[PATCH v3 08/11] drm/i915: create a prepare step for primary planes updates

Gustavo Padovan
2014-09-24T17:20:29Z

From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

Take out the pin_fb code so commit phase can't fail anymore.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
drivers/gpu/drm/i915/intel_display.c | 35 ++++++++++++++++++++++++++---------
1 file changed, 26 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index dfe9ad5..9dd4952 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11588,20 +11588,16 @@ intel_check_primary_plane(struct drm_plane *plane,
}

static int
-intel_commit_primary_plane(struct drm_plane *plane,
- struct intel_plane_state *state)
+intel_prepare_primary_plane(struct drm_plane *plane,
+ struct intel_plane_state *state)
{
struct drm_crtc *crtc = state->crtc;
struct drm_framebuffer *fb = state->fb;
struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
enum pipe pipe = intel_crtc->pipe;
- struct drm_framebuffer *old_fb = plane->fb;
struct drm_i915_gem_object *obj = intel_fb_obj(fb);
struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb);
- struct intel_plane *intel_plane = to_intel_plane(plane);
- struct drm_rect *src = &state->src;
int ret;

intel_crtc_wait_for_pending_flips(crtc);
@@ -11611,7 +11607,7 @@ intel_commit_primary_plane(struct drm_plane *plane,
return -EBUSY;
}

- if (plane->fb != fb) {
+ if (old_obj != obj) {
mutex_lock(&dev->struct_mutex);
ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
if (ret == 0)
@@ -11624,6 +11620,25 @@ intel_commit_primary_plane(struct drm_plane *plane,
}
}

+ return 0;
+}
+
+static void
+intel_commit_primary_plane(struct drm_plane *plane,
+ struct intel_plane_state *state)
+{
+ struct drm_crtc *crtc = state->crtc;
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ enum pipe pipe = intel_crtc->pipe;
+ struct drm_framebuffer *old_fb = plane->fb;
+ struct drm_i915_gem_object *obj = intel_fb_obj(fb);
+ struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb);
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ struct drm_rect *src = &state->src;
+
crtc->primary->fb = fb;
crtc->x = src->x1;
crtc->y = src->y1;
@@ -11700,8 +11715,6 @@ intel_commit_primary_plane(struct drm_plane *plane,
intel_unpin_fb_obj(old_obj);
mutex_unlock(&dev->struct_mutex);
}
-
- return 0;
}

static int
@@ -11742,6 +11755,10 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
if (ret)
return ret;

+ ret = intel_prepare_primary_plane(plane, &state);
+ if (ret)
+ return ret;
+
intel_commit_primary_plane(plane, &state);

return 0;
--
1.9.3