diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3502-drm-amd-display-Enable-SST-DSC-in-DM.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3502-drm-amd-display-Enable-SST-DSC-in-DM.patch | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3502-drm-amd-display-Enable-SST-DSC-in-DM.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3502-drm-amd-display-Enable-SST-DSC-in-DM.patch new file mode 100644 index 00000000..330b423f --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3502-drm-amd-display-Enable-SST-DSC-in-DM.patch @@ -0,0 +1,88 @@ +From c08e0e873d9ba38c5882afbf3c99f209f5791361 Mon Sep 17 00:00:00 2001 +From: David Francis <David.Francis@amd.com> +Date: Wed, 19 Jun 2019 14:30:59 -0400 +Subject: [PATCH 3502/4256] drm/amd/display: Enable SST DSC in DM + +In create_stream_for_sink, check for SST DP connectors + +Parse DSC caps to DC format, then, if DSC is supported, +compute the config + +DSC hardware will be programmed by dc_commit_state + +Tested-by: Mikita Lipski <Mikita.Lipski@amd.com> +Signed-off-by: David Francis <David.Francis@amd.com> +Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +--- + .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 32 ++++++++++++------- + .../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 4 ++- + 2 files changed, 24 insertions(+), 12 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +index 76708b620892..4bec6ffb3940 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +@@ -3587,6 +3587,10 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, + bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false; + int mode_refresh; + int preferred_refresh = 0; ++#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT ++ struct dsc_dec_dpcd_caps dsc_caps; ++ uint32_t link_bandwidth_kbps; ++#endif + + struct dc_sink *sink = NULL; + if (aconnector == NULL) { +@@ -3658,17 +3662,23 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, + &mode, &aconnector->base, con_state, old_stream); + + #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT +- /* stream->timing.flags.DSC = 0; */ +- /* */ +- /* if (aconnector->dc_link && */ +- /* aconnector->dc_link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT #<{(|&& */ +- /* aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.is_dsc_supported|)}>#) */ +- /* if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc, */ +- /* &aconnector->dc_link->dpcd_caps.dsc_caps, */ +- /* dc_link_bandwidth_kbps(aconnector->dc_link, dc_link_get_link_cap(aconnector->dc_link)), */ +- /* &stream->timing, */ +- /* &stream->timing.dsc_cfg)) */ +- /* stream->timing.flags.DSC = 1; */ ++ stream->timing.flags.DSC = 0; ++ ++ if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT) { ++ dc_dsc_parse_dsc_dpcd(aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.raw, ++ aconnector->dc_link->dpcd_caps.dsc_caps.dsc_ext_caps.raw, ++ &dsc_caps); ++ link_bandwidth_kbps = dc_link_bandwidth_kbps(aconnector->dc_link, ++ dc_link_get_link_cap(aconnector->dc_link)); ++ ++ if (dsc_caps.is_dsc_supported) ++ if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc, ++ &dsc_caps, ++ link_bandwidth_kbps, ++ &stream->timing, ++ &stream->timing.dsc_cfg)) ++ stream->timing.flags.DSC = 1; ++ } + #endif + + update_stream_scaling_settings(&mode, dm_state, stream); +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +index 9f8597280814..9328882230d8 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +@@ -549,7 +549,9 @@ bool dm_helpers_dp_write_dsc_enable( + bool enable + ) + { +- return false; ++ uint8_t enable_dsc = enable ? 1 : 0; ++ ++ return dm_helpers_dp_write_dpcd(ctx, stream->sink->link, DP_DSC_ENABLE, &enable_dsc, 1); + } + #endif + +-- +2.17.1 + |