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MIPS: SGI-IP27: Store cpu speed when scanning for CPUs and use it later

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Remember CPU speed while scanning for available CPUs to avoid
looking it up a second time when printing CPU speed.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
This commit is contained in:
Thomas Bogendoerfer 2020-01-09 13:33:50 +01:00 committed by Paul Burton
parent 78691e4f17
commit d31f9e6489
No known key found for this signature in database
GPG Key ID: 3EA79FACB57500DD
5 changed files with 5 additions and 21 deletions
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1
arch/mips/include/asm/mach-ip27/topology.h
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@ -7,6 +7,7 @@
struct cpuinfo_ip27 {
nasid_t p_nasid; /* my node ID in numa-as-id-space */
unsigned short p_speed; /* cpu speed in MHz */
unsigned char p_slice; /* Physical position on node board */
};

1
arch/mips/sgi-ip27/ip27-common.h
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@ -6,7 +6,6 @@
extern nasid_t master_nasid;
extern void cpu_node_probe(void);
extern void cpu_time_init(void);
extern void hub_rt_clock_event_init(void);
extern void hub_rtc_init(nasid_t nasid);
extern void install_cpu_nmi_handler(int slice);

3
arch/mips/sgi-ip27/ip27-init.c
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@ -83,7 +83,8 @@ void per_cpu_init(void)
per_hub_init(nasid);
cpu_time_init();
pr_info("CPU %d clock is %dMHz.\n", cpu, sn_cpu_info[cpu].p_speed);
install_ipi();
/* Install our NMI handler if symmon hasn't installed one. */

2
arch/mips/sgi-ip27/ip27-smp.c
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@ -47,6 +47,8 @@ static int node_scan_cpus(nasid_t nasid, int highest)
set_cpu_possible(cpuid, true);
cputonasid(cpus_found) = nasid;
cputoslice(cpus_found) = acpu->cpu_info.physid;
sn_cpu_info[cpus_found].p_speed =
acpu->cpu_speed;
cpus_found++;
}
acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu,

19
arch/mips/sgi-ip27/ip27-timer.c
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@ -150,25 +150,6 @@ void __init plat_time_init(void)
hub_rt_clock_event_init();
}
void cpu_time_init(void)
{
lboard_t *board;
klcpu_t *cpu;
int cpuid;
/* Don't use ARCS. ARCS is fragile. Klconfig is simple and sane. */
board = find_lboard(KL_CONFIG_INFO(get_nasid()), KLTYPE_IP27);
if (!board)
panic("Can't find board info for myself.");
cpuid = LOCAL_HUB_L(PI_CPU_NUM) ? IP27_CPU0_INDEX : IP27_CPU1_INDEX;
cpu = (klcpu_t *) KLCF_COMP(board, cpuid);
if (!cpu)
panic("No information about myself?");
printk("CPU %d clock is %dMHz.\n", smp_processor_id(), cpu->cpu_speed);
}
void hub_rtc_init(nasid_t nasid)
{