Some ARCH need to use MMIO to access PCI IO, such as ARM AARCH64 RISC-V and LOONGARCH64. In some drivers, a PCD value is added to determine whether to use MMIO.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584 Cc: Michael D Kinney <michael.d.kin...@intel.com> Cc: Liming Gao <gaolim...@byosoft.com.cn> Cc: Zhiguang Liu <zhiguang....@intel.com> Signed-off-by: Chao Li <lic...@loongson.cn> --- MdePkg/MdePkg.dec | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index ac54338089..55f5230c31 100644 --- a/MdePkg/MdePkg.dec +++ b/MdePkg/MdePkg.dec @@ -2018,6 +2018,12 @@ # @Prompt Validate ORDERED_COLLECTION structure gEfiMdePkgTokenSpaceGuid.PcdValidateOrderedCollection|FALSE|BOOLEAN|0x0000002a + ## Indicates if PCI IO translation is used. + # TRUE - PCI IO translation is enable. + # FALSE - PCI IO translation is disable. + # @Prompt Pci Io Translation Is Enabled. + gEfiMdePkgTokenSpaceGuid.PcdPciIoTranslationIsEnabled|FALSE|BOOLEAN|0x00000043 + [PcdsFixedAtBuild] ## Status code value for indicating a watchdog timer has expired. # EFI_COMPUTING_UNIT_HOST_PROCESSOR | EFI_CU_HP_EC_TIMER_EXPIRED -- 2.27.0 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#111372): https://edk2.groups.io/g/devel/message/111372 Mute This Topic: https://groups.io/mt/102644778/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
