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/make.cross
-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 }
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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