1 #ifndef __PXA3XX_GCU_H__ 2 #define __PXA3XX_GCU_H__ 3 4 #include <linux/types.h> 5 6 /* Number of 32bit words in display list (ring buffer). */ 7 #define PXA3XX_GCU_BUFFER_WORDS ((256 * 1024 - 256) / 4) 8 9 /* To be increased when breaking the ABI */ 10 #define PXA3XX_GCU_SHARED_MAGIC 0x30000001 11 12 #define PXA3XX_GCU_BATCH_WORDS 8192 13 14 struct pxa3xx_gcu_shared { 15 u32 buffer[PXA3XX_GCU_BUFFER_WORDS]; 16 17 bool hw_running; 18 19 unsigned long buffer_phys; 20 21 unsigned int num_words; 22 unsigned int num_writes; 23 unsigned int num_done; 24 unsigned int num_interrupts; 25 unsigned int num_wait_idle; 26 unsigned int num_wait_free; 27 unsigned int num_idle; 28 29 u32 magic; 30 }; 31 32 /* Initialization and synchronization. 33 * Hardware is started upon write(). */ 34 #define PXA3XX_GCU_IOCTL_RESET _IO('G', 0) 35 #define PXA3XX_GCU_IOCTL_WAIT_IDLE _IO('G', 2) 36 37 #endif /* __PXA3XX_GCU_H__ */ 38 39