On Wed, Sep 03, 2014 at 05:10:18PM -0300, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
>
> As a preparation for atomic updates we need to split the code to check
> everything we are going to commit first. This patch starts the work to
> split intel_primary_plane_setplane() into check() and commit() parts.
>
> More work is expected on this to get a better split of the two steps.
> Ideally the commit() step should never fail.
>
> Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_display.c | 130 +++++++++++++++++++----------------
> 1 file changed, 72 insertions(+), 58 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index c3f1967..1e3985b 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -11663,63 +11663,37 @@ disable_unpin:
> }
>
> static int
> -intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
> - struct drm_framebuffer *fb, int crtc_x, int crtc_y,
> - unsigned int crtc_w, unsigned int crtc_h,
> - uint32_t src_x, uint32_t src_y,
> - uint32_t src_w, uint32_t src_h)
> +intel_check_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_rect *dest = &state->dst;
> + struct drm_rect *src = &state->src;
> + const struct drm_rect *clip = &state->clip;
> +
> + return 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);
> +}
> +
> +static int
> +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);
> struct drm_i915_gem_object *obj = intel_fb_obj(fb);
> struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb);
> - struct drm_rect dest = {
> - /* integer pixels */
> - .x1 = crtc_x,
> - .y1 = crtc_y,
> - .x2 = crtc_x + crtc_w,
> - .y2 = crtc_y + crtc_h,
> - };
> - struct drm_rect src = {
> - /* 16.16 fixed point */
> - .x1 = src_x,
> - .y1 = src_y,
> - .x2 = src_x + src_w,
> - .y2 = src_y + src_h,
> - };
> - const struct drm_rect clip = {
> - /* integer pixels */
> - .x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0,
> - .y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0,
> - };
> - const struct {
> - int crtc_x, crtc_y;
> - unsigned int crtc_w, crtc_h;
> - uint32_t src_x, src_y, src_w, src_h;
> - } orig = {
> - .crtc_x = crtc_x,
> - .crtc_y = crtc_y,
> - .crtc_w = crtc_w,
> - .crtc_h = crtc_h,
> - .src_x = src_x,
> - .src_y = src_y,
> - .src_w = src_w,
> - .src_h = src_h,
> - };
> struct intel_plane *intel_plane = to_intel_plane(plane);
> - bool visible;
> + struct drm_rect *src = &state->src;
> int ret;
>
> - ret = drm_plane_helper_check_update(plane, crtc, fb,
> - &src, &dest, &clip,
> - DRM_PLANE_HELPER_NO_SCALING,
> - DRM_PLANE_HELPER_NO_SCALING,
> - false, true, &visible);
> -
> - if (ret)
> - return ret;
> -
> /*
> * If the CRTC isn't enabled, we're just pinning the framebuffer,
> * updating the fb pointer, and returning without touching the
> @@ -11754,7 +11728,7 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
> * happens if userspace explicitly disables the plane by passing fb=0
> * because plane->fb still gets set and pinned.
> */
> - if (!visible) {
> + if (!state->visible) {
> mutex_lock(&dev->struct_mutex);
>
> /*
> @@ -11801,7 +11775,7 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
> intel_disable_fbc(dev);
> }
> }
> - ret = intel_pipe_set_base(crtc, src.x1, src.y1, fb);
> + ret = intel_pipe_set_base(crtc, src->x1, src->y1, fb);
> if (ret)
> return ret;
>
> @@ -11809,19 +11783,59 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
> intel_enable_primary_hw_plane(plane, crtc);
> }
>
> - intel_plane->crtc_x = orig.crtc_x;
> - intel_plane->crtc_y = orig.crtc_y;
> - intel_plane->crtc_w = orig.crtc_w;
> - intel_plane->crtc_h = orig.crtc_h;
> - intel_plane->src_x = orig.src_x;
> - intel_plane->src_y = orig.src_y;
> - intel_plane->src_w = orig.src_w;
> - intel_plane->src_h = orig.src_h;
> + 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);
> + intel_plane->crtc_h = drm_rect_height(&state->orig_dst);
> + intel_plane->src_x = state->orig_src.x1;
> + intel_plane->src_y = state->orig_src.y1;
> + intel_plane->src_w = drm_rect_width(&state->orig_src);
> + intel_plane->src_h = drm_rect_height(&state->orig_src);
> intel_plane->obj = obj;
>
> return 0;
> }
>
> +static int
> +intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc,
> + struct drm_framebuffer *fb, int crtc_x, int crtc_y,
> + unsigned int crtc_w, unsigned int crtc_h,
> + uint32_t src_x, uint32_t src_y,
> + uint32_t src_w, uint32_t src_h)
> +{
> + struct intel_plane_state state;
> + struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> + int ret;
> +
> + state.crtc = crtc;
> + state.fb = fb;
> +
> + /* sample coordinates in 16.16 fixed point */
> + state.src.x1 = src_x;
> + state.src.x2 = src_x + src_w;
> + state.src.y1 = src_y;
> + state.src.y2 = src_y + src_h;
> +
> + /* integer pixels */
> + state.dst.x1 = crtc_x;
> + state.dst.x2 = crtc_x + crtc_w;
> + state.dst.y1 = crtc_y;
> + state.dst.y2 = crtc_y + crtc_h;
> +
> + state.clip.x1 = 0;
> + state.clip.y1 = 0;
> + state.clip.x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0;
> + state.clip.y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0;
> +
Forgot to populate orig_src/dst here.
> + ret = intel_check_primary_plane(plane, &state);
> + if (ret)
> + return ret;
> +
> + intel_commit_primary_plane(plane, &state);
> +
> + return 0;
> +}
> +
> /* Common destruction function for both primary and cursor planes */
> static void intel_plane_destroy(struct drm_plane *plane)
> {
> --
> 1.9.3
--
Ville Syrjälä
Intel OTC
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