xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm: mali-dp: Add writeback connector

Browse Source 
Mali-DP has a memory writeback engine which can be used to write the
composition result to a memory buffer. Expose this functionality as a
DRM writeback connector on supported hardware.

Changes since v1:
 Daniel Vetter:
 - Don't require a modeset when writeback routing changes
 - Make writeback connector always disconnected

Changes since v2:
 - Rebase onto new drm_writeback_connector
 - Add reset callback, allocating subclassed state
 Daniel Vetter:
 - Squash out-fence support into this commit
 Gustavo Padovan:
 - Don't signal fence directly from driver (and drop malidp_mw_job)

Changes since v3:
 - Modifications to fit with Mali-DP commit tail changes

Signed-off-by: Brian Starkey <brian.starkey@arm.com>
[rebased and fixed conflicts]
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
Brian Starkey
2017-11-02 16:49:51 +00:00
committed by Liviu Dudau
parent 09368e32a9
commit 8cbc5caf36
8 changed files with 301 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/arm/malidp_drv.h
View File

@@ -13,6 +13,8 @@
#ifndef __MALIDP_DRV_H__
#define __MALIDP_DRV_H__
#include <drm/drm_writeback.h>
#include <drm/drm_encoder.h>
#include <linux/mutex.h>
#include <linux/wait.h>
#include <drm/drmP.h>
@@ -25,6 +27,7 @@
struct malidp_drm {
struct malidp_hw_device *dev;
struct drm_crtc crtc;
struct drm_writeback_connector mw_connector;
wait_queue_head_t wq;
struct drm_pending_vblank_event *event;
atomic_t config_valid;