From: steiner@sgi.com
To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: [Patch 08/25] GRU - flush gru tlb when driver is loaded
Date: Thu, 26 Aug 2010 08:19:45 -0500 [thread overview]
Message-ID: <20100826132124.248097278@sgi.com> (raw)
In-Reply-To: 20100826131937.108920216@sgi.com
[-- Attachment #1: uv_gru_init_flush_tlb --]
[-- Type: text/plain, Size: 886 bytes --]
From: Jack Steiner <steiner@sgi.com>
Flush the GRU TLB when the GRU driver is loaded. There may be stale
entries in the TLB if a previous GRU was unloaded since the system
was last reset.
Signed-off-by: Jack Steiner <steiner@sgi.com>
---
drivers/misc/sgi-gru/grutlbpurge.c | 2 ++
1 file changed, 2 insertions(+)
Index: linux/drivers/misc/sgi-gru/grutlbpurge.c
===================================================================
--- linux.orig/drivers/misc/sgi-gru/grutlbpurge.c 2010-06-09 08:11:42.087537647 -0500
+++ linux/drivers/misc/sgi-gru/grutlbpurge.c 2010-06-09 08:11:42.891554573 -0500
@@ -380,4 +380,6 @@ void gru_tgh_flush_init(struct gru_state
/* first starting TGH index to use for remote purges */
gru->gs_tgh_first_remote = (cpus + (1 << shift) - 1) >> shift;
+ /* flush the GRU TLB in case there are stale entries present */
+ gru_flush_all_tlb(gru);
}
next prev parent reply other threads:[~2010-08-26 13:24 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-26 13:19 [Patch 00/25] GRU - GRU Updates - Production Driver steiner
2010-08-26 13:19 ` [Patch 01/25] GRU - delete obsolete gru instruction opcodes steiner
2010-08-26 13:19 ` [Patch 02/25] GRU - skip gru tlb purging of gru contexts:w steiner
2010-08-26 13:19 ` [Patch 03/25] GRU - update gru tlb miss statistics steiner
2010-08-26 13:19 ` [Patch 04/25] GRU - mmap gru contexts using nonlinear steiner
2010-08-26 13:19 ` [Patch 05/25] GRU - cbe cache flush steiner
2010-08-26 13:19 ` [Patch 06/25] GRU - change context stealing steiner
2010-08-26 13:19 ` [Patch 07/25] GRU - add context lock flag to gru status steiner
2010-08-26 13:19 ` steiner [this message]
2010-08-26 13:19 ` [Patch 09/25] GRU - add software reserved bits to cbr definition steiner
2010-08-26 13:19 ` [Patch 10/25] GRU - eliminate gru contention on mmap_sem steiner
2010-08-26 13:19 ` [Patch 11/25] GRU - interrupt fix for processors without core 0 steiner
2010-08-26 13:19 ` [Patch 12/25] GRU - add gru hub number to context status steiner
2010-08-26 13:19 ` [Patch 13/25] GRU - delete obsolete debug code steiner
2010-08-26 13:19 ` [Patch 14/25] GRU - add polling for tlb misses steiner
2010-08-26 13:19 ` [Patch 15/25] GRU - reorder interrupt processing steiner
2010-08-26 13:19 ` [Patch 16/25] GRU - add refcnt to vdata structure steiner
2010-08-26 13:19 ` [Patch 17/25] GRU - no panic on gru malfunction steiner
2010-08-26 13:19 ` [Patch 18/25] GRU - contexts must contain cbrs steiner
2010-08-26 13:19 ` [Patch 19/25] GRU - update debug messages and comments steiner
2010-08-26 13:19 ` [Patch 20/25] GRU - add gsh information to gru dumps steiner
2010-08-26 13:19 ` [Patch 21/25] GRU - delete unused gru statistics structure steiner
2010-08-26 13:19 ` [Patch 22/25] GRU - gru api cleanup steiner
2010-08-26 13:20 ` [Patch 23/25] GRU - update driverr version steiner
2010-08-26 13:20 ` [Patch 24/25] GRU - rename gru pagesize defines steiner
2010-08-26 13:20 ` [Patch 25/25] GRU - update cbrstate definitions steiner
-- strict thread matches above, loose matches on Subject: below --
2010-07-19 21:32 [Patch 00/25] GRU - GRU Updates steiner
2010-07-19 21:32 ` [Patch 08/25] GRU - flush gru tlb when driver is loaded steiner
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