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Diffstat (limited to 'drivers/char/drm/ati_pcigart.c')
-rw-r--r--drivers/char/drm/ati_pcigart.c181
1 files changed, 0 insertions, 181 deletions
diff --git a/drivers/char/drm/ati_pcigart.c b/drivers/char/drm/ati_pcigart.c
deleted file mode 100644
index c533d0c9ec6..00000000000
--- a/drivers/char/drm/ati_pcigart.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/**
- * \file ati_pcigart.c
- * ATI PCI GART support
- *
- * \author Gareth Hughes <gareth@valinux.com>
- */
-
-/*
- * 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.
- */
-
-#include "drmP.h"
-
-# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
-
-static int drm_ati_alloc_pcigart_table(struct drm_device *dev,
- struct drm_ati_pcigart_info *gart_info)
-{
- gart_info->table_handle = drm_pci_alloc(dev, gart_info->table_size,
- PAGE_SIZE,
- gart_info->table_mask);
- if (gart_info->table_handle == NULL)
- return -ENOMEM;
-
- return 0;
-}
-
-static void drm_ati_free_pcigart_table(struct drm_device *dev,
- struct drm_ati_pcigart_info *gart_info)
-{
- drm_pci_free(dev, gart_info->table_handle);
- gart_info->table_handle = NULL;
-}
-
-int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
-{
- struct drm_sg_mem *entry = dev->sg;
- unsigned long pages;
- int i;
- int max_pages;
-
- /* we need to support large memory configurations */
- if (!entry) {
- DRM_ERROR("no scatter/gather memory!\n");
- return 0;
- }
-
- if (gart_info->bus_addr) {
-
- max_pages = (gart_info->table_size / sizeof(u32));
- pages = (entry->pages <= max_pages)
- ? entry->pages : max_pages;
-
- for (i = 0; i < pages; i++) {
- if (!entry->busaddr[i])
- break;
- pci_unmap_page(dev->pdev, entry->busaddr[i],
- PAGE_SIZE, PCI_DMA_TODEVICE);
- }
-
- if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
- gart_info->bus_addr = 0;
- }
-
- if (gart_info->gart_table_location == DRM_ATI_GART_MAIN &&
- gart_info->table_handle) {
- drm_ati_free_pcigart_table(dev, gart_info);
- }
-
- return 1;
-}
-EXPORT_SYMBOL(drm_ati_pcigart_cleanup);
-
-int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
-{
- struct drm_sg_mem *entry = dev->sg;
- void *address = NULL;
- unsigned long pages;
- u32 *pci_gart, page_base;
- dma_addr_t bus_address = 0;
- int i, j, ret = 0;
- int max_pages;
-
- if (!entry) {
- DRM_ERROR("no scatter/gather memory!\n");
- goto done;
- }
-
- if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
- DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
-
- ret = drm_ati_alloc_pcigart_table(dev, gart_info);
- if (ret) {
- DRM_ERROR("cannot allocate PCI GART page!\n");
- goto done;
- }
-
- address = gart_info->table_handle->vaddr;
- bus_address = gart_info->table_handle->busaddr;
- } else {
- address = gart_info->addr;
- bus_address = gart_info->bus_addr;
- DRM_DEBUG("PCI: Gart Table: VRAM %08LX mapped at %08lX\n",
- (unsigned long long)bus_address,
- (unsigned long)address);
- }
-
- pci_gart = (u32 *) address;
-
- max_pages = (gart_info->table_size / sizeof(u32));
- pages = (entry->pages <= max_pages)
- ? entry->pages : max_pages;
-
- memset(pci_gart, 0, max_pages * sizeof(u32));
-
- for (i = 0; i < pages; i++) {
- /* we need to support large memory configurations */
- entry->busaddr[i] = pci_map_page(dev->pdev, entry->pagelist[i],
- 0, PAGE_SIZE, PCI_DMA_TODEVICE);
- if (entry->busaddr[i] == 0) {
- DRM_ERROR("unable to map PCIGART pages!\n");
- drm_ati_pcigart_cleanup(dev, gart_info);
- address = NULL;
- bus_address = 0;
- goto done;
- }
- page_base = (u32) entry->busaddr[i];
-
- for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
- switch(gart_info->gart_reg_if) {
- case DRM_ATI_GART_IGP:
- *pci_gart = cpu_to_le32((page_base) | 0xc);
- break;
- case DRM_ATI_GART_PCIE:
- *pci_gart = cpu_to_le32((page_base >> 8) | 0xc);
- break;
- default:
- case DRM_ATI_GART_PCI:
- *pci_gart = cpu_to_le32(page_base);
- break;
- }
- pci_gart++;
- page_base += ATI_PCIGART_PAGE_SIZE;
- }
- }
- ret = 1;
-
-#if defined(__i386__) || defined(__x86_64__)
- wbinvd();
-#else
- mb();
-#endif
-
- done:
- gart_info->addr = address;
- gart_info->bus_addr = bus_address;
- return ret;
-}
-EXPORT_SYMBOL(drm_ati_pcigart_init);