RE: [PATCH 3/8] ACPI/IORT: Support CANWBS memory access flag
From: Shameerali Kolothum Thodi <hidden>
Date: 2024-08-09 14:37:34
Also in:
kvm, linux-acpi, linux-iommu, linux-patches
-----Original Message----- From: Jason Gunthorpe <jgg@nvidia.com> Sent: Wednesday, August 7, 2024 12:41 AM To: acpica-devel@lists.linux.dev; Alex Williamson [off-list ref]; Guohanjun (Hanjun Guo) [off-list ref]; iommu@lists.linux.dev; Joerg Roedel [off-list ref]; Kevin Tian [off-list ref]; kvm@vger.kernel.org; Len Brown [off-list ref]; linux-acpi@vger.kernel.org; linux-arm- kernel@lists.infradead.org; Lorenzo Pieralisi [off-list ref]; Rafael J. Wysocki [off-list ref]; Robert Moore [off-list ref]; Robin Murphy [off-list ref]; Sudeep Holla [off-list ref]; Will Deacon [off-list ref] Cc: Eric Auger <eric.auger@redhat.com>; Jean-Philippe Brucker <jean- philippe@linaro.org>; Moritz Fischer [off-list ref]; Michael Shavit [off-list ref]; Nicolin Chen [off-list ref]; patches@lists.linux.dev; Shameerali Kolothum Thodi [off-list ref] Subject: [PATCH 3/8] ACPI/IORT: Support CANWBS memory access flag From: Nicolin Chen <redacted> 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.
...
quoted hunk ↗ jump to hunk
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