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drm/vc4: Add get/set tiling ioctls.

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This allows mesa to set the tiling format for a BO and have that
tiling format be respected by mesa on the other side of an
import/export (and by vc4 scanout in the kernel), without defining a
protocol to pass the tiling through userspace.

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170608001336.12842-2-eric@anholt.net
Acked-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Eric Anholt
2017-06-07 17:13:36 -07:00
parent 98830d91da
commit 83753117f1
5 changed files with 147 additions and 1 deletions
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6
drivers/gpu/drm/vc4/vc4_drv.h
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@@ -148,6 +148,8 @@ struct vc4_bo {
*/
uint64_t write_seqno;
bool t_format;
/* List entry for the BO's position in either
* vc4_exec_info->unref_list or vc4_dev->bo_cache.time_list
*/
@@ -470,6 +472,10 @@ int vc4_create_shader_bo_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int vc4_mmap_bo_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int vc4_set_tiling_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int vc4_get_tiling_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int vc4_get_hang_state_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
int vc4_mmap(struct file *filp, struct vm_area_struct *vma);