#include <sys/mman.h>
cros_gralloc_buffer::cros_gralloc_buffer(uint32_t id, struct bo *acquire_bo,
- struct cros_gralloc_handle *acquire_handle)
- : id_(id), bo_(acquire_bo), hnd_(acquire_handle), refcount_(1), lockcount_(0)
+ struct cros_gralloc_handle *acquire_handle,
+ int32_t reserved_region_fd, uint64_t reserved_region_size)
+ : id_(id), bo_(acquire_bo), hnd_(acquire_handle), refcount_(1), lockcount_(0),
+ reserved_region_fd_(reserved_region_fd), reserved_region_size_(reserved_region_size),
+ reserved_region_addr_(nullptr)
{
assert(bo_);
num_planes_ = drv_bo_get_num_planes(bo_);
native_handle_close(&hnd_->base);
delete hnd_;
}
+ if (reserved_region_addr_) {
+ munmap(reserved_region_addr_, reserved_region_size_);
+ }
}
uint32_t cros_gralloc_buffer::get_id() const
{
return drv_resource_info(bo_, strides, offsets);
}
+
+int32_t cros_gralloc_buffer::invalidate()
+{
+ if (lockcount_ <= 0) {
+ drv_log("Buffer was not locked.\n");
+ return -EINVAL;
+ }
+
+ if (lock_data_[0]) {
+ return drv_bo_invalidate(bo_, lock_data_[0]);
+ }
+
+ return 0;
+}
+
+int32_t cros_gralloc_buffer::flush()
+{
+ if (lockcount_ <= 0) {
+ drv_log("Buffer was not locked.\n");
+ return -EINVAL;
+ }
+
+ if (lock_data_[0]) {
+ return drv_bo_flush(bo_, lock_data_[0]);
+ }
+
+ return 0;
+}
+
+int32_t cros_gralloc_buffer::get_reserved_region(void **addr, uint64_t *size)
+{
+ if (reserved_region_fd_ <= 0) {
+ drv_log("Buffer does not have reserved region.\n");
+ return -EINVAL;
+ }
+
+ if (!reserved_region_addr_) {
+ reserved_region_addr_ = mmap(nullptr, reserved_region_size_, PROT_WRITE | PROT_READ,
+ MAP_SHARED, reserved_region_fd_, 0);
+ if (reserved_region_addr_ == MAP_FAILED) {
+ drv_log("Failed to mmap reserved region: %s.\n", strerror(errno));
+ return -errno;
+ }
+ }
+
+ *addr = reserved_region_addr_;
+ *size = reserved_region_size_;
+ return 0;
+}