From: Gustavo Padovan gustavo.padovan@collabora.co.uk
Fold intel_pipe_set_base() in the update primary plane path merging pieces of code that are common to both paths.
Basically the the pin/unpin procedures are the same for both paths and some checks can also be shared (some of the were moved to the check() stage)
v2: take Ville's comments: - remove unnecessary plane check - move mutex lock to inside the conditional - make the pin fail message a debug one - add a fixme for the fastboot hack - call intel_frontbuffer_flip() after FBC update
v3: take more Ville's comments: - fold update code under if (intel_crtc->active), and do the visible/!visible split inside. - check ret inside the same conditional we assign it
Suggested-by: Ville Syrjälä ville.syrjala@linux.intel.com Signed-off-by: Gustavo Padovan gustavo.padovan@collabora.co.uk --- drivers/gpu/drm/i915/intel_display.c | 139 +++++++++++++++++++++-------------- 1 file changed, 82 insertions(+), 57 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b78f00a..8f3144e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -11824,12 +11824,23 @@ intel_check_primary_plane(struct drm_plane *plane, struct drm_rect *dest = &state->dst; struct drm_rect *src = &state->src; const struct drm_rect *clip = &state->clip; + int ret;
- return drm_plane_helper_check_update(plane, crtc, fb, + ret = drm_plane_helper_check_update(plane, crtc, fb, src, dest, clip, DRM_PLANE_HELPER_NO_SCALING, DRM_PLANE_HELPER_NO_SCALING, false, true, &state->visible); + if (ret) + return ret; + + /* no fb bound */ + if (state->visible && !fb) { + DRM_ERROR("No FB bound\n"); + return -EINVAL; + } + + return 0; }
static int @@ -11841,6 +11852,8 @@ intel_commit_primary_plane(struct drm_plane *plane, 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); @@ -11849,67 +11862,28 @@ intel_commit_primary_plane(struct drm_plane *plane,
intel_crtc_wait_for_pending_flips(crtc);
- /* - * If clipping results in a non-visible primary plane, we'll disable - * the primary plane. Note that this is a bit different than what - * happens if userspace explicitly disables the plane by passing fb=0 - * because plane->fb still gets set and pinned. - */ - if (!state->visible) { - mutex_lock(&dev->struct_mutex); - - /* - * Try to pin the new fb first so that we can bail out if we - * fail. - */ - if (plane->fb != fb) { - ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); - if (ret) { - mutex_unlock(&dev->struct_mutex); - return ret; - } - } - - i915_gem_track_fb(old_obj, obj, - INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe)); - - if (intel_crtc->primary_enabled) - intel_disable_primary_hw_plane(plane, crtc); - - - if (plane->fb != fb) - if (plane->fb) - intel_unpin_fb_obj(old_obj); + if (intel_crtc_has_pending_flip(crtc)) { + DRM_ERROR("pipe is still busy with an old pageflip\n"); + return -EBUSY; + }
+ if (plane->fb != fb) { + mutex_lock(&dev->struct_mutex); + ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); + if (ret == 0) + i915_gem_track_fb(old_obj, obj, + INTEL_FRONTBUFFER_PRIMARY(pipe)); mutex_unlock(&dev->struct_mutex); - - } else { - if (intel_crtc && intel_crtc->active && - intel_crtc->primary_enabled) { - /* - * FBC does not work on some platforms for rotated - * planes, so disable it when rotation is not 0 and - * update it when rotation is set back to 0. - * - * FIXME: This is redundant with the fbc update done in - * the primary plane enable function except that that - * one is done too late. We eventually need to unify - * this. - */ - if (INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) && - dev_priv->fbc.plane == intel_crtc->plane && - intel_plane->rotation != BIT(DRM_ROTATE_0)) { - intel_disable_fbc(dev); - } - } - ret = intel_pipe_set_base(crtc, src->x1, src->y1, fb); - if (ret) + if (ret != 0) { + DRM_DEBUG_KMS("pin & fence failed\n"); return ret; - - if (!intel_crtc->primary_enabled) - intel_enable_primary_hw_plane(plane, crtc); + } }
+ crtc->primary->fb = fb; + crtc->x = src->x1; + crtc->y = src->y1; + intel_plane->crtc_x = state->orig_dst.x1; intel_plane->crtc_y = state->orig_dst.y1; intel_plane->crtc_w = drm_rect_width(&state->orig_dst); @@ -11920,6 +11894,57 @@ intel_commit_primary_plane(struct drm_plane *plane, intel_plane->src_h = drm_rect_height(&state->orig_src); intel_plane->obj = obj;
+ if (intel_crtc->active) { + /* + * FBC does not work on some platforms for rotated + * planes, so disable it when rotation is not 0 and + * update it when rotation is set back to 0. + * + * FIXME: This is redundant with the fbc update done in + * the primary plane enable function except that that + * one is done too late. We eventually need to unify + * this. + */ + if (intel_crtc->primary_enabled && + INTEL_INFO(dev)->gen <= 4 && !IS_G4X(dev) && + dev_priv->fbc.plane == intel_crtc->plane && + intel_plane->rotation != BIT(DRM_ROTATE_0)) { + intel_disable_fbc(dev); + } + + if (state->visible) { + /* FIXME: kill this fastboot hack */ + intel_update_pipe_size(intel_crtc); + intel_enable_primary_hw_plane(plane, crtc); + } else { + /* + * If clipping results in a non-visible primary plane, + * we'll disable the primary plane. Note that this is + * a bit different than what happens if userspace + * explicitly disables the plane by passing fb=0 + * because plane->fb still gets set and pinned. + */ + intel_disable_primary_hw_plane(plane, crtc); + } + + intel_frontbuffer_flip(dev, INTEL_FRONTBUFFER_PRIMARY(pipe)); + + mutex_lock(&dev->struct_mutex); + intel_update_fbc(dev); + mutex_unlock(&dev->struct_mutex); + } + + if (old_fb) { + if (intel_crtc->active && old_fb != fb) + intel_wait_for_vblank(dev, intel_crtc->pipe); + + if (old_fb != fb) { + mutex_lock(&dev->struct_mutex); + intel_unpin_fb_obj(old_obj); + mutex_unlock(&dev->struct_mutex); + } + } + return 0; }