tree: git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next head: 5d8e75c019bf76889bd606a67afabf7d0b32d3fa commit: 5a0a709652ceaca0a36ef2d0954b8d9d3f690560 [63/158] drm/amd/dc: Add dc display driver config: parisc-allyesconfig (attached as .config) compiler: hppa-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/ma... -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 5a0a709652ceaca0a36ef2d0954b8d9d3f690560 # save the attached .config to linux build tree make.cross ARCH=parisc
All warnings (new ones prefixed by >>):
drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/bandwidth_calcs.c: In function 'calculate_bandwidth':
drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/bandwidth_calcs.c:508:5: warning: this decimal constant is unsigned only in ISO C90
data->lb_line_pitch = bw_ceil2(bw_mul(bw_div(bw_frc_to_fixed(2401171875, 100000000), bw_int_to_fixed(3)), bw_ceil2(data->source_width_in_lb, bw_int_to_fixed(8))), bw_int_to_fixed(48)); ^~~~ drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/bandwidth_calcs.c:1712:362: warning: array subscript is above array bounds [-Warray-bounds] data->blackout_recovery_time = bw_max2(data->blackout_recovery_time, bw_div((bw_add(bw_mul(bw_div(bw_mul(data->display_bandwidth[k], data->useful_bytes_per_request[k]), data->bytes_per_request[k]), vbios->blackout_duration), bw_sub(bw_div(bw_mul(bw_mul(bw_mul((bw_add(bw_add(bw_mul(bw_int_to_fixed(2), vbios->mcifwrmc_urgent_latency), data->dmif_burst_time[i][j]), data->mcifwr_burst_time[data->y_clk_level][data->sclk_level])), data->dispclk), bw_int_to_fixed(data->bytes_per_pixel[k])), data->lines_interleaved_in_mem_access[k]), data->latency_hiding_lines[k]), data->adjusted_data_buffer_size[k]))), (bw_sub(bw_div(bw_mul(bw_mul(data->dispclk, bw_int_to_fixed(data->bytes_per_pixel[k])), data->lines_interleaved_in_mem_access[k]), data->latency_hiding_lines[k]), bw_div(bw_mul(data->display_bandwidth[k], data->useful_bytes_per_request[k]), data->bytes_per_request[k]))))); ~~~~~~~~~~~~~~~~~~~~~^~~
vim +508 drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/bandwidth_calcs.c
492 } 493 } 494 } 495 } 496 } 497 lb_size_check = bw_def_ok; 498 for (i = 0; i <= maximum_number_of_surfaces - 1; i++) { 499 if (data->enable[i]) { 500 if ((dceip->pre_downscaler_enabled && bw_mtn(data->hsr[i], bw_int_to_fixed(1)))) { 501 data->source_width_in_lb = bw_div(data->source_width_pixels[i], data->hsr[i]); 502 } 503 else { 504 data->source_width_in_lb = data->source_width_pixels[i]; 505 } 506 switch (data->lb_bpc[i]) { 507 case 8:
508 data->lb_line_pitch = bw_ceil2(bw_mul(bw_div(bw_frc_to_fixed(2401171875, 100000000), bw_int_to_fixed(3)), bw_ceil2(data->source_width_in_lb, bw_int_to_fixed(8))), bw_int_to_fixed(48));
509 break; 510 case 10: 511 data->lb_line_pitch = bw_ceil2(bw_mul(bw_div(bw_frc_to_fixed(300234375, 10000000), bw_int_to_fixed(3)), bw_ceil2(data->source_width_in_lb, bw_int_to_fixed(8))), bw_int_to_fixed(48)); 512 break; 513 default: 514 data->lb_line_pitch = bw_ceil2(bw_mul(bw_int_to_fixed(data->lb_bpc[i]), data->source_width_in_lb), bw_int_to_fixed(48)); 515 break; 516 }
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