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Diffstat (limited to 'arch/x86/mm/ioremap.c')
-rw-r--r--arch/x86/mm/ioremap.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 115f13ee40c..24c1d3c3018 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
+#include <linux/mmiotrace.h>
#include <asm/cacheflush.h>
#include <asm/e820.h>
@@ -122,10 +123,13 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
{
unsigned long pfn, offset, vaddr;
resource_size_t last_addr;
+ const resource_size_t unaligned_phys_addr = phys_addr;
+ const unsigned long unaligned_size = size;
struct vm_struct *area;
unsigned long new_prot_val;
pgprot_t prot;
int retval;
+ void __iomem *ret_addr;
/* Don't allow wraparound or zero size */
last_addr = phys_addr + size - 1;
@@ -233,7 +237,10 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
return NULL;
}
- return (void __iomem *) (vaddr + offset);
+ ret_addr = (void __iomem *) (vaddr + offset);
+ mmiotrace_ioremap(unaligned_phys_addr, unaligned_size, ret_addr);
+
+ return ret_addr;
}
/**
@@ -348,6 +355,8 @@ void iounmap(volatile void __iomem *addr)
addr = (volatile void __iomem *)
(PAGE_MASK & (unsigned long __force)addr);
+ mmiotrace_iounmap(addr);
+
/* Use the vm area unlocked, assuming the caller
ensures there isn't another iounmap for the same address
in parallel. Reuse of the virtual address is prevented by