[RESEND PATCH v2 1/2] efi/loongarch: Implement efi_cache_sync_image()
WANG Rui <[email protected]>
| Newsgroups | org.kernel.vger.linux-efi,dev.linux.lists.loongarch,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Provide a LoongArch implementation of efi_cache_sync_image() to ensure instruction cache coherency after the kernel image is relocated. Signed-off-by: WANG Rui <[email protected]> Reviewed-by: Huacai Chen <[email protected]> --- drivers/firmware/efi/libstub/loongarch.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/firmware/efi/libstub/loongarch.c b/drivers/firmware/efi/libstub/loongarch.c index 9825f5218137..f7938d5c196a 100644 --- a/drivers/firmware/efi/libstub/loongarch.c +++ b/drivers/firmware/efi/libstub/loongarch.c @@ -18,6 +18,11 @@ efi_status_t check_platform_features(void) return EFI_SUCCESS; } +void efi_cache_sync_image(unsigned long image_base, unsigned long alloc_size) +{ + asm volatile ("ibar 0" ::: "memory"); +} + struct exit_boot_struct { efi_memory_desc_t *runtime_map; int runtime_entry_count; -- 2.54.0