On 10 January 2018 at 06:38, Michael Zimmermann <[email protected]> wrote: > This currently isn't needed by anything in the edk2 tree but > it's useful for externally maintained platforms which have > to set this register e.g. to disable alignment aborts. > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Michael Zimmermann <[email protected]>
Thanks Michael You missed the AArch64 version, could you add it there as well? Otherwise, the libraries get out of sync. > --- > ArmPkg/Include/Library/ArmLib.h | 6 ++++++ > ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S | 4 ++++ > ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm | 3 +++ > 3 files changed, 13 insertions(+) > > diff --git a/ArmPkg/Include/Library/ArmLib.h b/ArmPkg/Include/Library/ArmLib.h > index 24e84c7a1965..ffda50e9d767 100644 > --- a/ArmPkg/Include/Library/ArmLib.h > +++ b/ArmPkg/Include/Library/ArmLib.h > @@ -558,6 +558,12 @@ ArmReadSctlr ( > VOID > ); > > +VOID > +EFIAPI > +ArmWriteSctlr ( > + IN UINT32 Value > + ); > + > UINTN > EFIAPI > ArmReadHVBar ( > diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S > b/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S > index a0b5ed500298..149b57e059ee 100644 > --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S > +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.S > @@ -153,6 +153,10 @@ ASM_FUNC(ArmReadSctlr) > mrc p15, 0, r0, c1, c0, 0 @ Read SCTLR into R0 (Read control > register configuration data) > bx lr > > +ASM_FUNC(ArmWriteSctlr) > + mcr p15, 0, r0, c1, c0, 0 > + bx lr > + > ASM_FUNC(ArmReadCpuActlr) > mrc p15, 0, r0, c1, c0, 1 > bx lr > diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm > b/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm > index 85b0feee20d4..219140c22b13 100644 > --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm > +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupport.asm > @@ -155,6 +155,9 @@ > mrc p15, 0, r0, c1, c0, 0 // Read SCTLR into R0 (Read control > register configuration data) > bx lr > > + RVCT_ASM_EXPORT ArmWriteSctlr > + mcr p15, 0, r0, c1, c0, 0 > + bx lr > > RVCT_ASM_EXPORT ArmReadCpuActlr > mrc p15, 0, r0, c1, c0, 1 > -- > 2.15.1 > _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
