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Diffstat (limited to 'arch/arm64/mm')
-rw-r--r--arch/arm64/mm/fault.c13
-rw-r--r--arch/arm64/mm/flush.c9
-rw-r--r--arch/arm64/mm/init.c2
3 files changed, 12 insertions, 12 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 1909a69983ca..afadae6682ed 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -36,6 +36,8 @@
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
+static const char *fault_name(unsigned int esr);
+
/*
* Dump out the page tables associated with 'addr' in mm 'mm'.
*/
@@ -112,8 +114,9 @@ static void __do_user_fault(struct task_struct *tsk, unsigned long addr,
struct siginfo si;
if (show_unhandled_signals) {
- pr_info("%s[%d]: unhandled page fault (%d) at 0x%08lx, code 0x%03x\n",
- tsk->comm, task_pid_nr(tsk), sig, addr, esr);
+ pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x\n",
+ tsk->comm, task_pid_nr(tsk), fault_name(esr), sig,
+ addr, esr);
show_pte(tsk->mm, addr);
show_regs(regs);
}
@@ -450,6 +453,12 @@ static struct fault_info {
{ do_bad, SIGBUS, 0, "unknown 63" },
};
+static const char *fault_name(unsigned int esr)
+{
+ const struct fault_info *inf = fault_info + (esr & 63);
+ return inf->name;
+}
+
/*
* Dispatch a data abort to the relevant handler.
*/
diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c
index c144adb1682f..88611c3a421a 100644
--- a/arch/arm64/mm/flush.c
+++ b/arch/arm64/mm/flush.c
@@ -27,10 +27,6 @@
#include "mm.h"
-void flush_cache_mm(struct mm_struct *mm)
-{
-}
-
void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end)
{
@@ -38,11 +34,6 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
__flush_icache_all();
}
-void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr,
- unsigned long pfn)
-{
-}
-
static void flush_ptrace_access(struct vm_area_struct *vma, struct page *page,
unsigned long uaddr, void *kaddr,
unsigned long len)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index efbf7df05d3f..800aac306a08 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -79,7 +79,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
#ifdef CONFIG_ZONE_DMA32
/* 4GB maximum for 32-bit only capable devices */
- max_dma32 = min(max, MAX_DMA32_PFN);
+ max_dma32 = max(min, min(max, MAX_DMA32_PFN));
zone_size[ZONE_DMA32] = max_dma32 - min;
#endif
zone_size[ZONE_NORMAL] = max - max_dma32;