diff options
| author | Daniele Ceraolo Spurio <[email protected]> | 2018-10-16 15:46:47 -0700 |
|---|---|---|
| committer | Chris Wilson <[email protected]> | 2018-10-17 17:46:38 +0100 |
| commit | 20fd600099754bb1d29405247c6c2b74ebc3b9f2 (patch) | |
| tree | 64828ad554640121f6b6f00eec415477c44e2fa1 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 138bdac891831d3e86ee75a5217c9b0f001ab12b (diff) | |
drm/i915/guc: fix GuC suspend/resume
The ENTER/EXIT_S_STATE actions queue the save/restore operation in GuC
FW and then return, so waiting on the H2G is not enough to guarantee
GuC is done.
When all the processing is done, GuC writes 0 to scratch register 14,
so we can poll on that. Note that GuC does not ensure that the value
in the register is different from 0 while the action is in progress
so we need to take care of that ourselves as well.
v2: improve comment, return early on GuC error and improve error
message (Michal)
Cc: Chris Wilson <[email protected]>
Cc: Michal Wajdeczko <[email protected]>
Signed-off-by: Daniele Ceraolo Spurio <[email protected]>
Acked-by: Chris Wilson <[email protected]>
Reviewed-by: Michal Wajdeczko <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions