Merge branch 'drm-fbdev-cleanup' into drm-core-next
[pandora-kernel.git] / drivers / gpu / drm / i915 / intel_fb.c
index 8a0b3bc..34ad033 100644 (file)
 #include "i915_drm.h"
 #include "i915_drv.h"
 
-struct intelfb_par {
+struct intel_fbdev {
        struct drm_fb_helper helper;
-       struct intel_framebuffer *intel_fb;
+       struct intel_framebuffer ifb;
+       struct list_head fbdev_list;
        struct drm_display_mode *our_mode;
 };
 
@@ -54,7 +55,6 @@ static struct fb_ops intelfb_ops = {
        .owner = THIS_MODULE,
        .fb_check_var = drm_fb_helper_check_var,
        .fb_set_par = drm_fb_helper_set_par,
-       .fb_setcolreg = drm_fb_helper_setcolreg,
        .fb_fillrect = cfb_fillrect,
        .fb_copyarea = cfb_copyarea,
        .fb_imageblit = cfb_imageblit,
@@ -63,62 +63,12 @@ static struct fb_ops intelfb_ops = {
        .fb_setcmap = drm_fb_helper_setcmap,
 };
 
-static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
-       .gamma_set = intel_crtc_fb_gamma_set,
-       .gamma_get = intel_crtc_fb_gamma_get,
-};
-
-
-/**
- * Currently it is assumed that the old framebuffer is reused.
- *
- * LOCKING
- * caller should hold the mode config lock.
- *
- */
-int intelfb_resize(struct drm_device *dev, struct drm_crtc *crtc)
-{
-       struct fb_info *info;
-       struct drm_framebuffer *fb;
-       struct drm_display_mode *mode = crtc->desired_mode;
-
-       fb = crtc->fb;
-       if (!fb)
-               return 1;
-
-       info = fb->fbdev;
-       if (!info)
-               return 1;
-
-       if (!mode)
-               return 1;
-
-       info->var.xres = mode->hdisplay;
-       info->var.right_margin = mode->hsync_start - mode->hdisplay;
-       info->var.hsync_len = mode->hsync_end - mode->hsync_start;
-       info->var.left_margin = mode->htotal - mode->hsync_end;
-       info->var.yres = mode->vdisplay;
-       info->var.lower_margin = mode->vsync_start - mode->vdisplay;
-       info->var.vsync_len = mode->vsync_end - mode->vsync_start;
-       info->var.upper_margin = mode->vtotal - mode->vsync_end;
-       info->var.pixclock = 10000000 / mode->htotal * 1000 / mode->vtotal * 100;
-       /* avoid overflow */
-       info->var.pixclock = info->var.pixclock * 1000 / mode->vrefresh;
-
-       return 0;
-}
-EXPORT_SYMBOL(intelfb_resize);
-
-static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
-                         uint32_t fb_height, uint32_t surface_width,
-                         uint32_t surface_height,
-                         uint32_t surface_depth, uint32_t surface_bpp,
-                         struct drm_framebuffer **fb_p)
+static int intelfb_create(struct intel_fbdev *ifbdev,
+                         struct drm_fb_helper_surface_size *sizes)
 {
+       struct drm_device *dev = ifbdev->helper.dev;
        struct fb_info *info;
-       struct intelfb_par *par;
        struct drm_framebuffer *fb;
-       struct intel_framebuffer *intel_fb;
        struct drm_mode_fb_cmd mode_cmd;
        struct drm_gem_object *fbo = NULL;
        struct drm_i915_gem_object *obj_priv;
@@ -126,15 +76,15 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
        int size, ret, mmio_bar = IS_I9XX(dev) ? 0 : 1;
 
        /* we don't do packed 24bpp */
-       if (surface_bpp == 24)
-               surface_bpp = 32;
+       if (sizes->surface_bpp == 24)
+               sizes->surface_bpp = 32;
 
-       mode_cmd.width = surface_width;
-       mode_cmd.height = surface_height;
+       mode_cmd.width = sizes->surface_width;
+       mode_cmd.height = sizes->surface_height;
 
-       mode_cmd.bpp = surface_bpp;
+       mode_cmd.bpp = sizes->surface_bpp;
        mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64);
-       mode_cmd.depth = surface_depth;
+       mode_cmd.depth = sizes->surface_depth;
 
        size = mode_cmd.pitch * mode_cmd.height;
        size = ALIGN(size, PAGE_SIZE);
@@ -157,39 +107,26 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
        /* Flush everything out, we'll be doing GTT only from now on */
        i915_gem_object_set_to_gtt_domain(fbo, 1);
 
-       ret = intel_framebuffer_create(dev, &mode_cmd, &fb, fbo);
-       if (ret) {
-               DRM_ERROR("failed to allocate fb.\n");
-               goto out_unpin;
-       }
-
-       list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list);
-
-       intel_fb = to_intel_framebuffer(fb);
-       *fb_p = fb;
-
-       info = framebuffer_alloc(sizeof(struct intelfb_par), device);
+       info = framebuffer_alloc(0, device);
        if (!info) {
                ret = -ENOMEM;
                goto out_unpin;
        }
 
-       par = info->par;
+       info->par = ifbdev;
 
-       par->helper.funcs = &intel_fb_helper_funcs;
-       par->helper.dev = dev;
-       ret = drm_fb_helper_init_crtc_count(&par->helper, 2,
-                                           INTELFB_CONN_LIMIT);
-       if (ret)
-               goto out_unref;
+       intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo);
+
+       fb = &ifbdev->ifb.base;
+
+       ifbdev->helper.fb = fb;
+       ifbdev->helper.fbdev = info;
 
        strcpy(info->fix.id, "inteldrmfb");
 
        info->flags = FBINFO_DEFAULT;
-
        info->fbops = &intelfb_ops;
 
-
        /* setup aperture base/size for vesafb takeover */
        info->aperture_base = dev->mode_config.fb_base;
        if (IS_I9XX(dev))
@@ -208,12 +145,18 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
                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);
 
        drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
-       drm_fb_helper_fill_var(info, fb, fb_width, fb_height);
+       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);
@@ -225,14 +168,10 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
        info->pixmap.flags = FB_PIXMAP_SYSTEM;
        info->pixmap.scan_align = 1;
 
-       fb->fbdev = info;
-
-       par->intel_fb = intel_fb;
-
-       /* To allow resizeing without swapping buffers */
        DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
-                       intel_fb->base.width, intel_fb->base.height,
-                       obj_priv->gtt_offset, fbo);
+                     fb->width, fb->height,
+                     obj_priv->gtt_offset, fbo);
+
 
        mutex_unlock(&dev->struct_mutex);
        vga_switcheroo_client_fb_set(dev->pdev, info);
@@ -247,35 +186,86 @@ out:
        return ret;
 }
 
-int intelfb_probe(struct drm_device *dev)
+static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
+                                         struct drm_fb_helper_surface_size *sizes)
 {
+       struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
+       int new_fb = 0;
        int ret;
 
-       DRM_DEBUG_KMS("\n");
-       ret = drm_fb_helper_single_fb_probe(dev, 32, intelfb_create);
-       return ret;
+       if (!helper->fb) {
+               ret = intelfb_create(ifbdev, sizes);
+               if (ret)
+                       return ret;
+               new_fb = 1;
+       }
+       return new_fb;
 }
-EXPORT_SYMBOL(intelfb_probe);
 
-int intelfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
+void intelfb_hotplug(struct drm_device *dev, bool polled)
 {
-       struct fb_info *info;
+       drm_i915_private_t *dev_priv = dev->dev_private;
+       drm_helper_fb_hpd_irq_event(&dev_priv->fbdev->helper);
+}
 
-       if (!fb)
-               return -EINVAL;
+static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
+       .gamma_set = intel_crtc_fb_gamma_set,
+       .gamma_get = intel_crtc_fb_gamma_get,
+       .fb_probe = intel_fb_find_or_create_single,
+};
 
-       info = fb->fbdev;
+int intel_fbdev_destroy(struct drm_device *dev,
+                       struct intel_fbdev *ifbdev)
+{
+       struct fb_info *info;
+       struct intel_framebuffer *ifb = &ifbdev->ifb;
 
-       if (info) {
-               struct intelfb_par *par = info->par;
+       if (ifbdev->helper.fbdev) {
+               info = ifbdev->helper.fbdev;
                unregister_framebuffer(info);
                iounmap(info->screen_base);
-               if (info->par)
-                       drm_fb_helper_free(&par->helper);
+               if (info->cmap.len)
+                       fb_dealloc_cmap(&info->cmap);
                framebuffer_release(info);
        }
 
+       drm_fb_helper_fini(&ifbdev->helper);
+
+       drm_framebuffer_cleanup(&ifb->base);
+       if (ifb->obj)
+               drm_gem_object_unreference_unlocked(ifb->obj);
+
+       return 0;
+}
+
+int intel_fbdev_init(struct drm_device *dev)
+{
+       struct intel_fbdev *ifbdev;
+       drm_i915_private_t *dev_priv = dev->dev_private;
+
+       ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
+       if (!ifbdev)
+               return -ENOMEM;
+
+       dev_priv->fbdev = ifbdev;
+       ifbdev->helper.funcs = &intel_fb_helper_funcs;
+
+       drm_fb_helper_init(dev, &ifbdev->helper, 2,
+                          INTELFB_CONN_LIMIT, false);
+
+       drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
+       drm_fb_helper_initial_config(&ifbdev->helper, 32);
        return 0;
 }
-EXPORT_SYMBOL(intelfb_remove);
+
+void intel_fbdev_fini(struct drm_device *dev)
+{
+       drm_i915_private_t *dev_priv = dev->dev_private;
+       if (!dev_priv->fbdev)
+               return;
+
+       intel_fbdev_destroy(dev, dev_priv->fbdev);
+       kfree(dev_priv->fbdev);
+       dev_priv->fbdev = NULL;
+}
 MODULE_LICENSE("GPL and additional rights");