diff options
author | Alvin Lee <Alvin.Lee2@amd.com> | 2023-04-26 19:33:16 -0400 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:34:57 -0400 |
commit | 62cc621604a466ede81a125a2ed63e05695a48cc (patch) | |
tree | d903cd08f7e3afccf25963154c44237867f5cd35 /drivers | |
parent | 273f47997718fc72d96e5a4a640538c00575fa7e (diff) | |
download | linux-stable-62cc621604a466ede81a125a2ed63e05695a48cc.tar.gz linux-stable-62cc621604a466ede81a125a2ed63e05695a48cc.tar.bz2 linux-stable-62cc621604a466ede81a125a2ed63e05695a48cc.zip |
drm/amd/display: Check Vactive for VRR active for FPO + Vactive
[Description]
- For FPO + Vactive cases, we rely on the Vactive display to be at
it's nominal refresh rate because the Vactive pipe may not necessarily
assert P-State allow while it's in VBLANK
- For cases where the Vactive display has a stretched VBLANK due to
VRR, we could underflow when trying to complete an FPO + Vactive
MCLK switch because the FPO display has limited VBLANK time in
waiting for the Vactive display to assert P-State allow naturally
- Block FPO + Vactive if the Vactive display has VRR active (variable
or fixed)
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 5 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_stream.h | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 7 |
3 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 965b348dc8f1..c26dfdd48dd9 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -2604,7 +2604,7 @@ static enum surface_update_type check_update_surfaces_for_stream( if (stream_update->stream && stream_update->stream->freesync_on_desktop && (stream_update->vrr_infopacket || stream_update->allow_freesync || - stream_update->vrr_active_variable)) + stream_update->vrr_active_variable || stream_update->vrr_active_fixed)) su_flags->bits.fams_changed = 1; if (su_flags->raw != 0) @@ -2964,6 +2964,9 @@ static void copy_stream_update_to_stream(struct dc *dc, if (update->vrr_active_variable) stream->vrr_active_variable = *update->vrr_active_variable; + if (update->vrr_active_fixed) + stream->vrr_active_fixed = *update->vrr_active_fixed; + if (update->crtc_timing_adjust) stream->adjust = *update->crtc_timing_adjust; diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h index 0add5ecc895f..d5b3e3a32cc6 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h @@ -233,6 +233,7 @@ struct dc_stream_state { */ bool vrr_active_variable; bool freesync_on_desktop; + bool vrr_active_fixed; bool converter_disable_audio; uint8_t qs_bit; @@ -326,6 +327,7 @@ struct dc_stream_update { bool integer_scaling_update; bool *allow_freesync; bool *vrr_active_variable; + bool *vrr_active_fixed; struct colorspace_transform *gamut_remap; enum dc_color_space *output_color_space; diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c index 826059d5b367..46fd7b68857c 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c @@ -35,6 +35,7 @@ #define DC_LOGGER_INIT(logger) +static const unsigned int MAX_FPO_VACTIVE_BLANK_US = 600; static const struct subvp_high_refresh_list subvp_high_refresh_list = { .min_refresh = 120, .max_refresh = 165, @@ -2924,6 +2925,7 @@ bool dcn32_find_vactive_pipe(struct dc *dc, const struct dc_state *context, uint unsigned int i, pipe_idx; const struct vba_vars_st *vba = &context->bw_ctx.dml.vba; bool vactive_found = false; + unsigned int blank_us = 0; for (i = 0, pipe_idx = 0; i < dc->res_pool->pipe_count; i++) { const struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i]; @@ -2931,7 +2933,10 @@ bool dcn32_find_vactive_pipe(struct dc *dc, const struct dc_state *context, uint if (!pipe->stream) continue; - if (vba->ActiveDRAMClockChangeLatencyMarginPerState[vba->VoltageLevel][vba->maxMpcComb][vba->pipe_plane[pipe_idx]] >= vactive_margin_req_us) { + blank_us = ((pipe->stream->timing.v_total - pipe->stream->timing.v_addressable) * pipe->stream->timing.h_total / + (double)(pipe->stream->timing.pix_clk_100hz * 100)) * 1000000; + if (vba->ActiveDRAMClockChangeLatencyMarginPerState[vba->VoltageLevel][vba->maxMpcComb][vba->pipe_plane[pipe_idx]] >= vactive_margin_req_us && + !(pipe->stream->vrr_active_variable || pipe->stream->vrr_active_fixed) && blank_us < MAX_FPO_VACTIVE_BLANK_US) { vactive_found = true; break; } |