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drm/i915: intel_update_fbc() requires struct_mutex, so no longer atomic 

As we need to manipulate our device structure and allocate queue a task,
it is no longer a simple atomic operation and cannot be performed along
the atomic modeset paths. Instead make sure that we disable FBC (which
must be therefore kept as a set of simple register writes) when
performing the atomic modeset and leave the heavy-weight
intel_update_fbc() for the normal modeset.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2012-04-17 15:08:19 +01:00 committed by Daniel Vetter
parent 83d4092b03
commit 6b8e6ed02a
1 changed files with 6 additions and 9 deletions
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15
drivers/gpu/drm/i915/intel_display.c
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@ -2331,16 +2331,12 @@ intel_pipe_set_base_atomic(struct drm_crtc *crtc, struct drm_framebuffer *fb,
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
ret = dev_priv->display.update_plane(crtc, fb, x, y);
if (ret)
return ret;
intel_update_fbc(dev);
if (dev_priv->display.disable_fbc)
dev_priv->display.disable_fbc(dev);
intel_increase_pllclock(crtc);
return 0;
return dev_priv->display.update_plane(crtc, fb, x, y);
}
static int
@ -2375,6 +2371,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
struct drm_framebuffer *old_fb)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_i915_master_private *master_priv;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int ret;
@ -2411,8 +2408,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
if (old_fb)
intel_finish_fb(old_fb);
ret = intel_pipe_set_base_atomic(crtc, crtc->fb, x, y,
LEAVE_ATOMIC_MODE_SET);
ret = dev_priv->display.update_plane(crtc, crtc->fb, x, y);
if (ret) {
intel_unpin_fb_obj(to_intel_framebuffer(crtc->fb)->obj);
mutex_unlock(&dev->struct_mutex);
@ -2425,6 +2421,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
}
intel_update_fbc(dev);
mutex_unlock(&dev->struct_mutex);
if (!dev->primary->master)