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powerpc/rtas: remove unused rtas_suspend_last_cpu() 

rtas_suspend_last_cpu() is now unused, remove it and
__rtas_suspend_last_cpu() which also becomes unused.

Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201207215200.1785968-24-nathanl@linux.ibm.com
This commit is contained in:
Nathan Lynch 2020-12-07 15:51:55 -06:00 committed by Michael Ellerman
parent 366fb13bf1
commit 1b2488176e
2 changed files with 0 additions and 44 deletions
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1
arch/powerpc/include/asm/rtas.h
View File

@ -256,7 +256,6 @@ extern bool rtas_indicator_present(int token, int *maxindex);
extern int rtas_set_indicator(int indicator, int index, int new_value);
extern int rtas_set_indicator_fast(int indicator, int index, int new_value);
extern void rtas_progress(char *s, unsigned short hex);
extern int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data);
int rtas_ibm_suspend_me(int *fw_status);
struct rtc_time;

43
arch/powerpc/kernel/rtas.c
View File

@ -830,49 +830,6 @@ void rtas_activate_firmware(void)
static int ibm_suspend_me_token = RTAS_UNKNOWN_SERVICE;
#ifdef CONFIG_PPC_PSERIES
static int __rtas_suspend_last_cpu(struct rtas_suspend_me_data *data, int wake_when_done)
{
u16 slb_size = mmu_slb_size;
int rc = H_MULTI_THREADS_ACTIVE;
int cpu;
slb_set_size(SLB_MIN_SIZE);
printk(KERN_DEBUG "calling ibm,suspend-me on cpu %i\n", smp_processor_id());
while (rc == H_MULTI_THREADS_ACTIVE && !atomic_read(&data->done) &&
!atomic_read(&data->error))
rc = rtas_call(data->token, 0, 1, NULL);
if (rc || atomic_read(&data->error)) {
printk(KERN_DEBUG "ibm,suspend-me returned %d\n", rc);
slb_set_size(slb_size);
}
if (atomic_read(&data->error))
rc = atomic_read(&data->error);
atomic_set(&data->error, rc);
pSeries_coalesce_init();
if (wake_when_done) {
atomic_set(&data->done, 1);
for_each_online_cpu(cpu)
plpar_hcall_norets(H_PROD, get_hard_smp_processor_id(cpu));
}
if (atomic_dec_return(&data->working) == 0)
complete(data->complete);
return rc;
}
int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data)
{
atomic_inc(&data->working);
return __rtas_suspend_last_cpu(data, 0);
}
/**
* rtas_call_reentrant() - Used for reentrant rtas calls
* @token: Token for desired reentrant RTAS call