io_uring: dig out COMP_LOCK from deep call chain

[linux-2.6-microblaze.git] / drivers / firmware / qcom_scm.c

diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index e8bbf2d..7be48c1 100644 (file)
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -756,6 +756,30 @@ int qcom_scm_iommu_secure_ptbl_init(u64 addr, u32 size, u32 spare)
 }
 EXPORT_SYMBOL(qcom_scm_iommu_secure_ptbl_init);
 
+int qcom_scm_mem_protect_video_var(u32 cp_start, u32 cp_size,
+                                  u32 cp_nonpixel_start,
+                                  u32 cp_nonpixel_size)
+{
+       int ret;
+       struct qcom_scm_desc desc = {
+               .svc = QCOM_SCM_SVC_MP,
+               .cmd = QCOM_SCM_MP_VIDEO_VAR,
+               .arginfo = QCOM_SCM_ARGS(4, QCOM_SCM_VAL, QCOM_SCM_VAL,
+                                        QCOM_SCM_VAL, QCOM_SCM_VAL),
+               .args[0] = cp_start,
+               .args[1] = cp_size,
+               .args[2] = cp_nonpixel_start,
+               .args[3] = cp_nonpixel_size,
+               .owner = ARM_SMCCC_OWNER_SIP,
+       };
+       struct qcom_scm_res res;
+
+       ret = qcom_scm_call(__scm->dev, &desc, &res);
+
+       return ret ? : res.result[0];
+}
+EXPORT_SYMBOL(qcom_scm_mem_protect_video_var);
+
 static int __qcom_scm_assign_mem(struct device *dev, phys_addr_t mem_region,
                                 size_t mem_sz, phys_addr_t src, size_t src_sz,
                                 phys_addr_t dest, size_t dest_sz)