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| author |   Paul Mackerras <paulus@samba.org> | 2005-10-22 15:55:58 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-10-22 15:55:58 +1000 |
| commit | ef1a12817aebc313049d226f96eee86e4bcc94a3 (patch) | |
| tree | 9c20807e70ef93a3e709e38464b627280bf67b36 | |
| parent | ppc64: Rearrange btext initialization for consistency with ppc32 (diff) | |
| download | linux-dev-ef1a12817aebc313049d226f96eee86e4bcc94a3.tar.xz linux-dev-ef1a12817aebc313049d226f96eee86e4bcc94a3.zip | |
ppc64: Simplify secondary CPU startup on powermacs
... for consistency with ppc32, and because this way is neater.
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/ppc64/kernel/head.S | 25 | ||||
| -rw-r--r-- | arch/ppc64/kernel/pmac_smp.c | 21 |
2 files changed, 15 insertions, 31 deletions
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S index 15c5f0c48043..f58af9c246cb 100644 --- a/arch/ppc64/kernel/head.S +++ b/arch/ppc64/kernel/head.S @@ -1556,20 +1556,17 @@ copy_to_here: .section ".text"; .align 2 ; - .globl pmac_secondary_start_1 -pmac_secondary_start_1: - li r24, 1 - b .pmac_secondary_start - - .globl pmac_secondary_start_2 -pmac_secondary_start_2: - li r24, 2 - b .pmac_secondary_start - - .globl pmac_secondary_start_3 -pmac_secondary_start_3: - li r24, 3 - b .pmac_secondary_start + .globl __secondary_start_pmac_0 +__secondary_start_pmac_0: + /* NB the entries for cpus 0, 1, 2 must each occupy 8 bytes. */ + li r24,0 + b 1f + li r24,1 + b 1f + li r24,2 + b 1f + li r24,3 +1: _GLOBAL(pmac_secondary_start) /* turn on 64-bit mode */ diff --git a/arch/ppc64/kernel/pmac_smp.c b/arch/ppc64/kernel/pmac_smp.c index 3a1683f5b07f..83c2f8dc1ec6 100644 --- a/arch/ppc64/kernel/pmac_smp.c +++ b/arch/ppc64/kernel/pmac_smp.c @@ -59,9 +59,7 @@ #define DBG(fmt...) #endif -extern void pmac_secondary_start_1(void); -extern void pmac_secondary_start_2(void); -extern void pmac_secondary_start_3(void); +extern void __secondary_start_pmac_0(void); extern struct smp_ops_t *smp_ops; @@ -236,7 +234,7 @@ static int __init smp_core99_probe(void) static void __init smp_core99_kick_cpu(int nr) { - int save_vector, j; + unsigned int save_vector, j; unsigned long new_vector; unsigned long flags; volatile unsigned int *vector @@ -253,20 +251,9 @@ static void __init smp_core99_kick_cpu(int nr) save_vector = *vector; /* Setup fake reset vector that does - * b .pmac_secondary_start - KERNELBASE + * b __secondary_start_pmac_0 + nr*8 - KERNELBASE */ - switch(nr) { - case 1: - new_vector = (unsigned long)pmac_secondary_start_1; - break; - case 2: - new_vector = (unsigned long)pmac_secondary_start_2; - break; - case 3: - default: - new_vector = (unsigned long)pmac_secondary_start_3; - break; - } + new_vector = (unsigned long) __secondary_start_pmac_0 + nr * 8; *vector = 0x48000002 + (new_vector - KERNELBASE); /* flush data cache and inval instruction cache */ |