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| author |   Matthew Brost <matthew.brost@intel.com> | 2021-10-14 10:19:43 -0700 |
|---|---|---|
| committer |   John Harrison <John.C.Harrison@Intel.com> | 2021-10-15 10:37:26 -0700 |
| commit | f61eae1815705494aa1cd7a8a94f3442fea328d7 (patch) | |
| tree | 56a8035985003c075b140515d7376ffe50307f88 /drivers/gpu/drm/i915/gt/intel_engine_pm.h | |
| parent | drm/i915/guc: Take GT PM ref when deregistering context (diff) | |
| download | linux-dev-f61eae1815705494aa1cd7a8a94f3442fea328d7.tar.xz linux-dev-f61eae1815705494aa1cd7a8a94f3442fea328d7.zip | |
drm/i915/guc: Take engine PM when a context is pinned with GuC submission
Taking a PM reference to prevent intel_gt_wait_for_idle from short
circuiting while any user context has scheduling enabled. Returning GT
idle when it is not can cause all sorts of issues throughout the stack.
v2:
(Daniel Vetter)
- Add might_lock annotations to pin / unpin function
v3:
(CI)
- Drop intel_engine_pm_might_put from unpin path as an async put is
used
v4:
(John Harrison)
- Make intel_engine_pm_might_get/put work with GuC virtual engines
- Update commit message
v5:
- Update commit message again
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/20211014172005.27155-4-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine_pm.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_pm.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.h b/drivers/gpu/drm/i915/gt/intel_engine_pm.h index 6fdeae668e6e..d68675925b79 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.h @@ -6,9 +6,11 @@ #ifndef INTEL_ENGINE_PM_H #define INTEL_ENGINE_PM_H +#include "i915_drv.h" #include "i915_request.h" #include "intel_engine_types.h" #include "intel_wakeref.h" +#include "intel_gt_pm.h" static inline bool intel_engine_pm_is_awake(const struct intel_engine_cs *engine) @@ -31,6 +33,21 @@ static inline bool intel_engine_pm_get_if_awake(struct intel_engine_cs *engine) return intel_wakeref_get_if_active(&engine->wakeref); } +static inline void intel_engine_pm_might_get(struct intel_engine_cs *engine) +{ + if (!intel_engine_is_virtual(engine)) { + intel_wakeref_might_get(&engine->wakeref); + } else { + struct intel_gt *gt = engine->gt; + struct intel_engine_cs *tengine; + intel_engine_mask_t tmp, mask = engine->mask; + + for_each_engine_masked(tengine, gt, mask, tmp) + intel_wakeref_might_get(&tengine->wakeref); + } + intel_gt_pm_might_get(engine->gt); +} + static inline void intel_engine_pm_put(struct intel_engine_cs *engine) { intel_wakeref_put(&engine->wakeref); @@ -52,6 +69,21 @@ static inline void intel_engine_pm_flush(struct intel_engine_cs *engine) intel_wakeref_unlock_wait(&engine->wakeref); } +static inline void intel_engine_pm_might_put(struct intel_engine_cs *engine) +{ + if (!intel_engine_is_virtual(engine)) { + intel_wakeref_might_put(&engine->wakeref); + } else { + struct intel_gt *gt = engine->gt; + struct intel_engine_cs *tengine; + intel_engine_mask_t tmp, mask = engine->mask; + + for_each_engine_masked(tengine, gt, mask, tmp) + intel_wakeref_might_put(&tengine->wakeref); + } + intel_gt_pm_might_put(engine->gt); +} + static inline struct i915_request * intel_engine_create_kernel_request(struct intel_engine_cs *engine) { |