diff options
Diffstat (limited to 'drivers/misc/mic/scif/scif_map.h')
-rw-r--r-- | drivers/misc/mic/scif/scif_map.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/drivers/misc/mic/scif/scif_map.h b/drivers/misc/mic/scif/scif_map.h deleted file mode 100644 index 96b760819bfc..000000000000 --- a/drivers/misc/mic/scif/scif_map.h +++ /dev/null @@ -1,127 +0,0 @@ -/* 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 */ |