PXP_PF_WINDOW_ADMIN_GLOBAL_START
gtt_base = PXP_PF_WINDOW_ADMIN_START + PXP_PF_WINDOW_ADMIN_GLOBAL_START;
#define PXP_PF_WINDOW_ADMIN_GLOBAL_END (PXP_PF_WINDOW_ADMIN_GLOBAL_START + PXP_PF_WINDOW_ADMIN_GLOBAL_LENGTH - 1)