diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2021-07-27 03:23:23 +0300 |
|---|---|---|
| committer | John Harrison <John.C.Harrison@Intel.com> | 2021-07-28 03:31:42 +0300 |
| commit | eb5e7da736f36f558b9f8992f5e691a5b3b46b84 (patch) | |
| tree | af446ff4a61dec61c33719f8281235c1e4af1a34 /drivers/gpu/drm/i915/gt/uc/intel_guc.c | |
| parent | d1cee2d37a62888b0fa4babe19bbb06bca976c9f (diff) | |
| download | linux-eb5e7da736f36f558b9f8992f5e691a5b3b46b84.tar.xz | |
drm/i915/guc: Reset implementation for new GuC interface
Reset implementation for new GuC interface. This is the legacy reset
implementation which is called when the i915 owns the engine hang check.
Future patches will offload the engine hang check to GuC but we will
continue to maintain this legacy path as a fallback and this code path
is also required if the GuC dies.
With the new GuC interface it is not possible to reset individual
engines - it is only possible to reset the GPU entirely. This patch
forces an entire chip reset if any engine hangs.
v2:
(Michal)
- Check for -EPIPE rather than -EIO (CT deadlock/corrupt check)
v3:
(John H)
- Split into a series of smaller patches
v4:
(John H)
- Fix typo
- Add braces around if statements in reset code
v5:
(Checkpatch)
- Fix warnings
Cc: 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/20210727002348.97202-9-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_guc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index 6661dcb02239..9b09395b998f 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -573,19 +573,6 @@ int intel_guc_suspend(struct intel_guc *guc) } /** - * intel_guc_reset_engine() - ask GuC to reset an engine - * @guc: intel_guc structure - * @engine: engine to be reset - */ -int intel_guc_reset_engine(struct intel_guc *guc, - struct intel_engine_cs *engine) -{ - /* XXX: to be implemented with submission interface rework */ - - return -ENODEV; -} - -/** * intel_guc_resume() - notify GuC resuming from suspend state * @guc: the guc */ |