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364dbdf3 DM |
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 |