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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Sep 2021 19:09:55.3770 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 04a29112-1b6a-4590-9b98-08d97f8ee507 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT057.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8PR12MB2898 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: David Galiffi [Why] Requested feature to assist with Thermal, Acoustic, Power, and Performance tuning. [How] Add a debug field that will override calculated minimum DRAM clock, if the debug value is larger than the calculate value. Reviewed-by: Alvin Lee Acked-by: Anson Jacob Signed-off-by: David Galiffi --- drivers/gpu/drm/amd/display/dc/dc.h | 1 + drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index b194a2727bd8..a46c663ed8c5 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -565,6 +565,7 @@ struct dc_debug_options { enum wm_report_mode pplib_wm_report_mode; unsigned int min_disp_clk_khz; unsigned int min_dpp_clk_khz; + unsigned int min_dram_clk_khz; int sr_exit_time_dpm0_ns; int sr_enter_plus_exit_time_dpm0_ns; int sr_exit_time_ns; diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c index 3c388afa06dc..aeb868ace31c 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -3117,6 +3117,10 @@ void dcn20_calculate_dlg_params( context->bw_ctx.bw.dcn.clk.dcfclk_khz = context->bw_ctx.dml.vba.DCFCLK * 1000; context->bw_ctx.bw.dcn.clk.socclk_khz = context->bw_ctx.dml.vba.SOCCLK * 1000; context->bw_ctx.bw.dcn.clk.dramclk_khz = context->bw_ctx.dml.vba.DRAMSpeed * 1000 / 16; + + if (dc->debug.min_dram_clk_khz > context->bw_ctx.bw.dcn.clk.dramclk_khz) + context->bw_ctx.bw.dcn.clk.dramclk_khz = dc->debug.min_dram_clk_khz; + context->bw_ctx.bw.dcn.clk.dcfclk_deep_sleep_khz = context->bw_ctx.dml.vba.DCFCLKDeepSleep * 1000; context->bw_ctx.bw.dcn.clk.fclk_khz = context->bw_ctx.dml.vba.FabricClock * 1000; context->bw_ctx.bw.dcn.clk.p_state_change_support = -- 2.25.1