Universal planes have changed a bit the register organization.

Signed-off-by: Damien Lespiau <damien.lesp...@intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 108 ++++++++++++++++++++++++++++++++---
 1 file changed, 101 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 02b2a97..33e8112 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2314,6 +2314,32 @@ static int i9xx_format_to_fourcc(int format)
        }
 }
 
+static int skl_format_to_fourcc(int format, bool rgb_order, bool alpha)
+{
+       switch (format) {
+       case PLANE_CTL_FORMAT_RGB_565:
+               return DRM_FORMAT_RGB565;
+       default:
+       case PLANE_CTL_FORMAT_XRGB_8888:
+               if (rgb_order) {
+                       if (alpha)
+                               return DRM_FORMAT_ABGR8888;
+                       else
+                               return DRM_FORMAT_XBGR8888;
+               } else {
+                       if (alpha)
+                               return DRM_FORMAT_ARGB8888;
+                       else
+                               return DRM_FORMAT_XRGB8888;
+               }
+       case PLANE_CTL_FORMAT_XRGB_2101010:
+               if (rgb_order)
+                       return DRM_FORMAT_XBGR2101010;
+               else
+                       return DRM_FORMAT_XRGB2101010;
+       }
+}
+
 static bool intel_alloc_plane_obj(struct intel_crtc *crtc,
                                  struct intel_plane_config *plane_config)
 {
@@ -7456,6 +7482,69 @@ static void ironlake_get_fdi_m_n_config(struct 
intel_crtc *crtc,
                                     &pipe_config->fdi_m_n, NULL);
 }
 
+static void skylake_get_plane_config(struct intel_crtc *crtc,
+                                     struct intel_plane_config *plane_config)
+{
+       struct drm_device *dev = crtc->base.dev;
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       u32 val, base, offset, stride_mult;
+       int pipe = crtc->pipe;
+       int fourcc, pixel_format;
+       int aligned_height;
+       struct drm_framebuffer *fb;
+
+       fb = kzalloc(sizeof(struct intel_framebuffer), GFP_KERNEL);
+       if (!fb) {
+               DRM_DEBUG_KMS("failed to alloc fb\n");
+               return;
+       }
+
+       val = I915_READ(PLANE_CTL(pipe, 0));
+       if (val & PLANE_CTL_TILED_MASK)
+               plane_config->tiling = I915_TILING_X;
+
+       pixel_format = val & PLANE_CTL_FORMAT_MASK;
+       fourcc = skl_format_to_fourcc(pixel_format,
+                                     val & PLANE_CTL_ORDER_RGBX,
+                                     val & PLANE_CTL_ALPHA_MASK);
+       fb->pixel_format = fourcc;
+       fb->bits_per_pixel = drm_format_plane_cpp(fourcc, 0) * 8;
+
+       base = I915_READ(PLANE_SURF(pipe, 0)) & 0xfffff000;
+       plane_config->base = base;
+
+       offset = I915_READ(PLANE_OFFSET(pipe, 0));
+
+       val = I915_READ(PIPESRC(pipe));
+       fb->width = ((val >> 16) & 0xfff) + 1;
+       fb->height = ((val >> 0) & 0xfff) + 1;
+
+       val = I915_READ(PLANE_STRIDE(pipe, 0));
+       switch (plane_config->tiling) {
+       case I915_TILING_NONE:
+               stride_mult = 64;
+               break;
+       case I915_TILING_X:
+               stride_mult = 512;
+               break;
+       default:
+               BUG();
+       }
+       fb->pitches[0] = (val & 0x3ff) * stride_mult;
+
+       aligned_height = intel_fb_align_height(dev, fb->height,
+                                              plane_config->tiling);
+
+       plane_config->size = ALIGN(fb->pitches[0] * aligned_height, PAGE_SIZE);
+
+       DRM_DEBUG_KMS("pipe %c with fb: size=%dx%d@%d, offset=%x, pitch %d, 
size 0x%x\n",
+                     pipe_name(pipe), fb->width, fb->height,
+                     fb->bits_per_pixel, base, fb->pitches[0],
+                     plane_config->size);
+
+       crtc->base.primary->fb = fb;
+}
+
 static void ironlake_get_pfit_config(struct intel_crtc *crtc,
                                     struct intel_crtc_config *pipe_config)
 {
@@ -12336,19 +12425,24 @@ static void intel_init_display(struct drm_device *dev)
        else
                dev_priv->display.find_dpll = i9xx_find_best_dpll;
 
-       if (HAS_DDI(dev)) {
+       if (INTEL_INFO(dev)->gen >= 9) {
+               dev_priv->display.get_pipe_config = haswell_get_pipe_config;
+               dev_priv->display.get_plane_config = skylake_get_plane_config;
+               dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
+               dev_priv->display.crtc_enable = haswell_crtc_enable;
+               dev_priv->display.crtc_disable = haswell_crtc_disable;
+               dev_priv->display.off = ironlake_crtc_off;
+               dev_priv->display.update_primary_plane =
+                       skylake_update_primary_plane;
+       } else if (HAS_DDI(dev)) {
                dev_priv->display.get_pipe_config = haswell_get_pipe_config;
                dev_priv->display.get_plane_config = ironlake_get_plane_config;
                dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
                dev_priv->display.crtc_enable = haswell_crtc_enable;
                dev_priv->display.crtc_disable = haswell_crtc_disable;
                dev_priv->display.off = ironlake_crtc_off;
-               if (INTEL_INFO(dev)->gen >= 9)
-                       dev_priv->display.update_primary_plane =
-                               skylake_update_primary_plane;
-               else
-                       dev_priv->display.update_primary_plane =
-                               ironlake_update_primary_plane;
+               dev_priv->display.update_primary_plane =
+                       ironlake_update_primary_plane;
        } else if (HAS_PCH_SPLIT(dev)) {
                dev_priv->display.get_pipe_config = ironlake_get_pipe_config;
                dev_priv->display.get_plane_config = ironlake_get_plane_config;
-- 
1.8.3.1

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