diff options
Diffstat (limited to 'drivers/misc/sgi-gru/grufault.c')
| -rw-r--r-- | drivers/misc/sgi-gru/grufault.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index 15507d31e62b..ab118558552e 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -360,6 +360,13 @@ static int gru_try_dropin(struct gru_thread_state *gts, if (ret == -2) goto failupm; + if (!(gts->ts_sizeavail & GRU_SIZEAVAIL(pageshift))) { + gts->ts_sizeavail |= GRU_SIZEAVAIL(pageshift); + if (atomic || !gru_update_cch(gts, 0)) { + gts->ts_force_cch_reload = 1; + goto failupm; + } + } gru_cb_set_istatus_active(cb); tfh_write_restart(tfh, gpa, GAA_RAM, vaddr, asid, write, GRU_PAGESIZE(pageshift)); @@ -535,6 +542,14 @@ int gru_handle_user_call_os(unsigned long cb) gts->ts_force_unload = 1; } + /* + * CCH may contain stale data if ts_force_cch_reload is set. + */ + if (gts->ts_gru && gts->ts_force_cch_reload) { + gru_update_cch(gts, 0); + gts->ts_force_cch_reload = 0; + } + ret = -EAGAIN; cbrnum = thread_cbr_number(gts, ucbnum); if (gts->ts_force_unload) { |