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drm/amdgpu: restore the fbdev mode in lastclose 

restore the fbdev state if a drm app like X is killed.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Alex Deucher 2015-10-02 16:59:34 -04:00
parent 8c70e1cda0
commit 8b7530b15c
3 changed files with 21 additions and 1 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
View File

@ -402,3 +402,19 @@ bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj)
return true;
return false;
}
void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev)
{
struct amdgpu_fbdev *afbdev = adev->mode_info.rfbdev;
struct drm_fb_helper *fb_helper;
int ret;
if (!afbdev)
return;
fb_helper = &afbdev->helper;
ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
if (ret)
DRM_DEBUG("failed to restore crtc mode\n");
}

5
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View File

@ -485,7 +485,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
* Outdated mess for old drm with Xorg being in charge (void function now).
*/
/**
* amdgpu_driver_firstopen_kms - drm callback for last close
* amdgpu_driver_lastclose_kms - drm callback for last close
*
* @dev: drm dev pointer
*
@ -493,6 +493,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
*/
void amdgpu_driver_lastclose_kms(struct drm_device *dev)
{
struct amdgpu_device *adev = dev->dev_private;
amdgpu_fbdev_restore_mode(adev);
vga_switcheroo_process_delayed_switch();
}

1
drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
View File

@ -567,6 +567,7 @@ void amdgpu_fbdev_fini(struct amdgpu_device *adev);
void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state);
int amdgpu_fbdev_total_size(struct amdgpu_device *adev);
bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj);
void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev);
void amdgpu_fb_output_poll_changed(struct amdgpu_device *adev);