Vladimir Olovyannikov wrote:

> From: Bharat Kumar Reddy Gooty <bharat.gooty at broadcom.com>
> 
> Programs the following:
> 1. Redistributor PROCBASER configuration table (which
> is common for all redistributors)
> 2. Redistributor pending table (PENDBASER), for all the
> available redistributors.
> 
> Signed-off-by: Bharat Kumar Reddy Gooty <bharat.gooty at broadcom.com>
> Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov at broadcom.com>
> ---
>  arch/arm/Kconfig              |  11 +++
>  arch/arm/include/asm/gic-v3.h | 134 ++++++++++++++++++++++++++++++++++
>  arch/arm/lib/Makefile         |   3 +
>  arch/arm/lib/gic-v3-its.c     | 100 +++++++++++++++++++++++++
>  4 files changed, 248 insertions(+)
>  create mode 100644 arch/arm/include/asm/gic-v3.h
>  create mode 100644 arch/arm/lib/gic-v3-its.c
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index f96841c777..cf46aa867d 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -61,6 +61,17 @@ config LNX_KRNL_IMG_TEXT_OFFSET_BASE
>  endif
>  endif
>  
> +config GIC_V3_ITS
> +	bool "ARM GICV3 ITS"
> +	default n

Note that n is the default, we can drop this.

> diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
> index 9de9a9acee..942ed1c73a 100644
> --- a/arch/arm/lib/Makefile
> +++ b/arch/arm/lib/Makefile
> @@ -52,6 +52,9 @@ obj-$(CONFIG_FSL_LAYERSCAPE) += ccn504.o
>  ifneq ($(CONFIG_GICV2)$(CONFIG_GICV3),)
>  obj-y	+= gic_64.o
>  endif
> +ifdef CONFIG_GIC_V3_ITS
> +obj-y	+= gic-v3-its.o
> +endif
>  obj-y	+= interrupts_64.o
>  else
>  obj-y	+= interrupts.o

This part of the Makefile can be tricky to read.  We should be able to
use the normal formation of 'obj-$(CONFIG_GIC_V3_ITS)' in this spot in
the file as we don't have other difficult to express concisely in make
constraints around.

Other than that, please make sure the code is checkpatch clean, I don't
have any commentary on the implementation itself but I gather it's
tested on your end.  Thanks!

-- 
Tom
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