All of lore.kernel.org
 help / color / mirror / Atom feed
From: Wei Chen <wei.chen@arm.com>
To: <wei.chen@arm.com>, <xen-devel@lists.xenproject.org>,
	<sstabellini@kernel.org>, <julien@xen.org>, <jbeulich@suse.com>
Cc: <Bertrand.Marquis@arm.com>
Subject: [XEN RFC PATCH 13/40] xen/arm: introduce numa_set_node for Arm
Date: Wed, 11 Aug 2021 18:23:56 +0800	[thread overview]
Message-ID: <20210811102423.28908-14-wei.chen@arm.com> (raw)
In-Reply-To: <20210811102423.28908-1-wei.chen@arm.com>

This API is used to set one CPU to a NUMA node. If the system
configure NUMA off or system initialize NUMA failed, the
online NUMA node would set to only node#0. This will be done
in following patches. When NUMA turn off or init failed,
node_online_map will be cleared and set node#0 online. So we
use node_online_map to prevent to set a CPU to an offline node.

Signed-off-by: Wei Chen <wei.chen@arm.com>
---
 xen/arch/arm/Makefile      |  1 +
 xen/arch/arm/numa.c        | 31 +++++++++++++++++++++++++++++++
 xen/include/asm-arm/numa.h |  2 ++
 xen/include/asm-x86/numa.h |  1 -
 xen/include/xen/numa.h     |  1 +
 5 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 xen/arch/arm/numa.c

diff --git a/xen/arch/arm/Makefile b/xen/arch/arm/Makefile
index 3d3b97b5b4..6e3fb8033e 100644
--- a/xen/arch/arm/Makefile
+++ b/xen/arch/arm/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_LIVEPATCH) += livepatch.o
 obj-y += mem_access.o
 obj-y += mm.o
 obj-y += monitor.o
+obj-$(CONFIG_NUMA) += numa.o
 obj-y += p2m.o
 obj-y += percpu.o
 obj-y += platform.o
diff --git a/xen/arch/arm/numa.c b/xen/arch/arm/numa.c
new file mode 100644
index 0000000000..1e30c5bb13
--- /dev/null
+++ b/xen/arch/arm/numa.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Arm Architecture support layer for NUMA.
+ *
+ * Copyright (C) 2021 Arm Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#include <xen/init.h>
+#include <xen/nodemask.h>
+#include <xen/numa.h>
+
+void numa_set_node(int cpu, nodeid_t nid)
+{
+    if ( nid >= MAX_NUMNODES ||
+        !nodemask_test(nid, &node_online_map) )
+        nid = 0;
+
+    cpu_to_node[cpu] = nid;
+}
diff --git a/xen/include/asm-arm/numa.h b/xen/include/asm-arm/numa.h
index ab9c4a2448..1162c702df 100644
--- a/xen/include/asm-arm/numa.h
+++ b/xen/include/asm-arm/numa.h
@@ -27,6 +27,8 @@ extern mfn_t first_valid_mfn;
 #define node_start_pfn(nid) (mfn_x(first_valid_mfn))
 #define __node_distance(a, b) (20)
 
+#define numa_set_node(x, y) do { } while (0)
+
 #endif
 
 #endif /* __ARCH_ARM_NUMA_H */
diff --git a/xen/include/asm-x86/numa.h b/xen/include/asm-x86/numa.h
index f8e4e15586..69859b0a57 100644
--- a/xen/include/asm-x86/numa.h
+++ b/xen/include/asm-x86/numa.h
@@ -22,7 +22,6 @@ extern nodeid_t pxm_to_node(unsigned int pxm);
 #define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
 
 extern int srat_disabled(void);
-extern void numa_set_node(int cpu, nodeid_t node);
 extern nodeid_t setup_node(unsigned int pxm);
 extern void srat_detect_node(int cpu);
 
diff --git a/xen/include/xen/numa.h b/xen/include/xen/numa.h
index 258a5cb3db..3972aa6b93 100644
--- a/xen/include/xen/numa.h
+++ b/xen/include/xen/numa.h
@@ -70,6 +70,7 @@ extern int valid_numa_range(u64 start, u64 end, nodeid_t node);
 
 extern void numa_init_array(void);
 extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
+extern void numa_set_node(int cpu, nodeid_t node);
 extern bool numa_off;
 extern int numa_fake;
 
-- 
2.25.1



  parent reply	other threads:[~2021-08-11 10:32 UTC|newest]

Thread overview: 196+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-11 10:23 [XEN RFC PATCH 00/40] Add device tree based NUMA support to Arm64 Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 01/40] tools: Fix -Werror=maybe-uninitialized for xlu_pci_parse_bdf Wei Chen
2021-08-11 10:49   ` Jan Beulich
2021-08-13  6:28     ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 02/40] xen/arm: Print a 64-bit number in hex from early uart Wei Chen
2021-08-19 13:05   ` Julien Grall
2021-08-20  1:13     ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 03/40] xen/x86: Initialize memnodemapsize while faking NUMA node Wei Chen
2021-08-12 15:32   ` Jan Beulich
2021-08-13  7:26     ` Wei Chen
2021-08-13  8:29       ` Jan Beulich
2021-08-11 10:23 ` [XEN RFC PATCH 04/40] xen/arm: return default DMA bit width when platform is not set Wei Chen
2021-08-11 10:54   ` Jan Beulich
2021-08-13  6:54     ` Wei Chen
2021-08-13  6:56       ` Jan Beulich
2021-08-19 13:28   ` Julien Grall
2021-08-20  2:04     ` Wei Chen
2021-08-20  8:20       ` Julien Grall
2021-08-20  9:37         ` Wei Chen
2021-08-20 11:18           ` Julien Grall
2021-08-20 11:58             ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 05/40] xen/arm: Fix lowmem_bitsize when arch_get_dma_bitsize return 0 Wei Chen
2021-08-19 13:32   ` Julien Grall
2021-08-20  2:05     ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 06/40] xen: decouple NUMA from ACPI in Kconfig Wei Chen
2021-08-12 15:36   ` Jan Beulich
2021-08-13  7:27     ` Wei Chen
2021-08-12 16:54   ` Julien Grall
2021-08-13  7:28     ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 07/40] xen/arm: use !CONFIG_NUMA to keep fake NUMA API Wei Chen
2021-08-19 13:34   ` Julien Grall
2021-08-20  2:08     ` Wei Chen
2021-08-20  8:23       ` Julien Grall
2021-08-20 10:24         ` Wei Chen
2021-08-20 11:24           ` Julien Grall
2021-08-20 12:23             ` Wei Chen
2021-08-20 14:41               ` Julien Grall
2021-08-11 10:23 ` [XEN RFC PATCH 08/40] xen/x86: Move NUMA memory node map functions to common Wei Chen
2021-08-23 17:47   ` Julien Grall
2021-08-24  4:07     ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 09/40] xen/x86: Move numa_add_cpu_node " Wei Chen
2021-08-23 17:54   ` Julien Grall
2021-08-24  4:18     ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 10/40] xen/x86: Move NR_NODE_MEMBLKS macro " Wei Chen
2021-08-23 17:58   ` Julien Grall
2021-08-11 10:23 ` [XEN RFC PATCH 11/40] xen/x86: Move NUMA nodes and memory block ranges " Wei Chen
2021-08-24 17:40   ` Julien Grall
2021-08-25  0:57     ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 12/40] xen/x86: Move numa_initmem_init " Wei Chen
2021-08-25 10:21   ` Julien Grall
2021-08-25 11:15     ` Wei Chen
2021-08-25 13:26       ` Julien Grall
2021-08-11 10:23 ` Wei Chen [this message]
2021-08-25 10:36   ` [XEN RFC PATCH 13/40] xen/arm: introduce numa_set_node for Arm Julien Grall
2021-08-25 12:07     ` Wei Chen
2021-08-25 13:24       ` Julien Grall
2021-08-26  5:13         ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 14/40] xen/arm: set NUMA nodes max number to 64 by default Wei Chen
2021-08-25 13:28   ` Julien Grall
2021-08-25 13:36     ` Jan Beulich
2021-08-26  2:26       ` Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 15/40] xen/x86: move NUMA API from x86 header to common header Wei Chen
2021-08-11 10:23 ` [XEN RFC PATCH 16/40] xen/arm: Create a fake NUMA node to use common code Wei Chen
2021-08-26 23:10   ` Stefano Stabellini
2021-08-27  1:15     ` Wei Chen
2021-08-27  6:18     ` Jan Beulich
2021-08-27  9:32       ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 17/40] xen/arm: Introduce DEVICE_TREE_NUMA Kconfig for arm64 Wei Chen
2021-08-19 13:38   ` Julien Grall
2021-08-20  2:30     ` Wei Chen
2021-08-20  8:41       ` Julien Grall
2021-08-20 10:49         ` Wei Chen
2021-08-20 11:28           ` Julien Grall
2021-08-20 12:25             ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 18/40] xen/arm: Keep memory nodes in dtb for NUMA when boot from EFI Wei Chen
2021-08-19 17:35   ` Julien Grall
2021-08-20  2:18     ` Wei Chen
2021-08-26 23:24   ` Stefano Stabellini
2021-08-27  7:41     ` Julien Grall
2021-08-27 23:10       ` Stefano Stabellini
2021-08-27  9:23     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 19/40] xen: fdt: Introduce a helper to check fdt node type Wei Chen
2021-08-25 13:39   ` Julien Grall
2021-08-26  6:00     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 20/40] xen/arm: implement node distance helpers for Arm64 Wei Chen
2021-08-26 23:52   ` Stefano Stabellini
2021-08-27  9:30     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 21/40] xen/arm: introduce device_tree_numa as a switch for device tree NUMA Wei Chen
2021-08-19 17:45   ` Julien Grall
2021-08-20  2:21     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 22/40] xen/arm: introduce a helper to parse device tree processor node Wei Chen
2021-08-19 18:09   ` Julien Grall
2021-08-23  8:42     ` Wei Chen
2021-08-19 18:10   ` Julien Grall
2021-08-23  8:47     ` Wei Chen
2021-08-23 10:59       ` Julien Grall
2021-08-24  4:09         ` Wei Chen
2021-08-19 18:13   ` Julien Grall
2021-08-20  2:23     ` Wei Chen
2021-08-20  8:44       ` Julien Grall
2021-08-20 11:53         ` Wei Chen
2021-08-27  0:06   ` Stefano Stabellini
2021-08-27  9:31     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 23/40] xen/arm: introduce a helper to parse device tree memory node Wei Chen
2021-08-25 13:48   ` Julien Grall
2021-08-26  6:35     ` Wei Chen
2021-08-26  8:21       ` Julien Grall
2021-08-26 11:54         ` Wei Chen
2021-08-28  1:06   ` Stefano Stabellini
2021-08-28  3:56     ` Wei Chen
2021-08-28 10:33       ` Julien Grall
2021-08-28 13:58         ` Wei Chen
2021-09-08  7:34           ` Wei Chen
2021-09-08 22:31             ` Stefano Stabellini
2021-09-09  3:54               ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 24/40] xen/arm: introduce a helper to parse device tree NUMA distance map Wei Chen
2021-08-25 13:56   ` Julien Grall
2021-08-26  7:01     ` Wei Chen
2021-08-31  0:48   ` Stefano Stabellini
2021-08-31 10:17     ` Wei Chen
2021-08-31 21:36       ` Stefano Stabellini
2021-09-01 11:04         ` Wei Chen
2021-09-01 16:21           ` Stefano Stabellini
2021-09-02  2:30             ` Wei Chen
2021-09-02 15:19               ` Stefano Stabellini
2021-09-02  6:00             ` Jan Beulich
2021-09-02 14:14               ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 25/40] xen/arm: unified entry to parse all NUMA data from device tree Wei Chen
2021-08-31  0:54   ` Stefano Stabellini
2021-08-31 17:47     ` Julien Grall
2021-09-01 18:30       ` Stefano Stabellini
2021-09-02  2:48         ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 26/40] xen/arm: Add boot and secondary CPU to NUMA system Wei Chen
2021-08-25 16:58   ` Julien Grall
2021-08-26  7:24     ` Wei Chen
2021-08-26  8:49       ` Julien Grall
2021-08-26  9:39         ` Jan Beulich
2021-08-26 12:08           ` Wei Chen
2021-08-26 12:26             ` Jan Beulich
2021-08-11 10:24 ` [XEN RFC PATCH 27/40] xen/arm: build CPU NUMA node map while creating cpu_logical_map Wei Chen
2021-08-25 17:06   ` Julien Grall
2021-08-26  7:26     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 28/40] xen/x86: decouple nodes_cover_memory with E820 map Wei Chen
2021-08-31  1:07   ` Stefano Stabellini
2021-08-31 10:19     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 29/40] xen/arm: implement Arm arch helpers Arm to get memory map info Wei Chen
2021-08-25 17:09   ` Julien Grall
2021-08-26  7:27     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 30/40] xen: move NUMA memory and CPU parsed nodemasks to common Wei Chen
2021-08-25 17:16   ` Julien Grall
2021-08-26  7:29     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 31/40] xen/x86: move nodes_cover_memory " Wei Chen
2021-08-31  1:16   ` Stefano Stabellini
2021-08-31 13:43     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 32/40] xen/x86: make acpi_scan_nodes to be neutral Wei Chen
2021-08-27 14:08   ` Julien Grall
2021-08-28  2:11     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 33/40] xen: export bad_srat and srat_disabled to extern Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 34/40] xen: move numa_scan_nodes from x86 to common Wei Chen
2021-08-27 14:14   ` Julien Grall
2021-08-28  2:12     ` Wei Chen
2021-08-31  1:26   ` Stefano Stabellini
2021-08-31 13:43     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 35/40] xen: enable numa_scan_nodes for device tree based NUMA Wei Chen
2021-08-27 14:19   ` Julien Grall
2021-08-28  2:13     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 36/40] xen/arm: keep guest still be NUMA unware Wei Chen
2021-08-27 14:28   ` Julien Grall
2021-08-28  2:19     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 37/40] xen: introduce an arch helper to do NUMA init failed fallback Wei Chen
2021-08-27 14:30   ` Julien Grall
2021-08-28  3:09     ` Wei Chen
2021-08-28  3:45       ` Wei Chen
2021-08-30  9:52         ` Jan Beulich
2021-08-30 10:38           ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 38/40] xen/arm: enable device tree based NUMA in system init Wei Chen
2021-08-27 14:32   ` Julien Grall
2021-08-28  3:17     ` Wei Chen
2021-08-28 10:45       ` Julien Grall
2021-08-28 14:02         ` Wei Chen
2021-08-31  1:50   ` Stefano Stabellini
2021-08-31 13:43     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 39/40] xen/x86: move numa_setup to common to support NUMA switch in command line Wei Chen
2021-08-27 14:37   ` Julien Grall
2021-08-28  3:22     ` Wei Chen
2021-08-31  1:53   ` Stefano Stabellini
2021-08-31 13:44     ` Wei Chen
2021-08-11 10:24 ` [XEN RFC PATCH 40/40] xen/x86: move dump_numa info hotkey to common Wei Chen
2021-08-11 10:41 ` [XEN RFC PATCH 00/40] Add device tree based NUMA support to Arm64 Jan Beulich
2021-08-13  2:33   ` Wei Chen
2021-08-13  6:53     ` Jan Beulich
2021-08-19 13:42 ` Julien Grall
2021-08-19 14:05   ` Bertrand Marquis
2021-08-19 17:11     ` Julien Grall
2021-08-26  0:09 ` Stefano Stabellini
2021-08-26  7:31   ` Wei Chen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210811102423.28908-14-wei.chen@arm.com \
    --to=wei.chen@arm.com \
    --cc=Bertrand.Marquis@arm.com \
    --cc=jbeulich@suse.com \
    --cc=julien@xen.org \
    --cc=sstabellini@kernel.org \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.