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Wed, 26 Jun 2019 10:07:46 -0700 (PDT) Subject: Re: [PATCH V2 2/2] mailbox: introduce ARM SMC based mailbox To: =?UTF-8?Q?Andr=c3=a9_Przywara?= , Peng Fan , Jassi Brar References: <20190603083005.4304-1-peng.fan@nxp.com> <20190603083005.4304-3-peng.fan@nxp.com> <20c6cd30-642d-5f6e-15b8-2ef925ed90a6@arm.com> From: Florian Fainelli Openpgp: preference=signencrypt Autocrypt: addr=f.fainelli@gmail.com; prefer-encrypt=mutual; keydata= mQGiBEjPuBIRBACW9MxSJU9fvEOCTnRNqG/13rAGsj+vJqontvoDSNxRgmafP8d3nesnqPyR xGlkaOSDuu09rxuW+69Y2f1TzjFuGpBk4ysWOR85O2Nx8AJ6fYGCoeTbovrNlGT1M9obSFGQ X3IzRnWoqlfudjTO5TKoqkbOgpYqIo5n1QbEjCCwCwCg3DOH/4ug2AUUlcIT9/l3pGvoRJ0E AICDzi3l7pmC5IWn2n1mvP5247urtHFs/uusE827DDj3K8Upn2vYiOFMBhGsxAk6YKV6IP0d ZdWX6fqkJJlu9cSDvWtO1hXeHIfQIE/xcqvlRH783KrihLcsmnBqOiS6rJDO2x1eAgC8meAX SAgsrBhcgGl2Rl5gh/jkeA5ykwbxA/9u1eEuL70Qzt5APJmqVXR+kWvrqdBVPoUNy/tQ8mYc nzJJ63ng3tHhnwHXZOu8hL4nqwlYHRa9eeglXYhBqja4ZvIvCEqSmEukfivk+DlIgVoOAJbh qIWgvr3SIEuR6ayY3f5j0f2ejUMYlYYnKdiHXFlF9uXm1ELrb0YX4GMHz7QnRmxvcmlhbiBG YWluZWxsaSA8Zi5mYWluZWxsaUBnbWFpbC5jb20+iGYEExECACYCGyMGCwkIBwMCBBUCCAME FgIDAQIeAQIXgAUCVF/S8QUJHlwd3wAKCRBhV5kVtWN2DvCVAJ4u4/bPF4P3jxb4qEY8I2gS 6hG0gACffNWlqJ2T4wSSn+3o7CCZNd7SLSC5BA0ESM+4EhAQAL/o09boR9D3Vk1Tt7+gpYr3 WQ6hgYVON905q2ndEoA2J0dQxJNRw3snabHDDzQBAcqOvdi7YidfBVdKi0wxHhSuRBfuOppu pdXkb7zxuPQuSveCLqqZWRQ+Cc2QgF7SBqgznbe6Ngout5qXY5Dcagk9LqFNGhJQzUGHAsIs hap1f0B1PoUyUNeEInV98D8Xd/edM3mhO9nRpUXRK9Bvt4iEZUXGuVtZLT52nK6Wv2EZ1TiT OiqZlf1P+vxYLBx9eKmabPdm3yjalhY8yr1S1vL0gSA/C6W1o/TowdieF1rWN/MYHlkpyj9c Rpc281gAO0AP3V1G00YzBEdYyi0gaJbCEQnq8Vz1vDXFxHzyhgGz7umBsVKmYwZgA8DrrB0M oaP35wuGR3RJcaG30AnJpEDkBYHznI2apxdcuTPOHZyEilIRrBGzDwGtAhldzlBoBwE3Z3MY 31TOpACu1ZpNOMysZ6xiE35pWkwc0KYm4hJA5GFfmWSN6DniimW3pmdDIiw4Ifcx8b3mFrRO BbDIW13E51j9RjbO/nAaK9ndZ5LRO1B/8Fwat7bLzmsCiEXOJY7NNpIEpkoNoEUfCcZwmLrU +eOTPzaF6drw6ayewEi5yzPg3TAT6FV3oBsNg3xlwU0gPK3v6gYPX5w9+ovPZ1/qqNfOrbsE FRuiSVsZQ5s3AAMFD/9XjlnnVDh9GX/r/6hjmr4U9tEsM+VQXaVXqZuHKaSmojOLUCP/YVQo 7IiYaNssCS4FCPe4yrL4FJJfJAsbeyDykMN7wAnBcOkbZ9BPJPNCbqU6dowLOiy8AuTYQ48m vIyQ4Ijnb6GTrtxIUDQeOBNuQC/gyyx3nbL/lVlHbxr4tb6YkhkO6shjXhQh7nQb33FjGO4P WU11Nr9i/qoV8QCo12MQEo244RRA6VMud06y/E449rWZFSTwGqb0FS0seTcYNvxt8PB2izX+ HZA8SL54j479ubxhfuoTu5nXdtFYFj5Lj5x34LKPx7MpgAmj0H7SDhpFWF2FzcC1bjiW9mjW HaKaX23Awt97AqQZXegbfkJwX2Y53ufq8Np3e1542lh3/mpiGSilCsaTahEGrHK+lIusl6mz Joil+u3k01ofvJMK0ZdzGUZ/aPMZ16LofjFA+MNxWrZFrkYmiGdv+LG45zSlZyIvzSiG2lKy kuVag+IijCIom78P9jRtB1q1Q5lwZp2TLAJlz92DmFwBg1hyFzwDADjZ2nrDxKUiybXIgZp9 aU2d++ptEGCVJOfEW4qpWCCLPbOT7XBr+g/4H3qWbs3j/cDDq7LuVYIe+wchy/iXEJaQVeTC y5arMQorqTFWlEOgRA8OP47L9knl9i4xuR0euV6DChDrguup2aJVU4hPBBgRAgAPAhsMBQJU X9LxBQkeXB3fAAoJEGFXmRW1Y3YOj4UAn3nrFLPZekMeqX5aD/aq/dsbXSfyAKC45Go0YyxV HGuUuzv+GKZ6nsysJ7kCDQRXG8fwARAA6q/pqBi5PjHcOAUgk2/2LR5LjjesK50bCaD4JuNc YDhFR7Vs108diBtsho3w8WRd9viOqDrhLJTroVckkk74OY8r+3t1E0Dd4wHWHQZsAeUvOwDM PQMqTUBFuMi6ydzTZpFA2wBR9x6ofl8Ax+zaGBcFrRlQnhsuXLnM1uuvS39+pmzIjasZBP2H UPk5ifigXcpelKmj6iskP3c8QN6x6GjUSmYx+xUfs/GNVSU1XOZn61wgPDbgINJd/THGdqiO iJxCLuTMqlSsmh1+E1dSdfYkCb93R/0ZHvMKWlAx7MnaFgBfsG8FqNtZu3PCLfizyVYYjXbV WO1A23riZKqwrSJAATo5iTS65BuYxrFsFNPrf7TitM8E76BEBZk0OZBvZxMuOs6Z1qI8YKVK UrHVGFq3NbuPWCdRul9SX3VfOunr9Gv0GABnJ0ET+K7nspax0xqq7zgnM71QEaiaH17IFYGS sG34V7Wo3vyQzsk7qLf9Ajno0DhJ+VX43g8+AjxOMNVrGCt9RNXSBVpyv2AMTlWCdJ5KI6V4 KEzWM4HJm7QlNKE6RPoBxJVbSQLPd9St3h7mxLcne4l7NK9eNgNnneT7QZL8fL//s9K8Ns1W t60uQNYvbhKDG7+/yLcmJgjF74XkGvxCmTA1rW2bsUriM533nG9gAOUFQjURkwI8jvMAEQEA AYkCaAQYEQIACQUCVxvH8AIbAgIpCRBhV5kVtWN2DsFdIAQZAQIABgUCVxvH8AAKCRCH0Jac RAcHBIkHD/9nmfog7X2ZXMzL9ktT++7x+W/QBrSTCTmq8PK+69+INN1ZDOrY8uz6htfTLV9+ e2W6G8/7zIvODuHk7r+yQ585XbplgP0V5Xc8iBHdBgXbqnY5zBrcH+Q/oQ2STalEvaGHqNoD UGyLQ/fiKoLZTPMur57Fy1c9rTuKiSdMgnT0FPfWVDfpR2Ds0gpqWePlRuRGOoCln5GnREA/ 2MW2rWf+CO9kbIR+66j8b4RUJqIK3dWn9xbENh/aqxfonGTCZQ2zC4sLd25DQA4w1itPo+f5 V/SQxuhnlQkTOCdJ7b/mby/pNRz1lsLkjnXueLILj7gNjwTabZXYtL16z24qkDTI1x3g98R/ xunb3/fQwR8FY5/zRvXJq5us/nLvIvOmVwZFkwXc+AF+LSIajqQz9XbXeIP/BDjlBNXRZNdo dVuSU51ENcMcilPr2EUnqEAqeczsCGpnvRCLfVQeSZr2L9N4svNhhfPOEscYhhpHTh0VPyxI pPBNKq+byuYPMyk3nj814NKhImK0O4gTyCK9b+gZAVvQcYAXvSouCnTZeJRrNHJFTgTgu6E0 caxTGgc5zzQHeX67eMzrGomG3ZnIxmd1sAbgvJUDaD2GrYlulfwGWwWyTNbWRvMighVdPkSF 6XFgQaosWxkV0OELLy2N485YrTr2Uq64VKyxpncLh50e2RnyAJ9Za0Dx0yyp44iD1OvHtkEI M5kY0ACeNhCZJvZ5g4C2Lc9fcTHu8jxmEkI= Message-ID: <886589a4-cc51-1c01-6ade-4a6a683407d2@gmail.com> Date: Wed, 26 Jun 2019 10:07:45 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 MIME-Version: 1.0 In-Reply-To: <20c6cd30-642d-5f6e-15b8-2ef925ed90a6@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190626_100748_310671_C2E908DD X-CRM114-Status: GOOD ( 17.78 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Devicetree List , "festevam@gmail.com" , Linux Kernel Mailing List , Rob Herring , dl-linux-imx , ", Sascha Hauer" , Sudeep Holla , "van.freenix@gmail.com" , Shawn Guo , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gNi8yNi8xOSAxMDowNSBBTSwgQW5kcsOpIFByenl3YXJhIHdyb3RlOgo+PiBTbyBJIGludHJv ZHVjZWQgaW50ZXJydXB0IGluIFYyLiBJbiBteSB0ZXN0Y2FzZSwgYWZ0ZXIgc21jIGNhbGwgZG9u ZSwKPj4gaXQgbWVhbnMgZmlybXdhcmUtPnNtYyBtYWlsYm94LT5maXJtd2FyZSBkb25lLiBJbnRl cnJ1cHQgbm90aWZpY2F0aW9uCj4+IGZyb20gZmlybXdhcmUtPkxpbnV4LCBtZWFucyBmaXJtd2Fy ZSBoYXMgZG9uZSB0aGUgb3BlcmF0aW9uLgo+Pgo+PiBXaGVuIHVzaW5nIGludGVycnVwdHMsIHdl IGNvdWxkIG5vdCBrbm93IHJlcy5hMCBhcyBzbWMgc3luYyBjYWxsLgo+Pgo+PiBJbnRlcnJ1cHRz IGlzIG5vdCBhIG11c3QgaW4gbXkgdGVzdGNhc2UsIEZsb3JpYW4sIEFuZHJlLCBkbyB5b3UgaGF2 ZQo+PiBhbnkgY29tbWVudHM/IFNob3VsZCBJIGtlZXAgaW50ZXJydXB0cyBpbiBWMyBvciBkcm9w IGl0IGFzIEphc3NpIGNvbW1lbnRzPwo+IAo+IFRoZSBzbWMgbWFpbGJveCBpcyBieSBpdHMgdmVy eSBkZXNpZ24gYSBvbmUtd2F5IGNoYW5uZWwgLSBhbmQgaXQncwo+IHN5bmNocm9ub3VzLiBJIHRo aW5rIHRoaXMgaXMgYWxsIHRoZSBtYWlsYm94IGRyaXZlciBzaG91bGQgYmUgY29uY2VybmVkCj4g YWJvdXQuIFRoZSBmYWN0IHRoYXQgdGhlcmUgaXMgYSBwcm90b2NvbCB1c2VyIHRoYXQgd291bGQg YmVuZWZpdCBmcm9tIGEKPiByZXR1cm4gY2hhbm5lbCBpcyBhIHNlcGFyYXRlIGlzc3VlLgo+IFRo ZSBTQ01JIGJpbmRpbmcgZXhwbGljaXRseSBtZW50aW9ucyAqdHdvKiBtYWlsYm94ZXMsIG9uZSBU WCwgb25lIFJYLCBzbwo+IHRoZSByZXR1cm4gY2hhbm5lbCBjb3VsZCBiZSB2ZXJ5IHdlbGwgaW1w bGVtZW50ZWQgYnkgYSBzZXBhcmF0ZSBkcml2ZXIuCj4gSSBhbSB3b25kZXJpbmcgaWYgd2UgZ2V0 IGF3YXkgd2l0aG91dCBhIGZ1bmN0aW9uaW5nIHJldHVybiBjaGFubmVsLCBhdAo+IGxlYXN0IGZv ciBhIHN1YnNldCBvZiBTQ01JIGZ1bmN0aW9uYWxpdHk/IENhbiB3ZSB1c2Ugc29tZSBkdW1teSBk cml2ZXI/Cj4gT3Igc3BlY2lmeSBhbm90aGVyIHNtYyBjaGFubmVsIHdpdGggc29tZSB1bmhhbmRs ZWQvaWdub3JlZCBjaGFubmVsIElECj4gZm9yIHRoYXQgcHVycG9zZT8KPiAKPiBTbyBJIHdvdWxk IGxlYXZlIHRoZSBJUlEgcmV0dXJuIGNoYW5uZWwgb3V0IGZvciBub3csIHVubGVzcyB3ZQo+IGRl c3BlcmF0ZWx5IG5lZWQgaXQuCgpUaGF0J3MgZmluZSwgdGhlIGluaXRpYWwgcG9pbnQgd2FzIHNw ZWNpZmljYWxseSBhYm91dCB0aGUgYmluZGluZwphbHJlYWR5IGRlZmluaW5nIGFuIG9wdGlvbmFs IGludGVycnVwdCBwcm9wZXJ0eSwgYnV0IHRoYXQgY2FuIGJlIHJlbW92ZWQKdG9vIGlmIHRoaXMg aXMgdG9vIG11Y2ggY29uZnVzaW9uIG9yIG9wZW5zIHVwIHRoZSBkaXNjdXNzaW9uIGJleW9uZCB0 aGlzCnN1Ym1pc3Npb24uCi0tIApGbG9yaWFuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1h cm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcv bWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==