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[PATCH] powerpc: remove do-nothing cpu setup routines 

Removed the do-nothing routines __setup_cpu_power3 and
__setup_cpu_power4 and replaced them with a null pointer check
in the caller.  Also removed the Cell processor specific
routine __setup_cpu_be which improperly accessed the
hypervisor page size configuration at SPR HID6.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Geoff Levand 2006-05-19 14:24:18 +10:00 committed by Paul Mackerras
parent 4240545661
commit b26f100d89
4 changed files with 4 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
arch/powerpc/kernel/cpu_setup_power4.S
View File

@ -73,23 +73,6 @@ _GLOBAL(__970_cpu_preinit)
isync
blr
_GLOBAL(__setup_cpu_power4)
blr
_GLOBAL(__setup_cpu_be)
/* Set large page sizes LP=0: 16MB, LP=1: 64KB */
addi r3, 0, 0
ori r3, r3, HID6_LB
sldi r3, r3, 32
nor r3, r3, r3
mfspr r4, SPRN_HID6
and r4, r4, r3
addi r3, 0, 0x02000
sldi r3, r3, 32
or r4, r4, r3
mtspr SPRN_HID6, r4
blr
_GLOBAL(__setup_cpu_ppc970)
mfspr r0,SPRN_HID0
li r11,5 /* clear DOZE and SLEEP */

19
arch/powerpc/kernel/cputable.c
View File

@ -30,11 +30,7 @@ EXPORT_SYMBOL(cur_cpu_spec);
* part of the cputable though. That has to be fixed for both ppc32
* and ppc64
*/
#ifdef CONFIG_PPC64
extern void __setup_cpu_power3(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_power4(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_be(unsigned long offset, struct cpu_spec* spec);
#else
#ifdef CONFIG_PPC32
extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_604(unsigned long offset, struct cpu_spec* spec);
extern void __setup_cpu_750(unsigned long offset, struct cpu_spec* spec);
@ -82,7 +78,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
.oprofile_cpu_type = "ppc64/power3",
.oprofile_type = PPC_OPROFILE_RS64,
.platform = "power3",
@ -96,7 +91,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
.oprofile_cpu_type = "ppc64/power3",
.oprofile_type = PPC_OPROFILE_RS64,
.platform = "power3",
@ -110,7 +104,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
.oprofile_cpu_type = "ppc64/rs64",
.oprofile_type = PPC_OPROFILE_RS64,
.platform = "rs64",
@ -124,7 +117,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
.oprofile_cpu_type = "ppc64/rs64",
.oprofile_type = PPC_OPROFILE_RS64,
.platform = "rs64",
@ -138,7 +130,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
.oprofile_cpu_type = "ppc64/rs64",
.oprofile_type = PPC_OPROFILE_RS64,
.platform = "rs64",
@ -152,7 +143,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
.oprofile_cpu_type = "ppc64/rs64",
.oprofile_type = PPC_OPROFILE_RS64,
.platform = "rs64",
@ -166,7 +156,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 8,
.cpu_setup = __setup_cpu_power4,
.oprofile_cpu_type = "ppc64/power4",
.oprofile_type = PPC_OPROFILE_POWER4,
.platform = "power4",
@ -180,7 +169,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 8,
.cpu_setup = __setup_cpu_power4,
.oprofile_cpu_type = "ppc64/power4",
.oprofile_type = PPC_OPROFILE_POWER4,
.platform = "power4",
@ -246,7 +234,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 6,
.cpu_setup = __setup_cpu_power4,
.oprofile_cpu_type = "ppc64/power5",
.oprofile_type = PPC_OPROFILE_POWER4,
.platform = "power5",
@ -260,7 +247,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 6,
.cpu_setup = __setup_cpu_power4,
.oprofile_cpu_type = "ppc64/power5+",
.oprofile_type = PPC_OPROFILE_POWER4,
.platform = "power5+",
@ -274,7 +260,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 6,
.cpu_setup = __setup_cpu_power4,
.oprofile_cpu_type = "ppc64/power6",
.oprofile_type = PPC_OPROFILE_POWER4,
.platform = "power6",
@ -289,7 +274,6 @@ struct cpu_spec cpu_specs[] = {
PPC_FEATURE_SMT,
.icache_bsize = 128,
.dcache_bsize = 128,
.cpu_setup = __setup_cpu_be,
.platform = "ppc-cell-be",
},
{ /* default match */
@ -301,7 +285,6 @@ struct cpu_spec cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.num_pmcs = 6,
.cpu_setup = __setup_cpu_power4,
.platform = "power4",
}
#endif /* CONFIG_PPC64 */

2
arch/powerpc/kernel/misc_32.S
View File

@ -216,7 +216,7 @@ _GLOBAL(call_setup_cpu)
lwz r4,0(r4)
add r4,r4,r3
lwz r5,CPU_SPEC_SETUP(r4)
cmpi 0,r5,0
cmpwi 0,r5,0
add r5,r5,r3
beqlr
mtctr r5

5
arch/powerpc/kernel/misc_64.S
View File

@ -482,7 +482,9 @@ _GLOBAL(identify_cpu)
sub r0,r3,r5
std r0,0(r4)
ld r4,CPU_SPEC_SETUP(r3)
cmpdi 0,r4,0
add r4,r4,r5
beqlr
ld r4,0(r4)
add r4,r4,r5
mtctr r4
@ -768,9 +770,6 @@ _GLOBAL(giveup_altivec)
#endif /* CONFIG_ALTIVEC */
_GLOBAL(__setup_cpu_power3)
blr
_GLOBAL(execve)
li r0,__NR_execve
sc