移去rt

hc

2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/iova.h
..
..
@@ -1,11 +1,9 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
1
2
 /*
2
3
  * Copyright (c) 2006, Intel Corporation.
3
4
  *
4
- * This file is released under the GPLv2.
5
- *
6
5
  * Copyright (C) 2006-2008 Intel Corporation
7
6
  * Author: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
8
- *
9
7
  */
10
8
 
11
9
 #ifndef _IOVA_H_
..
..
@@ -74,8 +72,16 @@
74
72
 	struct rb_node	*cached32_node; /* Save last 32-bit alloced node */
75
73
 	unsigned long	granule;	/* pfn granularity for this domain */
76
74
 	unsigned long	start_pfn;	/* Lower limit for this domain */
77
-	unsigned long	end_pfn;        /* Upper limit for this domain */
78
75
 	unsigned long	dma_32bit_pfn;
76
+	unsigned long	max32_alloc_size; /* Size of last failed allocation */
77
+	struct iova_fq __percpu *fq;	/* Flush Queue */
78
+
79
+	atomic64_t	fq_flush_start_cnt;	/* Number of TLB flushes that
80
+						   have been started */
81
+
82
+	atomic64_t	fq_flush_finish_cnt;	/* Number of TLB flushes that
83
+						   have been finished */
84
+
79
85
 	struct iova	anchor;		/* rbtree lookup anchor */
80
86
 	struct iova_rcache rcaches[IOVA_RANGE_CACHE_MAX_SIZE];	/* IOVA range caches */
81
87
 
..
..
@@ -84,14 +90,6 @@
84
90
 
85
91
 	iova_entry_dtor entry_dtor;	/* IOMMU driver specific destructor for
86
92
 					   iova entry */
87
-
88
-	struct iova_fq __percpu *fq;	/* Flush Queue */
89
-
90
-	atomic64_t	fq_flush_start_cnt;	/* Number of TLB flushes that
91
-						   have been started */
92
-
93
-	atomic64_t	fq_flush_finish_cnt;	/* Number of TLB flushes that
94
-						   have been finished */
95
93
 
96
94
 	struct timer_list fq_timer;		/* Timer to regularily empty the
97
95
 						   flush-queues */
..
..
@@ -135,7 +133,7 @@
135
133
 	return iova >> iova_shift(iovad);
136
134
 }
137
135
 
138
-#if IS_ENABLED(CONFIG_IOMMU_IOVA)
136
+#if IS_REACHABLE(CONFIG_IOMMU_IOVA)
139
137
 int iova_cache_get(void);
140
138
 void iova_cache_put(void);
141
139
 
..
..
@@ -166,6 +164,7 @@
166
164
 struct iova *split_and_remove_iova(struct iova_domain *iovad,
167
165
 	struct iova *iova, unsigned long pfn_lo, unsigned long pfn_hi);
168
166
 void free_cpu_cached_iovas(unsigned int cpu, struct iova_domain *iovad);
167
+void free_global_cached_iovas(struct iova_domain *iovad);
169
168
 #else
170
169
 static inline int iova_cache_get(void)
171
170
 {
..
..
@@ -273,6 +272,11 @@
273
272
 					 struct iova_domain *iovad)
274
273
 {
275
274
 }
275
+
276
+static inline void free_global_cached_iovas(struct iova_domain *iovad)
277
+{
278
+}
279
+
276
280
 #endif
277
281
 
278
282
 #endif