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Diffstat (limited to 'bsd-core/ati_pcigart.c')
-rw-r--r--bsd-core/ati_pcigart.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/bsd-core/ati_pcigart.c b/bsd-core/ati_pcigart.c
deleted file mode 100644
index bae10a69..00000000
--- a/bsd-core/ati_pcigart.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/*-
- * 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>
- *
- */
-
-/** @file ati_pcigart.c
- * Implementation of ATI's PCIGART, which provides an aperture in card virtual
- * address space with addresses remapped to system memory.
- */
-
-#include "drmP.h"
-
-#define ATI_PCIGART_PAGE_SIZE 4096 /* PCI GART page size */
-#define ATI_PCIGART_PAGE_MASK (~(ATI_PCIGART_PAGE_SIZE-1))
-
-#define ATI_PCIE_WRITE 0x4
-#define ATI_PCIE_READ 0x8
-
-static void
-drm_ati_alloc_pcigart_table_cb(void *arg, bus_dma_segment_t *segs,
- int nsegs, int error)
-{
- struct drm_dma_handle *dmah = arg;
-
- if (error != 0)
- return;
-
- KASSERT(nsegs == 1,
- ("drm_ati_alloc_pcigart_table_cb: bad dma segment count"));
-
- dmah->busaddr = segs[0].ds_addr;
-}
-
-static int
-drm_ati_alloc_pcigart_table(struct drm_device *dev,
- struct drm_ati_pcigart_info *gart_info)
-{
- struct drm_dma_handle *dmah;
- int flags, ret;
-
- dmah = malloc(sizeof(struct drm_dma_handle), DRM_MEM_DMA,
- M_ZERO | M_NOWAIT);
- if (dmah == NULL)
- return ENOMEM;
-
- DRM_UNLOCK();
- ret = bus_dma_tag_create(NULL, PAGE_SIZE, 0, /* tag, align, boundary */
- gart_info->table_mask, BUS_SPACE_MAXADDR, /* lowaddr, highaddr */
- NULL, NULL, /* filtfunc, filtfuncargs */
- gart_info->table_size, 1, /* maxsize, nsegs */
- gart_info->table_size, /* maxsegsize */
- BUS_DMA_ALLOCNOW, NULL, NULL, /* flags, lockfunc, lockfuncargs */
- &dmah->tag);
- if (ret != 0) {
- free(dmah, DRM_MEM_DMA);
- return ENOMEM;
- }
-
- flags = BUS_DMA_NOWAIT | BUS_DMA_ZERO;
- if (gart_info->gart_reg_if == DRM_ATI_GART_IGP)
- flags |= BUS_DMA_NOCACHE;
-
- ret = bus_dmamem_alloc(dmah->tag, &dmah->vaddr, flags, &dmah->map);
- if (ret != 0) {
- bus_dma_tag_destroy(dmah->tag);
- free(dmah, DRM_MEM_DMA);
- return ENOMEM;
- }
- DRM_LOCK();
-
- ret = bus_dmamap_load(dmah->tag, dmah->map, dmah->vaddr,
- gart_info->table_size, drm_ati_alloc_pcigart_table_cb, dmah, 0);
- if (ret != 0) {
- bus_dmamem_free(dmah->tag, dmah->vaddr, dmah->map);
- bus_dma_tag_destroy(dmah->tag);
- free(dmah, DRM_MEM_DMA);
- return ENOMEM;
- }
-
- dev->sg->dmah = dmah;
-
- return 0;
-}
-
-static void
-drm_ati_free_pcigart_table(struct drm_device *dev,
- struct drm_ati_pcigart_info *gart_info)
-{
- struct drm_dma_handle *dmah = dev->sg->dmah;
-
- bus_dmamem_free(dmah->tag, dmah->vaddr, dmah->map);
- bus_dma_tag_destroy(dmah->tag);
- free(dmah, DRM_MEM_DMA);
- dev->sg->dmah = NULL;
-}
-
-int
-drm_ati_pcigart_cleanup(struct drm_device *dev,
- struct drm_ati_pcigart_info *gart_info)
-{
- /* we need to support large memory configurations */
- if (dev->sg == NULL) {
- DRM_ERROR("no scatter/gather memory!\n");
- return 0;
- }
-
- if (gart_info->bus_addr) {
- if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
- gart_info->bus_addr = 0;
- if (dev->sg->dmah)
- drm_ati_free_pcigart_table(dev, gart_info);
- }
- }
-
- return 1;
-}
-
-int
-drm_ati_pcigart_init(struct drm_device *dev,
- struct drm_ati_pcigart_info *gart_info)
-{
- void *address = NULL;
- unsigned long pages;
- u32 *pci_gart, page_base;
- dma_addr_t bus_address = 0;
- dma_addr_t entry_addr;
- int i, j, ret = 0;
- int max_pages;
-
- /* we need to support large memory configurations */
- if (dev->sg == NULL) {
- 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 = (void *)dev->sg->dmah->vaddr;
- bus_address = dev->sg->dmah->busaddr;
- } else {
- address = gart_info->addr;
- bus_address = gart_info->bus_addr;
- DRM_DEBUG("PCI: Gart Table: VRAM %08X mapped at %08lX\n",
- (unsigned int)bus_address, (unsigned long)address);
- }
-
- pci_gart = (u32 *) address;
-
- max_pages = (gart_info->table_size / sizeof(u32));
- pages = (dev->sg->pages <= max_pages)
- ? dev->sg->pages : max_pages;
-
- memset(pci_gart, 0, max_pages * sizeof(u32));
-
- KASSERT(PAGE_SIZE >= ATI_PCIGART_PAGE_SIZE, ("page size too small"));
-
- for (i = 0; i < pages; i++) {
- entry_addr = dev->sg->busaddr[i];
- for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
- page_base = (u32) entry_addr & ATI_PCIGART_PAGE_MASK;
- switch(gart_info->gart_reg_if) {
- case DRM_ATI_GART_IGP:
- page_base |=
- (upper_32_bits(entry_addr) & 0xff) << 4;
- page_base |= 0xc;
- break;
- case DRM_ATI_GART_PCIE:
- page_base >>= 8;
- page_base |=
- (upper_32_bits(entry_addr) & 0xff) << 24;
- page_base |= ATI_PCIE_READ | ATI_PCIE_WRITE;
- break;
- default:
- case DRM_ATI_GART_PCI:
- break;
- }
- *pci_gart = cpu_to_le32(page_base);
- pci_gart++;
- entry_addr += ATI_PCIGART_PAGE_SIZE;
- }
- }
-
- ret = 1;
-
- done:
- gart_info->addr = address;
- gart_info->bus_addr = bus_address;
- return ret;
-}
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