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From: "Leif Lindholm" <leif@nuviainc.com>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Subject: [PATCH 7/9] ArmPkg/ArmLib: delete AArch64 version of ArmReadIdPfr1
Date: Fri, 18 Dec 2020 14:16:15 +0000	[thread overview]
Message-ID: <20201218141617.26947-8-leif@nuviainc.com> (raw)
In-Reply-To: <20201218141617.26947-1-leif@nuviainc.com>

The AArch64 version of ArmReadIdPfr1 is not used by any code in tree,
or in edk2-platforms. Delete it.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Leif Lindholm <leif@nuviainc.com>
---
 ArmPkg/Library/ArmLib/AArch64/AArch64Support.S | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
index 199374ff59e3..7f942c29ea66 100644
--- a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
+++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
@@ -453,14 +453,6 @@ ASM_FUNC(ArmReadIdPfr0)
   ret
 
 
-// Q: id_aa64pfr1_el1 not defined yet. What does this function want to access?
-// A: used to setup arch timer. Check if we have security extensions, permissions to set stuff.
-//    See: ArmPkg/Library/ArmArchTimerLib/AArch64/ArmArchTimerLib.c
-//    Not defined yet, but stick in here for now, should read all zeros.
-ASM_FUNC(ArmReadIdPfr1)
-  mrs   x0, id_aa64pfr1_el1   // Read ID_PFR1 Register
-  ret
-
 // VOID ArmWriteHcr(UINTN Hcr)
 ASM_FUNC(ArmWriteHcr)
   msr   hcr_el2, x0        // Write the passed HCR value
-- 
2.20.1


  parent reply	other threads:[~2020-12-18 14:16 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-18 14:16 [PATCH 0/9] ArmPkg: Start cleaning up ID register handling Leif Lindholm
2020-12-18 14:16 ` [PATCH 1/9] ArmPkg/ArmLib: add ArmHasGicSystemRegisters () helper function Leif Lindholm
2020-12-18 14:16 ` [PATCH 2/9] ArmPkg: use ID register helper for ArmGicArch(Sec)Lib Leif Lindholm
2020-12-18 14:16 ` [PATCH 3/9] ArmPkg: remove duplicated ARM/AArch64 ArmGicArchLib sources Leif Lindholm
2020-12-18 14:16 ` [PATCH 4/9] ArmPkg: remove duplicated ARM/AArch64 ArmGicArchSecLib sources Leif Lindholm
2020-12-18 14:16 ` [PATCH 5/9] ArmPkg: add ArmHasSecurityExtensions () helper function Leif Lindholm
2020-12-18 14:16 ` [PATCH 6/9] ArmPkg: use helper to check for Security extensions in ArmArchTimerLib Leif Lindholm
2020-12-18 14:16 ` Leif Lindholm [this message]
2020-12-18 14:16 ` [PATCH 8/9] ArmPkg/ArmLib: rename AArch64 variant of ArmReadIdPfr0 Leif Lindholm
2020-12-18 14:16 ` [PATCH 9/9] ArmPkg/ArmLib: move ArmReadIdPfr0/1 into private header ArmV7Lib.h Leif Lindholm
2020-12-18 15:02 ` [PATCH 0/9] ArmPkg: Start cleaning up ID register handling Ard Biesheuvel
2020-12-18 15:36   ` Leif Lindholm

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