GSP_PAGE_SHIFT
#define GSP_PAGE_SIZE BIT(GSP_PAGE_SHIFT)
gsp->shm.ptes.nr = (gsp->shm.cmdq.size + gsp->shm.msgq.size) >> GSP_PAGE_SHIFT;
gsp->shm.ptes.ptr[i] = gsp->shm.mem.addr + (i << GSP_PAGE_SHIFT);
ptes[i] = (u64)addr + (i << GSP_PAGE_SHIFT);