iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/nouveau: Keep only a single list for validation.

Browse Source 
Maintain the original order to handle VRAM/GART/mixed correctly for <nv50,
it's likely not as important on newer cards.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Maarten Lankhorst 2014-04-09 16:18:58 +02:00
parent 472db7ab30
commit 9242829a87
1 changed files with 34 additions and 62 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

96
drivers/gpu/drm/nouveau/nouveau_gem.c
View File

@ -284,21 +284,17 @@ nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains,
}
struct validate_op {
struct list_head vram_list;
struct list_head gart_list;
struct list_head both_list;
struct list_head list;
struct ww_acquire_ctx ticket;
};
static void
validate_fini_list(struct list_head *list, struct nouveau_fence *fence,
struct ww_acquire_ctx *ticket)
validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence)
{
struct list_head *entry, *tmp;
struct nouveau_bo *nvbo;
list_for_each_safe(entry, tmp, list) {
nvbo = list_entry(entry, struct nouveau_bo, entry);
while (!list_empty(&op->list)) {
nvbo = list_entry(op->list.next, struct nouveau_bo, entry);
if (likely(fence))
nouveau_bo_fence(nvbo, fence);
@ -310,19 +306,11 @@ validate_fini_list(struct list_head *list, struct nouveau_fence *fence,
list_del(&nvbo->entry);
nvbo->reserved_by = NULL;
ttm_bo_unreserve_ticket(&nvbo->bo, ticket);
ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket);
drm_gem_object_unreference_unlocked(&nvbo->gem);
}
}
static void
validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence)
{
validate_fini_list(&op->vram_list, fence, &op->ticket);
validate_fini_list(&op->gart_list, fence, &op->ticket);
validate_fini_list(&op->both_list, fence, &op->ticket);
}
static void
validate_fini(struct validate_op *op, struct nouveau_fence *fence)
{
@ -340,6 +328,9 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
int trycnt = 0;
int ret, i;
struct nouveau_bo *res_bo = NULL;
LIST_HEAD(gart_list);
LIST_HEAD(vram_list);
LIST_HEAD(both_list);
ww_acquire_init(&op->ticket, &reservation_ww_class);
retry:
@ -356,9 +347,8 @@ retry:
gem = drm_gem_object_lookup(dev, file_priv, b->handle);
if (!gem) {
NV_PRINTK(error, cli, "Unknown handle 0x%08x\n", b->handle);
ww_acquire_done(&op->ticket);
validate_fini(op, NULL);
return -ENOENT;
ret = -ENOENT;
break;
}
nvbo = nouveau_gem_object(gem);
if (nvbo == res_bo) {
@ -371,13 +361,15 @@ retry:
NV_PRINTK(error, cli, "multiple instances of buffer %d on "
"validation list\n", b->handle);
drm_gem_object_unreference_unlocked(gem);
ww_acquire_done(&op->ticket);
validate_fini(op, NULL);
return -EINVAL;
ret = -EINVAL;
break;
}
ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket);
if (ret) {
list_splice_tail_init(&vram_list, &op->list);
list_splice_tail_init(&gart_list, &op->list);
list_splice_tail_init(&both_list, &op->list);
validate_fini_no_ticket(op, NULL);
if (unlikely(ret == -EDEADLK)) {
ret = ttm_bo_reserve_slowpath(&nvbo->bo, true,
@ -386,12 +378,9 @@ retry:
res_bo = nvbo;
}
if (unlikely(ret)) {
ww_acquire_done(&op->ticket);
ww_acquire_fini(&op->ticket);
drm_gem_object_unreference_unlocked(gem);
if (ret != -ERESTARTSYS)
NV_PRINTK(error, cli, "fail reserve\n");
return ret;
break;
}
}
@ -400,27 +389,32 @@ retry:
nvbo->pbbo_index = i;
if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) &&
(b->valid_domains & NOUVEAU_GEM_DOMAIN_GART))
list_add_tail(&nvbo->entry, &op->both_list);
list_add_tail(&nvbo->entry, &both_list);
else
if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM)
list_add_tail(&nvbo->entry, &op->vram_list);
list_add_tail(&nvbo->entry, &vram_list);
else
if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)
list_add_tail(&nvbo->entry, &op->gart_list);
list_add_tail(&nvbo->entry, &gart_list);
else {
NV_PRINTK(error, cli, "invalid valid domains: 0x%08x\n",
b->valid_domains);
list_add_tail(&nvbo->entry, &op->both_list);
ww_acquire_done(&op->ticket);
validate_fini(op, NULL);
return -EINVAL;
list_add_tail(&nvbo->entry, &both_list);
ret = -EINVAL;
break;
}
if (nvbo == res_bo)
goto retry;
}
ww_acquire_done(&op->ticket);
return 0;
list_splice_tail(&vram_list, &op->list);
list_splice_tail(&gart_list, &op->list);
list_splice_tail(&both_list, &op->list);
if (ret)
validate_fini(op, NULL);
return ret;
}
static int
@ -492,11 +486,9 @@ nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
struct validate_op *op, int *apply_relocs)
{
struct nouveau_cli *cli = nouveau_cli(file_priv);
int ret, relocs = 0;
int ret;
INIT_LIST_HEAD(&op->vram_list);
INIT_LIST_HEAD(&op->gart_list);
INIT_LIST_HEAD(&op->both_list);
INIT_LIST_HEAD(&op->list);
if (nr_buffers == 0)
return 0;
@ -508,34 +500,14 @@ nouveau_gem_pushbuf_validate(struct nouveau_channel *chan,
return ret;
}
ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers);
ret = validate_list(chan, cli, &op->list, pbbo, user_buffers);
if (unlikely(ret < 0)) {
if (ret != -ERESTARTSYS)
NV_PRINTK(error, cli, "validate vram_list\n");
NV_PRINTK(error, cli, "validating bo list\n");
validate_fini(op, NULL);
return ret;
}
relocs += ret;
ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers);
if (unlikely(ret < 0)) {
if (ret != -ERESTARTSYS)
NV_PRINTK(error, cli, "validate gart_list\n");
validate_fini(op, NULL);
return ret;
}
relocs += ret;
ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers);
if (unlikely(ret < 0)) {
if (ret != -ERESTARTSYS)
NV_PRINTK(error, cli, "validate both_list\n");
validate_fini(op, NULL);
return ret;
}
relocs += ret;
*apply_relocs = relocs;
*apply_relocs = ret;
return 0;
}