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drm/amd/display: Add HDMI DSC native YCbCr422 support

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[WHY && HOW]
For some HDMI OVT timing, YCbCr422 encoding fails at the DSC
bandwidth check. The root cause is our DSC policy for timing
doesn't account for HDMI YCbCr422 native support.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Chris Park <chris.park@amd.com>
Signed-off-by: Leo Ma <hanghong.ma@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Ma 2024-08-19 13:25:27 -04:00 committed by Alex Deucher
parent e79563bf5f
commit 07bfa9cdbf
3 changed files with 7 additions and 5 deletions
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4
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
View file

@ -1147,7 +1147,7 @@ static int compute_mst_dsc_configs_for_link(struct drm_atomic_state *state,
params[count].num_slices_v = aconnector->dsc_settings.dsc_num_slices_v;
params[count].bpp_overwrite = aconnector->dsc_settings.dsc_bits_per_pixel;
params[count].compression_possible = stream->sink->dsc_caps.dsc_dec_caps.is_dsc_supported;
dc_dsc_get_policy_for_timing(params[count].timing, 0, &dsc_policy);
dc_dsc_get_policy_for_timing(params[count].timing, 0, &dsc_policy, dc_link_get_highest_encoding_format(stream->link));
if (!dc_dsc_compute_bandwidth_range(
stream->sink->ctx->dc->res_pool->dscs[0],
stream->sink->ctx->dc->debug.dsc_min_slice_height_override,
@ -1681,7 +1681,7 @@ static bool is_dsc_common_config_possible(struct dc_stream_state *stream,
{
struct dc_dsc_policy dsc_policy = {0};
dc_dsc_get_policy_for_timing(&stream->timing, 0, &dsc_policy);
dc_dsc_get_policy_for_timing(&stream->timing, 0, &dsc_policy, dc_link_get_highest_encoding_format(stream->link));
dc_dsc_compute_bandwidth_range(stream->sink->ctx->dc->res_pool->dscs[0],
stream->sink->ctx->dc->debug.dsc_min_slice_height_override,
dsc_policy.min_target_bpp * 16,

3
drivers/gpu/drm/amd/display/dc/dc_dsc.h
View file

@ -101,7 +101,8 @@ uint32_t dc_dsc_stream_bandwidth_overhead_in_kbps(
*/
void dc_dsc_get_policy_for_timing(const struct dc_crtc_timing *timing,
uint32_t max_target_bpp_limit_override_x16,
struct dc_dsc_policy *policy);
struct dc_dsc_policy *policy,
const enum dc_link_encoding_format link_encoding);
void dc_dsc_policy_set_max_target_bpp_limit(uint32_t limit);

5
drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c
View file

@ -883,7 +883,7 @@ static bool setup_dsc_config(
memset(dsc_cfg, 0, sizeof(struct dc_dsc_config));
dc_dsc_get_policy_for_timing(timing, options->max_target_bpp_limit_override_x16, &policy);
dc_dsc_get_policy_for_timing(timing, options->max_target_bpp_limit_override_x16, &policy, link_encoding);
pic_width = timing->h_addressable + timing->h_border_left + timing->h_border_right;
pic_height = timing->v_addressable + timing->v_border_top + timing->v_border_bottom;
@ -1173,7 +1173,8 @@ uint32_t dc_dsc_stream_bandwidth_overhead_in_kbps(
void dc_dsc_get_policy_for_timing(const struct dc_crtc_timing *timing,
uint32_t max_target_bpp_limit_override_x16,
struct dc_dsc_policy *policy)
struct dc_dsc_policy *policy,
const enum dc_link_encoding_format link_encoding)
{
uint32_t bpc = 0;