On Fri, Jan 10, 2020 at 2:41 PM <mikita.lipski@xxxxxxx> wrote: > > From: Mikita Lipski <mikita.lipski@xxxxxxx> > > [why] > Compilation error "undefined reference to `__udivdi3'" was > thrown on i386 architecture. > > [how] > Use div_u64 for unsigned long division instead of a divide operator. > > Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> > Signed-off-by: Mikita Lipski <mikita.lipski@xxxxxxx> Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx> > --- > drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c > index 5a476028ee37..52fb207393ef 100644 > --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c > +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c > @@ -533,7 +533,7 @@ static int kbps_to_peak_pbn(int kbps) > u64 peak_kbps = kbps; > > peak_kbps *= 1006; > - peak_kbps /= 1000; > + peak_kbps = div_u64(peak_kbps, 1000); > return (int) DIV_ROUND_UP(peak_kbps * 64, (54 * 8 * 1000)); > } > > @@ -565,7 +565,7 @@ static int bpp_x16_from_pbn(struct dsc_mst_fairness_params param, int pbn) > struct dc_dsc_config dsc_config; > u64 kbps; > > - kbps = (u64)pbn * 994 * 8 * 54 / 64; > + kbps = div_u64((u64)pbn * 994 * 8 * 54, 64); > dc_dsc_compute_config( > param.sink->ctx->dc->res_pool->dscs[0], > ¶m.sink->sink_dsc_caps.dsc_dec_caps, > -- > 2.17.1 > > _______________________________________________ > amd-gfx mailing list > amd-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/amd-gfx _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
