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drm/amd/display: Skip querying caps when DMCUB emulation is in use

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[Why]
Workaround to avoid accessing DMCUB state too early if the emulator
is in use - we don't support any of the features the caps are querying
with emulation anyway.

[How]
Guard the query if emulation is in use.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicholas Kazlauskas 2023-06-22 16:14:22 -04:00 committed by Alex Deucher
parent bf27f5defe
commit a243e38e69
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
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@ -381,6 +381,9 @@ void dc_dmub_srv_query_caps_cmd(struct dc_dmub_srv *dc_dmub_srv)
{
union dmub_rb_cmd cmd = { 0 };
if (dc_dmub_srv->ctx->dc->debug.dmcub_emulation)
return;
memset(&cmd, 0, sizeof(cmd));
/* Prepare fw command */