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From: Henry Wang <Henry.Wang@arm.com>
To: xen-devel@lists.xenproject.org
Cc: Wei Chen <wei.chen@arm.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Julien Grall <julien@xen.org>,
	Bertrand Marquis <bertrand.marquis@arm.com>,
	Michal Orzel <michal.orzel@amd.com>,
	Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>,
	Henry Wang <Henry.Wang@arm.com>
Subject: [PATCH v6 13/17] xen/arm: implement numa_node_to_arch_nid for device tree NUMA
Date: Mon, 20 Nov 2023 10:54:27 +0800	[thread overview]
Message-ID: <20231120025431.14845-14-Henry.Wang@arm.com> (raw)
In-Reply-To: <20231120025431.14845-1-Henry.Wang@arm.com>

From: Wei Chen <wei.chen@arm.com>

Device tree based NUMA doesn't have the proximity domain like
ACPI. So we can return node id directly as arch nid.

Signed-off-by: Wei Chen <wei.chen@arm.com>
Signed-off-by: Henry Wang <Henry.Wang@arm.com>
---
v5 -> v6:
- Rebase on top of staging without code changes.
v1 -> v5:
- Use numa_node_to_arch_nid instead of dummy node_to_pxm.
---
 xen/arch/arm/include/asm/numa.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/xen/arch/arm/include/asm/numa.h b/xen/arch/arm/include/asm/numa.h
index 55ac4665db..71b95a9a62 100644
--- a/xen/arch/arm/include/asm/numa.h
+++ b/xen/arch/arm/include/asm/numa.h
@@ -47,6 +47,15 @@ extern void numa_detect_cpu_node(unsigned int cpu);
 extern int numa_device_tree_init(const void *fdt);
 extern void numa_init(void);
 
+/*
+ * Device tree NUMA doesn't have architecural node id.
+ * So we can just return node id as arch nid.
+ */
+static inline unsigned int numa_node_to_arch_nid(nodeid_t n)
+{
+    return n;
+}
+
 #else
 
 /* Fake one node for now. See also node_online_map. */
-- 
2.25.1



  parent reply	other threads:[~2023-11-20  2:56 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-20  2:54 [PATCH v6 00/17] Device tree based NUMA support for Arm Henry Wang
2023-11-20  2:54 ` [PATCH v6 01/17] xen/arm: use NR_MEM_BANKS to override default NR_NODE_MEMBLKS Henry Wang
2023-11-20  2:54 ` [PATCH v6 02/17] xen/arm: implement helpers to get and update NUMA status Henry Wang
2024-01-03 15:10   ` Julien Grall
2023-11-20  2:54 ` [PATCH v6 03/17] xen/arm: implement node distance helpers for Arm Henry Wang
2023-11-20  2:54 ` [PATCH v6 04/17] xen/arm: use arch_get_ram_range to get memory ranges from bootinfo Henry Wang
2023-11-20  2:54 ` [PATCH v6 05/17] xen/arm: build NUMA cpu_to_node map in dt_smp_init_cpus Henry Wang
2023-11-20  2:54 ` [PATCH v6 06/17] xen/arm: Add boot and secondary CPU to NUMA system Henry Wang
2023-11-20  2:54 ` [PATCH v6 07/17] xen/arm: introduce a helper to parse device tree processor node Henry Wang
2023-11-20  2:54 ` [PATCH v6 08/17] xen/arm: introduce a helper to parse device tree memory node Henry Wang
2023-11-20  2:54 ` [PATCH v6 09/17] xen/arm: introduce a helper to parse device tree NUMA distance map Henry Wang
2023-11-20  2:54 ` [PATCH v6 10/17] xen/arm: unified entry to parse all NUMA data from device tree Henry Wang
2023-11-20  2:54 ` [PATCH v6 11/17] xen/arm: keep guest still be NUMA unware Henry Wang
2023-11-20  2:54 ` [PATCH v6 12/17] xen/arm: enable device tree based NUMA in system init Henry Wang
2023-11-20  2:54 ` Henry Wang [this message]
2023-11-20  2:54 ` [PATCH v6 14/17] xen/arm: use CONFIG_NUMA to gate node_online_map in smpboot Henry Wang
2023-11-20  2:54 ` [PATCH v6 15/17] xen/arm: Set correct per-cpu cpu_core_mask Henry Wang
2023-11-20  2:54 ` [PATCH v6 16/17] xen/arm: Provide Kconfig options for Arm to enable NUMA Henry Wang
2023-11-20  2:54 ` [PATCH v6 17/17] docs: update numa command line to support Arm Henry Wang
2023-11-20  8:55   ` Jan Beulich
2023-11-20  8:57     ` Henry Wang
2023-11-30  1:06 ` [PATCH v6 00/17] Device tree based NUMA support for Arm Stefano Stabellini
2023-11-30  2:11   ` Henry Wang
2024-01-03 15:14 ` Julien Grall

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