diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2500-drm-amd-display-Add-profiling-tools-for-bandwidth-va.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2500-drm-amd-display-Add-profiling-tools-for-bandwidth-va.patch | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2500-drm-amd-display-Add-profiling-tools-for-bandwidth-va.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2500-drm-amd-display-Add-profiling-tools-for-bandwidth-va.patch new file mode 100644 index 00000000..35def917 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2500-drm-amd-display-Add-profiling-tools-for-bandwidth-va.patch @@ -0,0 +1,90 @@ +From ea98e96e457ce2c57ae7c46076e365677b63d87a Mon Sep 17 00:00:00 2001 +From: Joshua Aberback <joshua.aberback@amd.com> +Date: Mon, 1 Apr 2019 15:21:24 -0400 +Subject: [PATCH 2500/2940] drm/amd/display: Add profiling tools for bandwidth + validation + +[Why] +We used this change to investigate the performance of bandwidth validation, +it will be useful to have if we need to investigate further. + +[How] +We use performance counter tick numbers to profile performance, they live +at dc->debug.bw_val_profile (set .enable in debugger to turn on measuring). + +Signed-off-by: Joshua Aberback <joshua.aberback@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + .../gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 13 +++++++++++++ + 1 file changed, 13 insertions(+) + +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 371d96290d86..c9b7340c9601 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +@@ -1912,6 +1912,8 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context, + { + bool out = false; + ++ BW_VAL_TRACE_SETUP(); ++ + int pipe_cnt, i, pipe_idx, vlevel, vlevel_unsplit; + int pipe_split_from[MAX_PIPES]; + bool odm_capable = context->bw_ctx.dml.ip.odm_capable; +@@ -1924,6 +1926,8 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context, + display_e2e_pipe_params_st *pipes = kzalloc(dc->res_pool->pipe_count * sizeof(display_e2e_pipe_params_st), GFP_KERNEL); + DC_LOGGER_INIT(dc->ctx->logger); + ++ BW_VAL_TRACE_COUNT(); ++ + ASSERT(pipes); + if (!pipes) + return false; +@@ -1957,6 +1961,7 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context, + pipe_cnt = dcn20_populate_dml_pipes_from_context(dc, &context->res_ctx, pipes); + + if (!pipe_cnt) { ++ BW_VAL_TRACE_SKIP(pass); + out = true; + goto validate_out; + } +@@ -2117,7 +2122,10 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context, + } + #endif + ++ BW_VAL_TRACE_END_VOLTAGE_LEVEL(); ++ + if (fast_validate) { ++ BW_VAL_TRACE_SKIP(fast); + out = true; + goto validate_out; + } +@@ -2213,6 +2221,8 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context, + != dm_dram_clock_change_unsupported; + context->bw_ctx.bw.dcn.clk.dppclk_khz = 0; + ++ BW_VAL_TRACE_END_WATERMARKS(); ++ + for (i = 0, pipe_idx = 0; i < dc->res_pool->pipe_count; i++) { + if (!context->res_ctx.pipe_ctx[i].stream) + continue; +@@ -2261,11 +2271,14 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context, + DC_LOG_WARNING("Mode Validation Warning: %s failed validation.\n", + dml_get_status_message(context->bw_ctx.dml.vba.ValidationStatus[context->bw_ctx.dml.vba.soc.num_states])); + ++ BW_VAL_TRACE_SKIP(fail); + out = false; + + validate_out: + kfree(pipes); + ++ BW_VAL_TRACE_FINISH(); ++ + return out; + } + +-- +2.17.1 + |