drm/i915: Remove deadcode

i915_active_acquire_for_context() was added in 2020 by
commit 5d93413 ("drm/i915: Export a preallocate variant of
i915_active_acquire()") but has never been used.

The last use of __i915_gem_object_is_lmem() was removed in 2021 by
commit ff20afc ("drm/i915: Update error capture code to avoid using
the current vma state")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Tvrtko Ursulin <tursulin@igalia.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241227113754.25871-1-tursulin@igalia.com

Author: Dr. David Alan Gilbert

drivers/gpu/drm/i915/gem/i915_gem_lmem.c

@@ -52,29 +52,6 @@ bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj)
 		      mr->type == INTEL_MEMORY_STOLEN_LOCAL);
 }
 
-/**
- * __i915_gem_object_is_lmem - Whether the object is resident in
- * lmem while in the fence signaling critical path.
- * @obj: The object to check.
- *
- * This function is intended to be called from within the fence signaling
- * path where the fence, or a pin, keeps the object from being migrated. For
- * example during gpu reset or similar.
- *
- * Return: Whether the object is resident in lmem.
- */
-bool __i915_gem_object_is_lmem(struct drm_i915_gem_object *obj)
-{
-	struct intel_memory_region *mr = READ_ONCE(obj->mm.region);
-
-#ifdef CONFIG_LOCKDEP
-	GEM_WARN_ON(dma_resv_test_signaled(obj->base.resv, DMA_RESV_USAGE_BOOKKEEP) &&
-		    i915_gem_object_evictable(obj));
-#endif
-	return mr && (mr->type == INTEL_MEMORY_LOCAL ||
-		      mr->type == INTEL_MEMORY_STOLEN_LOCAL);
-}
-
 /**
  * __i915_gem_object_create_lmem_with_ps - Create lmem object and force the
  * minimum page size for the backing pages.

drivers/gpu/drm/i915/gem/i915_gem_lmem.h

@@ -19,8 +19,6 @@ i915_gem_object_lmem_io_map(struct drm_i915_gem_object *obj,
 
 bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj);
 
-bool __i915_gem_object_is_lmem(struct drm_i915_gem_object *obj);
-
 struct drm_i915_gem_object *
 i915_gem_object_create_lmem_from_data(struct drm_i915_private *i915,
 				      const void *data, size_t size);

drivers/gpu/drm/i915/i915_active.c

@@ -527,24 +527,6 @@ int i915_active_acquire(struct i915_active *ref)
 	return err;
 }
 
-int i915_active_acquire_for_context(struct i915_active *ref, u64 idx)
-{
-	struct i915_active_fence *active;
-	int err;
-
-	err = i915_active_acquire(ref);
-	if (err)
-		return err;
-
-	active = active_instance(ref, idx);
-	if (!active) {
-		i915_active_release(ref);
-		return -ENOMEM;
-	}
-
-	return 0; /* return with active ref */
-}
-
 void i915_active_release(struct i915_active *ref)
 {
 	debug_active_assert(ref);

drivers/gpu/drm/i915/i915_active.h

@@ -186,7 +186,6 @@ int i915_request_await_active(struct i915_request *rq,
 #define I915_ACTIVE_AWAIT_BARRIER BIT(2)
 
 int i915_active_acquire(struct i915_active *ref);
-int i915_active_acquire_for_context(struct i915_active *ref, u64 idx);
 bool i915_active_acquire_if_busy(struct i915_active *ref);
 
 void i915_active_release(struct i915_active *ref);