omap iommu: add TLB preservation support

This patch adds TLB preservation support to IOMMU module

Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c
index d29ebff6fde3..e82da680d908 100644
--- a/arch/arm/mach-omap2/iommu2.c
+++ b/arch/arm/mach-omap2/iommu2.c
@@ -147,6 +147,7 @@ static u32 omap2_iommu_fault_isr(struct iommu *obj, u32 *ra)
         printk("\n");
 
         iommu_write_reg(obj, stat, MMU_IRQSTATUS);
+        omap2_iommu_disable(obj);
         return stat;
 }
 
@@ -212,7 +213,8 @@ static ssize_t omap2_dump_cr(struct iommu *obj, struct cr_regs *cr, char *buf)
         char *p = buf;
 
         /* FIXME: Need more detail analysis of cam/ram */
-        p += sprintf(p, "%08x %08x\n", cr->cam, cr->ram);
+        p += sprintf(p, "%08x %08x %01x\n", cr->cam, cr->ram,
+                                        (cr->cam & MMU_CAM_P) ? 1 : 0);
 
         return p - buf;
 }