diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/freesync/freesync.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index c9150019aab0..f3b41087678b 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -153,7 +153,7 @@ unsigned int mod_freesync_calc_v_total_from_refresh( * round down the vtotal value to avoid stretching vblank over * panel's vtotal boundary. */ - v_total = div64_u64(div64_u64(((unsigned long long)( + v_total = (unsigned int)div64_u64(div64_u64(((unsigned long long)( frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)), stream->timing.h_total), 1000000); } else if (refresh_in_uhz >= stream->timing.max_refresh_in_uhz) { @@ -161,11 +161,11 @@ unsigned int mod_freesync_calc_v_total_from_refresh( * round up the vtotal value to prevent off-by-one error causing * v_total_min to be below the panel's lower bound */ - v_total = div64_u64(div64_u64(((unsigned long long)( + v_total = (unsigned int)div64_u64(div64_u64(((unsigned long long)( frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)), stream->timing.h_total) + (1000000 - 1), 1000000); } else { - v_total = div64_u64(div64_u64(((unsigned long long)( + v_total = (unsigned int)div64_u64(div64_u64(((unsigned long long)( frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)), stream->timing.h_total) + 500000, 1000000); } @@ -196,11 +196,11 @@ static unsigned int calc_v_total_from_duration( uint32_t h_total_up_scaled; h_total_up_scaled = stream->timing.h_total * 10000; - v_total = div_u64((unsigned long long)duration_in_us + v_total = (unsigned int)div_u64((unsigned long long)duration_in_us * stream->timing.pix_clk_100hz + (h_total_up_scaled - 1), h_total_up_scaled); //ceiling for MMax and MMin for MVRR } else { - v_total = div64_u64(div64_u64(((unsigned long long)( + v_total = (unsigned int)div64_u64(div64_u64(((unsigned long long)( duration_in_us) * (stream->timing.pix_clk_100hz / 10)), stream->timing.h_total), 1000); } @@ -232,22 +232,28 @@ static void update_v_total_for_static_ramp( target_duration_in_us; /* Calculate ratio between new and current frame duration with 3 digit */ - unsigned int frame_duration_ratio = div64_u64(1000000, + uint64_t frame_duration_ratio_u64 = div64_u64(1000000, (1000 + div64_u64(((unsigned long long)( STATIC_SCREEN_RAMP_DELTA_REFRESH_RATE_PER_FRAME) * current_duration_in_us), 1000000))); + ASSERT(frame_duration_ratio_u64 <= 0xFFFFFFFF); + unsigned int frame_duration_ratio = (unsigned int)frame_duration_ratio_u64; /* Calculate delta between new and current frame duration in us */ - unsigned int frame_duration_delta = div64_u64(((unsigned long long)( + uint64_t frame_duration_delta_u64 = div64_u64(((unsigned long long)( current_duration_in_us) * (1000 - frame_duration_ratio)), 1000); + ASSERT(frame_duration_delta_u64 <= 0xFFFFFFFF); + unsigned int frame_duration_delta = (unsigned int)frame_duration_delta_u64; /* Adjust frame duration delta based on ratio between current and * standard frame duration (frame duration at 60 Hz refresh rate). */ - unsigned int ramp_rate_interpolated = div64_u64(((unsigned long long)( + uint64_t ramp_rate_interpolated_u64 = div64_u64(((unsigned long long)( frame_duration_delta) * current_duration_in_us), 16666); + ASSERT(ramp_rate_interpolated_u64 <= 0xFFFFFFFF); + unsigned int ramp_rate_interpolated = (unsigned int)ramp_rate_interpolated_u64; /* Going to a higher refresh rate (lower frame duration) */ if (ramp_direction_is_up) { @@ -277,7 +283,7 @@ static void update_v_total_for_static_ramp( } } - v_total = div64_u64(div64_u64(((unsigned long long)( + v_total = (unsigned int)div64_u64(div64_u64(((unsigned long long)( current_duration_in_us) * (stream->timing.pix_clk_100hz / 10)), stream->timing.h_total), 1000); @@ -1058,8 +1064,12 @@ void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, else in_out_vrr->fixed_refresh_in_uhz = 0; - refresh_range = div_u64(in_out_vrr->max_refresh_in_uhz + 500000, 1000000) - - div_u64(in_out_vrr->min_refresh_in_uhz + 500000, 1000000); + { + uint64_t rr_tmp = div_u64(in_out_vrr->max_refresh_in_uhz + 500000, 1000000) - + div_u64(in_out_vrr->min_refresh_in_uhz + 500000, 1000000); + ASSERT(rr_tmp <= 0xFFFFFFFF); + refresh_range = (unsigned int)rr_tmp; + } in_out_vrr->supported = true; } |