From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 490EAC3ABBE for ; Thu, 8 May 2025 23:01:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dvnJWJbWsI3fZ58ypHpx4SU6z1dwL9zdd/CElpMtLmU=; b=GF48SJlr/chYSC mqiPPtGw0VaaubHS8PF39DomTGcrmbvr6EZfeV+I8x+3lpmdnHnr95QcQgNaqFI4P/T4nD2LMGWYp etXQW/eOFJVoYCAQKfbsWUJ/V9cl9lh703f4H0v2o3LHe+haTVW4tJxCnT077wbRdwuGBG5t5Asi3 gq/FU7Kk18O0U6PquZYItMNGYBBo4ETI5kbYUfFGk6jqpgXStIDq9StAxkSQb/RQW6+Lhvzw44fud ub1IVPXFg5wnKK2Vd8fRZAkMFY3CrieTSwYrpC9RYNZ3lyz0614WRBq8rI5Xf4MopyqVORo0Rj0xT Mxj0BI6GXdJNxiok3I9g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uDAF6-00000001wdt-4BaI; Thu, 08 May 2025 23:01:29 +0000 Received: from out-180.mta1.migadu.com ([95.215.58.180]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uDAF4-00000001wd8-0xU5 for kvm-riscv@lists.infradead.org; Thu, 08 May 2025 23:01:27 +0000 Message-ID: <4032b00c-1194-45b1-b1e5-4e9237ed7948@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1746745283; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0podyQbI7EjhnM5+iaMAYRW3Emc7fSDLhAlACBiE+s0=; b=qK6Zu79QrmwiVhmb0SUwlF/AmfkzMu19qf+dkBevTT2rvx0rNBA3gTno6MqT2qWTf4fMVs gxD/PLt/EvSGIoMy129aGZ3w/Mkk5JRRS22r4+ABA1HHZbWa7Qf9RDrbOXY3uZqUb00KyB qWyz0v9qW0KNNtOBJ9/V3dY4gkoObkE= Date: Thu, 8 May 2025 16:01:12 -0700 MIME-Version: 1.0 Subject: Re: [PATCH v6 05/14] riscv: sbi: add SBI FWFT extension calls To: =?UTF-8?B?Q2zDqW1lbnQgTMOpZ2Vy?= , Paul Walmsley , Palmer Dabbelt , Anup Patel , Atish Patra , Shuah Khan , Jonathan Corbet , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Cc: Samuel Holland , Andrew Jones , Deepak Gupta References: <20250424173204.1948385-1-cleger@rivosinc.com> <20250424173204.1948385-6-cleger@rivosinc.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Atish Patra In-Reply-To: <20250424173204.1948385-6-cleger@rivosinc.com> X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250508_160126_404845_6EE0DFD3 X-CRM114-Status: GOOD ( 18.33 ) X-BeenThere: kvm-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "kvm-riscv" Errors-To: kvm-riscv-bounces+kvm-riscv=archiver.kernel.org@lists.infradead.org T24gNC8yNC8yNSAxMDozMSBBTSwgQ2zDg8KpbWVudCBMw4PCqWdlciB3cm90ZToKPiBBZGQgRldG VCBleHRlbnNpb24gY2FsbHMuIFRoaXMgd2lsbCBiZSByYXRpZmllZCBpbiBTQkkgVjMuMCBoZW5j ZSwgaXQgaXMKPiBwcm92aWRlZCBhcyBhIHNlcGFyYXRlIGNvbW1pdCB0aGF0IGNhbiBiZSBsZWZ0 IG91dCBpZiBuZWVkZWQuCj4gCj4gU2lnbmVkLW9mZi1ieTogQ2zDqW1lbnQgTMOpZ2VyIDxjbGVn ZXJAcml2b3NpbmMuY29tPgo+IFJldmlld2VkLWJ5OiBBbmRyZXcgSm9uZXMgPGFqb25lc0B2ZW50 YW5hbWljcm8uY29tPgo+IC0tLQo+ICAgYXJjaC9yaXNjdi9rZXJuZWwvc2JpLmMgfCAyMCArKysr KysrKysrKysrKysrKysrLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDE5IGluc2VydGlvbnMoKyksIDEg ZGVsZXRpb24oLSkKPiAKPiBkaWZmIC0tZ2l0IGEvYXJjaC9yaXNjdi9rZXJuZWwvc2JpLmMgYi9h cmNoL3Jpc2N2L2tlcm5lbC9zYmkuYwo+IGluZGV4IGQ1N2U0ZGFlN2RhYy4uMDcwMDE0ZmYzNWQ0 IDEwMDY0NAo+IC0tLSBhL2FyY2gvcmlzY3Yva2VybmVsL3NiaS5jCj4gKysrIGIvYXJjaC9yaXNj di9rZXJuZWwvc2JpLmMKPiBAQCAtMjk5LDYgKzI5OSw4IEBAIHN0YXRpYyBpbnQgX19zYmlfcmZl bmNlX3YwMihpbnQgZmlkLCBjb25zdCBzdHJ1Y3QgY3B1bWFzayAqY3B1X21hc2ssCj4gICAJcmV0 dXJuIDA7Cj4gICB9Cj4gICAKPiArc3RhdGljIGJvb2wgc2JpX2Z3ZnRfc3VwcG9ydGVkOwo+ICsK CnN1cGVyIG5pdDogQ2FuIGRlY2xhcmUgdGhpcyBhbG9uZyB3aXRoIHN0cnVjdCBmd2Z0X3NldF9y ZXEgc28gdGhhdCB0aGV5IAphcmUgdG9nZXRoZXIgPyBZb3UgY2FuIG1vdmUgdGhlIHNiaV9md2Z0 X3NldCB0byBiZWxvdyB0aGUgc3RydWN0IApmd2Z0X3NldF9yZXEuCgo+ICAgLyoqCj4gICAgKiBz YmlfZndmdF9zZXQoKSAtIFNldCBhIGZlYXR1cmUgb24gdGhlIGxvY2FsIGhhcnQKPiAgICAqIEBm ZWF0dXJlOiBUaGUgZmVhdHVyZSBJRCB0byBiZSBzZXQKPiBAQCAtMzA5LDcgKzMxMSwxNSBAQCBz dGF0aWMgaW50IF9fc2JpX3JmZW5jZV92MDIoaW50IGZpZCwgY29uc3Qgc3RydWN0IGNwdW1hc2sg KmNwdV9tYXNrLAo+ICAgICovCj4gICBpbnQgc2JpX2Z3ZnRfc2V0KHUzMiBmZWF0dXJlLCB1bnNp Z25lZCBsb25nIHZhbHVlLCB1bnNpZ25lZCBsb25nIGZsYWdzKQo+ICAgewo+IC0JcmV0dXJuIC1F T1BOT1RTVVBQOwo+ICsJc3RydWN0IHNiaXJldCByZXQ7Cj4gKwo+ICsJaWYgKCFzYmlfZndmdF9z dXBwb3J0ZWQpCj4gKwkJcmV0dXJuIC1FT1BOT1RTVVBQOwo+ICsKPiArCXJldCA9IHNiaV9lY2Fs bChTQklfRVhUX0ZXRlQsIFNCSV9FWFRfRldGVF9TRVQsCj4gKwkJCWZlYXR1cmUsIHZhbHVlLCBm bGFncywgMCwgMCwgMCk7Cj4gKwo+ICsJcmV0dXJuIHNiaV9lcnJfbWFwX2xpbnV4X2Vycm5vKHJl dC5lcnJvcik7Cj4gICB9Cj4gICAKPiAgIHN0cnVjdCBmd2Z0X3NldF9yZXEgewo+IEBAIC0zNDgs NiArMzU4LDkgQEAgaW50IHNiaV9md2Z0X3NldF9jcHVtYXNrKGNvbnN0IGNwdW1hc2tfdCAqbWFz aywgdTMyIGZlYXR1cmUsCj4gICAJCS5lcnJvciA9IEFUT01JQ19JTklUKDApLAo+ICAgCX07Cj4g ICAKPiArCWlmICghc2JpX2Z3ZnRfc3VwcG9ydGVkKQo+ICsJCXJldHVybiAtRU9QTk9UU1VQUDsK PiArCj4gICAJaWYgKGZlYXR1cmUgJiBTQklfRldGVF9HTE9CQUxfRkVBVFVSRV9CSVQpCj4gICAJ CXJldHVybiAtRUlOVkFMOwo+ICAgCj4gQEAgLTY3OSw2ICs2OTIsMTEgQEAgdm9pZCBfX2luaXQg c2JpX2luaXQodm9pZCkKPiAgIAkJCXByX2luZm8oIlNCSSBEQkNOIGV4dGVuc2lvbiBkZXRlY3Rl ZFxuIik7Cj4gICAJCQlzYmlfZGVidWdfY29uc29sZV9hdmFpbGFibGUgPSB0cnVlOwo+ICAgCQl9 Cj4gKwkJaWYgKHNiaV9zcGVjX3ZlcnNpb24gPj0gc2JpX21rX3ZlcnNpb24oMywgMCkgJiYKPiAr CQkgICAgc2JpX3Byb2JlX2V4dGVuc2lvbihTQklfRVhUX0ZXRlQpKSB7Cj4gKwkJCXByX2luZm8o IlNCSSBGV0ZUIGV4dGVuc2lvbiBkZXRlY3RlZFxuIik7Cj4gKwkJCXNiaV9md2Z0X3N1cHBvcnRl ZCA9IHRydWU7Cj4gKwkJfQo+ICAgCX0gZWxzZSB7Cj4gICAJCV9fc2JpX3NldF90aW1lciA9IF9f c2JpX3NldF90aW1lcl92MDE7Cj4gICAJCV9fc2JpX3NlbmRfaXBpCT0gX19zYmlfc2VuZF9pcGlf djAxOwoKT3RoZXJ3aXNlLCBMR1RNLgoKUmV2aWV3ZWQtYnk6IEF0aXNoIFBhdHJhIDxhdGlzaHBA cml2b3NpbmMuY29tPgoKLS0gCmt2bS1yaXNjdiBtYWlsaW5nIGxpc3QKa3ZtLXJpc2N2QGxpc3Rz LmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5m by9rdm0tcmlzY3YK From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-171.mta1.migadu.com (out-171.mta1.migadu.com [95.215.58.171]) (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 D2E3F1DD525 for ; Thu, 8 May 2025 23:01:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746745287; cv=none; b=ZLnXGj/FkNxCbcdOc63TpocpZ6WTg6TFsT5Pxam/4Q2Ewhnxrb10NjRTWVyPX2kO3LTVr6QT/NrAMXN3+twlugXdd77MXgAkp/feTE5K/Hh4kXuAm2FQOfjVgXljYEWlOkPq/a9C//9CaeONVC6NO77qCcnXUqgfnk6SNEWWdgQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746745287; c=relaxed/simple; bh=oEuSarxiPIA0IneriI2U0oIkS7qkQy2iN4xv7e9uIV4=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=hZ2+8uKrmokncxjVdjFbwtVvgdTWgAZmzOxbRr3pxw4/lgDiuGicsvthrkY4AnLpRBBIjzpcckf8RvXTf8eKBJ3+TBvAIRXRC6cB3trbLdU+qq1KNnWoY/GkxboAtrchLh932MVu5fplUYwliUuecqDtz0vlUztQ39eIgxDzU1c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=qK6Zu79Q; arc=none smtp.client-ip=95.215.58.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="qK6Zu79Q" Message-ID: <4032b00c-1194-45b1-b1e5-4e9237ed7948@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1746745283; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0podyQbI7EjhnM5+iaMAYRW3Emc7fSDLhAlACBiE+s0=; b=qK6Zu79QrmwiVhmb0SUwlF/AmfkzMu19qf+dkBevTT2rvx0rNBA3gTno6MqT2qWTf4fMVs gxD/PLt/EvSGIoMy129aGZ3w/Mkk5JRRS22r4+ABA1HHZbWa7Qf9RDrbOXY3uZqUb00KyB qWyz0v9qW0KNNtOBJ9/V3dY4gkoObkE= Date: Thu, 8 May 2025 16:01:12 -0700 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH v6 05/14] riscv: sbi: add SBI FWFT extension calls To: =?UTF-8?B?Q2zDqW1lbnQgTMOpZ2Vy?= , Paul Walmsley , Palmer Dabbelt , Anup Patel , Atish Patra , Shuah Khan , Jonathan Corbet , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Cc: Samuel Holland , Andrew Jones , Deepak Gupta References: <20250424173204.1948385-1-cleger@rivosinc.com> <20250424173204.1948385-6-cleger@rivosinc.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Atish Patra In-Reply-To: <20250424173204.1948385-6-cleger@rivosinc.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT On 4/24/25 10:31 AM, Clément Léger wrote: > Add FWFT extension calls. This will be ratified in SBI V3.0 hence, it is > provided as a separate commit that can be left out if needed. > > Signed-off-by: Clément Léger > Reviewed-by: Andrew Jones > --- > arch/riscv/kernel/sbi.c | 20 +++++++++++++++++++- > 1 file changed, 19 insertions(+), 1 deletion(-) > > diff --git a/arch/riscv/kernel/sbi.c b/arch/riscv/kernel/sbi.c > index d57e4dae7dac..070014ff35d4 100644 > --- a/arch/riscv/kernel/sbi.c > +++ b/arch/riscv/kernel/sbi.c > @@ -299,6 +299,8 @@ static int __sbi_rfence_v02(int fid, const struct cpumask *cpu_mask, > return 0; > } > > +static bool sbi_fwft_supported; > + super nit: Can declare this along with struct fwft_set_req so that they are together ? You can move the sbi_fwft_set to below the struct fwft_set_req. > /** > * sbi_fwft_set() - Set a feature on the local hart > * @feature: The feature ID to be set > @@ -309,7 +311,15 @@ static int __sbi_rfence_v02(int fid, const struct cpumask *cpu_mask, > */ > int sbi_fwft_set(u32 feature, unsigned long value, unsigned long flags) > { > - return -EOPNOTSUPP; > + struct sbiret ret; > + > + if (!sbi_fwft_supported) > + return -EOPNOTSUPP; > + > + ret = sbi_ecall(SBI_EXT_FWFT, SBI_EXT_FWFT_SET, > + feature, value, flags, 0, 0, 0); > + > + return sbi_err_map_linux_errno(ret.error); > } > > struct fwft_set_req { > @@ -348,6 +358,9 @@ int sbi_fwft_set_cpumask(const cpumask_t *mask, u32 feature, > .error = ATOMIC_INIT(0), > }; > > + if (!sbi_fwft_supported) > + return -EOPNOTSUPP; > + > if (feature & SBI_FWFT_GLOBAL_FEATURE_BIT) > return -EINVAL; > > @@ -679,6 +692,11 @@ void __init sbi_init(void) > pr_info("SBI DBCN extension detected\n"); > sbi_debug_console_available = true; > } > + if (sbi_spec_version >= sbi_mk_version(3, 0) && > + sbi_probe_extension(SBI_EXT_FWFT)) { > + pr_info("SBI FWFT extension detected\n"); > + sbi_fwft_supported = true; > + } > } else { > __sbi_set_timer = __sbi_set_timer_v01; > __sbi_send_ipi = __sbi_send_ipi_v01; Otherwise, LGTM. Reviewed-by: Atish Patra From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F1DE3C3ABC5 for ; Thu, 8 May 2025 23:01:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=KRz1aROewrx2sLg8MvuQ5MijKBXi6PVu4c9KDZJYIr0=; b=dZ8bBHGd8pypPn 1cQ+pVp1p+uMQ2aeVEgmG+xwR518IlxsFFrFmRVlniIeWxtfg4QmN9OjT/TEePjRPjNp9G4jdA4aU QN7IlcVk+F1XyJjPQa2G7J5ZSv38t6GPpaldVmnt0Hl49vxEK6Eodp2bhSxV8mofCQKwr+8QQ8zSu FsFe7vv029D9yU5RWGPZYJaAdARHLiUST/Ll0MMz6NWvLOfdKCIc6rRaEPYa/3YsNgVw3GbcMAz5w SPh64FdYeaYwgmV/DpJa+hspSO9YRcBQA5lX8A1wrFiSL0YTRP79YO4J825Hpi/UmnwLm6O0yEm85 H8dfKhqN4Ag325W4KTjA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uDAF7-00000001we7-2Ezi; Thu, 08 May 2025 23:01:29 +0000 Received: from out-177.mta1.migadu.com ([2001:41d0:203:375::b1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uDAF4-00000001wd7-0xYH for linux-riscv@lists.infradead.org; Thu, 08 May 2025 23:01:28 +0000 Message-ID: <4032b00c-1194-45b1-b1e5-4e9237ed7948@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1746745283; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0podyQbI7EjhnM5+iaMAYRW3Emc7fSDLhAlACBiE+s0=; b=qK6Zu79QrmwiVhmb0SUwlF/AmfkzMu19qf+dkBevTT2rvx0rNBA3gTno6MqT2qWTf4fMVs gxD/PLt/EvSGIoMy129aGZ3w/Mkk5JRRS22r4+ABA1HHZbWa7Qf9RDrbOXY3uZqUb00KyB qWyz0v9qW0KNNtOBJ9/V3dY4gkoObkE= Date: Thu, 8 May 2025 16:01:12 -0700 MIME-Version: 1.0 Subject: Re: [PATCH v6 05/14] riscv: sbi: add SBI FWFT extension calls To: =?UTF-8?B?Q2zDqW1lbnQgTMOpZ2Vy?= , Paul Walmsley , Palmer Dabbelt , Anup Patel , Atish Patra , Shuah Khan , Jonathan Corbet , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Cc: Samuel Holland , Andrew Jones , Deepak Gupta References: <20250424173204.1948385-1-cleger@rivosinc.com> <20250424173204.1948385-6-cleger@rivosinc.com> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Atish Patra In-Reply-To: <20250424173204.1948385-6-cleger@rivosinc.com> X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250508_160126_404733_D2736925 X-CRM114-Status: GOOD ( 18.33 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gNC8yNC8yNSAxMDozMSBBTSwgQ2zDg8KpbWVudCBMw4PCqWdlciB3cm90ZToKPiBBZGQgRldG VCBleHRlbnNpb24gY2FsbHMuIFRoaXMgd2lsbCBiZSByYXRpZmllZCBpbiBTQkkgVjMuMCBoZW5j ZSwgaXQgaXMKPiBwcm92aWRlZCBhcyBhIHNlcGFyYXRlIGNvbW1pdCB0aGF0IGNhbiBiZSBsZWZ0 IG91dCBpZiBuZWVkZWQuCj4gCj4gU2lnbmVkLW9mZi1ieTogQ2zDqW1lbnQgTMOpZ2VyIDxjbGVn ZXJAcml2b3NpbmMuY29tPgo+IFJldmlld2VkLWJ5OiBBbmRyZXcgSm9uZXMgPGFqb25lc0B2ZW50 YW5hbWljcm8uY29tPgo+IC0tLQo+ICAgYXJjaC9yaXNjdi9rZXJuZWwvc2JpLmMgfCAyMCArKysr KysrKysrKysrKysrKysrLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDE5IGluc2VydGlvbnMoKyksIDEg ZGVsZXRpb24oLSkKPiAKPiBkaWZmIC0tZ2l0IGEvYXJjaC9yaXNjdi9rZXJuZWwvc2JpLmMgYi9h cmNoL3Jpc2N2L2tlcm5lbC9zYmkuYwo+IGluZGV4IGQ1N2U0ZGFlN2RhYy4uMDcwMDE0ZmYzNWQ0 IDEwMDY0NAo+IC0tLSBhL2FyY2gvcmlzY3Yva2VybmVsL3NiaS5jCj4gKysrIGIvYXJjaC9yaXNj di9rZXJuZWwvc2JpLmMKPiBAQCAtMjk5LDYgKzI5OSw4IEBAIHN0YXRpYyBpbnQgX19zYmlfcmZl bmNlX3YwMihpbnQgZmlkLCBjb25zdCBzdHJ1Y3QgY3B1bWFzayAqY3B1X21hc2ssCj4gICAJcmV0 dXJuIDA7Cj4gICB9Cj4gICAKPiArc3RhdGljIGJvb2wgc2JpX2Z3ZnRfc3VwcG9ydGVkOwo+ICsK CnN1cGVyIG5pdDogQ2FuIGRlY2xhcmUgdGhpcyBhbG9uZyB3aXRoIHN0cnVjdCBmd2Z0X3NldF9y ZXEgc28gdGhhdCB0aGV5IAphcmUgdG9nZXRoZXIgPyBZb3UgY2FuIG1vdmUgdGhlIHNiaV9md2Z0 X3NldCB0byBiZWxvdyB0aGUgc3RydWN0IApmd2Z0X3NldF9yZXEuCgo+ICAgLyoqCj4gICAgKiBz YmlfZndmdF9zZXQoKSAtIFNldCBhIGZlYXR1cmUgb24gdGhlIGxvY2FsIGhhcnQKPiAgICAqIEBm ZWF0dXJlOiBUaGUgZmVhdHVyZSBJRCB0byBiZSBzZXQKPiBAQCAtMzA5LDcgKzMxMSwxNSBAQCBz dGF0aWMgaW50IF9fc2JpX3JmZW5jZV92MDIoaW50IGZpZCwgY29uc3Qgc3RydWN0IGNwdW1hc2sg KmNwdV9tYXNrLAo+ICAgICovCj4gICBpbnQgc2JpX2Z3ZnRfc2V0KHUzMiBmZWF0dXJlLCB1bnNp Z25lZCBsb25nIHZhbHVlLCB1bnNpZ25lZCBsb25nIGZsYWdzKQo+ICAgewo+IC0JcmV0dXJuIC1F T1BOT1RTVVBQOwo+ICsJc3RydWN0IHNiaXJldCByZXQ7Cj4gKwo+ICsJaWYgKCFzYmlfZndmdF9z dXBwb3J0ZWQpCj4gKwkJcmV0dXJuIC1FT1BOT1RTVVBQOwo+ICsKPiArCXJldCA9IHNiaV9lY2Fs bChTQklfRVhUX0ZXRlQsIFNCSV9FWFRfRldGVF9TRVQsCj4gKwkJCWZlYXR1cmUsIHZhbHVlLCBm bGFncywgMCwgMCwgMCk7Cj4gKwo+ICsJcmV0dXJuIHNiaV9lcnJfbWFwX2xpbnV4X2Vycm5vKHJl dC5lcnJvcik7Cj4gICB9Cj4gICAKPiAgIHN0cnVjdCBmd2Z0X3NldF9yZXEgewo+IEBAIC0zNDgs NiArMzU4LDkgQEAgaW50IHNiaV9md2Z0X3NldF9jcHVtYXNrKGNvbnN0IGNwdW1hc2tfdCAqbWFz aywgdTMyIGZlYXR1cmUsCj4gICAJCS5lcnJvciA9IEFUT01JQ19JTklUKDApLAo+ICAgCX07Cj4g ICAKPiArCWlmICghc2JpX2Z3ZnRfc3VwcG9ydGVkKQo+ICsJCXJldHVybiAtRU9QTk9UU1VQUDsK PiArCj4gICAJaWYgKGZlYXR1cmUgJiBTQklfRldGVF9HTE9CQUxfRkVBVFVSRV9CSVQpCj4gICAJ CXJldHVybiAtRUlOVkFMOwo+ICAgCj4gQEAgLTY3OSw2ICs2OTIsMTEgQEAgdm9pZCBfX2luaXQg c2JpX2luaXQodm9pZCkKPiAgIAkJCXByX2luZm8oIlNCSSBEQkNOIGV4dGVuc2lvbiBkZXRlY3Rl ZFxuIik7Cj4gICAJCQlzYmlfZGVidWdfY29uc29sZV9hdmFpbGFibGUgPSB0cnVlOwo+ICAgCQl9 Cj4gKwkJaWYgKHNiaV9zcGVjX3ZlcnNpb24gPj0gc2JpX21rX3ZlcnNpb24oMywgMCkgJiYKPiAr CQkgICAgc2JpX3Byb2JlX2V4dGVuc2lvbihTQklfRVhUX0ZXRlQpKSB7Cj4gKwkJCXByX2luZm8o IlNCSSBGV0ZUIGV4dGVuc2lvbiBkZXRlY3RlZFxuIik7Cj4gKwkJCXNiaV9md2Z0X3N1cHBvcnRl ZCA9IHRydWU7Cj4gKwkJfQo+ICAgCX0gZWxzZSB7Cj4gICAJCV9fc2JpX3NldF90aW1lciA9IF9f c2JpX3NldF90aW1lcl92MDE7Cj4gICAJCV9fc2JpX3NlbmRfaXBpCT0gX19zYmlfc2VuZF9pcGlf djAxOwoKT3RoZXJ3aXNlLCBMR1RNLgoKUmV2aWV3ZWQtYnk6IEF0aXNoIFBhdHJhIDxhdGlzaHBA cml2b3NpbmMuY29tPgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVh ZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1y aXNjdgo=