[PATCH v9 01/11] ACPI/IORT: Add temporary RMR node flag definitions

[Lorenzo Pieralisi]

On Mon, Apr 04, 2022 at 01:41:59PM +0100, Shameer Kolothum wrote:
> IORT rev E.d introduces more details into the RMR node Flags
> field. Add temporary definitions to describe and access these
> Flags field until ACPICA header is updated to support E.d.
> 
> This patch can be reverted once the include/acpi/actbl2.h has
> all the relevant definitions.
> 
> Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi at huawei.com>
> ---
> Please find the ACPICA E.d related changes pull request here,
> https://github.com/acpica/acpica/pull/765
> 
> This is now merged to acpica:master.

I assume we can drop this patch when ACPICA Linuxized patches hit
Rafael's tree.

> ---
>  drivers/acpi/arm64/iort.c | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> index f2f8f05662de..fd06cf43ba31 100644
> --- a/drivers/acpi/arm64/iort.c
> +++ b/drivers/acpi/arm64/iort.c
> @@ -25,6 +25,30 @@
>  #define IORT_IOMMU_TYPE		((1 << ACPI_IORT_NODE_SMMU) |	\
>  				(1 << ACPI_IORT_NODE_SMMU_V3))
>  
> +/*
> + * The following RMR related definitions are temporary and
> + * can be removed once ACPICA headers support IORT rev E.d
> + */
> +#ifndef ACPI_IORT_RMR_REMAP_PERMITTED
> +#define ACPI_IORT_RMR_REMAP_PERMITTED	(1)
> +#endif
> +
> +#ifndef ACPI_IORT_RMR_ACCESS_PRIVILEGE
> +#define ACPI_IORT_RMR_ACCESS_PRIVILEGE	(1 << 1)
> +#endif
> +
> +#ifndef ACPI_IORT_RMR_ACCESS_ATTRIBUTES
> +#define ACPI_IORT_RMR_ACCESS_ATTRIBUTES(flags)	(((flags) >> 2) & 0xFF)
> +#endif
> +
> +#ifndef ACPI_IORT_RMR_ATTR_DEVICE_GRE
> +#define ACPI_IORT_RMR_ATTR_DEVICE_GRE	0x03
> +#endif
> +
> +#ifndef ACPI_IORT_RMR_ATTR_NORMAL_IWB_OWB
> +#define ACPI_IORT_RMR_ATTR_NORMAL_IWB_OWB	0x05
> +#endif
> +
>  struct iort_its_msi_chip {
>  	struct list_head	list;
>  	struct fwnode_handle	*fw_node;
> -- 
> 2.25.1
>