9fb0767374
- S3 Savage driver ported. - Added support for ATI_fragment_shader registers for r200. - Improved r300 support, needed for latest r300 DRI driver. - (possibly) r300 PCIE support, needs X.Org server from CVS. - Added support for PCI Matrox cards. - Software fallbacks fixed for Rage 128, which used to render badly or hang. - Some issues reported by WITNESS are fixed. - i915 module Makefile added, as the driver may now be working, but is untested. - Added scripts for copying and preprocessing DRM CVS for inclusion in the kernel. Thanks to Daniel Stone for getting me started on that.
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
/* 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>
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "dev/drm/drmP.h"
|
|
|
|
#define ATI_PCIGART_PAGE_SIZE 4096 /* PCI GART page size */
|
|
#define ATI_MAX_PCIGART_PAGES 8192 /* 32 MB aperture, 4K pages */
|
|
#define ATI_PCIGART_TABLE_SIZE 32768
|
|
|
|
int drm_ati_pcigart_init(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
|
|
{
|
|
unsigned long pages;
|
|
u32 *pci_gart = NULL, page_base;
|
|
int i, j;
|
|
|
|
if (dev->sg == NULL) {
|
|
DRM_ERROR( "no scatter/gather memory!\n" );
|
|
return 0;
|
|
}
|
|
|
|
if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
|
|
/* GART table in system memory */
|
|
dev->sg->dmah = drm_pci_alloc(dev, ATI_PCIGART_TABLE_SIZE, 0,
|
|
0xfffffffful);
|
|
if (dev->sg->dmah == NULL) {
|
|
DRM_ERROR("cannot allocate PCI GART table!\n");
|
|
return 0;
|
|
}
|
|
|
|
gart_info->addr = (void *)dev->sg->dmah->vaddr;
|
|
gart_info->bus_addr = dev->sg->dmah->busaddr;
|
|
pci_gart = (u32 *)dev->sg->dmah->vaddr;
|
|
} else {
|
|
/* GART table in framebuffer memory */
|
|
pci_gart = gart_info->addr;
|
|
}
|
|
|
|
pages = DRM_MIN(dev->sg->pages, ATI_MAX_PCIGART_PAGES);
|
|
|
|
bzero(pci_gart, ATI_PCIGART_TABLE_SIZE);
|
|
|
|
KASSERT(PAGE_SIZE >= ATI_PCIGART_PAGE_SIZE, ("page size too small"));
|
|
|
|
for ( i = 0 ; i < pages ; i++ ) {
|
|
page_base = (u32) dev->sg->busaddr[i];
|
|
|
|
for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
|
|
if (gart_info->is_pcie)
|
|
*pci_gart = (cpu_to_le32(page_base) >> 8) | 0xc;
|
|
else
|
|
*pci_gart = cpu_to_le32(page_base);
|
|
pci_gart++;
|
|
page_base += ATI_PCIGART_PAGE_SIZE;
|
|
}
|
|
}
|
|
|
|
DRM_MEMORYBARRIER();
|
|
|
|
return 1;
|
|
}
|
|
|
|
int drm_ati_pcigart_cleanup(drm_device_t *dev, drm_ati_pcigart_info *gart_info)
|
|
{
|
|
if (dev->sg == NULL) {
|
|
DRM_ERROR( "no scatter/gather memory!\n" );
|
|
return 0;
|
|
}
|
|
|
|
drm_pci_free(dev, dev->sg->dmah);
|
|
|
|
return 1;
|
|
}
|