Merge branch 'for-paulus' of git://kernel/home/michael/src/work/

5 files changed, 30 insertions, 42 deletions

diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index ba30e3177b0..45d81976987 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -1914,24 +1914,6 @@ _GLOBAL(hmt_start_secondary)
 	blr
 #endif
 
-#if defined(CONFIG_KEXEC) || defined(CONFIG_SMP)
-_GLOBAL(smp_release_cpus)
-	/* All secondary cpus are spinning on a common
-	 * spinloop, release them all now so they can start
-	 * to spin on their individual paca spinloops.
-	 * For non SMP kernels, the secondary cpus never
-	 * get out of the common spinloop.
-	 * XXX This does nothing useful on iSeries, secondaries are
-	 * already waiting on their paca.
-	 */
-	li	r3,1
-	LOADADDR(r5,__secondary_hold_spinloop)
-	std	r3,0(r5)
-	sync
-	blr
-#endif /* CONFIG_SMP */
-
-
 /*
  * We put a few things here that have to be page-aligned.
  * This stuff goes at the beginning of the bss, which is page-aligned.
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 8f85dabe4df..96843211cc5 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 @@ 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/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 2eccd0e159e..eec2da69550 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1285,7 +1285,7 @@ static int __init early_init_dt_scan_memory(unsigned long node,
 
 	endp = reg + (l / sizeof(cell_t));
 
-	DBG("memory scan node %s ..., reg size %ld, data: %x %x %x %x, ...\n",
+	DBG("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
 	    uname, l, reg[0], reg[1], reg[2], reg[3]);
 
 	while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index d4a3c5dd1a2..275d86ddd61 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -103,8 +103,6 @@ extern void htab_initialize(void);
 extern void early_init_devtree(void *flat_dt);
 extern void unflatten_device_tree(void);
 
-extern void smp_release_cpus(void);
-
 int have_of = 1;
 int boot_cpuid = 0;
 int boot_cpuid_phys = 0;
@@ -400,6 +398,27 @@ void __init early_setup(unsigned long dt_ptr)
 }
 
 
+#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
+void smp_release_cpus(void)
+{
+	extern unsigned long __secondary_hold_spinloop;
+
+	DBG(" -> smp_release_cpus()\n");
+
+	/* All secondary cpus are spinning on a common spinloop, release them
+	 * all now so they can start to spin on their individual paca
+	 * spinloops. For non SMP kernels, the secondary cpus never get out
+	 * of the common spinloop.
+	 * This is useless but harmless on iSeries, secondaries are already
+	 * waiting on their paca spinloops. */
+
+	__secondary_hold_spinloop = 1;
+	mb();
+
+	DBG(" <- smp_release_cpus()\n");
+}
+#endif /* CONFIG_SMP || CONFIG_KEXEC */
+
 /*
  * Initialize some remaining members of the ppc64_caches and systemcfg structures
  * (at least until we get rid of them completely). This is mostly some
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index d4dfcfbce27..9ceaa7a7bd0 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -1,11 +1,9 @@
 #include <linux/config.h>
-#ifdef CONFIG_PPC64
 #include <asm/page.h>
-#else
-#define PAGE_SIZE	4096
-#endif
 #include <asm-generic/vmlinux.lds.h>
 
+ENTRY(_stext)
+
 #ifdef CONFIG_PPC64
 OUTPUT_ARCH(powerpc:common64)
 jiffies = jiffies_64;
@@ -21,6 +19,7 @@ SECTIONS
     *(.exit.data)
   }
 
+  . = KERNELBASE;
 
   /* Read-only sections, merged into text segment: */
 #ifdef CONFIG_PPC32