From 257e9891db0b961b79c9f0ca50c808a738000e70 Mon Sep 17 00:00:00 2001 From: Josip Pavic Date: Fri, 12 May 2023 09:56:05 -0400 Subject: [PATCH] drm/amd/display: cache trace buffer size [Why & How] Cache the trace buffer size retrieved from DMUB FW in the driver Reviewed-by: Nicholas Kazlauskas Reviewed-by: Aric Cyr Acked-by: Tom Chung Signed-off-by: Josip Pavic Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dmub/dmub_srv.h | 1 + drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h index 7c9a2b34bd05..e210cb082ebd 100644 --- a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h +++ b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h @@ -428,6 +428,7 @@ struct dmub_srv { enum dmub_asic asic; void *user_ctx; uint32_t fw_version; + uint32_t trace_buffer_size; bool is_virtual; struct dmub_fb scratch_mem_fb; volatile const struct dmub_fw_state *fw_state; diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c index 9e9a6a44a7ac..8b9af18e84fe 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -427,6 +427,8 @@ dmub_srv_calc_region_info(struct dmub_srv *dmub, dmub->fw_version = fw_info->fw_version; } + dmub->trace_buffer_size = trace_buffer_size; + trace_buff->base = dmub_align(mail->top, 256); trace_buff->top = trace_buff->base + dmub_align(trace_buffer_size, 64); -- 2.20.1