Cache maintenance on ARMv7 systems and up should be done by virtual address if the purpose is to manage the cached state of contents of memory. Set/way operations are only intended to maintain the caches themselves, e.g., to ensure that the contents of dirty cachelines are brought to main memory before the core is powered off entirely.
UEFI on ARM is typically not involved in the latter at all, and any cache maintenance it does is to ensure that the memory it occupies and modifies remains in a consistent state with respect to the caches. So let's deprecate the set/way routines now that we have removed all uses of it in the core code. Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org> --- ArmPkg/Include/Library/ArmLib.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLib.h index 5a27b7c2fc27..8330339302ca 100644 --- a/ArmPkg/Include/Library/ArmLib.h +++ b/ArmPkg/Include/Library/ArmLib.h @@ -156,6 +156,8 @@ ArmIsMpCore ( VOID ); +#ifndef DISABLE_NEW_DEPRECATED_INTERFACES + VOID EFIAPI ArmInvalidateDataCache ( @@ -169,6 +171,8 @@ ArmCleanInvalidateDataCache ( VOID ); +#endif + VOID EFIAPI ArmCleanDataCache ( -- 2.17.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#54852): https://edk2.groups.io/g/devel/message/54852 Mute This Topic: https://groups.io/mt/71562852/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
