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39 lines
929 B
39 lines
929 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __PXA3XX_GCU_H__ |
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#define __PXA3XX_GCU_H__ |
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#include <linux/types.h> |
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/* Number of 32bit words in display list (ring buffer). */ |
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#define PXA3XX_GCU_BUFFER_WORDS ((256 * 1024 - 256) / 4) |
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/* To be increased when breaking the ABI */ |
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#define PXA3XX_GCU_SHARED_MAGIC 0x30000001 |
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#define PXA3XX_GCU_BATCH_WORDS 8192 |
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struct pxa3xx_gcu_shared { |
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u32 buffer[PXA3XX_GCU_BUFFER_WORDS]; |
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bool hw_running; |
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unsigned long buffer_phys; |
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unsigned int num_words; |
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unsigned int num_writes; |
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unsigned int num_done; |
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unsigned int num_interrupts; |
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unsigned int num_wait_idle; |
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unsigned int num_wait_free; |
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unsigned int num_idle; |
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u32 magic; |
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}; |
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/* Initialization and synchronization. |
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* Hardware is started upon write(). */ |
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#define PXA3XX_GCU_IOCTL_RESET _IO('G', 0) |
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#define PXA3XX_GCU_IOCTL_WAIT_IDLE _IO('G', 2) |
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#endif /* __PXA3XX_GCU_H__ */ |
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