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drm/nouveau: add dumb ioctl support 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
hifive-unleashed-5.1
Ben Skeggs 2011-09-30 08:55:50 +10:00
parent caca6a03d3
commit 33dbc27f1a
3 changed files with 55 additions and 0 deletions
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45
drivers/gpu/drm/nouveau/nouveau_display.c
View File

@ -369,3 +369,48 @@ nouveau_finish_page_flip(struct nouveau_channel *chan,
spin_unlock_irqrestore(&dev->event_lock, flags);
return 0;
}
int
nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
struct nouveau_bo *bo;
int ret;
args->pitch = roundup(args->width * (args->bpp / 8), 256);
args->size = args->pitch * args->height;
args->size = roundup(args->size, PAGE_SIZE);
ret = nouveau_gem_new(dev, args->size, 0, TTM_PL_FLAG_VRAM, 0, 0, &bo);
if (ret)
return ret;
ret = drm_gem_handle_create(file_priv, bo->gem, &args->handle);
drm_gem_object_unreference_unlocked(bo->gem);
return ret;
}
int
nouveau_display_dumb_destroy(struct drm_file *file_priv, struct drm_device *dev,
uint32_t handle)
{
return drm_gem_handle_delete(file_priv, handle);
}
int
nouveau_display_dumb_map_offset(struct drm_file *file_priv,
struct drm_device *dev,
uint32_t handle, uint64_t *poffset)
{
struct drm_gem_object *gem;
gem = drm_gem_object_lookup(dev, file_priv, handle);
if (gem) {
struct nouveau_bo *bo = gem->driver_private;
*poffset = bo->bo.addr_space_offset;
drm_gem_object_unreference_unlocked(gem);
return 0;
}
return -ENOENT;
}

4
drivers/gpu/drm/nouveau/nouveau_drv.c
View File

@ -433,6 +433,10 @@ static struct drm_driver driver = {
.gem_open_object = nouveau_gem_object_open,
.gem_close_object = nouveau_gem_object_close,
.dumb_create = nouveau_display_dumb_create,
.dumb_map_offset = nouveau_display_dumb_map_offset,
.dumb_destroy = nouveau_display_dumb_destroy,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
#ifdef GIT_REVISION

6
drivers/gpu/drm/nouveau/nouveau_drv.h
View File

@ -1418,6 +1418,12 @@ int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event);
int nouveau_finish_page_flip(struct nouveau_channel *,
struct nouveau_page_flip_state *);
int nouveau_display_dumb_create(struct drm_file *, struct drm_device *,
struct drm_mode_create_dumb *args);
int nouveau_display_dumb_map_offset(struct drm_file *, struct drm_device *,
uint32_t handle, uint64_t *offset);
int nouveau_display_dumb_destroy(struct drm_file *, struct drm_device *,
uint32_t handle);
/* nv10_gpio.c */
int nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);