[PATCH v3 0/4] Better handle memory pressure at suspend

[Mario Limonciello]

At suspend time if there is memory pressure then dynamically allocating
memory will cause failures that don't clean up properly when trying
suspend a second time.

Move the bigger memory allocations into Linux PM prepare() callback and
drop allocations that aren't really needed in DC code.

v1: https://lore.kernel.org/amd-gfx/20230925143359.14932-1-mario.limonciello@amd.com/
v2: https://lore.kernel.org/amd-gfx/20231002224449.95565-1-mario.limonciello@amd.com/T/#mc800319a05df821cd1875234b09bf212e2e3282b

v2->v3:
 * Handle adev->in_suspend in prepare() and complete()
 * Add missing scratch variable in dc_resource_state_destruct()
 * Revert error code propagation in same series
v1->v2:
 * Handle DC code too
 * Add prepare callback rather than moving symbol calls


Mario Limonciello (4):
  drm/amd: Add support for prepare() and complete() callbacks
  drm/amd: Move evict resources suspend step to prepare()
  drm/amd/display: Destroy DC context while keeping DML
  drm/amd/display: make dc_set_power_state() return type `void` again

 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  2 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c    | 46 ++++++++++++++++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c       | 11 +++--
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 17 ++-----
 drivers/gpu/drm/amd/display/dc/core/dc.c      | 31 +------------
 .../gpu/drm/amd/display/dc/core/dc_resource.c | 12 +++++
 drivers/gpu/drm/amd/display/dc/dc.h           |  2 +-
 7 files changed, 69 insertions(+), 52 deletions(-)

-- 
2.34.1