From: Stafford Horne <shorne@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Linux OpenRISC <linux-openrisc@vger.kernel.org>,
Stafford Horne <shorne@gmail.com>,
Jonas Bonn <jonas@southpole.se>,
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Subject: [PATCH 1/3] openrisc: Cache invalidation cleanup
Date: Sat, 23 May 2026 06:36:16 +0100 [thread overview]
Message-ID: <20260523053624.630443-2-shorne@gmail.com> (raw)
In-Reply-To: <20260523053624.630443-1-shorne@gmail.com>
When working on new cache invalidation functions I noticed these
cleanups in the cache initialization code. Remove unused and commented
instructions to avoid confusion.
Signed-off-by: Stafford Horne <shorne@gmail.com>
---
arch/openrisc/kernel/head.S | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/arch/openrisc/kernel/head.S b/arch/openrisc/kernel/head.S
index bd760066f1cd..65f474c2df4f 100644
--- a/arch/openrisc/kernel/head.S
+++ b/arch/openrisc/kernel/head.S
@@ -852,26 +852,19 @@ _ic_enable:
l.sll r14,r30,r28
/* Establish number of cache sets
- r16 contains number of cache sets
r28 contains log(# of cache sets)
*/
l.andi r26,r24,SPR_ICCFGR_NCS
l.srli r28,r26,3
- l.ori r30,r0,1
- l.sll r16,r30,r28
/* Invalidate IC */
l.addi r6,r0,0
l.sll r5,r14,r28
-// l.mul r5,r14,r16
-// l.trap 1
-// l.addi r5,r0,IC_SIZE
1:
l.mtspr r0,r6,SPR_ICBIR
l.sfne r6,r5
l.bf 1b
l.add r6,r6,r14
- // l.addi r6,r6,IC_LINE
/* Enable IC */
l.mfspr r6,r0,SPR_SR
@@ -918,13 +911,10 @@ _dc_enable:
l.sll r14,r30,r28
/* Establish number of cache sets
- r16 contains number of cache sets
r28 contains log(# of cache sets)
*/
l.andi r26,r24,SPR_DCCFGR_NCS
l.srli r28,r26,3
- l.ori r30,r0,1
- l.sll r16,r30,r28
/* Invalidate DC */
l.addi r6,r0,0
--
2.53.0
next prev parent reply other threads:[~2026-05-23 5:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-23 5:36 [PATCH 0/3] OpenRISC Fixes for jump_label SMP Syncing Stafford Horne
2026-05-23 5:36 ` Stafford Horne [this message]
2026-05-23 5:36 ` [PATCH 2/3] openrisc: Add full instruction cache invalidate functions Stafford Horne
2026-05-23 5:36 ` [PATCH 3/3] openrisc: Fix jump_label smp syncing Stafford Horne
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