[Intel-gfx] [PATCH 37/70] drm/i915: Squash more pointer indirection for i915_is_gtt

Chris Wilson chris at chris-wilson.co.uk
Tue Apr 7 08:21:01 PDT 2015


12:58 < jlahtine> there're actually equally many i915_is_ggtt(vma->vm)
calls
12:58 < jlahtine> (one less)
12:59 < jlahtine> so while at it I'd make it vm->is_ggtt and
vma->is_ggtt
12:59 < jlahtine> then get rid of the whole helper, maybe
13:00 < ickle> you preempted my beautiful macro
13:03 < ickle> just don't complain about the increased churn

* to be squashed into the previous patch if desired
---
 drivers/gpu/drm/i915/i915_debugfs.c        |  4 ++--
 drivers/gpu/drm/i915/i915_drv.h            |  7 +------
 drivers/gpu/drm/i915/i915_gem.c            | 32 ++++++++++++++----------------
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |  5 ++---
 drivers/gpu/drm/i915/i915_gem_gtt.c        | 21 ++++++++++----------
 drivers/gpu/drm/i915/i915_gem_gtt.h        |  1 +
 drivers/gpu/drm/i915/i915_gpu_error.c      |  2 +-
 drivers/gpu/drm/i915/i915_trace.h          | 18 ++++++-----------
 8 files changed, 39 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 6c147e1bff0c..2e851c6a310c 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -156,7 +156,7 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 	if (obj->fence_reg != I915_FENCE_REG_NONE)
 		seq_printf(m, " (fence: %d)", obj->fence_reg);
 	list_for_each_entry(vma, &obj->vma_list, vma_link) {
-		if (!i915_is_ggtt(vma->vm))
+		if (!vma->is_ggtt)
 			seq_puts(m, " (pp");
 		else
 			seq_puts(m, " (g");
@@ -335,7 +335,7 @@ static int per_file_stats(int id, void *ptr, void *data)
 			if (!drm_mm_node_allocated(&vma->node))
 				continue;
 
-			if (i915_is_ggtt(vma->vm)) {
+			if (vma->is_ggtt) {
 				stats->global += obj->base.size;
 				continue;
 			}
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2a5343a9ed24..0dbc7d69f148 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2896,16 +2896,11 @@ bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj);
 /* Some GGTT VM helpers */
 #define i915_obj_to_ggtt(obj) \
 	(&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
-static inline bool i915_is_ggtt(struct i915_address_space *vm)
-{
-	return vm->is_ggtt;
-}
 
 static inline struct i915_hw_ppgtt *
 i915_vm_to_ppgtt(struct i915_address_space *vm)
 {
-	WARN_ON(i915_is_ggtt(vm));
-
+	WARN_ON(vm->is_ggtt);
 	return container_of(vm, struct i915_hw_ppgtt, base);
 }
 
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 796dc69a6c47..36add864593a 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3200,8 +3200,7 @@ int i915_vma_unbind(struct i915_vma *vma)
 	 * cause memory corruption through use-after-free.
 	 */
 
-	if (i915_is_ggtt(vma->vm) &&
-	    vma->ggtt_view.type == I915_GGTT_VIEW_NORMAL) {
+	if (vma->is_ggtt && vma->ggtt_view.type == I915_GGTT_VIEW_NORMAL) {
 		i915_gem_object_finish_gtt(obj);
 
 		/* release the fence reg _after_ flushing */
@@ -3215,7 +3214,7 @@ int i915_vma_unbind(struct i915_vma *vma)
 	vma->unbind_vma(vma);
 
 	list_del_init(&vma->mm_list);
-	if (i915_is_ggtt(vma->vm)) {
+	if (vma->is_ggtt) {
 		if (vma->ggtt_view.type == I915_GGTT_VIEW_NORMAL) {
 			obj->map_and_fenceable = false;
 		} else if (vma->ggtt_view.pages) {
@@ -3658,7 +3657,7 @@ i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj,
 	struct i915_vma *vma;
 	int ret;
 
-	if(WARN_ON(i915_is_ggtt(vm) != !!ggtt_view))
+	if (WARN_ON(vm->is_ggtt != !!ggtt_view))
 		return ERR_PTR(-EINVAL);
 
 	fence_size = i915_gem_get_gtt_size(dev,
@@ -3756,8 +3755,7 @@ search_free:
 
 	/*  allocate before insert / bind */
 	if (vma->vm->allocate_va_range) {
-		trace_i915_va_alloc(vma->vm, vma->node.start, vma->node.size,
-				VM_TO_TRACE_NAME(vma->vm));
+		trace_i915_va_alloc(vma->vm, vma->node.start, vma->node.size);
 		ret = vma->vm->allocate_va_range(vma->vm,
 						vma->node.start,
 						vma->node.size);
@@ -4360,13 +4358,13 @@ i915_gem_object_do_pin(struct drm_i915_gem_object *obj,
 	if (WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base))
 		return -ENODEV;
 
-	if (WARN_ON(flags & (PIN_GLOBAL | PIN_MAPPABLE) && !i915_is_ggtt(vm)))
+	if (WARN_ON(flags & (PIN_GLOBAL | PIN_MAPPABLE) && !vm->is_ggtt))
 		return -EINVAL;
 
 	if (WARN_ON((flags & (PIN_MAPPABLE | PIN_GLOBAL)) == PIN_MAPPABLE))
 		return -EINVAL;
 
-	if (WARN_ON(i915_is_ggtt(vm) != !!ggtt_view))
+	if (WARN_ON(vm->is_ggtt != !!ggtt_view))
 		return -EINVAL;
 
 	vma = ggtt_view ? i915_gem_obj_to_ggtt_view(obj, ggtt_view) :
@@ -4456,7 +4454,7 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj,
 		    uint64_t flags)
 {
 	return i915_gem_object_do_pin(obj, vm,
-				      i915_is_ggtt(vm) ? &i915_ggtt_view_normal : NULL,
+				      vm->is_ggtt ? &i915_ggtt_view_normal : NULL,
 				      size, alignment, flags);
 }
 
@@ -4788,7 +4786,7 @@ struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
 {
 	struct i915_vma *vma;
 	list_for_each_entry(vma, &obj->vma_list, vma_link) {
-		if (i915_is_ggtt(vma->vm) &&
+		if (vma->is_ggtt &&
 		    vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
 			continue;
 		if (vma->vm == vm)
@@ -4824,7 +4822,7 @@ void i915_gem_vma_destroy(struct i915_vma *vma)
 
 	vm = vma->vm;
 
-	if (!i915_is_ggtt(vm))
+	if (!vm->is_ggtt)
 		i915_ppgtt_put(i915_vm_to_ppgtt(vm));
 
 	list_del(&vma->vma_link);
@@ -5188,7 +5186,7 @@ init_ring_lists(struct intel_engine_cs *ring)
 void i915_init_vm(struct drm_i915_private *dev_priv,
 		  struct i915_address_space *vm)
 {
-	if (!i915_is_ggtt(vm))
+	if (!vm->is_ggtt)
 		drm_mm_init(&vm->mm, vm->start, vm->total);
 	vm->dev = dev_priv->dev;
 	INIT_LIST_HEAD(&vm->active_list);
@@ -5353,7 +5351,7 @@ i915_gem_obj_offset(struct drm_i915_gem_object *o,
 	WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base);
 
 	list_for_each_entry(vma, &o->vma_list, vma_link) {
-		if (i915_is_ggtt(vma->vm) &&
+		if (vma->is_ggtt &&
 		    vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
 			continue;
 		if (vma->vm == vm)
@@ -5361,7 +5359,7 @@ i915_gem_obj_offset(struct drm_i915_gem_object *o,
 	}
 
 	WARN(1, "%s vma for this object not found.\n",
-	     i915_is_ggtt(vm) ? "global" : "ppgtt");
+	     vm->is_ggtt ? "global" : "ppgtt");
 	return -1;
 }
 
@@ -5387,7 +5385,7 @@ bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
 	struct i915_vma *vma;
 
 	list_for_each_entry(vma, &o->vma_list, vma_link) {
-		if (i915_is_ggtt(vma->vm) &&
+		if (vma->is_ggtt &&
 		    vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
 			continue;
 		if (vma->vm == vm && drm_mm_node_allocated(&vma->node))
@@ -5434,7 +5432,7 @@ unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
 	BUG_ON(list_empty(&o->vma_list));
 
 	list_for_each_entry(vma, &o->vma_list, vma_link) {
-		if (i915_is_ggtt(vma->vm) &&
+		if (vma->is_ggtt &&
 		    vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
 			continue;
 		if (vma->vm == vm)
@@ -5447,7 +5445,7 @@ bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj)
 {
 	struct i915_vma *vma;
 	list_for_each_entry(vma, &obj->vma_list, vma_link) {
-		if (i915_is_ggtt(vma->vm) &&
+		if (vma->is_ggtt &&
 		    vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
 			continue;
 		if (vma->pin_count > 0)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 1eda0bdc5eab..5f735b491e2f 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -642,7 +642,7 @@ need_reloc_mappable(struct i915_vma *vma)
 	if (entry->relocation_count == 0)
 		return false;
 
-	if (!i915_is_ggtt(vma->vm))
+	if (!vma->is_ggtt)
 		return false;
 
 	/* See also use_cpu_reloc() */
@@ -661,8 +661,7 @@ eb_vma_misplaced(struct i915_vma *vma)
 	struct drm_i915_gem_exec_object2 *entry = vma->exec_entry;
 	struct drm_i915_gem_object *obj = vma->obj;
 
-	WARN_ON(entry->flags & __EXEC_OBJECT_NEEDS_MAP &&
-	       !i915_is_ggtt(vma->vm));
+	WARN_ON(entry->flags & __EXEC_OBJECT_NEEDS_MAP && !vma->is_ggtt);
 
 	if (entry->alignment &&
 	    vma->node.start & (entry->alignment - 1))
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index df1ee971138e..85077beb9338 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1703,7 +1703,7 @@ void i915_gem_restore_gtt_mappings(struct drm_device *dev)
 					container_of(vm, struct i915_hw_ppgtt,
 						     base);
 
-			if (i915_is_ggtt(vm))
+			if (vm->is_ggtt)
 				ppgtt = dev_priv->mm.aliasing_ppgtt;
 
 			gen6_write_page_range(dev_priv, &ppgtt->pd,
@@ -1881,7 +1881,7 @@ static void i915_ggtt_bind_vma(struct i915_vma *vma,
 	unsigned int flags = (cache_level == I915_CACHE_NONE) ?
 		AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY;
 
-	BUG_ON(!i915_is_ggtt(vma->vm));
+	BUG_ON(!vma->is_ggtt);
 	intel_gtt_insert_sg_entries(vma->ggtt_view.pages, entry, flags);
 	vma->bound = GLOBAL_BIND;
 }
@@ -1901,7 +1901,7 @@ static void i915_ggtt_unbind_vma(struct i915_vma *vma)
 	const unsigned int first = vma->node.start >> PAGE_SHIFT;
 	const unsigned int size = vma->obj->base.size >> PAGE_SHIFT;
 
-	BUG_ON(!i915_is_ggtt(vma->vm));
+	BUG_ON(!vma->is_ggtt);
 	vma->bound = 0;
 	intel_gtt_clear_range(first, size);
 }
@@ -1919,7 +1919,7 @@ static void ggtt_bind_vma(struct i915_vma *vma,
 	if (obj->gt_ro)
 		flags |= PTE_READ_ONLY;
 
-	if (i915_is_ggtt(vma->vm))
+	if (vma->is_ggtt)
 		pages = vma->ggtt_view.pages;
 
 	/* If there is no aliasing PPGTT, or the caller needs a global mapping,
@@ -2541,7 +2541,7 @@ __i915_gem_vma_create(struct drm_i915_gem_object *obj,
 {
 	struct i915_vma *vma;
 
-	if (WARN_ON(i915_is_ggtt(vm) != !!ggtt_view))
+	if (WARN_ON(vm->is_ggtt != !!ggtt_view))
 		return ERR_PTR(-EINVAL);
 
 	vma = kmem_cache_zalloc(to_i915(obj->base.dev)->vmas, GFP_KERNEL);
@@ -2553,9 +2553,10 @@ __i915_gem_vma_create(struct drm_i915_gem_object *obj,
 	INIT_LIST_HEAD(&vma->exec_list);
 	vma->vm = vm;
 	vma->obj = obj;
+	vma->is_ggtt = vm->is_ggtt;
 
 	if (INTEL_INFO(vm->dev)->gen >= 6) {
-		if (i915_is_ggtt(vm)) {
+		if (vm->is_ggtt) {
 			vma->ggtt_view = *ggtt_view;
 
 			vma->unbind_vma = ggtt_unbind_vma;
@@ -2565,14 +2566,14 @@ __i915_gem_vma_create(struct drm_i915_gem_object *obj,
 			vma->bind_vma = ppgtt_bind_vma;
 		}
 	} else {
-		BUG_ON(!i915_is_ggtt(vm));
+		BUG_ON(!vm->is_ggtt);
 		vma->ggtt_view = *ggtt_view;
 		vma->unbind_vma = i915_ggtt_unbind_vma;
 		vma->bind_vma = i915_ggtt_bind_vma;
 	}
 
 	list_add_tail(&vma->vma_link, &obj->vma_list);
-	if (!i915_is_ggtt(vm))
+	if (!vm->is_ggtt)
 		i915_ppgtt_get(i915_vm_to_ppgtt(vm));
 
 	return vma;
@@ -2587,7 +2588,7 @@ i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
 	vma = i915_gem_obj_to_vma(obj, vm);
 	if (!vma)
 		vma = __i915_gem_vma_create(obj, vm,
-					    i915_is_ggtt(vm) ? &i915_ggtt_view_normal : NULL);
+					    vm->is_ggtt ? &i915_ggtt_view_normal : NULL);
 
 	return vma;
 }
@@ -2758,7 +2759,7 @@ i915_get_ggtt_vma_pages(struct i915_vma *vma)
 int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
 		  u32 flags)
 {
-	if (i915_is_ggtt(vma->vm)) {
+	if (vma->is_ggtt) {
 		int ret = i915_get_ggtt_vma_pages(vma);
 
 		if (ret)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index db9ec04d312c..4e6cdaba2569 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -160,6 +160,7 @@ struct i915_vma {
 #define LOCAL_BIND	(1<<1)
 #define PTE_READ_ONLY	(1<<2)
 	unsigned int bound : 4;
+	unsigned is_ggtt : 1;
 
 	/**
 	 * Support different GGTT views into the same object.
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 17dc2fcaba10..8832f1b2a495 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -606,7 +606,7 @@ i915_error_object_create(struct drm_i915_private *dev_priv,
 		dst->gtt_offset = -1;
 
 	reloc_offset = dst->gtt_offset;
-	if (i915_is_ggtt(vm))
+	if (vm->is_ggtt)
 		vma = i915_gem_obj_to_ggtt(src);
 	use_ggtt = (src->cache_level == I915_CACHE_NONE &&
 		   vma && (vma->bound & GLOBAL_BIND) &&
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index 97483e21c9b4..ce8ee9e8bced 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -156,35 +156,29 @@ TRACE_EVENT(i915_vma_unbind,
 		      __entry->obj, __entry->offset, __entry->size, __entry->vm)
 );
 
-#define VM_TO_TRACE_NAME(vm) \
-	(i915_is_ggtt(vm) ? "G" : \
-		      "P")
-
 DECLARE_EVENT_CLASS(i915_va,
-	TP_PROTO(struct i915_address_space *vm, u64 start, u64 length, const char *name),
-	TP_ARGS(vm, start, length, name),
+	TP_PROTO(struct i915_address_space *vm, u64 start, u64 length),
+	TP_ARGS(vm, start, length),
 
 	TP_STRUCT__entry(
 		__field(struct i915_address_space *, vm)
 		__field(u64, start)
 		__field(u64, end)
-		__string(name, name)
 	),
 
 	TP_fast_assign(
 		__entry->vm = vm;
 		__entry->start = start;
 		__entry->end = start + length - 1;
-		__assign_str(name, name);
 	),
 
-	TP_printk("vm=%p (%s), 0x%llx-0x%llx",
-		  __entry->vm, __get_str(name),  __entry->start, __entry->end)
+	TP_printk("vm=%p (%c), 0x%llx-0x%llx",
+		  __entry->vm, __entry->vm->is_ggtt ? 'G' : 'P',  __entry->start, __entry->end)
 );
 
 DEFINE_EVENT(i915_va, i915_va_alloc,
-	     TP_PROTO(struct i915_address_space *vm, u64 start, u64 length, const char *name),
-	     TP_ARGS(vm, start, length, name)
+	     TP_PROTO(struct i915_address_space *vm, u64 start, u64 length),
+	     TP_ARGS(vm, start, length)
 );
 
 DECLARE_EVENT_CLASS(i915_page_table_entry,
-- 
2.1.4



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