diff options
author | anholt <anholt@FreeBSD.org> | 2003-08-19 02:57:31 +0000 |
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committer | anholt <anholt@FreeBSD.org> | 2003-08-19 02:57:31 +0000 |
commit | 55fc74037ce1fed2313813918c5380b1c642828e (patch) | |
tree | e45c260fa868be8644bf3d316e3c7cc3cdc5a0eb /sys/dev/drm/drm_pci.h | |
parent | f9627255eea8f589c728f37d9a3a6e0040a24291 (diff) | |
download | FreeBSD-src-55fc74037ce1fed2313813918c5380b1c642828e.zip FreeBSD-src-55fc74037ce1fed2313813918c5380b1c642828e.tar.gz |
Update DRM from DRI CVS as of today. Notable changes include Radeon
suspend/resume support and Rage 128 pageflipping support (both of which require
XFree86 from CVS), along with miscellaneous cleanups.
Diffstat (limited to 'sys/dev/drm/drm_pci.h')
-rw-r--r-- | sys/dev/drm/drm_pci.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/sys/dev/drm/drm_pci.h b/sys/dev/drm/drm_pci.h new file mode 100644 index 0000000..b853c2a --- /dev/null +++ b/sys/dev/drm/drm_pci.h @@ -0,0 +1,67 @@ +/** + * \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. + * + * $FreeBSD$ + */ + +#include "dev/drm/drmP.h" + +/**********************************************************************/ +/** \name PCI memory */ +/*@{*/ + +/** + * \brief Allocate a physically contiguous DMA-accessible consistent + * memory block. + */ +void * +DRM(pci_alloc)(drm_device_t *dev, size_t size, size_t align, dma_addr_t maxaddr, + dma_addr_t *busaddr) +{ + void *vaddr; + + vaddr = contigmalloc(size, DRM(M_DRM), M_WAITOK, 0ul, maxaddr, align, + 0); + *busaddr = vtophys(vaddr); + + return vaddr; +} + +/** + * \brief Free a DMA-accessible consistent memory block. + */ +void +DRM(pci_free)(drm_device_t *dev, size_t size, void *vaddr, dma_addr_t busaddr) +{ +#if __FreeBSD_version > 500000 + contigfree(vaddr, size, DRM(M_DRM)); /* Not available on 4.x */ +#endif +} + +/*@}*/ |