From: Jack Steiner Add a user request to specify the gru instruction slice parameter for user contexts. Signed-off-by: Jack Steiner --- 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/