diff options
| author |   Jack Steiner <steiner@sgi.com> | 2009-06-17 16:28:33 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-18 13:04:04 -0700 |
| commit | b1b19fcfa417cf62447413d6e8b9b6598adf00b9 (patch) | |
| tree | 843b78d76879848fa8907ce24662ecc568012219 /drivers/misc/sgi-gru | |
| parent | gru: generic infrastructure for context options (diff) | |
| download | linux-dev-b1b19fcfa417cf62447413d6e8b9b6598adf00b9.tar.xz linux-dev-b1b19fcfa417cf62447413d6e8b9b6598adf00b9.zip | |
gru: add user request to specify gru slice
Add a user request to specify the gru instruction slice parameter for user
contexts.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/sgi-gru')
| -rw-r--r-- | drivers/misc/sgi-gru/grufault.c | 4 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grulib.h | 2 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grumain.c | 7 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grutables.h | 1 |
4 files changed, 13 insertions, 1 deletions
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index b894b7ed9c35..1ad360cd3183 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -769,6 +769,10 @@ int gru_set_context_option(unsigned long arg) /* 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; } diff --git a/drivers/misc/sgi-gru/grulib.h b/drivers/misc/sgi-gru/grulib.h index 8615b904a7c7..a484a9fee3ce 100644 --- a/drivers/misc/sgi-gru/grulib.h +++ b/drivers/misc/sgi-gru/grulib.h @@ -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; diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c index 347004e4f591..0c20be007b20 100644 --- a/drivers/misc/sgi-gru/grumain.c +++ b/drivers/misc/sgi-gru/grumain.c @@ -321,6 +321,7 @@ struct gru_thread_state *gru_alloc_gts(struct vm_area_struct *vma, 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_state *gts) 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; diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h index ee2f4121db21..34ab3d453919 100644 --- a/drivers/misc/sgi-gru/grutables.h +++ b/drivers/misc/sgi-gru/grutables.h @@ -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; |