powerpc: Make set_dabr() a ppc_md function

Move pSeries specific code in set_dabr() into a ppc_md function, this will
allow us to keep plpar_wrappers.h private to platforms/pseries.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 8f85dabe4df322f2f44a29150f349a9497de7626..96843211cc5c3187ff09fbe8c6690626f9792f93 100644 (file)
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -48,8 +48,8 @@
 #include <asm/prom.h>
 #ifdef CONFIG_PPC64
 #include <asm/firmware.h>
-#include <asm/plpar_wrappers.h>
 #include <asm/time.h>
+#include <asm/machdep.h>
 #endif
 
 extern unsigned long _get_SP(void);
@@ -201,27 +201,15 @@ int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
 }
 #endif /* CONFIG_SPE */
 
-static void set_dabr_spr(unsigned long val)
-{
-       mtspr(SPRN_DABR, val);
-}
-
 int set_dabr(unsigned long dabr)
 {
-       int ret = 0;
-
 #ifdef CONFIG_PPC64
-       if (firmware_has_feature(FW_FEATURE_XDABR)) {
-               /* We want to catch accesses from kernel and userspace */
-               unsigned long flags = H_DABRX_KERNEL|H_DABRX_USER;
-               ret = plpar_set_xdabr(dabr, flags);
-       } else if (firmware_has_feature(FW_FEATURE_DABR)) {
-               ret = plpar_set_dabr(dabr);
-       } else
+       if (ppc_md.set_dabr)
+               return ppc_md.set_dabr(dabr);
 #endif
-               set_dabr_spr(dabr);
 
-       return ret;
+       mtspr(SPRN_DABR, dabr);
+       return 0;
 }
 
 #ifdef CONFIG_PPC64

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();
 

diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index 451b345cfc788b216bb8b7fe9f1b6c06accd7956..629ca964b974740d8aac09eafd1f03efbf148b4a 100644 (file)
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -80,6 +80,7 @@ struct machdep_calls {
        void            (*iommu_dev_setup)(struct pci_dev *dev);
        void            (*iommu_bus_setup)(struct pci_bus *bus);
        void            (*irq_bus_setup)(struct pci_bus *bus);
+       int             (*set_dabr)(unsigned long dabr);
 #endif
 
        int             (*probe)(int platform);