diff options
| author | Aurabindo Pillai <aurabindo.pillai@amd.com> | 2024-10-18 10:52:16 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-11-04 11:36:59 -0500 |
| commit | 2551b4a321a68134360b860113dd460133e856e5 (patch) | |
| tree | acf85d99e4d416efe3fa22eb3cb4fa0f2a993039 | |
| parent | 583c21c2b2595d7bf9542a9406294d2fe16b6f01 (diff) | |
drm/amd/display: parse umc_info or vram_info based on ASIC
An upstream bug report suggests that there are production dGPUs that are
older than DCN401 but still have a umc_info in VBIOS tables with the
same version as expected for a DCN401 product. Hence, reading this
tables should be guarded with a version check.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3678
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c index 0d8498ab9b23..be8fbb04ad98 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c @@ -3127,7 +3127,9 @@ static enum bp_result bios_parser_get_vram_info( struct atom_data_revision revision; // vram info moved to umc_info for DCN4x - if (info && DATA_TABLES(umc_info)) { + if (dcb->ctx->dce_version >= DCN_VERSION_4_01 && + dcb->ctx->dce_version < DCN_VERSION_MAX && + info && DATA_TABLES(umc_info)) { header = GET_IMAGE(struct atom_common_table_header, DATA_TABLES(umc_info)); |