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[PATCH] ppc32: make cur_cpu_spec a single pointer instead of an array

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Changed ppc32 so that cur_cpu_spec is just a single pointer for all CPUs.
Additionally, made call_setup_cpu check to see if the cpu_setup pointer
is NULL or not before calling the function.  This lets remove the dummy
cpu_setup calls that just return.

Signed-off-by: Kumar Gala <[email protected]>
Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Kumar Gala 2005-09-27 15:13:12 -05:00 • committed by Paul Mackerras
commit 400d221274
15 changed files with 43 additions and 88 deletions
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16
include/asm-powerpc/cputable.h
View file

@ -25,11 +25,7 @@
struct cpu_spec;
struct op_powerpc_model;
#ifdef __powerpc64__
typedef void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec);
#else /* __powerpc64__ */
typedef void (*cpu_setup_t)(unsigned long offset, int cpu_nr, struct cpu_spec* spec);
#endif /* __powerpc64__ */
struct cpu_spec {
/* CPU is matched via (PVR & pvr_mask) == pvr_value */
@ -51,23 +47,15 @@ struct cpu_spec {
* BHT, SPD, etc... from head.S before branching to identify_machine
*/
cpu_setup_t cpu_setup;
#ifdef __powerpc64__
/* Used by oprofile userspace to select the right counters */
char *oprofile_cpu_type;
/* Processor specific oprofile operations */
struct op_powerpc_model *oprofile_model;
#endif /* __powerpc64__ */
};
extern struct cpu_spec cpu_specs[];
#ifdef __powerpc64__
extern struct cpu_spec *cur_cpu_spec;
#else /* __powerpc64__ */
extern struct cpu_spec *cur_cpu_spec[];
#endif /* __powerpc64__ */
#endif /* __ASSEMBLY__ */
@ -398,11 +386,7 @@ static inline int cpu_has_feature(unsigned long feature)
{
return (CPU_FTRS_ALWAYS & feature) ||
(CPU_FTRS_POSSIBLE
#ifndef __powerpc64__
& cur_cpu_spec[0]->cpu_features
#else
& cur_cpu_spec->cpu_features
#endif
& feature);
}

4
include/asm-powerpc/elf.h
View file

@ -212,15 +212,13 @@ extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *);
/* ELF_HWCAP yields a mask that user programs can use to figure out what
instruction set this cpu supports. This could be done in userspace,
but it's not easy, and we've already done it here. */
#ifdef __powerpc64__
# define ELF_HWCAP (cur_cpu_spec->cpu_user_features)
#ifdef __powerpc64__
# define ELF_PLAT_INIT(_r, load_addr) do { \
memset(_r->gpr, 0, sizeof(_r->gpr)); \
_r->ctr = _r->link = _r->xer = _r->ccr = 0; \
_r->gpr[2] = load_addr; \
} while (0)
#else
# define ELF_HWCAP (cur_cpu_spec[0]->cpu_user_features)
#endif /* __powerpc64__ */
/* This yields a string that ld.so will use to load implementation