This bit will indicate the plane is provided by GSCALER. Tests shows that GSCALER does not like to convert from/to too small buffers. Since exact constraints are not provided by documentation rough estimate of 64 pixel has been applied.
Signed-off-by: Andrzej Hajda a.hajda@samsung.com --- drivers/gpu/drm/exynos/exynos_drm_drv.h | 1 + drivers/gpu/drm/exynos/exynos_drm_plane.c | 14 +++++++++++++- 2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 5d06e796dc80..7bdbac639b2b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -75,6 +75,7 @@ to_exynos_plane_state(struct drm_plane_state *state) #define EXYNOS_DRM_PLANE_CAP_TILE (1 << 3) #define EXYNOS_DRM_PLANE_CAP_PIX_BLEND (1 << 4) #define EXYNOS_DRM_PLANE_CAP_WIN_BLEND (1 << 5) +#define EXYNOS_DRM_PLANE_CAP_GSCALER (1 << 6)
struct exynos_drm_plane; struct exynos_drm_plane_ops { diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c index 5f8f56b69369..89168157e1e2 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_plane.c +++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c @@ -198,6 +198,11 @@ exynos_drm_plane_check_format(struct exynos_drm_plane_state *state) return 0; }
+static bool is_in_range(int val, int min, int max) +{ + return (val >= min) && (val < max); +} + static int exynos_drm_plane_check_size(struct exynos_drm_plane_state *state) { @@ -205,7 +210,7 @@ exynos_drm_plane_check_size(struct exynos_drm_plane_state *state) bool width_ok = false, height_ok = false;
if (plane->capabilities & EXYNOS_DRM_PLANE_CAP_SCALE) - return 0; + width_ok = height_ok = true;
if (state->src.w == state->crtc.w) width_ok = true; @@ -221,6 +226,13 @@ exynos_drm_plane_check_size(struct exynos_drm_plane_state *state) state->v_ratio == (1 << 15)) height_ok = true;
+ if (plane->capabilities & EXYNOS_DRM_PLANE_CAP_GSCALER) { + width_ok = is_in_range(state->src.w, 64, 4800) && + is_in_range(state->crtc.w, 64, 4800); + height_ok = is_in_range(state->src.h, 64, 3344) && + is_in_range(state->crtc.h, 64, 3344); + } + if (width_ok && height_ok) return 0;