static void udl_fbdev_destroy(struct drm_device *dev,
struct udl_fbdev *ufbdev)
{
drm_fb_helper_unregister_fbi(&ufbdev->helper);
drm_fb_helper_release_fbi(&ufbdev->helper);
drm_fb_helper_fini(&ufbdev->helper);
drm_framebuffer_unregister_private(&ufbdev->ufb.base);
drm_framebuffer_cleanup(&ufbdev->ufb.base);
drm_gem_object_unreference_unlocked(&ufbdev->ufb.obj->base);
}
static int virtio_gpu_fbdev_destroy(struct drm_device *dev,
struct virtio_gpu_fbdev *vgfbdev)
{
struct virtio_gpu_framebuffer *vgfb = &vgfbdev->vgfb;
drm_fb_helper_unregister_fbi(&vgfbdev->helper);
drm_fb_helper_release_fbi(&vgfbdev->helper);
if (vgfb->obj)
vgfb->obj = NULL;
drm_fb_helper_fini(&vgfbdev->helper);
drm_framebuffer_cleanup(&vgfb->base);
return 0;
}
static int qxl_fbdev_destroy(struct drm_device *dev, struct qxl_fbdev *qfbdev)
{
struct qxl_framebuffer *qfb = &qfbdev->qfb;
drm_fb_helper_unregister_fbi(&qfbdev->helper);
drm_fb_helper_release_fbi(&qfbdev->helper);
if (qfb->obj) {
qxlfb_destroy_pinned_object(qfb->obj);
qfb->obj = NULL;
}
drm_fb_helper_fini(&qfbdev->helper);
vfree(qfbdev->shadow);
drm_framebuffer_cleanup(&qfb->base);
return 0;
}
void armada_fbdev_fini(struct drm_device *dev)
{
struct armada_private *priv = dev->dev_private;
struct drm_fb_helper *fbh = priv->fbdev;
if (fbh) {
drm_fb_helper_unregister_fbi(fbh);
drm_fb_helper_release_fbi(fbh);
drm_fb_helper_fini(fbh);
if (fbh->fb)
fbh->fb->funcs->destroy(fbh->fb);
priv->fbdev = NULL;
}
}
static int bochs_fbdev_destroy(struct bochs_device *bochs)
{
struct bochs_framebuffer *gfb = &bochs->fb.gfb;
DRM_DEBUG_DRIVER("\n");
drm_fb_helper_unregister_fbi(&bochs->fb.helper);
drm_fb_helper_release_fbi(&bochs->fb.helper);
if (gfb->obj) {
drm_gem_object_unreference_unlocked(gfb->obj);
gfb->obj = NULL;
}
drm_fb_helper_fini(&bochs->fb.helper);
drm_framebuffer_unregister_private(&gfb->base);
drm_framebuffer_cleanup(&gfb->base);
return 0;
}
int armada_fbdev_init(struct drm_device *dev)
{
struct armada_private *priv = dev->dev_private;
struct drm_fb_helper *fbh;
int ret;
fbh = devm_kzalloc(dev->dev, sizeof(*fbh), GFP_KERNEL);
if (!fbh)
return -ENOMEM;
priv->fbdev = fbh;
drm_fb_helper_prepare(dev, fbh, &armada_fb_helper_funcs);
ret = drm_fb_helper_init(dev, fbh, 1, 1);
if (ret) {
DRM_ERROR("failed to initialize drm fb helper\n");
goto err_fb_helper;
}
ret = drm_fb_helper_single_add_all_connectors(fbh);
if (ret) {
DRM_ERROR("failed to add fb connectors\n");
goto err_fb_setup;
}
ret = drm_fb_helper_initial_config(fbh, 32);
if (ret) {
DRM_ERROR("failed to set initial config\n");
goto err_fb_setup;
}
return 0;
err_fb_setup:
drm_fb_helper_release_fbi(fbh);
drm_fb_helper_fini(fbh);
err_fb_helper:
priv->fbdev = NULL;
return ret;
}
static int qxlfb_create(struct qxl_fbdev *qfbdev,
struct drm_fb_helper_surface_size *sizes)
{
struct qxl_device *qdev = qfbdev->qdev;
struct fb_info *info;
struct drm_framebuffer *fb = NULL;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_gem_object *gobj = NULL;
struct qxl_bo *qbo = NULL;
int ret;
int size;
int bpp = sizes->surface_bpp;
int depth = sizes->surface_depth;
void *shadow;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 1) / 8), 64);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
ret = qxlfb_create_pinned_object(qfbdev, &mode_cmd, &gobj);
if (ret < 0)
return ret;
qbo = gem_to_qxl_bo(gobj);
QXL_INFO(qdev, "%s: %dx%d %d\n", __func__, mode_cmd.width,
mode_cmd.height, mode_cmd.pitches[0]);
shadow = vmalloc(mode_cmd.pitches[0] * mode_cmd.height);
/* TODO: what's the usual response to memory allocation errors? */
BUG_ON(!shadow);
QXL_INFO(qdev,
"surface0 at gpu offset %lld, mmap_offset %lld (virt %p, shadow %p)\n",
qxl_bo_gpu_offset(qbo),
qxl_bo_mmap_offset(qbo),
qbo->kptr,
shadow);
size = mode_cmd.pitches[0] * mode_cmd.height;
info = drm_fb_helper_alloc_fbi(&qfbdev->helper);
if (IS_ERR(info)) {
ret = PTR_ERR(info);
goto out_unref;
}
info->par = qfbdev;
qxl_framebuffer_init(qdev->ddev, &qfbdev->qfb, &mode_cmd, gobj,
&qxlfb_fb_funcs);
fb = &qfbdev->qfb.base;
/* setup helper with fb data */
qfbdev->helper.fb = fb;
qfbdev->shadow = shadow;
strcpy(info->fix.id, "qxldrmfb");
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;
info->fbops = &qxlfb_ops;
/*
* TODO: using gobj->size in various places in this function. Not sure
* what the difference between the different sizes is.
*/
info->fix.smem_start = qdev->vram_base; /* TODO - correct? */
info->fix.smem_len = gobj->size;
info->screen_base = qfbdev->shadow;
info->screen_size = gobj->size;
drm_fb_helper_fill_var(info, &qfbdev->helper, sizes->fb_width,
sizes->fb_height);
/* setup aperture base/size for vesafb takeover */
info->apertures->ranges[0].base = qdev->ddev->mode_config.fb_base;
info->apertures->ranges[0].size = qdev->vram_size;
info->fix.mmio_start = 0;
info->fix.mmio_len = 0;
if (info->screen_base == NULL) {
ret = -ENOSPC;
goto out_destroy_fbi;
}
info->fbdefio = &qxl_defio;
fb_deferred_io_init(info);
qdev->fbdev_info = info;
qdev->fbdev_qfb = &qfbdev->qfb;
DRM_INFO("fb mappable at 0x%lX, size %lu\n", info->fix.smem_start, (unsigned long)info->screen_size);
DRM_INFO("fb: depth %d, pitch %d, width %d, height %d\n", fb->depth, fb->pitches[0], fb->width, fb->height);
return 0;
out_destroy_fbi:
drm_fb_helper_release_fbi(&qfbdev->helper);
out_unref:
if (qbo) {
ret = qxl_bo_reserve(qbo, false);
if (likely(ret == 0)) {
qxl_bo_kunmap(qbo);
qxl_bo_unpin(qbo);
qxl_bo_unreserve(qbo);
}
}
if (fb && ret) {
drm_gem_object_unreference_unlocked(gobj);
drm_framebuffer_cleanup(fb);
kfree(fb);
}
drm_gem_object_unreference_unlocked(gobj);
return ret;
}
static int udlfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct udl_fbdev *ufbdev =
container_of(helper, struct udl_fbdev, helper);
struct drm_device *dev = ufbdev->helper.dev;
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd;
struct udl_gem_object *obj;
uint32_t size;
int ret = 0;
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
size = ALIGN(size, PAGE_SIZE);
obj = udl_gem_alloc_object(dev, size);
if (!obj)
goto out;
ret = udl_gem_vmap(obj);
if (ret) {
DRM_ERROR("failed to vmap fb\n");
goto out_gfree;
}
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info)) {
ret = PTR_ERR(info);
goto out_gfree;
}
info->par = ufbdev;
ret = udl_framebuffer_init(dev, &ufbdev->ufb, &mode_cmd, obj);
if (ret)
goto out_destroy_fbi;
fb = &ufbdev->ufb.base;
ufbdev->helper.fb = fb;
strcpy(info->fix.id, "udldrmfb");
info->screen_base = ufbdev->ufb.obj->vmapping;
info->fix.smem_len = size;
info->fix.smem_start = (unsigned long)ufbdev->ufb.obj->vmapping;
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &udlfb_ops;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &ufbdev->helper, sizes->fb_width, sizes->fb_height);
DRM_DEBUG_KMS("allocated %dx%d vmal %p\n",
fb->width, fb->height,
ufbdev->ufb.obj->vmapping);
return ret;
out_destroy_fbi:
drm_fb_helper_release_fbi(helper);
out_gfree:
drm_gem_object_unreference_unlocked(&ufbdev->ufb.obj->base);
out:
return ret;
}
static int bochsfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct bochs_device *bochs =
container_of(helper, struct bochs_device, fb.helper);
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_gem_object *gobj = NULL;
struct bochs_bo *bo = NULL;
int size, ret;
if (sizes->surface_bpp != 32)
return -EINVAL;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
size = mode_cmd.pitches[0] * mode_cmd.height;
/* alloc, pin & map bo */
ret = bochsfb_create_object(bochs, &mode_cmd, &gobj);
if (ret) {
DRM_ERROR("failed to create fbcon backing object %d\n", ret);
return ret;
}
bo = gem_to_bochs_bo(gobj);
ret = ttm_bo_reserve(&bo->bo, true, false, false, NULL);
if (ret)
return ret;
ret = bochs_bo_pin(bo, TTM_PL_FLAG_VRAM, NULL);
if (ret) {
DRM_ERROR("failed to pin fbcon\n");
ttm_bo_unreserve(&bo->bo);
return ret;
}
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages,
&bo->kmap);
if (ret) {
DRM_ERROR("failed to kmap fbcon\n");
ttm_bo_unreserve(&bo->bo);
return ret;
}
ttm_bo_unreserve(&bo->bo);
/* init fb device */
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info))
return PTR_ERR(info);
info->par = &bochs->fb.helper;
ret = bochs_framebuffer_init(bochs->dev, &bochs->fb.gfb, &mode_cmd, gobj);
if (ret) {
drm_fb_helper_release_fbi(helper);
return ret;
}
bochs->fb.size = size;
/* setup helper */
fb = &bochs->fb.gfb.base;
bochs->fb.helper.fb = fb;
strcpy(info->fix.id, "bochsdrmfb");
info->flags = FBINFO_DEFAULT;
info->fbops = &bochsfb_ops;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &bochs->fb.helper, sizes->fb_width,
sizes->fb_height);
info->screen_base = bo->kmap.virtual;
info->screen_size = size;
drm_vma_offset_remove(&bo->bo.bdev->vma_manager, &bo->bo.vma_node);
info->fix.smem_start = 0;
info->fix.smem_len = size;
return 0;
}
static int virtio_gpufb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct virtio_gpu_fbdev *vfbdev =
container_of(helper, struct virtio_gpu_fbdev, helper);
struct drm_device *dev = helper->dev;
struct virtio_gpu_device *vgdev = dev->dev_private;
struct fb_info *info;
struct drm_framebuffer *fb;
struct drm_mode_fb_cmd2 mode_cmd = {};
struct virtio_gpu_object *obj;
uint32_t resid, format, size;
int ret;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
mode_cmd.pitches[0] = mode_cmd.width * 4;
mode_cmd.pixel_format = drm_mode_legacy_fb_format(32, 24);
switch (mode_cmd.pixel_format) {
#ifdef __BIG_ENDIAN
case DRM_FORMAT_XRGB8888:
format = VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM;
break;
case DRM_FORMAT_ARGB8888:
format = VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM;
break;
case DRM_FORMAT_BGRX8888:
format = VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM;
break;
case DRM_FORMAT_BGRA8888:
format = VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM;
break;
case DRM_FORMAT_RGBX8888:
format = VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM;
break;
case DRM_FORMAT_RGBA8888:
format = VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM;
break;
case DRM_FORMAT_XBGR8888:
format = VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM;
break;
case DRM_FORMAT_ABGR8888:
format = VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM;
break;
#else
case DRM_FORMAT_XRGB8888:
format = VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM;
break;
case DRM_FORMAT_ARGB8888:
format = VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM;
break;
case DRM_FORMAT_BGRX8888:
format = VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM;
break;
case DRM_FORMAT_BGRA8888:
format = VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM;
break;
case DRM_FORMAT_RGBX8888:
format = VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM;
break;
case DRM_FORMAT_RGBA8888:
format = VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM;
break;
case DRM_FORMAT_XBGR8888:
format = VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM;
break;
case DRM_FORMAT_ABGR8888:
format = VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM;
break;
#endif
default:
DRM_ERROR("failed to find virtio gpu format for %d\n",
mode_cmd.pixel_format);
return -EINVAL;
}
size = mode_cmd.pitches[0] * mode_cmd.height;
obj = virtio_gpu_alloc_object(dev, size, false, true);
if (IS_ERR(obj))
return PTR_ERR(obj);
virtio_gpu_resource_id_get(vgdev, &resid);
virtio_gpu_cmd_create_resource(vgdev, resid, format,
mode_cmd.width, mode_cmd.height);
ret = virtio_gpu_vmap_fb(vgdev, obj);
if (ret) {
DRM_ERROR("failed to vmap fb %d\n", ret);
goto err_obj_vmap;
}
/* attach the object to the resource */
ret = virtio_gpu_object_attach(vgdev, obj, resid, NULL);
if (ret)
goto err_obj_attach;
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info)) {
ret = PTR_ERR(info);
goto err_fb_alloc;
}
info->par = helper;
ret = virtio_gpu_framebuffer_init(dev, &vfbdev->vgfb,
&mode_cmd, &obj->gem_base);
if (ret)
goto err_fb_init;
fb = &vfbdev->vgfb.base;
vfbdev->helper.fb = fb;
strcpy(info->fix.id, "virtiodrmfb");
info->flags = FBINFO_DEFAULT;
info->fbops = &virtio_gpufb_ops;
info->pixmap.flags = FB_PIXMAP_SYSTEM;
info->screen_base = obj->vmap;
info->screen_size = obj->gem_base.size;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
drm_fb_helper_fill_var(info, &vfbdev->helper,
sizes->fb_width, sizes->fb_height);
info->fix.mmio_start = 0;
info->fix.mmio_len = 0;
return 0;
err_fb_init:
drm_fb_helper_release_fbi(helper);
err_fb_alloc:
virtio_gpu_cmd_resource_inval_backing(vgdev, resid);
err_obj_attach:
err_obj_vmap:
virtio_gpu_gem_free_object(&obj->gem_base);
return ret;
}
static int intelfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct intel_fbdev *ifbdev =
container_of(helper, struct intel_fbdev, helper);
struct intel_framebuffer *intel_fb = ifbdev->fb;
struct drm_device *dev = helper->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct pci_dev *pdev = dev_priv->drm.pdev;
struct i915_ggtt *ggtt = &dev_priv->ggtt;
struct fb_info *info;
struct drm_framebuffer *fb;
struct i915_vma *vma;
bool prealloc = false;
void __iomem *vaddr;
int ret;
if (intel_fb &&
(sizes->fb_width > intel_fb->base.width ||
sizes->fb_height > intel_fb->base.height)) {
DRM_DEBUG_KMS("BIOS fb too small (%dx%d), we require (%dx%d),"
" releasing it\n",
intel_fb->base.width, intel_fb->base.height,
sizes->fb_width, sizes->fb_height);
drm_framebuffer_unreference(&intel_fb->base);
intel_fb = ifbdev->fb = NULL;
}
if (!intel_fb || WARN_ON(!intel_fb->obj)) {
DRM_DEBUG_KMS("no BIOS fb, allocating a new one\n");
ret = intelfb_alloc(helper, sizes);
if (ret)
return ret;
intel_fb = ifbdev->fb;
} else {
DRM_DEBUG_KMS("re-using BIOS fb\n");
prealloc = true;
sizes->fb_width = intel_fb->base.width;
sizes->fb_height = intel_fb->base.height;
}
mutex_lock(&dev->struct_mutex);
/* Pin the GGTT vma for our access via info->screen_base.
* This also validates that any existing fb inherited from the
* BIOS is suitable for own access.
*/
vma = intel_pin_and_fence_fb_obj(&ifbdev->fb->base, DRM_ROTATE_0);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto out_unlock;
}
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info)) {
DRM_ERROR("Failed to allocate fb_info\n");
ret = PTR_ERR(info);
goto out_unpin;
}
info->par = helper;
fb = &ifbdev->fb->base;
ifbdev->helper.fb = fb;
strcpy(info->fix.id, "inteldrmfb");
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &intelfb_ops;
/* setup aperture base/size for vesafb takeover */
info->apertures->ranges[0].base = dev->mode_config.fb_base;
info->apertures->ranges[0].size = ggtt->mappable_end;
info->fix.smem_start = dev->mode_config.fb_base + i915_ggtt_offset(vma);
info->fix.smem_len = vma->node.size;
vaddr = i915_vma_pin_iomap(vma);
if (IS_ERR(vaddr)) {
DRM_ERROR("Failed to remap framebuffer into virtual memory\n");
ret = PTR_ERR(vaddr);
goto out_destroy_fbi;
}
info->screen_base = vaddr;
info->screen_size = vma->node.size;
/* This driver doesn't need a VT switch to restore the mode on resume */
info->skip_vt_switch = true;
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
/* If the object is shmemfs backed, it will have given us zeroed pages.
* If the object is stolen however, it will be full of whatever
* garbage was left in there.
*/
if (intel_fb->obj->stolen && !prealloc)
memset_io(info->screen_base, 0, info->screen_size);
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x\n",
fb->width, fb->height, i915_ggtt_offset(vma));
ifbdev->vma = vma;
mutex_unlock(&dev->struct_mutex);
vga_switcheroo_client_fb_set(pdev, info);
return 0;
out_destroy_fbi:
drm_fb_helper_release_fbi(helper);
out_unpin:
intel_unpin_fb_obj(&ifbdev->fb->base, DRM_ROTATE_0);
out_unlock:
mutex_unlock(&dev->struct_mutex);
return ret;
}