Userspace can pass damage area clips per plane to track
changes in a plane and some display components can utilze
these damage clips for efficiently handling use cases like
FBC, PSR etc. A merged damage area is generated and its
coordinates are updated relative to viewport and HW and
stored in the plane_state. This merged damage areas will be
used for FBC dirty rect support in xe3 in the follow-up
patch.
Big thanks to Ville Syrjala for his contribuitions in shaping
up of this series.
v1: - Move damage_merged helper to cover bigjoiner case and use
the correct plane state for damage find helper (Ville)
- Damage handling code under HAS_FBC_DIRTY_RECT() so the
the related part will be executed only for xe3+
- Changed dev_priv to i915 in one of the functions
Signed-off-by: Vinod Govindapillai <vinod.govindapil...@intel.com>
---
.../gpu/drm/i915/display/intel_atomic_plane.c | 28 ++++++++++++
.../drm/i915/display/intel_display_types.h | 2 +
.../drm/i915/display/skl_universal_plane.c | 45 +++++++++++++++++--
3 files changed, 71 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index c558143f4f82..f55f7044dc67 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -36,6 +36,7 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_blend.h>
+#include <drm/drm_damage_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_atomic_helper.h>
@@ -322,6 +323,25 @@ static void intel_plane_clear_hw_state(struct
intel_plane_state *plane_state)
memset(&plane_state->hw, 0, sizeof(plane_state->hw));
}
+static void
+intel_plane_check_plane_damage(struct intel_plane_state *new_plane_state,
+ const struct intel_plane_state
*old_primary_plane_state,
+ const struct intel_plane_state
*new_primary_plane_state)
+{
+ struct intel_display *display = to_intel_display(new_plane_state);
+ struct drm_rect *damage_merged = &new_plane_state->damage_merged;
+
+ if (!HAS_FBC_DIRTY_RECT(display))
+ return;
+
+ if (!drm_atomic_helper_damage_merged(&old_primary_plane_state->uapi,
+ &new_primary_plane_state->uapi,
+ damage_merged))
+ /* Incase helper fails, mark whole plane region as damage */
+ *damage_merged =
+ drm_plane_state_src(&new_primary_plane_state->uapi);
+}
+
void intel_plane_copy_uapi_to_hw_state(struct intel_plane_state *plane_state,
const struct intel_plane_state
*from_plane_state,
struct intel_crtc *crtc)
@@ -691,6 +711,7 @@ int intel_plane_atomic_check(struct intel_atomic_state
*state,
const struct intel_plane_state *old_plane_state =
intel_atomic_get_old_plane_state(state, plane);
const struct intel_plane_state *new_primary_crtc_plane_state;
+ const struct intel_plane_state *old_primary_crtc_plane_state;
struct intel_crtc *crtc = intel_crtc_for_pipe(display, plane->pipe);
const struct intel_crtc_state *old_crtc_state =
intel_atomic_get_old_crtc_state(state, crtc);
@@ -705,10 +726,17 @@ int intel_plane_atomic_check(struct intel_atomic_state
*state,
new_primary_crtc_plane_state =
intel_atomic_get_new_plane_state(state,
primary_crtc_plane);
+ old_primary_crtc_plane_state =
+ intel_atomic_get_old_plane_state(state,
primary_crtc_plane);
} else {
new_primary_crtc_plane_state = new_plane_state;
+ old_primary_crtc_plane_state = old_plane_state;
}
+ intel_plane_check_plane_damage(new_plane_state,
+ old_primary_crtc_plane_state,
+ new_primary_crtc_plane_state);
+
intel_plane_copy_uapi_to_hw_state(new_plane_state,
new_primary_crtc_plane_state,
crtc);
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h
b/drivers/gpu/drm/i915/display/intel_display_types.h
index cb51b7936f93..8d53bcca9614 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -695,6 +695,8 @@ struct intel_plane_state {
u64 ccval;
const char *no_fbc_reason;
+
+ struct drm_rect damage_merged;
};
struct intel_initial_plane_config {
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c
b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 301ad3a22c4c..b90a7d52c071 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -2249,11 +2249,42 @@ static void check_protection(struct intel_plane_state
*plane_state)
!plane_state->decrypt;
}
+static void
+skl_plane_check_damage_with_viewport(struct intel_plane_state *plane_state)
+{
+ struct drm_rect *damage_merged = &plane_state->damage_merged;
+ const struct drm_framebuffer *fb = plane_state->hw.fb;
+ unsigned int rotation = plane_state->hw.rotation;
+ struct drm_rect *src = &plane_state->uapi.src;
+
+ if (drm_rotation_90_or_270(rotation)) {
+ drm_rect_rotate(damage_merged, fb->width, fb->height,
+ DRM_MODE_ROTATE_270);
+ drm_rect_translate(damage_merged, -(src->y1 >> 16),
+ -(src->x1 >> 16));
+ } else {
+ drm_rect_translate(damage_merged, -(src->x1 >> 16),
+ -(src->y1 >> 16));
+ }
+}
+
+static void
+skl_plane_check_damage_with_plane_surf(struct intel_plane_state *plane_state)
+{
+ struct drm_rect *damage_merged = &plane_state->damage_merged;
+ struct drm_rect src;
+
+ drm_rect_fp_to_int(&src, &plane_state->uapi.src);
+ drm_rect_translate(damage_merged, src.x1, src.y1);
+ drm_rect_intersect(damage_merged, &src);
+}
+
static int skl_plane_check(struct intel_crtc_state *crtc_state,
struct intel_plane_state *plane_state)
{
+ struct intel_display *display = to_intel_display(crtc_state);
struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
- struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
+ struct drm_i915_private *i915 = to_i915(plane->base.dev);
const struct drm_framebuffer *fb = plane_state->hw.fb;
int min_scale = DRM_PLANE_NO_SCALING;
int max_scale = DRM_PLANE_NO_SCALING;
@@ -2266,7 +2297,7 @@ static int skl_plane_check(struct intel_crtc_state
*crtc_state,
/* use scaler when colorkey is not required */
if (!plane_state->ckey.flags && skl_fb_scalable(fb)) {
min_scale = 1;
- max_scale = skl_plane_max_scale(dev_priv, fb);
+ max_scale = skl_plane_max_scale(i915, fb);
}
ret = intel_atomic_plane_check_clipping(plane_state, crtc_state,
@@ -2274,6 +2305,9 @@ static int skl_plane_check(struct intel_crtc_state
*crtc_state,
if (ret)
return ret;
+ if (HAS_FBC_DIRTY_RECT(display))
+ skl_plane_check_damage_with_viewport(plane_state);
+
ret = skl_check_plane_surface(plane_state);
if (ret)
return ret;
@@ -2289,6 +2323,9 @@ static int skl_plane_check(struct intel_crtc_state
*crtc_state,
if (ret)
return ret;
+ if (HAS_FBC_DIRTY_RECT(display))
+ skl_plane_check_damage_with_plane_surf(plane_state);
+
ret = skl_plane_check_nv12_rotation(plane_state);
if (ret)
return ret;
@@ -2301,12 +2338,12 @@ static int skl_plane_check(struct intel_crtc_state
*crtc_state,
plane_state->ctl = skl_plane_ctl(crtc_state, plane_state);
- if (DISPLAY_VER(dev_priv) >= 10)
+ if (DISPLAY_VER(display) >= 10)
plane_state->color_ctl = glk_plane_color_ctl(crtc_state,
plane_state);
if (intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier) &&
- icl_is_hdr_plane(dev_priv, plane->id))
+ icl_is_hdr_plane(i915, plane->id))
/* Enable and use MPEG-2 chroma siting */
plane_state->cus_ctl = PLANE_CUS_ENABLE |
PLANE_CUS_HPHASE_0 |
--
2.43.0
