lib: sbi: Implement aligned memory allocators

This change adds a simple implementation of sbi_aligned_alloc(), for future use
in allocating aligned memory for SMMTT tables.

Signed-off-by: Gregor Haas <gregorhaas1997@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/sbi/sbi_heap.h b/include/sbi/sbi_heap.h
index 9a67090..a4b3f0c 100644
--- a/include/sbi/sbi_heap.h
+++ b/include/sbi/sbi_heap.h
@@ -31,6 +31,15 @@ static inline void *sbi_malloc(size_t size)
 	return sbi_malloc_from(&global_hpctrl, size);
 }
 
+/** Allocate aligned from heap area */
+void *sbi_aligned_alloc_from(struct sbi_heap_control *hpctrl,
+			     size_t alignment,size_t size);
+
+static inline void *sbi_aligned_alloc(size_t alignment, size_t size)
+{
+	return sbi_aligned_alloc_from(&global_hpctrl, alignment, size);
+}
+
 /** Zero allocate from heap area */
 void *sbi_zalloc_from(struct sbi_heap_control *hpctrl, size_t size);