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powerpc: Fix bug caused by negation of 64-bit reloc_offset value

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Although both ppc32 and ppc64 have a reloc_offset function, the ppc64
one produced the opposite sign to the ppc32 one.  This standardizes
on the ppc32 sign and fixes the merged 64-bit code to account for that.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras 2005-10-10 22:41:25 +10:00
parent 4a2885630b
commit 5a408329ed
2 changed files with 11 additions and 11 deletions
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20
arch/powerpc/kernel/head_64.S
View File

@ -1385,7 +1385,7 @@ _STATIC(__boot_from_prom)
addi r2,r2,0x4000
/* Relocate the TOC from a virt addr to a real addr */
sub r2,r2,r3
add r2,r2,r3
/* Restore parameters */
mr r3,r31
@ -1424,7 +1424,7 @@ _STATIC(__after_prom_start)
li r3,0 /* target addr */
// XXX FIXME: Use phys returned by OF (r30)
sub r4,r27,r26 /* source addr */
add r4,r27,r26 /* source addr */
/* current address of _start */
/* i.e. where we are running */
/* the source addr */
@ -1444,7 +1444,7 @@ _STATIC(__after_prom_start)
bctr
4: LOADADDR(r5,klimit)
sub r5,r5,r26
add r5,r5,r26
ld r5,0(r5) /* get the value of klimit */
sub r5,r5,r27
bl .copy_and_flush /* copy the rest */
@ -1703,7 +1703,7 @@ _STATIC(start_here_multiplatform)
/* kernel but are still running in real mode. */
LOADADDR(r3,init_thread_union)
sub r3,r3,r26
add r3,r3,r26
/* set up a stack pointer (physical address) */
addi r1,r3,THREAD_SIZE
@ -1714,12 +1714,12 @@ _STATIC(start_here_multiplatform)
LOADADDR(r2,__toc_start)
addi r2,r2,0x4000
addi r2,r2,0x4000
sub r2,r2,r26
add r2,r2,r26
LOADADDR(r3,cpu_specs)
sub r3,r3,r26
add r3,r3,r26
LOADADDR(r4,cur_cpu_spec)
sub r4,r4,r26
add r4,r4,r26
mr r5,r26
bl .identify_cpu
@ -1735,13 +1735,13 @@ _STATIC(start_here_multiplatform)
* code
*/
LOADADDR(r27, boot_cpuid)
sub r27,r27,r26
add r27,r27,r26
lwz r27,0(r27)
LOADADDR(r24, paca) /* Get base vaddr of paca array */
mulli r13,r27,PACA_SIZE /* Calculate vaddr of right paca */
add r13,r13,r24 /* for this processor. */
sub r13,r13,r26 /* convert to physical addr */
add r13,r13,r26 /* convert to physical addr */
mtspr SPRN_SPRG3,r13 /* PPPBBB: Temp... -Peter */
/* Do very early kernel initializations, including initial hash table,
@ -1781,7 +1781,7 @@ _STATIC(start_here_multiplatform)
andi. r3,r3,PLATFORM_LPAR
bne 98f /* branch if result is !0 */
LOADADDR(r6,_SDR1) /* Only if NOT LPAR */
sub r6,r6,r26
add r6,r6,r26
ld r6,0(r6) /* get the value of _SDR1 */
mtspr SPRN_SDR1,r6 /* set the htab location */
98:

2
arch/powerpc/kernel/prom_init.c
View File

@ -2019,7 +2019,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
* On pSeries and BPA, copy the CPU hold code
*/
if (RELOC(of_platform) & (PLATFORM_PSERIES | PLATFORM_BPA))
copy_and_flush(0, KERNELBASE - offset, 0x100, 0);
copy_and_flush(0, KERNELBASE + offset, 0x100, 0);
#endif
/*