From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/arch/arm/mm/idmap.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/kernel/arch/arm/mm/idmap.c b/kernel/arch/arm/mm/idmap.c
index 1d1edd0..448e57c 100644
--- a/kernel/arch/arm/mm/idmap.c
+++ b/kernel/arch/arm/mm/idmap.c
@@ -3,11 +3,12 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/mm_types.h>
+#include <linux/pgtable.h>
#include <asm/cputype.h>
#include <asm/idmap.h>
+#include <asm/hwcap.h>
#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
#include <asm/sections.h>
#include <asm/system_info.h>
@@ -67,7 +68,8 @@
static void idmap_add_pud(pgd_t *pgd, unsigned long addr, unsigned long end,
unsigned long prot)
{
- pud_t *pud = pud_offset(pgd, addr);
+ p4d_t *p4d = p4d_offset(pgd, addr);
+ pud_t *pud = pud_offset(p4d, addr);
unsigned long next;
do {
@@ -110,7 +112,8 @@
__idmap_text_end, 0);
/* Flush L1 for the hardware to see this page table content */
- flush_cache_louis();
+ if (!(elf_hwcap & HWCAP_LPAE))
+ flush_cache_louis();
return 0;
}
--
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