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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 <[email protected]>
Signed-off-by: Paul Burton <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: James Hogan <[email protected]>
Cc: [email protected]
Cc: [email protected]
This commit is contained in:
Thomas Bogendoerfer authored and Paul Burton committed 2020-01-09 15:30:06 -08:00
1 parent 78691e4f17
commit d31f9e6489
5 files changed
+5 -21
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arch/mips/include/asm/mach-ip27/topology.h
+1
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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 */
};
arch/mips/sgi-ip27/ip27-common.h
-1
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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);
arch/mips/sgi-ip27/ip27-init.c
+2 -1
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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. */
arch/mips/sgi-ip27/ip27-smp.c
+2
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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,
arch/mips/sgi-ip27/ip27-timer.c
-19
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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)
{