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@xxxxxxxxxx> > --- > 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 >
