diff options
Diffstat (limited to 'nx-X11/extras/drm/bsd-core/drm_pci.c')
-rw-r--r-- | nx-X11/extras/drm/bsd-core/drm_pci.c | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/nx-X11/extras/drm/bsd-core/drm_pci.c b/nx-X11/extras/drm/bsd-core/drm_pci.c deleted file mode 100644 index a33f5f9cf..000000000 --- a/nx-X11/extras/drm/bsd-core/drm_pci.c +++ /dev/null @@ -1,141 +0,0 @@ -/** - * \file drm_pci.h - * \brief PCI consistent, DMA-accessible memory functions. - * - * \author Eric Anholt <anholt@FreeBSD.org> - */ - -/*- - * Copyright 2003 Eric Anholt. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "drmP.h" - -/**********************************************************************/ -/** \name PCI memory */ -/*@{*/ - -#if defined(__FreeBSD__) -static void -drm_pci_busdma_callback(void *arg, bus_dma_segment_t *segs, int nsegs, int error) -{ - drm_dma_handle_t *dmah = arg; - - if (error != 0) - return; - - KASSERT(nsegs == 1, ("drm_pci_busdma_callback: bad dma segment count")); - dmah->busaddr = segs[0].ds_addr; -} -#endif - -/** - * \brief Allocate a physically contiguous DMA-accessible consistent - * memory block. - */ -drm_dma_handle_t * -drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, dma_addr_t maxaddr) -{ - drm_dma_handle_t *dmah; - int ret; - - /* Need power-of-two alignment, so fail the allocation if it isn't. */ - if ((align & (align - 1)) != 0) { - DRM_ERROR("drm_pci_alloc with non-power-of-two alignment %d\n", - (int)align); - return NULL; - } - - dmah = malloc(sizeof(drm_dma_handle_t), M_DRM, M_ZERO | M_NOWAIT); - if (dmah == NULL) - return NULL; - -#ifdef __FreeBSD__ - ret = bus_dma_tag_create(NULL, align, 0, /* tag, align, boundary */ - maxaddr, BUS_SPACE_MAXADDR, /* lowaddr, highaddr */ - NULL, NULL, /* filtfunc, filtfuncargs */ - size, 1, size, /* maxsize, nsegs, maxsegsize */ - BUS_DMA_ALLOCNOW, NULL, NULL, /* flags, lockfunc, lockfuncargs */ - &dmah->tag); - if (ret != 0) { - free(dmah, M_DRM); - return NULL; - } - - ret = bus_dmamem_alloc(dmah->tag, &dmah->vaddr, BUS_DMA_NOWAIT, - &dmah->map); - if (ret != 0) { - bus_dma_tag_destroy(dmah->tag); - free(dmah, M_DRM); - return NULL; - } - - ret = bus_dmamap_load(dmah->tag, dmah->map, dmah->vaddr, size, - drm_pci_busdma_callback, dmah, 0); - if (ret != 0) { - bus_dmamem_free(dmah->tag, dmah->vaddr, dmah->map); - bus_dma_tag_destroy(dmah->tag); - free(dmah, M_DRM); - return NULL; - } -#elif defined(__NetBSD__) - ret = bus_dmamem_alloc(dev->dma_tag, size, align, PAGE_SIZE, - &dmah->seg, 1, &nsegs, BUS_DMA_NOWAIT); - if ((ret != 0) || (nsegs != 1)) { - free(dmah, M_DRM); - return NULL; - } - - ret = bus_dmamem_map(dev->dma_tag, &dmah->seg, 1, size, &dmah->addr, - BUS_DMA_NOWAIT); - if (ret != 0) { - bus_dmamem_free(dev->dma_tag, &dmah->seg, 1); - free(dmah, M_DRM); - return NULL; - } - - dmah->dmaaddr = h->seg.ds_addr; -#endif - - return dmah; -} - -/** - * \brief Free a DMA-accessible consistent memory block. - */ -void -drm_pci_free(drm_device_t *dev, drm_dma_handle_t *dmah) -{ - if (dmah == NULL) - return; - -#if defined(__FreeBSD__) - bus_dmamem_free(dmah->tag, dmah->vaddr, dmah->map); - bus_dma_tag_destroy(dmah->tag); -#elif defined(__NetBSD__) - bus_dmamem_free(dev->dma_tag, &dmah->seg, 1); -#endif - - free(dmah, M_DRM); -} - -/*@}*/ |