static struct drm_framebuffer *
cirrus_user_framebuffer_create(struct drm_device *dev,
struct drm_file *filp,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
struct cirrus_device *cdev = dev->dev_private;
struct drm_gem_object *obj;
struct drm_framebuffer *fb;
u32 bpp;
int ret;
bpp = drm_format_plane_cpp(mode_cmd->pixel_format, 0) * 8;
if (!cirrus_check_framebuffer(cdev, mode_cmd->width, mode_cmd->height,
bpp, mode_cmd->pitches[0]))
return ERR_PTR(-EINVAL);
obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
if (obj == NULL)
return ERR_PTR(-ENOENT);
fb = kzalloc(sizeof(*fb), GFP_KERNEL);
if (!fb) {
drm_gem_object_put_unlocked(obj);
return ERR_PTR(-ENOMEM);
}
ret = cirrus_framebuffer_init(dev, fb, mode_cmd, obj);
if (ret) {
drm_gem_object_put_unlocked(obj);
kfree(fb);
return ERR_PTR(ret);
}
return fb;
}
static struct drm_framebuffer *
rockchip_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
struct drm_framebuffer *fb;
struct drm_gem_object *objs[ROCKCHIP_MAX_FB_BUFFER];
struct drm_gem_object *obj;
unsigned int hsub;
unsigned int vsub;
int num_planes;
int ret;
int i;
hsub = drm_format_horz_chroma_subsampling(mode_cmd->pixel_format);
vsub = drm_format_vert_chroma_subsampling(mode_cmd->pixel_format);
num_planes = min(drm_format_num_planes(mode_cmd->pixel_format),
ROCKCHIP_MAX_FB_BUFFER);
for (i = 0; i < num_planes; i++) {
unsigned int width = mode_cmd->width / (i ? hsub : 1);
unsigned int height = mode_cmd->height / (i ? vsub : 1);
unsigned int min_size;
obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
if (!obj) {
DRM_DEV_ERROR(dev->dev,
"Failed to lookup GEM object\n");
ret = -ENXIO;
goto err_gem_object_unreference;
}
min_size = (height - 1) * mode_cmd->pitches[i] +
mode_cmd->offsets[i] +
width * drm_format_plane_cpp(mode_cmd->pixel_format, i);
if (obj->size < min_size) {
drm_gem_object_put_unlocked(obj);
ret = -EINVAL;
goto err_gem_object_unreference;
}
objs[i] = obj;
}
fb = rockchip_fb_alloc(dev, mode_cmd, objs, i);
if (IS_ERR(fb)) {
ret = PTR_ERR(fb);
goto err_gem_object_unreference;
}
return fb;
err_gem_object_unreference:
for (i--; i >= 0; i--)
drm_gem_object_put_unlocked(objs[i]);
return ERR_PTR(ret);
}
/**
* drm_gem_fb_create_with_funcs() - Helper function for the
* &drm_mode_config_funcs.fb_create
* callback
* @dev: DRM device
* @file: DRM file that holds the GEM handle(s) backing the framebuffer
* @mode_cmd: Metadata from the userspace framebuffer creation request
* @funcs: vtable to be used for the new framebuffer object
*
* This can be used to set &drm_framebuffer_funcs for drivers that need the
* &drm_framebuffer_funcs.dirty callback. Use drm_gem_fb_create() if you don't
* need to change &drm_framebuffer_funcs.
* The function does buffer size validation.
*
* Returns:
* Pointer to a &drm_framebuffer on success or an error pointer on failure.
*/
struct drm_framebuffer *
drm_gem_fb_create_with_funcs(struct drm_device *dev, struct drm_file *file,
const struct drm_mode_fb_cmd2 *mode_cmd,
const struct drm_framebuffer_funcs *funcs)
{
const struct drm_format_info *info;
struct drm_gem_object *objs[4];
struct drm_framebuffer *fb;
int ret, i;
info = drm_get_format_info(dev, mode_cmd);
if (!info)
return ERR_PTR(-EINVAL);
for (i = 0; i < info->num_planes; i++) {
unsigned int width = mode_cmd->width / (i ? info->hsub : 1);
unsigned int height = mode_cmd->height / (i ? info->vsub : 1);
unsigned int min_size;
objs[i] = drm_gem_object_lookup(file, mode_cmd->handles[i]);
if (!objs[i]) {
DRM_DEBUG_KMS("Failed to lookup GEM object\n");
ret = -ENOENT;
goto err_gem_object_put;
}
min_size = (height - 1) * mode_cmd->pitches[i]
+ drm_format_info_min_pitch(info, i, width)
+ mode_cmd->offsets[i];
if (objs[i]->size < min_size) {
drm_gem_object_put_unlocked(objs[i]);
ret = -EINVAL;
goto err_gem_object_put;
}
}
fb = drm_gem_fb_alloc(dev, mode_cmd, objs, i, funcs);
if (IS_ERR(fb)) {
ret = PTR_ERR(fb);
goto err_gem_object_put;
}
return fb;
err_gem_object_put:
for (i--; i >= 0; i--)
drm_gem_object_put_unlocked(objs[i]);
return ERR_PTR(ret);
}
struct drm_gem_object *vkms_gem_create(struct drm_device *dev,
struct drm_file *file,
u32 *handle,
u64 size)
{
struct vkms_gem_object *obj;
int ret;
if (!file || !dev || !handle)
return ERR_PTR(-EINVAL);
obj = __vkms_gem_create(dev, size);
if (IS_ERR(obj))
return ERR_CAST(obj);
ret = drm_gem_handle_create(file, &obj->gem, handle);
drm_gem_object_put_unlocked(&obj->gem);
if (ret) {
drm_gem_object_release(&obj->gem);
kfree(obj);
return ERR_PTR(ret);
}
return &obj->gem;
}
static int etnaviv_ioctl_gem_wait(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct drm_etnaviv_gem_wait *args = data;
struct timespec *timeout = &TS(args->timeout);
struct drm_gem_object *obj;
struct etnaviv_gpu *gpu;
int ret;
if (args->flags & ~(ETNA_WAIT_NONBLOCK))
return -EINVAL;
if (args->pipe >= ETNA_MAX_PIPES)
return -EINVAL;
gpu = priv->gpu[args->pipe];
if (!gpu)
return -ENXIO;
obj = drm_gem_object_lookup(file, args->handle);
if (!obj)
return -ENOENT;
if (args->flags & ETNA_WAIT_NONBLOCK)
timeout = NULL;
ret = etnaviv_gem_wait_bo(gpu, obj, timeout);
drm_gem_object_put_unlocked(obj);
return ret;
}
static struct drm_framebuffer *
virtio_gpu_user_framebuffer_create(struct drm_device *dev,
struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
struct drm_gem_object *obj = NULL;
struct virtio_gpu_framebuffer *virtio_gpu_fb;
int ret;
/* lookup object associated with res handle */
obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
if (!obj)
return ERR_PTR(-EINVAL);
virtio_gpu_fb = kzalloc(sizeof(*virtio_gpu_fb), GFP_KERNEL);
if (virtio_gpu_fb == NULL)
return ERR_PTR(-ENOMEM);
ret = virtio_gpu_framebuffer_init(dev, virtio_gpu_fb, mode_cmd, obj);
if (ret) {
kfree(virtio_gpu_fb);
drm_gem_object_put_unlocked(obj);
return NULL;
}
return &virtio_gpu_fb->base;
}
static int vgem_gem_dumb_map(struct drm_file *file, struct drm_device *dev,
uint32_t handle, uint64_t *offset)
{
struct drm_gem_object *obj;
int ret;
obj = drm_gem_object_lookup(file, handle);
if (!obj)
return -ENOENT;
if (!obj->filp) {
ret = -EINVAL;
goto unref;
}
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto unref;
*offset = drm_vma_node_offset_addr(&obj->vma_node);
unref:
drm_gem_object_put_unlocked(obj);
return ret;
}
/**
* drm_gem_fb_destroy - Free GEM backed framebuffer
* @fb: Framebuffer
*
* Frees a GEM backed framebuffer with its backing buffer(s) and the structure
* itself. Drivers can use this as their &drm_framebuffer_funcs->destroy
* callback.
*/
void drm_gem_fb_destroy(struct drm_framebuffer *fb)
{
int i;
for (i = 0; i < 4; i++)
drm_gem_object_put_unlocked(fb->obj[i]);
drm_framebuffer_cleanup(fb);
kfree(fb);
}
int tegra_uapi_gem_set_tiling(struct drm_device *drm, void *data,
struct drm_file *file)
{
struct drm_tegra_gem_set_tiling *args = data;
enum tegra_bo_tiling_mode mode;
struct drm_gem_object *gem;
unsigned long value = 0;
struct tegra_bo *bo;
switch (args->mode) {
case DRM_TEGRA_GEM_TILING_MODE_PITCH:
mode = TEGRA_BO_TILING_MODE_PITCH;
if (args->value != 0)
return -EINVAL;
break;
case DRM_TEGRA_GEM_TILING_MODE_TILED:
mode = TEGRA_BO_TILING_MODE_TILED;
if (args->value != 0)
return -EINVAL;
break;
case DRM_TEGRA_GEM_TILING_MODE_BLOCK:
mode = TEGRA_BO_TILING_MODE_BLOCK;
if (args->value > 5)
return -EINVAL;
value = args->value;
break;
default:
return -EINVAL;
}
gem = drm_gem_object_lookup(file, args->handle);
if (!gem)
return -ENOENT;
bo = to_tegra_bo(gem);
bo->tiling.mode = mode;
bo->tiling.value = value;
drm_gem_object_put_unlocked(gem);
return 0;
}
static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj)
{
struct radeon_bo *rbo = gem_to_radeon_bo(gobj);
int ret;
ret = radeon_bo_reserve(rbo, false);
if (likely(ret == 0)) {
radeon_bo_kunmap(rbo);
radeon_bo_unpin(rbo);
radeon_bo_unreserve(rbo);
}
drm_gem_object_put_unlocked(gobj);
}
static void amdgpufb_destroy_pinned_object(struct drm_gem_object *gobj)
{
struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj);
int ret;
ret = amdgpu_bo_reserve(abo, true);
if (likely(ret == 0)) {
amdgpu_bo_kunmap(abo);
amdgpu_bo_unpin(abo);
amdgpu_bo_unreserve(abo);
}
drm_gem_object_put_unlocked(gobj);
}
struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
struct drm_file *file,
const struct drm_mode_fb_cmd2 *cmd)
{
unsigned int hsub, vsub, i;
struct tegra_bo *planes[4];
struct drm_gem_object *gem;
struct tegra_fb *fb;
int err;
hsub = drm_format_horz_chroma_subsampling(cmd->pixel_format);
vsub = drm_format_vert_chroma_subsampling(cmd->pixel_format);
for (i = 0; i < drm_format_num_planes(cmd->pixel_format); i++) {
unsigned int width = cmd->width / (i ? hsub : 1);
unsigned int height = cmd->height / (i ? vsub : 1);
unsigned int size, bpp;
gem = drm_gem_object_lookup(file, cmd->handles[i]);
if (!gem) {
err = -ENXIO;
goto unreference;
}
bpp = drm_format_plane_cpp(cmd->pixel_format, i);
size = (height - 1) * cmd->pitches[i] +
width * bpp + cmd->offsets[i];
if (gem->size < size) {
err = -EINVAL;
goto unreference;
}
planes[i] = to_tegra_bo(gem);
}
fb = tegra_fb_alloc(drm, cmd, planes, i);
if (IS_ERR(fb)) {
err = PTR_ERR(fb);
goto unreference;
}
return &fb->base;
unreference:
while (i--)
drm_gem_object_put_unlocked(&planes[i]->gem);
return ERR_PTR(err);
}
static int vc4_v3d_runtime_suspend(struct device *dev)
{
struct vc4_v3d *v3d = dev_get_drvdata(dev);
struct vc4_dev *vc4 = v3d->vc4;
vc4_irq_uninstall(vc4->dev);
drm_gem_object_put_unlocked(&vc4->bin_bo->base.base);
vc4->bin_bo = NULL;
clk_disable_unprepare(v3d->clk);
return 0;
}
int tegra_uapi_gem_mmap(struct drm_device *drm, void *data,
struct drm_file *file)
{
struct drm_tegra_gem_mmap *args = data;
struct drm_gem_object *gem;
gem = drm_gem_object_lookup(file, args->handle);
if (!gem)
return -EINVAL;
args->offset = drm_vma_node_offset_addr(&gem->vma_node);
drm_gem_object_put_unlocked(gem);
return 0;
}
static struct drm_framebuffer *
exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
const struct drm_format_info *info = drm_get_format_info(dev, mode_cmd);
struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
struct drm_gem_object *obj;
struct drm_framebuffer *fb;
int i;
int ret;
for (i = 0; i < info->num_planes; i++) {
unsigned int height = (i == 0) ? mode_cmd->height :
DIV_ROUND_UP(mode_cmd->height, info->vsub);
unsigned long size = height * mode_cmd->pitches[i] +
mode_cmd->offsets[i];
obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
if (!obj) {
DRM_ERROR("failed to lookup gem object\n");
ret = -ENOENT;
goto err;
}
exynos_gem[i] = to_exynos_gem(obj);
if (size > exynos_gem[i]->size) {
i++;
ret = -EINVAL;
goto err;
}
}
fb = exynos_drm_framebuffer_init(dev, mode_cmd, exynos_gem, i);
if (IS_ERR(fb)) {
ret = PTR_ERR(fb);
goto err;
}
return fb;
err:
while (i--)
drm_gem_object_put_unlocked(&exynos_gem[i]->base);
return ERR_PTR(ret);
}
static struct drm_gem_object *vgem_gem_create(struct drm_device *dev,
struct drm_file *file,
unsigned int *handle,
unsigned long size)
{
struct drm_vgem_gem_object *obj;
int ret;
obj = __vgem_gem_create(dev, size);
if (IS_ERR(obj))
return ERR_CAST(obj);
ret = drm_gem_handle_create(file, &obj->base, handle);
drm_gem_object_put_unlocked(&obj->base);
if (ret)
return ERR_PTR(ret);
return &obj->base;
}
static int etnaviv_ioctl_gem_info(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_gem_info *args = data;
struct drm_gem_object *obj;
int ret;
if (args->pad)
return -EINVAL;
obj = drm_gem_object_lookup(file, args->handle);
if (!obj)
return -ENOENT;
ret = etnaviv_gem_mmap_offset(obj, &args->offset);
drm_gem_object_put_unlocked(obj);
return ret;
}
static int etnaviv_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_gem_cpu_prep *args = data;
struct drm_gem_object *obj;
int ret;
if (args->op & ~(ETNA_PREP_READ | ETNA_PREP_WRITE | ETNA_PREP_NOSYNC))
return -EINVAL;
obj = drm_gem_object_lookup(file, args->handle);
if (!obj)
return -ENOENT;
ret = etnaviv_gem_cpu_prep(obj, args->op, &TS(args->timeout));
drm_gem_object_put_unlocked(obj);
return ret;
}
static int etnaviv_ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_gem_cpu_fini *args = data;
struct drm_gem_object *obj;
int ret;
if (args->flags)
return -EINVAL;
obj = drm_gem_object_lookup(file, args->handle);
if (!obj)
return -ENOENT;
ret = etnaviv_gem_cpu_fini(obj);
drm_gem_object_put_unlocked(obj);
return ret;
}
int
cirrus_dumb_mmap_offset(struct drm_file *file,
struct drm_device *dev,
uint32_t handle,
uint64_t *offset)
{
struct drm_gem_object *obj;
struct cirrus_bo *bo;
obj = drm_gem_object_lookup(file, handle);
if (obj == NULL)
return -ENOENT;
bo = gem_to_cirrus_bo(obj);
*offset = cirrus_bo_mmap_offset(bo);
drm_gem_object_put_unlocked(obj);
return 0;
}
static void tegra_fb_destroy(struct drm_framebuffer *framebuffer)
{
struct tegra_fb *fb = to_tegra_fb(framebuffer);
unsigned int i;
for (i = 0; i < fb->num_planes; i++) {
struct tegra_bo *bo = fb->planes[i];
if (bo) {
if (bo->pages)
vunmap(bo->vaddr);
drm_gem_object_put_unlocked(&bo->gem);
}
}
drm_framebuffer_cleanup(framebuffer);
kfree(fb->planes);
kfree(fb);
}
static void mdp4_destroy(struct msm_kms *kms)
{
struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
struct device *dev = mdp4_kms->dev->dev;
struct msm_gem_address_space *aspace = kms->aspace;
if (mdp4_kms->blank_cursor_iova)
msm_gem_put_iova(mdp4_kms->blank_cursor_bo, kms->aspace);
drm_gem_object_put_unlocked(mdp4_kms->blank_cursor_bo);
if (aspace) {
aspace->mmu->funcs->detach(aspace->mmu,
iommu_ports, ARRAY_SIZE(iommu_ports));
msm_gem_address_space_put(aspace);
}
if (mdp4_kms->rpm_enabled)
pm_runtime_disable(dev);
kfree(mdp4_kms);
}
/* return holding the reference to this object */
static int qxlhw_handle_to_bo(struct drm_file *file_priv, uint64_t handle,
struct qxl_release *release, struct qxl_bo **qbo_p)
{
struct drm_gem_object *gobj;
struct qxl_bo *qobj;
int ret;
gobj = drm_gem_object_lookup(file_priv, handle);
if (!gobj)
return -EINVAL;
qobj = gem_to_qxl_bo(gobj);
ret = qxl_release_list_add(release, qobj);
drm_gem_object_put_unlocked(gobj);
if (ret)
return ret;
*qbo_p = qobj;
return 0;
}
int tegra_uapi_gem_cpu_prep(struct drm_device *drm, void *data,
struct drm_file *file)
{
struct drm_tegra_gem_cpu_prep *args = data;
struct drm_gem_object *gem;
struct tegra_bo *bo;
unsigned long timeout;
bool write;
int ret;
gem = drm_gem_object_lookup(file, args->handle);
if (!gem) {
DRM_ERROR("failed to find bo handle %u\n", args->handle);
return -ENOENT;
}
bo = to_tegra_bo(gem);
write = !!(args->flags & DRM_TEGRA_CPU_PREP_WRITE);
timeout = usecs_to_jiffies(args->timeout);
ret = reservation_object_wait_timeout_rcu(bo->resv, write,
true, timeout);
drm_gem_object_put_unlocked(gem);
if (ret == 0) {
DRM_DEBUG_DRIVER("bo handle %u is busy\n", args->handle);
return timeout == 0 ? -EBUSY : -ETIMEDOUT;
}
if (ret < 0) {
DRM_ERROR("failed to await bo handle %u: %d\n",
args->handle, ret);
return ret;
}
DRM_DEBUG_DRIVER("bo handle %u is idling\n", args->handle);
return 0;
}
int tegra_uapi_gem_get_tiling(struct drm_device *drm, void *data,
struct drm_file *file)
{
struct drm_tegra_gem_get_tiling *args = data;
struct drm_gem_object *gem;
struct tegra_bo *bo;
int err = 0;
gem = drm_gem_object_lookup(file, args->handle);
if (!gem)
return -ENOENT;
bo = to_tegra_bo(gem);
switch (bo->tiling.mode) {
case TEGRA_BO_TILING_MODE_PITCH:
args->mode = DRM_TEGRA_GEM_TILING_MODE_PITCH;
args->value = 0;
break;
case TEGRA_BO_TILING_MODE_TILED:
args->mode = DRM_TEGRA_GEM_TILING_MODE_TILED;
args->value = 0;
break;
case TEGRA_BO_TILING_MODE_BLOCK:
args->mode = DRM_TEGRA_GEM_TILING_MODE_BLOCK;
args->value = bo->tiling.value;
break;
default:
err = -EINVAL;
break;
}
drm_gem_object_put_unlocked(gem);
return err;
}
static void submit_cleanup(struct kref *kref)
{
struct etnaviv_gem_submit *submit =
container_of(kref, struct etnaviv_gem_submit, refcount);
unsigned i;
if (submit->runtime_resumed)
pm_runtime_put_autosuspend(submit->gpu->dev);
if (submit->cmdbuf.suballoc)
etnaviv_cmdbuf_free(&submit->cmdbuf);
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
/* unpin all objects */
if (submit->bos[i].flags & BO_PINNED) {
etnaviv_gem_mapping_unreference(submit->bos[i].mapping);
atomic_dec(&etnaviv_obj->gpu_active);
submit->bos[i].mapping = NULL;
submit->bos[i].flags &= ~BO_PINNED;
}
/* if the GPU submit failed, objects might still be locked */
submit_unlock_object(submit, i);
drm_gem_object_put_unlocked(&etnaviv_obj->base);
}
wake_up_all(&submit->gpu->fence_event);
if (submit->in_fence)
dma_fence_put(submit->in_fence);
if (submit->out_fence)
dma_fence_put(submit->out_fence);
kfree(submit->pmrs);
kfree(submit);
}
int tegra_uapi_gem_set_flags(struct drm_device *drm, void *data,
struct drm_file *file)
{
struct drm_tegra_gem_set_flags *args = data;
struct drm_gem_object *gem;
struct tegra_bo *bo;
if (args->flags & ~DRM_TEGRA_GEM_FLAGS)
return -EINVAL;
gem = drm_gem_object_lookup(file, args->handle);
if (!gem)
return -ENOENT;
bo = to_tegra_bo(gem);
bo->flags = 0;
if (args->flags & DRM_TEGRA_GEM_BOTTOM_UP)
bo->flags |= TEGRA_BO_BOTTOM_UP;
drm_gem_object_put_unlocked(gem);
return 0;
}
int tegra_uapi_gem_get_flags(struct drm_device *drm, void *data,
struct drm_file *file)
{
struct drm_tegra_gem_get_flags *args = data;
struct drm_gem_object *gem;
struct tegra_bo *bo;
gem = drm_gem_object_lookup(file, args->handle);
if (!gem)
return -ENOENT;
bo = to_tegra_bo(gem);
args->flags = 0;
if (bo->flags & TEGRA_BO_BOTTOM_UP)
args->flags |= DRM_TEGRA_GEM_BOTTOM_UP;
if (bo->sgt->nents > 1)
args->flags |= DRM_TEGRA_GEM_SPARSE;
drm_gem_object_put_unlocked(gem);
return 0;
}
int cirrus_dumb_create(struct drm_file *file,
struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
int ret;
struct drm_gem_object *gobj;
u32 handle;
args->pitch = args->width * ((args->bpp + 7) / 8);
args->size = args->pitch * args->height;
ret = cirrus_gem_create(dev, args->size, false,
&gobj);
if (ret)
return ret;
ret = drm_gem_handle_create(file, gobj, &handle);
drm_gem_object_put_unlocked(gobj);
if (ret)
return ret;
args->handle = handle;
return 0;
}
static int tegra_fbdev_probe(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct tegra_fbdev *fbdev = to_tegra_fbdev(helper);
struct tegra_drm *tegra = helper->dev->dev_private;
struct drm_device *drm = helper->dev;
struct drm_mode_fb_cmd2 cmd = { 0 };
unsigned int bytes_per_pixel;
struct drm_framebuffer *fb;
unsigned long offset;
struct fb_info *info;
struct tegra_bo *bo;
size_t size;
int err;
bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8);
cmd.width = sizes->surface_width;
cmd.height = sizes->surface_height;
cmd.pitches[0] = round_up(sizes->surface_width * bytes_per_pixel,
tegra->pitch_align);
cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = cmd.pitches[0] * cmd.height;
bo = tegra_bo_create(drm, size, 0);
if (IS_ERR(bo))
return PTR_ERR(bo);
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info)) {
dev_err(drm->dev, "failed to allocate framebuffer info\n");
drm_gem_object_put_unlocked(&bo->gem);
return PTR_ERR(info);
}
fbdev->fb = tegra_fb_alloc(drm, &cmd, &bo, 1);
if (IS_ERR(fbdev->fb)) {
err = PTR_ERR(fbdev->fb);
dev_err(drm->dev, "failed to allocate DRM framebuffer: %d\n",
err);
drm_gem_object_put_unlocked(&bo->gem);
return PTR_ERR(fbdev->fb);
}
fb = &fbdev->fb->base;
helper->fb = fb;
helper->fbdev = info;
info->par = helper;
info->flags = FBINFO_FLAG_DEFAULT;
info->fbops = &tegra_fb_ops;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
drm_fb_helper_fill_var(info, helper, fb->width, fb->height);
offset = info->var.xoffset * bytes_per_pixel +
info->var.yoffset * fb->pitches[0];
if (bo->pages) {
bo->vaddr = vmap(bo->pages, bo->num_pages, VM_MAP,
pgprot_writecombine(PAGE_KERNEL));
if (!bo->vaddr) {
dev_err(drm->dev, "failed to vmap() framebuffer\n");
err = -ENOMEM;
goto destroy;
}
}
drm->mode_config.fb_base = (resource_size_t)bo->paddr;
info->screen_base = (void __iomem *)bo->vaddr + offset;
info->screen_size = size;
info->fix.smem_start = (unsigned long)(bo->paddr + offset);
info->fix.smem_len = size;
return 0;
destroy:
drm_framebuffer_remove(fb);
return err;
}
