powerpc: Make set_dabr() a ppc_md function

[karo-tx-linux.git] / arch / powerpc / platforms / pseries / setup.c

diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index c0a3d918148ad2fac0677fc476d79b1820350b15..ee468f07f37894462df958ab67a15b5bce511ccf 100644 (file)
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -350,6 +350,16 @@ static void pSeries_mach_cpu_die(void)
        for(;;);
 }
 
+static int pseries_set_dabr(unsigned long dabr)
+{
+       if (firmware_has_feature(FW_FEATURE_XDABR)) {
+               /* We want to catch accesses from kernel and userspace */
+               return plpar_set_xdabr(dabr, H_DABRX_KERNEL | H_DABRX_USER);
+       }
+
+       return plpar_set_dabr(dabr);
+}
+
 
 /*
  * Early initialization.  Relocation is on but do not reference unbolted pages
@@ -385,6 +395,8 @@ static void __init pSeries_init_early(void)
                DBG("Hello World !\n");
        }
 
+       if (firmware_has_feature(FW_FEATURE_XDABR | FW_FEATURE_DABR))
+               ppc_md.set_dabr = pseries_set_dabr;
 
        iommu_init_early_pSeries();