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- #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__ */
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