[14/20] ARC: entry: ARcompact EV_ProtV to use r10 directly

Message ID	20230815004813.555115-15-vgupta@kernel.org
State	New
Headers	show Return-Path: <linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> From: Vineet Gupta <vgupta@kernel.org> To: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org, Shahab Vahedi <Shahab.Vahedi@synopsys.com>, Alexey Brodkin <abrodkin@synopsys.com>, Vineet Gupta <vgupta@kernel.org> Subject: [PATCH 14/20] ARC: entry: ARcompact EV_ProtV to use r10 directly Date: Mon, 14 Aug 2023 17:48:07 -0700 Message-Id: <20230815004813.555115-15-vgupta@kernel.org> In-Reply-To: <20230815004813.555115-1-vgupta@kernel.org> References: <20230815004813.555115-1-vgupta@kernel.org> MIME-Version: 1.0 preview: Signed-off-by: Vineet Gupta <vgupta@kernel.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 @@ -2 [...] Content analysis details: (-5.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [139.178.84.217 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.2 DKIMWL_WL_HIGH DKIMwl.org - High trust sender Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" <linux-snps-arc-bounces@lists.infradead.org> Errors-To: linux-snps-arc-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org
Series	ARC updates \| expand [00/20] ARC updates [01/20] ARC: uaccess: remove arc specific out-of-line handles for -Os [02/20] ARC: uaccess: use optimized generic __strnlen_user/__strncpy_from_user [03/20] ARC: uaccess: elide unaliged handling if hardware supports [04/20] ARCv2: memset: don't prefetch for len == 0 which happens a alot [05/20] ARC: boot log: eliminate struct cpuinfo_arc #1: mm [06/20] ARC: boot log: eliminate struct cpuinfo_arc #2: cache [07/20] ARC: boot log: eliminate struct cpuinfo_arc #3: don't export [08/20] ARC: boot log: eliminate struct cpuinfo_arc #4: boot log per ISA [09/20] ARC: entry: use gp to cache task pointer (vs. r25) [10/20] ARC: kernel stack: INIT_THREAD need not setup @init_stack in @ksp [11/20] ARC: __switch_to: asm with dwarf ops (vs. inline asm) [12/20] ARC: __switch_to: move ksp to thread_info from thread_struct [13/20] ARC: entry: rework (non-functional) [14/20] ARC: entry: ARcompact EV_ProtV to use r10 directly [15/20] ARC: entry: EV_MachineCheck dont re-read ECR [16/20] ARC: entry: Add more common chores to EXCEPTION_PROLOGUE [17/20] ARC: entry: replace 8 byte OR with 4 byte BSET [18/20] ARC: entry: replace 8 byte ADD.ne with 4 byte ADD2.ne [19/20] ARCv2: entry: rearrange pt_regs slightly [20/20] ARC: pt_regs: create seperate type for ecr

Message ID

20230815004813.555115-15-vgupta@kernel.org

State

New

Headers

From: Vineet Gupta <vgupta@kernel.org>
To: linux-snps-arc@lists.infradead.org
Cc: linux-kernel@vger.kernel.org,
	Shahab Vahedi <Shahab.Vahedi@synopsys.com>,
	Alexey Brodkin <abrodkin@synopsys.com>,
	Vineet Gupta <vgupta@kernel.org>
Subject: [PATCH 14/20] ARC: entry: ARcompact EV_ProtV to use r10 directly
Date: Mon, 14 Aug 2023 17:48:07 -0700
Message-Id: <20230815004813.555115-15-vgupta@kernel.org>
In-Reply-To: <20230815004813.555115-1-vgupta@kernel.org>
References: <20230815004813.555115-1-vgupta@kernel.org>
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Series

ARC updates | expand

Commit Message

Vineet Gupta Aug. 15, 2023, 12:48 a.m. UTC

Signed-off-by: Vineet Gupta <vgupta@kernel.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

[14/20] ARC: entry: ARcompact EV_ProtV to use r10 directly

Commit Message

Patch