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Thu, 11 Apr 2024 10:53:42 -0700 (PDT) Received: from debug.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id a25-20020a63bd19000000b005e43cb66a7asm1356148pgf.87.2024.04.11.10.53.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 10:53:42 -0700 (PDT) Date: Thu, 11 Apr 2024 10:53:39 -0700 From: Deepak Gupta To: Sami Tolvanen Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, nathan@kernel.org, ndesaulniers@google.com, morbo@google.com, justinstitt@google.com, andy.chiu@sifive.com, hankuan.chen@sifive.com, guoren@kernel.org, greentime.hu@sifive.com, cleger@rivosinc.com, apatel@ventanamicro.com, ajones@ventanamicro.com, conor.dooley@microchip.com, mchitale@ventanamicro.com, dbarboza@ventanamicro.com, waylingii@gmail.com, sameo@rivosinc.com, alexghiti@rivosinc.com, akpm@linux-foundation.org, shikemeng@huaweicloud.com, rppt@kernel.org, charlie@rivosinc.com, xiao.w.wang@intel.com, willy@infradead.org, jszhang@kernel.org, leobras@redhat.com, songshuaishuai@tinylab.org, haxel@fzi.de, samuel.holland@sifive.com, namcaov@gmail.com, bjorn@rivosinc.com, cuiyunhui@bytedance.com, wangkefeng.wang@huawei.com, falcon@tinylab.org, viro@zeniv.linux.org.uk, bhe@redhat.com, chenjiahao16@huawei.com, hca@linux.ibm.com, arnd@arndb.de, kent.overstreet@linux.dev, boqun.feng@gmail.com, oleg@redhat.com, paulmck@kernel.org, broonie@kernel.org, rick.p.edgecombe@intel.com Subject: Re: [RFC PATCH 02/12] riscv: add landing pad for asm routines. Message-ID: References: <20240409061043.3269676-1-debug@rivosinc.com> <20240409061043.3269676-3-debug@rivosinc.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240411_105347_192803_85A2F561 X-CRM114-Status: GOOD ( 17.08 ) 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 T24gVGh1LCBBcHIgMTEsIDIwMjQgYXQgMDU6MTU6MTdQTSArMDAwMCwgU2FtaSBUb2x2YW5lbiB3 cm90ZToKPk9uIFR1ZSwgQXByIDksIDIwMjQgYXQgNjoxMuKAr0FNIERlZXBhayBHdXB0YSA8ZGVi dWdAcml2b3NpbmMuY29tPiB3cm90ZToKPj4KPj4gU1lNXyogbWFjcm9zIGFyZSB1c2VkIHRvIGRl ZmluZSBhc3NlbWJseSByb3V0aW5lcy4gSW4gdGhpcyBwYXRjaCBzZXJpZXMsCj4+IHJlLWRlZmlu ZSB0aG9zZSBtYWNyb3MgaW4gcmlzYy12IGFyY2ggc3BlY2lmaWMgaW5jbHVkZSBmaWxlIHRvIGlu Y2x1ZGUKPj4gYSBsYW5kaW5nIHBhZCBpbnN0cnVjdGlvbiBhdCB0aGUgYmVnaW5uaW5nLiBUaGlz IGlzIGRvbmUgb25seSB3aGVuIHRoZQo+PiBjb21waWxlciBmbGFnIGZvciBsYW5kaW5nIHBhZCBp cyBlbmFibGVkIChpLmUuIF9fcmlzY3ZfemljZmlscCkuCj4+Cj4+IFNpZ25lZC1vZmYtYnk6IERl ZXBhayBHdXB0YSA8ZGVidWdAcml2b3NpbmMuY29tPgo+PiAtLS0KPj4gIGFyY2gvcmlzY3YvaW5j bHVkZS9hc20vbGlua2FnZS5oIHwgNDIgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysK Pj4gIDEgZmlsZSBjaGFuZ2VkLCA0MiBpbnNlcnRpb25zKCspCj4+Cj4+IGRpZmYgLS1naXQgYS9h cmNoL3Jpc2N2L2luY2x1ZGUvYXNtL2xpbmthZ2UuaCBiL2FyY2gvcmlzY3YvaW5jbHVkZS9hc20v bGlua2FnZS5oCj4+IGluZGV4IDllODhiYTIzY2QyYi4uYmI0M2FlN2RhZGViIDEwMDY0NAo+PiAt LS0gYS9hcmNoL3Jpc2N2L2luY2x1ZGUvYXNtL2xpbmthZ2UuaAo+PiArKysgYi9hcmNoL3Jpc2N2 L2luY2x1ZGUvYXNtL2xpbmthZ2UuaAo+PiBAQCAtNiw3ICs2LDQ5IEBACj4+ICAjaWZuZGVmIF9B U01fUklTQ1ZfTElOS0FHRV9ICj4+ICAjZGVmaW5lIF9BU01fUklTQ1ZfTElOS0FHRV9ICj4+Cj4+ ICsjaWZkZWYgX19BU1NFTUJMWV9fCj4+ICsjaW5jbHVkZSA8YXNtL2Fzc2VtYmxlci5oPgo+PiAr I2VuZGlmCj4+ICsKPj4gICNkZWZpbmUgX19BTElHTiAgICAgICAgICAgICAgICAuYmFsaWduIDQK Pj4gICNkZWZpbmUgX19BTElHTl9TVFIgICAgIi5iYWxpZ24gNCIKPj4KPj4gKyNpZmRlZiBfX3Jp c2N2X3ppY2ZpbHAKPj4gKy8qCj4+ICsgKiBBIGxhbmRpbmcgcGFkIGluc3RydWN0aW9uIGlzIG5l ZWRlZCBhdCBzdGFydCBvZiBhc20gcm91dGluZXMKPj4gKyAqIHJlLWRlZmluZSBtYWNyb3MgZm9y IGFzbSByb3V0aW5lcyB0byBoYXZlIGEgbGFuZGluZyBwYWQgYXQKPj4gKyAqIHRoZSBiZWdpbm5p bmcgb2YgZnVuY3Rpb24uIEN1cnJlbnRseSB1c2UgbGFiZWwgdmFsdWUgb2YgMHgxLgo+PiArICog RXZlbnR1YWxseSwgbGFiZWwgc2hvdWxkIGJlIGNhbGN1bGF0ZWQgYXMgYSBoYXNoIG92ZXIgZnVu Y3Rpb24KPj4gKyAqIHNpZ25hdHVyZS4KPj4gKyAqLwo+Cj5JIGhhdmVuJ3Qgc2VlbiB0aGUgY29t cGlsZXIgaW1wbGVtZW50YXRpb24gZm9yIGZpbmUtZ3JhaW5lZCBaaWNmaWxwCj55ZXQsIGJ1dCBp biB0aGUga2VybmVsIGF0IGxlYXN0LCB0aGlzIHdvdWxkIGlkZWFsbHkgcmV1c2UgYXMgbXVjaCBv Zgo+dGhlIEtDRkkgcGx1bWJpbmcgYXMgcG9zc2libGUuIEZvciBleGFtcGxlLCBzaW5jZSBvbmx5 IEMgY29kZSBoYXMgdHlwZQo+aW5mb3JtYXRpb24sIHdlIGxlZnQgdGhlIHR5cGUgaGFzaCBjb21w dXRhdGlvbiBmb3IgdGhlIGNvbXBpbGVyLCB3aGljaAo+YWxsb3dzIGFzc2VtYmx5IGZ1bmN0aW9u cyB0byBqdXN0IHJlZmVyZW5jZSB0aGUgYXBwcm9wcmlhdGUKPl9fa2NmaV90eXBlaWRfKiBzeW1i b2wuCgpGaW5lLWdyYWluZWQgY29tcGlsZXIgc3VwcG9ydCBoYXNuJ3QgbWFkZSBpdCBpbiB5ZXQu CgpGb3IgcmVmZXJlbmNlLCBjb21waWxlciB0aGF0IEkndmUgYmVlbiB1c2luZwpodHRwczovL2dp dGh1Yi5jb20vc2lmaXZlL3Jpc2N2LWdudS10b29sY2hhaW4vdHJlZS9jZmktZGV2CgpIb25lc3Rs eSBzcGVha2luZywgSSBkaWRuJ3QgcmVhbGl6ZSB0aGF0IGtjZmkgcGx1bWJpbmcgaGFzIG1hZGUg aXQgaW50bwpyaXNjdiBhcyB3ZWxsLiBJIHJlYWxpemVkIHRoYXQganVzdCBhZnRlciBzZW5kaW5n IHRoZSBwYXRjaGVzLgoKSW4gcHJpbmNpcGxlLCBJIGFncmVlIGl0IHNob3VsZCBjb252ZXJnZSB3 aXRoIHNvZnR3YXJlIGJhc2VkIGtjZmkgc2NoZW1lCmFzIG11Y2ggYXMgcG9zc2libGUuIEhvd2V2 ZXIgYmxvY2tlciB0aGF0IEkgc2VlIGlzIGBoYXNoYCBpcyBwbGFjZWQganVzdApiZWZvcmUgZnVu Y3Rpb24uIFRoaXMgYnJlYWtzIGZvciBjb2RlIG1hcHBlZCBhcyBleGVjdXRlIG9ubHkgc2NlbmFy aW9zLgpBbmQgaWRlYWxseSB3b3VsZCBsaWtlIHRvIGhhdmUgaW1tZWRpYXRlcyBhdCBjYWxsc2l0 ZXMgaW5zdGVhZCBvZiBsb2FkcwoocHVyZWx5IHBlcmYgcmVhc29uIGFuZCBub3Qgc2VjdXJpdHkp LgoKQnV0IHllcyBpbiBuZXh0IHZlcnNpb24sIEknbGwgdGFrZSBhIGxvb2sgYW5kIHRyeSB0byBj b252ZXJnZSBhcyBtdWNoIGFzCnBvc3NpYmxlLgoKPgo+U2FtaQoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0Cmxp bnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcv bWFpbG1hbi9saXN0aW5mby9saW51eC1yaXNjdgo=