projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 364dbdf3 DM |
2 | #ifndef __PXA3XX_GCU_H__ |
| 3 | #define __PXA3XX_GCU_H__ | |
| 4 | ||
| 5 | #include <linux/types.h> | |
| 6 | ||
| 7 | /* Number of 32bit words in display list (ring buffer). */ | |
| 8 | #define PXA3XX_GCU_BUFFER_WORDS ((256 * 1024 - 256) / 4) | |
| 9 | ||
| 10 | /* To be increased when breaking the ABI */ | |
| 11 | #define PXA3XX_GCU_SHARED_MAGIC 0x30000001 | |
| 12 | ||
| 13 | #define PXA3XX_GCU_BATCH_WORDS 8192 | |
| 14 | ||
| 15 | struct pxa3xx_gcu_shared { | |
| 16 | u32 buffer[PXA3XX_GCU_BUFFER_WORDS]; | |
| 17 | ||
| 18 | bool hw_running; | |
| 19 | ||
| 20 | unsigned long buffer_phys; | |
| 21 | ||
| 22 | unsigned int num_words; | |
| 23 | unsigned int num_writes; | |
| 24 | unsigned int num_done; | |
| 25 | unsigned int num_interrupts; | |
| 26 | unsigned int num_wait_idle; | |
| 27 | unsigned int num_wait_free; | |
| 28 | unsigned int num_idle; | |
| 29 | ||
| 30 | u32 magic; | |
| 31 | }; | |
| 32 | ||
| 33 | /* Initialization and synchronization. | |
| 34 | * Hardware is started upon write(). */ | |
| 35 | #define PXA3XX_GCU_IOCTL_RESET _IO('G', 0) | |
| 36 | #define PXA3XX_GCU_IOCTL_WAIT_IDLE _IO('G', 2) | |
| 37 | ||
| 38 | #endif /* __PXA3XX_GCU_H__ */ | |
| 39 |