From nobody Wed Dec 17 17:27:30 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 772F9C5AD4C for ; Thu, 23 Nov 2023 09:53:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233586AbjKWJxO (ORCPT ); Thu, 23 Nov 2023 04:53:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232617AbjKWJxH (ORCPT ); Thu, 23 Nov 2023 04:53:07 -0500 Received: from smtpbgbr1.qq.com (smtpbgbr1.qq.com [54.207.19.206]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8225D10D8; Thu, 23 Nov 2023 01:45:56 -0800 (PST) X-QQ-mid: bizesmtp68t1700732180t6v5pcfw Received: from HX01040049.powercore.com.cn ( [125.94.202.196]) by bizesmtp.qq.com (ESMTP) with id ; Thu, 23 Nov 2023 17:36:15 +0800 (CST) X-QQ-SSF: 01400000000000508000000A0000000 X-QQ-FEAT: G3NsQplooNEqMvcyjlUA5SXVKY0py3l7/lOMYf/u8L8Rme6STHXbb+/Rj8CbQ 5ZzCJLQxgE8qCMCFU+b3jY4rCh6oCNqfvbsP2qBbMgFp8oRTVxCvTIIFym2Uz5gKpEDdZtO 9QOeSPZkREKQdWEn3xi7vfwak++IirBoAydSSAr580oumVHMj2npiHx6cadQ9U6jaKQM25i MkyFxoQ7lBYpHUpPwu/PzdM3zYslJb0L5PofJIUABPlrqXuuncKOvopRXC8D07JE5NSNeBO Jmv48gnvQDCsGY2UT6mv02JhUgu03xxq929KAoWGV4ydhqq/qDaNa2fYX2wERQrz+t2M/zr ccTDv592x7QuoU/1CpNP5haArNTFgzN+SZTGv8j0Fyu7koNNsljnlYN1ohY0hP3yyKQHehR 7BPeTa8Mvh8= X-QQ-GoodBg: 2 X-BIZMAIL-ID: 2317734377399214772 From: Zhao Ke To: mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, fbarrat@linux.ibm.com, ajd@linux.ibm.com, arnd@arndb.de, gregkh@linuxfoundation.org Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, shenghui.qu@shingroup.cn, luming.yu@shingroup.cn, dawei.li@shingroup.cn, Zhao Ke Subject: [PATCH v1] powerpc: Add PVN support for HeXin C2000 processor Date: Thu, 23 Nov 2023 17:36:11 +0800 Message-Id: <20231123093611.98313-1-ke.zhao@shingroup.cn> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:shingroup.cn:qybglogicsvrsz:qybglogicsvrsz3a-0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" HeXin Tech Co. has applied for a new PVN from the OpenPower Community for its new processor C2000. The OpenPower has assigned a new PVN and this newly assigned PVN is 0x0066, add pvr register related support for this PVN. Signed-off-by: Zhao Ke Link: https://discuss.openpower.foundation/t/how-to-get-a-new-pvr-for-proce= ssors-follow-power-isa/477/10 --- v0 -> v1: - Fix .cpu_name with the correct description --- --- arch/powerpc/include/asm/reg.h | 1 + arch/powerpc/kernel/cpu_specs_book3s_64.h | 15 +++++++++++++++ arch/powerpc/kvm/book3s_pr.c | 1 + arch/powerpc/mm/book3s64/pkeys.c | 3 ++- arch/powerpc/platforms/powernv/subcore.c | 3 ++- drivers/misc/cxl/cxl.h | 3 ++- 6 files changed, 23 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 4ae4ab9090a2..7fd09f25452d 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1361,6 +1361,7 @@ #define PVR_POWER8E 0x004B #define PVR_POWER8NVL 0x004C #define PVR_POWER8 0x004D +#define PVR_HX_C2000 0x0066 #define PVR_POWER9 0x004E #define PVR_POWER10 0x0080 #define PVR_BE 0x0070 diff --git a/arch/powerpc/kernel/cpu_specs_book3s_64.h b/arch/powerpc/kerne= l/cpu_specs_book3s_64.h index c370c1b804a9..367c9f6d9be5 100644 --- a/arch/powerpc/kernel/cpu_specs_book3s_64.h +++ b/arch/powerpc/kernel/cpu_specs_book3s_64.h @@ -238,6 +238,21 @@ static struct cpu_spec cpu_specs[] __initdata =3D { .machine_check_early =3D __machine_check_early_realmode_p8, .platform =3D "power8", }, + { /* 2.07-compliant processor, HeXin C2000 processor */ + .pvr_mask =3D 0xffffffff, + .pvr_value =3D 0x00660000, + .cpu_name =3D "POWER8 (raw)", + .cpu_features =3D CPU_FTRS_POWER8, + .cpu_user_features =3D COMMON_USER_POWER8, + .cpu_user_features2 =3D COMMON_USER2_POWER8, + .mmu_features =3D MMU_FTRS_POWER8, + .icache_bsize =3D 128, + .dcache_bsize =3D 128, + .cpu_setup =3D __setup_cpu_power8, + .cpu_restore =3D __restore_cpu_power8, + .machine_check_early =3D __machine_check_early_realmode_p8, + .platform =3D "power8", + }, { /* 3.00-compliant processor, i.e. Power9 "architected" mode */ .pvr_mask =3D 0xffffffff, .pvr_value =3D 0x0f000005, diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 9118242063fb..5b92619a05fd 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -604,6 +604,7 @@ static void kvmppc_set_pvr_pr(struct kvm_vcpu *vcpu, u3= 2 pvr) case PVR_POWER8: case PVR_POWER8E: case PVR_POWER8NVL: + case PVR_HX_C2000: case PVR_POWER9: vcpu->arch.hflags |=3D BOOK3S_HFLAG_MULTI_PGSIZE | BOOK3S_HFLAG_NEW_TLBIE; diff --git a/arch/powerpc/mm/book3s64/pkeys.c b/arch/powerpc/mm/book3s64/pk= eys.c index 125733962033..c38f378e1942 100644 --- a/arch/powerpc/mm/book3s64/pkeys.c +++ b/arch/powerpc/mm/book3s64/pkeys.c @@ -89,7 +89,8 @@ static int __init scan_pkey_feature(void) unsigned long pvr =3D mfspr(SPRN_PVR); =20 if (PVR_VER(pvr) =3D=3D PVR_POWER8 || PVR_VER(pvr) =3D=3D PVR_POWER8E || - PVR_VER(pvr) =3D=3D PVR_POWER8NVL || PVR_VER(pvr) =3D=3D PVR_POWER9) + PVR_VER(pvr) =3D=3D PVR_POWER8NVL || PVR_VER(pvr) =3D=3D PVR_POWER9= || + PVR_VER(pvr) =3D=3D PVR_HX_C2000) pkeys_total =3D 32; } } diff --git a/arch/powerpc/platforms/powernv/subcore.c b/arch/powerpc/platfo= rms/powernv/subcore.c index 191424468f10..58e7331e1e7e 100644 --- a/arch/powerpc/platforms/powernv/subcore.c +++ b/arch/powerpc/platforms/powernv/subcore.c @@ -425,7 +425,8 @@ static int subcore_init(void) =20 if (pvr_ver !=3D PVR_POWER8 && pvr_ver !=3D PVR_POWER8E && - pvr_ver !=3D PVR_POWER8NVL) + pvr_ver !=3D PVR_POWER8NVL && + pvr_ver !=3D PVR_HX_C2000) return 0; =20 /* diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 0562071cdd4a..9ac2991b29c7 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -836,7 +836,8 @@ static inline bool cxl_is_power8(void) { if ((pvr_version_is(PVR_POWER8E)) || (pvr_version_is(PVR_POWER8NVL)) || - (pvr_version_is(PVR_POWER8))) + (pvr_version_is(PVR_POWER8)) || + (pvr_version_is(PVR_HX_C2000))) return true; return false; } --=20 2.34.1