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/mmu.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/kernel/arch/xtensa/mm/mmu.c b/kernel/arch/xtensa/mm/mmu.c
index 4708431..511bb92 100644
--- a/kernel/arch/xtensa/mm/mmu.c
+++ b/kernel/arch/xtensa/mm/mmu.c
@@ -4,7 +4,7 @@
*
* Extracted from init.c
*/
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/percpu.h>
#include <linux/init.h>
#include <linux/string.h>
@@ -21,8 +21,7 @@
#if defined(CONFIG_HIGHMEM)
static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages)
{
- pgd_t *pgd = pgd_offset_k(vaddr);
- pmd_t *pmd = pmd_offset(pgd, vaddr);
+ pmd_t *pmd = pmd_off_k(vaddr);
pte_t *pte;
unsigned long i;
@@ -31,7 +30,10 @@
pr_debug("%s: vaddr: 0x%08lx, n_pages: %ld\n",
__func__, vaddr, n_pages);
- pte = alloc_bootmem_low_pages(n_pages * sizeof(pte_t));
+ pte = memblock_alloc_low(n_pages * sizeof(pte_t), PAGE_SIZE);
+ if (!pte)
+ panic("%s: Failed to allocate %lu bytes align=%lx\n",
+ __func__, n_pages * sizeof(pte_t), PAGE_SIZE);
for (i = 0; i < n_pages; ++i)
pte_clear(NULL, 0, pte + i);
--
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