lkml.org 
[lkml]   [2009]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[Patch 08/12] GRU - add user request to specify gru slice
From: Jack Steiner <steiner@sgi.com>

Add a user request to specify the gru instruction slice
parameter for user contexts.


Signed-off-by: Jack Steiner <steiner@sgi.com>

---
drivers/misc/sgi-gru/grufault.c | 4 ++++
drivers/misc/sgi-gru/grulib.h | 2 +-
drivers/misc/sgi-gru/grumain.c | 7 +++++++
drivers/misc/sgi-gru/grutables.h | 1 +
4 files changed, 13 insertions(+), 1 deletion(-)
Index: linux/drivers/misc/sgi-gru/grufault.c
===================================================================
--- linux.orig/drivers/misc/sgi-gru/grufault.c 2009-05-12 16:43:36.000000000 -0500
+++ linux/drivers/misc/sgi-gru/grufault.c 2009-05-12 16:48:53.000000000 -0500
@@ -773,6 +773,10 @@ int gru_set_context_option(unsigned long
/* Register the current task as the GSEG owner */
gts->ts_tgid_owner = current->tgid;
break;
+ case sco_cch_req_slice:
+ /* Set the CCH slice option */
+ gts->ts_cch_req_slice = req.val1 & 3;
+ break;
default:
ret = -EINVAL;
}
Index: linux/drivers/misc/sgi-gru/grulib.h
===================================================================
--- linux.orig/drivers/misc/sgi-gru/grulib.h 2009-05-12 16:43:36.000000000 -0500
+++ linux/drivers/misc/sgi-gru/grulib.h 2009-05-12 16:48:53.000000000 -0500
@@ -98,7 +98,7 @@ struct gru_unload_context_req {
/*
* Structure used to set context options
*/
-enum {sco_gseg_owner};
+enum {sco_gseg_owner, sco_cch_req_slice};
struct gru_set_context_option_req {
unsigned long gseg;
int op;
Index: linux/drivers/misc/sgi-gru/grumain.c
===================================================================
--- linux.orig/drivers/misc/sgi-gru/grumain.c 2009-05-12 16:43:19.000000000 -0500
+++ linux/drivers/misc/sgi-gru/grumain.c 2009-05-12 16:48:53.000000000 -0500
@@ -321,6 +321,7 @@ struct gru_thread_state *gru_alloc_gts(s
gts->ts_tsid = tsid;
gts->ts_ctxnum = NULLCTX;
gts->ts_tlb_int_select = -1;
+ gts->ts_cch_req_slice = -1;
gts->ts_sizeavail = GRU_SIZEAVAIL(PAGE_SHIFT);
if (vma) {
gts->ts_mm = current->mm;
@@ -566,6 +567,12 @@ void gru_load_context(struct gru_thread_
gts->ts_tlb_int_select = gru_cpu_fault_map_id();
cch->tlb_int_select = gts->ts_tlb_int_select;
}
+ if (gts->ts_cch_req_slice >= 0) {
+ cch->req_slice_set_enable = 1;
+ cch->req_slice = gts->ts_cch_req_slice;
+ } else {
+ cch->req_slice_set_enable =0;
+ }
cch->tfm_done_bit_enable = 0;
cch->dsr_allocation_map = gts->ts_dsr_map;
cch->cbr_allocation_map = gts->ts_cbr_map;
Index: linux/drivers/misc/sgi-gru/grutables.h
===================================================================
--- linux.orig/drivers/misc/sgi-gru/grutables.h 2009-05-12 16:43:36.000000000 -0500
+++ linux/drivers/misc/sgi-gru/grutables.h 2009-05-12 16:48:53.000000000 -0500
@@ -380,6 +380,7 @@ struct gru_thread_state {
required for contest */
unsigned char ts_cbr_au_count;/* Number of CBR resources
required for contest */
+ char ts_cch_req_slice;/* CCH packet slice */
char ts_blade; /* If >= 0, migrate context if
ref from diferent blade */
char ts_force_cch_reload;


\
 
 \ /
  Last update: 2009-06-08 19:25    [from the cache]
©2003-2011 Jasper Spaans