Powerpc: separate CONFIG_RELOCATABLE from CONFIG_CRASHDUMP in boot code
authorSonny Rao <sonnyrao@linux.vnet.ibm.com>
Thu, 18 Nov 2010 00:35:07 +0000 (00:35 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Thu, 9 Dec 2010 04:35:31 +0000 (15:35 +1100)
Fix head_64.S so that we can build a relocatable kernel
that isn't necessarily a crash-dump kernel

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Sonny Rao <sonnyrao@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/kernel/head_64.S

index ce41b97..782f23d 100644 (file)
@@ -97,7 +97,7 @@ __secondary_hold_acknowledge:
        .llong hvReleaseData-KERNELBASE
 #endif /* CONFIG_PPC_ISERIES */
 
-#ifdef CONFIG_CRASH_DUMP
+#ifdef CONFIG_RELOCATABLE
        /* This flag is set to 1 by a loader if the kernel should run
         * at the loaded address instead of the linked address.  This
         * is used by kexec-tools to keep the the kdump kernel in the
@@ -385,12 +385,10 @@ _STATIC(__after_prom_start)
        /* process relocations for the final address of the kernel */
        lis     r25,PAGE_OFFSET@highest /* compute virtual base of kernel */
        sldi    r25,r25,32
-#ifdef CONFIG_CRASH_DUMP
        lwz     r7,__run_at_load-_stext(r26)
-       cmplwi  cr0,r7,1        /* kdump kernel ? - stay where we are */
+       cmplwi  cr0,r7,1        /* flagged to stay where we are ? */
        bne     1f
        add     r25,r25,r26
-#endif
 1:     mr      r3,r25
        bl      .relocate
 #endif