Now that kexec does its relocations with the MMU enabled, we no longer
need to clean the relocation data to the PoC.
Suggested-by: James Morse <james.morse@xxxxxxx>
Signed-off-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
---
arch/arm64/kernel/machine_kexec.c | 43 -------------------------------
1 file changed, 43 deletions(-)
diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index b43195a7fcb6..b1856f34cc51 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -77,48 +77,6 @@ int machine_kexec_prepare(struct kimage *kimage)
return 0;
}
-/**
- * kexec_list_flush - Helper to flush the kimage list and source pages to PoC.
- */
-static void kexec_list_flush(struct kimage *kimage)
-{
- kimage_entry_t *entry;
-
- dcache_clean_inval_poc((unsigned long)kimage,
- (unsigned long)kimage + sizeof(*kimage));
-
- for (entry = &kimage->head; ; entry++) {
- unsigned int flag;
- unsigned long addr;
-
- /* flush the list entries. */
- dcache_clean_inval_poc((unsigned long)entry,
- (unsigned long)entry +
- sizeof(kimage_entry_t));
-
- flag = *entry & IND_FLAGS;
- if (flag == IND_DONE)
- break;
-
- addr = (unsigned long)phys_to_virt(*entry & PAGE_MASK);
-
- switch (flag) {
- case IND_INDIRECTION:
- /* Set entry point just before the new list page. */
- entry = (kimage_entry_t *)addr - 1;
- break;
- case IND_SOURCE:
- /* flush the source pages. */
- dcache_clean_inval_poc(addr, addr + PAGE_SIZE);
- break;
- case IND_DESTINATION:
- break;
- default:
- BUG();
- }
- }
-}
-
/**
* kexec_segment_flush - Helper to flush the kimage segments to PoC.
*/
@@ -207,7 +165,6 @@ int machine_kexec_post_load(struct kimage *kimage)
(unsigned long)reloc_code + reloc_size);
icache_inval_pou((uintptr_t)reloc_code,
(uintptr_t)reloc_code + reloc_size);
- kexec_list_flush(kimage);
kexec_image_info(kimage);
return 0;
--
2.25.1
