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/parisc/include/asm/cacheflush.h | 35 +++++++----------------------------
1 files changed, 7 insertions(+), 28 deletions(-)
diff --git a/kernel/arch/parisc/include/asm/cacheflush.h b/kernel/arch/parisc/include/asm/cacheflush.h
index 0c83644..cc9d096 100644
--- a/kernel/arch/parisc/include/asm/cacheflush.h
+++ b/kernel/arch/parisc/include/asm/cacheflush.h
@@ -57,6 +57,11 @@
#define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages)
#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages)
+#define flush_dcache_mmap_lock_irqsave(mapping, flags) \
+ xa_lock_irqsave(&mapping->i_pages, flags)
+#define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \
+ xa_unlock_irqrestore(&mapping->i_pages, flags)
+
#define flush_icache_page(vma,page) do { \
flush_kernel_dcache_page(page); \
@@ -100,37 +105,11 @@
}
}
-#include <asm/kmap_types.h>
-
-#define ARCH_HAS_KMAP
-
-static inline void *kmap(struct page *page)
-{
- might_sleep();
- return page_address(page);
-}
-
-static inline void kunmap(struct page *page)
-{
- flush_kernel_dcache_page_addr(page_address(page));
-}
-
-static inline void *kmap_atomic(struct page *page)
-{
- preempt_disable();
- pagefault_disable();
- return page_address(page);
-}
-
-static inline void __kunmap_atomic(void *addr)
+#define ARCH_HAS_FLUSH_ON_KUNMAP
+static inline void kunmap_flush_on_unmap(void *addr)
{
flush_kernel_dcache_page_addr(addr);
- pagefault_enable();
- preempt_enable();
}
-
-#define kmap_atomic_prot(page, prot) kmap_atomic(page)
-#define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn))
#endif /* _PARISC_CACHEFLUSH_H */
--
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