s390/boot: move sclp early buffer from fixed address in asm to C

[linux-2.6-microblaze.git] / arch / s390 / boot / head.S

diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S
index 51693cf..759f77c 100644 (file)
--- a/arch/s390/boot/head.S
+++ b/arch/s390/boot/head.S
@@ -25,10 +25,9 @@
 #include <linux/init.h>
 #include <linux/linkage.h>
 #include <asm/asm-offsets.h>
-#include <asm/thread_info.h>
 #include <asm/page.h>
 #include <asm/ptrace.h>
-#include "boot.h"
+#include <asm/sclp.h>
 
 #define ARCH_OFFSET    4
 
@@ -275,11 +274,11 @@ iplstart:
 .Lcpuid:.fill  8,1,0
 
 #
-# startup-code at 0x10000, running in absolute addressing mode
+# normal startup-code, running in absolute addressing mode
 # this is called either by the ipl loader or directly by PSW restart
 # or linload or SALIPL
 #
-       .org    0x10000
+       .org    STARTUP_NORMAL_OFFSET
 SYM_CODE_START(startup)
        j       startup_normal
        .org    EP_OFFSET
@@ -292,9 +291,9 @@ SYM_CODE_START(startup)
        .ascii  EP_STRING
        .byte   0x00,0x01
 #
-# kdump startup-code at 0x10010, running in 64 bit absolute addressing mode
+# kdump startup-code, running in 64 bit absolute addressing mode
 #
-       .org    0x10010
+       .org    STARTUP_KDUMP_OFFSET
        j       startup_kdump
 SYM_CODE_END(startup)
 SYM_CODE_START_LOCAL(startup_normal)
@@ -320,13 +319,12 @@ SYM_CODE_START_LOCAL(startup_normal)
        mvc     __LC_LAST_UPDATE_CLOCK(8),__LC_BOOT_CLOCK+1
        spt     6f-.LPG0(%r13)
        mvc     __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13)
-       l       %r15,.Lstack-.LPG0(%r13)
+       larl    %r15,_stack_end-STACK_FRAME_OVERHEAD
+       brasl   %r14,sclp_early_setup_buffer
        brasl   %r14,verify_facilities
        brasl   %r14,startup_kernel
 SYM_CODE_END(startup_normal)
 
-.Lstack:
-       .long   BOOT_STACK_OFFSET + BOOT_STACK_SIZE - STACK_FRAME_OVERHEAD
        .align  8
 6:     .long   0x7fffffff,0xffffffff
 .Lext_new_psw:
@@ -386,15 +384,13 @@ SYM_CODE_START_LOCAL(startup_pgm_check_handler)
        oi      __LC_RETURN_PSW+1,0x2   # set wait state bit
        larl    %r9,.Lold_psw_disabled_wait
        stg     %r9,__LC_PGM_NEW_PSW+8
-       l       %r15,.Ldump_info_stack-.Lold_psw_disabled_wait(%r9)
+       larl    %r15,_dump_info_stack_end-STACK_FRAME_OVERHEAD
        brasl   %r14,print_pgm_check_info
 .Lold_psw_disabled_wait:
        la      %r8,4095
        lmg     %r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r8)
        lpswe   __LC_RETURN_PSW         # disabled wait
 SYM_CODE_END(startup_pgm_check_handler)
-.Ldump_info_stack:
-       .long   0x5000 + PAGE_SIZE - STACK_FRAME_OVERHEAD
 
 #
 # params at 10400 (setup.h)
@@ -415,7 +411,4 @@ SYM_DATA_START(parmarea)
        .org    PARMAREA+__PARMAREA_SIZE
 SYM_DATA_END(parmarea)
 
-       .org    EARLY_SCCB_OFFSET
-       .fill   4096
-
        .org    HEAD_END