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-rw-r--r--linux-core/drmP.h7
-rw-r--r--linux-core/drm_bo.c190
2 files changed, 128 insertions, 69 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 88f4c2cc..aecad251 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -800,9 +800,11 @@ typedef struct drm_buffer_manager{
int use_vram;
int use_tt;
drm_mm_t tt_manager;
- struct list_head tt_lru;
drm_mm_t vram_manager;
+ struct list_head tt_lru;
struct list_head vram_lru;
+ struct list_head tt_pinned;
+ struct list_head vram_pinned;
struct list_head unfenced;
struct list_head ddestroy;
struct list_head other;
@@ -999,7 +1001,8 @@ typedef struct drm_buffer_object{
drm_mm_node_t *vram;
drm_mm_node_t *tt;
- struct list_head head;
+ struct list_head tt_lru;
+ struct list_head vram_lru;
struct list_head ddestroy;
uint32_t fence_type;
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c
index 6a3a5020..d1989e49 100644
--- a/linux-core/drm_bo.c
+++ b/linux-core/drm_bo.c
@@ -120,7 +120,8 @@ static void drm_bo_destroy_locked(drm_device_t * dev, drm_buffer_object_t * bo)
* Take away from lru lists.
*/
- list_del_init(&bo->head);
+ list_del_init(&bo->tt_lru);
+ list_del_init(&bo->vram_lru);
if (bo->tt) {
@@ -155,6 +156,9 @@ static void drm_bo_delayed_delete(drm_device_t * dev)
drm_fence_object_t *fence;
mutex_lock(&dev->struct_mutex);
+ if (!bm->initialized)
+ goto out;
+
list = bm->ddestroy.next;
list_for_each_safe(list, next, &bm->ddestroy) {
entry = list_entry(list, drm_buffer_object_t, ddestroy);
@@ -201,6 +205,7 @@ static void drm_bo_delayed_delete(drm_device_t * dev)
atomic_dec(&nentry->usage);
}
}
+ out:
mutex_unlock(&dev->struct_mutex);
}
@@ -264,13 +269,14 @@ int drm_fence_buffer_objects(drm_file_t * priv,
int count = 0;
int ret = 0;
struct list_head f_list, *l;
+ struct list_head *q;
mutex_lock(&dev->struct_mutex);
if (!list)
list = &bm->unfenced;
- list_for_each_entry(entry, list, head) {
+ list_for_each_entry(entry, list, tt_lru) {
BUG_ON(!(entry->priv_flags & _DRM_BO_FLAG_UNFENCED));
fence_type |= entry->fence_type;
if (entry->fence_class != 0) {
@@ -317,12 +323,13 @@ int drm_fence_buffer_objects(drm_file_t * priv,
count = 0;
l = f_list.next;
while (l != &f_list) {
- entry = list_entry(l, drm_buffer_object_t, head);
+ entry = list_entry(l, drm_buffer_object_t, tt_lru);
atomic_inc(&entry->usage);
mutex_unlock(&dev->struct_mutex);
mutex_lock(&entry->mutex);
mutex_lock(&dev->struct_mutex);
list_del_init(l);
+ list_del_init(&entry->vram_lru);
if (entry->priv_flags & _DRM_BO_FLAG_UNFENCED) {
count++;
if (entry->fence)
@@ -331,15 +338,19 @@ int drm_fence_buffer_objects(drm_file_t * priv,
DRM_FLAG_MASKED(entry->priv_flags, 0,
_DRM_BO_FLAG_UNFENCED);
DRM_WAKEUP(&entry->event_queue);
- if (entry->flags & DRM_BO_FLAG_NO_EVICT)
- list_add_tail(&entry->head, &bm->other);
- else if (entry->flags & DRM_BO_FLAG_MEM_TT)
- list_add_tail(&entry->head, &bm->tt_lru);
- else if (entry->flags & DRM_BO_FLAG_MEM_VRAM)
- list_add_tail(&entry->head, &bm->vram_lru);
- else
- list_add_tail(&entry->head, &bm->other);
- } mutex_unlock(&entry->mutex);
+ if (entry->flags & DRM_BO_FLAG_MEM_TT) {
+ q = (entry->flags & DRM_BO_FLAG_NO_EVICT) ?
+ &bm->tt_pinned : &bm->tt_lru;
+ list_add_tail(&entry->tt_lru, q);
+ } else if (entry->flags & DRM_BO_FLAG_MEM_VRAM) {
+ q = (entry->flags & DRM_BO_FLAG_NO_EVICT) ?
+ &bm->vram_pinned : &bm->vram_lru;
+ list_add_tail(&entry->vram_lru, q);
+ } else {
+ list_add_tail(&entry->tt_lru, &bm->other);
+ }
+ }
+ mutex_unlock(&entry->mutex);
drm_bo_usage_deref_locked(dev, entry);
l = f_list.next;
}
@@ -389,7 +400,7 @@ static int drm_bo_wait(drm_buffer_object_t * bo, int lazy, int ignore_signals,
}
/*
- * No locking required.
+ * bo->mutex locked
*/
static int drm_bo_evict(drm_buffer_object_t * bo, int tt, int no_wait)
@@ -401,16 +412,13 @@ static int drm_bo_evict(drm_buffer_object_t * bo, int tt, int no_wait)
* Someone might have modified the buffer before we took the buffer mutex.
*/
- mutex_lock(&bo->mutex);
- if ((bo->priv_flags & _DRM_BO_FLAG_UNFENCED)
- || (bo->flags & DRM_BO_FLAG_NO_EVICT))
+ if (bo->priv_flags & _DRM_BO_FLAG_UNFENCED)
goto out;
if (tt && !bo->tt)
goto out;
if (!tt && !bo->vram)
goto out;
-
ret = drm_bo_wait(bo, 0, 0, no_wait);
if (ret) {
if (ret != -EAGAIN)
@@ -428,13 +436,13 @@ static int drm_bo_evict(drm_buffer_object_t * bo, int tt, int no_wait)
}
#endif
mutex_lock(&dev->struct_mutex);
- list_del(&bo->head);
- list_add_tail(&bo->head, &bm->other);
+ list_del_init((tt) ? &bo->tt_lru : &bo->vram_lru);
+ if (list_empty((tt) ? &bo->vram_lru : &bo->tt_lru))
+ list_add_tail(&bo->tt_lru, &bm->other);
mutex_unlock(&dev->struct_mutex);
DRM_FLAG_MASKED(bo->priv_flags, _DRM_BO_FLAG_EVICTED,
_DRM_BO_FLAG_EVICTED);
out:
- mutex_unlock(&bo->mutex);
return ret;
}
@@ -463,11 +471,17 @@ int drm_bo_alloc_space(drm_buffer_object_t * buf, int tt, int no_wait)
if (lru->next == lru)
break;
- bo = list_entry(lru->next, drm_buffer_object_t, head);
+ if (tt) {
+ bo = list_entry(lru->next, drm_buffer_object_t, tt_lru);
+ } else {
+ bo = list_entry(lru->next, drm_buffer_object_t, vram_lru);
+ }
atomic_inc(&bo->usage);
mutex_unlock(&dev->struct_mutex);
+ mutex_lock(&bo->mutex);
ret = drm_bo_evict(bo, tt, no_wait);
+ mutex_unlock(&bo->mutex);
drm_bo_usage_deref_unlocked(dev, bo);
if (ret)
return ret;
@@ -714,18 +728,16 @@ static int drm_bo_busy(drm_buffer_object_t * bo)
static int drm_bo_read_cached(drm_buffer_object_t * bo)
{
- drm_device_t *dev = bo->dev;
- drm_buffer_manager_t *bm = &dev->bm;
+ int ret = 0;
BUG_ON(bo->priv_flags & _DRM_BO_FLAG_UNFENCED);
- DRM_FLAG_MASKED(bo->priv_flags, _DRM_BO_FLAG_EVICTED,
- _DRM_BO_FLAG_EVICTED);
-
- mutex_lock(&dev->struct_mutex);
- list_del(&bo->head);
- list_add_tail(&bo->head, &bm->other);
- mutex_unlock(&dev->struct_mutex);
- return drm_move_tt_to_local(bo);
+ if (bo->vram)
+ ret = drm_bo_evict(bo, 0, 1);
+ if (ret)
+ return ret;
+ if (bo->tt)
+ ret = drm_bo_evict(bo, 1, 1);
+ return ret;
}
/*
@@ -1070,20 +1082,28 @@ static int drm_buffer_object_validate(drm_buffer_object_t * bo,
DRM_FLAG_MASKED(bo->priv_flags, _DRM_BO_FLAG_UNFENCED,
_DRM_BO_FLAG_UNFENCED);
mutex_lock(&dev->struct_mutex);
- list_del(&bo->head);
- list_add_tail(&bo->head, &bm->unfenced);
+ list_del(&bo->tt_lru);
+ list_add_tail(&bo->tt_lru, &bm->unfenced);
+ list_del_init(&bo->vram_lru);
mutex_unlock(&dev->struct_mutex);
} else {
+ struct list_head *q;
+
mutex_lock(&dev->struct_mutex);
- list_del(&bo->head);
- if (new_flags & DRM_BO_FLAG_NO_EVICT)
- list_add_tail(&bo->head, &bm->other);
- else if (new_flags & DRM_BO_FLAG_MEM_TT)
- list_add_tail(&bo->head, &bm->tt_lru);
- else if (new_flags & DRM_BO_FLAG_MEM_VRAM)
- list_add_tail(&bo->head, &bm->vram_lru);
- else
- list_add_tail(&bo->head, &bm->other);
+ list_del_init(&bo->tt_lru);
+ list_del_init(&bo->vram_lru);
+
+ if (new_flags & DRM_BO_FLAG_MEM_TT) {
+ q = (new_flags & DRM_BO_FLAG_NO_EVICT) ?
+ &bm->tt_pinned : &bm->tt_lru;
+ list_add_tail(&bo->tt_lru, q);
+ } else if (new_flags & DRM_BO_FLAG_MEM_VRAM) {
+ q = (new_flags & DRM_BO_FLAG_NO_EVICT) ?
+ &bm->vram_pinned : &bm->vram_lru;
+ list_add_tail(&bo->vram_lru, q);
+ } else {
+ list_add_tail(&bo->tt_lru, &bm->other);
+ }
mutex_unlock(&dev->struct_mutex);
DRM_FLAG_MASKED(bo->flags, new_flags, DRM_BO_FLAG_NO_EVICT);
}
@@ -1277,9 +1297,10 @@ int drm_buffer_object_create(drm_file_t * priv,
atomic_set(&bo->usage, 1);
atomic_set(&bo->mapped, -1);
DRM_INIT_WAITQUEUE(&bo->event_queue);
- INIT_LIST_HEAD(&bo->head);
- list_add_tail(&bo->head, &bm->other);
+ INIT_LIST_HEAD(&bo->tt_lru);
+ INIT_LIST_HEAD(&bo->vram_lru);
INIT_LIST_HEAD(&bo->ddestroy);
+ list_add_tail(&bo->tt_lru, &bm->other);
bo->dev = dev;
bo->type = type;
bo->num_pages = num_pages;
@@ -1484,43 +1505,67 @@ int drm_bo_ioctl(DRM_IOCTL_ARGS)
* dev->struct_sem locked.
*/
-static void drm_bo_force_clean(drm_device_t * dev)
+static void drm_bo_force_list_clean(drm_device_t *dev,
+ struct list_head *head, int tt)
{
- drm_buffer_manager_t *bm = &dev->bm;
struct list_head *l;
drm_buffer_object_t *entry;
int nice_mode = 1;
- int ret = 0;
+ int ret;
+
+ l = head->next;
+ while (l != head) {
+ if (tt) {
+ entry = list_entry(l, drm_buffer_object_t,
+ tt_lru);
+ } else {
+ entry = list_entry(l, drm_buffer_object_t,
+ vram_lru);
+ }
+
+ atomic_inc(&entry->usage);
+ mutex_unlock(&dev->struct_mutex);
+ mutex_lock(&entry->mutex);
+
+ /*
+ * Expire the fence.
+ */
- l = bm->ddestroy.next;
- while (l != &bm->ddestroy) {
- entry = list_entry(l, drm_buffer_object_t, ddestroy);
- list_del(l);
if (entry->fence) {
if (nice_mode) {
- unsigned long _end = jiffies + 3 * DRM_HZ;
+ unsigned long _end = jiffies + 3*DRM_HZ;
do {
- mutex_unlock(&dev->struct_mutex);
ret = drm_bo_wait(entry, 0, 1, 0);
- mutex_lock(&dev->struct_mutex);
- } while ((ret == -EINTR) &&
- !time_after_eq(jiffies, _end));
- } else {
- drm_fence_usage_deref_locked(dev, entry->fence);
- entry->fence = NULL;
+ } while (ret && !time_after_eq(jiffies, _end));
+
+ if (entry->fence) {
+ nice_mode = 0;
+ DRM_ERROR("Detected GPU hang. "
+ "Evicting waiting buffers\n");
+ }
}
if (entry->fence) {
- DRM_ERROR("Detected GPU hang. "
- "Removing waiting buffers.\n");
- nice_mode = 0;
- drm_fence_usage_deref_locked(dev, entry->fence);
+ drm_fence_usage_deref_unlocked(dev, entry->fence);
entry->fence = NULL;
}
+ }
+ ret = drm_bo_evict(entry, tt, 0);
+ if (ret) {
+ DRM_ERROR("Aargh. Eviction failed.\n");
+ }
+ mutex_unlock(&entry->mutex);
+ mutex_lock(&dev->struct_mutex);
+ if (!list_empty(l)) {
+ list_del_init(l);
+ if (list_empty(&entry->tt_lru) &&
+ list_empty(&entry->vram_lru)) {
+ list_add_tail(l, &dev->bm.other);
+ }
}
- DRM_DEBUG("Destroying delayed buffer object\n");
- drm_bo_destroy_locked(dev, entry);
- l = bm->ddestroy.next;
+
+ drm_bo_usage_deref_locked(dev, entry);
+ l = head->next;
}
}
@@ -1534,10 +1579,18 @@ int drm_bo_clean_mm(drm_device_t * dev)
if (!bm->initialized)
goto out;
- drm_bo_force_clean(dev);
bm->use_vram = 0;
bm->use_tt = 0;
+ /*
+ * FIXME: Need to handle unfenced list.
+ */
+
+ drm_bo_force_list_clean(dev, &bm->tt_lru, 1);
+ drm_bo_force_list_clean(dev, &bm->tt_pinned, 1);
+ drm_bo_force_list_clean(dev, &bm->vram_lru, 1);
+ drm_bo_force_list_clean(dev, &bm->vram_pinned, 1);
+
if (bm->has_vram) {
if (drm_mm_clean(&bm->vram_manager)) {
drm_mm_takedown(&bm->vram_manager);
@@ -1620,6 +1673,8 @@ int drm_mm_init_ioctl(DRM_IOCTL_ARGS)
INIT_LIST_HEAD(&bm->vram_lru);
INIT_LIST_HEAD(&bm->tt_lru);
+ INIT_LIST_HEAD(&bm->vram_pinned);
+ INIT_LIST_HEAD(&bm->tt_pinned);
INIT_LIST_HEAD(&bm->unfenced);
INIT_LIST_HEAD(&bm->ddestroy);
INIT_LIST_HEAD(&bm->other);
@@ -1631,6 +1686,7 @@ int drm_mm_init_ioctl(DRM_IOCTL_ARGS)
bm->max_pages = arg.req.max_locked_pages;
break;
case mm_takedown:
+ LOCK_TEST_WITH_RETURN(dev, filp);
if (drm_bo_clean_mm(dev)) {
DRM_ERROR("Memory manager not clean. "
"Delaying takedown\n");
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 06:18:37 +0000