@@ -528,6 +528,8 @@ dtb_check_done:
/* Preserve offset to relocated code. */
sub r6, r9, r6
+ mov r0, r9 @ start of relocated zImage
+ add r1, sp, r6 @ end of relocated zImage
#ifndef CONFIG_ZBOOT_ROM
/* cache_clean_flush may use the stack, so relocate it */
add sp, sp, r6
@@ -629,6 +631,11 @@ not_relocated: mov r0, #0
add r2, sp, #0x10000 @ 64k max
mov r3, r7
bl decompress_kernel
+
+ get_inflated_image_size r1, r2, r3
+
+ mov r0, r4 @ start of inflated image
+ add r1, r1, r0 @ end of inflated image
bl cache_clean_flush
bl cache_off
@@ -1182,6 +1189,9 @@ __armv7_mmu_cache_off:
/*
* Clean and flush the cache to maintain consistency.
*
+ * On entry,
+ * r0 = start address
+ * r1 = end address (exclusive)
* On exit,
* r1, r2, r3, r9, r10, r11, r12 corrupted
* This routine must preserve:
In preparation for turning the decompressor's cache clean/flush operations into proper by-VA maintenance for v7 cores, pass the start and end addresses of the regions that need cache maintenance into cache_clean_flush in registers r0 and r1. Currently, all implementations of cache_clean_flush ignore these values, so no functional change is expected as a result of this patch. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> --- arch/arm/boot/compressed/head.S | 10 ++++++++++ 1 file changed, 10 insertions(+)