/*
* dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's
* are on vram).
* *(dst + dst_off) = qxl_bo_physical_address(src, src_off)
*/
static void
apply_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
{
void *reloc_page;
reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
*(uint64_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = qxl_bo_physical_address(qdev,
info->src_bo,
info->src_offset);
qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
}
/*
* dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's
* are on vram).
* *(dst + dst_off) = qxl_bo_physical_address(src, src_off)
*/
static void
apply_reloc(struct qxl_device *qdev, struct qxl_bo *dst, uint64_t dst_off,
struct qxl_bo *src, uint64_t src_off)
{
void *reloc_page;
reloc_page = qxl_bo_kmap_atomic_page(qdev, dst, dst_off & PAGE_MASK);
*(uint64_t *)(reloc_page + (dst_off & ~PAGE_MASK)) = qxl_bo_physical_address(qdev,
src, src_off);
qxl_bo_kunmap_atomic_page(qdev, dst, reloc_page);
}
static void
apply_surf_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
{
uint32_t id = 0;
void *reloc_page;
if (info->src_bo && !info->src_bo->is_primary)
id = info->src_bo->surface_id;
reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
*(uint32_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = id;
qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
}
static void
apply_surf_reloc(struct qxl_device *qdev, struct qxl_bo *dst, uint64_t dst_off,
struct qxl_bo *src)
{
uint32_t id = 0;
void *reloc_page;
if (src && !src->is_primary)
id = src->surface_id;
reloc_page = qxl_bo_kmap_atomic_page(qdev, dst, dst_off & PAGE_MASK);
*(uint32_t *)(reloc_page + (dst_off & ~PAGE_MASK)) = id;
qxl_bo_kunmap_atomic_page(qdev, dst, reloc_page);
}
/*
* Usage of execbuffer:
* Relocations need to take into account the full QXLDrawable size.
* However, the command as passed from user space must *not* contain the initial
* QXLReleaseInfo struct (first XXX bytes)
*/
static int qxl_process_single_command(struct qxl_device *qdev,
struct drm_qxl_command *cmd,
struct drm_file *file_priv)
{
struct qxl_reloc_info *reloc_info;
int release_type;
struct qxl_release *release;
struct qxl_bo *cmd_bo;
void *fb_cmd;
int i, ret, num_relocs;
int unwritten;
switch (cmd->type) {
case QXL_CMD_DRAW:
release_type = QXL_RELEASE_DRAWABLE;
break;
case QXL_CMD_SURFACE:
case QXL_CMD_CURSOR:
default:
DRM_DEBUG("Only draw commands in execbuffers\n");
return -EINVAL;
break;
}
if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info))
return -EINVAL;
if (!access_ok(VERIFY_READ,
(void *)(unsigned long)cmd->command,
cmd->command_size))
return -EFAULT;
reloc_info = kmalloc_array(cmd->relocs_num,
sizeof(struct qxl_reloc_info), GFP_KERNEL);
if (!reloc_info)
return -ENOMEM;
ret = qxl_alloc_release_reserved(qdev,
sizeof(union qxl_release_info) +
cmd->command_size,
release_type,
&release,
&cmd_bo);
if (ret)
goto out_free_reloc;
/* TODO copy slow path code from i915 */
fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size);
{
struct qxl_drawable *draw = fb_cmd;
draw->mm_time = qdev->rom->mm_clock;
}
qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd);
if (unwritten) {
DRM_ERROR("got unwritten %d\n", unwritten);
ret = -EFAULT;
goto out_free_release;
}
/* fill out reloc info structs */
num_relocs = 0;
for (i = 0; i < cmd->relocs_num; ++i) {
struct drm_qxl_reloc reloc;
if (copy_from_user(&reloc,
&((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i],
sizeof(reloc))) {
ret = -EFAULT;
goto out_free_bos;
}
/* add the bos to the list of bos to validate -
need to validate first then process relocs? */
if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) {
DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type);
ret = -EINVAL;
goto out_free_bos;
}
reloc_info[i].type = reloc.reloc_type;
if (reloc.dst_handle) {
ret = qxlhw_handle_to_bo(file_priv, reloc.dst_handle, release,
&reloc_info[i].dst_bo);
if (ret)
goto out_free_bos;
reloc_info[i].dst_offset = reloc.dst_offset;
} else {
reloc_info[i].dst_bo = cmd_bo;
reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset;
}
num_relocs++;
/* reserve and validate the reloc dst bo */
if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {
ret = qxlhw_handle_to_bo(file_priv, reloc.src_handle, release,
&reloc_info[i].src_bo);
if (ret)
goto out_free_bos;
reloc_info[i].src_offset = reloc.src_offset;
} else {
reloc_info[i].src_bo = NULL;
reloc_info[i].src_offset = 0;
}
}
/* validate all buffers */
ret = qxl_release_reserve_list(release, false);
if (ret)
goto out_free_bos;
for (i = 0; i < cmd->relocs_num; ++i) {
if (reloc_info[i].type == QXL_RELOC_TYPE_BO)
apply_reloc(qdev, &reloc_info[i]);
else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF)
apply_surf_reloc(qdev, &reloc_info[i]);
}
ret = qxl_push_command_ring_release(qdev, release, cmd->type, true);
if (ret)
qxl_release_backoff_reserve_list(release);
else
qxl_release_fence_buffer_objects(release);
out_free_bos:
out_free_release:
if (ret)
qxl_release_free(qdev, release);
out_free_reloc:
kfree(reloc_info);
return ret;
}
/*
* Usage of execbuffer:
* Relocations need to take into account the full QXLDrawable size.
* However, the command as passed from user space must *not* contain the initial
* QXLReleaseInfo struct (first XXX bytes)
*/
static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct qxl_device *qdev = dev->dev_private;
struct drm_qxl_execbuffer *execbuffer = data;
struct drm_qxl_command user_cmd;
int cmd_num;
struct qxl_bo *reloc_src_bo;
struct qxl_bo *reloc_dst_bo;
struct drm_qxl_reloc reloc;
void *fb_cmd;
int i, ret;
struct qxl_reloc_list reloc_list;
int unwritten;
uint32_t reloc_dst_offset;
INIT_LIST_HEAD(&reloc_list.bos);
for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
struct qxl_release *release;
struct qxl_bo *cmd_bo;
int release_type;
struct drm_qxl_command *commands =
(struct drm_qxl_command *)execbuffer->commands;
if (DRM_COPY_FROM_USER(&user_cmd, &commands[cmd_num],
sizeof(user_cmd)))
return -EFAULT;
switch (user_cmd.type) {
case QXL_CMD_DRAW:
release_type = QXL_RELEASE_DRAWABLE;
break;
case QXL_CMD_SURFACE:
case QXL_CMD_CURSOR:
default:
DRM_DEBUG("Only draw commands in execbuffers\n");
return -EINVAL;
break;
}
if (user_cmd.command_size > PAGE_SIZE - sizeof(union qxl_release_info))
return -EINVAL;
ret = qxl_alloc_release_reserved(qdev,
sizeof(union qxl_release_info) +
user_cmd.command_size,
release_type,
&release,
&cmd_bo);
if (ret)
return ret;
/* TODO copy slow path code from i915 */
fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE));
unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)user_cmd.command, user_cmd.command_size);
qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd);
if (unwritten) {
DRM_ERROR("got unwritten %d\n", unwritten);
qxl_release_unreserve(qdev, release);
qxl_release_free(qdev, release);
return -EFAULT;
}
for (i = 0 ; i < user_cmd.relocs_num; ++i) {
if (DRM_COPY_FROM_USER(&reloc,
&((struct drm_qxl_reloc *)user_cmd.relocs)[i],
sizeof(reloc))) {
qxl_bo_list_unreserve(&reloc_list, true);
qxl_release_unreserve(qdev, release);
qxl_release_free(qdev, release);
return -EFAULT;
}
/* add the bos to the list of bos to validate -
need to validate first then process relocs? */
if (reloc.dst_handle) {
reloc_dst_bo = qxlhw_handle_to_bo(qdev, file_priv,
reloc.dst_handle, &reloc_list);
if (!reloc_dst_bo) {
qxl_bo_list_unreserve(&reloc_list, true);
qxl_release_unreserve(qdev, release);
qxl_release_free(qdev, release);
return -EINVAL;
}
reloc_dst_offset = 0;
} else {
reloc_dst_bo = cmd_bo;
reloc_dst_offset = release->release_offset;
}
/* reserve and validate the reloc dst bo */
if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle > 0) {
reloc_src_bo =
qxlhw_handle_to_bo(qdev, file_priv,
reloc.src_handle, &reloc_list);
if (!reloc_src_bo) {
if (reloc_dst_bo != cmd_bo)
drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base);
qxl_bo_list_unreserve(&reloc_list, true);
qxl_release_unreserve(qdev, release);
qxl_release_free(qdev, release);
return -EINVAL;
}
} else
reloc_src_bo = NULL;
if (reloc.reloc_type == QXL_RELOC_TYPE_BO) {
apply_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset,
reloc_src_bo, reloc.src_offset);
} else if (reloc.reloc_type == QXL_RELOC_TYPE_SURF) {
apply_surf_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset, reloc_src_bo);
} else {
DRM_ERROR("unknown reloc type %d\n", reloc.reloc_type);
return -EINVAL;
}
if (reloc_src_bo && reloc_src_bo != cmd_bo) {
qxl_release_add_res(qdev, release, reloc_src_bo);
drm_gem_object_unreference_unlocked(&reloc_src_bo->gem_base);
}
if (reloc_dst_bo != cmd_bo)
drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base);
}
qxl_fence_releaseable(qdev, release);
ret = qxl_push_command_ring_release(qdev, release, user_cmd.type, true);
if (ret == -ERESTARTSYS) {
qxl_release_unreserve(qdev, release);
qxl_release_free(qdev, release);
qxl_bo_list_unreserve(&reloc_list, true);
return ret;
}
qxl_release_unreserve(qdev, release);
}
qxl_bo_list_unreserve(&reloc_list, 0);
return 0;
}
void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image,
int stride /* filled in if 0 */)
{
struct qxl_device *qdev = qxl_fb_image->qdev;
struct qxl_drawable *drawable;
struct qxl_rect rect;
const struct fb_image *fb_image = &qxl_fb_image->fb_image;
int x = fb_image->dx;
int y = fb_image->dy;
int width = fb_image->width;
int height = fb_image->height;
const char *src = fb_image->data;
int depth = fb_image->depth;
struct qxl_release *release;
struct qxl_image *image;
int ret;
struct qxl_drm_image *dimage;
struct qxl_bo *palette_bo = NULL;
if (stride == 0)
stride = depth * width / 8;
ret = alloc_drawable(qdev, &release);
if (ret)
return;
ret = qxl_image_alloc_objects(qdev, release,
&dimage,
height, stride);
if (ret)
goto out_free_drawable;
if (depth == 1) {
ret = alloc_palette_object(qdev, release, &palette_bo);
if (ret)
goto out_free_image;
}
/* do a reservation run over all the objects we just allocated */
ret = qxl_release_reserve_list(release, true);
if (ret)
goto out_free_palette;
rect.left = x;
rect.right = x + width;
rect.top = y;
rect.bottom = y + height;
ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, release);
if (ret) {
qxl_release_backoff_reserve_list(release);
goto out_free_palette;
}
ret = qxl_image_init(qdev, release, dimage,
(const uint8_t *)src, 0, 0,
width, height, depth, stride);
if (ret) {
qxl_release_backoff_reserve_list(release);
qxl_release_free(qdev, release);
return;
}
if (depth == 1) {
void *ptr;
ret = qxl_palette_create_1bit(palette_bo, release, qxl_fb_image);
ptr = qxl_bo_kmap_atomic_page(qdev, dimage->bo, 0);
image = ptr;
image->u.bitmap.palette =
qxl_bo_physical_address(qdev, palette_bo, 0);
qxl_bo_kunmap_atomic_page(qdev, dimage->bo, ptr);
}
drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
drawable->u.copy.src_area.top = 0;
drawable->u.copy.src_area.bottom = height;
drawable->u.copy.src_area.left = 0;
drawable->u.copy.src_area.right = width;
drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
drawable->u.copy.scale_mode = 0;
drawable->u.copy.mask.flags = 0;
drawable->u.copy.mask.pos.x = 0;
drawable->u.copy.mask.pos.y = 0;
drawable->u.copy.mask.bitmap = 0;
drawable->u.copy.src_bitmap =
qxl_bo_physical_address(qdev, dimage->bo, 0);
qxl_release_unmap(qdev, release, &drawable->release_info);
qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
qxl_release_fence_buffer_objects(release);
out_free_palette:
if (palette_bo)
qxl_bo_unref(&palette_bo);
out_free_image:
qxl_image_free_objects(qdev, dimage);
out_free_drawable:
if (ret)
free_drawable(qdev, release);
}
