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 8f85dab..9684321 100644
--- 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 @@
}
#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 c0a3d91..ee468f0 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -350,6 +350,16 @@
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 @@
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 451b345..629ca96 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -80,6 +80,7 @@
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);