*/
#include "qxl_drv.h"
#include "qxl_object.h"
+#include <trace/events/fence.h>
/*
* drawable cmd cache - allocate a bunch of VRAM pages, suballocate
static const int release_size_per_bo[] = { RELEASE_SIZE, SURFACE_RELEASE_SIZE, RELEASE_SIZE };
static const int releases_per_bo[] = { RELEASES_PER_BO, SURFACE_RELEASES_PER_BO, RELEASES_PER_BO };
+static const char *qxl_get_driver_name(struct fence *fence)
+{
+ return "qxl";
+}
+
+static const char *qxl_get_timeline_name(struct fence *fence)
+{
+ return "release";
+}
+
+static bool qxl_nop_signaling(struct fence *fence)
+{
+ /* fences are always automatically signaled, so just pretend we did this.. */
+ return true;
+}
+
+static long qxl_fence_wait(struct fence *fence, bool intr, signed long timeout)
+{
+ struct qxl_device *qdev;
+ struct qxl_release *release;
+ int count = 0, sc = 0;
+ bool have_drawable_releases;
+ unsigned long cur, end = jiffies + timeout;
+
+ qdev = container_of(fence->lock, struct qxl_device, release_lock);
+ release = container_of(fence, struct qxl_release, base);
+ have_drawable_releases = release->type == QXL_RELEASE_DRAWABLE;
+
+retry:
+ sc++;
+
+ if (fence_is_signaled(fence))
+ goto signaled;
+
+ qxl_io_notify_oom(qdev);
+
+ for (count = 0; count < 11; count++) {
+ if (!qxl_queue_garbage_collect(qdev, true))
+ break;
+
+ if (fence_is_signaled(fence))
+ goto signaled;
+ }
+
+ if (fence_is_signaled(fence))
+ goto signaled;
+
+ if (have_drawable_releases || sc < 4) {
+ if (sc > 2)
+ /* back off */
+ usleep_range(500, 1000);
+
+ if (time_after(jiffies, end))
+ return 0;
+
+ if (have_drawable_releases && sc > 300) {
+ FENCE_WARN(fence, "failed to wait on release %d "
+ "after spincount %d\n",
+ fence->context & ~0xf0000000, sc);
+ goto signaled;
+ }
+ goto retry;
+ }
+ /*
+ * yeah, original sync_obj_wait gave up after 3 spins when
+ * have_drawable_releases is not set.
+ */
+
+signaled:
+ cur = jiffies;
+ if (time_after(cur, end))
+ return 0;
+ return end - cur;
+}
+
+static const struct fence_ops qxl_fence_ops = {
+ .get_driver_name = qxl_get_driver_name,
+ .get_timeline_name = qxl_get_timeline_name,
+ .enable_signaling = qxl_nop_signaling,
+ .wait = qxl_fence_wait,
+};
+
static uint64_t
qxl_release_alloc(struct qxl_device *qdev, int type,
struct qxl_release **ret)
struct qxl_release *release;
int handle;
size_t size = sizeof(*release);
- int idr_ret;
release = kmalloc(size, GFP_KERNEL);
if (!release) {
DRM_ERROR("Out of memory\n");
return 0;
}
+ release->base.ops = NULL;
release->type = type;
release->release_offset = 0;
release->surface_release_id = 0;
idr_preload(GFP_KERNEL);
spin_lock(&qdev->release_idr_lock);
- idr_ret = idr_alloc(&qdev->release_idr, release, 1, 0, GFP_NOWAIT);
+ handle = idr_alloc(&qdev->release_idr, release, 1, 0, GFP_NOWAIT);
+ release->base.seqno = ++qdev->release_seqno;
spin_unlock(&qdev->release_idr_lock);
idr_preload_end();
- handle = idr_ret;
- if (idr_ret < 0)
- goto release_fail;
+ if (handle < 0) {
+ kfree(release);
+ *ret = NULL;
+ return handle;
+ }
*ret = release;
QXL_INFO(qdev, "allocated release %lld\n", handle);
release->id = handle;
-release_fail:
-
return handle;
}
+static void
+qxl_release_free_list(struct qxl_release *release)
+{
+ while (!list_empty(&release->bos)) {
+ struct qxl_bo_list *entry;
+ struct qxl_bo *bo;
+
+ entry = container_of(release->bos.next,
+ struct qxl_bo_list, tv.head);
+ bo = to_qxl_bo(entry->tv.bo);
+ qxl_bo_unref(&bo);
+ list_del(&entry->tv.head);
+ kfree(entry);
+ }
+}
+
void
qxl_release_free(struct qxl_device *qdev,
struct qxl_release *release)
{
- struct qxl_bo_list *entry, *tmp;
QXL_INFO(qdev, "release %d, type %d\n", release->id,
release->type);
if (release->surface_release_id)
qxl_surface_id_dealloc(qdev, release->surface_release_id);
- list_for_each_entry_safe(entry, tmp, &release->bos, tv.head) {
- struct qxl_bo *bo = to_qxl_bo(entry->tv.bo);
- QXL_INFO(qdev, "release %llx\n",
- drm_vma_node_offset_addr(&entry->tv.bo->vma_node)
- - DRM_FILE_OFFSET);
- qxl_fence_remove_release(&bo->fence, release->id);
- qxl_bo_unref(&bo);
- kfree(entry);
- }
spin_lock(&qdev->release_idr_lock);
idr_remove(&qdev->release_idr, release->id);
spin_unlock(&qdev->release_idr_lock);
- kfree(release);
+
+ if (release->base.ops) {
+ WARN_ON(list_empty(&release->bos));
+ qxl_release_free_list(release);
+
+ fence_signal(&release->base);
+ fence_put(&release->base);
+ } else {
+ qxl_release_free_list(release);
+ kfree(release);
+ }
}
static int qxl_release_bo_alloc(struct qxl_device *qdev,
qxl_bo_ref(bo);
entry->tv.bo = &bo->tbo;
+ entry->tv.shared = false;
list_add_tail(&entry->tv.head, &release->bos);
return 0;
}
return ret;
}
+ ret = reservation_object_reserve_shared(bo->tbo.resv);
+ if (ret)
+ return ret;
+
/* allocate a surface for reserved + validated buffers */
ret = qxl_bo_check_id(bo->gem_base.dev->dev_private, bo);
if (ret)
if (list_is_singular(&release->bos))
return 0;
- ret = ttm_eu_reserve_buffers(&release->ticket, &release->bos);
+ ret = ttm_eu_reserve_buffers(&release->ticket, &release->bos,
+ !no_intr, NULL);
if (ret)
return ret;
/* stash the release after the create command */
idr_ret = qxl_release_alloc(qdev, QXL_RELEASE_SURFACE_CMD, release);
+ if (idr_ret < 0)
+ return idr_ret;
bo = qxl_bo_ref(to_qxl_bo(entry->tv.bo));
(*release)->release_offset = create_rel->release_offset + 64;
}
idr_ret = qxl_release_alloc(qdev, type, release);
+ if (idr_ret < 0) {
+ if (rbo)
+ *rbo = NULL;
+ return idr_ret;
+ }
mutex_lock(&qdev->release_mutex);
if (qdev->current_release_bo_offset[cur_idx] + 1 >= releases_per_bo[cur_idx]) {
void qxl_release_fence_buffer_objects(struct qxl_release *release)
{
- struct ttm_validate_buffer *entry;
struct ttm_buffer_object *bo;
struct ttm_bo_global *glob;
struct ttm_bo_device *bdev;
struct ttm_bo_driver *driver;
struct qxl_bo *qbo;
+ struct ttm_validate_buffer *entry;
+ struct qxl_device *qdev;
/* if only one object on the release its the release itself
since these objects are pinned no need to reserve */
- if (list_is_singular(&release->bos))
+ if (list_is_singular(&release->bos) || list_empty(&release->bos))
return;
bo = list_first_entry(&release->bos, struct ttm_validate_buffer, head)->bo;
bdev = bo->bdev;
+ qdev = container_of(bdev, struct qxl_device, mman.bdev);
+
+ /*
+ * Since we never really allocated a context and we don't want to conflict,
+ * set the highest bits. This will break if we really allow exporting of dma-bufs.
+ */
+ fence_init(&release->base, &qxl_fence_ops, &qdev->release_lock,
+ release->id | 0xf0000000, release->base.seqno);
+ trace_fence_emit(&release->base);
+
driver = bdev->driver;
glob = bo->glob;
spin_lock(&glob->lru_lock);
- spin_lock(&bdev->fence_lock);
list_for_each_entry(entry, &release->bos, head) {
bo = entry->bo;
qbo = to_qxl_bo(bo);
- if (!entry->bo->sync_obj)
- entry->bo->sync_obj = &qbo->fence;
-
- qxl_fence_add_release_locked(&qbo->fence, release->id);
-
+ reservation_object_add_shared_fence(bo->resv, &release->base);
ttm_bo_add_to_lru(bo);
__ttm_bo_unreserve(bo);
- entry->reserved = false;
}
- spin_unlock(&bdev->fence_lock);
spin_unlock(&glob->lru_lock);
ww_acquire_fini(&release->ticket);
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff