From nobody Tue Feb 10 10:59:17 2026 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 74DE113C3E4 for ; Tue, 7 May 2024 07:44:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715067852; cv=none; b=dk7KBZhXsTnQh1FBp6KEeHOES6y1BRnu/ZX8fo7PCZ4PscKMxKoMBvgxYfhqI5adYv+Hk2/k0ibV82W0XgntF4MiUri3zAxPb7lzjpEKp3fzz12F7VfLS78y7h+ux60eDG+P0U3x/H5VWoiJJC2UlX2XCIIM7IIH+9OdS++cAE8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715067852; c=relaxed/simple; bh=dE9VGICyh+huStmvgxP1XR5gfGCKHKoL5yk42rNw5vc=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=K3ce0C8xheyYUJZ31IOM0kAKTGIqqGQ04erw57PvOR3MMzZ5qnbA937nVIqNuzmSw0ickPO4jJ0uVd3W66mFHmuhEX54lLuHG1uCFniNCTqTFBcAKZZVB8kI9aDbG8TgrnuoKHPZMiVZ1SqcXHmWgo0amQXkmWOhLJqEfOdv6Gs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 916f4ebe0c4511ef9305a59a3cc225df-20240507 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.37,REQID:fa673317-ca0d-47ab-870d-6b19f269f72a,IP:-13 ,URL:0,TC:0,Content:0,EDM:-30,RT:0,SF:-9,FILE:0,BULK:0,RULE:Release_Ham,AC TION:release,TS:-52 X-CID-INFO: VERSION:1.1.37,REQID:fa673317-ca0d-47ab-870d-6b19f269f72a,IP:-13,U RL:0,TC:0,Content:0,EDM:-30,RT:0,SF:-9,FILE:0,BULK:0,RULE:EDM_GN8D19FE,ACT ION:release,TS:-52 X-CID-META: VersionHash:6f543d0,CLOUDID:54c47b824903fa8c38e66720df0171e7,BulkI D:2405071544025Y87I3AH,BulkQuantity:0,Recheck:0,SF:66|38|24|17|19|43|74|10 2,TC:nil,Content:0,EDM:2,IP:nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC: nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_FSI,TF_CID_SPAM_SNR,TF_CID_SPAM_FAS,TF_CID_SPAM_FSD X-CTIC-Tags: HR_CC_COUNT, HR_CC_DOMAIN_COUNT, HR_CC_NO_NAME, HR_CTE_8B, HR_CTT_MISS HR_DATE_H, HR_DATE_WKD, HR_DATE_ZONE, HR_FROM_DIGIT_LEN, HR_FROM_NAME HR_SJ_DIGIT_LEN, HR_SJ_LANG, HR_SJ_LEN, HR_SJ_LETTER, HR_SJ_NOR_SYM HR_SJ_PHRASE, HR_SJ_PHRASE_LEN, HR_SJ_WS, HR_TO_COUNT, HR_TO_DOMAIN_COUNT HR_TO_NO_NAME, IP_TRUSTED, SRC_TRUSTED, DN_TRUSTED, SA_TRUSTED SA_EXISTED, SN_TRUSTED, SN_EXISTED, SPF_NOPASS, DKIM_NOPASS DMARC_NOPASS, CIE_BAD, CIE_GOOD_SPF, GTI_FG_BS, GTI_RG_INFO GTI_C_BU, AMN_T1, AMN_GOOD, AMN_C_TI, AMN_C_BU ABX_MISS_RDNS X-UUID: 916f4ebe0c4511ef9305a59a3cc225df-20240507 X-User: lijun01@kylinos.cn Received: from localhost.localdomain [(39.156.73.14)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_256_GCM_SHA384 256/256) with ESMTP id 1017552724; Tue, 07 May 2024 15:44:00 +0800 From: Li Jun To: chenhuacai@kernel.org, kernel@xen0n.name, lvjianmin@loongson.cn, dongbiao@loongson.cn, zhangbaoqi@loongson.cn Cc: lijun01@kylinos.cn, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v2] LoongArch: Update the flush cache policy Date: Tue, 7 May 2024 15:43:57 +0800 Message-Id: <20240507074357.2156083-1-lijun01@kylinos.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" fix when LoongArch s3 resume, Can't find image information Signed-off-by: Li Jun Signed-off-by: Baoqi Zhang Signed-off-by: Jianmin Lv Signed-off-by: Biao Dong --- arch/loongarch/mm/cache.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/arch/loongarch/mm/cache.c b/arch/loongarch/mm/cache.c index 6be04d36ca07..89eeb9a97dd5 100644 --- a/arch/loongarch/mm/cache.c +++ b/arch/loongarch/mm/cache.c @@ -63,6 +63,27 @@ static void flush_cache_leaf(unsigned int leaf) } while (--nr_nodes > 0); } =20 +static void flush_cache_last_level(unsigned int leaf) +{ + u64 addr; + int i, j, nr_nodes; + struct cache_desc *cdesc =3D current_cpu_data.cache_leaves + leaf; + + nr_nodes =3D loongson_sysconf.nr_nodes; + + addr =3D CSR_DMW1_BASE; + iocsr_write32(0x1, 0x280); + do { + for (i =3D 0; i < (cdesc->ways * 3); i++) { + for (j =3D 0; j < (cdesc->sets); j++) { + *(volatile u32 *)addr; + addr +=3D cdesc->linesz; + } + } + addr +=3D 0x100000000000; + } while (--nr_nodes > 0); +} + asmlinkage __visible void __flush_cache_all(void) { int leaf; @@ -71,7 +92,7 @@ asmlinkage __visible void __flush_cache_all(void) =20 leaf =3D cache_present - 1; if (cache_inclusive(cdesc + leaf)) { - flush_cache_leaf(leaf); + flush_cache_last_level(leaf); return; } =20 --=20 2.34.1