mirror of
https://github.com/Qortal/Brooklyn.git
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a94b3d14aa
Changes included (and more): 1. Dynamic RAM merge 2. Real-time page scan and allocation 3. Cache compression 4. Real-time IRQ checks 5. Dynamic I/O allocation for Java heap 6. Java page migration 7. Contiguous memory allocation 8. Idle pages tracking 9. Per CPU RAM usage tracking 10. ARM NEON scalar multiplication library 11. NEON/ARMv8 crypto extensions 12. NEON SHA, Blake, RIPEMD crypto extensions 13. Parallel NEON crypto engine for multi-algo based CPU stress reduction
35 lines
928 B
C
35 lines
928 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_DMA_MAPPING_H
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#define _LINUX_DMA_MAPPING_H
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#ifdef CONFIG_HAS_DMA
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# error Virtio userspace code does not support CONFIG_HAS_DMA
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#endif
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enum dma_data_direction {
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DMA_BIDIRECTIONAL = 0,
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DMA_TO_DEVICE = 1,
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DMA_FROM_DEVICE = 2,
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DMA_NONE = 3,
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};
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#define dma_alloc_coherent(d, s, hp, f) ({ \
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void *__dma_alloc_coherent_p = kmalloc((s), (f)); \
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*(hp) = (unsigned long)__dma_alloc_coherent_p; \
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__dma_alloc_coherent_p; \
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})
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#define dma_free_coherent(d, s, p, h) kfree(p)
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#define dma_map_page(d, p, o, s, dir) (page_to_phys(p) + (o))
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#define dma_map_single(d, p, s, dir) (virt_to_phys(p))
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#define dma_mapping_error(...) (0)
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#define dma_unmap_single(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)
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#define dma_unmap_page(d, a, s, r) do { (void)(d); (void)(a); (void)(s); (void)(r); } while (0)
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#define dma_max_mapping_size(...) SIZE_MAX
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#endif
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