summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--lib/builtins/clear_cache.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/builtins/clear_cache.c b/lib/builtins/clear_cache.c
index 881ea9b77..451f1c0b1 100644
--- a/lib/builtins/clear_cache.c
+++ b/lib/builtins/clear_cache.c
@@ -163,12 +163,14 @@ void __clear_cache(void *start, void *end) {
* uintptr_t in case this runs in an IPL32 environment.
*/
const size_t dcache_line_size = 4 << ((ctr_el0 >> 16) & 15);
- for (addr = xstart; addr < xend; addr += dcache_line_size)
+ for (addr = xstart & ~(dcache_line_size - 1); addr < xend;
+ addr += dcache_line_size)
__asm __volatile("dc cvau, %0" :: "r"(addr));
__asm __volatile("dsb ish");
const size_t icache_line_size = 4 << ((ctr_el0 >> 0) & 15);
- for (addr = xstart; addr < xend; addr += icache_line_size)
+ for (addr = xstart & ~(icache_line_size - 1); addr < xend;
+ addr += icache_line_size)
__asm __volatile("ic ivau, %0" :: "r"(addr));
__asm __volatile("isb sy");
#elif defined (__powerpc64__)