drm/i915: restore only the mode of this driver on lastclose (v2)

[linux-flexiantxendom0-natty.git] / drivers / gpu / drm / i915 / intel_fb.c

diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 521622b..ec49bae 100644 (file)
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -62,13 +62,13 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
                          struct drm_fb_helper_surface_size *sizes)
 {
        struct drm_device *dev = ifbdev->helper.dev;
+       struct drm_i915_private *dev_priv = dev->dev_private;
        struct fb_info *info;
        struct drm_framebuffer *fb;
        struct drm_mode_fb_cmd mode_cmd;
-       struct drm_gem_object *fbo = NULL;
-       struct drm_i915_gem_object *obj_priv;
+       struct drm_i915_gem_object *obj;
        struct device *device = &dev->pdev->dev;
-       int size, ret, mmio_bar = IS_GEN2(dev) ? 1 : 0;
+       int size, ret;
 
        /* we don't do packed 24bpp */
        if (sizes->surface_bpp == 24)
@@ -78,23 +78,22 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
        mode_cmd.height = sizes->surface_height;
 
        mode_cmd.bpp = sizes->surface_bpp;
-       mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64);
+       mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 64);
        mode_cmd.depth = sizes->surface_depth;
 
        size = mode_cmd.pitch * mode_cmd.height;
        size = ALIGN(size, PAGE_SIZE);
-       fbo = i915_gem_alloc_object(dev, size);
-       if (!fbo) {
+       obj = i915_gem_alloc_object(dev, size);
+       if (!obj) {
                DRM_ERROR("failed to allocate framebuffer\n");
                ret = -ENOMEM;
                goto out;
        }
-       obj_priv = to_intel_bo(fbo);
 
        mutex_lock(&dev->struct_mutex);
 
        /* Flush everything out, we'll be doing GTT only from now on */
-       ret = intel_pin_and_fence_fb_obj(dev, fbo, false);
+       ret = intel_pin_and_fence_fb_obj(dev, obj, false);
        if (ret) {
                DRM_ERROR("failed to pin fb: %d\n", ret);
                goto out_unref;
@@ -108,7 +107,7 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
 
        info->par = ifbdev;
 
-       ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo);
+       ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
        if (ret)
                goto out_unpin;
 
@@ -122,6 +121,11 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
        info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
        info->fbops = &intelfb_ops;
 
+       ret = fb_alloc_cmap(&info->cmap, 256, 0);
+       if (ret) {
+               ret = -ENOMEM;
+               goto out_unpin;
+       }
        /* setup aperture base/size for vesafb takeover */
        info->apertures = alloc_apertures(1);
        if (!info->apertures) {
@@ -129,26 +133,17 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
                goto out_unpin;
        }
        info->apertures->ranges[0].base = dev->mode_config.fb_base;
-       if (!IS_GEN2(dev))
-               info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 2);
-       else
-               info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0);
+       info->apertures->ranges[0].size =
+               dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
 
-       info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset;
+       info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
        info->fix.smem_len = size;
 
-       info->screen_base = ioremap_wc(dev->agp->base + obj_priv->gtt_offset,
-                                      size);
+       info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
        if (!info->screen_base) {
                ret = -ENOSPC;
                goto out_unpin;
        }
-
-       ret = fb_alloc_cmap(&info->cmap, 256, 0);
-       if (ret) {
-               ret = -ENOMEM;
-               goto out_unpin;
-       }
        info->screen_size = size;
 
 //     memset(info->screen_base, 0, size);
@@ -156,10 +151,6 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
        drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
        drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
 
-       /* FIXME: we really shouldn't expose mmio space at all */
-       info->fix.mmio_start = pci_resource_start(dev->pdev, mmio_bar);
-       info->fix.mmio_len = pci_resource_len(dev->pdev, mmio_bar);
-
        info->pixmap.size = 64*1024;
        info->pixmap.buf_align = 8;
        info->pixmap.access_align = 32;
@@ -168,7 +159,7 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
 
        DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
                      fb->width, fb->height,
-                     obj_priv->gtt_offset, fbo);
+                     obj->gtt_offset, obj);
 
 
        mutex_unlock(&dev->struct_mutex);
@@ -176,9 +167,9 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
        return 0;
 
 out_unpin:
-       i915_gem_object_unpin(fbo);
+       i915_gem_object_unpin(obj);
 out_unref:
-       drm_gem_object_unreference(fbo);
+       drm_gem_object_unreference(&obj->base);
        mutex_unlock(&dev->struct_mutex);
 out:
        return ret;
@@ -225,7 +216,7 @@ static void intel_fbdev_destroy(struct drm_device *dev,
 
        drm_framebuffer_cleanup(&ifb->base);
        if (ifb->obj) {
-               drm_gem_object_unreference(ifb->obj);
+               drm_gem_object_unreference_unlocked(&ifb->obj->base);
                ifb->obj = NULL;
        }
 }
@@ -273,3 +264,13 @@ void intel_fb_output_poll_changed(struct drm_device *dev)
        drm_i915_private_t *dev_priv = dev->dev_private;
        drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
 }
+
+void intel_fb_restore_mode(struct drm_device *dev)
+{
+       int ret;
+       drm_i915_private_t *dev_priv = dev->dev_private;
+
+       ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
+       if (ret)
+               DRM_DEBUG("failed to restore crtc mode\n");
+}