Commit e951a1f4 authored by Ard Biesheuvel's avatar Ard Biesheuvel

efi/arm: Pass start and end addresses to cache_clean_flush()

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: default avatarArd Biesheuvel <ardb@kernel.org>
parent c7225494
...@@ -1460,6 +1460,12 @@ ENTRY(efi_stub_entry) ...@@ -1460,6 +1460,12 @@ ENTRY(efi_stub_entry)
@ Preserve return value of efi_entry() in r4 @ Preserve return value of efi_entry() in r4
mov r4, r0 mov r4, r0
add r1, r4, #SZ_2M @ DT end
bl cache_clean_flush
ldr r0, [sp] @ relocated zImage
ldr r1, =_edata @ size of zImage
add r1, r1, r0 @ end of zImage
bl cache_clean_flush bl cache_clean_flush
@ The PE/COFF loader might not have cleaned the code we are @ The PE/COFF loader might not have cleaned the code we are
......
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