This should allow BIOS fb inheritance to work on ILK+ machines too. Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_display.c | 92 ++++++++++++++++++++++++++++++++++ 1 file changed, 92 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 2eb1108..f93ea6e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6571,6 +6571,96 @@ static void ironlake_get_pfit_config(struct intel_crtc *crtc, } } +static void ironlake_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; + struct drm_i915_gem_object *obj = NULL; + struct drm_mode_fb_cmd2 mode_cmd = { 0 }; + u32 val, base, offset; + int pipe = crtc->pipe, plane = crtc->plane; + int fourcc, pixel_format; + int aligned_height; + + plane_config->fb = kzalloc(sizeof(*plane_config->fb), GFP_KERNEL); + if (!plane_config->fb) { + DRM_DEBUG_KMS("failed to alloc fb\n"); + return; + } + + val = I915_READ(DSPCNTR(plane)); + + if (INTEL_INFO(dev)->gen >= 4) + if (val & DISPPLANE_TILED) + plane_config->tiled = true; + + pixel_format = val & DISPPLANE_PIXFORMAT_MASK; + fourcc = intel_format_to_fourcc(pixel_format); + plane_config->fb->base.pixel_format = fourcc; + plane_config->fb->base.bits_per_pixel = + drm_format_plane_cpp(fourcc, 0) * 8; + + base = I915_READ(DSPSURF(plane)) & 0xfffff000; + if (IS_HASWELL(dev) || IS_BROADWELL(dev)) { + offset = I915_READ(DSPOFFSET(plane)); + } else { + if (plane_config->tiled) + offset = I915_READ(DSPTILEOFF(plane)); + else + offset = I915_READ(DSPLINOFF(plane)); + } + + val = I915_READ(PIPESRC(pipe)); + plane_config->fb->base.width = ((val >> 16) & 0xfff) + 1; + plane_config->fb->base.height = ((val >> 0) & 0xfff) + 1; + + val = I915_READ(DSPSTRIDE(pipe)); + plane_config->fb->base.pitches[0] = val & 0xffffff80; + + aligned_height = intel_align_height(dev, plane_config->fb->base.height, + plane_config->tiled); + + plane_config->size = ALIGN(plane_config->fb->base.pitches[0] * + aligned_height, PAGE_SIZE); + + DRM_DEBUG_KMS("pipe/plane %d/%d with fb: size=%dx%d@%d, offset=%x, pitch %d, size 0x%x\n", + pipe, plane, plane_config->fb->base.width, + plane_config->fb->base.height, + plane_config->fb->base.bits_per_pixel, base, + plane_config->fb->base.pitches[0], + plane_config->size); + + /* + * If the fb is shared between multiple heads, we'll just get the + * first one. + */ + obj = i915_gem_object_create_stolen_for_preallocated(dev, base, base, + plane_config->size); + if (!obj) + return; + + mode_cmd.pixel_format = fourcc; + mode_cmd.width = plane_config->fb->base.width; + mode_cmd.height = plane_config->fb->base.height; + mode_cmd.pitches[0] = plane_config->fb->base.pitches[0]; + + mutex_lock(&dev->struct_mutex); + + if (intel_framebuffer_init(dev, plane_config->fb, &mode_cmd, obj)) { + DRM_DEBUG_KMS("intel fb init failed\n"); + goto out_unref_obj; + } + + mutex_unlock(&dev->struct_mutex); + DRM_DEBUG_KMS("plane fb obj %p\n", plane_config->fb->obj); + return; + +out_unref_obj: + drm_gem_object_unreference(&obj->base); + mutex_unlock(&dev->struct_mutex); +} + static bool ironlake_get_pipe_config(struct intel_crtc *crtc, struct intel_crtc_config *pipe_config) { @@ -10833,6 +10923,7 @@ static void intel_init_display(struct drm_device *dev) 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; @@ -10840,6 +10931,7 @@ static void intel_init_display(struct drm_device *dev) dev_priv->display.update_plane = ironlake_update_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; dev_priv->display.crtc_mode_set = ironlake_crtc_mode_set; dev_priv->display.crtc_enable = ironlake_crtc_enable; dev_priv->display.crtc_disable = ironlake_crtc_disable; -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx