C++ (Cpp) kgsl_gem_obj_addr Beispiele

Beispiel #1

Datei: mdss_mdp_util.c Projekt: ColonelSaumon/android_kernel_nokia_msm8x25

int mdss_mdp_get_img(struct ion_client *iclient, struct msmfb_data *img,
		     struct mdss_mdp_img_data *data)
{
	struct file *file;
	int ret = -EINVAL;
	int fb_num;
	unsigned long *start, *len;

	start = (unsigned long *) &data->addr;
	len = (unsigned long *) &data->len;
	data->flags = img->flags;
	data->p_need = 0;

	if (img->flags & MDP_BLIT_SRC_GEM) {
		data->srcp_file = NULL;
		ret = kgsl_gem_obj_addr(img->memory_id, (int) img->priv,
					start, len);
	} else if (img->flags & MDP_MEMORY_ID_TYPE_FB) {
		file = fget_light(img->memory_id, &data->p_need);
		if (file && FB_MAJOR ==
				MAJOR(file->f_dentry->d_inode->i_rdev)) {
			data->srcp_file = file;
			fb_num = MINOR(file->f_dentry->d_inode->i_rdev);
			ret = mdss_fb_get_phys_info(start, len, fb_num);
		}
	} else if (iclient) {
		data->iclient = iclient;
		data->srcp_ihdl = ion_import_dma_buf(iclient, img->memory_id);
		if (IS_ERR_OR_NULL(data->srcp_ihdl))
			return PTR_ERR(data->srcp_ihdl);
		ret = ion_phys(iclient, data->srcp_ihdl,
			       start, (size_t *) len);
	} else {
		unsigned long vstart;
		ret = get_pmem_file(img->memory_id, start, &vstart, len,
				    &data->srcp_file);
	}

	if (!ret && (img->offset < data->len)) {
		data->addr += img->offset;
		data->len -= img->offset;
	} else {
		mdss_mdp_put_img(data);
		ret = -EINVAL;
	}

	return ret;
}

Beispiel #2

Datei: mdss_mdp_util.c Projekt: grzmot22/android_kernel_msm

int mdss_mdp_get_img(struct msmfb_data *img, struct mdss_mdp_img_data *data)
{
	struct file *file;
	int ret = -EINVAL;
	int fb_num;
	unsigned long *start, *len;
	struct ion_client *iclient = mdss_get_ionclient();

	start = (unsigned long *) &data->addr;
	len = (unsigned long *) &data->len;
	data->flags |= img->flags;
	data->p_need = 0;

	if (img->flags & MDP_BLIT_SRC_GEM) {
		data->srcp_file = NULL;
		ret = kgsl_gem_obj_addr(img->memory_id, (int) img->priv,
					start, len);
	} else if (img->flags & MDP_MEMORY_ID_TYPE_FB) {
		file = fget_light(img->memory_id, &data->p_need);
		if (file == NULL) {
			pr_err("invalid framebuffer file (%d)\n",
					img->memory_id);
			return -EINVAL;
		}
		data->srcp_file = file;

		if (MAJOR(file->f_dentry->d_inode->i_rdev) == FB_MAJOR) {
			fb_num = MINOR(file->f_dentry->d_inode->i_rdev);
			ret = mdss_fb_get_phys_info(start, len, fb_num);
			if (ret)
				pr_err("mdss_fb_get_phys_info() failed\n");
		} else {
			pr_err("invalid FB_MAJOR\n");
			ret = -1;
		}
	} else if (iclient) {
		data->srcp_ihdl = ion_import_dma_buf(iclient, img->memory_id);
		if (IS_ERR_OR_NULL(data->srcp_ihdl)) {
			pr_err("error on ion_import_fd\n");
			ret = PTR_ERR(data->srcp_ihdl);
			data->srcp_ihdl = NULL;
			return ret;
		}

		if (is_mdss_iommu_attached()) {
			int domain;
			if (data->flags & MDP_SECURE_OVERLAY_SESSION) {
				domain = MDSS_IOMMU_DOMAIN_SECURE;

				mdss_mdp_secure_vote(1);
				ret = msm_ion_secure_buffer(iclient,
					data->srcp_ihdl, 0x2, 0);
				if (IS_ERR_VALUE(ret)) {
					ion_free(iclient, data->srcp_ihdl);
					pr_err("failed to secure handle (%d)\n",
						ret);
					return ret;
				}
			} else {
				domain = MDSS_IOMMU_DOMAIN_UNSECURE;
			}

			ret = ion_map_iommu(iclient, data->srcp_ihdl,
					    mdss_get_iommu_domain(domain),
					    0, SZ_4K, 0, start, len, 0, 0);
		} else {
			ret = ion_phys(iclient, data->srcp_ihdl, start,
				       (size_t *) len);
		}

		if (IS_ERR_VALUE(ret)) {
			ion_free(iclient, data->srcp_ihdl);
			pr_err("failed to map ion handle (%d)\n", ret);
			return ret;
		}
	}

	if (!*start) {
		pr_err("start address is zero!\n");
		return -ENOMEM;
	}

	if (!ret && (img->offset < data->len)) {
		data->addr += img->offset;
		data->len -= img->offset;

		pr_debug("mem=%d ihdl=%p buf=0x%x len=0x%x\n", img->memory_id,
			 data->srcp_ihdl, data->addr, data->len);
	} else {
		return -EINVAL;
	}

	return ret;
}