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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 03:36:42 +07:00
87a1c441e1
when try to make hpet_enable use io_remap instead fixmap got ioremap: invalid physical address fed00000 ------------[ cut here ]------------ WARNING: at arch/x86/mm/ioremap.c:161 __ioremap_caller+0x8c/0x2f3() Modules linked in: Pid: 0, comm: swapper Not tainted 2.6.26-rc9-tip-01873-ga9827e7-dirty #358 Call Trace: [<ffffffff8026615e>] warn_on_slowpath+0x6c/0xa7 [<ffffffff802e2313>] ? __slab_alloc+0x20a/0x3fb [<ffffffff802d85c5>] ? mpol_new+0x88/0x17d [<ffffffff8022a4f4>] ? mcount_call+0x5/0x31 [<ffffffff8022a4f4>] ? mcount_call+0x5/0x31 [<ffffffff8024b0d2>] __ioremap_caller+0x8c/0x2f3 [<ffffffff80e86dbd>] ? hpet_enable+0x39/0x241 [<ffffffff8022a4f4>] ? mcount_call+0x5/0x31 [<ffffffff8024b466>] ioremap_nocache+0x2a/0x40 [<ffffffff80e86dbd>] hpet_enable+0x39/0x241 [<ffffffff80e7a1f6>] hpet_time_init+0x21/0x4e [<ffffffff80e730e9>] start_kernel+0x302/0x395 [<ffffffff80e722aa>] x86_64_start_reservations+0xb9/0xd4 [<ffffffff80e722fe>] ? x86_64_init_pda+0x39/0x4f [<ffffffff80e72400>] x86_64_start_kernel+0xec/0x107 ---[ end trace a7919e7f17c0a725 ]--- it seems for amd system that is set later... try to move setting early in early_identify_cpu. and remove same code for intel and centaur. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
#include <linux/init.h>
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#include <linux/smp.h>
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#include <asm/processor.h>
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#include <asm/ptrace.h>
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#include <asm/topology.h>
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#include <asm/numa_64.h>
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#include "cpu.h"
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static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
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{
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if ((c->x86 == 0xf && c->x86_model >= 0x03) ||
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(c->x86 == 0x6 && c->x86_model >= 0x0e))
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set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
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set_cpu_cap(c, X86_FEATURE_SYSENTER32);
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}
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/*
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* find out the number of processor cores on the die
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*/
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static int __cpuinit intel_num_cpu_cores(struct cpuinfo_x86 *c)
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{
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unsigned int eax, t;
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if (c->cpuid_level < 4)
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return 1;
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cpuid_count(4, 0, &eax, &t, &t, &t);
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if (eax & 0x1f)
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return ((eax >> 26) + 1);
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else
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return 1;
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}
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static void __cpuinit srat_detect_node(void)
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{
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#ifdef CONFIG_NUMA
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unsigned node;
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int cpu = smp_processor_id();
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int apicid = hard_smp_processor_id();
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/* Don't do the funky fallback heuristics the AMD version employs
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for now. */
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node = apicid_to_node[apicid];
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if (node == NUMA_NO_NODE || !node_online(node))
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node = first_node(node_online_map);
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numa_set_node(cpu, node);
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printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node);
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#endif
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}
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static void __cpuinit init_intel(struct cpuinfo_x86 *c)
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{
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init_intel_cacheinfo(c);
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if (c->cpuid_level > 9) {
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unsigned eax = cpuid_eax(10);
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/* Check for version and the number of counters */
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if ((eax & 0xff) && (((eax>>8) & 0xff) > 1))
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set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
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}
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if (cpu_has_ds) {
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unsigned int l1, l2;
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rdmsr(MSR_IA32_MISC_ENABLE, l1, l2);
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if (!(l1 & (1<<11)))
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set_cpu_cap(c, X86_FEATURE_BTS);
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if (!(l1 & (1<<12)))
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set_cpu_cap(c, X86_FEATURE_PEBS);
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}
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if (cpu_has_bts)
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ds_init_intel(c);
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if (c->x86 == 15)
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c->x86_cache_alignment = c->x86_clflush_size * 2;
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if (c->x86 == 6)
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set_cpu_cap(c, X86_FEATURE_REP_GOOD);
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set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
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c->x86_max_cores = intel_num_cpu_cores(c);
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srat_detect_node();
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}
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static struct cpu_dev intel_cpu_dev __cpuinitdata = {
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.c_vendor = "Intel",
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.c_ident = { "GenuineIntel" },
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.c_early_init = early_init_intel,
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.c_init = init_intel,
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};
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cpu_vendor_dev_register(X86_VENDOR_INTEL, &intel_cpu_dev);
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