C++ (Cpp) check_pmem_info Exemples

Exemple #1

Fichier : msm_mem.c Projet : Kra1o5/android_kernel_huawei_u8815-gb

static int msm_pmem_table_add(struct hlist_head *ptype,
	struct msm_pmem_info *info)
{
	struct file *file;
	unsigned long paddr;
#ifdef CONFIG_ANDROID_PMEM
	unsigned long kvstart;
	int rc;
#endif
	unsigned long len;
	struct msm_pmem_region *region;
#ifdef CONFIG_ANDROID_PMEM
	rc = get_pmem_file(info->fd, &paddr, &kvstart, &len, &file);
	if (rc < 0) {
		pr_err("%s: get_pmem_file fd %d error %d\n",
						__func__,
						info->fd, rc);
		return rc;
	}
	if (!info->len)
		info->len = len;

	rc = check_pmem_info(info, len);
	if (rc < 0)
		return rc;
#else
	paddr = 0;
	file = NULL;
#endif
	paddr += info->offset;
	len = info->len;

	if (check_overlap(ptype, paddr, len) < 0)
		return -EINVAL;

	CDBG("%s: type %d, active flag %d, paddr 0x%lx, vaddr 0x%lx\n",
		__func__, info->type, info->active, paddr,
		(unsigned long)info->vaddr);

	region = kmalloc(sizeof(struct msm_pmem_region), GFP_KERNEL);
	if (!region)
		return -ENOMEM;

	INIT_HLIST_NODE(&region->list);

	region->paddr = paddr;
	region->len = len;
	region->file = file;
	memcpy(&region->info, info, sizeof(region->info));
	D("%s Adding region to list with type %d\n", __func__,
						region->info.type);
	D("%s pmem_stats address is 0x%p\n", __func__, ptype);
	hlist_add_head(&(region->list), ptype);

	return 0;
}

Exemple #2

Fichier : msm_mem.c Projet : FreeProjectAce/protou_kernel

static int msm_pmem_table_add(struct hlist_head *ptype,
	struct msm_pmem_info *info, struct ion_client *client)
{
	unsigned long paddr;
#ifndef CONFIG_MSM_MULTIMEDIA_USE_ION
	unsigned long kvstart;
	struct file *file;
#endif
	int rc = -ENOMEM;

	unsigned long len;
	struct msm_pmem_region *region;

	region = kmalloc(sizeof(struct msm_pmem_region), GFP_KERNEL);
	if (!region)
		goto out;
#ifdef CONFIG_MSM_MULTIMEDIA_USE_ION
	region->handle = ion_import_fd(client, info->fd);
	if (IS_ERR_OR_NULL(region->handle))
		goto out1;
	if (ion_map_iommu(client, region->handle, CAMERA_DOMAIN, GEN_POOL,
				  SZ_4K, 0, &paddr, &len, UNCACHED, 0) < 0)
		goto out2;
#elif CONFIG_ANDROID_PMEM
	rc = get_pmem_file(info->fd, &paddr, &kvstart, &len, &file);
	if (rc < 0) {
		pr_err("%s: get_pmem_file fd %d error %d\n",
				__func__, info->fd, rc);
		goto out1;
	}
	region->file = file;
#else
	paddr = 0;
	file = NULL;
	kvstart = 0;
#endif
	if (!info->len)
		info->len = len;
	rc = check_pmem_info(info, len);
	if (rc < 0)
		goto out3;
	paddr += info->offset;
	len = info->len;

	if (check_overlap(ptype, paddr, len) < 0) {
		rc = -EINVAL;
		goto out3;
	}

	CDBG("%s: type %d, active flag %d, paddr 0x%lx, vaddr 0x%lx\n",
		__func__, info->type, info->active, paddr,
		(unsigned long)info->vaddr);

	INIT_HLIST_NODE(&region->list);
	region->paddr = paddr;
	region->len = len;
	memcpy(&region->info, info, sizeof(region->info));
	D("%s Adding region to list with type %d\n", __func__,
						region->info.type);
	D("%s pmem_stats address is 0x%p\n", __func__, ptype);
	hlist_add_head(&(region->list), ptype);

	return 0;
out3:
#ifdef CONFIG_MSM_MULTIMEDIA_USE_ION
	ion_unmap_iommu(client, region->handle, CAMERA_DOMAIN, GEN_POOL);
#endif
#ifdef CONFIG_MSM_MULTIMEDIA_USE_ION
out2:
	ion_free(client, region->handle);
#elif CONFIG_ANDROID_PMEM
	put_pmem_file(region->file);
#endif
out1:
	kfree(region);
out:
	return rc;
}