int qxl_garbage_collect(struct qxl_device *qdev)
{
struct qxl_release *release;
uint64_t id, next_id;
int i = 0;
int ret;
union qxl_release_info *info;
while (qxl_ring_pop(qdev->release_ring, &id)) {
QXL_INFO(qdev, "popped %lld\n", id);
while (id) {
release = qxl_release_from_id_locked(qdev, id);
if (release == NULL)
break;
ret = qxl_release_reserve(qdev, release, false);
if (ret) {
qxl_io_log(qdev, "failed to reserve release on garbage collect %lld\n", id);
DRM_ERROR("failed to reserve release %lld\n", id);
}
info = qxl_release_map(qdev, release);
next_id = info->next;
qxl_release_unmap(qdev, release, info);
qxl_release_unreserve(qdev, release);
QXL_INFO(qdev, "popped %lld, next %lld\n", id,
next_id);
switch (release->type) {
case QXL_RELEASE_DRAWABLE:
case QXL_RELEASE_SURFACE_CMD:
case QXL_RELEASE_CURSOR_CMD:
break;
default:
DRM_ERROR("unexpected release type\n");
break;
}
id = next_id;
qxl_release_free(qdev, release);
++i;
}
}
QXL_INFO(qdev, "%s: %lld\n", __func__, i);
return i;
}
int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct drm_file *file_priv;
struct qxl_device *qdev;
int r;
if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) {
pr_info("%s: vma->vm_pgoff (%ld) < DRM_FILE_PAGE_OFFSET\n",
__func__, vma->vm_pgoff);
return -EINVAL;
}
file_priv = filp->private_data;
qdev = file_priv->minor->dev->dev_private;
if (qdev == NULL) {
DRM_ERROR(
"filp->private_data->minor->dev->dev_private == NULL\n");
return -EINVAL;
}
QXL_INFO(qdev, "%s: filp->private_data = 0x%p, vma->vm_pgoff = %lx\n",
__func__, filp->private_data, vma->vm_pgoff);
r = ttm_bo_mmap(filp, vma, &qdev->mman.bdev);
if (unlikely(r != 0))
return r;
if (unlikely(ttm_vm_ops == NULL)) {
ttm_vm_ops = vma->vm_ops;
qxl_ttm_vm_ops = *ttm_vm_ops;
qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
}
vma->vm_ops = &qxl_ttm_vm_ops;
return 0;
}
void qxl_io_create_primary(struct qxl_device *qdev, unsigned width,
unsigned height, unsigned offset, struct qxl_bo *bo)
{
struct qxl_surface_create *create;
QXL_INFO(qdev, "%s: qdev %p, ram_header %p\n", __func__, qdev,
qdev->ram_header);
create = &qdev->ram_header->create_surface;
create->format = bo->surf.format;
create->width = width;
create->height = height;
create->stride = bo->surf.stride;
create->mem = qxl_bo_physical_address(qdev, bo, offset);
QXL_INFO(qdev, "%s: mem = %llx, from %p\n", __func__, create->mem,
bo->kptr);
create->flags = QXL_SURF_FLAG_KEEP_DATA;
create->type = QXL_SURF_TYPE_PRIMARY;
wait_for_io_cmd(qdev, 0, QXL_IO_CREATE_PRIMARY_ASYNC);
}
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;
}
void qxl_io_memslot_add(struct qxl_device *qdev, uint8_t id)
{
QXL_INFO(qdev, "qxl_memslot_add %d\n", id);
wait_for_io_cmd(qdev, id, QXL_IO_MEMSLOT_ADD_ASYNC);
}
