diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4800-drm-amd-display-Allow-option-to-use-worst-case-water.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4800-drm-amd-display-Allow-option-to-use-worst-case-water.patch | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4800-drm-amd-display-Allow-option-to-use-worst-case-water.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4800-drm-amd-display-Allow-option-to-use-worst-case-water.patch new file mode 100644 index 00000000..47efbaa0 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4800-drm-amd-display-Allow-option-to-use-worst-case-water.patch @@ -0,0 +1,74 @@ +From 738e1ef59d4ea47feeacb3f17617ccfd3c992722 Mon Sep 17 00:00:00 2001 +From: Tony Cheng <tony.cheng@amd.com> +Date: Fri, 8 Jun 2018 17:36:26 -0400 +Subject: [PATCH 4800/5725] drm/amd/display: Allow option to use worst-case + watermark + +use worse case watermark (consider both DCC and VM) +to keep golden consistent regardless of DCC + +Signed-off-by: Tony Cheng <tony.cheng@amd.com> +Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 23 ++++++++++++++++++++++- + drivers/gpu/drm/amd/display/dc/dc.h | 1 + + 2 files changed, 23 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c +index 12261fb..e44b8d3 100644 +--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c ++++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c +@@ -31,6 +31,8 @@ + + #include "resource.h" + #include "dcn10/dcn10_resource.h" ++#include "dcn10/dcn10_hubbub.h" ++ + #include "dcn_calc_math.h" + + #define DC_LOGGER \ +@@ -889,7 +891,26 @@ bool dcn_validate_bandwidth( + ASSERT(pipe->plane_res.scl_data.ratios.vert.value != dc_fixpt_one.value + || v->scaler_rec_out_width[input_idx] == v->viewport_height[input_idx]); + } +- v->dcc_enable[input_idx] = pipe->plane_state->dcc.enable ? dcn_bw_yes : dcn_bw_no; ++ ++ if (dc->debug.optimized_watermark) { ++ /* ++ * this method requires us to always re-calculate watermark when dcc change ++ * between flip. ++ */ ++ v->dcc_enable[input_idx] = pipe->plane_state->dcc.enable ? dcn_bw_yes : dcn_bw_no; ++ } else { ++ /* ++ * allow us to disable dcc on the fly without re-calculating WM ++ * ++ * extra overhead for DCC is quite small. for 1080p WM without ++ * DCC is only 0.417us lower (urgent goes from 6.979us to 6.562us) ++ */ ++ unsigned int bpe; ++ ++ v->dcc_enable[input_idx] = dc->res_pool->hubbub->funcs->dcc_support_pixel_format( ++ pipe->plane_state->format, &bpe) ? dcn_bw_yes : dcn_bw_no; ++ } ++ + v->source_pixel_format[input_idx] = tl_pixel_format_to_bw_defs( + pipe->plane_state->format); + v->source_surface_mode[input_idx] = tl_sw_mode_to_bw_defs( +diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h +index 79edbb1..2af5e60 100644 +--- a/drivers/gpu/drm/amd/display/dc/dc.h ++++ b/drivers/gpu/drm/amd/display/dc/dc.h +@@ -234,6 +234,7 @@ struct dc_debug { + int urgent_latency_ns; + int percent_of_ideal_drambw; + int dram_clock_change_latency_ns; ++ bool optimized_watermark; + int always_scale; + bool disable_pplib_clock_request; + bool disable_clock_gate; +-- +2.7.4 + |