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Diffstat (limited to 'linux-core/ati_pcigart.c')
-rw-r--r--linux-core/ati_pcigart.c196
1 files changed, 12 insertions, 184 deletions
diff --git a/linux-core/ati_pcigart.c b/linux-core/ati_pcigart.c
index 97a5dfb2..68029635 100644
--- a/linux-core/ati_pcigart.c
+++ b/linux-core/ati_pcigart.c
@@ -35,45 +35,6 @@
# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
-static __inline__ void insert_page_into_table(struct drm_ati_pcigart_info *info, u32 page_base, u32 *pci_gart)
-{
- switch(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;
- }
-}
-
-static __inline__ u32 get_page_base_from_table(struct drm_ati_pcigart_info *info, u32 *pci_gart)
-{
- u32 retval;
- switch(info->gart_reg_if) {
- case DRM_ATI_GART_IGP:
- retval = *pci_gart;
- retval &= ~0xc;
- break;
- case DRM_ATI_GART_PCIE:
- retval = *pci_gart;
- retval &= ~0xc;
- retval <<= 8;
- break;
- default:
- case DRM_ATI_GART_PCI:
- retval = *pci_gart;
- break;
- }
- return retval;
-}
-
-
-
static void *drm_ati_alloc_pcigart_table(int order)
{
unsigned long address;
@@ -246,7 +207,18 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
page_base = (u32) entry->busaddr[i];
for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) {
- insert_page_into_table(gart_info, page_base, pci_gart);
+ 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;
}
@@ -266,147 +238,3 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
return ret;
}
EXPORT_SYMBOL(drm_ati_pcigart_init);
-
-static int ati_pcigart_needs_unbind_cache_adjust(struct drm_ttm_backend *backend)
-{
- return ((backend->flags & DRM_BE_FLAG_BOUND_CACHED) ? 0 : 1);
-}
-
-static int ati_pcigart_populate(struct drm_ttm_backend *backend,
- unsigned long num_pages,
- struct page **pages,
- struct page *dummy_page)
-{
- ati_pcigart_ttm_backend_t *atipci_be =
- container_of(backend, ati_pcigart_ttm_backend_t, backend);
-
- DRM_ERROR("%ld\n", num_pages);
- atipci_be->pages = pages;
- atipci_be->num_pages = num_pages;
- atipci_be->populated = 1;
- return 0;
-}
-
-static int ati_pcigart_bind_ttm(struct drm_ttm_backend *backend,
- struct drm_bo_mem_reg *bo_mem)
-{
- ati_pcigart_ttm_backend_t *atipci_be =
- container_of(backend, ati_pcigart_ttm_backend_t, backend);
- off_t j;
- int i;
- struct drm_ati_pcigart_info *info = atipci_be->gart_info;
- u32 *pci_gart;
- u32 page_base;
- unsigned long offset = bo_mem->mm_node->start;
- pci_gart = info->addr;
-
- DRM_ERROR("Offset is %08lX\n", bo_mem->mm_node->start);
- j = offset;
- while (j < (offset + atipci_be->num_pages)) {
- if (get_page_base_from_table(info, pci_gart+j))
- return -EBUSY;
- j++;
- }
-
- for (i = 0, j = offset; i < atipci_be->num_pages; i++, j++) {
- struct page *cur_page = atipci_be->pages[i];
- /* write value */
- page_base = page_to_phys(cur_page);
- insert_page_into_table(info, page_base, pci_gart + j);
- }
-
-#if defined(__i386__) || defined(__x86_64__)
- wbinvd();
-#else
- mb();
-#endif
-
- atipci_be->gart_flush_fn(atipci_be->dev);
-
- atipci_be->bound = 1;
- atipci_be->offset = offset;
- /* need to traverse table and add entries */
- DRM_DEBUG("\n");
- return 0;
-}
-
-static int ati_pcigart_unbind_ttm(struct drm_ttm_backend *backend)
-{
- ati_pcigart_ttm_backend_t *atipci_be =
- container_of(backend, ati_pcigart_ttm_backend_t, backend);
- struct drm_ati_pcigart_info *info = atipci_be->gart_info;
- unsigned long offset = atipci_be->offset;
- int i;
- off_t j;
- u32 *pci_gart = info->addr;
-
- DRM_DEBUG("\n");
-
- if (atipci_be->bound != 1)
- return -EINVAL;
-
- for (i = 0, j = offset; i < atipci_be->num_pages; i++, j++) {
- *(pci_gart + j) = 0;
- }
- atipci_be->gart_flush_fn(atipci_be->dev);
- atipci_be->bound = 0;
- atipci_be->offset = 0;
- return 0;
-}
-
-static void ati_pcigart_clear_ttm(struct drm_ttm_backend *backend)
-{
- ati_pcigart_ttm_backend_t *atipci_be =
- container_of(backend, ati_pcigart_ttm_backend_t, backend);
-
- DRM_DEBUG("\n");
- if (atipci_be->pages) {
- backend->func->unbind(backend);
- atipci_be->pages = NULL;
-
- }
- atipci_be->num_pages = 0;
-}
-
-static void ati_pcigart_destroy_ttm(struct drm_ttm_backend *backend)
-{
- ati_pcigart_ttm_backend_t *atipci_be;
- if (backend) {
- DRM_DEBUG("\n");
- atipci_be = container_of(backend, ati_pcigart_ttm_backend_t, backend);
- if (atipci_be) {
- if (atipci_be->pages) {
- backend->func->clear(backend);
- }
- drm_ctl_free(atipci_be, sizeof(*atipci_be), DRM_MEM_TTM);
- }
- }
-}
-
-static struct drm_ttm_backend_func ati_pcigart_ttm_backend =
-{
- .needs_ub_cache_adjust = ati_pcigart_needs_unbind_cache_adjust,
- .populate = ati_pcigart_populate,
- .clear = ati_pcigart_clear_ttm,
- .bind = ati_pcigart_bind_ttm,
- .unbind = ati_pcigart_unbind_ttm,
- .destroy = ati_pcigart_destroy_ttm,
-};
-
-struct drm_ttm_backend *ati_pcigart_init_ttm(struct drm_device *dev, struct drm_ati_pcigart_info *info, void (*gart_flush_fn)(struct drm_device *dev))
-{
- ati_pcigart_ttm_backend_t *atipci_be;
-
- atipci_be = drm_ctl_calloc(1, sizeof (*atipci_be), DRM_MEM_TTM);
- if (!atipci_be)
- return NULL;
-
- atipci_be->populated = 0;
- atipci_be->backend.func = &ati_pcigart_ttm_backend;
- atipci_be->gart_info = info;
- atipci_be->gart_flush_fn = gart_flush_fn;
- atipci_be->dev = dev;
-
- return &atipci_be->backend;
-}
-EXPORT_SYMBOL(ati_pcigart_init_ttm);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 03:17:47 +0000