/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __PXA3XX_GCU_H__ #define __PXA3XX_GCU_H__ #include <linux/types.h> /* Number of 32bit words in display list (ring buffer). */ #define PXA3XX_GCU_BUFFER_WORDS ((256 * 1024 - 256) / 4) /* To be increased when breaking the ABI */ #define PXA3XX_GCU_SHARED_MAGIC 0x30000001 #define PXA3XX_GCU_BATCH_WORDS 8192 struct pxa3xx_gcu_shared { u32 buffer[PXA3XX_GCU_BUFFER_WORDS]; bool hw_running; unsigned long buffer_phys; unsigned int num_words; unsigned int num_writes; unsigned int num_done; unsigned int num_interrupts; unsigned int num_wait_idle; unsigned int num_wait_free; unsigned int num_idle; u32 magic; }; /* Initialization and synchronization. * Hardware is started upon write(). */ #define PXA3XX_GCU_IOCTL_RESET _IO('G', 0) #define PXA3XX_GCU_IOCTL_WAIT_IDLE _IO('G', 2) #endif /* __PXA3XX_GCU_H__ */