diff options
| author | Nathan Lynch <nathanl@linux.ibm.com> | 2020-12-07 15:51:48 -0600 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-08 21:40:59 +1100 |
| commit | 5f6665e400569de479733677e77862542aebb6cc (patch) | |
| tree | 6e51f547932c90caf87340780af4155df01cf779 /arch | |
| parent | 4d756894ba75f1afe7945ccafe9afebff50484b6 (diff) | |
powerpc/rtas: remove rtas_ibm_suspend_me_unsafe()
rtas_ibm_suspend_me_unsafe() is now unused; remove it and
rtas_percpu_suspend_me() which becomes unused as a result.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201207215200.1785968-17-nathanl@linux.ibm.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/rtas.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/rtas.c | 67 |
2 files changed, 1 insertions, 67 deletions
diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h index 3b52d8574fcc..9a6107ffe378 100644 --- a/arch/powerpc/include/asm/rtas.h +++ b/arch/powerpc/include/asm/rtas.h @@ -258,7 +258,6 @@ 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_cpu(struct rtas_suspend_me_data *data); extern int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data); -int rtas_ibm_suspend_me_unsafe(u64 handle); int rtas_ibm_suspend_me(int *fw_status); struct rtc_time; diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index d4b048571728..7e6024f570da 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -925,66 +925,6 @@ int rtas_suspend_cpu(struct rtas_suspend_me_data *data) return __rtas_suspend_cpu(data, 0); } -static void rtas_percpu_suspend_me(void *info) -{ - __rtas_suspend_cpu((struct rtas_suspend_me_data *)info, 1); -} - -int rtas_ibm_suspend_me_unsafe(u64 handle) -{ - long state; - long rc; - unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; - struct rtas_suspend_me_data data; - DECLARE_COMPLETION_ONSTACK(done); - - if (!rtas_service_present("ibm,suspend-me")) - return -ENOSYS; - - /* Make sure the state is valid */ - rc = plpar_hcall(H_VASI_STATE, retbuf, handle); - - state = retbuf[0]; - - if (rc) { - printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned %ld\n",rc); - return rc; - } else if (state == H_VASI_ENABLED) { - return -EAGAIN; - } else if (state != H_VASI_SUSPENDING) { - printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned state %ld\n", - state); - return -EIO; - } - - atomic_set(&data.working, 0); - atomic_set(&data.done, 0); - atomic_set(&data.error, 0); - data.token = rtas_token("ibm,suspend-me"); - data.complete = &done; - - lock_device_hotplug(); - - cpu_hotplug_disable(); - - /* Call function on all CPUs. One of us will make the - * rtas call - */ - on_each_cpu(rtas_percpu_suspend_me, &data, 0); - - wait_for_completion(&done); - - if (atomic_read(&data.error) != 0) - printk(KERN_ERR "Error doing global join\n"); - - - cpu_hotplug_enable(); - - unlock_device_hotplug(); - - return atomic_read(&data.error); -} - /** * rtas_call_reentrant() - Used for reentrant rtas calls * @token: Token for desired reentrant RTAS call @@ -1035,12 +975,7 @@ int rtas_call_reentrant(int token, int nargs, int nret, int *outputs, ...) return ret; } -#else /* CONFIG_PPC_PSERIES */ -int rtas_ibm_suspend_me_unsafe(u64 handle) -{ - return -ENOSYS; -} -#endif +#endif /* CONFIG_PPC_PSERIES */ /** * Find a specific pseries error log in an RTAS extended event log. |