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| author | Oleh Kuzhylnyi <[email protected]> | 2025-04-24 12:40:09 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-06-03 19:35:27 +0000 |
| commit | db122ece325a3a19eeabf98e61db70fe890b4b5a (patch) | |
| tree | 0d13c62437a6403194117a8e214a1e9d9f05e16d /drivers/gpu/drm/amd/display/amdgpu_dm | |
| parent | drm/amd/display: move RMCM programming (diff) | |
| download | kernel-db122ece325a3a19eeabf98e61db70fe890b4b5a.tar.gz kernel-db122ece325a3a19eeabf98e61db70fe890b4b5a.zip | |
drm/amd/display: Indirect buffer transport for FAMS2 commands
[Why]
The quantity and duration of FAMS2 commands are set to increase
in future products. This necessitates the implementation of a new
mechanism for chaining commands together, allowing all commands
to be processed within a single transaction.
[How]
The indirect buffer acts as a shared buffer on the driver side,
mapped to DMUB's internal CW7 address. Its source address and
size are sent through mailbox command to DMUB, triggering the
transaction.
Reviewed-by: Alvin Lee <[email protected]>
Signed-off-by: Oleh Kuzhylnyi <[email protected]>
Signed-off-by: Wayne Lin <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 |
1 files changed, 1 insertions, 0 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 d3100f641ac6..10d5240dfb68 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2404,6 +2404,7 @@ static int dm_dmub_sw_init(struct amdgpu_device *adev) DMUB_WINDOW_MEMORY_TYPE_FB, //DMUB_WINDOW_5_TRACEBUFF DMUB_WINDOW_MEMORY_TYPE_FB, //DMUB_WINDOW_6_FW_STATE DMUB_WINDOW_MEMORY_TYPE_FB, //DMUB_WINDOW_7_SCRATCH_MEM + DMUB_WINDOW_MEMORY_TYPE_FB, //DMUB_WINDOW_IB_MEM DMUB_WINDOW_MEMORY_TYPE_FB, //DMUB_WINDOW_SHARED_STATE }; int r; |