drm/i915: mm_list is per VMA
formerly: "drm/i915: Create VMAs (part 5) - move mm_list"
The mm_list is used for the active/inactive LRUs. Since those LRUs are
per address space, the link should be per VMx .
Because we'll only ever have 1 VMA before this point, it's not incorrect
to defer this change until this point in the patch series, and doing it
here makes the change much easier to understand.
Shamelessly manipulated out of Daniel:
"active/inactive stuff is used by eviction when we run out of address
space, so needs to be per-vma and per-address space. Bound/unbound otoh
is used by the shrinker which only cares about the amount of memory used
and not one bit about in which address space this memory is all used in.
Of course to actual kick out an object we need to unbind it from every
address space, but for that we have the per-object list of vmas."
v2: only bump GGTT LRU in i915_gem_object_set_to_gtt_domain (Chris)
v3: Moved earlier in the series
v4: Add dropped message from v3
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Frob patch to apply and use vma->node.size directly as
discused with Ben. Also drop a needles BUG_ON before move_to_inactive,
the function itself has the same check.]
[danvet 2nd: Rebase on top of the lost "drm/i915: Cleanup more of VMA
in destroy", specifically unlink the vma from the mm_list in
vma_unbind (to keep it symmetric with bind_to_vm) instead of
vma_destroy.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 5d52a23..a1f4c91 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -149,7 +149,7 @@
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_address_space *vm = &dev_priv->gtt.base;
- struct drm_i915_gem_object *obj;
+ struct i915_vma *vma;
size_t total_obj_size, total_gtt_size;
int count, ret;
@@ -157,6 +157,7 @@
if (ret)
return ret;
+ /* FIXME: the user of this interface might want more than just GGTT */
switch (list) {
case ACTIVE_LIST:
seq_puts(m, "Active:\n");
@@ -172,12 +173,12 @@
}
total_obj_size = total_gtt_size = count = 0;
- list_for_each_entry(obj, head, mm_list) {
- seq_puts(m, " ");
- describe_obj(m, obj);
- seq_putc(m, '\n');
- total_obj_size += obj->base.size;
- total_gtt_size += i915_gem_obj_ggtt_size(obj);
+ list_for_each_entry(vma, head, mm_list) {
+ seq_printf(m, " ");
+ describe_obj(m, vma->obj);
+ seq_printf(m, "\n");
+ total_obj_size += vma->obj->base.size;
+ total_gtt_size += vma->node.size;
count++;
}
mutex_unlock(&dev->struct_mutex);
@@ -224,7 +225,18 @@
return 0;
}
-static int i915_gem_object_info(struct seq_file *m, void *data)
+#define count_vmas(list, member) do { \
+ list_for_each_entry(vma, list, member) { \
+ size += i915_gem_obj_ggtt_size(vma->obj); \
+ ++count; \
+ if (vma->obj->map_and_fenceable) { \
+ mappable_size += i915_gem_obj_ggtt_size(vma->obj); \
+ ++mappable_count; \
+ } \
+ } \
+} while (0)
+
+static int i915_gem_object_info(struct seq_file *m, void* data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
@@ -234,6 +246,7 @@
struct drm_i915_gem_object *obj;
struct i915_address_space *vm = &dev_priv->gtt.base;
struct drm_file *file;
+ struct i915_vma *vma;
int ret;
ret = mutex_lock_interruptible(&dev->struct_mutex);
@@ -250,12 +263,12 @@
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
- count_objects(&vm->active_list, mm_list);
+ count_vmas(&vm->active_list, mm_list);
seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n",
count, mappable_count, size, mappable_size);
size = count = mappable_size = mappable_count = 0;
- count_objects(&vm->inactive_list, mm_list);
+ count_vmas(&vm->inactive_list, mm_list);
seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n",
count, mappable_count, size, mappable_size);
@@ -1774,7 +1787,8 @@
struct drm_device *dev = data;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_gem_object *obj, *next;
- struct i915_address_space *vm = &dev_priv->gtt.base;
+ struct i915_address_space *vm;
+ struct i915_vma *vma, *x;
int ret;
DRM_DEBUG_DRIVER("Dropping caches: 0x%08llx\n", val);
@@ -1795,14 +1809,16 @@
i915_gem_retire_requests(dev);
if (val & DROP_BOUND) {
- list_for_each_entry_safe(obj, next, &vm->inactive_list,
- mm_list) {
- if (obj->pin_count)
- continue;
+ list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
+ list_for_each_entry_safe(vma, x, &vm->inactive_list,
+ mm_list) {
+ if (vma->obj->pin_count)
+ continue;
- ret = i915_gem_object_ggtt_unbind(obj);
- if (ret)
- goto unlock;
+ ret = i915_vma_unbind(vma);
+ if (ret)
+ goto unlock;
+ }
}
}
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index cb4521d..20becc5 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -558,6 +558,9 @@
struct drm_i915_gem_object *obj;
struct i915_address_space *vm;
+ /** This object's place on the active/inactive lists */
+ struct list_head mm_list;
+
struct list_head vma_link; /* Link in the object's VMA list */
};
@@ -1299,9 +1302,7 @@
struct drm_mm_node *stolen;
struct list_head global_list;
- /** This object's place on the active/inactive lists */
struct list_head ring_list;
- struct list_head mm_list;
/** This object's place in the batchbuffer or on the eviction list */
struct list_head exec_list;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 5eacc49..985a130 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1886,7 +1886,6 @@
{
struct drm_device *dev = obj->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct i915_address_space *vm = &dev_priv->gtt.base;
u32 seqno = intel_ring_get_seqno(ring);
BUG_ON(ring == NULL);
@@ -1902,8 +1901,6 @@
obj->active = 1;
}
- /* Move from whatever list we were on to the tail of execution. */
- list_move_tail(&obj->mm_list, &vm->active_list);
list_move_tail(&obj->ring_list, &ring->active_list);
obj->last_read_seqno = seqno;
@@ -1925,14 +1922,14 @@
static void
i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj)
{
- struct drm_device *dev = obj->base.dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct i915_address_space *vm = &dev_priv->gtt.base;
+ struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
+ struct i915_address_space *ggtt_vm = &dev_priv->gtt.base;
+ struct i915_vma *vma = i915_gem_obj_to_vma(obj, ggtt_vm);
BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS);
BUG_ON(!obj->active);
- list_move_tail(&obj->mm_list, &vm->inactive_list);
+ list_move_tail(&vma->mm_list, &ggtt_vm->inactive_list);
list_del_init(&obj->ring_list);
obj->ring = NULL;
@@ -2640,7 +2637,7 @@
i915_gem_gtt_finish_object(obj);
i915_gem_object_unpin_pages(obj);
- list_del(&obj->mm_list);
+ list_del(&vma->mm_list);
/* Avoid an unnecessary call to unbind on rebind. */
if (i915_is_ggtt(vma->vm))
obj->map_and_fenceable = true;
@@ -3187,7 +3184,7 @@
goto err_remove_node;
list_move_tail(&obj->global_list, &dev_priv->mm.bound_list);
- list_add_tail(&obj->mm_list, &vm->inactive_list);
+ list_add_tail(&vma->mm_list, &vm->inactive_list);
/* Keep GGTT vmas first to make debug easier */
if (i915_is_ggtt(vm))
@@ -3352,9 +3349,14 @@
old_write_domain);
/* And bump the LRU for this access */
- if (i915_gem_object_is_inactive(obj))
- list_move_tail(&obj->mm_list,
- &dev_priv->gtt.base.inactive_list);
+ if (i915_gem_object_is_inactive(obj)) {
+ struct i915_vma *vma = i915_gem_obj_to_vma(obj,
+ &dev_priv->gtt.base);
+ if (vma)
+ list_move_tail(&vma->mm_list,
+ &dev_priv->gtt.base.inactive_list);
+
+ }
return 0;
}
@@ -3927,7 +3929,6 @@
void i915_gem_object_init(struct drm_i915_gem_object *obj,
const struct drm_i915_gem_object_ops *ops)
{
- INIT_LIST_HEAD(&obj->mm_list);
INIT_LIST_HEAD(&obj->global_list);
INIT_LIST_HEAD(&obj->ring_list);
INIT_LIST_HEAD(&obj->exec_list);
@@ -4069,6 +4070,7 @@
return ERR_PTR(-ENOMEM);
INIT_LIST_HEAD(&vma->vma_link);
+ INIT_LIST_HEAD(&vma->mm_list);
vma->vm = vm;
vma->obj = obj;
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 7273a72..403309c 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -436,7 +436,10 @@
* MI_SET_CONTEXT instead of when the next seqno has completed.
*/
if (from != NULL) {
+ struct drm_i915_private *dev_priv = from->obj->base.dev->dev_private;
+ struct i915_address_space *ggtt = &dev_priv->gtt.base;
from->obj->base.read_domains = I915_GEM_DOMAIN_INSTRUCTION;
+ list_move_tail(&i915_gem_obj_to_vma(from->obj, ggtt)->mm_list, &ggtt->active_list);
i915_gem_object_move_to_active(from->obj, ring);
/* As long as MI_SET_CONTEXT is serializing, ie. it flushes the
* whole damn pipeline, we don't need to explicitly mark the
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index 61bf5e2..425939b 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -87,8 +87,7 @@
drm_mm_init_scan(&vm->mm, min_size, alignment, cache_level);
/* First see if there is a large enough contiguous idle region... */
- list_for_each_entry(obj, &vm->inactive_list, mm_list) {
- struct i915_vma *vma = i915_gem_obj_to_vma(obj, vm);
+ list_for_each_entry(vma, &vm->inactive_list, mm_list) {
if (mark_free(vma, &unwind_list))
goto found;
}
@@ -97,8 +96,7 @@
goto none;
/* Now merge in the soon-to-be-expired objects... */
- list_for_each_entry(obj, &vm->active_list, mm_list) {
- struct i915_vma *vma = i915_gem_obj_to_vma(obj, vm);
+ list_for_each_entry(vma, &vm->active_list, mm_list) {
if (mark_free(vma, &unwind_list))
goto found;
}
@@ -159,7 +157,7 @@
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct i915_address_space *vm;
- struct drm_i915_gem_object *obj, *next;
+ struct i915_vma *vma, *next;
bool lists_empty = true;
int ret;
@@ -187,9 +185,9 @@
/* Having flushed everything, unbind() should never raise an error */
list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
- list_for_each_entry_safe(obj, next, &vm->inactive_list, mm_list)
- if (obj->pin_count == 0)
- WARN_ON(i915_vma_unbind(i915_gem_obj_to_vma(obj, vm)));
+ list_for_each_entry_safe(vma, next, &vm->inactive_list, mm_list)
+ if (vma->obj->pin_count == 0)
+ WARN_ON(i915_vma_unbind(vma));
}
return 0;
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index aa3fa94..8ccc29ac9 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -801,6 +801,8 @@
obj->base.read_domains = obj->base.pending_read_domains;
obj->fenced_gpu_access = obj->pending_fenced_gpu_access;
+ /* FIXME: This lookup gets fixed later <-- danvet */
+ list_move_tail(&i915_gem_obj_to_vma(obj, vm)->mm_list, &vm->active_list);
i915_gem_object_move_to_active(obj, ring);
if (obj->base.write_domain) {
obj->dirty = 1;
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 9348408..e68c4b5 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -401,7 +401,7 @@
obj->has_global_gtt_mapping = 1;
list_add_tail(&obj->global_list, &dev_priv->mm.bound_list);
- list_add_tail(&obj->mm_list, &ggtt->inactive_list);
+ list_add_tail(&vma->mm_list, &ggtt->inactive_list);
return obj;
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 8091485..fad48b2 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -556,11 +556,11 @@
static u32 capture_active_bo(struct drm_i915_error_buffer *err,
int count, struct list_head *head)
{
- struct drm_i915_gem_object *obj;
+ struct i915_vma *vma;
int i = 0;
- list_for_each_entry(obj, head, mm_list) {
- capture_bo(err++, obj);
+ list_for_each_entry(vma, head, mm_list) {
+ capture_bo(err++, vma->obj);
if (++i == count)
break;
}
@@ -622,7 +622,8 @@
i915_error_first_batchbuffer(struct drm_i915_private *dev_priv,
struct intel_ring_buffer *ring)
{
- struct i915_address_space *vm = &dev_priv->gtt.base;
+ struct i915_address_space *vm;
+ struct i915_vma *vma;
struct drm_i915_gem_object *obj;
u32 seqno;
@@ -642,20 +643,23 @@
}
seqno = ring->get_seqno(ring, false);
- list_for_each_entry(obj, &vm->active_list, mm_list) {
- if (obj->ring != ring)
- continue;
+ list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
+ list_for_each_entry(vma, &vm->active_list, mm_list) {
+ obj = vma->obj;
+ if (obj->ring != ring)
+ continue;
- if (i915_seqno_passed(seqno, obj->last_read_seqno))
- continue;
+ if (i915_seqno_passed(seqno, obj->last_read_seqno))
+ continue;
- if ((obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) == 0)
- continue;
+ if ((obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) == 0)
+ continue;
- /* We need to copy these to an anonymous buffer as the simplest
- * method to avoid being overwritten by userspace.
- */
- return i915_error_object_create(dev_priv, obj);
+ /* We need to copy these to an anonymous buffer as the simplest
+ * method to avoid being overwritten by userspace.
+ */
+ return i915_error_object_create(dev_priv, obj);
+ }
}
return NULL;
@@ -775,11 +779,12 @@
struct drm_i915_error_state *error)
{
struct i915_address_space *vm = &dev_priv->gtt.base;
+ struct i915_vma *vma;
struct drm_i915_gem_object *obj;
int i;
i = 0;
- list_for_each_entry(obj, &vm->active_list, mm_list)
+ list_for_each_entry(vma, &vm->active_list, mm_list)
i++;
error->active_bo_count = i;
list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list)