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path: root/drivers/misc/sgi-gru
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Diffstat (limited to 'drivers/misc/sgi-gru')
-rw-r--r--drivers/misc/sgi-gru/grufault.c10
-rw-r--r--drivers/misc/sgi-gru/grulib.h5
-rw-r--r--drivers/misc/sgi-gru/grumain.c2
-rw-r--r--drivers/misc/sgi-gru/grutables.h2
4 files changed, 17 insertions, 2 deletions
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
index a9f0cf48300..a69d119921f 100644
--- a/drivers/misc/sgi-gru/grufault.c
+++ b/drivers/misc/sgi-gru/grufault.c
@@ -763,6 +763,16 @@ int gru_set_context_option(unsigned long arg)
return -EINVAL;
switch (req.op) {
+ case sco_blade_chiplet:
+ /* Select blade/chiplet for GRU context */
+ if (req.val1 < -1 || req.val1 >= GRU_MAX_BLADES || !gru_base[req.val1] ||
+ req.val0 < -1 || req.val0 >= GRU_CHIPLETS_PER_HUB) {
+ ret = -EINVAL;
+ } else {
+ gts->ts_user_blade_id = req.val1;
+ gts->ts_user_chiplet_id = req.val0;
+ }
+ break;
case sco_gseg_owner:
/* Register the current task as the GSEG owner */
gts->ts_tgid_owner = current->tgid;
diff --git a/drivers/misc/sgi-gru/grulib.h b/drivers/misc/sgi-gru/grulib.h
index 889bc442a3e..e94ee2b8bd6 100644
--- a/drivers/misc/sgi-gru/grulib.h
+++ b/drivers/misc/sgi-gru/grulib.h
@@ -98,11 +98,12 @@ struct gru_unload_context_req {
/*
* Structure used to set context options
*/
-enum {sco_gseg_owner, sco_cch_req_slice};
+enum {sco_gseg_owner, sco_cch_req_slice, sco_blade_chiplet};
struct gru_set_context_option_req {
unsigned long gseg;
int op;
- unsigned long val1;
+ int val0;
+ long val1;
};
/*
diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
index 3bc643dad60..f449c2dbc1e 100644
--- a/drivers/misc/sgi-gru/grumain.c
+++ b/drivers/misc/sgi-gru/grumain.c
@@ -328,6 +328,8 @@ struct gru_thread_state *gru_alloc_gts(struct vm_area_struct *vma,
gts->ts_cbr_au_count = cbr_au_count;
gts->ts_dsr_au_count = dsr_au_count;
gts->ts_user_options = options;
+ gts->ts_user_blade_id = -1;
+ gts->ts_user_chiplet_id = -1;
gts->ts_tsid = tsid;
gts->ts_ctxnum = NULLCTX;
gts->ts_tlb_int_select = -1;
diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index f7b553a56ed..27131fb2253 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -369,6 +369,8 @@ struct gru_thread_state {
long ts_user_options;/* misc user option flags */
pid_t ts_tgid_owner; /* task that is using the
context - for migration */
+ short ts_user_blade_id;/* user selected blade */
+ char ts_user_chiplet_id;/* user selected chiplet */
unsigned short ts_sizeavail; /* Pagesizes in use */
int ts_tsid; /* thread that owns the
structure */