linux-kernel - [PATCH 14/20] ARC: entry: ARcompact EV

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Message-Id: <20230815004813.555115-15-vgupta@kernel.org>
Date:   Mon, 14 Aug 2023 17:48:07 -0700
From:   Vineet Gupta <vgupta@...nel.org>
To:     linux-snps-arc@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org,
        Shahab Vahedi <Shahab.Vahedi@...opsys.com>,
        Alexey Brodkin <abrodkin@...opsys.com>,
        Vineet Gupta <vgupta@...nel.org>
Subject: [PATCH 14/20] ARC: entry: ARcompact EV_ProtV to use r10 directly

Signed-off-by: Vineet Gupta <vgupta@...nel.org>
---
 arch/arc/kernel/entry-compact.S | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arc/kernel/entry-compact.S b/arch/arc/kernel/entry-compact.S
index 5cb0cd7e4eab..77f0090554c5 100644
--- a/arch/arc/kernel/entry-compact.S
+++ b/arch/arc/kernel/entry-compact.S
@@ -254,9 +254,8 @@ END(handle_interrupt_level1)
 
 ENTRY(EV_TLBProtV)
 
-	EXCEPTION_PROLOGUE
+	EXCEPTION_PROLOGUE	; ECR returned in r10
 
-	mov r2, r10	; ECR set into r10 already
 	lr  r0, [efa]	; Faulting Data address (not part of pt_regs saved above)
 
 	; Exception auto-disables further Intr/exceptions.
@@ -273,8 +272,7 @@ ENTRY(EV_TLBProtV)
 	;   -Access Violation	: 00_23_(00|01|02|03)_00
 	;			         x  r  w  r+w
 	;   -Unaligned Access	: 00_23_04_00
-	;
-	bbit1 r2, ECR_C_BIT_PROTV_MISALIG_DATA, 4f
+	bbit1 r10, ECR_C_BIT_PROTV_MISALIG_DATA, 4f
 
 	;========= (6a) Access Violation Processing ========
 	bl  do_page_fault
-- 
2.34.1