static int
msm_buspm_dev_alloc(struct file *filp, struct buspm_alloc_params data)
{
unsigned long paddr;
void *vaddr;
struct msm_buspm_map_dev *dev = filp->private_data;
if (dev->vaddr)
msm_buspm_dev_free(filp);
vaddr = allocate_contiguous_ebi(data.size, PAGE_SIZE, 0);
paddr = (vaddr) ? memory_pool_node_paddr(vaddr) : 0L;
if (vaddr == NULL) {
pr_err("allocation of 0x%x bytes failed", data.size);
return -ENOMEM;
}
dev->vaddr = vaddr;
dev->paddr = paddr;
dev->buflen = data.size;
filp->f_pos = 0;
pr_debug("virt addr = 0x%p\n", dev->vaddr);
pr_debug("phys addr = 0x%lx\n", dev->paddr);
return 0;
}
static int ion_cp_change_mem_v2(unsigned int phy_base, unsigned int size,
void *data, int lock)
{
enum cp_mem_usage usage = (enum cp_mem_usage) data;
unsigned long *chunk_list;
int nchunks;
int ret;
int i;
if (usage < 0 || usage >= MAX_USAGE)
return -EINVAL;
if (!IS_ALIGNED(size, V2_CHUNK_SIZE)) {
pr_err("%s: heap size is not aligned to %x\n",
__func__, V2_CHUNK_SIZE);
return -EINVAL;
}
nchunks = size / V2_CHUNK_SIZE;
chunk_list = allocate_contiguous_ebi(sizeof(unsigned long)*nchunks,
SZ_4K, 0);
if (!chunk_list)
return -ENOMEM;
for (i = 0; i < nchunks; i++)
chunk_list[i] = phy_base + i * V2_CHUNK_SIZE;
ret = ion_cp_change_chunks_state(memory_pool_node_paddr(chunk_list),
nchunks, V2_CHUNK_SIZE, usage, lock);
free_contiguous_memory(chunk_list);
return ret;
}
