Reviewed-by: Alex Hung <alex.hung@xxxxxxx>
On 2023-08-16 15:26, Alex Hung wrote:
From: Harry Wentland <harry.wentland@xxxxxxx>
[WHAT]
Prepare a virtual connector for writeback.
Signed-off-by: Harry Wentland <harry.wentland@xxxxxxx>
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 11 +++++++++--
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c | 3 ++-
2 files changed, 11 insertions(+), 3 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 b1245b732cc9..00254fdfa1f7 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1675,6 +1675,10 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
init_data.dcn_reg_offsets = adev->reg_offset[DCE_HWIP][0];
init_data.nbio_reg_offsets = adev->reg_offset[NBIO_HWIP][0];
+ /* Enable DWB for tested platforms only */
+ if (adev->ip_versions[DCE_HWIP][0] >= IP_VERSION(3, 0, 0))
+ init_data.num_virtual_links = 1;
+
INIT_LIST_HEAD(&adev->dm.da_list);
retrieve_dmi_info(&adev->dm);
@@ -4385,6 +4389,11 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
continue;
}
+ link = dc_get_link_at_index(dm->dc, i);
+
+ if (link->connector_signal == SIGNAL_TYPE_VIRTUAL)
+ continue;
+
aconnector = kzalloc(sizeof(*aconnector), GFP_KERNEL);
if (!aconnector)
goto fail;
@@ -4403,8 +4412,6 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
goto fail;
}
- link = dc_get_link_at_index(dm->dc, i);
-
if (!dc_link_detect_connection_type(link, &new_connection_type))
DRM_ERROR("KMS: Failed to detect connector\n");
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
index 2a7f47642a44..65e8504e6063 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
@@ -96,7 +96,8 @@ static void enable_memory_low_power(struct dc *dc)
if (dc->debug.enable_mem_low_power.bits.vpg && dc->res_pool->stream_enc[0]->vpg->funcs->vpg_powerdown) {
// Power down VPGs
for (i = 0; i < dc->res_pool->stream_enc_count; i++)
- dc->res_pool->stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->stream_enc[i]->vpg);
+ if (dc->res_pool->stream_enc[i]->vpg)
+ dc->res_pool->stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->stream_enc[i]->vpg);
#if defined(CONFIG_DRM_AMD_DC_FP)
for (i = 0; i < dc->res_pool->hpo_dp_stream_enc_count; i++)
dc->res_pool->hpo_dp_stream_enc[i]->vpg->funcs->vpg_powerdown(dc->res_pool->hpo_dp_stream_enc[i]->vpg);
