static void ion_cp_heap_unmap_iommu(struct ion_iommu_map *data)
{
int i;
unsigned long temp_iova;
unsigned int domain_num;
unsigned int partition_num;
struct iommu_domain *domain;
if (!msm_use_iommu())
return;
domain_num = iommu_map_domain(data);
partition_num = iommu_map_partition(data);
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
WARN(1, "Could not get domain %d. Corruption?\n", domain_num);
return;
}
temp_iova = data->iova_addr;
for (i = data->mapped_size; i > 0; i -= SZ_4K, temp_iova += SZ_4K)
iommu_unmap(domain, temp_iova, get_order(SZ_4K));
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
return;
}
int mdss_iommu_init(void)
{
struct iommu_domain *domain;
int domain_idx, i;
domain_idx = msm_register_domain(&mdp_iommu_layout);
if (IS_ERR_VALUE(domain_idx))
return -EINVAL;
domain = msm_get_iommu_domain(domain_idx);
if (!domain) {
pr_err("unable to get iommu domain(%d)\n", domain_idx);
return -EINVAL;
}
iommu_set_fault_handler(domain, mdss_iommu_fault_handler);
for (i = 0; i < ARRAY_SIZE(mdp_iommu_ctx); i++) {
mdp_iommu_ctx[i].ctx = msm_iommu_get_ctx(mdp_iommu_ctx[i].name);
if (!mdp_iommu_ctx[i].ctx) {
pr_warn("unable to get iommu ctx(%s)\n",
mdp_iommu_ctx[i].name);
return -EINVAL;
}
}
mdss_res->iommu_domain = domain_idx;
return 0;
}
int mdss_iommu_dettach(struct mdss_data_type *mdata)
{
struct iommu_domain *domain;
struct mdss_iommu_map_type *iomap;
int i;
if (!mdata->iommu_attached) {
pr_debug("mdp iommu already dettached\n");
return 0;
}
for (i = 0; i < MDSS_IOMMU_MAX_DOMAIN; i++) {
iomap = mdata->iommu_map + i;
domain = msm_get_iommu_domain(iomap->domain_idx);
if (!domain) {
pr_err("unable to get iommu domain(%d)\n",
iomap->domain_idx);
continue;
}
iommu_detach_device(domain, iomap->ctx);
}
mdata->iommu_attached = false;
return 0;
}
void ion_cma_unmap_iommu(struct ion_iommu_map *data)
{
unsigned int domain_num;
unsigned int partition_num;
struct iommu_domain *domain;
if (!msm_use_iommu())
return;
domain_num = iommu_map_domain(data);
partition_num = iommu_map_partition(data);
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
WARN(1, "Could not get domain %d. Corruption?\n", domain_num);
return;
}
iommu_unmap_range(domain, data->iova_addr, data->mapped_size);
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
return;
}
static void ion_cp_heap_unmap_iommu(struct ion_iommu_map *data)
{
unsigned int domain_num;
unsigned int partition_num;
struct iommu_domain *domain;
struct ion_cp_heap *cp_heap =
container_of(data->buffer->heap, struct ion_cp_heap, heap);
if (!msm_use_iommu())
return;
domain_num = iommu_map_domain(data);
/* If we are mapping everything we'll wait to unmap until everything
is freed. */
if (cp_heap->iommu_iova[domain_num])
return;
partition_num = iommu_map_partition(data);
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
WARN(1, "Could not get domain %d. Corruption?\n", domain_num);
return;
}
iommu_unmap_range(domain, data->iova_addr, data->mapped_size);
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
return;
}
int mdss_iommu_attach(struct mdss_data_type *mdata)
{
struct iommu_domain *domain;
struct mdss_iommu_map_type *iomap;
int i;
if (mdata->iommu_attached) {
pr_debug("mdp iommu already attached\n");
return 0;
}
for (i = 0; i < MDSS_IOMMU_MAX_DOMAIN; i++) {
iomap = mdata->iommu_map + i;
domain = msm_get_iommu_domain(iomap->domain_idx);
if (!domain) {
WARN(1, "could not attach iommu client %s to ctx %s\n",
iomap->client_name, iomap->ctx_name);
continue;
}
iommu_attach_device(domain, iomap->ctx);
}
mdata->iommu_attached = true;
complete_all(&mdata->iommu_attach_done);
return 0;
}
int mdss_iommu_attach(void)
{
struct iommu_domain *domain;
int i, domain_idx;
if (mdss_res->iommu_attached) {
pr_warn("mdp iommu already attached\n");
return 0;
}
domain_idx = mdss_get_iommu_domain();
domain = msm_get_iommu_domain(domain_idx);
if (!domain) {
pr_err("unable to get iommu domain(%d)\n", domain_idx);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(mdp_iommu_ctx); i++) {
if (iommu_attach_device(domain, mdp_iommu_ctx[i].ctx)) {
WARN(1, "could not attach iommu domain %d to ctx %s\n",
domain_idx, mdp_iommu_ctx[i].name);
return -EINVAL;
}
}
mdss_res->iommu_attached = true;
return 0;
}
static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev)
{
static struct mdp4_platform_config config = {};
#ifdef CONFIG_OF
/* TODO */
config.max_clk = 266667000;
config.iommu = iommu_domain_alloc(&platform_bus_type);
#else
if (cpu_is_apq8064())
config.max_clk = 266667000;
else
config.max_clk = 200000000;
config.iommu = msm_get_iommu_domain(DISPLAY_READ_DOMAIN);
#endif
return &config;
}
int mdss_iommu_init(struct mdss_data_type *mdata)
{
struct msm_iova_layout layout;
struct iommu_domain *domain;
struct mdss_iommu_map_type *iomap;
int i;
if (mdata->iommu_map) {
pr_warn("iommu already initialized\n");
return 0;
}
for (i = 0; i < MDSS_IOMMU_MAX_DOMAIN; i++) {
iomap = &mdss_iommu_map[i];
layout.client_name = iomap->client_name;
layout.partitions = iomap->partitions;
layout.npartitions = iomap->npartitions;
layout.is_secure = (i == MDSS_IOMMU_DOMAIN_SECURE);
iomap->domain_idx = msm_register_domain(&layout);
if (IS_ERR_VALUE(iomap->domain_idx))
return -EINVAL;
domain = msm_get_iommu_domain(iomap->domain_idx);
if (!domain) {
pr_err("unable to get iommu domain(%d)\n",
iomap->domain_idx);
return -EINVAL;
}
iommu_set_fault_handler(domain, mdss_iommu_fault_handler, NULL);
iomap->ctx = msm_iommu_get_ctx(iomap->ctx_name);
if (!iomap->ctx) {
pr_warn("unable to get iommu ctx(%s)\n",
iomap->ctx_name);
return -EINVAL;
}
}
mdata->iommu_map = mdss_iommu_map;
return 0;
}
static void iommu_unmap_all(unsigned long domain_num,
struct ion_cp_heap *cp_heap)
{
unsigned long left_to_unmap = cp_heap->total_size;
unsigned long page_size = SZ_64K;
struct iommu_domain *domain = msm_get_iommu_domain(domain_num);
if (domain) {
unsigned long temp_iova = cp_heap->iommu_iova[domain_num];
while (left_to_unmap) {
iommu_unmap(domain, temp_iova, page_size);
temp_iova += page_size;
left_to_unmap -= page_size;
}
if (domain_num == cp_heap->iommu_2x_map_domain)
msm_iommu_unmap_extra(domain, temp_iova,
cp_heap->total_size, SZ_64K);
} else {
pr_err("Unable to get IOMMU domain %lu\n", domain_num);
}
}
int mdss_iommu_dettach(void)
{
struct iommu_domain *domain;
int i, domain_idx;
if (!mdss_res->iommu_attached) {
pr_warn("mdp iommu already dettached\n");
return 0;
}
domain_idx = mdss_get_iommu_domain();
domain = msm_get_iommu_domain(domain_idx);
if (!domain) {
pr_err("unable to get iommu domain(%d)\n", domain_idx);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(mdp_iommu_ctx); i++)
iommu_detach_device(domain, mdp_iommu_ctx[i].ctx);
mdss_res->iommu_attached = false;
return 0;
}
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_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 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;
}
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;
}
static void ion_cp_heap_unmap_iommu(struct ion_iommu_map *data)
{
//HTC_START Jason Huang 20120419
//HTC_START Jason Huang 20120530 --- Add int i and unsigned long temp_iova back.
int i;
unsigned long temp_iova;
//HTC_END
unsigned int domain_num;
unsigned int partition_num;
struct iommu_domain *domain;
/*HTC_START Jason Huang 20120614 --- In IOMMU map, some client may input larger virtual addresss length (even larger than 1M-aligned buffer),
such that the actual mapped size is larger than the buffer size. In IOMMU unmap, the extra part should be
un-mapped independently, since it is not 1M mapped.*/
unsigned long extra = 0;
//HTC_END
if (!msm_use_iommu())
return;
domain_num = iommu_map_domain(data);
partition_num = iommu_map_partition(data);
domain = msm_get_iommu_domain(domain_num);
if (!domain) {
WARN(1, "Could not get domain %d. Corruption?\n", domain_num);
return;
}
//HTC_START Jason Huang 20120419
/*HTC_START Jason Huang 20120530 --- For buffers from ION CP MM heap, they are 1M mapping. Un-map by iommu_unmap().
iommu_unmap_range() doesn't supports 1M un-mapping.*/
if (data->buffer->heap->id == ION_CP_MM_HEAP_ID)
{
extra = data->mapped_size - data->buffer->size;
temp_iova = data->iova_addr;
for (i = data->buffer->size; i > 0; i -= SZ_1M, temp_iova += SZ_1M)
iommu_unmap(domain, temp_iova, get_order(SZ_1M));
if (extra)
{
iommu_unmap_range(domain, temp_iova, extra);
}
}
else
{
iommu_unmap_range(domain, data->iova_addr, data->mapped_size);
}
/*
temp_iova = data->iova_addr;
for (i = data->mapped_size; i > 0; i -= SZ_4K, temp_iova += SZ_4K)
iommu_unmap(domain, temp_iova, get_order(SZ_4K));
*/
//HTC_END
msm_free_iova_address(data->iova_addr, domain_num, partition_num,
data->mapped_size);
return;
}
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 struct msm_panel_common_pdata *mdss_mdp_populate_pdata(
struct device *dev)
{
struct msm_panel_common_pdata *pdata;
struct msm_iova_layout layout;
struct iommu_domain *domain;
struct mdss_iommu_map_type *iomap;
int i;
if (mdata->iommu_map) {
pr_warn("iommu already initialized\n");
return 0;
}
for (i = 0; i < MDSS_IOMMU_MAX_DOMAIN; i++) {
iomap = &mdss_iommu_map[i];
layout.client_name = iomap->client_name;
layout.partitions = iomap->partitions;
layout.npartitions = iomap->npartitions;
layout.is_secure = (i == MDSS_IOMMU_DOMAIN_SECURE);
iomap->domain_idx = msm_register_domain(&layout);
if (IS_ERR_VALUE(iomap->domain_idx))
return -EINVAL;
domain = msm_get_iommu_domain(iomap->domain_idx);
if (!domain) {
pr_err("unable to get iommu domain(%d)\n",
iomap->domain_idx);
return -EINVAL;
}
iommu_set_fault_handler(domain, mdss_iommu_fault_handler, NULL);
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
dev_err(dev, "could not allocate memory for pdata\n");
return pdata;
}
static u32 mdss_mdp_res_init(struct platform_device *pdev)
{
u32 rc;
rc = mdss_mdp_irq_clk_setup(pdev);
if (rc)
return rc;
mdss_res->clk_ctrl_wq = create_singlethread_workqueue("mdp_clk_wq");
INIT_DELAYED_WORK(&mdss_res->clk_ctrl_worker,
mdss_mdp_clk_ctrl_workqueue_handler);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON, false);
mdss_res->rev = MDSS_MDP_REG_READ(MDSS_REG_HW_VERSION);
mdss_res->mdp_rev = MDSS_MDP_REG_READ(MDSS_MDP_REG_HW_VERSION);
mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF, false);
mdss_res->smp_mb_cnt = MDSS_MDP_SMP_MMB_BLOCKS;
mdss_res->smp_mb_size = MDSS_MDP_SMP_MMB_SIZE;
mdss_res->pipe_type_map = mdss_mdp_pipe_type_map;
mdss_res->mixer_type_map = mdss_mdp_mixer_type_map;
pr_info("mdss_revision=%x\n", mdss_res->rev);
pr_info("mdp_hw_revision=%x\n", mdss_res->mdp_rev);
mdss_res->res_init = true;
mdss_res->timeout = HZ/20;
mdss_res->clk_ena = false;
mdss_res->irq_mask = MDSS_MDP_DEFAULT_INTR_MASK;
mdss_res->suspend = false;
mdss_res->prim_ptype = NO_PANEL;
mdss_res->irq_ena = false;
return 0;
}
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 venus_register_domain(u32 fw_max_sz)
{
struct msm_iova_partition venus_fw_partition = {
.start = 0,
.size = fw_max_sz,
};
struct msm_iova_layout venus_fw_layout = {
.partitions = &venus_fw_partition,
.npartitions = 1,
.client_name = "pil_venus",
.domain_flags = 0,
};
return msm_register_domain(&venus_fw_layout);
}
static int pil_venus_mem_setup(struct platform_device *pdev, size_t size)
{
int domain;
venus_data->iommu_fw_ctx = msm_iommu_get_ctx("venus_fw");
if (!venus_data->iommu_fw_ctx) {
dprintk(VIDC_ERR, "No iommu fw context found\n");
return -ENODEV;
}
if (!venus_data->venus_domain_num) {
size = round_up(size, SZ_4K);
domain = venus_register_domain(size);
if (domain < 0) {
dprintk(VIDC_ERR,
"Venus fw iommu domain register failed\n");
return -ENODEV;
}
venus_data->iommu_fw_domain = msm_get_iommu_domain(domain);
if (!venus_data->iommu_fw_domain) {
dprintk(VIDC_ERR, "No iommu fw domain found\n");
return -ENODEV;
}
venus_data->venus_domain_num = domain;
venus_data->fw_sz = size;
}
return 0;
}
static int pil_venus_auth_and_reset(struct platform_device *pdev)
{
int rc;
phys_addr_t fw_bias = venus_data->resources->firmware_base;
void __iomem *reg_base = venus_data->reg_base;
u32 ver;
bool iommu_present = is_iommu_present(venus_data->resources);
if (!fw_bias) {
dprintk(VIDC_ERR, "FW bias is not valid\n");
return -EINVAL;
}
/* Get Venus version number */
if (!venus_data->hw_ver_checked) {
ver = readl_relaxed(reg_base + VIDC_WRAPPER_HW_VERSION);
venus_data->hw_ver_minor = (ver & 0x0FFF0000) >> 16;
venus_data->hw_ver_major = (ver & 0xF0000000) >> 28;
venus_data->hw_ver_checked = 1;
}
