From: Lang Yu <Lang.Yu@xxxxxxx> Replace "/" with div_u64 for 64bit division on 32bit OS. Signed-off-by: Lang Yu <Lang.Yu@xxxxxxx> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx> Acked-by: Anson Jacob <Anson.Jacob@xxxxxxx> Acked-by: Huang Rui <ray.huang@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 ++-- drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c | 2 +- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 3 ++- 3 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 8506739a22f7..fa5059f71727 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -3688,8 +3688,8 @@ uint32_t dc_link_bandwidth_kbps( * but the difference is minimal and is in a safe direction, * which all works well around potential ambiguity of DP 1.4a spec. */ - link_bw_kbps = mul_u64_u32_shr(BIT_ULL(32) * 970LL / 1000, - link_bw_kbps, 32); + long long fec_link_bw_kbps = link_bw_kbps * 970LL; + link_bw_kbps = (uint32_t)(div64_s64(fec_link_bw_kbps, 1000LL)); } return link_bw_kbps; diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c index 17ec63253fc3..bc942725b9d8 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c @@ -240,7 +240,7 @@ static bool calc_fb_divider_checking_tolerance( pll_settings->calculated_pix_clk_100hz = actual_calculated_clock_100hz; pll_settings->vco_freq = - actual_calculated_clock_100hz * post_divider / 10; + div_u64(actual_calculated_clock_100hz * post_divider, 10); return true; } return false; 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 064f158ce671..6505373483bb 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c @@ -3506,7 +3506,8 @@ void dcn20_update_bounding_box(struct dc *dc, struct _vcs_dpi_soc_bounding_box_s calculated_states[i].dram_speed_mts = uclk_states[i] * 16 / 1000; // FCLK:UCLK ratio is 1.08 - min_fclk_required_by_uclk = mul_u64_u32_shr(BIT_ULL(32) * 1080 / 1000000, uclk_states[i], 32); + min_fclk_required_by_uclk = div_u64(((unsigned long long)uclk_states[i]) * 1080, + 1000000); calculated_states[i].fabricclk_mhz = (min_fclk_required_by_uclk < min_dcfclk) ? min_dcfclk : min_fclk_required_by_uclk; -- 2.25.1 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
