[PATCH v3 20/30] drivers/arm: Implement acpi_fill_madt

Simon Glass sjg at chromium.org
Thu Sep 12 02:58:21 CEST 2024


Hi Patrick,

On Wed, 11 Sept 2024 at 00:25, Patrick Rudolph
<patrick.rudolph at 9elements.com> wrote:
>
> Fill the MADT table in the GIC driver and armv8 CPU driver to
> drop SoC specific code. While the GIC only needs devicetree
> data, the CPU driver needs additional information stored in
> the cpu_plat struct.
>
> While on it update the only board making use of the existing
> drivers and writing ACPI MADT in mainboard code.
>
> TEST: Booted on QEMU sbsa using driver model generated MADT.
> Signed-off-by: Patrick Rudolph <patrick.rudolph at 9elements.com>
> Cc: Simon Glass <sjg at chromium.org>
> ---
>  arch/arm/lib/acpi_table.c |  1 +
>  arch/arm/lib/gic-v3-its.c | 89 ++++++++++++++++++++++++++++++++++++++-
>  drivers/cpu/armv8_cpu.c   | 27 ++++++++++++
>  include/cpu.h             | 27 +++++++++++-
>  4 files changed, 141 insertions(+), 3 deletions(-)

Reviewed-by: Simon Glass <sjg at chromium.org>

Are the GIC values available by probing, or are they just 'known', and
dependent on the compatible string?

Regards,
Simon


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