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Received: from MW2PR12MB2524.namprd12.prod.outlook.com (2603:10b6:907:9::27) by MW2PR12MB2396.namprd12.prod.outlook.com (2603:10b6:907:9::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2814.14; Mon, 16 Mar 2020 13:50:06 +0000 Received: from MW2PR12MB2524.namprd12.prod.outlook.com ([fe80::91a7:e6f7:b17a:bfa5]) by MW2PR12MB2524.namprd12.prod.outlook.com ([fe80::91a7:e6f7:b17a:bfa5%6]) with mapi id 15.20.2814.021; Mon, 16 Mar 2020 13:50:06 +0000 From: Rodrigo Siqueira To: amd-gfx@lists.freedesktop.org Subject: [PATCH 12/19] drm/amd/display: Program self refresh control register on boot Date: Mon, 16 Mar 2020 09:49:13 -0400 Message-Id: <20200316134920.2526155-13-Rodrigo.Siqueira@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200316134920.2526155-1-Rodrigo.Siqueira@amd.com> References: <20200316134920.2526155-1-Rodrigo.Siqueira@amd.com> X-ClientProxiedBy: YTXPR0101CA0009.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00::22) To MW2PR12MB2524.namprd12.prod.outlook.com (2603:10b6:907:9::27) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from atma2.amd.com (165.204.55.250) by YTXPR0101CA0009.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b00::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2814.14 via Frontend Transport; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Sung Lee [WHY] In headless boot cases, self refresh control registers are not programmed on boot. In certain hybrid graphics cases this may cause cstate entering to get blocked causing a hang. [HOW] Program self refresh control register on boot. Signed-off-by: Sung Lee Reviewed-by: Anthony Koo Acked-by: Rodrigo Siqueira --- drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 21c7c1b010ec..dad732bb34d5 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -1356,6 +1356,9 @@ void dcn10_init_hw(struct dc *dc) */ if (dcb->funcs->is_accelerated_mode(dcb) || dc->config.power_down_display_on_boot) { hws->funcs.init_pipes(dc, dc->current_state); + if (dc->res_pool->hubbub->funcs->allow_self_refresh_control) + dc->res_pool->hubbub->funcs->allow_self_refresh_control(dc->res_pool->hubbub, + !dc->res_pool->hubbub->ctx->dc->debug.disable_stutter); } for (i = 0; i < res_pool->audio_count; i++) { -- 2.25.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx