| Message ID | a20337bb-9e83-e387-7d10-a2843f7286b3@boldcoder.com |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Patch: Make ACPI subsystem provide CEDT table | expand |
On Thu, Jan 27, 2022 at 11:15 AM Robert Kiraly <me@boldcoder.com> wrote: > > This is a simple ACPI patch. I'm submitting a revised version to > linux-acpi per Rafael Wysocki and linux-cxl per Dan Williams. > > Thunderbird has added CRs so "patch -p1 -l" is needed. > > ==== start of patch ==== > Subject: Make ACPI subsystem provide CEDT table > Signed-off-by: Robert Kiraly <me@boldcoder.com> > > This is a simple patch to the ACPI subsystem. The patch 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 at > the initrd stage. 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. > > I certify compliance with Developer’s Certificate of Origin 1.1 > as listed in: > https://www.kernel.org/doc/html/v4.10/process/submitting-patches. > html > > --- linux-5.16.old/drivers/acpi/tables.c > +++ linux-5.16/drivers/acpi/tables.c > @@ -500,7 +500,7 @@ > 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_CEDT, ACPI_SIG_NHLT }; > > #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header) > > ==== end of patch ==== I've queued up this change for 5.18, but I needed to rebase the patch and I changed its subject and changelog. Thanks!
On 02/04/2022 10:45AM, Rafael J. Wysocki wrote: > > I've queued up this change for 5.18, but I needed to rebase the patch > and I changed its subject and changelog. > > Thanks! Thank you for your time and patience in discussion of issues.
--- linux-5.16.old/drivers/acpi/tables.c +++ linux-5.16/drivers/acpi/tables.c @@ -500,7 +500,7 @@ 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_CEDT, ACPI_SIG_NHLT }; #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)
This is a simple ACPI patch. I'm submitting a revised version to linux-acpi per Rafael Wysocki and linux-cxl per Dan Williams. Thunderbird has added CRs so "patch -p1 -l" is needed. ==== start of patch ==== Subject: Make ACPI subsystem provide CEDT table Signed-off-by: Robert Kiraly <me@boldcoder.com> This is a simple patch to the ACPI subsystem. The patch 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 at the initrd stage. 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. I certify compliance with Developer’s Certificate of Origin 1.1 as listed in: https://www.kernel.org/doc/html/v4.10/process/submitting-patches. html ==== end of patch ====