diff options
| -rw-r--r-- | core/hmi.c | 49 |
1 files changed, 49 insertions, 0 deletions
@@ -32,6 +32,7 @@ #include <npu.h> #include <capp.h> #include <nvram.h> +#include <cpu.h> /* * HMER register layout: @@ -966,14 +967,54 @@ static int handle_thread_tfac_error(uint64_t tfmr, uint64_t *out_flags) return recover; } +static int64_t opal_handle_hmi(void); + +static void opal_handle_hmi_job(void *data __unused) +{ + opal_handle_hmi(); +} + +/* + * Queue hmi handling job If secondaries are still in OPAL + * This function is called by thread 0. + */ +static struct cpu_job **hmi_kick_secondaries(void) +{ + struct cpu_thread *ts = this_cpu(); + struct cpu_job **hmi_jobs = NULL; + int job_sz = sizeof(struct cpu_job *) * cpu_thread_count; + int i; + + for (i = 1; i < cpu_thread_count; i++) { + ts = next_cpu(ts); + + /* Is this thread still in OPAL ? */ + if (ts->state == cpu_state_active) { + if (!hmi_jobs) { + hmi_jobs = zalloc(job_sz); + assert(hmi_jobs); + } + + prlog(PR_DEBUG, "Sending hmi job to thread %d\n", i); + hmi_jobs[i] = cpu_queue_job(ts, "handle_hmi_job", + opal_handle_hmi_job, NULL); + } + } + return hmi_jobs; +} + static int handle_all_core_tfac_error(uint64_t tfmr, uint64_t *out_flags) { struct cpu_thread *t, *t0; int recover = -1; + struct cpu_job **hmi_jobs = NULL; t = this_cpu(); t0 = find_cpu_by_pir(cpu_get_thread0(t)); + if (t == t0 && t0->state == cpu_state_os) + hmi_jobs = hmi_kick_secondaries(); + /* Rendez vous all threads */ hmi_rendez_vous(1); @@ -1055,6 +1096,14 @@ error_out: if (t0->tb_resynced) *out_flags |= OPAL_HMI_FLAGS_TB_RESYNC; + if (t == t0 && hmi_jobs) { + int i; + for (i = 1; i < cpu_thread_count; i++) + if (hmi_jobs[i]) + cpu_wait_job(hmi_jobs[i], true); + free(hmi_jobs); + } + return recover; } |