int ion_system_contig_heap_map_iommu(struct ion_buffer *buffer,
struct ion_iommu_map *data,
unsigned int domain_num,
unsigned int partition_num,
unsigned long align,
unsigned long iova_length,
unsigned long flags)
{
int ret = 0;
struct iommu_domain *domain;
unsigned long extra;
struct scatterlist *sglist = 0;
struct page *page = 0;
int prot = IOMMU_WRITE | IOMMU_READ;
prot |= ION_IS_CACHED(flags) ? IOMMU_CACHE : 0;
if (!ION_IS_CACHED(flags))
return -EINVAL;
if (!msm_use_iommu()) {
data->iova_addr = virt_to_phys(buffer->vaddr);
return 0;
}
data->mapped_size = iova_length;
extra = iova_length - buffer->size;
data->iova_addr = msm_allocate_iova_address(domain_num, partition_num,
data->mapped_size, align);
if (!data->iova_addr) {
ret = -ENOMEM;
goto out;
}
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
ret = -ENOMEM;
goto out1;
}
page = virt_to_page(buffer->vaddr);
sglist = vmalloc(sizeof(*sglist));
if (!sglist)
goto out1;
sg_init_table(sglist, 1);
sg_set_page(sglist, page, buffer->size, 0);
ret = iommu_map_range(domain, data->iova_addr, sglist,
buffer->size, prot);
if (ret) {
pr_err("%s: could not map %lx in domain %p\n",
__func__, data->iova_addr, domain);
goto out1;
}
if (extra) {
unsigned long extra_iova_addr = data->iova_addr + buffer->size;
ret = msm_iommu_map_extra(domain, extra_iova_addr, extra, SZ_4K,
prot);
if (ret)
goto out2;
}
vfree(sglist);
return ret;
out2:
iommu_unmap_range(domain, data->iova_addr, buffer->size);
out1:
vfree(sglist);
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
out:
return ret;
}
int ion_cma_map_iommu(struct ion_buffer *buffer,
struct ion_iommu_map *data,
unsigned int domain_num,
unsigned int partition_num,
unsigned long align,
unsigned long iova_length,
unsigned long flags)
{
int ret = 0;
struct iommu_domain *domain;
unsigned long extra;
unsigned long extra_iova_addr;
struct ion_cma_buffer_info *info = buffer->priv_virt;
struct sg_table *table = info->table;
int prot = IOMMU_WRITE | IOMMU_READ;
if (!msm_use_iommu()) {
data->iova_addr = info->handle;
data->mapped_size = iova_length;
return 0;
}
data->mapped_size = iova_length;
extra = iova_length - buffer->size;
ret = msm_allocate_iova_address(domain_num, partition_num,
data->mapped_size, align,
&data->iova_addr);
if (ret)
goto out;
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
ret = -EINVAL;
goto out1;
}
ret = iommu_map_range(domain, data->iova_addr, table->sgl,
buffer->size, prot);
if (ret) {
pr_err("%s: could not map %lx in domain %p\n",
__func__, data->iova_addr, domain);
goto out1;
}
extra_iova_addr = data->iova_addr + buffer->size;
if (extra) {
ret = msm_iommu_map_extra(domain, extra_iova_addr, extra, SZ_4K,
prot);
if (ret)
goto out2;
}
return ret;
out2:
iommu_unmap_range(domain, data->iova_addr, buffer->size);
out1:
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
out:
return ret;
}
int ion_system_heap_map_iommu(struct ion_buffer *buffer,
struct ion_iommu_map *data,
unsigned int domain_num,
unsigned int partition_num,
unsigned long align,
unsigned long iova_length,
unsigned long flags)
{
int ret = 0, i;
struct iommu_domain *domain;
unsigned long extra;
unsigned long extra_iova_addr;
struct page *page;
int npages = buffer->size >> PAGE_SHIFT;
void *vaddr = buffer->priv_virt;
struct scatterlist *sglist = 0;
int prot = IOMMU_WRITE | IOMMU_READ;
prot |= ION_IS_CACHED(flags) ? IOMMU_CACHE : 0;
if (!ION_IS_CACHED(flags))
return -EINVAL;
if (!msm_use_iommu())
return -EINVAL;
data->mapped_size = iova_length;
extra = iova_length - buffer->size;
data->iova_addr = msm_allocate_iova_address(domain_num, partition_num,
data->mapped_size, align);
if (!data->iova_addr) {
ret = -ENOMEM;
goto out;
}
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
ret = -ENOMEM;
goto out1;
}
sglist = vmalloc(sizeof(*sglist) * npages);
if (!sglist) {
ret = -ENOMEM;
goto out1;
}
sg_init_table(sglist, npages);
for (i = 0; i < npages; i++) {
page = vmalloc_to_page(vaddr);
if (!page)
goto out1;
sg_set_page(&sglist[i], page, PAGE_SIZE, 0);
vaddr += PAGE_SIZE;
}
ret = iommu_map_range(domain, data->iova_addr, sglist,
buffer->size, prot);
if (ret) {
pr_err("%s: could not map %lx in domain %p\n",
__func__, data->iova_addr, domain);
goto out1;
}
extra_iova_addr = data->iova_addr + buffer->size;
if (extra) {
ret = msm_iommu_map_extra(domain, extra_iova_addr, extra, SZ_4K,
prot);
if (ret)
goto out2;
}
vfree(sglist);
return ret;
out2:
iommu_unmap_range(domain, data->iova_addr, buffer->size);
out1:
vfree(sglist);
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
out:
return ret;
}
static int ion_cp_heap_map_iommu(struct ion_buffer *buffer,
struct ion_iommu_map *data,
unsigned int domain_num,
unsigned int partition_num,
unsigned long align,
unsigned long iova_length,
unsigned long flags)
{
struct iommu_domain *domain;
int ret = 0;
unsigned long extra;
struct scatterlist *sglist = 0;
struct ion_cp_heap *cp_heap =
container_of(buffer->heap, struct ion_cp_heap, heap);
int prot = IOMMU_WRITE | IOMMU_READ;
prot |= ION_IS_CACHED(flags) ? IOMMU_CACHE : 0;
data->mapped_size = iova_length;
if (!msm_use_iommu()) {
data->iova_addr = buffer->priv_phys;
return 0;
}
if (cp_heap->iommu_iova[domain_num]) {
/* Already mapped. */
unsigned long offset = buffer->priv_phys - cp_heap->base;
data->iova_addr = cp_heap->iommu_iova[domain_num] + offset;
return 0;
} else if (cp_heap->iommu_map_all) {
ret = iommu_map_all(domain_num, cp_heap, partition_num, prot);
if (!ret) {
unsigned long offset =
buffer->priv_phys - cp_heap->base;
data->iova_addr =
cp_heap->iommu_iova[domain_num] + offset;
cp_heap->iommu_partition[domain_num] = partition_num;
/*
clear delayed map flag so that we don't interfere
with this feature (we are already delaying).
*/
data->flags &= ~ION_IOMMU_UNMAP_DELAYED;
return 0;
} else {
cp_heap->iommu_iova[domain_num] = 0;
cp_heap->iommu_partition[domain_num] = 0;
return ret;
}
}
extra = iova_length - buffer->size;
data->iova_addr = msm_allocate_iova_address(domain_num, partition_num,
data->mapped_size, align);
if (!data->iova_addr) {
ret = -ENOMEM;
goto out;
}
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
ret = -ENOMEM;
goto out1;
}
sglist = ion_cp_heap_create_sglist(buffer);
if (IS_ERR_OR_NULL(sglist)) {
ret = -ENOMEM;
goto out1;
}
ret = iommu_map_range(domain, data->iova_addr, sglist,
buffer->size, prot);
if (ret) {
pr_err("%s: could not map %lx in domain %p\n",
__func__, data->iova_addr, domain);
goto out1;
}
if (extra) {
unsigned long extra_iova_addr = data->iova_addr + buffer->size;
ret = msm_iommu_map_extra(domain, extra_iova_addr, extra,
SZ_4K, prot);
if (ret)
goto out2;
}
vfree(sglist);
return ret;
out2:
iommu_unmap_range(domain, data->iova_addr, buffer->size);
out1:
if (!IS_ERR_OR_NULL(sglist))
vfree(sglist);
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
out:
return ret;
}
static int iommu_map_all(unsigned long domain_num, struct ion_cp_heap *cp_heap,
int partition, unsigned long prot)
{
unsigned long left_to_map = cp_heap->total_size;
unsigned long order = get_order(SZ_64K);
unsigned long page_size = SZ_64K;
int ret_value = 0;
unsigned long virt_addr_len = cp_heap->total_size;
struct iommu_domain *domain = msm_get_iommu_domain(domain_num);
/* If we are mapping into the video domain we need to map twice the
* size of the heap to account for prefetch issue in video core.
*/
if (domain_num == cp_heap->iommu_2x_map_domain)
virt_addr_len <<= 1;
if (cp_heap->total_size & (SZ_64K-1)) {
pr_err("Heap size is not aligned to 64K, cannot map into IOMMU\n");
ret_value = -EINVAL;
}
if (cp_heap->base & (SZ_64K-1)) {
pr_err("Heap physical address is not aligned to 64K, cannot map into IOMMU\n");
ret_value = -EINVAL;
}
if (!ret_value && domain) {
unsigned long temp_phys = cp_heap->base;
unsigned long temp_iova =
msm_allocate_iova_address(domain_num, partition,
virt_addr_len, SZ_64K);
if (!temp_iova) {
pr_err("%s: could not allocate iova from domain %lu, partition %d\n",
__func__, domain_num, partition);
ret_value = -ENOMEM;
goto out;
}
cp_heap->iommu_iova[domain_num] = temp_iova;
while (left_to_map) {
int ret = iommu_map(domain, temp_iova, temp_phys,
order, prot);
if (ret) {
pr_err("%s: could not map %lx in domain %p, error: %d\n",
__func__, temp_iova, domain, ret);
ret_value = -EAGAIN;
goto free_iova;
}
temp_iova += page_size;
temp_phys += page_size;
left_to_map -= page_size;
}
if (domain_num == cp_heap->iommu_2x_map_domain)
ret_value = msm_iommu_map_extra(domain, temp_iova,
cp_heap->total_size,
SZ_64K, prot);
if (ret_value)
goto free_iova;
} else {
pr_err("Unable to get IOMMU domain %lu\n", domain_num);
ret_value = -ENOMEM;
}
goto out;
free_iova:
msm_free_iova_address(cp_heap->iommu_iova[domain_num], domain_num,
partition, virt_addr_len);
out:
return ret_value;
}
static int ion_cp_heap_map_iommu(struct ion_buffer *buffer,
struct ion_iommu_map *data,
unsigned int domain_num,
unsigned int partition_num,
unsigned long align,
unsigned long iova_length,
unsigned long flags)
{
//HTC_START Jason Huang 20120419
//HTC_START Jason Huang 20120530 --- Add unsigned long temp_phys and int i back.
unsigned long temp_phys, temp_iova;
struct iommu_domain *domain;
int i = 0, ret = 0;
unsigned long extra;
//HTC_END
data->mapped_size = iova_length;
if (!msm_use_iommu()) {
data->iova_addr = buffer->priv_phys;
return 0;
}
extra = iova_length - buffer->size;
//HTC_START Jason Huang 20120530 --- For buffers from ION CP MM heap, always 1M-alignment.
if (buffer->heap->id == ION_CP_MM_HEAP_ID)
{
align = SZ_1M;
}
//HTC_END
data->iova_addr = msm_allocate_iova_address(domain_num, partition_num,
data->mapped_size, align);
if (!data->iova_addr) {
ret = -ENOMEM;
goto out;
}
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
ret = -ENOMEM;
goto out1;
}
//HTC_START Jason Huang 20120419 --- Change to htc_iommu_map_range for performance improvement.
/*HTC_START Jason Huang 20120530 --- For buffers from ION CP MM heap, do 1M mapping by iommu_map().
Neither htc_iommu_map_range() nor iommu_map_range() supports 1M mapping.*/
if (buffer->heap->id == ION_CP_MM_HEAP_ID)
{
temp_iova = data->iova_addr;
temp_phys = buffer->priv_phys;
for (i = buffer->size; i > 0; i -= SZ_1M, temp_iova += SZ_1M,
temp_phys += SZ_1M) {
ret = iommu_map(domain, temp_iova, temp_phys,
get_order(SZ_1M),
ION_IS_CACHED(flags) ? 1 : 0);
if (ret) {
pr_err("%s: could not map %lx to %lx in domain %p\n",
__func__, temp_iova, temp_phys, domain);
goto out2;
}
}
}
else
{
ret = htc_iommu_map_range(domain, data->iova_addr, buffer->priv_phys, buffer->size, ION_IS_CACHED(flags) ? 1 : 0);
if (ret) {
ret = -ENOMEM;
goto out1;
}
temp_iova = data->iova_addr + buffer->size;
}
/*
temp_iova = data->iova_addr;
temp_phys = buffer->priv_phys;
for (i = buffer->size; i > 0; i -= SZ_4K, temp_iova += SZ_4K,
temp_phys += SZ_4K) {
ret = iommu_map(domain, temp_iova, temp_phys,
get_order(SZ_4K),
ION_IS_CACHED(flags) ? 1 : 0);
if (ret) {
pr_err("%s: could not map %lx to %lx in domain %p\n",
__func__, temp_iova, temp_phys, domain);
goto out2;
}
}
*/
//HTC_END
if (extra && (msm_iommu_map_extra(domain, temp_iova, extra, flags) < 0))
goto out2;
return 0;
//HTC_START Jason Huang 20120419
//HTC_START Jason Huang 20120530
out2:
if (buffer->heap->id == ION_CP_MM_HEAP_ID)
{
for ( ; i < buffer->size; i += SZ_1M, temp_iova -= SZ_1M)
iommu_unmap(domain, temp_iova, get_order(SZ_1M));
}
else
{
iommu_unmap_range(domain, data->iova_addr, buffer->size);
}
/*
for ( ; i < buffer->size; i += SZ_4K, temp_iova -= SZ_4K)
iommu_unmap(domain, temp_iova, get_order(SZ_4K));
*/
//HTC_END
out1:
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
out:
return ret;
}
static int ion_cp_heap_map_iommu(struct ion_buffer *buffer,
struct ion_iommu_map *data,
unsigned int domain_num,
unsigned int partition_num,
unsigned long align,
unsigned long iova_length,
unsigned long flags)
{
unsigned long temp_phys, temp_iova;
struct iommu_domain *domain;
int i, ret = 0;
unsigned long extra;
data->mapped_size = iova_length;
if (!msm_use_iommu()) {
data->iova_addr = buffer->priv_phys;
return 0;
}
extra = iova_length - buffer->size;
data->iova_addr = msm_allocate_iova_address(domain_num, partition_num,
data->mapped_size, align);
if (!data->iova_addr) {
ret = -ENOMEM;
goto out;
}
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
ret = -ENOMEM;
goto out1;
}
temp_iova = data->iova_addr;
temp_phys = buffer->priv_phys;
for (i = buffer->size; i > 0; i -= SZ_4K, temp_iova += SZ_4K,
temp_phys += SZ_4K) {
ret = iommu_map(domain, temp_iova, temp_phys,
get_order(SZ_4K),
ION_IS_CACHED(flags) ? 1 : 0);
if (ret) {
pr_err("%s: could not map %lx to %lx in domain %p\n",
__func__, temp_iova, temp_phys, domain);
goto out2;
}
}
if (extra && (msm_iommu_map_extra(domain, temp_iova, extra, flags) < 0))
goto out2;
return 0;
out2:
for ( ; i < buffer->size; i += SZ_4K, temp_iova -= SZ_4K)
iommu_unmap(domain, temp_iova, get_order(SZ_4K));
out1:
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
out:
return ret;
}