static int get_device_address(struct smem_client *smem_client,
struct ion_handle *hndl, unsigned long align,
dma_addr_t *iova, unsigned long *buffer_size,
u32 flags, enum hal_buffer buffer_type)
{
int rc = 0;
int domain, partition;
struct ion_client *clnt = NULL;
if (!iova || !buffer_size || !hndl || !smem_client) {
dprintk(VIDC_ERR, "Invalid params: %pK, %pK, %pK, %pK\n",
smem_client, hndl, iova, buffer_size);
return -EINVAL;
}
clnt = smem_client->clnt;
if (!clnt) {
dprintk(VIDC_ERR, "Invalid client\n");
return -EINVAL;
}
rc = msm_smem_get_domain_partition(smem_client, flags, buffer_type,
&domain, &partition);
if (rc) {
dprintk(VIDC_ERR, "Failed to get domain and partition: %d\n",
rc);
goto mem_domain_get_failed;
}
if (flags & SMEM_SECURE) {
rc = msm_ion_secure_buffer(clnt, hndl,
get_tz_usage(smem_client, buffer_type), 0);
if (rc) {
dprintk(VIDC_ERR, "Failed to secure memory\n");
goto mem_domain_get_failed;
}
}
if (is_iommu_present(smem_client->res)) {
dprintk(VIDC_DBG,
"Calling ion_map_iommu - domain: %d, partition: %d\n",
domain, partition);
rc = ion_map_iommu(clnt, hndl, domain, partition, align,
0, iova, buffer_size, 0, 0);
} else {
dprintk(VIDC_DBG, "Using physical memory address\n");
rc = ion_phys(clnt, hndl, iova, (size_t *)buffer_size);
}
if (rc) {
dprintk(VIDC_ERR, "ion memory map failed - %d\n", rc);
goto mem_map_failed;
}
return 0;
mem_map_failed:
if (flags & SMEM_SECURE)
msm_ion_unsecure_buffer(clnt, hndl);
mem_domain_get_failed:
return rc;
}
static void free_ion_mem(struct smem_client *client, struct msm_smem *mem)
{
int domain, partition, rc;
rc = msm_smem_get_domain_partition((void *)client, mem->flags,
mem->buffer_type, &domain, &partition);
if (rc) {
dprintk(VIDC_ERR, "Failed to get domain, partition: %d", rc);
return;
}
if (mem->device_addr)
put_device_address(client,
mem->smem_priv, domain, partition, mem->flags);
if (mem->kvaddr)
ion_unmap_kernel(client->clnt, mem->smem_priv);
if (mem->smem_priv)
ion_free(client->clnt, mem->smem_priv);
}
static void free_ion_mem(struct smem_client *client, struct msm_smem *mem)
{
int domain, partition, rc;
dprintk(VIDC_DBG,
"%s: ion_handle = 0x%pK, device_addr = 0x%x, size = %d, kvaddr = 0x%pK, buffer_type = %d\n",
__func__, mem->smem_priv, (u32)mem->device_addr,
mem->size, mem->kvaddr, mem->buffer_type);
rc = msm_smem_get_domain_partition((void *)client, mem->flags,
mem->buffer_type, &domain, &partition);
if (rc) {
dprintk(VIDC_ERR, "Failed to get domain, partition: %d\n", rc);
return;
}
if (mem->device_addr)
put_device_address(client,
mem->smem_priv, domain, partition, mem->flags);
if (mem->kvaddr)
ion_unmap_kernel(client->clnt, mem->smem_priv);
if (mem->smem_priv)
ion_free(client->clnt, mem->smem_priv);
}
