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| author | Rebecca Cran <rebecca@nuviainc.com> | 2021-02-07 17:52:39 -0700 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-02-08 19:35:23 +0000 |
| commit | 93ff7a4e8e11d25f523dbddeecf20ed591297cc1 (patch) | |
| tree | f18dc167eff8b42cfba7ccf36eee68ba12708268 /ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S | |
| parent | 827a71cc9efb2d10733cfa59590b4d205ba97abe (diff) | |
| download | edk2-93ff7a4e8e11d25f523dbddeecf20ed591297cc1.tar.gz edk2-93ff7a4e8e11d25f523dbddeecf20ed591297cc1.tar.bz2 edk2-93ff7a4e8e11d25f523dbddeecf20ed591297cc1.zip | |
ArmPkg: Fix the return type of the ReadCCSIDR function
When CCIDX is supported, the Current Cache Size ID Register contains
data above 32 bits: namely the number of sets. Avoid truncating this
by returning a UINTN instead of UINT32. On AARCH32, the expanded
number of sets data can be read via the CCSIDR2 register.
Also, add Doxygen comments for the function.
Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Diffstat (limited to 'ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S')
| -rw-r--r-- | ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S index a60a2f6341..af61dbee52 100644 --- a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S @@ -64,7 +64,7 @@ ASM_FUNC(ArmReadIdMmfr4) mrc p15,0,r0,c0,c2,6 @ Read ID_MMFR4 Register
bx lr
-// UINT32
+// UINTN
// ReadCCSIDR (
// IN UINT32 CSSELR
// )
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