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authorDavid Gibson <david@gibson.dropbear.id.au>2006-01-13 14:56:25 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-13 21:16:23 +1100
commite58c3495e6007af59382540bb21ee941e470d88d (patch)
tree24b559cb768bfa5cf4bdef69f2943b081a1f5afa /arch/powerpc/kernel/misc_64.S
parent7e78e5e502d4f220d24c6f738f2fdb078ad33607 (diff)
[PATCH] powerpc: Cleanup LOADADDR etc. asm macros
This patch consolidates the variety of macros used for loading 32 or 64-bit constants in assembler (LOADADDR, LOADBASE, SET_REG_TO_*). The idea is to make the set of macros consistent across 32 and 64 bit and to make it more obvious which is the appropriate one to use in a given situation. The new macros and their semantics are described in the comments in ppc_asm.h. In the process, we change several places that were unnecessarily using immediate loads on ppc64 to use the GOT/TOC. Likewise we cleanup a couple of places where we were clumsily subtracting PAGE_OFFSET with asm instructions to use assemble-time arithmetic or the toreal() macro instead. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/misc_64.S')
-rw-r--r--arch/powerpc/kernel/misc_64.S10
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index ae48a002f81..2778cce058e 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -39,7 +39,7 @@ _GLOBAL(reloc_offset)
mflr r0
bl 1f
1: mflr r3
- LOADADDR(r4,1b)
+ LOAD_REG_IMMEDIATE(r4,1b)
subf r3,r4,r3
mtlr r0
blr
@@ -51,7 +51,7 @@ _GLOBAL(add_reloc_offset)
mflr r0
bl 1f
1: mflr r5
- LOADADDR(r4,1b)
+ LOAD_REG_IMMEDIATE(r4,1b)
subf r5,r4,r5
add r3,r3,r5
mtlr r0
@@ -498,15 +498,15 @@ _GLOBAL(identify_cpu)
*/
_GLOBAL(do_cpu_ftr_fixups)
/* Get CPU 0 features */
- LOADADDR(r6,cur_cpu_spec)
+ LOAD_REG_IMMEDIATE(r6,cur_cpu_spec)
sub r6,r6,r3
ld r4,0(r6)
sub r4,r4,r3
ld r4,CPU_SPEC_FEATURES(r4)
/* Get the fixup table */
- LOADADDR(r6,__start___ftr_fixup)
+ LOAD_REG_IMMEDIATE(r6,__start___ftr_fixup)
sub r6,r6,r3
- LOADADDR(r7,__stop___ftr_fixup)
+ LOAD_REG_IMMEDIATE(r7,__stop___ftr_fixup)
sub r7,r7,r3
/* Do the fixup */
1: cmpld r6,r7