From ad5c99e02047f33bf7043543545e3b17f37c8d5c Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Thu, 16 Dec 2021 15:27:33 +0100
Subject: [PATCH] drm/i915: Remove unused bits of i915_vma/active api
Git-commit: ad5c99e02047f33bf7043543545e3b17f37c8d5c
Patch-mainline: v5.17-rc1
References: git-fixes

When reworking the code to move the eviction fence to the object,
the best code is removed code.

Remove some functions that are unused, and change the function definition
if it's only used in 1 place.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
[mlankhorst: Remove new use of i915_active_has_exclusive]
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-2-maarten.lankhorst@linux.intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/i915_active.c |   28 +++-------------------------
 drivers/gpu/drm/i915/i915_active.h |   17 +----------------
 drivers/gpu/drm/i915/i915_vma.c    |    2 +-
 drivers/gpu/drm/i915/i915_vma.h    |    2 --
 4 files changed, 5 insertions(+), 44 deletions(-)

--- a/drivers/gpu/drm/i915/i915_active.c
+++ b/drivers/gpu/drm/i915/i915_active.c
@@ -426,8 +426,9 @@ replace_barrier(struct i915_active *ref,
 	return true;
 }
 
-int i915_active_ref(struct i915_active *ref, u64 idx, struct dma_fence *fence)
+int i915_active_add_request(struct i915_active *ref, struct i915_request *rq)
 {
+	struct dma_fence *fence = &rq->fence;
 	struct i915_active_fence *active;
 	int err;
 
@@ -436,7 +437,7 @@ int i915_active_ref(struct i915_active *
 	if (err)
 		return err;
 
-	active = active_instance(ref, idx);
+	active = active_instance(ref, i915_request_timeline(rq)->fence_context);
 	if (!active) {
 		err = -ENOMEM;
 		goto out;
@@ -477,29 +478,6 @@ __i915_active_set_fence(struct i915_acti
 	return prev;
 }
 
-static struct i915_active_fence *
-__active_fence(struct i915_active *ref, u64 idx)
-{
-	struct active_node *it;
-
-	it = __active_lookup(ref, idx);
-	if (unlikely(!it)) { /* Contention with parallel tree builders! */
-		spin_lock_irq(&ref->tree_lock);
-		it = __active_lookup(ref, idx);
-		spin_unlock_irq(&ref->tree_lock);
-	}
-	GEM_BUG_ON(!it); /* slot must be preallocated */
-
-	return &it->base;
-}
-
-struct dma_fence *
-__i915_active_ref(struct i915_active *ref, u64 idx, struct dma_fence *fence)
-{
-	/* Only valid while active, see i915_active_acquire_for_context() */
-	return __i915_active_set_fence(ref, __active_fence(ref, idx), fence);
-}
-
 struct dma_fence *
 i915_active_set_exclusive(struct i915_active *ref, struct dma_fence *f)
 {
--- a/drivers/gpu/drm/i915/i915_active.h
+++ b/drivers/gpu/drm/i915/i915_active.h
@@ -164,26 +164,11 @@ void __i915_active_init(struct i915_acti
 	__i915_active_init(ref, active, retire, flags, &__mkey, &__wkey);	\
 } while (0)
 
-struct dma_fence *
-__i915_active_ref(struct i915_active *ref, u64 idx, struct dma_fence *fence);
-int i915_active_ref(struct i915_active *ref, u64 idx, struct dma_fence *fence);
-
-static inline int
-i915_active_add_request(struct i915_active *ref, struct i915_request *rq)
-{
-	return i915_active_ref(ref,
-			       i915_request_timeline(rq)->fence_context,
-			       &rq->fence);
-}
+int i915_active_add_request(struct i915_active *ref, struct i915_request *rq);
 
 struct dma_fence *
 i915_active_set_exclusive(struct i915_active *ref, struct dma_fence *f);
 
-static inline bool i915_active_has_exclusive(struct i915_active *ref)
-{
-	return rcu_access_pointer(ref->excl.fence);
-}
-
 int __i915_active_wait(struct i915_active *ref, int state);
 static inline int i915_active_wait(struct i915_active *ref)
 {
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -1227,7 +1227,7 @@ __i915_request_await_bind(struct i915_re
 	return __i915_request_await_exclusive(rq, &vma->active);
 }
 
-int __i915_vma_move_to_active(struct i915_vma *vma, struct i915_request *rq)
+static int __i915_vma_move_to_active(struct i915_vma *vma, struct i915_request *rq)
 {
 	int err;
 
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -55,8 +55,6 @@ static inline bool i915_vma_is_active(co
 /* 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,
 					 struct i915_request *rq,
 					 unsigned int flags);