renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

Age	Commit message (Expand)	Author
2007-07-16	drm: detypedef drm.h and fixup all problems	Dave Airlie
2006-10-02	Bug 6242: [mach64] Use private DMA buffers, part #4.	George Sapountzis
2006-08-28	drm: lots of small cleanups and whitespace issues fixed up	Dave Airlie
2005-11-28	Assert an MIT copyright on sis_drm.h, since one was lacking and I created	Eric Anholt
2004-09-30	Lindent of core build. Drivers checked for no binary diffs. A few files	Jon Smirl
2004-04-12	Add mach64 to the trunk	Dave Airlie

/* ati_pcigart.h -- ATI PCI GART support -*- linux-c -*- * Created: Wed Dec 13 21:52:19 2000 by gareth@valinux.com * * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * 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 * PRECISION INSIGHT AND/OR ITS SUPPLIERS 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. * * Authors: * Gareth Hughes <gareth@valinux.com> * * $FreeBSD: src/sys/dev/drm/ati_pcigart.h,v 1.1 2003/03/09 02:08:28 anholt Exp $ */ #include "drmP.h" #if PAGE_SIZE == 8192 # define ATI_PCIGART_TABLE_ORDER 2 # define ATI_PCIGART_TABLE_PAGES (1 << 2) #elif PAGE_SIZE == 4096 # define ATI_PCIGART_TABLE_ORDER 3 # define ATI_PCIGART_TABLE_PAGES (1 << 3) #elif # error - PAGE_SIZE not 8K or 4K #endif # define ATI_MAX_PCIGART_PAGES 8192 /* 32 MB aperture, 4K pages */ # define ATI_PCIGART_PAGE_SIZE 4096 /* PCI GART page size */ int DRM(ati_pcigart_init)( drm_device_t *dev, unsigned long *addr, dma_addr_t *bus_addr) { drm_sg_mem_t *entry = dev->sg; unsigned long address = 0; unsigned long pages; u32 *pci_gart=0, page_base, bus_address = 0; int i, j, ret = 0; if ( !entry ) { DRM_ERROR( "no scatter/gather memory!\n" ); goto done; } address = (long)contigmalloc((1 << ATI_PCIGART_TABLE_ORDER) * PAGE_SIZE, DRM(M_DRM), M_WAITOK, 0ul, 0xfffffffful, PAGE_SIZE, 0); if ( !address ) { DRM_ERROR( "cannot allocate PCI GART page!\n" ); goto done; } /* XXX: we need to busdma this */ bus_address = vtophys( address ); pci_gart = (u32 *)address; pages = ( entry->pages <= ATI_MAX_PCIGART_PAGES ) ? entry->pages : ATI_MAX_PCIGART_PAGES; bzero( pci_gart, ATI_MAX_PCIGART_PAGES * sizeof(u32) ); for ( i = 0 ; i < pages ; i++ ) { entry->busaddr[i] = vtophys( entry->handle + (i*PAGE_SIZE) ); page_base = (u32) entry->busaddr[i]; for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) { *pci_gart++ = cpu_to_le32( page_base ); page_base += ATI_PCIGART_PAGE_SIZE; } } DRM_MEMORYBARRIER(); ret = 1; done: *addr = address; *bus_addr = bus_address; return ret; } int DRM(ati_pcigart_cleanup)( drm_device_t *dev, unsigned long addr, dma_addr_t bus_addr) { drm_sg_mem_t *entry = dev->sg; /* we need to support large memory configurations */ if ( !entry ) { DRM_ERROR( "no scatter/gather memory!\n" ); return 0; } #if __FreeBSD_version > 500000 contigfree( (void *)addr, (1 << ATI_PCIGART_TABLE_ORDER) * PAGE_SIZE, DRM(M_DRM)); /* Not available on 4.x */ #endif return 1; }