/* the dumb interface doesn't work with the GEM straight MMAP
interface, it expects to do MMAP on the drm fd, like normal */
int udl_gem_mmap(struct drm_file *file, struct drm_device *dev,
uint32_t handle, uint64_t *offset)
{
struct udl_gem_object *gobj;
struct drm_gem_object *obj;
int ret = 0;
mutex_lock(&dev->struct_mutex);
obj = drm_gem_object_lookup(file, handle);
if (obj == NULL) {
ret = -ENOENT;
goto unlock;
}
gobj = to_udl_bo(obj);
ret = udl_gem_get_pages(gobj);
if (ret)
goto out;
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto out;
*offset = drm_vma_node_offset_addr(&gobj->base.vma_node);
out:
drm_gem_object_unreference(&gobj->base);
unlock:
mutex_unlock(&dev->struct_mutex);
return ret;
}
int rockchip_gem_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *dev, uint32_t handle,
uint64_t *offset)
{
struct drm_gem_object *obj;
int ret;
obj = drm_gem_object_lookup(file_priv, handle);
if (!obj) {
DRM_ERROR("failed to lookup gem object.\n");
return -EINVAL;
}
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto out;
*offset = drm_vma_node_offset_addr(&obj->vma_node);
DRM_DEBUG_KMS("offset = 0x%llx\n", *offset);
out:
drm_gem_object_unreference_unlocked(obj);
return 0;
}
static int
nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
struct drm_nouveau_gem_info *rep)
{
struct nouveau_cli *cli = nouveau_cli(file_priv);
struct nouveau_bo *nvbo = nouveau_gem_object(gem);
struct nouveau_vma *vma;
if (nvbo->bo.mem.mem_type == TTM_PL_TT)
rep->domain = NOUVEAU_GEM_DOMAIN_GART;
else
rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
rep->offset = nvbo->bo.offset;
if (cli->base.vm) {
vma = nouveau_bo_vma_find(nvbo, cli->base.vm);
if (!vma)
return -EINVAL;
rep->offset = vma->offset;
}
rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
rep->tile_mode = nvbo->tile_mode;
rep->tile_flags = nvbo->tile_flags;
return 0;
}
int mtk_drm_gem_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *dev, uint32_t handle,
uint64_t *offset)
{
struct drm_gem_object *obj;
int ret;
mutex_lock(&dev->struct_mutex);
obj = drm_gem_object_lookup(dev, file_priv, handle);
if (!obj) {
DRM_ERROR("failed to lookup gem object.\n");
ret = -EINVAL;
goto unlock;
}
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto out;
*offset = drm_vma_node_offset_addr(&obj->vma_node);
DRM_DEBUG_KMS("offset = 0x%llx\n", *offset);
out:
drm_gem_object_unreference(obj);
unlock:
mutex_unlock(&dev->struct_mutex);
return ret;
}
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;
}
int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
uint32_t handle, uint64_t *offset)
{
struct drm_gem_object *gem;
struct tegra_bo *bo;
mutex_lock(&drm->struct_mutex);
gem = drm_gem_object_lookup(drm, file, handle);
if (!gem) {
dev_err(drm->dev, "failed to lookup GEM object\n");
mutex_unlock(&drm->struct_mutex);
return -EINVAL;
}
bo = to_tegra_bo(gem);
*offset = drm_vma_node_offset_addr(&bo->gem.vma_node);
drm_gem_object_unreference(gem);
mutex_unlock(&drm->struct_mutex);
return 0;
}
/**
* psb_gem_dumb_map_gtt - buffer mapping for dumb interface
* @file: our drm client file
* @dev: drm device
* @handle: GEM handle to the object (from dumb_create)
*
* Do the necessary setup to allow the mapping of the frame buffer
* into user memory. We don't have to do much here at the moment.
*/
int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
uint32_t handle, uint64_t *offset)
{
int ret = 0;
struct drm_gem_object *obj;
if (!(dev->driver->driver_features & DRIVER_GEM))
return -ENODEV;
mutex_lock(&dev->struct_mutex);
/* GEM does all our handle to object mapping */
obj = drm_gem_object_lookup(dev, file, handle);
if (obj == NULL) {
ret = -ENOENT;
goto unlock;
}
/* What validation is needed here ? */
/* Make it mmapable */
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto out;
*offset = drm_vma_node_offset_addr(&obj->vma_node);
out:
drm_gem_object_unreference(obj);
unlock:
mutex_unlock(&dev->struct_mutex);
return ret;
}
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;
}
/** get mmap offset */
static uint64_t mmap_offset(struct drm_gem_object *obj)
{
struct drm_device *dev = obj->dev;
int ret;
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
/* Make it mmapable */
ret = drm_gem_create_mmap_offset(obj);
if (ret) {
dev_err(dev->dev, "could not allocate mmap offset\n");
return 0;
}
return drm_vma_node_offset_addr(&obj->vma_node);
}
/**
* drm_gem_cma_dumb_map_offset - return the fake mmap offset for a CMA GEM
* object
* @file_priv: DRM file-private structure containing the GEM object
* @drm: DRM device
* @handle: GEM object handle
* @offset: return location for the fake mmap offset
*
* This function look up an object by its handle and returns the fake mmap
* offset associated with it. Drivers using the CMA helpers should set this
* as their DRM driver's ->dumb_map_offset() callback.
*
* Returns:
* 0 on success or a negative error code on failure.
*/
int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *drm, u32 handle,
u64 *offset)
{
struct drm_gem_object *gem_obj;
gem_obj = drm_gem_object_lookup(drm, file_priv, handle);
if (!gem_obj) {
dev_err(drm->dev, "failed to lookup GEM object\n");
return -EINVAL;
}
*offset = drm_vma_node_offset_addr(&gem_obj->vma_node);
drm_gem_object_unreference_unlocked(gem_obj);
return 0;
}
int vc4_mmap_bo_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_vc4_mmap_bo *args = data;
struct drm_gem_object *gem_obj;
gem_obj = drm_gem_object_lookup(dev, file_priv, args->handle);
if (!gem_obj) {
DRM_ERROR("Failed to look up GEM BO %d\n", args->handle);
return -EINVAL;
}
/* The mmap offset was set up at BO allocation time. */
args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node);
drm_gem_object_unreference_unlocked(gem_obj);
return 0;
}
/*
* drm_gem_cma_dumb_map_offset - (struct drm_driver)->dumb_map_offset callback
* function
*/
int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *drm, uint32_t handle, uint64_t *offset)
{
struct drm_gem_object *gem_obj;
mutex_lock(&drm->struct_mutex);
gem_obj = drm_gem_object_lookup(drm, file_priv, handle);
if (!gem_obj) {
dev_err(drm->dev, "failed to lookup gem object\n");
mutex_unlock(&drm->struct_mutex);
return -EINVAL;
}
*offset = drm_vma_node_offset_addr(&gem_obj->vma_node);
drm_gem_object_unreference(gem_obj);
mutex_unlock(&drm->struct_mutex);
return 0;
}
static int
nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem,
struct drm_nouveau_gem_info *rep)
{
struct nouveau_cli *cli = nouveau_cli(file_priv);
struct nouveau_bo *nvbo = nouveau_gem_object(gem);
struct nouveau_vma *vma;
if (is_power_of_2(nvbo->valid_domains))
rep->domain = nvbo->valid_domains;
else if (nvbo->bo.mem.mem_type == TTM_PL_TT)
rep->domain = NOUVEAU_GEM_DOMAIN_GART;
else
rep->domain = NOUVEAU_GEM_DOMAIN_VRAM;
rep->offset = nvbo->bo.offset;
if (cli->vmm.vmm.object.oclass >= NVIF_CLASS_VMM_NV50) {
vma = nouveau_vma_find(nvbo, &cli->vmm);
if (!vma)
return -EINVAL;
rep->offset = vma->addr;
}
rep->size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
rep->map_handle = drm_vma_node_offset_addr(&nvbo->bo.vma_node);
rep->tile_mode = nvbo->mode;
rep->tile_flags = nvbo->contig ? 0 : NOUVEAU_GEM_TILE_NONCONTIG;
if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI)
rep->tile_flags |= nvbo->kind << 8;
else
if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
rep->tile_flags |= nvbo->kind << 8 | nvbo->comp << 16;
else
rep->tile_flags |= nvbo->zeta;
return 0;
}
static inline u64 ast_bo_mmap_offset(struct ast_bo *bo)
{
return drm_vma_node_offset_addr(&bo->bo.vma_node);
}
static u64 hibmc_bo_mmap_offset(struct hibmc_bo *bo)
{
return drm_vma_node_offset_addr(&bo->bo.vma_node);
}