diff options
Diffstat (limited to 'linux-core/ati_pcigart.c')
| -rw-r--r-- | linux-core/ati_pcigart.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/linux-core/ati_pcigart.c b/linux-core/ati_pcigart.c index 108e1875..ad47ed25 100644 --- a/linux-core/ati_pcigart.c +++ b/linux-core/ati_pcigart.c @@ -234,6 +234,19 @@ static int ati_pcigart_needs_unbind_cache_adjust(drm_ttm_backend_t *backend) return ((backend->flags & DRM_BE_FLAG_BOUND_CACHED) ? 0 : 1); } +void ati_pcigart_alloc_page_array(size_t size, struct ati_pcigart_memory *mem) +{ + mem->memory = NULL; + mem->flags = 0; + + if (size <= 2*PAGE_SIZE) + mem->memory = kmalloc(size, GFP_KERNEL | __GFP_NORETRY); + if (mem->memory == NULL) { + mem->memory = vmalloc(size); + mem->flags |= ATI_PCIGART_FLAG_VMALLOC; + } +} + static int ati_pcigart_populate(drm_ttm_backend_t *backend, unsigned long num_pages, struct page **pages) @@ -241,6 +254,7 @@ static int ati_pcigart_populate(drm_ttm_backend_t *backend, ati_pcigart_ttm_priv *atipci_priv = (ati_pcigart_ttm_priv *)backend->private; struct page **cur_page, **last_page = pages + num_pages; struct ati_pcigart_memory *mem; + unsigned long alloc_size = num_pages * sizeof(struct page *); DRM_DEBUG("%d\n", num_pages); if (drm_alloc_memctl(num_pages * sizeof(void *))) @@ -252,7 +266,11 @@ static int ati_pcigart_populate(drm_ttm_backend_t *backend, return -1; } - mem->page_count = num_pages; + ati_pcigart_alloc_page_array(alloc_size, mem); + mem->page_count = 0; + for (cur_page = pages; cur_page < last_page; ++cur_page) { + mem->memory[mem->page_count++] = page_to_phys(*cur_page); + } atipci_priv->mem = mem; return 0; } @@ -262,7 +280,19 @@ static int ati_pcigart_bind_ttm(drm_ttm_backend_t *backend, int cached) { ati_pcigart_ttm_priv *atipci_priv = (ati_pcigart_ttm_priv *)backend->private; + struct ati_pcigart_memory *mem = atipci_priv->mem; + off_t j; + + j = offset; + while (j < (pg_start + mem->page_count)) { + j++; + } + + for (i = 0, j = offset; i < mem->page_count; i++, j++) { + /* write value */ + } + /* need to traverse table and add entries */ DRM_DEBUG("\n"); return -1; } |