| #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__ */ |
| |
