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Received: from BN6PR1201MB0228.namprd12.prod.outlook.com (10.174.115.135) by BN6PR1201MB0148.namprd12.prod.outlook.com (10.174.114.149) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2644.20; Wed, 22 Jan 2020 16:11:57 +0000 Received: from BN6PR1201MB0228.namprd12.prod.outlook.com ([fe80::d8c9:e17c:33f1:6d2]) by BN6PR1201MB0228.namprd12.prod.outlook.com ([fe80::d8c9:e17c:33f1:6d2%3]) with mapi id 15.20.2644.028; Wed, 22 Jan 2020 16:11:57 +0000 Subject: Re: [PATCH 0/5] HDCP SRM interface To: Bhawanpreet Lakha , amd-gfx@lists.freedesktop.org References: <20200116202945.21801-1-Bhawanpreet.Lakha@amd.com> From: Harry Wentland Autocrypt: addr=hwentlan@amd.com; keydata= mQENBFhb4C8BCADhHHUNoBQ7K7LupCP0FsUb443Vuqq+dH0uo4A3lnPkMF6FJmGcJ9Sbx1C6 cd4PbVAaTFZUEmjqfpm+wCRBe11eF55hW3GJ273wvfH69Q/zmAxwO8yk+i5ZWWl8Hns5h69K D9QURHLpXxrcwnfHFah0DwV23TrD1KGB7vowCZyJOw93U/GzAlXKESy0FM7ZOYIJH83X7qhh Q9KX94iTEYTeH86Wy8hwHtqM6ySviwEz0g+UegpG8ebbz0w3b5QmdKCAg+eZTmBekP5o77YE BKqR+Miiwo9+tzm2N5GiF9HDeI2pVe/egOLa5UcmsgdF4Y5FKoMnBbAHNaA6Fev8PHlNABEB AAG0J0hhcnJ5IFdlbnRsYW5kIDxoYXJyeS53ZW50bGFuZEBhbWQuY29tPokBNwQTAQgAIQUC WFvgLwIbAwULCQgHAgYVCAkKCwIEFgIDAQIeAQIXgAAKCRAtWBXJjBS24xUlCAC9MqAlIbZO /a37s41h+MQ+D20C6/hVErWO+RA06nA+jFDPUWrDJKYdn6EDQWdLY3ATeAq3X8GIeOTXGrPD b2OXD6kOViW/RNvlXdrIsnIDacdr39aoAlY1b+bhTzZVz4pto4l+K1PZb5jlMgTk/ks9HesL RfYVq5wOy3qIpocdjdlXnSUKn0WOkGBBd8Nv3o0OI18tiJ1S/QwLBBfZoVvfGinoB2p4j/wO kJxpi3F9TaOtLGcdrgfghg31Fb48DP+6kodZ4ircerp4hyAp0U2iKtsrQ/sVWR4mbe3eTfcn YjBxGd2JOVdNQZa2VTNf9GshIDMD8IIQK6jN0LfY8Py2uQENBFhb4C8BCAC/0KWY3pIbU2cy i7GMj3gqB6h0jGqRuMpMRoSNDoAUIuSh17w+bawuOF6XZPdK3D4lC9cOXMwP3aP9tTJOori2 8vMH8KW9jp9lAYnGWYhSqLdjzIACquMqi96EBtawJDct1e9pVgp+d4JXHlgIrl11ITJo8rCP dEqjro2bCBWxijsIncdCzMjf57+nR7u86SBtGSFcXKapS7YJeWcvM6MzFYgIkxHxxBDvBBvm U2/mAXiL72kwmlV1BNrabQxX2UnIb3xt3UovYJehrnDUMdYjxJgSPRBx27wQ/D05xAlhkmmL FJ01ZYc412CRCC6gjgFPfUi2y7YJTrQHS79WSyANABEBAAGJAR8EGAEIAAkFAlhb4C8CGwwA CgkQLVgVyYwUtuM72Qf+J6JOQ/27pWf5Ulde9GS0BigA1kV9CNfIq396TgvQzeyixHMvgPdq Z36x89zZi0otjMZv6ypIdEg5co1Bvz0wFaKbCiNbTjpnA1VAbQVLSFjCZLQiu0vc+BZ1yKDV T5ASJ97G4XvQNO+XXGY55MrmhoNqMaeIa/3Jas54fPVd5olcnUAyDty29/VWXNllUq38iBCX /0tTF7oav1lzPGfeW2c6B700FFZMTR4YBVSGE8jPIzu2Fj0E8EkDmsgS+nibqSvWXfo1v231 410h35CjbYDlYQO7Z1YD7asqbaOnF0As+rckyRMweQ9CxZn5+YBijtPJA3x5ldbCfQ9rWiTu XQ== Message-ID: <55a3fd2d-c2ed-4af0-543e-9850118b722a@amd.com> Date: Wed, 22 Jan 2020 11:11:55 -0500 User-Agent: Mozilla/5.0 (X11; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" On 2020-01-16 3:29 p.m., Bhawanpreet Lakha wrote: > These patches adds support for SRM loading. By providing an interface to the > usermode > > SRM has to be persistent and since the kernel cannot directly write to system > storage we need to provide an interface so that the usermode can do it for us > We'll want to elaborate a bit more on why and how this is done. As mentioned on my patch 2 comments I recommend to do this there as the cover letter is lost after merge. Harry > > Bhawanpreet Lakha (5): > drm/amd/display: Pass amdgpu_device instead of psp_context > drm/amd/display: update psp interface header > drm/amd/display: Add sysfs interface for set/get srm > drm/amd/display: Load srm before enabling HDCP > drm/amd/display: call psp set/get interfaces > > .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- > .../amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 182 +++++++++++++++++- > .../amd/display/amdgpu_dm/amdgpu_dm_hdcp.h | 9 +- > .../drm/amd/display/modules/hdcp/hdcp_psp.h | 26 ++- > 4 files changed, 212 insertions(+), 7 deletions(-) > _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx