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WIP more code for radeon

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David Airlie 2007-06-01 18:12:45 +10:00
parent 29ac7b1fe3
commit 704ca06389
1 changed files with 31 additions and 1 deletions
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32
linux-core/ati_pcigart.c
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@ -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;
}