Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
611 | 99.35% | 2 | 50.00% | |
2 | 0.33% | 1 | 25.00% | |
2 | 0.33% | 1 | 25.00% | |
Total | 615 | 4 |
Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Sudeep Dutt | 611 | 99.35% | 2 | 50.00% |
Vincent Whitchurch | 2 | 0.33% | 1 | 25.00% |
Thomas Gleixner | 2 | 0.33% | 1 | 25.00% |
Total | 615 | 4 |
/* SPDX-License-Identifier: GPL-2.0-only */ /* * Intel MIC Platform Software Stack (MPSS) * * Copyright(c) 2014 Intel Corporation. * * Intel SCIF driver. */ #ifndef SCIF_MAP_H #define SCIF_MAP_H #include "../bus/scif_bus.h" static __always_inline void * scif_alloc_coherent(dma_addr_t *dma_handle, struct scif_dev *scifdev, size_t size, gfp_t gfp) { void *va; if (scifdev_self(scifdev)) { va = kmalloc(size, gfp); if (va) *dma_handle = virt_to_phys(va); } else { va = dma_alloc_coherent(&scifdev->sdev->dev, size, dma_handle, gfp); if (va && scifdev_is_p2p(scifdev)) *dma_handle = *dma_handle + scifdev->base_addr; } return va; } static __always_inline void scif_free_coherent(void *va, dma_addr_t local, struct scif_dev *scifdev, size_t size) { if (scifdev_self(scifdev)) { kfree(va); } else { if (scifdev_is_p2p(scifdev) && local > scifdev->base_addr) local = local - scifdev->base_addr; dma_free_coherent(&scifdev->sdev->dev, size, va, local); } } static __always_inline int scif_map_single(dma_addr_t *dma_handle, void *local, struct scif_dev *scifdev, size_t size) { int err = 0; if (scifdev_self(scifdev)) { *dma_handle = virt_to_phys((local)); } else { *dma_handle = dma_map_single(&scifdev->sdev->dev, local, size, DMA_BIDIRECTIONAL); if (dma_mapping_error(&scifdev->sdev->dev, *dma_handle)) err = -ENOMEM; else if (scifdev_is_p2p(scifdev)) *dma_handle = *dma_handle + scifdev->base_addr; } if (err) *dma_handle = 0; return err; } static __always_inline void scif_unmap_single(dma_addr_t local, struct scif_dev *scifdev, size_t size) { if (!scifdev_self(scifdev)) { if (scifdev_is_p2p(scifdev)) local = local - scifdev->base_addr; dma_unmap_single(&scifdev->sdev->dev, local, size, DMA_BIDIRECTIONAL); } } static __always_inline void * scif_ioremap(dma_addr_t phys, size_t size, struct scif_dev *scifdev) { void *out_virt; struct scif_hw_dev *sdev = scifdev->sdev; if (scifdev_self(scifdev)) out_virt = phys_to_virt(phys); else out_virt = (void __force *) sdev->hw_ops->remap(sdev, phys, size); return out_virt; } static __always_inline void scif_iounmap(void *virt, size_t len, struct scif_dev *scifdev) { if (!scifdev_self(scifdev)) { struct scif_hw_dev *sdev = scifdev->sdev; sdev->hw_ops->unmap(sdev, (void __force __iomem *)virt); } } static __always_inline int scif_map_page(dma_addr_t *dma_handle, struct page *page, struct scif_dev *scifdev) { int err = 0; if (scifdev_self(scifdev)) { *dma_handle = page_to_phys(page); } else { struct scif_hw_dev *sdev = scifdev->sdev; *dma_handle = dma_map_page(&sdev->dev, page, 0x0, PAGE_SIZE, DMA_BIDIRECTIONAL); if (dma_mapping_error(&sdev->dev, *dma_handle)) err = -ENOMEM; else if (scifdev_is_p2p(scifdev)) *dma_handle = *dma_handle + scifdev->base_addr; } if (err) *dma_handle = 0; return err; } #endif /* SCIF_MAP_H */