xlat v2: Cleanup get/change mem attr helpers

Changed the names for consistency with the rest of the library. Introduced
new helpers that manipulate the active translation tables context.

Change-Id: Icaca56b67fcf6a96e88aa3c7e47411162e8e6856
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

include/lib/xlat_tables/xlat_tables_v2.h

@@ -296,14 +296,15 @@ int mmap_remove_dynamic_region_ctx(xlat_ctx_t *ctx,
  * translation tables are not modified by any other code while this function is
  * executing.
  */
-int change_mem_attributes(const xlat_ctx_t *ctx, uintptr_t base_va, size_t size,
-			  uint32_t attr);
+int xlat_change_mem_attributes_ctx(const xlat_ctx_t *ctx, uintptr_t base_va,
+				   size_t size, uint32_t attr);
+int xlat_change_mem_attributes(uintptr_t base_va, size_t size, uint32_t attr);
 
 /*
  * Query the memory attributes of a memory page in a set of translation tables.
  *
  * Return 0 on success, a negative error code on error.
- * On success, the attributes are stored into *attributes.
+ * On success, the attributes are stored into *attr.
  *
  * ctx
  *   Translation context to work on.
@@ -311,11 +312,12 @@ int change_mem_attributes(const xlat_ctx_t *ctx, uintptr_t base_va, size_t size,
  *   Virtual address of the page to get the attributes of.
  *   There are no alignment restrictions on this address. The attributes of the
  *   memory page it lies within are returned.
- * attributes
+ * attr
  *   Output parameter where to store the attributes of the targeted memory page.
  */
-int get_mem_attributes(const xlat_ctx_t *ctx, uintptr_t base_va,
-		       uint32_t *attributes);
+int xlat_get_mem_attributes_ctx(const xlat_ctx_t *ctx, uintptr_t base_va,
+				uint32_t *attr);
+int xlat_get_mem_attributes(uintptr_t base_va, uint32_t *attr);
 
 #endif /*__ASSEMBLY__*/
 #endif /* XLAT_TABLES_V2_H */

lib/xlat_tables_v2/xlat_tables_context.c

@@ -90,6 +90,16 @@ void init_xlat_tables(void)
 	init_xlat_tables_ctx(&tf_xlat_ctx);
 }
 
+int xlat_get_mem_attributes(uintptr_t base_va, uint32_t *attr)
+{
+	return xlat_get_mem_attributes_ctx(&tf_xlat_ctx, base_va, attr);
+}
+
+int xlat_change_mem_attributes(uintptr_t base_va, size_t size, uint32_t attr)
+{
+	return xlat_change_mem_attributes_ctx(&tf_xlat_ctx, base_va, size, attr);
+}
+
 /*
  * If dynamic allocation of new regions is disabled then by the time we call the
  * function enabling the MMU, we'll have registered all the memory regions to

lib/xlat_tables_v2/xlat_tables_utils.c

@@ -314,8 +314,8 @@ static uint64_t *find_xlat_table_entry(uintptr_t virtual_addr,
 }
 
 
-static int get_mem_attributes_internal(const xlat_ctx_t *ctx, uintptr_t base_va,
-		uint32_t *attributes, uint64_t **table_entry,
+static int xlat_get_mem_attributes_internal(const xlat_ctx_t *ctx,
+		uintptr_t base_va, uint32_t *attributes, uint64_t **table_entry,
 		unsigned long long *addr_pa, unsigned int *table_level)
 {
 	uint64_t *entry;
@@ -407,18 +407,16 @@ static int get_mem_attributes_internal(const xlat_ctx_t *ctx, uintptr_t base_va,
 }
 
 
-int get_mem_attributes(const xlat_ctx_t *ctx, uintptr_t base_va,
-		       uint32_t *attributes)
+int xlat_get_mem_attributes_ctx(const xlat_ctx_t *ctx, uintptr_t base_va,
+				uint32_t *attr)
 {
-	return get_mem_attributes_internal(ctx, base_va, attributes,
+	return xlat_get_mem_attributes_internal(ctx, base_va, attr,
 				NULL, NULL, NULL);
 }
 
 
-int change_mem_attributes(const xlat_ctx_t *ctx,
-			uintptr_t base_va,
-			size_t size,
-			uint32_t attr)
+int xlat_change_mem_attributes_ctx(const xlat_ctx_t *ctx, uintptr_t base_va,
+				   size_t size, uint32_t attr)
 {
 	/* Note: This implementation isn't optimized. */
 
@@ -517,7 +515,7 @@ int change_mem_attributes(const xlat_ctx_t *ctx,
 		unsigned int level = 0U;
 		unsigned long long addr_pa = 0ULL;
 
-		(void) get_mem_attributes_internal(ctx, base_va, &old_attr,
+		(void) xlat_get_mem_attributes_internal(ctx, base_va, &old_attr,
 					    &entry, &addr_pa, &level);
 
 		/*

services/std_svc/spm/sp_xlat.c

@@ -44,7 +44,7 @@ xlat_ctx_t *spm_get_sp_xlat_context(void)
  * converts an attributes value from the SMC format to the mmap_attr_t format by
  * setting MT_RW/MT_RO, MT_USER/MT_PRIVILEGED and MT_EXECUTE/MT_EXECUTE_NEVER.
  * The other fields are left as 0 because they are ignored by the function
- * change_mem_attributes().
+ * xlat_change_mem_attributes_ctx().
  */
 static unsigned int smc_attr_to_mmap_attr(unsigned int attributes)
 {
@@ -112,12 +112,12 @@ int32_t spm_memory_attributes_get_smc_handler(sp_context_t *sp_ctx,
 
 	spin_lock(&mem_attr_smc_lock);
 
-	int rc = get_mem_attributes(sp_ctx->xlat_ctx_handle,
+	int rc = xlat_get_mem_attributes_ctx(sp_ctx->xlat_ctx_handle,
 				     base_va, &attributes);
 
 	spin_unlock(&mem_attr_smc_lock);
 
-	/* Convert error codes of get_mem_attributes() into SPM ones. */
+	/* Convert error codes of xlat_get_mem_attributes_ctx() into SPM. */
 	assert((rc == 0) || (rc == -EINVAL));
 
 	if (rc == 0) {
@@ -142,13 +142,13 @@ int spm_memory_attributes_set_smc_handler(sp_context_t *sp_ctx,
 
 	spin_lock(&mem_attr_smc_lock);
 
-	int ret = change_mem_attributes(sp_ctx->xlat_ctx_handle,
+	int ret = xlat_change_mem_attributes_ctx(sp_ctx->xlat_ctx_handle,
 					base_va, size,
 					smc_attr_to_mmap_attr(attributes));
 
 	spin_unlock(&mem_attr_smc_lock);
 
-	/* Convert error codes of change_mem_attributes() into SPM ones. */
+	/* Convert error codes of xlat_change_mem_attributes_ctx() into SPM. */
 	assert((ret == 0) || (ret == -EINVAL));
 
 	return (ret == 0) ? SPM_SUCCESS : SPM_INVALID_PARAMETER;