void
nouveau_gem_object_del(struct drm_gem_object *gem)
{
struct nouveau_bo *nvbo = nouveau_gem_object(gem);
struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
struct ttm_buffer_object *bo = &nvbo->bo;
struct device *dev = drm->dev->dev;
int ret;
ret = pm_runtime_get_sync(dev);
if (WARN_ON(ret < 0 && ret != -EACCES))
return;
if (gem->import_attach)
drm_prime_gem_destroy(gem, nvbo->bo.sg);
drm_gem_object_release(gem);
/* reset filp so nouveau_bo_del_ttm() can test for it */
gem->filp = NULL;
ttm_bo_unref(&bo);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
static void
ttm_bo_vm_dtor(void *handle)
{
struct ttm_buffer_object *bo = handle;
ttm_bo_unref(&bo);
}
static void bochs_bo_unref(struct bochs_bo **bo)
{
struct ttm_buffer_object *tbo;
if ((*bo) == NULL)
return;
tbo = &((*bo)->bo);
ttm_bo_unref(&tbo);
*bo = NULL;
}
void radeon_bo_unref(struct radeon_bo **bo)
{
struct ttm_buffer_object *tbo;
if ((*bo) == NULL)
return;
tbo = &((*bo)->tbo);
ttm_bo_unref(&tbo);
if (tbo == NULL)
*bo = NULL;
}
static void psb_unreference_buffers(struct psb_context *context)
{
struct ttm_validate_buffer *entry, *next;
struct psb_validate_buffer *vbuf;
struct list_head *list = &context->validate_list;
list_for_each_entry_safe(entry, next, list, head) {
vbuf =
container_of(entry, struct psb_validate_buffer, base);
list_del(&entry->head);
ttm_bo_unref(&entry->bo);
}
void mgag200_bo_unref(struct mgag200_bo **bo)
{
struct ttm_buffer_object *tbo;
if ((*bo) == NULL)
return;
tbo = &((*bo)->bo);
ttm_bo_unref(&tbo);
if (tbo == NULL)
*bo = NULL;
}
void qxl_gem_object_free(struct drm_gem_object *gobj)
{
struct qxl_bo *qobj = gem_to_qxl_bo(gobj);
struct qxl_device *qdev;
struct ttm_buffer_object *tbo;
qdev = (struct qxl_device *)gobj->dev->dev_private;
qxl_surface_evict(qdev, qobj, false);
tbo = &qobj->tbo;
ttm_bo_unref(&tbo);
}
/**
* Free the backing store.
*/
static void vmw_sou_backing_free(struct vmw_private *dev_priv,
struct vmw_screen_object_unit *sou)
{
struct ttm_buffer_object *bo;
if (unlikely(sou->buffer == NULL))
return;
bo = &sou->buffer->base;
ttm_bo_unref(&bo);
sou->buffer = NULL;
sou->buffer_size = 0;
}
int vsp_deinit(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
struct vsp_private *vsp_priv = dev_priv->vsp_private;
VSP_DEBUG("free VSP firmware/context buffer\n");
if (vsp_priv->cmd_queue) {
ttm_bo_kunmap(&vsp_priv->cmd_kmap);
vsp_priv->cmd_queue = NULL;
}
if (vsp_priv->ack_queue) {
ttm_bo_kunmap(&vsp_priv->ack_kmap);
vsp_priv->ack_queue = NULL;
}
if (vsp_priv->setting) {
ttm_bo_kunmap(&vsp_priv->setting_kmap);
vsp_priv->setting = NULL;
}
if (vsp_priv->ack_queue_bo)
ttm_bo_unref(&vsp_priv->ack_queue_bo);
if (vsp_priv->cmd_queue_bo)
ttm_bo_unref(&vsp_priv->cmd_queue_bo);
if (vsp_priv->setting_bo)
ttm_bo_unref(&vsp_priv->setting_bo);
device_remove_file(&dev->pdev->dev, &dev_attr_vsp_pmstate);
sysfs_put(vsp_priv->sysfs_pmstate);
VSP_DEBUG("free VSP private structure\n");
kfree(dev_priv->vsp_private);
return 0;
}
void radeon_bo_unref(struct radeon_bo **bo)
{
struct ttm_buffer_object *tbo;
struct radeon_device *rdev;
if ((*bo) == NULL)
return;
rdev = (*bo)->rdev;
tbo = &((*bo)->tbo);
mutex_lock(&rdev->vram_mutex);
ttm_bo_unref(&tbo);
mutex_unlock(&rdev->vram_mutex);
if (tbo == NULL)
*bo = NULL;
}
void
nouveau_gem_object_del(struct drm_gem_object *gem)
{
struct nouveau_bo *nvbo = nouveau_gem_object(gem);
struct ttm_buffer_object *bo = &nvbo->bo;
if (gem->import_attach)
drm_prime_gem_destroy(gem, nvbo->bo.sg);
drm_gem_object_release(gem);
/* reset filp so nouveau_bo_del_ttm() can test for it */
gem->filp = NULL;
ttm_bo_unref(&bo);
}
static void ttm_bo_user_release(struct ttm_base_object **p_base)
{
struct ttm_bo_user_object *user_bo;
struct ttm_base_object *base = *p_base;
struct ttm_buffer_object *bo;
*p_base = NULL;
if (unlikely(base == NULL))
return;
user_bo = container_of(base, struct ttm_bo_user_object, base);
bo = &user_bo->bo;
ttm_bo_unref(&bo);
}
int
ttm_bo_mmap_single(struct ttm_bo_device *bdev, vm_ooffset_t *offset, vm_size_t size,
struct vm_object **obj_res, int nprot)
{
struct ttm_bo_driver *driver;
struct ttm_buffer_object *bo;
struct vm_object *vm_obj;
int ret;
*obj_res = NULL;
lockmgr(&bdev->vm_lock, LK_EXCLUSIVE);
bo = ttm_bo_vm_lookup_rb(bdev, OFF_TO_IDX(*offset), OFF_TO_IDX(size));
if (likely(bo != NULL))
kref_get(&bo->kref);
lockmgr(&bdev->vm_lock, LK_RELEASE);
if (unlikely(bo == NULL)) {
kprintf("[TTM] Could not find buffer object to map\n");
return (EINVAL);
}
driver = bo->bdev->driver;
if (unlikely(!driver->verify_access)) {
ret = EPERM;
goto out_unref;
}
ret = -driver->verify_access(bo);
if (unlikely(ret != 0))
goto out_unref;
vm_obj = cdev_pager_allocate(bo, OBJT_MGTDEVICE, &ttm_pager_ops,
size, nprot, 0, curthread->td_ucred);
if (vm_obj == NULL) {
ret = EINVAL;
goto out_unref;
}
/*
* Note: We're transferring the bo reference to vm_obj->handle here.
*/
*offset = 0;
*obj_res = vm_obj;
return 0;
out_unref:
ttm_bo_unref(&bo);
return ret;
}
void
nouveau_gem_object_del(struct drm_gem_object *gem)
{
struct nouveau_bo *nvbo = gem->driver_private;
struct ttm_buffer_object *bo = &nvbo->bo;
if (!nvbo)
return;
nvbo->gem = NULL;
if (unlikely(nvbo->pin_refcnt)) {
nvbo->pin_refcnt = 1;
nouveau_bo_unpin(nvbo);
}
ttm_bo_unref(&bo);
drm_gem_object_release(gem);
kfree(gem);
}
void
nouveau_gem_object_del(struct drm_gem_object *gem)
{
struct nouveau_bo *nvbo = nouveau_gem_object(gem);
struct ttm_buffer_object *bo = &nvbo->bo;
#ifndef __NetBSD__ /* XXX drm prime */
if (gem->import_attach)
drm_prime_gem_destroy(gem, nvbo->bo.sg);
#endif
drm_gem_object_release(gem);
/* reset filp so nouveau_bo_del_ttm() can test for it */
#ifdef __NetBSD__
/* XXX Whattakludge! */
gem->gemo_shm_uao = NULL;
#else
gem->filp = NULL;
#endif
ttm_bo_unref(&bo);
}
int ttm_pl_setstatus_ioctl(struct ttm_object_file *tfile,
struct ttm_lock *lock, void *data)
{
union ttm_pl_setstatus_arg *arg = data;
struct ttm_pl_setstatus_req *req = &arg->req;
struct ttm_pl_rep *rep = &arg->rep;
struct ttm_buffer_object *bo;
struct ttm_bo_device *bdev;
struct ttm_placement placement = default_placement;
uint32_t flags[2];
int ret;
bo = ttm_buffer_object_lookup(tfile, req->handle);
if (unlikely(bo == NULL)) {
printk(KERN_ERR
"Could not find buffer object for setstatus.\n");
return -EINVAL;
}
bdev = bo->bdev;
ret = ttm_read_lock(lock, true);
if (unlikely(ret != 0))
goto out_err0;
ret = ttm_bo_reserve(bo, true, false, false, 0);
if (unlikely(ret != 0))
goto out_err1;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
ret = ttm_bo_wait_cpu(bo, false);
if (unlikely(ret != 0))
goto out_err2;
#endif
flags[0] = req->set_placement;
flags[1] = req->clr_placement;
placement.num_placement = 2;
placement.placement = flags;
/* spin_lock(&bo->lock); */ /* Already get reserve lock */
ret = psb_ttm_bo_check_placement(bo, &placement);
if (unlikely(ret != 0))
goto out_err2;
placement.num_placement = 1;
flags[0] = (req->set_placement | bo->mem.placement) & ~req->clr_placement;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
ret = ttm_bo_validate(bo, &placement, true, false, false);
#else
ret = ttm_bo_validate(bo, &placement, true, false);
#endif
if (unlikely(ret != 0))
goto out_err2;
ttm_pl_fill_rep(bo, rep);
out_err2:
/* spin_unlock(&bo->lock); */
ttm_bo_unreserve(bo);
out_err1:
ttm_read_unlock(lock);
out_err0:
ttm_bo_unref(&bo);
return ret;
}
int ttm_pl_ub_create_ioctl(struct ttm_object_file *tfile,
struct ttm_bo_device *bdev,
struct ttm_lock *lock, void *data)
{
union ttm_pl_create_ub_arg *arg = data;
struct ttm_pl_create_ub_req *req = &arg->req;
struct ttm_pl_rep *rep = &arg->rep;
struct ttm_buffer_object *bo;
struct ttm_buffer_object *tmp;
struct ttm_bo_user_object *user_bo;
uint32_t flags;
int ret = 0;
struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
struct ttm_placement placement = default_placement;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0))
size_t acc_size =
ttm_pl_size(bdev, (req->size + PAGE_SIZE - 1) >> PAGE_SHIFT);
#else
size_t acc_size = ttm_bo_acc_size(bdev, req->size,
sizeof(struct ttm_buffer_object));
#endif
if (req->user_address & ~PAGE_MASK) {
printk(KERN_ERR "User pointer buffer need page alignment\n");
return -EFAULT;
}
ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
if (unlikely(ret != 0))
return ret;
flags = req->placement;
user_bo = kzalloc(sizeof(*user_bo), GFP_KERNEL);
if (unlikely(user_bo == NULL)) {
ttm_mem_global_free(mem_glob, acc_size);
return -ENOMEM;
}
ret = ttm_read_lock(lock, true);
if (unlikely(ret != 0)) {
ttm_mem_global_free(mem_glob, acc_size);
kfree(user_bo);
return ret;
}
bo = &user_bo->bo;
placement.num_placement = 1;
placement.placement = &flags;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0))
/* For kernel 3.0, use the desired type. */
#define TTM_HACK_WORKAROUND_ttm_bo_type_user ttm_bo_type_user
#else
/* TTM_HACK_WORKAROUND_ttm_bo_type_user -- Hack for porting,
as ttm_bo_type_user is no longer implemented.
This will not result in working code.
FIXME - to be removed. */
#warning warning: ttm_bo_type_user no longer supported
/* For kernel 3.3+, use the wrong type, which will compile but not work. */
#define TTM_HACK_WORKAROUND_ttm_bo_type_user ttm_bo_type_kernel
#endif
#if (LINUX_VERSION_CODE > KERNEL_VERSION(3, 3, 0))
/* Handle frame buffer allocated in user space, Convert
user space virtual address into pages list */
unsigned int page_nr = 0;
struct vm_area_struct *vma = NULL;
struct sg_table *sg = NULL;
unsigned long num_pages = 0;
struct page **pages = 0;
num_pages = (req->size + PAGE_SIZE - 1) >> PAGE_SHIFT;
pages = kzalloc(num_pages * sizeof(struct page *), GFP_KERNEL);
if (unlikely(pages == NULL)) {
printk(KERN_ERR "kzalloc pages failed\n");
return -ENOMEM;
}
down_read(¤t->mm->mmap_sem);
vma = find_vma(current->mm, req->user_address);
if (unlikely(vma == NULL)) {
up_read(¤t->mm->mmap_sem);
kfree(pages);
printk(KERN_ERR "find_vma failed\n");
return -EFAULT;
}
unsigned long before_flags = vma->vm_flags;
if (vma->vm_flags & (VM_IO | VM_PFNMAP))
vma->vm_flags = vma->vm_flags & ((~VM_IO) & (~VM_PFNMAP));
page_nr = get_user_pages(current, current->mm,
req->user_address,
(int)(num_pages), 1, 0, pages,
NULL);
vma->vm_flags = before_flags;
up_read(¤t->mm->mmap_sem);
/* can be written by caller, not forced */
if (unlikely(page_nr < num_pages)) {
kfree(pages);
pages = 0;
printk(KERN_ERR "get_user_pages err.\n");
return -ENOMEM;
}
sg = drm_prime_pages_to_sg(pages, num_pages);
if (unlikely(sg == NULL)) {
kfree(pages);
printk(KERN_ERR "drm_prime_pages_to_sg err.\n");
return -ENOMEM;
}
kfree(pages);
#endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0))
ret = ttm_bo_init(bdev,
bo,
req->size,
TTM_HACK_WORKAROUND_ttm_bo_type_user,
&placement,
req->page_alignment,
req->user_address,
true,
NULL,
acc_size,
NULL,
&ttm_bo_user_destroy);
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
ret = ttm_bo_init(bdev,
bo,
req->size,
ttm_bo_type_sg,
&placement,
req->page_alignment,
req->user_address,
true,
NULL,
acc_size,
sg,
&ttm_ub_bo_user_destroy);
#else
ret = ttm_bo_init(bdev,
bo,
req->size,
ttm_bo_type_sg,
&placement,
req->page_alignment,
true,
NULL,
acc_size,
sg,
&ttm_ub_bo_user_destroy);
#endif
/*
* Note that the ttm_buffer_object_init function
* would've called the destroy function on failure!!
*/
ttm_read_unlock(lock);
if (unlikely(ret != 0))
goto out;
tmp = ttm_bo_reference(bo);
ret = ttm_base_object_init(tfile, &user_bo->base,
flags & TTM_PL_FLAG_SHARED,
ttm_buffer_type,
&ttm_bo_user_release,
&ttm_bo_user_ref_release);
if (unlikely(ret != 0))
goto out_err;
ret = ttm_bo_reserve(bo, true, false, false, 0);
if (unlikely(ret != 0))
goto out_err;
ttm_pl_fill_rep(bo, rep);
ttm_bo_unreserve(bo);
ttm_bo_unref(&bo);
out:
return 0;
out_err:
ttm_bo_unref(&tmp);
ttm_bo_unref(&bo);
return ret;
}
int ttm_pl_create_ioctl(struct ttm_object_file *tfile,
struct ttm_bo_device *bdev,
struct ttm_lock *lock, void *data)
{
union ttm_pl_create_arg *arg = data;
struct ttm_pl_create_req *req = &arg->req;
struct ttm_pl_rep *rep = &arg->rep;
struct ttm_buffer_object *bo;
struct ttm_buffer_object *tmp;
struct ttm_bo_user_object *user_bo;
uint32_t flags;
int ret = 0;
struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
struct ttm_placement placement = default_placement;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0))
size_t acc_size =
ttm_pl_size(bdev, (req->size + PAGE_SIZE - 1) >> PAGE_SHIFT);
#else
size_t acc_size = ttm_bo_acc_size(bdev, req->size,
sizeof(struct ttm_buffer_object));
#endif
ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
if (unlikely(ret != 0))
return ret;
flags = req->placement;
user_bo = kzalloc(sizeof(*user_bo), GFP_KERNEL);
if (unlikely(user_bo == NULL)) {
ttm_mem_global_free(mem_glob, acc_size);
return -ENOMEM;
}
bo = &user_bo->bo;
ret = ttm_read_lock(lock, true);
if (unlikely(ret != 0)) {
ttm_mem_global_free(mem_glob, acc_size);
kfree(user_bo);
return ret;
}
placement.num_placement = 1;
placement.placement = &flags;
if ((flags & TTM_PL_MASK_CACHING) == 0)
flags |= TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
ret = ttm_bo_init(bdev, bo, req->size,
ttm_bo_type_device, &placement,
req->page_alignment, 0, true,
NULL, acc_size, NULL, &ttm_bo_user_destroy);
#else
ret = ttm_bo_init(bdev, bo, req->size,
ttm_bo_type_device, &placement,
req->page_alignment, true,
NULL, acc_size, NULL, &ttm_bo_user_destroy);
#endif
ttm_read_unlock(lock);
/*
* Note that the ttm_buffer_object_init function
* would've called the destroy function on failure!!
*/
if (unlikely(ret != 0))
goto out;
tmp = ttm_bo_reference(bo);
ret = ttm_base_object_init(tfile, &user_bo->base,
flags & TTM_PL_FLAG_SHARED,
ttm_buffer_type,
&ttm_bo_user_release,
&ttm_bo_user_ref_release);
if (unlikely(ret != 0))
goto out_err;
ret = ttm_bo_reserve(bo, true, false, false, 0);
if (unlikely(ret != 0))
goto out_err;
ttm_pl_fill_rep(bo, rep);
ttm_bo_unreserve(bo);
ttm_bo_unref(&bo);
out:
return 0;
out_err:
ttm_bo_unref(&tmp);
ttm_bo_unref(&bo);
return ret;
}
int vsp_init(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
struct ttm_bo_device *bdev = &dev_priv->bdev;
struct vsp_private *vsp_priv;
bool is_iomem;
int ret;
unsigned int context_size;
VSP_DEBUG("init vsp private data structure\n");
vsp_priv = kmalloc(sizeof(struct vsp_private), GFP_KERNEL);
if (vsp_priv == NULL)
return -1;
memset(vsp_priv, 0, sizeof(*vsp_priv));
/* get device --> drm_device --> drm_psb_private --> vsp_priv
* for psb_vsp_pmstate_show: vsp_pmpolicy
* if not pci_set_drvdata, can't get drm_device from device
*/
/* pci_set_drvdata(dev->pdev, dev); */
if (device_create_file(&dev->pdev->dev,
&dev_attr_vsp_pmstate))
DRM_ERROR("TOPAZ: could not create sysfs file\n");
vsp_priv->sysfs_pmstate = sysfs_get_dirent(
dev->pdev->dev.kobj.sd, NULL,
"vsp_pmstate");
vsp_priv->vsp_cmd_num = 0;
vsp_priv->fw_loaded = VSP_FW_NONE;
vsp_priv->current_sequence = 0;
vsp_priv->vsp_state = VSP_STATE_DOWN;
vsp_priv->dev = dev;
vsp_priv->coded_buf = NULL;
vsp_priv->context_num = 0;
atomic_set(&dev_priv->vsp_mmu_invaldc, 0);
dev_priv->vsp_private = vsp_priv;
vsp_priv->cmd_queue_sz = VSP_CMD_QUEUE_SIZE *
sizeof(struct vss_command_t);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
ret = ttm_buffer_object_create(bdev,
vsp_priv->cmd_queue_sz,
ttm_bo_type_kernel,
DRM_PSB_FLAG_MEM_MMU |
TTM_PL_FLAG_NO_EVICT,
0, 0, 0, NULL, &vsp_priv->cmd_queue_bo);
#else
ret = ttm_buffer_object_create(bdev,
vsp_priv->cmd_queue_sz,
ttm_bo_type_kernel,
DRM_PSB_FLAG_MEM_MMU |
TTM_PL_FLAG_NO_EVICT,
0, 0, NULL, &vsp_priv->cmd_queue_bo);
#endif
if (ret != 0) {
DRM_ERROR("VSP: failed to allocate VSP cmd queue\n");
goto out_clean;
}
vsp_priv->ack_queue_sz = VSP_ACK_QUEUE_SIZE *
sizeof(struct vss_response_t);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
ret = ttm_buffer_object_create(bdev,
vsp_priv->ack_queue_sz,
ttm_bo_type_kernel,
DRM_PSB_FLAG_MEM_MMU |
TTM_PL_FLAG_NO_EVICT,
0, 0, 0, NULL, &vsp_priv->ack_queue_bo);
#else
ret = ttm_buffer_object_create(bdev,
vsp_priv->ack_queue_sz,
ttm_bo_type_kernel,
DRM_PSB_FLAG_MEM_MMU |
TTM_PL_FLAG_NO_EVICT,
0, 0, NULL, &vsp_priv->ack_queue_bo);
#endif
if (ret != 0) {
DRM_ERROR("VSP: failed to allocate VSP cmd ack queue\n");
goto out_clean;
}
/* Create setting buffer */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
ret = ttm_buffer_object_create(bdev,
sizeof(struct vsp_settings_t),
ttm_bo_type_kernel,
DRM_PSB_FLAG_MEM_MMU |
TTM_PL_FLAG_NO_EVICT,
0, 0, 0, NULL, &vsp_priv->setting_bo);
#else
ret = ttm_buffer_object_create(bdev,
sizeof(struct vsp_settings_t),
ttm_bo_type_kernel,
DRM_PSB_FLAG_MEM_MMU |
TTM_PL_FLAG_NO_EVICT,
0, 0, NULL, &vsp_priv->setting_bo);
#endif
if (ret != 0) {
DRM_ERROR("VSP: failed to allocate VSP setting buffer\n");
goto out_clean;
}
/* map cmd queue */
ret = ttm_bo_kmap(vsp_priv->cmd_queue_bo, 0,
vsp_priv->cmd_queue_bo->num_pages,
&vsp_priv->cmd_kmap);
if (ret) {
DRM_ERROR("drm_bo_kmap failed: %d\n", ret);
ttm_bo_unref(&vsp_priv->cmd_queue_bo);
ttm_bo_kunmap(&vsp_priv->cmd_kmap);
goto out_clean;
}
vsp_priv->cmd_queue = ttm_kmap_obj_virtual(&vsp_priv->cmd_kmap,
&is_iomem);
/* map ack queue */
ret = ttm_bo_kmap(vsp_priv->ack_queue_bo, 0,
vsp_priv->ack_queue_bo->num_pages,
&vsp_priv->ack_kmap);
if (ret) {
DRM_ERROR("drm_bo_kmap failed: %d\n", ret);
ttm_bo_unref(&vsp_priv->ack_queue_bo);
ttm_bo_kunmap(&vsp_priv->ack_kmap);
goto out_clean;
}
vsp_priv->ack_queue = ttm_kmap_obj_virtual(&vsp_priv->ack_kmap,
&is_iomem);
/* map vsp setting */
ret = ttm_bo_kmap(vsp_priv->setting_bo, 0,
vsp_priv->setting_bo->num_pages,
&vsp_priv->setting_kmap);
if (ret) {
DRM_ERROR("drm_bo_kmap setting_bo failed: %d\n", ret);
ttm_bo_unref(&vsp_priv->setting_bo);
ttm_bo_kunmap(&vsp_priv->setting_kmap);
goto out_clean;
}
vsp_priv->setting = ttm_kmap_obj_virtual(&vsp_priv->setting_kmap,
&is_iomem);
vsp_priv->vp8_filp[0] = NULL;
vsp_priv->vp8_filp[1] = NULL;
vsp_priv->context_vp8_num = 0;
vsp_priv->vp8_cmd_num = 0;
spin_lock_init(&vsp_priv->lock);
mutex_init(&vsp_priv->vsp_mutex);
INIT_DELAYED_WORK(&vsp_priv->vsp_suspend_wq,
&psb_powerdown_vsp);
INIT_DELAYED_WORK(&vsp_priv->vsp_irq_wq,
&vsp_irq_task);
return 0;
out_clean:
vsp_deinit(dev);
return -1;
}
int ttm_bo_init(struct ttm_bo_device *bdev,
struct ttm_buffer_object *bo,
unsigned long size,
enum ttm_bo_type type,
struct ttm_placement *placement,
uint32_t page_alignment,
unsigned long buffer_start,
bool interruptible,
struct file *persistent_swap_storage,
size_t acc_size,
void (*destroy) (struct ttm_buffer_object *))
{
int ret = 0;
unsigned long num_pages;
size += buffer_start & ~PAGE_MASK;
num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
if (num_pages == 0) {
printk(KERN_ERR TTM_PFX "Illegal buffer object size.\n");
if (destroy)
(*destroy)(bo);
else
kfree(bo);
return -EINVAL;
}
bo->destroy = destroy;
kref_init(&bo->kref);
kref_init(&bo->list_kref);
atomic_set(&bo->cpu_writers, 0);
atomic_set(&bo->reserved, 1);
init_waitqueue_head(&bo->event_queue);
INIT_LIST_HEAD(&bo->lru);
INIT_LIST_HEAD(&bo->ddestroy);
INIT_LIST_HEAD(&bo->swap);
INIT_LIST_HEAD(&bo->io_reserve_lru);
bo->bdev = bdev;
bo->glob = bdev->glob;
bo->type = type;
bo->num_pages = num_pages;
bo->mem.size = num_pages << PAGE_SHIFT;
bo->mem.mem_type = TTM_PL_SYSTEM;
bo->mem.num_pages = bo->num_pages;
bo->mem.mm_node = NULL;
bo->mem.page_alignment = page_alignment;
bo->mem.bus.io_reserved_vm = false;
bo->mem.bus.io_reserved_count = 0;
bo->buffer_start = buffer_start & PAGE_MASK;
bo->priv_flags = 0;
bo->mem.placement = (TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED);
bo->seq_valid = false;
bo->persistent_swap_storage = persistent_swap_storage;
bo->acc_size = acc_size;
atomic_inc(&bo->glob->bo_count);
ret = ttm_bo_check_placement(bo, placement);
if (unlikely(ret != 0))
goto out_err;
/*
* For ttm_bo_type_device buffers, allocate
* address space from the device.
*/
if (bo->type == ttm_bo_type_device) {
ret = ttm_bo_setup_vm(bo);
if (ret)
goto out_err;
}
ret = ttm_bo_validate(bo, placement, interruptible, false, false);
if (ret)
goto out_err;
ttm_bo_unreserve(bo);
return 0;
out_err:
ttm_bo_unreserve(bo);
ttm_bo_unref(&bo);
return ret;
}
