From: Thomas Bogendoerfer <tbogendoerfer@suse.de>
To: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>,
James Hogan <jhogan@kernel.org>,
linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 14/14] MIPS: SGI-IP27: No need for slice_map
Date: Thu, 9 Jan 2020 13:33:51 +0100 [thread overview]
Message-ID: <20200109123353.5656-15-tbogendoerfer@suse.de> (raw)
In-Reply-To: <20200109123353.5656-1-tbogendoerfer@suse.de>
per_cpu_init is called exactly once for every CPU. So there is no
need for protection via slice_map.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
arch/mips/include/asm/mach-ip27/mmzone.h | 1 -
arch/mips/sgi-ip27/ip27-init.c | 5 -----
2 files changed, 6 deletions(-)
diff --git a/arch/mips/include/asm/mach-ip27/mmzone.h b/arch/mips/include/asm/mach-ip27/mmzone.h
index 534a50f79147..08c36e50a860 100644
--- a/arch/mips/include/asm/mach-ip27/mmzone.h
+++ b/arch/mips/include/asm/mach-ip27/mmzone.h
@@ -13,7 +13,6 @@ struct hub_data {
kern_vars_t kern_vars;
DECLARE_BITMAP(h_bigwin_used, HUB_NUM_BIG_WINDOW);
cpumask_t h_cpus;
- unsigned long slice_map;
};
struct node_data {
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 84a78bd1386a..32bcb8d1dd88 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -72,12 +72,7 @@ static void per_hub_init(nasid_t nasid)
void per_cpu_init(void)
{
int cpu = smp_processor_id();
- int slice = LOCAL_HUB_L(PI_CPU_NUM);
nasid_t nasid = get_nasid();
- struct hub_data *hub = hub_data(nasid);
-
- if (test_and_set_bit(slice, &hub->slice_map))
- return;
clear_c0_status(ST0_IM);
--
2.24.1
next prev parent reply other threads:[~2020-01-09 12:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 12:33 [PATCH 00/14] Cleanup SGI-IP27 and prepare for SGI-IP35 support Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 01/14] MIPS: SGI-IP27: use nodemask instead of cpumask Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 02/14] MIPS: SGI-IP27: use cpu physid already present while scanning for CPUs Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 03/14] MIPS: SGI-IP27: use asm/sn/agent.h for including HUB related stuff Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 04/14] MIPS: SGI-IP27: get rid of asm/sn/sn0/ip27.h Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 05/14] MIPS: SGI-IP27: move IP27 specific macro to IP27 specific header file Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 06/14] MIPS: SGI-IP27: Move get_nasid() to a IP27 specific file Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 07/14] MIPS: SGI-IP27: Split kldir.h into generic SN and IP27 parts Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 08/14] MIPS: SGI-IP27: Use union instead of typedef Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 09/14] MIPS: SGI-IP27: Use structs for decoding error status registers Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 10/14] MIPS: SGI-IP27: Use specific get_region_shift Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 11/14] MIPS: SGI-IP27: Move all shared IP27 declarations to ip27-common.h Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 12/14] MIPS: SGI-IP27: Only reserve interrupts used in Linux Thomas Bogendoerfer
2020-01-09 12:33 ` [PATCH 13/14] MIPS: SGI-IP27: Store cpu speed when scanning for CPUs and use it later Thomas Bogendoerfer
2020-01-09 12:33 ` Thomas Bogendoerfer [this message]
2020-01-10 19:25 ` [PATCH 00/14] Cleanup SGI-IP27 and prepare for SGI-IP35 support Paul Burton
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