[PATCH 3/8] ACPI/IORT: Support CANWBS memory access flag

[Shameerali Kolothum Thodi]

> -----Original Message-----
> From: Jason Gunthorpe <jgg at nvidia.com>
> Sent: Wednesday, August 7, 2024 12:41 AM
> To: acpica-devel at lists.linux.dev; Alex Williamson
> <alex.williamson at redhat.com>; Guohanjun (Hanjun Guo)
> <guohanjun at huawei.com>; iommu at lists.linux.dev; Joerg Roedel
> <joro at 8bytes.org>; Kevin Tian <kevin.tian at intel.com>; kvm at vger.kernel.org;
> Len Brown <lenb at kernel.org>; linux-acpi at vger.kernel.org; linux-arm-
> kernel at lists.infradead.org; Lorenzo Pieralisi <lpieralisi at kernel.org>; Rafael J.
> Wysocki <rafael at kernel.org>; Robert Moore <robert.moore at intel.com>; Robin
> Murphy <robin.murphy at arm.com>; Sudeep Holla <sudeep.holla at arm.com>;
> Will Deacon <will at kernel.org>
> Cc: Eric Auger <eric.auger at redhat.com>; Jean-Philippe Brucker <jean-
> philippe at linaro.org>; Moritz Fischer <mdf at kernel.org>; Michael Shavit
> <mshavit at google.com>; Nicolin Chen <nicolinc at nvidia.com>;
> patches at lists.linux.dev; Shameerali Kolothum Thodi
> <shameerali.kolothum.thodi at huawei.com>
> Subject: [PATCH 3/8] ACPI/IORT: Support CANWBS memory access flag
> 
> From: Nicolin Chen <nicolinc at nvidia.com>
> 
> The IORT spec, Issue E.f (April 2024), adds a new CANWBS bit to the Memory
> Access Flag field in the Memory Access Properties table, mainly for a PCI
> Root Complex.
...
> diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
> index e27958ef82642f..56ce7fc35312c8 100644
> --- a/include/acpi/actbl2.h
> +++ b/include/acpi/actbl2.h
> @@ -524,6 +524,7 @@ struct acpi_iort_memory_access {
> 
>  #define ACPI_IORT_MF_COHERENCY          (1)
>  #define ACPI_IORT_MF_ATTRIBUTES         (1<<1)
> +#define ACPI_IORT_MF_CANWBS             (1<<2)

I think we need to update Document number to E.f in IORT section in 
this file. Also isn't it this file normally gets updated through ACPICA pull ?

Thanks,
Shameer