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-rw-r--r--arch/xtensa/mm/cache.c2
-rw-r--r--arch/xtensa/mm/fault.c12
-rw-r--r--arch/xtensa/mm/highmem.c24
-rw-r--r--arch/xtensa/mm/init.c8
-rw-r--r--arch/xtensa/mm/ioremap.c2
-rw-r--r--arch/xtensa/mm/kasan_init.c10
-rw-r--r--arch/xtensa/mm/misc.S2
-rw-r--r--arch/xtensa/mm/mmu.c5
8 files changed, 26 insertions, 39 deletions
diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index b27359e2a464..2369433b734a 100644
--- a/arch/xtensa/mm/cache.c
+++ b/arch/xtensa/mm/cache.c
@@ -24,6 +24,7 @@
#include <linux/memblock.h>
#include <linux/swap.h>
#include <linux/pagemap.h>
+#include <linux/pgtable.h>
#include <asm/bootparam.h>
#include <asm/mmu_context.h>
@@ -31,7 +32,6 @@
#include <asm/tlbflush.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
/*
* Note:
diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c
index e7172bd53ced..c4decc73fd86 100644
--- a/arch/xtensa/mm/fault.c
+++ b/arch/xtensa/mm/fault.c
@@ -74,7 +74,7 @@ void do_page_fault(struct pt_regs *regs)
if (user_mode(regs))
flags |= FAULT_FLAG_USER;
retry:
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
vma = find_vma(mm, address);
if (!vma)
@@ -130,7 +130,7 @@ good_area:
if (fault & VM_FAULT_RETRY) {
flags |= FAULT_FLAG_TRIED;
- /* No need to up_read(&mm->mmap_sem) as we would
+ /* No need to mmap_read_unlock(mm) as we would
* have already released it in __lock_page_or_retry
* in mm/filemap.c.
*/
@@ -139,7 +139,7 @@ good_area:
}
}
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
if (flags & VM_FAULT_MAJOR)
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
@@ -152,7 +152,7 @@ good_area:
* Fix it, but check if it's kernel or user first..
*/
bad_area:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
if (user_mode(regs)) {
current->thread.bad_vaddr = address;
current->thread.error_code = is_write;
@@ -167,7 +167,7 @@ bad_area:
* us unable to handle the page fault gracefully.
*/
out_of_memory:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
if (!user_mode(regs))
bad_page_fault(regs, address, SIGKILL);
else
@@ -175,7 +175,7 @@ out_of_memory:
return;
do_sigbus:
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
/* Send a sigbus, regardless of whether we were in kernel
* or user mode.
diff --git a/arch/xtensa/mm/highmem.c b/arch/xtensa/mm/highmem.c
index 184ceadccc1a..673196fe862e 100644
--- a/arch/xtensa/mm/highmem.c
+++ b/arch/xtensa/mm/highmem.c
@@ -37,29 +37,24 @@ static inline enum fixed_addresses kmap_idx(int type, unsigned long color)
color;
}
-void *kmap_atomic(struct page *page)
+void *kmap_atomic_high_prot(struct page *page, pgprot_t prot)
{
enum fixed_addresses idx;
unsigned long vaddr;
- preempt_disable();
- pagefault_disable();
- if (!PageHighMem(page))
- return page_address(page);
-
idx = kmap_idx(kmap_atomic_idx_push(),
DCACHE_ALIAS(page_to_phys(page)));
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
BUG_ON(!pte_none(*(kmap_pte + idx)));
#endif
- set_pte(kmap_pte + idx, mk_pte(page, PAGE_KERNEL_EXEC));
+ set_pte(kmap_pte + idx, mk_pte(page, prot));
return (void *)vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(kmap_atomic_high_prot);
-void __kunmap_atomic(void *kvaddr)
+void kunmap_atomic_high(void *kvaddr)
{
if (kvaddr >= (void *)FIXADDR_START &&
kvaddr < (void *)FIXADDR_TOP) {
@@ -78,18 +73,19 @@ void __kunmap_atomic(void *kvaddr)
kmap_atomic_idx_pop();
}
-
- pagefault_enable();
- preempt_enable();
}
-EXPORT_SYMBOL(__kunmap_atomic);
+EXPORT_SYMBOL(kunmap_atomic_high);
void __init kmap_init(void)
{
unsigned long kmap_vstart;
+ /* Check if this memory layout is broken because PKMAP overlaps
+ * page table.
+ */
+ BUILD_BUG_ON(PKMAP_BASE < TLBTEMP_BASE_1 + TLBTEMP_SIZE);
/* cache the first kmap pte */
kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN);
- kmap_pte = kmap_get_fixmap_pte(kmap_vstart);
+ kmap_pte = virt_to_kpte(kmap_vstart);
kmap_waitqueues_init();
}
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 19c625e6d81f..a05b306cf371 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -70,13 +70,13 @@ void __init bootmem_init(void)
void __init zones_init(void)
{
/* All pages are DMA-able, so we put them all in the DMA zone. */
- unsigned long zones_size[MAX_NR_ZONES] = {
- [ZONE_NORMAL] = max_low_pfn - ARCH_PFN_OFFSET,
+ unsigned long max_zone_pfn[MAX_NR_ZONES] = {
+ [ZONE_NORMAL] = max_low_pfn,
#ifdef CONFIG_HIGHMEM
- [ZONE_HIGHMEM] = max_pfn - max_low_pfn,
+ [ZONE_HIGHMEM] = max_pfn,
#endif
};
- free_area_init_node(0, zones_size, ARCH_PFN_OFFSET, NULL);
+ free_area_init(max_zone_pfn);
}
#ifdef CONFIG_HIGHMEM
diff --git a/arch/xtensa/mm/ioremap.c b/arch/xtensa/mm/ioremap.c
index 9ea3f21d60c7..a400188c16b9 100644
--- a/arch/xtensa/mm/ioremap.c
+++ b/arch/xtensa/mm/ioremap.c
@@ -7,9 +7,9 @@
#include <linux/io.h>
#include <linux/vmalloc.h>
+#include <linux/pgtable.h>
#include <asm/cacheflush.h>
#include <asm/io.h>
-#include <asm/pgtable.h>
static void __iomem *xtensa_ioremap(unsigned long paddr, unsigned long size,
pgprot_t prot)
diff --git a/arch/xtensa/mm/kasan_init.c b/arch/xtensa/mm/kasan_init.c
index e3baa21ff24c..1fef24db2ff6 100644
--- a/arch/xtensa/mm/kasan_init.c
+++ b/arch/xtensa/mm/kasan_init.c
@@ -19,10 +19,7 @@
void __init kasan_early_init(void)
{
unsigned long vaddr = KASAN_SHADOW_START;
- pgd_t *pgd = pgd_offset_k(vaddr);
- p4d_t *p4d = p4d_offset(pgd, vaddr);
- pud_t *pud = pud_offset(p4d, vaddr);
- pmd_t *pmd = pmd_offset(pud, vaddr);
+ pmd_t *pmd = pmd_off_k(vaddr);
int i;
for (i = 0; i < PTRS_PER_PTE; ++i)
@@ -43,10 +40,7 @@ static void __init populate(void *start, void *end)
unsigned long n_pmds = n_pages / PTRS_PER_PTE;
unsigned long i, j;
unsigned long vaddr = (unsigned long)start;
- pgd_t *pgd = pgd_offset_k(vaddr);
- p4d_t *p4d = p4d_offset(pgd, vaddr);
- pud_t *pud = pud_offset(p4d, vaddr);
- pmd_t *pmd = pmd_offset(pud, vaddr);
+ pmd_t *pmd = pmd_off_k(vaddr);
pte_t *pte = memblock_alloc(n_pages * sizeof(pte_t), PAGE_SIZE);
if (!pte)
diff --git a/arch/xtensa/mm/misc.S b/arch/xtensa/mm/misc.S
index 6aa036c427c3..25cd67debee6 100644
--- a/arch/xtensa/mm/misc.S
+++ b/arch/xtensa/mm/misc.S
@@ -14,8 +14,8 @@
#include <linux/linkage.h>
+#include <linux/pgtable.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
#include <asm/asmmacro.h>
#include <asm/cacheasm.h>
#include <asm/tlbflush.h>
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index 37e478a27877..fd2193df8a14 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -21,10 +21,7 @@
#if defined(CONFIG_HIGHMEM)
static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages)
{
- pgd_t *pgd = pgd_offset_k(vaddr);
- p4d_t *p4d = p4d_offset(pgd, vaddr);
- pud_t *pud = pud_offset(p4d, vaddr);
- pmd_t *pmd = pmd_offset(pud, vaddr);
+ pmd_t *pmd = pmd_off_k(vaddr);
pte_t *pte;
unsigned long i;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 14:51:35 +0300