linux-kernel - [PATCH] drm/i915: Remove deadcode

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Message-ID: <20241222174751.222975-1-linux@treblig.org>
Date: Sun, 22 Dec 2024 17:47:51 +0000
From: linux@...blig.org
To: jani.nikula@...ux.intel.com,
	joonas.lahtinen@...ux.intel.com,
	rodrigo.vivi@...el.com,
	tursulin@...ulin.net,
	intel-gfx@...ts.freedesktop.org
Cc: airlied@...il.com,
	simona@...ll.ch,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] drm/i915: Remove deadcode

From: "Dr. David Alan Gilbert" <linux@...blig.org>

i915_active_acquire_for_context() was added in 2020 by
commit 5d9341370f57 ("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 ff20afc4cee7 ("drm/i915: Update error capture code to avoid using
the current vma state")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/gpu/drm/i915/gem/i915_gem_lmem.c | 23 -----------------------
 drivers/gpu/drm/i915/gem/i915_gem_lmem.h |  2 --
 drivers/gpu/drm/i915/i915_active.c       | 18 ------------------
 drivers/gpu/drm/i915/i915_active.h       |  1 -
 4 files changed, 44 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c
index 3198b64ad7db..388f90784d8a 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c
+++ b/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.
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.h b/drivers/gpu/drm/i915/gem/i915_gem_lmem.h
index 5a7a14e85c3f..ecd8f1a633a1 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.h
+++ b/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);
diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c
index 35319228bc51..0dbc4e289300 100644
--- a/drivers/gpu/drm/i915/i915_active.c
+++ b/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);
diff --git a/drivers/gpu/drm/i915/i915_active.h b/drivers/gpu/drm/i915/i915_active.h
index 77c676ecc263..821f7c21ea9b 100644
--- a/drivers/gpu/drm/i915/i915_active.h
+++ b/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);
-- 
2.47.1