diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2021-07-21 14:50:57 -0700 |
|---|---|---|
| committer | John Harrison <John.C.Harrison@Intel.com> | 2021-07-22 10:07:21 -0700 |
| commit | f4eb1f3fe94683cd7bdbb355d913bacf7e5d205f (patch) | |
| tree | 88282130f6d38bc536ebe6d256ce4c10dbe9efd7 /drivers/gpu/drm/drm_drv.c | |
| parent | 4dbd3944055507d53708f82e9252190800b95769 (diff) | |
drm/i915/guc: Ensure G2H response has space in buffer
Ensure G2H response has space in the buffer before sending H2G CTB as
the GuC can't handle any backpressure on the G2H interface.
v2:
(Matthew)
- s/INTEL_GUC_SEND/INTEL_GUC_CT_SEND
v3:
(Matthew)
- Add G2H credit accounting to blocking path, add g2h_release_space
helper
(John H)
- CTB_G2H_BUFFER_SIZE / 4 == G2H_ROOM_BUFFER_SIZE
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210721215101.139794-15-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/drm_drv.c')
0 files changed, 0 insertions, 0 deletions