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a="346479870" X-IronPort-AV: E=Sophos;i="5.99,222,1677571200"; d="scan'208";a="346479870" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2023 06:48:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10690"; a="693087845" X-IronPort-AV: E=Sophos;i="5.99,222,1677571200"; d="scan'208";a="693087845" Received: from mkavai-mobl2.amr.corp.intel.com (HELO [10.212.196.194]) ([10.212.196.194]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2023 06:48:09 -0700 Message-ID: <81c476f4-ef62-e4a6-0033-8a46a15379fd@intel.com> Date: Mon, 24 Apr 2023 06:48:09 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [RFC 45/48] RISC-V: ioremap: Implement for arch specific ioremap hooks Content-Language: en-US To: Atish Kumar Patra Cc: linux-kernel@vger.kernel.org, Rajnesh Kanwal , Alexandre Ghiti , Andrew Jones , Andrew Morton , Anup Patel , Atish Patra , =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= , Suzuki K Poulose , Will Deacon , Marc Zyngier , Sean Christopherson , linux-coco@lists.linux.dev, Dylan Reid , abrestic@rivosinc.com, Samuel Ortiz , Christoph Hellwig , Conor Dooley , Greg Kroah-Hartman , Guo Ren , Heiko Stuebner , Jiri Slaby , kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, Mayuresh Chitale , Palmer Dabbelt , Paolo Bonzini , Paul Walmsley , Uladzislau Rezki References: <20230419221716.3603068-1-atishp@rivosinc.com> <20230419221716.3603068-46-atishp@rivosinc.com> <69ba1760-a079-fd8f-b079-fcb01e3eedec@intel.com> From: Dave Hansen In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230424_064824_353055_D5235345 X-CRM114-Status: GOOD ( 24.20 ) 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 T24gNC8yMS8yMyAxMjoyNCwgQXRpc2ggS3VtYXIgUGF0cmEgd3JvdGU6Cj4gT24gRnJpLCBBcHIg MjEsIDIwMjMgYXQgMzo0NuKAr0FNIERhdmUgSGFuc2VuIDxkYXZlLmhhbnNlbkBpbnRlbC5jb20+ IHdyb3RlOj4+IFRoaXMgY2FsbGJhY2sgYXBwZWFycyB0byBzYXkgdG8gdGhlIGhvc3Q6Cj4+Cj4+ ICAgICAgICAgSGV5LCBJICh0aGUgZ3Vlc3QpIGFtIHRyZWF0aW5nIHRoaXMgZ3Vlc3QgcGh5c2lj YWwgYXJlYSBhcyBNTUlPLgo+Pgo+PiBCdXQgdGhlIGhvc3QgYW5kIGd1ZXN0IGhhdmUgdG8gYWdy ZWUgX3NvbWV3aGVyZV8gd2hhdCB0aGUgTU1JTyBpcyB1c2VkCj4+IGZvciwgbm90IGp1c3QgdGhh dCBpdCBpcyBiZWluZyB1c2VkIGFzIE1NSU8uCj4gCj4gWWVzLiBUaGUgVFNNIChURUUgU2VjdXJp dHkgTWFuYWdlcikgd2hpY2ggaXMgZXF1aXZhbGVudCB0byBURFggYWxzbyAKPiBuZWVkcyB0byBi ZSBhd2FyZSBvZiB0aGUgTU1JTyByZWdpb25zIHNvIHRoYXQgaXQgY2FuIGZvcndhcmQgdGhlCj4g ZmF1bHRzIGFjY29yZGluZ2x5LiBNb3N0IG9mIHRoZSBNTUlPIGlzIGVtdWxhdGVkIGluIHRoZSBo b3N0Cj4gKHVzZXJzcGFjZSBvciBrZXJuZWwgZW11bGF0aW9uIGlmIHByZXNlbnQpLiBUaGUgaG9z dCBpcyBvdXRzaWRlIHRoZQo+IHRydXN0IGJvdW5kYXJ5IG9mIHRoZSBndWVzdC4gVGh1cywgZ3Vl c3QgbmVlZHMgdG8gbWFrZSBzdXJlIHRoZSBob3N0IAo+IG9ubHkgZW11bGF0ZXMgdGhlIGRlc2ln bmF0ZWQgTU1JTyByZWdpb24uIE90aGVyd2lzZSwgaXQgb3BlbnMgYW4gCj4gYXR0YWNrIHN1cmZh Y2UgZnJvbSBhIG1hbGljaW91cyBob3N0LgpIb3cgZG9lcyB0aGlzIG1lY2hhbmlzbSBzdG9wIHRo ZSBob3N0IGZyb20gZW11bGF0aW5nIHNvbWV0aGluZyBvdXRzaWRlCnRoZSBkZXNpZ25hdGVkIHJl Z2lvbj8KCk9uIFREWCwgZm9yIGluc3RhbmNlLCB0aGUgZ3Vlc3QgcGFnZSB0YWJsZSBoYXZlIGEg c2hhcmVkL3ByaXZhdGUgYml0LgpQcml2YXRlIHBhZ2VzIGdldCBURFggcHJvdGVjdGlvbnMgdG8g KGFtb25nIG90aGVyIHRoaW5ncykga2VlcCB0aGUgcGFnZQpjb250ZW50cyBjb25maWRlbnRpYWwg ZnJvbSB0aGUgaG9zdC4gIFNoYXJlZCBwYWdlcyBjYW4gYmUgdXNlZCBmb3IgTU1JTwphbmQgZG9u J3QgaGF2ZSB0aG9zZSBwcm90ZWN0aW9ucy4KCklmIHRoZSBob3N0IGdvZXMgYW5kIHRyaWVzIHRv IGZsaXAgYSBwYWdlIGZyb20gcHJpdmF0ZS0+c2hhcmVkLCBURFgKcHJvdGVjdGlvbnMgd2lsbCBr aWNrIGluIGFuZCBwcmV2ZW50IGl0LgoKTm9uZSBvZiB0aGlzIHJlcXVpcmVzIHRoZSBndWVzdCB0 byB0ZWxsIHRoZSBob3N0IHdoZXJlIGl0IGV4cGVjdHMgTU1JTwp0byBiZSBsb2NhdGVkLgoKPiBB bGwgb3RoZXIgY29uZmlkZW50aWFsIGNvbXB1dGluZyBzb2x1dGlvbnMgYWxzbyBkZXBlbmQgb24g Z3Vlc3QgCj4gaW5pdGlhdGVkIE1NSU8gYXMgd2VsbC4gQUZBSUssIHRoZSBURFggJiBTRVYgcmVs aWVzIG9uICNWRSBsaWtlCj4gZXhjZXB0aW9ucyB0byBpbnZva2UgdGhhdCB3aGlsZSB0aGlzIHBh dGNoIGlzIHNpbWlsYXIgdG8gd2hhdCBwa3ZtCj4gZG9lcy4gVGhpcyBhcHByb2FjaCBsZXRzIHRo ZSBlbmxpZ2h0ZW5lZCBndWVzdCBjb250cm9sIHdoaWNoIE1NSU8KPiByZWdpb25zIGl0IHdhbnRz IHRoZSBob3N0IHRvIGVtdWxhdGUuCgpJJ20gbm90IF9xdWl0ZV8gc3VyZSB3aGF0ICJndWVzdCBp bml0aWF0ZWQiIG1lYW5zLiAgQnV0IFNFViBhbmQgVERYCmRvbid0IHJlcXVpcmUgYW4gaW9yZW1h cCBob29rIGxpa2UgdGhpcy4gIFNvLCBldmVuIGlmIHRoZXkgKmFyZSogImd1ZXN0CmluaXRpYXRl ZCIsIHRoZSBxdWVzdGlvbiBzdGlsbCByZW1haW5zIGhvdyB0aGV5IHdvcmsgd2l0aG91dCB0aGlz IHBhdGNoLApvciB3aGF0IHRoZXkgYXJlIG1pc3Npbmcgd2l0aG91dCBpdC4KCj4gSXQgY2FuIGJl IGEgc3Vic2V0IG9mIHRoZSByZWdpb24ncyBob3N0IHByb3ZpZGVkIHRoZSBsYXlvdXQuIFRoZQo+ IGd1ZXN0IGRldmljZSBmaWx0ZXJpbmcgc29sdXRpb24gaXMgYmFzZWQgb24gdGhpcyBpZGVhIGFz IHdlbGwgWzFdLgo+IAo+IFsxXSBodHRwczovL2xvcmUua2VybmVsLm9yZy9hbGwvMjAyMTA5MzAw MTA1MTEuMzM4Nzk2Ny0xLXNhdGh5YW5hcmF5YW5hbi5rdXBwdXN3YW15QGxpbnV4LmludGVsLmNv bS8KCkkgZG9uJ3QgcmVhbGx5IHNlZSB0aGUgY29ubmVjdGlvbi4gIEV2ZW4gaWYgdGhhdCBzZXJp ZXMgd2FzIGdvaW5nCmZvcndhcmQgKEknbSBub3Qgc3VyZSBpdCBpcykgdGhlcmUgaXMgbm8gaW9y ZW1hcCBob29rIHRoZXJlLiAgVGhlcmUncwphbHNvIG5vIGd1ZXN0LT5ob3N0IGNvbW11bmljYXRp b24gaW4gdGhhdCBzZXJpZXMuICBUaGUgZ3Vlc3QgZG9lc24ndApfdGVsbF8gdGhlIGhvc3Qgd2hl cmUgdGhlIE1NSU8gaXMsIGl0IGp1c3QgZGVjbGluZXMgdG8gcnVuIGNvZGUgZm9yCmRldmljZXMg dGhhdCBpdCBkaWRuJ3QgZXhwZWN0IHRvIHNlZS4KCkknbSBzdGlsbCByYXRoZXIgY29uZnVzZWQg aGVyZS4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxp bnV4LXJpc2N2IG1haWxpbmcgbGlzdApsaW51eC1yaXNjdkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0 dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YK