add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/arch/sparc/mm/hugetlbpage.c
..
..
@@ -14,7 +14,6 @@
14
14
 
15
15
 #include <asm/mman.h>
16
16
 #include <asm/pgalloc.h>
17
-#include <asm/pgtable.h>
18
17
 #include <asm/tlb.h>
19
18
 #include <asm/tlbflush.h>
20
19
 #include <asm/cacheflush.h>
..
..
@@ -273,15 +272,17 @@
273
272
 	return size;
274
273
 }
275
274
 
276
-pte_t *huge_pte_alloc(struct mm_struct *mm,
275
+pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
277
276
 			unsigned long addr, unsigned long sz)
278
277
 {
279
278
 	pgd_t *pgd;
279
+	p4d_t *p4d;
280
280
 	pud_t *pud;
281
281
 	pmd_t *pmd;
282
282
 
283
283
 	pgd = pgd_offset(mm, addr);
284
-	pud = pud_alloc(mm, pgd, addr);
284
+	p4d = p4d_offset(pgd, addr);
285
+	pud = pud_alloc(mm, p4d, addr);
285
286
 	if (!pud)
286
287
 		return NULL;
287
288
 	if (sz >= PUD_SIZE)
..
..
@@ -298,13 +299,17 @@
298
299
 		       unsigned long addr, unsigned long sz)
299
300
 {
300
301
 	pgd_t *pgd;
302
+	p4d_t *p4d;
301
303
 	pud_t *pud;
302
304
 	pmd_t *pmd;
303
305
 
304
306
 	pgd = pgd_offset(mm, addr);
305
307
 	if (pgd_none(*pgd))
306
308
 		return NULL;
307
-	pud = pud_offset(pgd, addr);
309
+	p4d = p4d_offset(pgd, addr);
310
+	if (p4d_none(*p4d))
311
+		return NULL;
312
+	pud = pud_offset(p4d, addr);
308
313
 	if (pud_none(*pud))
309
314
 		return NULL;
310
315
 	if (is_hugetlb_pud(*pud))
..
..
@@ -449,7 +454,7 @@
449
454
 	mm_dec_nr_pmds(tlb->mm);
450
455
 }
451
456
 
452
-static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
457
+static void hugetlb_free_pud_range(struct mmu_gather *tlb, p4d_t *p4d,
453
458
 				   unsigned long addr, unsigned long end,
454
459
 				   unsigned long floor, unsigned long ceiling)
455
460
 {
..
..
@@ -458,7 +463,7 @@
458
463
 	unsigned long start;
459
464
 
460
465
 	start = addr;
461
-	pud = pud_offset(pgd, addr);
466
+	pud = pud_offset(p4d, addr);
462
467
 	do {
463
468
 		next = pud_addr_end(addr, end);
464
469
 		if (pud_none_or_clear_bad(pud))
..
..
@@ -481,8 +486,8 @@
481
486
 	if (end - 1 > ceiling - 1)
482
487
 		return;
483
488
 
484
-	pud = pud_offset(pgd, start);
485
-	pgd_clear(pgd);
489
+	pud = pud_offset(p4d, start);
490
+	p4d_clear(p4d);
486
491
 	pud_free_tlb(tlb, pud, start);
487
492
 	mm_dec_nr_puds(tlb->mm);
488
493
 }
..
..
@@ -492,6 +497,7 @@
492
497
 			    unsigned long floor, unsigned long ceiling)
493
498
 {
494
499
 	pgd_t *pgd;
500
+	p4d_t *p4d;
495
501
 	unsigned long next;
496
502
 
497
503
 	addr &= PMD_MASK;
..
..
@@ -511,10 +517,11 @@
511
517
 		return;
512
518
 
513
519
 	pgd = pgd_offset(tlb->mm, addr);
520
+	p4d = p4d_offset(pgd, addr);
514
521
 	do {
515
-		next = pgd_addr_end(addr, end);
516
-		if (pgd_none_or_clear_bad(pgd))
522
+		next = p4d_addr_end(addr, end);
523
+		if (p4d_none_or_clear_bad(p4d))
517
524
 			continue;
518
-		hugetlb_free_pud_range(tlb, pgd, addr, next, floor, ceiling);
519
-	} while (pgd++, addr = next, addr != end);
525
+		hugetlb_free_pud_range(tlb, p4d, addr, next, floor, ceiling);
526
+	} while (p4d++, addr = next, addr != end);
520
527
 }