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authorLinus Torvalds <torvalds@linux-foundation.org>2021-11-02 22:22:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-02 22:22:13 -0700
commitdcd68326d29b62f3039e4f4d23d3e38f24d37360 (patch)
treeb02e363257d2362dc29b251ae2e23efaf598cb07 /arch/arm64/kernel/smp.c
parentMerge tag 'docs-5.16' of git://git.lwn.net/linux (diff)
parentdt-bindings: net: ti,bluetooth: Document default max-speed (diff)
downloadlinux-dev-dcd68326d29b62f3039e4f4d23d3e38f24d37360.tar.xz
linux-dev-dcd68326d29b62f3039e4f4d23d3e38f24d37360.zip
Merge tag 'devicetree-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring: - Convert /reserved-memory bindings to schemas - Convert a bunch of NFC bindings to schemas - Convert bindings to schema: Xilinx USB, Freescale DDR controller, Arm CCI-400, UBlox Neo-6M, 1-Wire GPIO, MSI controller, ASpeed LPC, OMAP and Inside-Secure HWRNG, register-bit-led, OV5640, Silead GSL1680, Elan ekth3000, Marvell bluetooth, TI wlcore, TI bluetooth, ESP ESP8089, tlm,trusted-foundations, Microchip cap11xx, Ralink SoCs and boards, and TI sysc - New binding schemas for: msi-ranges, Aspeed UART routing controller, palmbus, Xylon LogiCVC display controller, Mediatek's MT7621 SDRAM memory controller, and Apple M1 PCIe host - Run schema checks for %.dtb targets - Improve build time when using DT_SCHEMA_FILES - Improve error message when dtschema is not found - Various doc reference fixes in MAINTAINERS - Convert architectures to common CPU h/w ID parsing function of_get_cpu_hwid(). - Allow for empty NUMA node IDs which may be hotplugged - Cleanup of __fdt_scan_reserved_mem() - Constify device_node parameters - Update dtc to upstream v1.6.1-19-g0a3a9d3449c8. Adds new checks 'node_name_vs_property_name' and 'interrupt_map'. - Enable dtc 'unit_address_format' warning by default - Fix unittest EXPECT text for gpio hog errors * tag 'devicetree-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (97 commits) dt-bindings: net: ti,bluetooth: Document default max-speed dt-bindings: pci: rcar-pci-ep: Document r8a7795 dt-bindings: net: qcom,ipa: IPA does support up to two iommus of/fdt: Remove of_scan_flat_dt() usage for __fdt_scan_reserved_mem() of: unittest: document intentional interrupt-map provider build warning of: unittest: fix EXPECT text for gpio hog errors of/unittest: Disable new dtc node_name_vs_property_name and interrupt_map warnings scripts/dtc: Update to upstream version v1.6.1-19-g0a3a9d3449c8 dt-bindings: arm: firmware: tlm,trusted-foundations: Convert txt bindings to yaml dt-bindings: display: tilcd: Fix endpoint addressing in example dt-bindings: input: microchip,cap11xx: Convert txt bindings to yaml dt-bindings: ufs: exynos-ufs: add exynosautov9 compatible dt-bindings: ufs: exynos-ufs: add io-coherency property dt-bindings: mips: convert Ralink SoCs and boards to schema dt-bindings: display: xilinx: Fix example with psgtr dt-bindings: net: nfc: nxp,pn544: Convert txt bindings to yaml dt-bindings: Add a help message when dtschema tools are missing dt-bindings: bus: ti-sysc: Update to use yaml binding dt-bindings: sram: Allow numbers in sram region node name dt-bindings: display: Document the Xylon LogiCVC display controller ...
Diffstat (limited to 'arch/arm64/kernel/smp.c')
-rw-r--r--arch/arm64/kernel/smp.c31
1 files changed, 2 insertions, 29 deletions
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 44369b99a57e..27df5c1e6baa 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -466,33 +466,6 @@ void __init smp_prepare_boot_cpu(void)
kasan_init_hw_tags();
}
-static u64 __init of_get_cpu_mpidr(struct device_node *dn)
-{
- const __be32 *cell;
- u64 hwid;
-
- /*
- * A cpu node with missing "reg" property is
- * considered invalid to build a cpu_logical_map
- * entry.
- */
- cell = of_get_property(dn, "reg", NULL);
- if (!cell) {
- pr_err("%pOF: missing reg property\n", dn);
- return INVALID_HWID;
- }
-
- hwid = of_read_number(cell, of_n_addr_cells(dn));
- /*
- * Non affinity bits must be set to 0 in the DT
- */
- if (hwid & ~MPIDR_HWID_BITMASK) {
- pr_err("%pOF: invalid reg property\n", dn);
- return INVALID_HWID;
- }
- return hwid;
-}
-
/*
* Duplicate MPIDRs are a recipe for disaster. Scan all initialized
* entries and check for duplicates. If any is found just ignore the
@@ -656,9 +629,9 @@ static void __init of_parse_and_init_cpus(void)
struct device_node *dn;
for_each_of_cpu_node(dn) {
- u64 hwid = of_get_cpu_mpidr(dn);
+ u64 hwid = of_get_cpu_hwid(dn, 0);
- if (hwid == INVALID_HWID)
+ if (hwid & ~MPIDR_HWID_BITMASK)
goto next;
if (is_mpidr_duplicate(cpu_count, hwid)) {