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drm/amdgpu: Move MMIO flip out of spinlocked region 

Prior actual  MMIO flip we need to acquire DAL mutex to guard
our target state which get modified on reset mode.
Assign page flip status before actual flip to handle
the possible race condition with interrupt.

Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Vitaly Prosyak 2015-10-20 15:02:03 -04:00 committed by Alex Deucher
parent 9ddf940f5d
commit 6bd9e877ce
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
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@ -118,12 +118,12 @@ static void amdgpu_flip_work_func(struct work_struct *__work)
spin_lock_irqsave(&crtc->dev->event_lock, flags); spin_lock_irqsave(&crtc->dev->event_lock, flags);
}; };
/* do the flip (mmio) */
adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base);
/* set the flip status */ /* set the flip status */
amdgpuCrtc->pflip_status = AMDGPU_FLIP_SUBMITTED; amdgpuCrtc->pflip_status = AMDGPU_FLIP_SUBMITTED;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags); spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
/* Do the flip (mmio) */
adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base);
} }
/* /*