void
nvc0_ram_put(struct nouveau_fb *pfb, struct nouveau_mem **pmem)
{
struct nouveau_ltcg *ltcg = nouveau_ltcg(pfb);
if ((*pmem)->tag)
ltcg->tags_free(ltcg, &(*pmem)->tag);
nv50_ram_put(pfb, pmem);
}
void
nvc0_ram_put(struct nouveau_fb *pfb, struct nouveau_mem **pmem)
{
struct nouveau_ltcg *ltcg = nouveau_ltcg(pfb);
struct nouveau_mem *mem = *pmem;
*pmem = NULL;
if (unlikely(mem == NULL))
return;
mutex_lock(&pfb->base.mutex);
if (mem->tag)
ltcg->tags_free(ltcg, &mem->tag);
__nv50_ram_put(pfb, mem);
mutex_unlock(&pfb->base.mutex);
kfree(mem);
}
int
nvc0_ram_get(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin,
u32 memtype, struct nouveau_mem **pmem)
{
struct nouveau_mm *mm = &pfb->vram;
struct nouveau_mm_node *r;
struct nouveau_mem *mem;
int type = (memtype & 0x0ff);
int back = (memtype & 0x800);
const bool comp = nvc0_pte_storage_type_map[type] != type;
int ret;
size >>= 12;
align >>= 12;
ncmin >>= 12;
if (!ncmin)
ncmin = size;
mem = kzalloc(sizeof(*mem), GFP_KERNEL);
if (!mem)
return -ENOMEM;
INIT_LIST_HEAD(&mem->regions);
mem->size = size;
mutex_lock(&pfb->base.mutex);
if (comp) {
struct nouveau_ltcg *ltcg = nouveau_ltcg(pfb);
/* compression only works with lpages */
if (align == (1 << (17 - 12))) {
int n = size >> 5;
ltcg->tags_alloc(ltcg, n, &mem->tag);
}
if (unlikely(!mem->tag))
type = nvc0_pte_storage_type_map[type];
}