64 bpp half float formats are supported on hdr planes only and are subject
to the following restrictions:
  * 90/270 rotation not supported
  * Yf Tiling not supported
  * Frame Buffer Compression not supported
  * Color Keying not supported

v2:
- Drop handling pixel normalize register
- Don't use icl_is_hdr_plane too early

Signed-off-by: Kevin Strasser <kevin.stras...@intel.com>
Cc: Uma Shankar <uma.shan...@intel.com>
Cc: Shashank Sharma <shashank.sha...@intel.com>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Cc: David Airlie <airl...@linux.ie>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/i915/intel_display.c | 22 ++++++++++++
 drivers/gpu/drm/i915/intel_sprite.c  | 67 ++++++++++++++++++++++++++++++++----
 2 files changed, 83 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index a6d8985..f413ccd 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2668,6 +2668,18 @@ int skl_format_to_fourcc(int format, bool rgb_order, 
bool alpha)
                return DRM_FORMAT_RGB565;
        case PLANE_CTL_FORMAT_NV12:
                return DRM_FORMAT_NV12;
+       case PLANE_CTL_FORMAT_XRGB_16161616F:
+               if (rgb_order) {
+                       if (alpha)
+                               return DRM_FORMAT_ABGR16161616F;
+                       else
+                               return DRM_FORMAT_XBGR16161616F;
+               } else {
+                       if (alpha)
+                               return DRM_FORMAT_ARGB16161616F;
+                       else
+                               return DRM_FORMAT_XRGB16161616F;
+               }
        default:
        case PLANE_CTL_FORMAT_XRGB_8888:
                if (rgb_order) {
@@ -3566,6 +3578,12 @@ static u32 skl_plane_ctl_format(u32 pixel_format)
                return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_VYUY;
        case DRM_FORMAT_NV12:
                return PLANE_CTL_FORMAT_NV12;
+       case DRM_FORMAT_XBGR16161616F:
+       case DRM_FORMAT_ABGR16161616F:
+               return PLANE_CTL_FORMAT_XRGB_16161616F | PLANE_CTL_ORDER_RGBX;
+       case DRM_FORMAT_XRGB16161616F:
+       case DRM_FORMAT_ARGB16161616F:
+               return PLANE_CTL_FORMAT_XRGB_16161616F;
        default:
                MISSING_CASE(pixel_format);
        }
@@ -5069,6 +5087,10 @@ static int skl_update_scaler_plane(struct 
intel_crtc_state *crtc_state,
        case DRM_FORMAT_UYVY:
        case DRM_FORMAT_VYUY:
        case DRM_FORMAT_NV12:
+       case DRM_FORMAT_XBGR16161616F:
+       case DRM_FORMAT_ABGR16161616F:
+       case DRM_FORMAT_XRGB16161616F:
+       case DRM_FORMAT_ARGB16161616F:
                break;
        default:
                DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d unsupported scaling format 
0x%x\n",
diff --git a/drivers/gpu/drm/i915/intel_sprite.c 
b/drivers/gpu/drm/i915/intel_sprite.c
index cd42e81..97f9d05 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1450,8 +1450,6 @@ static int skl_plane_check_fb(const struct 
intel_crtc_state *crtc_state,
                /*
                 * 90/270 is not allowed with RGB64 16:16:16:16 and
                 * Indexed 8-bit. RGB 16-bit 5:6:5 is allowed gen11 onwards.
-                * TBD: Add RGB64 case once its added in supported format
-                * list.
                 */
                switch (fb->format->format) {
                case DRM_FORMAT_RGB565:
@@ -1459,6 +1457,10 @@ static int skl_plane_check_fb(const struct 
intel_crtc_state *crtc_state,
                                break;
                        /* fall through */
                case DRM_FORMAT_C8:
+               case DRM_FORMAT_XRGB16161616F:
+               case DRM_FORMAT_XBGR16161616F:
+               case DRM_FORMAT_ARGB16161616F:
+               case DRM_FORMAT_ABGR16161616F:
                        DRM_DEBUG_KMS("Unsupported pixel format %s for 
90/270!\n",
                                      drm_get_format_name(fb->format->format,
                                                          &format_name));
@@ -1774,6 +1776,45 @@ static const u32 skl_planar_formats[] = {
        DRM_FORMAT_NV12,
 };
 
+static const uint32_t icl_hdr_plane_formats[] = {
+       DRM_FORMAT_C8,
+       DRM_FORMAT_RGB565,
+       DRM_FORMAT_XRGB8888,
+       DRM_FORMAT_XBGR8888,
+       DRM_FORMAT_ARGB8888,
+       DRM_FORMAT_ABGR8888,
+       DRM_FORMAT_XRGB2101010,
+       DRM_FORMAT_XBGR2101010,
+       DRM_FORMAT_XRGB16161616F,
+       DRM_FORMAT_XBGR16161616F,
+       DRM_FORMAT_ARGB16161616F,
+       DRM_FORMAT_ABGR16161616F,
+       DRM_FORMAT_YUYV,
+       DRM_FORMAT_YVYU,
+       DRM_FORMAT_UYVY,
+       DRM_FORMAT_VYUY,
+};
+
+static const uint32_t icl_hdr_planar_formats[] = {
+       DRM_FORMAT_C8,
+       DRM_FORMAT_RGB565,
+       DRM_FORMAT_XRGB8888,
+       DRM_FORMAT_XBGR8888,
+       DRM_FORMAT_ARGB8888,
+       DRM_FORMAT_ABGR8888,
+       DRM_FORMAT_XRGB2101010,
+       DRM_FORMAT_XBGR2101010,
+       DRM_FORMAT_XRGB16161616F,
+       DRM_FORMAT_XBGR16161616F,
+       DRM_FORMAT_ARGB16161616F,
+       DRM_FORMAT_ABGR16161616F,
+       DRM_FORMAT_YUYV,
+       DRM_FORMAT_YVYU,
+       DRM_FORMAT_UYVY,
+       DRM_FORMAT_VYUY,
+       DRM_FORMAT_NV12,
+};
+
 static const u64 skl_plane_format_modifiers_noccs[] = {
        I915_FORMAT_MOD_Yf_TILED,
        I915_FORMAT_MOD_Y_TILED,
@@ -1917,6 +1958,10 @@ static bool skl_plane_format_mod_supported(struct 
drm_plane *_plane,
                        return true;
                /* fall through */
        case DRM_FORMAT_C8:
+       case DRM_FORMAT_XBGR16161616F:
+       case DRM_FORMAT_ABGR16161616F:
+       case DRM_FORMAT_XRGB16161616F:
+       case DRM_FORMAT_ARGB16161616F:
                if (modifier == DRM_FORMAT_MOD_LINEAR ||
                    modifier == I915_FORMAT_MOD_X_TILED ||
                    modifier == I915_FORMAT_MOD_Y_TILED)
@@ -2053,11 +2098,21 @@ skl_universal_plane_create(struct drm_i915_private 
*dev_priv,
                plane->update_slave = icl_update_slave;
 
        if (skl_plane_has_planar(dev_priv, pipe, plane_id)) {
-               formats = skl_planar_formats;
-               num_formats = ARRAY_SIZE(skl_planar_formats);
+               if (INTEL_GEN(dev_priv) > 10 && plane_id < PLANE_SPRITE2) {
+                       formats = icl_hdr_planar_formats;
+                       num_formats = ARRAY_SIZE(icl_hdr_planar_formats);
+               } else {
+                       formats = skl_planar_formats;
+                       num_formats = ARRAY_SIZE(skl_planar_formats);
+               }
        } else {
-               formats = skl_plane_formats;
-               num_formats = ARRAY_SIZE(skl_plane_formats);
+               if (INTEL_GEN(dev_priv) > 10 && plane_id < PLANE_SPRITE2) {
+                       formats = icl_hdr_plane_formats;
+                       num_formats = ARRAY_SIZE(icl_hdr_plane_formats);
+               } else {
+                       formats = skl_plane_formats;
+                       num_formats = ARRAY_SIZE(skl_plane_formats);
+               }
        }
 
        plane->has_ccs = skl_plane_has_ccs(dev_priv, pipe, plane_id);
-- 
2.7.4

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