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-rw-r--r--arch/mn10300/mm/cache-dbg-flush-by-reg.S4
-rw-r--r--arch/mn10300/mm/cache-smp.c8
-rw-r--r--arch/mn10300/mm/dma-alloc.c1
-rw-r--r--arch/mn10300/mm/fault.c43
-rw-r--r--arch/mn10300/mm/init.c55
-rw-r--r--arch/mn10300/mm/misalignment.c3
-rw-r--r--arch/mn10300/mm/pgtable.c12
-rw-r--r--arch/mn10300/mm/tlb-smp.c37
8 files changed, 71 insertions, 92 deletions
diff --git a/arch/mn10300/mm/cache-dbg-flush-by-reg.S b/arch/mn10300/mm/cache-dbg-flush-by-reg.S
index 665919f2ab6..a775ea5d7ce 100644
--- a/arch/mn10300/mm/cache-dbg-flush-by-reg.S
+++ b/arch/mn10300/mm/cache-dbg-flush-by-reg.S
@@ -120,14 +120,14 @@ debugger_local_cache_flushinv_one:
# conditionally purge this line in all ways
mov d1,(L1_CACHE_WAYDISP*0,a0)
-debugger_local_cache_flushinv_no_dcache:
+debugger_local_cache_flushinv_one_no_dcache:
#
# now try to flush the icache
#
mov CHCTR,a0
movhu (a0),d0
btst CHCTR_ICEN,d0
- beq mn10300_local_icache_inv_range_reg_end
+ beq debugger_local_cache_flushinv_one_end
LOCAL_CLI_SAVE(d1)
diff --git a/arch/mn10300/mm/cache-smp.c b/arch/mn10300/mm/cache-smp.c
index 4a6e9a4b5b2..2d23b9eeee6 100644
--- a/arch/mn10300/mm/cache-smp.c
+++ b/arch/mn10300/mm/cache-smp.c
@@ -74,7 +74,7 @@ void smp_cache_interrupt(void)
break;
}
- cpu_clear(smp_processor_id(), smp_cache_ipi_map);
+ cpumask_clear_cpu(smp_processor_id(), &smp_cache_ipi_map);
}
/**
@@ -94,12 +94,12 @@ void smp_cache_call(unsigned long opr_mask,
smp_cache_mask = opr_mask;
smp_cache_start = start;
smp_cache_end = end;
- smp_cache_ipi_map = cpu_online_map;
- cpu_clear(smp_processor_id(), smp_cache_ipi_map);
+ cpumask_copy(&smp_cache_ipi_map, cpu_online_mask);
+ cpumask_clear_cpu(smp_processor_id(), &smp_cache_ipi_map);
send_IPI_allbutself(FLUSH_CACHE_IPI);
- while (!cpus_empty(smp_cache_ipi_map))
+ while (!cpumask_empty(&smp_cache_ipi_map))
/* nothing. lockup detection does not belong here */
mb();
}
diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c
index 159acb02cfd..e244ebe637e 100644
--- a/arch/mn10300/mm/dma-alloc.c
+++ b/arch/mn10300/mm/dma-alloc.c
@@ -15,6 +15,7 @@
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/gfp.h>
+#include <linux/export.h>
#include <asm/io.h>
static unsigned long pci_sram_allocated = 0xbc000000;
diff --git a/arch/mn10300/mm/fault.c b/arch/mn10300/mm/fault.c
index 0945409a802..3516cbdf1ee 100644
--- a/arch/mn10300/mm/fault.c
+++ b/arch/mn10300/mm/fault.c
@@ -24,7 +24,6 @@
#include <linux/init.h>
#include <linux/vt_kern.h> /* For unblank_screen() */
-#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/hardirq.h>
@@ -124,7 +123,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long fault_code,
struct mm_struct *mm;
unsigned long page;
siginfo_t info;
- int write, fault;
+ int fault;
+ unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
#ifdef CONFIG_GDBSTUB
/* handle GDB stub causing a fault */
@@ -171,6 +171,9 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long fault_code,
if (in_atomic() || !mm)
goto no_context;
+ if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR)
+ flags |= FAULT_FLAG_USER;
+retry:
down_read(&mm->mmap_sem);
vma = find_vma(mm, address);
@@ -221,7 +224,6 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long fault_code,
*/
good_area:
info.si_code = SEGV_ACCERR;
- write = 0;
switch (fault_code & (MMUFCR_xFC_PGINVAL|MMUFCR_xFC_TYPE)) {
default: /* 3: write, present */
case MMUFCR_xFC_TYPE_WRITE:
@@ -233,7 +235,7 @@ good_area:
case MMUFCR_xFC_PGINVAL | MMUFCR_xFC_TYPE_WRITE:
if (!(vma->vm_flags & VM_WRITE))
goto bad_area;
- write++;
+ flags |= FAULT_FLAG_WRITE;
break;
/* read from protected page */
@@ -252,7 +254,11 @@ good_area:
* make sure we exit gracefully rather than endlessly redo
* the fault.
*/
- fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0);
+ fault = handle_mm_fault(mm, vma, address, flags);
+
+ if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+ return;
+
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
@@ -260,10 +266,22 @@ good_area:
goto do_sigbus;
BUG();
}
- if (fault & VM_FAULT_MAJOR)
- current->maj_flt++;
- else
- current->min_flt++;
+ if (flags & FAULT_FLAG_ALLOW_RETRY) {
+ if (fault & VM_FAULT_MAJOR)
+ current->maj_flt++;
+ else
+ current->min_flt++;
+ if (fault & VM_FAULT_RETRY) {
+ flags &= ~FAULT_FLAG_ALLOW_RETRY;
+
+ /* No need to up_read(&mm->mmap_sem) as we would
+ * have already released it in __lock_page_or_retry
+ * in mm/filemap.c.
+ */
+
+ goto retry;
+ }
+ }
up_read(&mm->mmap_sem);
return;
@@ -329,9 +347,10 @@ no_context:
*/
out_of_memory:
up_read(&mm->mmap_sem);
- printk(KERN_ALERT "VM: killing process %s\n", tsk->comm);
- if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR)
- do_exit(SIGKILL);
+ if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) {
+ pagefault_out_of_memory();
+ return;
+ }
goto no_context;
do_sigbus:
diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c
index 48907cc3bdb..97a1ec0beee 100644
--- a/arch/mn10300/mm/init.c
+++ b/arch/mn10300/mm/init.c
@@ -29,7 +29,6 @@
#include <linux/gfp.h>
#include <asm/processor.h>
-#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
@@ -37,8 +36,6 @@
#include <asm/tlb.h>
#include <asm/sections.h>
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
unsigned long highstart_pfn, highend_pfn;
#ifdef CONFIG_MN10300_HAS_ATOMIC_OPS_UNIT
@@ -102,60 +99,21 @@ void __init paging_init(void)
*/
void __init mem_init(void)
{
- int codesize, reservedpages, datasize, initsize;
- int tmp;
-
BUG_ON(!mem_map);
#define START_PFN (contig_page_data.bdata->node_min_pfn)
#define MAX_LOW_PFN (contig_page_data.bdata->node_low_pfn)
- max_mapnr = num_physpages = MAX_LOW_PFN - START_PFN;
+ max_mapnr = MAX_LOW_PFN - START_PFN;
high_memory = (void *) __va(MAX_LOW_PFN * PAGE_SIZE);
/* clear the zero-page */
memset(empty_zero_page, 0, PAGE_SIZE);
/* this will put all low memory onto the freelists */
- totalram_pages += free_all_bootmem();
-
- reservedpages = 0;
- for (tmp = 0; tmp < num_physpages; tmp++)
- if (PageReserved(&mem_map[tmp]))
- reservedpages++;
-
- codesize = (unsigned long) &_etext - (unsigned long) &_stext;
- datasize = (unsigned long) &_edata - (unsigned long) &_etext;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk(KERN_INFO
- "Memory: %luk/%luk available"
- " (%dk kernel code, %dk reserved, %dk data, %dk init,"
- " %ldk highmem)\n",
- nr_free_pages() << (PAGE_SHIFT - 10),
- max_mapnr << (PAGE_SHIFT - 10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT - 10),
- datasize >> 10,
- initsize >> 10,
- totalhigh_pages << (PAGE_SHIFT - 10));
-}
+ free_all_bootmem();
-/*
- *
- */
-void free_init_pages(char *what, unsigned long begin, unsigned long end)
-{
- unsigned long addr;
-
- for (addr = begin; addr < end; addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- memset((void *) addr, 0xcc, PAGE_SIZE);
- free_page(addr);
- totalram_pages++;
- }
- printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+ mem_init_print_info(NULL);
}
/*
@@ -163,9 +121,7 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end)
*/
void free_initmem(void)
{
- free_init_pages("unused kernel memory",
- (unsigned long) &__init_begin,
- (unsigned long) &__init_end);
+ free_initmem_default(POISON_FREE_INITMEM);
}
/*
@@ -174,6 +130,7 @@ void free_initmem(void)
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- free_init_pages("initrd memory", start, end);
+ free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM,
+ "initrd");
}
#endif
diff --git a/arch/mn10300/mm/misalignment.c b/arch/mn10300/mm/misalignment.c
index eef989c1d0c..b9920b1edd5 100644
--- a/arch/mn10300/mm/misalignment.c
+++ b/arch/mn10300/mm/misalignment.c
@@ -23,10 +23,9 @@
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <asm/processor.h>
-#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/io.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/smp.h>
#include <asm/pgalloc.h>
#include <asm/cpu-regs.h>
diff --git a/arch/mn10300/mm/pgtable.c b/arch/mn10300/mm/pgtable.c
index 450f7ba3f8f..e77a7c72808 100644
--- a/arch/mn10300/mm/pgtable.c
+++ b/arch/mn10300/mm/pgtable.c
@@ -21,7 +21,6 @@
#include <linux/spinlock.h>
#include <linux/quicklist.h>
-#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/tlb.h>
@@ -79,8 +78,13 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
#else
pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
#endif
- if (pte)
- clear_highpage(pte);
+ if (!pte)
+ return NULL;
+ clear_highpage(pte);
+ if (!pgtable_page_ctor(pte)) {
+ __free_page(pte);
+ return NULL;
+ }
return pte;
}
@@ -96,7 +100,7 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
* checks at dup_mmap(), exec(), and other mmlist addition points
* could be used. The locking scheme was chosen on the basis of
* manfred's recommendations and having no core impact whatsoever.
- * -- wli
+ * -- nyc
*/
DEFINE_SPINLOCK(pgd_lock);
struct page *pgd_list;
diff --git a/arch/mn10300/mm/tlb-smp.c b/arch/mn10300/mm/tlb-smp.c
index 0b6a5ad1960..e5d0ef722bf 100644
--- a/arch/mn10300/mm/tlb-smp.c
+++ b/arch/mn10300/mm/tlb-smp.c
@@ -24,7 +24,6 @@
#include <linux/profile.h>
#include <linux/smp.h>
#include <asm/tlbflush.h>
-#include <asm/system.h>
#include <asm/bitops.h>
#include <asm/processor.h>
#include <asm/bug.h>
@@ -64,7 +63,7 @@ void smp_flush_tlb(void *unused)
cpu_id = get_cpu();
- if (!cpu_isset(cpu_id, flush_cpumask))
+ if (!cpumask_test_cpu(cpu_id, &flush_cpumask))
/* This was a BUG() but until someone can quote me the line
* from the intel manual that guarantees an IPI to multiple
* CPUs is retried _only_ on the erroring CPUs its staying as a
@@ -79,9 +78,9 @@ void smp_flush_tlb(void *unused)
else
local_flush_tlb_page(flush_mm, flush_va);
- smp_mb__before_clear_bit();
- cpu_clear(cpu_id, flush_cpumask);
- smp_mb__after_clear_bit();
+ smp_mb__before_atomic();
+ cpumask_clear_cpu(cpu_id, &flush_cpumask);
+ smp_mb__after_atomic();
out:
put_cpu();
}
@@ -103,11 +102,11 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
* - we do not send IPIs to as-yet unbooted CPUs.
*/
BUG_ON(!mm);
- BUG_ON(cpus_empty(cpumask));
- BUG_ON(cpu_isset(smp_processor_id(), cpumask));
+ BUG_ON(cpumask_empty(&cpumask));
+ BUG_ON(cpumask_test_cpu(smp_processor_id(), &cpumask));
- cpus_and(tmp, cpumask, cpu_online_map);
- BUG_ON(!cpus_equal(cpumask, tmp));
+ cpumask_and(&tmp, &cpumask, cpu_online_mask);
+ BUG_ON(!cpumask_equal(&cpumask, &tmp));
/* I'm not happy about this global shared spinlock in the MM hot path,
* but we'll see how contended it is.
@@ -128,7 +127,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
/* FIXME: if NR_CPUS>=3, change send_IPI_mask */
smp_call_function(smp_flush_tlb, NULL, 1);
- while (!cpus_empty(flush_cpumask))
+ while (!cpumask_empty(&flush_cpumask))
/* Lockup detection does not belong here */
smp_mb();
@@ -146,11 +145,11 @@ void flush_tlb_mm(struct mm_struct *mm)
cpumask_t cpu_mask;
preempt_disable();
- cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
local_flush_tlb();
- if (!cpus_empty(cpu_mask))
+ if (!cpumask_empty(&cpu_mask))
flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
preempt_enable();
@@ -165,11 +164,11 @@ void flush_tlb_current_task(void)
cpumask_t cpu_mask;
preempt_disable();
- cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
local_flush_tlb();
- if (!cpus_empty(cpu_mask))
+ if (!cpumask_empty(&cpu_mask))
flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
preempt_enable();
@@ -186,11 +185,11 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
cpumask_t cpu_mask;
preempt_disable();
- cpu_mask = mm->cpu_vm_mask;
- cpu_clear(smp_processor_id(), cpu_mask);
+ cpumask_copy(&cpu_mask, mm_cpumask(mm));
+ cpumask_clear_cpu(smp_processor_id(), &cpu_mask);
local_flush_tlb_page(mm, va);
- if (!cpus_empty(cpu_mask))
+ if (!cpumask_empty(&cpu_mask))
flush_tlb_others(cpu_mask, mm, va);
preempt_enable();
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-14 01:38:46 +0000