drm/i915: Add ww ctx to i915_gem_object_trylock

This is required for i915_gem_evict_vm, to be able to evict the entire VM,
including objects that are already locked to the current ww ctx.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-12-maarten.lankhorst@linux.intel.com

6 files changed, 12 insertions, 8 deletions

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
index 66f20b803b01..f66d46882ea7 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
@@ -210,9 +210,13 @@ static inline int i915_gem_object_lock_interruptible(struct drm_i915_gem_object
 	return __i915_gem_object_lock(obj, ww, true);
 }
 
-static inline bool i915_gem_object_trylock(struct drm_i915_gem_object *obj)
+static inline bool i915_gem_object_trylock(struct drm_i915_gem_object *obj,
+					   struct i915_gem_ww_ctx *ww)
 {
-	return dma_resv_trylock(obj->base.resv);
+	if (!ww)
+		return dma_resv_trylock(obj->base.resv);
+	else
+		return ww_mutex_trylock(&obj->base.resv->lock, &ww->ctx);
 }
 
 static inline void i915_gem_object_unlock(struct drm_i915_gem_object *obj)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
index f893f0bb8d8e..cc927e49d21f 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
@@ -216,7 +216,7 @@ i915_gem_shrink(struct i915_gem_ww_ctx *ww,
 
 			/* May arrive from get_pages on another bo */
 			if (!ww) {
-				if (!i915_gem_object_trylock(obj))
+				if (!i915_gem_object_trylock(obj, NULL))
 					goto skip;
 			} else {
 				err = i915_gem_object_lock(obj, ww);
@@ -410,7 +410,7 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr
 		if (!vma->iomap || i915_vma_is_active(vma))
 			continue;
 
-		if (!i915_gem_object_trylock(obj))
+		if (!i915_gem_object_trylock(obj, NULL))
 			continue;
 
 		if (__i915_vma_unbind(vma) == 0)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index ad7a8e9e13e7..7df50fd6cc7b 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -656,7 +656,7 @@ static int __i915_gem_object_create_stolen(struct intel_memory_region *mem,
 	cache_level = HAS_LLC(mem->i915) ? I915_CACHE_LLC : I915_CACHE_NONE;
 	i915_gem_object_set_cache_coherency(obj, cache_level);
 
-	if (WARN_ON(!i915_gem_object_trylock(obj)))
+	if (WARN_ON(!i915_gem_object_trylock(obj, NULL)))
 		return -EBUSY;
 
 	i915_gem_object_init_memory_region(obj, mem);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c
index a8a2ad44b7e3..b0a4a2dbe3ee 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c
@@ -26,7 +26,7 @@ static void dbg_poison_ce(struct intel_context *ce)
 		int type = i915_coherent_map_type(ce->engine->i915, obj, true);
 		void *map;
 
-		if (!i915_gem_object_trylock(obj))
+		if (!i915_gem_object_trylock(obj, NULL))
 			return;
 
 		map = i915_gem_object_pin_map(obj, type);
diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c
index a94b8d56c4bb..c0637bf799a3 100644
--- a/drivers/gpu/drm/i915/gt/mock_engine.c
+++ b/drivers/gpu/drm/i915/gt/mock_engine.c
@@ -17,7 +17,7 @@ static int mock_timeline_pin(struct intel_timeline *tl)
 {
 	int err;
 
-	if (WARN_ON(!i915_gem_object_trylock(tl->hwsp_ggtt->obj)))
+	if (WARN_ON(!i915_gem_object_trylock(tl->hwsp_ggtt->obj, NULL)))
 		return -EBUSY;
 
 	err = intel_timeline_pin_map(tl);
diff --git a/drivers/gpu/drm/i915/gt/selftest_migrate.c b/drivers/gpu/drm/i915/gt/selftest_migrate.c
index f637691b5bcb..fa4293d2944f 100644
--- a/drivers/gpu/drm/i915/gt/selftest_migrate.c
+++ b/drivers/gpu/drm/i915/gt/selftest_migrate.c
@@ -465,7 +465,7 @@ create_init_lmem_internal(struct intel_gt *gt, size_t sz, bool try_lmem)
 			return obj;
 	}
 
-	i915_gem_object_trylock(obj);
+	i915_gem_object_trylock(obj, NULL);
 	err = i915_gem_object_pin_pages(obj);
 	if (err) {
 		i915_gem_object_unlock(obj);