Messages in this thread Patch in this message | | | Subject | One-line patch: Make ACPI provide CEDT table | From | Robert Kiraly <> | Date | Tue, 11 Jan 2022 21:20:09 -0800 |
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The attached patch is a one-line change to linux-pm 5.16-rc8.
The patch simply adds ACPI_SIG_CEDT to table_sigs[] in "drivers/acpi/tables.c".
Presently, CXL code isn't able to make use of the CEDT table. Subsequent to the change, the CEDT table can be used.
If a developer plans to use the CEDT table to program the CXL ports, this change is needed. Otherwise, it isn't expected to make a difference.
If this should go to linux-acpi as opposed to linux-pm, please excuse the error.
Regards, Robert (the Old Coder)
Subject: Make ACPI subsystem provide CEDT table Author: Robert Kiraly <me@boldcoder.com>
This is a one-line patch to the "linux-pm" ACPI subsystem 5.16- rc8.
The patch simply adds ACPI_SIG_CEDT to table_sigs[] in "drivers/ acpi/tables.c".
Presently, CXL code isn't able to make use of the CEDT table. Subsequent to the change, the CEDT table can be used.
If a developer plans to use the CEDT table to program the CXL ports, this change is needed. Otherwise, it isn't expected to make a difference.
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 71419eb16e09..3cccd7a12f22 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -500,7 +500,7 @@ static const char table_sigs[][ACPI_NAMESEG_SIZE] __initconst = { ACPI_SIG_WDDT, ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT, ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT, ACPI_SIG_IORT, ACPI_SIG_NFIT, ACPI_SIG_HMAT, ACPI_SIG_PPTT, - ACPI_SIG_NHLT }; + ACPI_SIG_NHLT, ACPI_SIG_CEDT }; #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header) === end of patch ==== | |