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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 |
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