tree: git://people.freedesktop.org/~agd5f/linux.git drm-next-4.19-wip head: 638d758f0bb28342123d87dbd8a4190a55e74771 commit: 522e6b434a61f8be910560969386a2b3ce113c1b [93/102] drm/amd/display: Initialize data structure for DalMpVisualConfirm. config: x86_64-randconfig-g0-07132339 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: git checkout 522e6b434a61f8be910560969386a2b3ce113c1b # save the attached .config to linux build tree make ARCH=x86_64

All warnings (new ones prefixed by >>):

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c: In function 'dcn10_update_mpcc':

...

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:1854:9: warning: missing braces around initializer [-Wmissing-braces]

struct mpcc_blnd_cfg blnd_cfg = {0}; ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:1854:9: warning: (near initialization for 'blnd_cfg.black_color') [-Wmissing-braces] Cyclomatic Complexity 3 include/linux/string.h:memset Cyclomatic Complexity 4 include/linux/string.h:memcmp Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:dc_fixpt_from_int Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:dc_fixpt_neg Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:dc_fixpt_abs Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:dc_fixpt_lt Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:dc_fixpt_floor Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h:dm_read_reg_func Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h:dm_write_reg_func Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:bios_golden_init Cyclomatic Complexity 6 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:false_optc_underflow_wa Cyclomatic Complexity 8 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:patch_address_for_sbs_tb_stereo Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_update_plane_addr Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:program_gamut_remap Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:program_csc_matrix Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_program_output_csc Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:is_lower_pipe_tree_visible Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:is_upper_pipe_tree_visible Cyclomatic Complexity 6 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:is_pipe_tree_visible Cyclomatic Complexity 6 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_get_surface_visual_confirm_color Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:update_scaler Cyclomatic Complexity 6 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:find_top_pipe_for_stream Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:set_drr Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:get_position Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:set_static_screen_control Cyclomatic Complexity 7 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_config_stereo_parameters Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_setup_stereo Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_dummy_display_power_gating Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_update_pending_status Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_set_cursor_position Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_set_cursor_attribute Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:log_mpc_crc Cyclomatic Complexity 6 drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:dc_fixpt_sub Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:get_hubp_by_inst Cyclomatic Complexity 19 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_hw_wa_force_recovery Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:dc_fixpt_mul_int Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:fixed_point_to_int_frac Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:enable_power_gating_plane Cyclomatic Complexity 10 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:hubp_pg_control Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:undo_DEGVIDCN10_253_wa Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:apply_DEGVIDCN10_253_wa Cyclomatic Complexity 10 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dpp_pg_control Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:power_on_plane Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:plane_atomic_power_down Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:plane_atomic_disable Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_disable_plane Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:mmhub_read_vm_system_aperture_settings Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:mmhub_read_vm_context0_settings Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_program_pte_vm Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:disable_vga Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:set_hdr_multiplier Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_pplib_apply_display_requirements Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:ready_shared_resources Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:optimize_shared_resources Cyclomatic Complexity 8 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_blank_pixel_data Cyclomatic Complexity 9 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_enable_stream_timing Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:wait_for_reset_trigger_to_occur Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_enable_per_frame_crtc_position_reset Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_enable_timing_synchronization Cyclomatic Complexity 6 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_set_output_transfer_func Cyclomatic Complexity 12 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_set_input_transfer_func Cyclomatic Complexity 3 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_update_dchub Cyclomatic Complexity 9 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:reset_back_end_for_pipe Cyclomatic Complexity 7 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:reset_hw_ctx_wrap Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:print_microsec Cyclomatic Complexity 13 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_log_hubp_states Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_log_hubbub_state Cyclomatic Complexity 21 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_log_hw_state Cyclomatic Complexity 7 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_verify_allow_pstate_change_high Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:hwss1_plane_atomic_disconnect Cyclomatic Complexity 19 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_init_hw Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_enable_plane Cyclomatic Complexity 6 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_wait_for_mpcc_disconnect Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_set_bandwidth Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_pipe_control_lock Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:is_rgb_cspace Cyclomatic Complexity 11 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_update_mpcc Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:build_prescale_params Cyclomatic Complexity 2 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:update_dpp Cyclomatic Complexity 12 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:update_dchubp_dpp Cyclomatic Complexity 4 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_program_pipe Cyclomatic Complexity 5 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:program_all_pipe_in_tree Cyclomatic Complexity 17 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_apply_ctx_for_surface Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:dcn10_hw_sequencer_construct Cyclomatic Complexity 1 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:_GLOBAL__sub_I_65535_0_print_microsec

vim +1854 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c

1850 1851 static void dcn10_update_mpcc(struct dc *dc, struct pipe_ctx *pipe_ctx) 1852 { 1853 struct hubp *hubp = pipe_ctx->plane_res.hubp;

1854 struct mpcc_blnd_cfg blnd_cfg = {0};

1855 bool per_pixel_alpha = pipe_ctx->plane_state->per_pixel_alpha && pipe_ctx->bottom_pipe; 1856 int mpcc_id; 1857 struct mpcc *new_mpcc; 1858 struct mpc *mpc = dc->res_pool->mpc; 1859 struct mpc_tree *mpc_tree_params = &(pipe_ctx->stream_res.opp->mpc_tree_params); 1860 1861 1862 1863 /* TODO: proper fix once fpga works */ 1864 1865 if (dc->debug.surface_visual_confirm) 1866 dcn10_get_surface_visual_confirm_color( 1867 pipe_ctx, &blnd_cfg.black_color); 1868 else 1869 color_space_to_black_color( 1870 dc, pipe_ctx->stream->output_color_space, 1871 &blnd_cfg.black_color); 1872 1873 if (per_pixel_alpha) 1874 blnd_cfg.alpha_mode = MPCC_ALPHA_BLEND_MODE_PER_PIXEL_ALPHA; 1875 else 1876 blnd_cfg.alpha_mode = MPCC_ALPHA_BLEND_MODE_GLOBAL_ALPHA; 1877 1878 blnd_cfg.overlap_only = false; 1879 blnd_cfg.global_alpha = 0xff; 1880 blnd_cfg.global_gain = 0xff; 1881 1882 /* DCN1.0 has output CM before MPC which seems to screw with 1883 * pre-multiplied alpha. 1884 */ 1885 blnd_cfg.pre_multiplied_alpha = is_rgb_cspace( 1886 pipe_ctx->stream->output_color_space) 1887 && per_pixel_alpha; 1888 1889 1890 /* 1891 * TODO: remove hack 1892 * Note: currently there is a bug in init_hw such that 1893 * on resume from hibernate, BIOS sets up MPCC0, and 1894 * we do mpcc_remove but the mpcc cannot go to idle 1895 * after remove. This cause us to pick mpcc1 here, 1896 * which causes a pstate hang for yet unknown reason. 1897 */ 1898 mpcc_id = hubp->inst; 1899 1900 /* If there is no full update, don't need to touch MPC tree*/ 1901 if (!pipe_ctx->plane_state->update_flags.bits.full_update) { 1902 mpc->funcs->update_blending(mpc, &blnd_cfg, mpcc_id); 1903 return; 1904 } 1905 1906 /* check if this MPCC is already being used */ 1907 new_mpcc = mpc->funcs->get_mpcc_for_dpp(mpc_tree_params, mpcc_id); 1908 /* remove MPCC if being used */ 1909 if (new_mpcc != NULL) 1910 mpc->funcs->remove_mpcc(mpc, mpc_tree_params, new_mpcc); 1911 else 1912 if (dc->debug.sanity_checks) 1913 mpc->funcs->assert_mpcc_idle_before_connect( 1914 dc->res_pool->mpc, mpcc_id); 1915 1916 /* Call MPC to insert new plane */ 1917 new_mpcc = mpc->funcs->insert_plane(dc->res_pool->mpc, 1918 mpc_tree_params, 1919 &blnd_cfg, 1920 NULL, 1921 NULL, 1922 hubp->inst, 1923 mpcc_id); 1924 1925 ASSERT(new_mpcc != NULL); 1926 1927 hubp->opp_id = pipe_ctx->stream_res.opp->inst; 1928 hubp->mpcc_id = mpcc_id; 1929 } 1930

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