lib: sbi: Add sbi_domain_root_add_memrange() API

This patch generalizes the logic to add a memory range with desired
alignment and flags of consecutive regions to the root domain.

Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

include/sbi/sbi_domain.h

@@ -180,6 +180,20 @@ int sbi_domain_register(struct sbi_domain *dom,
  */
 int sbi_domain_root_add_memregion(const struct sbi_domain_memregion *reg);
 
+/**
+ * Add a memory range with its flags to the root domain
+ * @param addr start physical address of memory range
+ * @param size physical size of memory range
+ * @param align alignment of memory region
+ * @param region_flags memory range flags
+ *
+ * @return 0 on success
+ * @return SBI_EALREADY if memory region conflicts with the existing one
+ * @return SBI_EINVAL otherwise
+ */
+int sbi_domain_root_add_memrange(unsigned long addr, unsigned long size,
+			   unsigned long align, unsigned long region_flags);
+
 /** Finalize domain tables and startup non-root domains */
 int sbi_domain_finalize(struct sbi_scratch *scratch, u32 cold_hartid);
 

include/sbi_utils/timer/aclint_mtimer.h

@@ -22,6 +22,8 @@
 
 #define CLINT_MTIMER_OFFSET		0x4000
 
+#define MTIMER_REGION_ALIGN		0x1000
+
 struct aclint_mtimer_data {
 	/* Public details */
 	unsigned long mtime_freq;