diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_vma.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_vma.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h index a64adc8c883b..8df784a026d2 100644 --- a/drivers/gpu/drm/i915/i915_vma.h +++ b/drivers/gpu/drm/i915/i915_vma.h @@ -52,6 +52,9 @@ static inline bool i915_vma_is_active(const struct i915_vma *vma) return !i915_active_is_idle(&vma->active); } +/* do not reserve memory to prevent deadlocks */ +#define __EXEC_OBJECT_NO_RESERVE BIT(31) + int __must_check __i915_vma_move_to_active(struct i915_vma *vma, struct i915_request *rq); int __must_check i915_vma_move_to_active(struct i915_vma *vma, @@ -243,7 +246,22 @@ i915_vma_pin_ww(struct i915_vma *vma, struct i915_gem_ww_ctx *ww, static inline int __must_check i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags) { - return i915_vma_pin_ww(vma, NULL, size, alignment, flags); + struct i915_gem_ww_ctx ww; + int err; + + i915_gem_ww_ctx_init(&ww, true); +retry: + err = i915_gem_object_lock(vma->obj, &ww); + if (!err) + err = i915_vma_pin_ww(vma, &ww, size, alignment, flags); + if (err == -EDEADLK) { + err = i915_gem_ww_ctx_backoff(&ww); + if (!err) + goto retry; + } + i915_gem_ww_ctx_fini(&ww); + + return err; } int i915_ggtt_pin(struct i915_vma *vma, struct i915_gem_ww_ctx *ww, |