On 2/20/25 05:54, Ilias Apalodimas wrote:
+++ b/include/cpu_func.h
@@ -69,6 +69,23 @@ void flush_dcache_range(unsigned long start, unsigned long
stop);
void invalidate_dcache_range(unsigned long start, unsigned long stop);
void invalidate_dcache_all(void);
void invalidate_icache_all(void);
+
+enum pgprot_attrs {
+ MMU_ATTR_RO,
+ MMU_ATTR_RX,
+ MMU_ATTR_RW,
+};
+
+/** pgprot_set_attrs() - Set page table permissions
+ *
+ * @addr: Physical address start
+ * @size: size of memory to change
+ * @perm: New permissions
+ *
+ * Return: 0 on success, error otherwise.
+ **/
+int pgprot_set_attrs(phys_addr_t addr, size_t size, u64 perm);
Why do you not use the enum for 'perm'?
That's certainly the API you're expecting...
r~
