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disp: msm: sde: send event on trusted vm transition

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This change sends a notification to user mode after msm_drm
driver releases the mmio and irq resources on trusted vm transition
request. This is required as user mode has no other way to know
when the resources where actually released. User mode driver earlier
relied on retire fence signaling but retire fences are send before
releasing the hw.

Change-Id: Ia218cfcbf398b2de1ad9578fb9baedf348b067df
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>
This commit is contained in:
Abhijit Kulkarni
2021-11-02 18:19:18 -07:00
parent c9ecf74127
commit 683f6bc6af
4 changed files with 22 additions and 0 deletions
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include/uapi/display/drm/sde_drm.h
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@@ -814,6 +814,7 @@ struct drm_msm_noise_layer_cfg {
#define DRM_EVENT_MMRM_CB 0X8000000B
#define DRM_EVENT_FRAME_DATA 0x8000000C
#define DRM_EVENT_DIMMING_BL 0X8000000D
#define DRM_EVENT_VM_RELEASE 0X8000000E
#ifndef DRM_MODE_FLAG_VID_MODE_PANEL
#define DRM_MODE_FLAG_VID_MODE_PANEL 0x01