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-rw-r--r--arch/sh/mm/consistent.c2
-rw-r--r--arch/sh/mm/fault.c40
-rw-r--r--arch/sh/mm/hugetlbpage.c2
-rw-r--r--arch/sh/mm/init.c21
-rw-r--r--arch/sh/mm/ioremap.c4
-rw-r--r--arch/sh/mm/tlb-sh3.c19
6 files changed, 39 insertions, 49 deletions
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 1f7af0c73cf4..df3a9e452cc5 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -11,7 +11,7 @@
#include <linux/dma-mapping.h>
#include <asm/io.h>
-void *consistent_alloc(int gfp, size_t size, dma_addr_t *handle)
+void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
{
struct page *page, *end, *free;
void *ret;
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 7abba2161da6..775f86cd3fe8 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -194,10 +194,13 @@ asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
unsigned long address)
{
unsigned long addrmax = P4SEG;
- pgd_t *dir;
+ pgd_t *pgd;
pmd_t *pmd;
pte_t *pte;
pte_t entry;
+ struct mm_struct *mm;
+ spinlock_t *ptl;
+ int ret = 1;
#ifdef CONFIG_SH_KGDB
if (kgdb_nofault && kgdb_bus_err_hook)
@@ -208,28 +211,28 @@ asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
addrmax = P4SEG_STORE_QUE + 0x04000000;
#endif
- if (address >= P3SEG && address < addrmax)
- dir = pgd_offset_k(address);
- else if (address >= TASK_SIZE)
+ if (address >= P3SEG && address < addrmax) {
+ pgd = pgd_offset_k(address);
+ mm = NULL;
+ } else if (address >= TASK_SIZE)
return 1;
- else if (!current->mm)
+ else if (!(mm = current->mm))
return 1;
else
- dir = pgd_offset(current->mm, address);
+ pgd = pgd_offset(mm, address);
- pmd = pmd_offset(dir, address);
- if (pmd_none(*pmd))
- return 1;
- if (pmd_bad(*pmd)) {
- pmd_ERROR(*pmd);
- pmd_clear(pmd);
+ pmd = pmd_offset(pgd, address);
+ if (pmd_none_or_clear_bad(pmd))
return 1;
- }
- pte = pte_offset_kernel(pmd, address);
+ if (mm)
+ pte = pte_offset_map_lock(mm, pmd, address, &ptl);
+ else
+ pte = pte_offset_kernel(pmd, address);
+
entry = *pte;
if (pte_none(entry) || pte_not_present(entry)
|| (writeaccess && !pte_write(entry)))
- return 1;
+ goto unlock;
if (writeaccess)
entry = pte_mkdirty(entry);
@@ -251,8 +254,11 @@ asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
set_pte(pte, entry);
update_mmu_cache(NULL, address, entry);
-
- return 0;
+ ret = 0;
+unlock:
+ if (mm)
+ pte_unmap_unlock(pte, ptl);
+ return ret;
}
void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c
index 95bb1a6c6060..6b7a7688c98e 100644
--- a/arch/sh/mm/hugetlbpage.c
+++ b/arch/sh/mm/hugetlbpage.c
@@ -54,8 +54,6 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
return pte;
}
-#define mk_pte_huge(entry) do { pte_val(entry) |= _PAGE_SZHUGE; } while (0)
-
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t entry)
{
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 4e9c854845a4..e342565f75fb 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -51,11 +51,6 @@ unsigned long mmu_context_cache = NO_CONTEXT;
#define MAX_LOW_PFN (NODE_DATA(0)->bdata->node_low_pfn)
#endif
-#ifdef CONFIG_DISCONTIGMEM
-pg_data_t discontig_page_data[MAX_NUMNODES];
-bootmem_data_t discontig_node_bdata[MAX_NUMNODES];
-#endif
-
void (*copy_page)(void *from, void *to);
void (*clear_page)(void *to);
@@ -216,15 +211,6 @@ void __init paging_init(void)
#endif
NODE_DATA(0)->node_mem_map = NULL;
free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0);
-
-#ifdef CONFIG_DISCONTIGMEM
- /*
- * And for discontig, do some more fixups on the zone sizes..
- */
- zones_size[ZONE_DMA] = __MEMORY_SIZE_2ND >> PAGE_SHIFT;
- zones_size[ZONE_NORMAL] = 0;
- free_area_init_node(1, NODE_DATA(1), zones_size, __MEMORY_START_2ND >> PAGE_SHIFT, 0);
-#endif
}
void __init mem_init(void)
@@ -248,7 +234,7 @@ void __init mem_init(void)
memset(empty_zero_page, 0, PAGE_SIZE);
__flush_wback_region(empty_zero_page, PAGE_SIZE);
- /*
+ /*
* Setup wrappers for copy/clear_page(), these will get overridden
* later in the boot process if a better method is available.
*/
@@ -257,9 +243,6 @@ void __init mem_init(void)
/* this will put all low memory onto the freelists */
totalram_pages += free_all_bootmem_node(NODE_DATA(0));
-#ifdef CONFIG_DISCONTIGMEM
- totalram_pages += free_all_bootmem_node(NODE_DATA(1));
-#endif
reservedpages = 0;
for (tmp = 0; tmp < num_physpages; tmp++)
/*
@@ -286,7 +269,7 @@ void __init mem_init(void)
void free_initmem(void)
{
unsigned long addr;
-
+
addr = (unsigned long)(&__init_begin);
for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));
diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c
index 9f490c2742f0..e794e27a72f1 100644
--- a/arch/sh/mm/ioremap.c
+++ b/arch/sh/mm/ioremap.c
@@ -57,7 +57,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address,
if (address >= end)
BUG();
do {
- pte_t * pte = pte_alloc_kernel(&init_mm, pmd, address);
+ pte_t * pte = pte_alloc_kernel(pmd, address);
if (!pte)
return -ENOMEM;
remap_area_pte(pte, address, end - address, address + phys_addr, flags);
@@ -79,7 +79,6 @@ int remap_area_pages(unsigned long address, unsigned long phys_addr,
flush_cache_all();
if (address >= end)
BUG();
- spin_lock(&init_mm.page_table_lock);
do {
pmd_t *pmd;
pmd = pmd_alloc(&init_mm, dir, address);
@@ -93,7 +92,6 @@ int remap_area_pages(unsigned long address, unsigned long phys_addr,
address = (address + PGDIR_SIZE) & PGDIR_MASK;
dir++;
} while (address && (address < end));
- spin_unlock(&init_mm.page_table_lock);
flush_tlb_all();
return error;
}
diff --git a/arch/sh/mm/tlb-sh3.c b/arch/sh/mm/tlb-sh3.c
index 7a0d5c10bf20..46b09e26e082 100644
--- a/arch/sh/mm/tlb-sh3.c
+++ b/arch/sh/mm/tlb-sh3.c
@@ -40,12 +40,17 @@ void update_mmu_cache(struct vm_area_struct * vma,
return;
#if defined(CONFIG_SH7705_CACHE_32KB)
- struct page *page;
- page = pte_page(pte);
- if (VALID_PAGE(page) && !test_bit(PG_mapped, &page->flags)) {
- unsigned long phys = pte_val(pte) & PTE_PHYS_MASK;
- __flush_wback_region((void *)P1SEGADDR(phys), PAGE_SIZE);
- __set_bit(PG_mapped, &page->flags);
+ {
+ struct page *page = pte_page(pte);
+ unsigned long pfn = pte_pfn(pte);
+
+ if (pfn_valid(pfn) && !test_bit(PG_mapped, &page->flags)) {
+ unsigned long phys = pte_val(pte) & PTE_PHYS_MASK;
+
+ __flush_wback_region((void *)P1SEGADDR(phys),
+ PAGE_SIZE);
+ __set_bit(PG_mapped, &page->flags);
+ }
}
#endif
@@ -80,7 +85,7 @@ void __flush_tlb_page(unsigned long asid, unsigned long page)
*/
addr = MMU_TLB_ADDRESS_ARRAY | (page & 0x1F000);
data = (page & 0xfffe0000) | asid; /* VALID bit is off */
-
+
if ((cpu_data->flags & CPU_HAS_MMU_PAGE_ASSOC)) {
addr |= MMU_PAGE_ASSOC_BIT;
ways = 1; /* we already know the way .. */
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-05 22:09:36 +0100