[Intel-gfx] [PATCH 20/24] drm/i915: Add bigjoiner aware plane clipping checks
Maarten Lankhorst
maarten.lankhorst at linux.intel.com
Fri Oct 4 11:35:10 UTC 2019
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
.../gpu/drm/i915/display/intel_atomic_plane.c | 60 +++++++++++++++++++
.../gpu/drm/i915/display/intel_atomic_plane.h | 4 ++
drivers/gpu/drm/i915/display/intel_display.c | 19 +++---
drivers/gpu/drm/i915/display/intel_sprite.c | 21 +++----
4 files changed, 80 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index 08860be6d9ac..26bbea262e57 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -162,6 +162,9 @@ void intel_plane_copy_uapi_to_hw_state(const struct intel_crtc_state *crtc_state
plane_state->hw.rotation = from_plane_state->uapi.rotation;
plane_state->hw.color_encoding = from_plane_state->uapi.color_encoding;
plane_state->hw.color_range = from_plane_state->uapi.color_range;
+
+ plane_state->uapi.src = drm_plane_state_src(&from_plane_state->uapi);
+ plane_state->uapi.dst = drm_plane_state_dest(&from_plane_state->uapi);
}
int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
@@ -428,6 +431,63 @@ intel_atomic_get_plane_state_after_check(struct intel_atomic_state *state,
return plane_state;
}
+int intel_atomic_plane_check_clipping(struct intel_plane_state *plane_state,
+ struct intel_crtc_state *crtc_state,
+ int min_scale, int max_scale,
+ bool can_position)
+{
+ struct drm_framebuffer *fb = plane_state->hw.fb;
+ struct drm_rect *src = &plane_state->uapi.src;
+ struct drm_rect *dst = &plane_state->uapi.dst;
+ unsigned int rotation = plane_state->uapi.rotation;
+ struct drm_rect clip = {};
+ int hscale, vscale;
+
+ if (!fb) {
+ plane_state->uapi.visible = false;
+ return 0;
+ }
+
+ drm_rect_rotate(src, fb->width << 16, fb->height << 16, rotation);
+
+ /* Check scaling */
+ hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
+ vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
+ if (hscale < 0 || vscale < 0) {
+ DRM_DEBUG_KMS("Invalid scaling of plane\n");
+ drm_rect_debug_print("src: ", src, true);
+ drm_rect_debug_print("dst: ", dst, false);
+ return -ERANGE;
+ }
+
+ if (crtc_state->hw.enable) {
+ clip.x2 = crtc_state->pipe_src_w;
+ clip.y2 = crtc_state->pipe_src_h;
+ }
+
+ /* right side of the image is on the slave crtc, adjust dst to match */
+ if (crtc_state->bigjoiner_slave)
+ drm_rect_translate(dst, -crtc_state->pipe_src_w, 0);
+
+ /*
+ * FIXME: This might need further adjustment for seamless scaling
+ * with phase information, for the 2p2 and 2p1 scenarios.
+ */
+ plane_state->uapi.visible = drm_rect_clip_scaled(src, dst, &clip);
+
+ drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16, rotation);
+
+ if (!can_position && plane_state->uapi.visible &&
+ !drm_rect_equals(dst, &clip)) {
+ DRM_DEBUG_KMS("Plane must cover entire CRTC\n");
+ drm_rect_debug_print("dst: ", dst, false);
+ drm_rect_debug_print("clip: ", &clip, false);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
const struct drm_plane_helper_funcs intel_plane_helper_funcs = {
.prepare_fb = intel_prepare_plane_fb,
.cleanup_fb = intel_cleanup_plane_fb,
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.h b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
index e40d6e4e913b..16e1fb4ae596 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
@@ -47,5 +47,9 @@ int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_stat
struct intel_crtc_state *crtc_state,
const struct intel_plane_state *old_plane_state,
struct intel_plane_state *plane_state);
+int intel_atomic_plane_check_clipping(struct intel_plane_state *plane_state,
+ struct intel_crtc_state *crtc_state,
+ int min_scale, int max_scale,
+ bool can_position);
#endif /* __INTEL_ATOMIC_PLANE_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index b88cd8f99a32..66d7eaedcea3 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -3769,12 +3769,10 @@ i9xx_plane_check(struct intel_crtc_state *crtc_state,
if (ret)
return ret;
- ret = drm_atomic_helper_check_plane_state(&plane_state->uapi,
- &crtc_state->uapi,
- DRM_PLANE_HELPER_NO_SCALING,
- DRM_PLANE_HELPER_NO_SCALING,
- i9xx_plane_has_windowing(plane),
- true);
+ ret = intel_atomic_plane_check_clipping(plane_state, crtc_state,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ i9xx_plane_has_windowing(plane));
if (ret)
return ret;
@@ -10783,11 +10781,10 @@ static int intel_check_cursor(struct intel_crtc_state *crtc_state,
return -EINVAL;
}
- ret = drm_atomic_helper_check_plane_state(&plane_state->uapi,
- &crtc_state->uapi,
- DRM_PLANE_HELPER_NO_SCALING,
- DRM_PLANE_HELPER_NO_SCALING,
- true, true);
+ ret = intel_atomic_plane_check_clipping(plane_state, crtc_state,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ true);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index 7515c373fdc8..3213ea0bd838 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -1559,10 +1559,8 @@ g4x_sprite_check(struct intel_crtc_state *crtc_state,
}
}
- ret = drm_atomic_helper_check_plane_state(&plane_state->uapi,
- &crtc_state->uapi,
- min_scale, max_scale,
- true, true);
+ ret = intel_atomic_plane_check_clipping(plane_state, crtc_state,
+ min_scale, max_scale, true);
if (ret)
return ret;
@@ -1616,11 +1614,10 @@ vlv_sprite_check(struct intel_crtc_state *crtc_state,
if (ret)
return ret;
- ret = drm_atomic_helper_check_plane_state(&plane_state->uapi,
- &crtc_state->uapi,
- DRM_PLANE_HELPER_NO_SCALING,
- DRM_PLANE_HELPER_NO_SCALING,
- true, true);
+ ret = intel_atomic_plane_check_clipping(plane_state, crtc_state,
+ DRM_PLANE_HELPER_NO_SCALING,
+ DRM_PLANE_HELPER_NO_SCALING,
+ true);
if (ret)
return ret;
@@ -1781,10 +1778,8 @@ static int skl_plane_check(struct intel_crtc_state *crtc_state,
max_scale = skl_max_scale(crtc_state, fb->format);
}
- ret = drm_atomic_helper_check_plane_state(&plane_state->uapi,
- &crtc_state->uapi,
- min_scale, max_scale,
- true, true);
+ ret = intel_atomic_plane_check_clipping(plane_state, crtc_state,
+ min_scale, max_scale, true);
if (ret)
return ret;
--
2.23.0
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