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[118.160.134.247]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2297865e03esm84282455ad.146.2025.04.07.11.09.22 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 07 Apr 2025 11:09:25 -0700 (PDT) From: Andy Chiu To: linux-riscv@lists.infradead.org, alexghiti@rivosinc.com, palmer@dabbelt.com Cc: Andy Chiu , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , linux-kernel@vger.kernel.org, Alexandre Ghiti , puranjay12@gmail.com, paul.walmsley@sifive.com, greentime.hu@sifive.com, nick.hu@sifive.com, nylon.chen@sifive.com, eric.lin@sifive.com, vicent.chen@sifive.com, zong.li@sifive.com, yongxuan.wang@sifive.com, samuel.holland@sifive.com, olivia.chu@sifive.com, c2232430@gmail.com Subject: [PATCH v4 08/12] riscv: add a data fence for CMODX in the kernel mode Date: Tue, 8 Apr 2025 02:08:32 +0800 Message-Id: <20250407180838.42877-8-andybnac@gmail.com> X-Mailer: git-send-email 2.39.3 (Apple Git-145) In-Reply-To: <20250407180838.42877-1-andybnac@gmail.com> References: <20250407180838.42877-1-andybnac@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250407_110926_811673_5EB55615 X-CRM114-Status: GOOD ( 14.73 ) 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-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org UklTQy1WIHNwZWMgZXhwbGljaXRseSBjYWxscyBvdXQgdGhhdCBhIGxvY2FsIGZlbmNlLmkgaXMg bm90IGVub3VnaCBmb3IKdGhlIGNvZGUgbW9kaWZpY2F0aW9uIHRvIGJlIHZpc2JsZSBmcm9tIGEg cmVtb3RlIGhhcnQuIEluIGZhY3QsIGl0CnN0YXRlczoKClRvIG1ha2UgYSBzdG9yZSB0byBpbnN0 cnVjdGlvbiBtZW1vcnkgdmlzaWJsZSB0byBhbGwgUklTQy1WIGhhcnRzLCB0aGUKd3JpdGluZyBo YXJ0IGFsc28gaGFzIHRvIGV4ZWN1dGUgYSBkYXRhIEZFTkNFIGJlZm9yZSByZXF1ZXN0aW5nIHRo YXQgYWxsCnJlbW90ZSBSSVNDLVYgaGFydHMgZXhlY3V0ZSBhIEZFTkNFLkkuCgpBbHRob3VnaCBj dXJyZW50IHJpc2N2IGRyaXZlcnMgZm9yIElQSSB1c2Ugb3JkZXJlZCBNTUlPIHdoZW4gc2VuZGlu ZyBJUElzCmluIG9yZGVyIHRvIHN5bmNocm9uaXplIHRoZSBhY3Rpb24gYmV0d2VlbiBwcmV2aW91 cyBjc2Qgd3JpdGVzLCByaXNjdgpkb2VzIG5vdCByZXN0cmljdCBpdHNlbGYgdG8gYW55IHBhcnRp Y3VsYXIgZmxhdm9yIG9mIElQSS4gQW55IGRyaXZlciBvcgpmaXJtd2FyZSBpbXBsZW1lbnRhdGlv biB0aGF0IGRvZXMgbm90IG9yZGVyIGRhdGEgd3JpdGVzIGJlZm9yZSB0aGUgSVBJCm1heSBwb3Nl IGEgcmlzayBmb3IgY29kZS1tb2RpZnlpbmcgcmFjZS4KClRodXMsIGFkZCBhIGZlbmNlIGhlcmUg dG8gb3JkZXIgZGF0YSB3cml0ZXMgYmVmb3JlIG1ha2luZyB0aGUgSVBJLgoKU2lnbmVkLW9mZi1i eTogQW5keSBDaGl1IDxhbmR5Ym5hY0BnbWFpbC5jb20+ClJldmlld2VkLWJ5OiBCasO2cm4gVMO2 cGVsIDxiam9ybkByaXZvc2luYy5jb20+Ci0tLQpDaGFuZ2Vsb2cgdjQ6CiAtIEV4cGxhaW4gbW9y ZSBpbiBjb21taXQgbXNnIGFuZCBhZGQgQmrDtnJuJ3MgUi1iCi0tLQogYXJjaC9yaXNjdi9tbS9j YWNoZWZsdXNoLmMgfCAxNSArKysrKysrKysrKysrKy0KIDEgZmlsZSBjaGFuZ2VkLCAxNCBpbnNl cnRpb25zKCspLCAxIGRlbGV0aW9uKC0pCgpkaWZmIC0tZ2l0IGEvYXJjaC9yaXNjdi9tbS9jYWNo ZWZsdXNoLmMgYi9hcmNoL3Jpc2N2L21tL2NhY2hlZmx1c2guYwppbmRleCBiODE2NzI3Mjk4ODcu LmIyZTRiODE3NjNmOCAxMDA2NDQKLS0tIGEvYXJjaC9yaXNjdi9tbS9jYWNoZWZsdXNoLmMKKysr IGIvYXJjaC9yaXNjdi9tbS9jYWNoZWZsdXNoLmMKQEAgLTI0LDcgKzI0LDIwIEBAIHZvaWQgZmx1 c2hfaWNhY2hlX2FsbCh2b2lkKQogCiAJaWYgKG51bV9vbmxpbmVfY3B1cygpIDwgMikKIAkJcmV0 dXJuOwotCWVsc2UgaWYgKHJpc2N2X3VzZV9zYmlfZm9yX3JmZW5jZSgpKQorCisJLyoKKwkgKiBN YWtlIHN1cmUgYWxsIHByZXZpb3VzIHdyaXRlcyB0byB0aGUgRCQgYXJlIG9yZGVyZWQgYmVmb3Jl IG1ha2luZworCSAqIHRoZSBJUEkuIFRoZSBSSVNDLVYgc3BlYyBzdGF0ZXMgdGhhdCBhIGhhcnQg bXVzdCBleGVjdXRlIGEgZGF0YSBmZW5jZQorCSAqIGJlZm9yZSB0cmlnZ2VyaW5nIGEgcmVtb3Rl IGZlbmNlLmkgaW4gb3JkZXIgdG8gbWFrZSB0aGUgbW9kaWZpY2F0aW9uCisJICogdmlzYWJsZSBm b3IgcmVtb3RlIGhhcnRzLgorCSAqCisJICogSVBJcyBvbiBSSVNDLVYgYXJlIHRyaWdnZXJlZCBi eSBNTUlPIHdyaXRlcyB0byBlaXRoZXIgQ0xJTlQgb3IKKwkgKiBTLUlNU0lDLCBzbyB0aGUgZmVu Y2UgZW5zdXJlcyBwcmV2aW91cyBkYXRhIHdyaXRlcyAiaGFwcGVuIGJlZm9yZSIKKwkgKiB0aGUg TU1JTy4KKwkgKi8KKwlSSVNDVl9GRU5DRSh3LCBvKTsKKworCWlmIChyaXNjdl91c2Vfc2JpX2Zv cl9yZmVuY2UoKSkKIAkJc2JpX3JlbW90ZV9mZW5jZV9pKE5VTEwpOwogCWVsc2UKIAkJb25fZWFj aF9jcHUoaXBpX3JlbW90ZV9mZW5jZV9pLCBOVUxMLCAxKTsKLS0gCjIuMzkuMyAoQXBwbGUgR2l0 LTE0NSkKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwps aW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgtcmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwpo dHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2Cg==