[PATCH v4 2/5] ARM: BCM: Clean up SMP support for Broadcom Kona
Florian Fainelli
f.fainelli at gmail.com
Tue Dec 1 17:54:44 PST 2015
On 01/12/15 08:24, Kapil Hali wrote:
> These changes cleans up SMP implementaion for Broadcom's
> Kona SoC which are required for handling SMP for iProc
> family of SoCs at a single place for BCM NSP and BCM Kona.
FWIW, I gave this patch a try on a Capri board, and this still brings-up
the two CPUs successfully:
MMC read: dev # 0, block # 114688, count 32768 ...
100% (32768/32768 blocks)
32768 blocks read: OK
## Starting application at 0x80008000 ...
Uncompressing Linux... done, booting the kernel.
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.4.0-rc1-00005-ge49c96ed573e
(fainelli at fainelli-desktop) (gcc version 4.
8.5 (Broadcom stbgcc-4.8-1.4) ) #605 SMP Tue Dec 1 17:53:02 PST 2015
[ 0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7),
cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing
instruction cache
[ 0.000000] Machine model: BCM28155 AP board
[ 0.000000] cma: Reserved 16 MiB at 0xbf000000
[ 0.000000] Memory policy: Data cache writealloc
[ 0.000000] PERCPU: Embedded 12 pages/cpu @ef7d3000 s18752 r8192
d22208 u49152
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 260608
[ 0.000000] Kernel command line: console=ttyS0,115200n8
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288
bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144
bytes)
[ 0.000000] Memory: 1009696K/1048576K available (6384K kernel code,
279K rwdata, 2268K rodata, 4152
K init, 218K bss, 22496K reserved, 16384K cma-reserved, 245760K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
[ 0.000000] vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc087b694 (8654 kB)
[ 0.000000] .init : 0xc087c000 - 0xc0c8a000 (4152 kB)
[ 0.000000] .data : 0xc0c8a000 - 0xc0ccfdf8 ( 280 kB)
[ 0.000000] .bss : 0xc0cd2000 - 0xc0d08bac ( 219 kB)
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32,
nr_cpu_ids=2
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] __ccu_wait_bit: slave_ccu/0x0484 bit 18 was never set
[ 0.000000] __peri_clk_init: error initializing gate for bsc3
[ 0.000000] Broadcom slave_ccu initialization had errors
[ 0.000000] sched_clock: 32 bits at 1kHz, resolution 1000000ns, wraps
every 2147483647500000ns
[ 0.000000] Console: colour dummy device 80x30
[ 0.006000] Calibrating delay loop... 2383.87 BogoMIPS (lpj=1191936)
[ 0.006000] pid_max: default: 32768 minimum: 301
[ 0.006000] Mount-cache hash table entries: 2048 (order: 1, 8192
bytes)
[ 0.006000] Mountpoint-cache hash table entries: 2048 (order: 1, 8192
bytes)
[ 0.006000] CPU: Testing write buffer coherency: ok
[ 0.006000] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[ 0.006000] Setting up static identity map for 0x800082c0 -
0x80008318
[ 0.015000] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[ 0.015000] Brought up 2 CPUs
[ 0.015000] SMP: Total of 2 processors activated (7200.76 BogoMIPS).
[ 0.015000] CPU: All CPU(s) started in SVC mode.
[ 0.015000] devtmpfs: initialized
[ 0.016000] VFP support v0.3: implementor 41 architecture 3 part 30
variant 9 rev 4
[ 0.016000] clocksource: jiffies: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 19112604462
75000 ns
[ 0.016000] pinctrl core: initialized pinctrl subsystem
[ 0.017000] NET: Registered protocol family 16
[ 0.017000] DMA: preallocated 256 KiB pool for atomic coherent
allocations
[ 0.023000] cpuidle: using governor ladder
[ 0.025000] cpuidle: using governor menu
[ 0.026000] Kona Secure API initialized
[ 0.026000] BCM-L2C-310 cache controller enabled, 16 ways, 512 kB
[ 0.026000] BCM-L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x1e050000
[ 0.026000] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1
watchpoint registers.
[ 0.026000] hw-breakpoint: maximum watchpoint size is 4 bytes.
[ 0.033000] SCSI subsystem initialized
[ 0.033000] usbcore: registered new interface driver usbfs
[ 0.033000] usbcore: registered new interface driver hub
[ 0.033000] usbcore: registered new device driver usb
[ 0.033000] Linux video capture interface: v2.00
[ 0.033000] pps_core: LinuxPPS API ver. 1 registered
[ 0.033000] pps_core: Software ver. 5.3.6 - Copyright 2005-2007
Rodolfo Giometti <giometti at linux.it
>
[ 0.033000] PTP clock support registered
[ 0.034000] Advanced Linux Sound Architecture Driver Initialized.
[ 0.037000] NET: Registered protocol family 2
[ 0.037000] TCP established hash table entries: 8192 (order: 3, 32768
bytes)
[ 0.038000] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.038000] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.038000] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.038000] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.038000] NET: Registered protocol family 1
[ 0.038000] RPC: Registered named UNIX socket transport module.
[ 0.038000] RPC: Registered udp transport module.
[ 0.038000] RPC: Registered tcp transport module.
[ 0.038000] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.114000] futex hash table entries: 512 (order: 3, 32768 bytes)
[ 0.114000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.114000] NFS: Registering the id_resolver key type
[ 0.114000] Key type id_resolver registered
[ 0.114000] Key type id_legacy registered
[ 0.114000] nfs4filelayout_init: NFSv4 File Layout Driver
Registering...
[ 0.114000] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[ 0.114000] fuse init (API version 7.23)
[ 0.115000] bounce: pool size: 64 pages
[ 0.115000] Block layer SCSI generic (bsg) driver version 0.4 loaded
(major 252)
[ 0.115000] io scheduler noop registered
[ 0.115000] io scheduler deadline registered
[ 0.115000] io scheduler cfq registered (default)
[ 0.115000] bcm-kona-gpio 35003000.gpio: Setting up Kona GPIO
[ 0.138000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 0.139000] console [ttyS0] disabled
[ 0.139000] 3e000000.uart: ttyS0 at MMIO 0x3e000000 (irq = 17,
base_baud = 808290) is a 16550A
[ 0.415000] console [ttyS0] enabled
[ 0.421000] brd: module loaded
[ 0.423000] loop: module loaded
[ 0.424000] libphy: Fixed MDIO Bus: probed
[ 0.425000] cnic: QLogic cnicDriver v2.5.22 (July 20, 2015)
[ 0.426000] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 0.427000] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 0.428000] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB
Ethernet driver
[ 0.429000] usbcore: registered new interface driver pegasus
[ 0.430000] usbcore: registered new interface driver asix
[ 0.431000] usbcore: registered new interface driver ax88179_178a
[ 0.432000] usbcore: registered new interface driver cdc_ether
[ 0.433000] usbcore: registered new interface driver cdc_ncm
[ 0.434000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI)
Driver
[ 0.435000] ehci-pci: EHCI PCI platform driver
[ 0.436000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.437000] ohci-pci: OHCI PCI platform driver
[ 0.438000] usbcore: registered new interface driver usb-storage
[ 0.439000] mousedev: PS/2 mouse device common for all mice
[ 0.440000] i2c /dev entries driver
[ 0.441000] bcm-kona-i2c 3e016000.i2c: device registered successfully
[ 0.442000] bcm-kona-i2c 3e017000.i2c: device registered successfully
[ 0.443000] bcm-kona-i2c 3e018000.i2c: device registered successfully
[ 0.444000] bcm-kona-i2c 3500d000.i2c: device registered successfully
[ 0.445000] gspca_main: v2.14.0 registered
[ 0.446000] sdhci: Secure Digital Host Controller Interface driver
[ 0.447000] sdhci: Copyright(c) Pierre Ossman
[ 0.448000] sdhci-pltfm: SDHCI platform and OF driver helper
[ 0.452000] sdhci-kona 3f190000.sdio: No vmmc regulator found
[ 0.453000] sdhci-kona 3f190000.sdio: No vqmmc regulator found
[ 0.483000] mmc0: SDHCI controller on 3f190000.sdio [3f190000.sdio]
using ADMA
[ 0.485000] sdhci-kona 3f1b0000.sdio: Got CD GPIO
[ 0.489000] sdhci-kona 3f1b0000.sdio: No vmmc regulator found
[ 0.490000] sdhci-kona 3f1b0000.sdio: No vqmmc regulator found
[ 0.519000] mmc1: SDHCI controller on 3f1b0000.sdio [3f1b0000.sdio]
using ADMA
[ 0.520000] usbcore: registered new interface driver usbhid
[ 0.521000] usbhid: USB HID core driver
[ 0.522000] NET: Registered protocol family 17
[ 0.523000] bridge: automatic filtering via arp/ip/ip6tables has been
deprecated. Update your scrip
ts to load br_netfilter if you need this.
[ 0.524000] 8021q: 802.1Q VLAN Support v1.8
[ 0.525000] Key type dns_resolver registered
[ 0.526000] Registering SWP/SWPB emulation handler
[ 0.527000] ALSA device list:
[ 0.528000] No soundcards found.
[ 0.529000] ttyS0 - failed to request DMA
[ 0.531000] Freeing unused kernel memory: 4152K (c087c000 - c0c8a000)
starting pid 1114, tty '': '/etc/init.d/rcS'
Mounting virtual filesystems
[ 0.548000] mmc0: MAN_BKOPS_EN bit is not set
[ 0.554000] mmc0: new high speed MMC card at address 0001
[ 0.557000] mmcblk0: mmc0:0001 016G4A 14.8 GiB
[ 0.560000] mmcblk0boot0: mmc0:0001 016G4A partition 1 2.00 MiB
* WARNING: THIS STB CONTAINS GPLv3 SOFTWARE[ 0.564000] mmcblk0boot1:
mmc0:0001 016G4A partition 2 2
.00 MiB
* GPLv3 programs must be removed in order to enable security.
* See: http://www.gnu.org/licenses/gpl-faq.html#Tivoization
[ 0.570000] mmcblk0rpmb: mmc0:0001 016G4A partition 3 256 KiB
Configuring lo interface
[ 0.577000] Alternate GPT is invalid, using primary GPT.
[ 0.580000] mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14
p15
Starting network services
starting pid 1211, tty '': '/bin/cttyhack /bin/sh -l'
#
# ps awwux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 22.0 0.1 1928 1244 ? Ss 00:00 0:00 init
root 2 0.0 0.0 0 0 ? S 00:00 0:00
[kthreadd]
root 3 0.0 0.0 0 0 ? S 00:00 0:00
[ksoftirqd/0]
root 4 0.0 0.0 0 0 ? S 00:00 0:00
[kworker/0:0]
root 5 0.0 0.0 0 0 ? S< 00:00 0:00
[kworker/0:0H]
root 6 0.0 0.0 0 0 ? S 00:00 0:00
[kworker/u4:0]
root 7 0.0 0.0 0 0 ? S 00:00 0:00
[rcu_sched]
root 8 0.0 0.0 0 0 ? S 00:00 0:00
[rcu_bh]
root 9 0.0 0.0 0 0 ? S 00:00 0:00
[migration/0]
root 10 0.0 0.0 0 0 ? S 00:00 0:00
[watchdog/0]
root 11 0.0 0.0 0 0 ? S 00:00 0:00
[watchdog/1]
root 12 0.0 0.0 0 0 ? S 00:00 0:00
[migration/1]
root 13 0.0 0.0 0 0 ? S 00:00 0:00
[ksoftirqd/1]
root 14 0.0 0.0 0 0 ? S 00:00 0:00
[kworker/1:0]
root 15 0.0 0.0 0 0 ? S< 00:00 0:00
[kworker/1:0H]
root 16 0.0 0.0 0 0 ? S 00:00 0:00
[kdevtmpfs]
root 17 2.0 0.0 0 0 ? S 00:00 0:00
[kworker/u4:1]
root 18 0.0 0.0 0 0 ? S< 00:00 0:00 [perf]
root 24 0.0 0.0 0 0 ? S 00:00 0:00
[kworker/u4:2]
root 248 0.0 0.0 0 0 ? S 00:00 0:00
[khungtaskd]
root 249 0.0 0.0 0 0 ? S< 00:00 0:00
[writeback]
root 250 0.0 0.0 0 0 ? S< 00:00 0:00
[crypto]
root 252 0.0 0.0 0 0 ? S< 00:00 0:00
[bioset]
root 253 0.0 0.0 0 0 ? S 00:00 0:00
[kworker/0:1]
root 254 0.0 0.0 0 0 ? S< 00:00 0:00
[kblockd]
root 256 0.0 0.0 0 0 ? S< 00:00 0:00
[ata_sff]
root 376 0.0 0.0 0 0 ? S< 00:00 0:00
[rpciod]
root 389 0.0 0.0 0 0 ? S 00:00 0:00 [kswapd0]
root 390 0.0 0.0 0 0 ? S 00:00 0:00
[fsnotify_mark]
root 391 0.0 0.0 0 0 ? S< 00:00 0:00 [nfsiod]
root 943 0.0 0.0 0 0 ? S 00:00 0:00
[kworker/1:1]
root 947 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 950 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 951 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 952 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 953 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 954 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 955 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 956 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 957 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 958 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 959 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 960 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 961 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 962 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 963 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 964 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 998 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1001 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1004 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1007 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1010 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1013 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1016 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1019 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1051 0.0 0.0 0 0 ? S< 00:00 0:00 [cnic_wq]
root 1074 0.0 0.0 0 0 ? S< 00:00 0:00 [kpsmoused]
root 1092 0.0 0.0 0 0 ? S 00:00 0:00
[irq/24-mmc0]
root 1094 0.0 0.0 0 0 ? S 00:00 0:00
[irq/25-mmc1]
root 1096 0.0 0.0 0 0 ? S 00:00 0:00
[irq/31-3f1b0000]
root 1111 0.0 0.0 0 0 ? S< 00:00 0:00 [deferwq]
root 1127 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1130 0.0 0.0 0 0 ? S 00:00 0:00 [mmcqd/0]
root 1131 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1133 0.0 0.0 0 0 ? S 00:00 0:00
[mmcqd/0boot0]
root 1134 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1137 0.0 0.0 0 0 ? S 00:00 0:00
[mmcqd/0boot1]
root 1138 0.0 0.0 0 0 ? S< 00:00 0:00 [bioset]
root 1140 0.0 0.0 0 0 ? S 00:00 0:00
[mmcqd/0rpmb]
bin 1174 0.0 0.1 1452 1072 ? Ss 00:00 0:00 portmap
root 1210 0.0 0.0 1928 56 ? Ss 00:00 0:00 telnetd
root 1211 0.0 0.1 1968 1632 ttyS0 Ss 00:00 0:00 /bin/sh -l
root 1219 0.0 0.1 1948 1124 ttyS0 R+ 00:00 0:00 ps awwux
c# cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 0 (v7l)
BogoMIPS : 2383.87
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc09
CPU revision : 0
processor : 1
model name : ARMv7 Processor rev 0 (v7l)
BogoMIPS : 4816.89
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpd32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc09
CPU revision : 0
Hardware : BCM281xx Broadcom Application Processor
Revision : 0000
Serial : 0000000000000000
#
--
Florian
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