diff options
| author | Jack Steiner <steiner@sgi.com> | 2009-12-15 16:48:04 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:20:14 -0800 |
| commit | 518e5cd4aae476042bdee511e0e00c8670c0df42 (patch) | |
| tree | ca65637bbc1c1e75b08bcb9082d62e28040b54bd /drivers/misc | |
| parent | 9178052fda2f934535f0b9940b987c3ac4c51bd7 (diff) | |
| download | linux-518e5cd4aae476042bdee511e0e00c8670c0df42.tar.gz linux-518e5cd4aae476042bdee511e0e00c8670c0df42.tar.xz | |
gru: allow users to specify gru chiplet 1
Add table & user request infrastructure that is needed to allow users to
specify the blade and chiplet for allocation of GRU contexts. Use of this
information is in a subsequent patch.
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')
| -rw-r--r-- | drivers/misc/sgi-gru/grufault.c | 10 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grulib.h | 5 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grumain.c | 2 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grutables.h | 2 |
4 files changed, 17 insertions, 2 deletions
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index a9f0cf483005..a69d119921ff 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 889bc442a3e8..e94ee2b8bd64 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 3bc643dad606..f449c2dbc1e3 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 f7b553a56ed0..27131fb2253f 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 */ |