diff options
Diffstat (limited to 'nx-X11/extras/drm/linux-core/ati_pcigart.c')
| -rw-r--r-- | nx-X11/extras/drm/linux-core/ati_pcigart.c | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/nx-X11/extras/drm/linux-core/ati_pcigart.c b/nx-X11/extras/drm/linux-core/ati_pcigart.c deleted file mode 100644 index 404c5b73a..000000000 --- a/nx-X11/extras/drm/linux-core/ati_pcigart.c +++ /dev/null @@ -1,228 +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" - -#if PAGE_SIZE == 65536 -# define ATI_PCIGART_TABLE_ORDER 0 -# define ATI_PCIGART_TABLE_PAGES (1 << 0) -#elif PAGE_SIZE == 16384 -# define ATI_PCIGART_TABLE_ORDER 1 -# define ATI_PCIGART_TABLE_PAGES (1 << 1) -#elif 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) -#else -# error - PAGE_SIZE not 64K, 16K, 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 */ - -static void *drm_ati_alloc_pcigart_table(void) -{ - unsigned long address; - struct page *page; - int i; - DRM_DEBUG("%s\n", __FUNCTION__); - - address = __get_free_pages(GFP_KERNEL, ATI_PCIGART_TABLE_ORDER); - if (address == 0UL) { - return 0; - } - - page = virt_to_page(address); - - for (i = 0; i < ATI_PCIGART_TABLE_PAGES; i++, page++) { - get_page(page); - SetPageReserved(page); - } - - DRM_DEBUG("%s: returning 0x%08lx\n", __FUNCTION__, address); - return (void *)address; -} - -static void drm_ati_free_pcigart_table(void *address) -{ - struct page *page; - int i; - DRM_DEBUG("%s\n", __FUNCTION__); - - page = virt_to_page((unsigned long)address); - - for (i = 0; i < ATI_PCIGART_TABLE_PAGES; i++, page++) { - __put_page(page); - ClearPageReserved(page); - } - - free_pages((unsigned long)address, ATI_PCIGART_TABLE_ORDER); -} - -int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info) -{ - drm_sg_mem_t *entry = dev->sg; - void *address = NULL; - unsigned long pages; - u32 *pci_gart, page_base, bus_address = 0; - int i, j, ret = 0; - - 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"); - - address = drm_ati_alloc_pcigart_table(); - if (!address) { - DRM_ERROR("cannot allocate PCI GART page!\n"); - goto done; - } - - if (!dev->pdev) { - DRM_ERROR("PCI device unknown!\n"); - goto done; - } - - bus_address = pci_map_single(dev->pdev, address, - ATI_PCIGART_TABLE_PAGES * PAGE_SIZE, - PCI_DMA_TODEVICE); - if (bus_address == 0) { - DRM_ERROR("unable to map PCIGART pages!\n"); - drm_ati_free_pcigart_table(address); - address = 0; - goto done; - } - } - else - { - address = gart_info->addr; - bus_address = gart_info->bus_addr; - DRM_DEBUG("PCI: Gart Table: VRAM %08X mapped at %08lX\n", bus_address, (unsigned long)address); - } - - pci_gart = (u32 *) address; - - pages = (entry->pages <= ATI_MAX_PCIGART_PAGES) - ? entry->pages : ATI_MAX_PCIGART_PAGES; - - memset(pci_gart, 0, ATI_MAX_PCIGART_PAGES * sizeof(u32)); - - for (i = 0; i < pages; i++) { - /* we need to support large memory configurations */ - entry->busaddr[i] = pci_map_single(dev->pdev, - page_address(entry-> - pagelist[i]), - 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++) { - 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; - } - } - - 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); - -int drm_ati_pcigart_cleanup(drm_device_t * dev, drm_ati_pcigart_info *gart_info) -{ - drm_sg_mem_t *entry = dev->sg; - unsigned long pages; - int i; - - /* we need to support large memory configurations */ - if (!entry) { - DRM_ERROR("no scatter/gather memory!\n"); - return 0; - } - - if (gart_info->bus_addr) { - if (gart_info->gart_table_location==DRM_ATI_GART_MAIN) { - pci_unmap_single(dev->pdev, gart_info->bus_addr, - ATI_PCIGART_TABLE_PAGES * PAGE_SIZE, - PCI_DMA_TODEVICE); - } - - pages = (entry->pages <= ATI_MAX_PCIGART_PAGES) - ? entry->pages : ATI_MAX_PCIGART_PAGES; - - for (i = 0; i < pages; i++) { - if (!entry->busaddr[i]) - break; - pci_unmap_single(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->addr) { - drm_ati_free_pcigart_table(gart_info->addr); - gart_info->addr=0; - } - - return 1; -} -EXPORT_SYMBOL(drm_ati_pcigart_cleanup); - |