<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <p style="font-family:Arial;font-size:11pt;color:#0078D7;margin:5pt;" align="Left"> [AMD Official Use Only - Internal Distribution Only]<br> </p> <br> <div> <div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> Acked-by: Alex Deucher <alexander.deucher@amd.com><br> </div> <div id="appendonsend"></div> <hr style="display:inline-block;width:98%" tabindex="-1"> <div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Aurabindo Pillai <aurabindo.pillai@amd.com><br> <b>Sent:</b> Wednesday, April 21, 2021 3:17 PM<br> <b>To:</b> amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org><br> <b>Cc:</b> Lakha, Bhawanpreet <Bhawanpreet.Lakha@amd.com>; Kazlauskas, Nicholas <Nicholas.Kazlauskas@amd.com>; R, Bindu <Bindu.R@amd.com><br> <b>Subject:</b> [PATCH] drm/amd/display: get socBB from VBIOS for dcn302</font> <div> </div> </div> <div class="BodyFragment"><font size="2"><span style="font-size:11pt;"> <div class="PlainText">[why]<br> Some SOC BB paramters may vary per SKU, and it does<br> not make sense for driver to hardcode these values.<br> This change was added for dcn30 and dcn301, but not<br> for dcn302<br> <br> [how]<br> Parse the values from VBIOS if available, and use<br> them if valid<br> <br> Fixes: 93669c8e48 ("drm/amd/display: get socBB from VBIOS")<br> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com><br> ---<br> .../amd/display/dc/dcn302/dcn302_resource.c | 20 +++++++++++++++++++<br> 1 file changed, 20 insertions(+)<br> <br> diff --git a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c<br> index fc2dea243d1b..f44814d15206 100644<br> --- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c<br> +++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c<br> @@ -1101,6 +1101,26 @@ static bool init_soc_bounding_box(struct dc *dc, struct resource_pool *pool)<br> loaded_ip->max_num_dpp = pool->pipe_count;<br> loaded_ip->clamp_min_dcfclk = dc->config.clamp_min_dcfclk;<br> dcn20_patch_bounding_box(dc, loaded_bb);<br> +<br> + if (dc->ctx->dc_bios->funcs->get_soc_bb_info) {<br> + struct bp_soc_bb_info bb_info = { 0 };<br> +<br> + if (dc->ctx->dc_bios->funcs->get_soc_bb_info(<br> + dc->ctx->dc_bios, &bb_info) == BP_RESULT_OK) {<br> + if (bb_info.dram_clock_change_latency_100ns > 0)<br> + dcn3_02_soc.dram_clock_change_latency_us =<br> + bb_info.dram_clock_change_latency_100ns * 10;<br> +<br> + if (bb_info.dram_sr_enter_exit_latency_100ns > 0)<br> + dcn3_02_soc.sr_enter_plus_exit_time_us =<br> + bb_info.dram_sr_enter_exit_latency_100ns * 10;<br> +<br> + if (bb_info.dram_sr_exit_latency_100ns > 0)<br> + dcn3_02_soc.sr_exit_time_us =<br> + bb_info.dram_sr_exit_latency_100ns * 10;<br> + }<br> + }<br> +<br> return true;<br> }<br> <br> -- <br> 2.31.1<br> <br> _______________________________________________<br> amd-gfx mailing list<br> amd-gfx@lists.freedesktop.org<br> <a href="https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7Calexander.deucher%40amd.com%7Cd4786559160d4972759e08d904fa2c5d%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637546294804838871%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=qVnczJLExg%2FX2JaAh4euZPDU%2F5HO1fKscQ0XYjVrk5I%3D&reserved=0">https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7Calexander.deucher%40amd.com%7Cd4786559160d4972759e08d904fa2c5d%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637546294804838871%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=qVnczJLExg%2FX2JaAh4euZPDU%2F5HO1fKscQ0XYjVrk5I%3D&reserved=0</a><br> </div> </span></font></div> </div> </body> </html>