rtl8211F_led_control

hc

2024-05-11 297b60346df8beafee954a0fd7c2d64f33f3b9bc

 kernel/arch/x86/mm/highmem_32.c
..
..
@@ -1,45 +1,13 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 #include <linux/highmem.h>
2
3
 #include <linux/export.h>
3
4
 #include <linux/swap.h> /* for totalram_pages */
4
-#include <linux/bootmem.h>
5
+#include <linux/memblock.h>
5
6
 
6
-void *kmap(struct page *page)
7
-{
8
-	might_sleep();
9
-	if (!PageHighMem(page))
10
-		return page_address(page);
11
-	return kmap_high(page);
12
-}
13
-EXPORT_SYMBOL(kmap);
14
-
15
-void kunmap(struct page *page)
16
-{
17
-	if (in_interrupt())
18
-		BUG();
19
-	if (!PageHighMem(page))
20
-		return;
21
-	kunmap_high(page);
22
-}
23
-EXPORT_SYMBOL(kunmap);
24
-
25
-/*
26
- * kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
27
- * no global lock is needed and because the kmap code must perform a global TLB
28
- * invalidation when the kmap pool wraps.
29
- *
30
- * However when holding an atomic kmap it is not legal to sleep, so atomic
31
- * kmaps are appropriate for short, tight code paths only.
32
- */
33
-void *kmap_atomic_prot(struct page *page, pgprot_t prot)
7
+void *kmap_atomic_high_prot(struct page *page, pgprot_t prot)
34
8
 {
35
9
 	unsigned long vaddr;
36
10
 	int idx, type;
37
-
38
-	preempt_disable();
39
-	pagefault_disable();
40
-
41
-	if (!PageHighMem(page))
42
-		return page_address(page);
43
11
 
44
12
 	type = kmap_atomic_idx_push();
45
13
 	idx = type + KM_TYPE_NR*smp_processor_id();
..
..
@@ -50,13 +18,7 @@
50
18
 
51
19
 	return (void *)vaddr;
52
20
 }
53
-EXPORT_SYMBOL(kmap_atomic_prot);
54
-
55
-void *kmap_atomic(struct page *page)
56
-{
57
-	return kmap_atomic_prot(page, kmap_prot);
58
-}
59
-EXPORT_SYMBOL(kmap_atomic);
21
+EXPORT_SYMBOL(kmap_atomic_high_prot);
60
22
 
61
23
 /*
62
24
  * This is the same as kmap_atomic() but can map memory that doesn't
..
..
@@ -68,7 +30,7 @@
68
30
 }
69
31
 EXPORT_SYMBOL_GPL(kmap_atomic_pfn);
70
32
 
71
-void __kunmap_atomic(void *kvaddr)
33
+void kunmap_atomic_high(void *kvaddr)
72
34
 {
73
35
 	unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
74
36
 
..
..
@@ -98,11 +60,8 @@
98
60
 		BUG_ON(vaddr >= (unsigned long)high_memory);
99
61
 	}
100
62
 #endif
101
-
102
-	pagefault_enable();
103
-	preempt_enable();
104
63
 }
105
-EXPORT_SYMBOL(__kunmap_atomic);
64
+EXPORT_SYMBOL(kunmap_atomic_high);
106
65
 
107
66
 void __init set_highmem_pages_init(void)
108
67
 {
..
..
@@ -111,7 +70,7 @@
111
70
 
112
71
 	/*
113
72
 	 * Explicitly reset zone->managed_pages because set_highmem_pages_init()
114
-	 * is invoked before free_all_bootmem()
73
+	 * is invoked before memblock_free_all()
115
74
 	 */
116
75
 	reset_all_zones_managed_pages();
117
76
 	for_each_zone(zone) {