[PATCH for 6.12 and 6.6 0/2] amdgpu: fix panic on old GPUs

Rosen Penev
2026-02-25T21:50:31Z

Because of incomplete backports to stable kernels, DC ended up breaking
on older GCN 1 GPUs. This patchset adds the missing upstream commits to
at least fix the panic/black screen on boot.

They are applicable to 6.12, 6.6, and 6.1 as those are the currently
supported kernels that 7009e3af0474aca5f64262b3c72fb6e23b232f9b got
backported to.

6.1 needs two extra backports for these two commits to be cherry-picked
cleanly. Those are

96ce96f8773da4814622fd97e5226915a2c30706
d09ef243035b75a6d403ebfeb7e87fa20d7e25c6

Timur Kristóf (2):
drm/amd/display: Add pixel_clock to amd_pp_display_configuration
drm/amd/pm: Use pm_display_cfg in legacy DPM (v2)

.../amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c | 1 +
.../dc/clk_mgr/dce110/dce110_clk_mgr.c | 2 +-
.../drm/amd/display/dc/dm_services_types.h | 2 +-
drivers/gpu/drm/amd/include/dm_pp_interface.h | 1 +
drivers/gpu/drm/amd/pm/amdgpu_dpm_internal.c | 67 +++++++++++++++++++
.../gpu/drm/amd/pm/inc/amdgpu_dpm_internal.h | 2 +
drivers/gpu/drm/amd/pm/legacy-dpm/kv_dpm.c | 4 +-
.../gpu/drm/amd/pm/legacy-dpm/legacy_dpm.c | 6 +-
drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c | 65 ++++++------------
.../gpu/drm/amd/pm/powerplay/amd_powerplay.c | 11 +--
10 files changed, 101 insertions(+), 60 deletions(-)

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2.53.0