From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/arch/xtensa/mm/kasan_init.c | 23 ++++++++++++++---------
1 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/kernel/arch/xtensa/mm/kasan_init.c b/kernel/arch/xtensa/mm/kasan_init.c
index 38ecdbf..1fef24d 100644
--- a/kernel/arch/xtensa/mm/kasan_init.c
+++ b/kernel/arch/xtensa/mm/kasan_init.c
@@ -8,11 +8,10 @@
* Copyright (C) 2017 Cadence Design Systems Inc.
*/
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/init_task.h>
#include <linux/kasan.h>
#include <linux/kernel.h>
-#include <linux/memblock.h>
#include <asm/initialize_mmu.h>
#include <asm/tlbflush.h>
#include <asm/traps.h>
@@ -20,8 +19,7 @@
void __init kasan_early_init(void)
{
unsigned long vaddr = KASAN_SHADOW_START;
- pgd_t *pgd = pgd_offset_k(vaddr);
- pmd_t *pmd = pmd_offset(pgd, vaddr);
+ pmd_t *pmd = pmd_off_k(vaddr);
int i;
for (i = 0; i < PTRS_PER_PTE; ++i)
@@ -42,9 +40,12 @@
unsigned long n_pmds = n_pages / PTRS_PER_PTE;
unsigned long i, j;
unsigned long vaddr = (unsigned long)start;
- pgd_t *pgd = pgd_offset_k(vaddr);
- pmd_t *pmd = pmd_offset(pgd, vaddr);
- pte_t *pte = memblock_virt_alloc(n_pages * sizeof(pte_t), PAGE_SIZE);
+ pmd_t *pmd = pmd_off_k(vaddr);
+ pte_t *pte = memblock_alloc(n_pages * sizeof(pte_t), PAGE_SIZE);
+
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, n_pages * sizeof(pte_t), PAGE_SIZE);
pr_debug("%s: %p - %p\n", __func__, start, end);
@@ -53,8 +54,12 @@
for (k = 0; k < PTRS_PER_PTE; ++k, ++j) {
phys_addr_t phys =
- memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
- MEMBLOCK_ALLOC_ANYWHERE);
+ memblock_phys_alloc_range(PAGE_SIZE, PAGE_SIZE,
+ 0,
+ MEMBLOCK_ALLOC_ANYWHERE);
+
+ if (!phys)
+ panic("Failed to allocate page table page\n");
set_pte(pte + j, pfn_pte(PHYS_PFN(phys), PAGE_KERNEL));
}
--
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