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-rw-r--r--arch/unicore32/mm/alignment.c1
-rw-r--r--arch/unicore32/mm/fault.c22
-rw-r--r--arch/unicore32/mm/init.c58
-rw-r--r--arch/unicore32/mm/ioremap.c4
-rw-r--r--arch/unicore32/mm/mmu.c2
-rw-r--r--arch/unicore32/mm/proc-syms.c2
6 files changed, 24 insertions, 65 deletions
diff --git a/arch/unicore32/mm/alignment.c b/arch/unicore32/mm/alignment.c
index de7dc5fdd58..24e836023e6 100644
--- a/arch/unicore32/mm/alignment.c
+++ b/arch/unicore32/mm/alignment.c
@@ -21,6 +21,7 @@
#include <linux/sched.h>
#include <linux/uaccess.h>
+#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include <asm/unaligned.h>
diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c
index f9b5c10bcce..0dc922dba91 100644
--- a/arch/unicore32/mm/fault.c
+++ b/arch/unicore32/mm/fault.c
@@ -209,8 +209,7 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
struct task_struct *tsk;
struct mm_struct *mm;
int fault, sig, code;
- unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
- ((!(fsr ^ 0x12)) ? FAULT_FLAG_WRITE : 0);
+ unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
tsk = current;
mm = tsk->mm;
@@ -222,6 +221,11 @@ static int do_pf(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
if (in_atomic() || !mm)
goto no_context;
+ if (user_mode(regs))
+ flags |= FAULT_FLAG_USER;
+ if (!(fsr ^ 0x12))
+ flags |= FAULT_FLAG_WRITE;
+
/*
* As per x86, we may deadlock here. However, since the kernel only
* validly references user space from well defined areas of the code,
@@ -278,6 +282,13 @@ retry:
(VM_FAULT_ERROR | VM_FAULT_BADMAP | VM_FAULT_BADACCESS))))
return 0;
+ /*
+ * If we are in kernel mode at this point, we
+ * have no context to handle this fault with.
+ */
+ if (!user_mode(regs))
+ goto no_context;
+
if (fault & VM_FAULT_OOM) {
/*
* We ran out of memory, call the OOM killer, and return to
@@ -288,13 +299,6 @@ retry:
return 0;
}
- /*
- * If we are in kernel mode at this point, we
- * have no context to handle this fault with.
- */
- if (!user_mode(regs))
- goto no_context;
-
if (fault & VM_FAULT_SIGBUS) {
/*
* We had some memory, but were unable to
diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c
index 63df12d71ce..be2bde9b07c 100644
--- a/arch/unicore32/mm/init.c
+++ b/arch/unicore32/mm/init.c
@@ -66,9 +66,6 @@ void show_mem(unsigned int filter)
printk(KERN_DEFAULT "Mem-info:\n");
show_free_areas(filter);
- if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
- return;
-
for_each_bank(i, mi) {
struct membank *bank = &mi->bank[i];
unsigned int pfn1, pfn2;
@@ -383,59 +380,14 @@ static void __init free_unused_memmap(struct meminfo *mi)
*/
void __init mem_init(void)
{
- unsigned long reserved_pages, free_pages;
- struct memblock_region *reg;
- int i;
-
max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
free_unused_memmap(&meminfo);
/* this will put all unused low memory onto the freelists */
- totalram_pages += free_all_bootmem();
-
- reserved_pages = free_pages = 0;
-
- for_each_bank(i, &meminfo) {
- struct membank *bank = &meminfo.bank[i];
- unsigned int pfn1, pfn2;
- struct page *page, *end;
-
- pfn1 = bank_pfn_start(bank);
- pfn2 = bank_pfn_end(bank);
-
- page = pfn_to_page(pfn1);
- end = pfn_to_page(pfn2 - 1) + 1;
-
- do {
- if (PageReserved(page))
- reserved_pages++;
- else if (!page_count(page))
- free_pages++;
- page++;
- } while (page < end);
- }
-
- /*
- * Since our memory may not be contiguous, calculate the
- * real number of pages we have in this system
- */
- printk(KERN_INFO "Memory:");
- num_physpages = 0;
- for_each_memblock(memory, reg) {
- unsigned long pages = memblock_region_memory_end_pfn(reg) -
- memblock_region_memory_base_pfn(reg);
- num_physpages += pages;
- printk(" %ldMB", pages >> (20 - PAGE_SHIFT));
- }
- printk(" = %luMB total\n", num_physpages >> (20 - PAGE_SHIFT));
-
- printk(KERN_NOTICE "Memory: %luk/%luk available, %luk reserved, %luK highmem\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- free_pages << (PAGE_SHIFT-10),
- reserved_pages << (PAGE_SHIFT-10),
- totalhigh_pages << (PAGE_SHIFT-10));
+ free_all_bootmem();
+ mem_init_print_info(NULL);
printk(KERN_NOTICE "Virtual kernel memory layout:\n"
" vector : 0x%08lx - 0x%08lx (%4ld kB)\n"
" vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
@@ -464,7 +416,7 @@ void __init mem_init(void)
BUILD_BUG_ON(TASK_SIZE > MODULES_VADDR);
BUG_ON(TASK_SIZE > MODULES_VADDR);
- if (PAGE_SIZE >= 16384 && num_physpages <= 128) {
+ if (PAGE_SIZE >= 16384 && get_num_physpages() <= 128) {
/*
* On a machine this small we won't get
* anywhere without overcommit, so turn
@@ -476,7 +428,7 @@ void __init mem_init(void)
void free_initmem(void)
{
- free_initmem_default(0);
+ free_initmem_default(-1);
}
#ifdef CONFIG_BLK_DEV_INITRD
@@ -486,7 +438,7 @@ static int keep_initrd;
void free_initrd_mem(unsigned long start, unsigned long end)
{
if (!keep_initrd)
- free_reserved_area(start, end, 0, "initrd");
+ free_reserved_area((void *)start, (void *)end, -1, "initrd");
}
static int __init keepinitrd_setup(char *__unused)
diff --git a/arch/unicore32/mm/ioremap.c b/arch/unicore32/mm/ioremap.c
index 13068ee22f3..bf012b2b71a 100644
--- a/arch/unicore32/mm/ioremap.c
+++ b/arch/unicore32/mm/ioremap.c
@@ -144,11 +144,11 @@ void __iomem *__uc32_ioremap_pfn_caller(unsigned long pfn,
* Don't allow RAM to be mapped
*/
if (pfn_valid(pfn)) {
- printk(KERN_WARNING "BUG: Your driver calls ioremap() on\n"
+ WARN(1, "BUG: Your driver calls ioremap() on\n"
"system memory. This leads to architecturally\n"
"unpredictable behaviour, and ioremap() will fail in\n"
"the next kernel release. Please fix your driver.\n");
- WARN_ON(1);
+ return NULL;
}
type = get_mem_type(mtype);
diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c
index 43c20b40e44..4f5a532bee1 100644
--- a/arch/unicore32/mm/mmu.c
+++ b/arch/unicore32/mm/mmu.c
@@ -445,7 +445,7 @@ void __init paging_init(void)
* the user-mode pages. This will then ensure that we have predictable
* results when turning the mmu off
*/
-void setup_mm_for_reboot(char mode)
+void setup_mm_for_reboot(void)
{
unsigned long base_pmdval;
pgd_t *pgd;
diff --git a/arch/unicore32/mm/proc-syms.c b/arch/unicore32/mm/proc-syms.c
index f30071e3665..21c00fc85c9 100644
--- a/arch/unicore32/mm/proc-syms.c
+++ b/arch/unicore32/mm/proc-syms.c
@@ -19,5 +19,7 @@
EXPORT_SYMBOL(cpu_dcache_clean_area);
EXPORT_SYMBOL(cpu_set_pte);
+EXPORT_SYMBOL(__cpuc_coherent_kern_range);
+
EXPORT_SYMBOL(__cpuc_dma_flush_range);
EXPORT_SYMBOL(__cpuc_dma_clean_range);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 08:18:43 +0000