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2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d 
 kernel/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
....@@ -45,13 +45,6 @@
4545 /* See header file for descriptions of functions */
4646 
4747 /**
48
- * This macro returns the size of a member of a structure.
49
- * Logically it is the same as "sizeof(s::field)" in C++, but
50
- * C lacks the "::" operator.
51
- */
52
-#define SIZEOF_FIELD(s, field) sizeof(((s *)NULL)->field)
53
-
54
-/**
5548  * This macro returns a member of the
5649  * cvmx_bootmem_named_block_desc_t structure. These members can't
5750  * be directly addressed as they might be in memory not directly
....@@ -65,7 +58,7 @@
6558 #define CVMX_BOOTMEM_NAMED_GET_FIELD(addr, field)			\
6659 	__cvmx_bootmem_desc_get(addr,					\
6760 		offsetof(struct cvmx_bootmem_named_block_desc, field),	\
68
-		SIZEOF_FIELD(struct cvmx_bootmem_named_block_desc, field))
61
+		sizeof_field(struct cvmx_bootmem_named_block_desc, field))
6962 
7063 /**
7164  * This function is the implementation of the get macros defined
....@@ -122,8 +115,21 @@
122115 	return cvmx_read64_uint64((addr + NEXT_OFFSET) | (1ull << 63));
123116 }
124117 
125
-void *cvmx_bootmem_alloc_range(uint64_t size, uint64_t alignment,
126
-			       uint64_t min_addr, uint64_t max_addr)
118
+/**
119
+ * Allocate a block of memory from the free list that was
120
+ * passed to the application by the bootloader within a specified
121
+ * address range. This is an allocate-only algorithm, so
122
+ * freeing memory is not possible. Allocation will fail if
123
+ * memory cannot be allocated in the requested range.
124
+ *
125
+ * @size:      Size in bytes of block to allocate
126
+ * @min_addr:  defines the minimum address of the range
127
+ * @max_addr:  defines the maximum address of the range
128
+ * @alignment: Alignment required - must be power of 2
129
+ * Returns pointer to block of memory, NULL on error
130
+ */
131
+static void *cvmx_bootmem_alloc_range(uint64_t size, uint64_t alignment,
132
+				      uint64_t min_addr, uint64_t max_addr)
127133 {
128134 	int64_t address;
129135 	address =
....@@ -142,47 +148,6 @@
142148 					address + size);
143149 }
144150 
145
-void *cvmx_bootmem_alloc(uint64_t size, uint64_t alignment)
146
-{
147
-	return cvmx_bootmem_alloc_range(size, alignment, 0, 0);
148
-}
149
-
150
-void *cvmx_bootmem_alloc_named_range_once(uint64_t size, uint64_t min_addr,
151
-					  uint64_t max_addr, uint64_t align,
152
-					  char *name,
153
-					  void (*init) (void *))
154
-{
155
-	int64_t addr;
156
-	void *ptr;
157
-	uint64_t named_block_desc_addr;
158
-
159
-	named_block_desc_addr = (uint64_t)
160
-		cvmx_bootmem_phy_named_block_find(name,
161
-						  (uint32_t)CVMX_BOOTMEM_FLAG_NO_LOCKING);
162
-
163
-	if (named_block_desc_addr) {
164
-		addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_desc_addr,
165
-						    base_addr);
166
-		return cvmx_phys_to_ptr(addr);
167
-	}
168
-
169
-	addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr,
170
-						  align, name,
171
-						  (uint32_t)CVMX_BOOTMEM_FLAG_NO_LOCKING);
172
-
173
-	if (addr < 0)
174
-		return NULL;
175
-	ptr = cvmx_phys_to_ptr(addr);
176
-
177
-	if (init)
178
-		init(ptr);
179
-	else
180
-		memset(ptr, 0, size);
181
-
182
-	return ptr;
183
-}
184
-EXPORT_SYMBOL(cvmx_bootmem_alloc_named_range_once);
185
-
186151 void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
187152 				     uint64_t max_addr, uint64_t align,
188153 				     char *name)
....@@ -197,29 +162,11 @@
197162 		return NULL;
198163 }
199164 
200
-void *cvmx_bootmem_alloc_named_address(uint64_t size, uint64_t address,
201
-				       char *name)
202
-{
203
-    return cvmx_bootmem_alloc_named_range(size, address, address + size,
204
-					  0, name);
205
-}
206
-
207165 void *cvmx_bootmem_alloc_named(uint64_t size, uint64_t alignment, char *name)
208166 {
209167     return cvmx_bootmem_alloc_named_range(size, 0, 0, alignment, name);
210168 }
211169 EXPORT_SYMBOL(cvmx_bootmem_alloc_named);
212
-
213
-int cvmx_bootmem_free_named(char *name)
214
-{
215
-	return cvmx_bootmem_phy_named_block_free(name, 0);
216
-}
217
-
218
-struct cvmx_bootmem_named_block_desc *cvmx_bootmem_find_named_block(char *name)
219
-{
220
-	return cvmx_bootmem_phy_named_block_find(name, 0);
221
-}
222
-EXPORT_SYMBOL(cvmx_bootmem_find_named_block);
223170 
224171 void cvmx_bootmem_lock(void)
225172 {
....@@ -603,7 +550,20 @@
603550 
604551 }
605552 
606
-struct cvmx_bootmem_named_block_desc *
553
+/**
554
+ * Finds a named memory block by name.
555
+ * Also used for finding an unused entry in the named block table.
556
+ *
557
+ * @name: Name of memory block to find.	 If NULL pointer given, then
558
+ *	  finds unused descriptor, if available.
559
+ *
560
+ * @flags: Flags to control options for the allocation.
561
+ *
562
+ * Returns Pointer to memory block descriptor, NULL if not found.
563
+ *	   If NULL returned when name parameter is NULL, then no memory
564
+ *	   block descriptors are available.
565
+ */
566
+static struct cvmx_bootmem_named_block_desc *
607567 	cvmx_bootmem_phy_named_block_find(char *name, uint32_t flags)
608568 {
609569 	unsigned int i;
....@@ -655,7 +615,58 @@
655615 	return NULL;
656616 }
657617 
658
-int cvmx_bootmem_phy_named_block_free(char *name, uint32_t flags)
618
+void *cvmx_bootmem_alloc_named_range_once(uint64_t size, uint64_t min_addr,
619
+					  uint64_t max_addr, uint64_t align,
620
+					  char *name,
621
+					  void (*init) (void *))
622
+{
623
+	int64_t addr;
624
+	void *ptr;
625
+	uint64_t named_block_desc_addr;
626
+
627
+	named_block_desc_addr = (uint64_t)
628
+		cvmx_bootmem_phy_named_block_find(name,
629
+						  (uint32_t)CVMX_BOOTMEM_FLAG_NO_LOCKING);
630
+
631
+	if (named_block_desc_addr) {
632
+		addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_desc_addr,
633
+						    base_addr);
634
+		return cvmx_phys_to_ptr(addr);
635
+	}
636
+
637
+	addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr,
638
+						  align, name,
639
+						  (uint32_t)CVMX_BOOTMEM_FLAG_NO_LOCKING);
640
+
641
+	if (addr < 0)
642
+		return NULL;
643
+	ptr = cvmx_phys_to_ptr(addr);
644
+
645
+	if (init)
646
+		init(ptr);
647
+	else
648
+		memset(ptr, 0, size);
649
+
650
+	return ptr;
651
+}
652
+EXPORT_SYMBOL(cvmx_bootmem_alloc_named_range_once);
653
+
654
+struct cvmx_bootmem_named_block_desc *cvmx_bootmem_find_named_block(char *name)
655
+{
656
+	return cvmx_bootmem_phy_named_block_find(name, 0);
657
+}
658
+EXPORT_SYMBOL(cvmx_bootmem_find_named_block);
659
+
660
+/**
661
+ * Frees a named block.
662
+ *
663
+ * @name:   name of block to free
664
+ * @flags:  flags for passing options
665
+ *
666
+ * Returns 0 on failure
667
+ *	   1 on success
668
+ */
669
+static int cvmx_bootmem_phy_named_block_free(char *name, uint32_t flags)
659670 {
660671 	struct cvmx_bootmem_named_block_desc *named_block_ptr;
661672 
....@@ -699,6 +710,11 @@
699710 	return named_block_ptr != NULL; /* 0 on failure, 1 on success */
700711 }
701712 
713
+int cvmx_bootmem_free_named(char *name)
714
+{
715
+	return cvmx_bootmem_phy_named_block_free(name, 0);
716
+}
717
+
702718 int64_t cvmx_bootmem_phy_named_block_alloc(uint64_t size, uint64_t min_addr,
703719 					   uint64_t max_addr,
704720 					   uint64_t alignment,