add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/arch/powerpc/include/asm/tlb.h
..
..
@@ -1,22 +1,17 @@
1
+/* SPDX-License-Identifier: GPL-2.0-or-later */
1
2
 /*
2
3
  *	TLB shootdown specifics for powerpc
3
4
  *
4
5
  * Copyright (C) 2002 Anton Blanchard, IBM Corp.
5
6
  * Copyright (C) 2002 Paul Mackerras, IBM Corp.
6
- *
7
- * This program is free software; you can redistribute it and/or
8
- * modify it under the terms of the GNU General Public License
9
- * as published by the Free Software Foundation; either version
10
- * 2 of the License, or (at your option) any later version.
11
7
  */
12
8
 #ifndef _ASM_POWERPC_TLB_H
13
9
 #define _ASM_POWERPC_TLB_H
14
10
 #ifdef __KERNEL__
15
11
 
16
12
 #ifndef __powerpc64__
17
-#include <asm/pgtable.h>
13
+#include <linux/pgtable.h>
18
14
 #endif
19
-#include <asm/pgalloc.h>
20
15
 #ifndef __powerpc64__
21
16
 #include <asm/page.h>
22
17
 #include <asm/mmu.h>
..
..
@@ -27,9 +22,20 @@
27
22
 #define tlb_start_vma(tlb, vma)	do { } while (0)
28
23
 #define tlb_end_vma(tlb, vma)	do { } while (0)
29
24
 #define __tlb_remove_tlb_entry	__tlb_remove_tlb_entry
30
-#define tlb_remove_check_page_size_change tlb_remove_check_page_size_change
31
25
 
26
+#define tlb_flush tlb_flush
32
27
 extern void tlb_flush(struct mmu_gather *tlb);
28
+/*
29
+ * book3s:
30
+ * Hash does not use the linux page-tables, so we can avoid
31
+ * the TLB invalidate for page-table freeing, Radix otoh does use the
32
+ * page-tables and needs the TLBI.
33
+ *
34
+ * nohash:
35
+ * We still do TLB invalidate in the __pte_free_tlb routine before we
36
+ * add the page table pages to mmu gather table batch.
37
+ */
38
+#define tlb_needs_table_invalidate()	radix_enabled()
33
39
 
34
40
 /* Get the generic bits... */
35
41
 #include <asm-generic/tlb.h>
..
..
@@ -40,26 +46,10 @@
40
46
 static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
41
47
 					  unsigned long address)
42
48
 {
43
-#ifdef CONFIG_PPC_STD_MMU_32
49
+#ifdef CONFIG_PPC_BOOK3S_32
44
50
 	if (pte_val(*ptep) & _PAGE_HASHPTE)
45
51
 		flush_hash_entry(tlb->mm, ptep, address);
46
52
 #endif
47
-}
48
-
49
-static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb,
50
-						     unsigned int page_size)
51
-{
52
-	if (!tlb->page_size)
53
-		tlb->page_size = page_size;
54
-	else if (tlb->page_size != page_size) {
55
-		if (!tlb->fullmm)
56
-			tlb_flush_mmu(tlb);
57
-		/*
58
-		 * update the page size after flush for the new
59
-		 * mmu_gather.
60
-		 */
61
-		tlb->page_size = page_size;
62
-	}
63
53
 }
64
54
 
65
55
 #ifdef CONFIG_SMP