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14#include <linux/acpi.h>
15#include <linux/module.h>
16#include <linux/platform_device.h>
17
18#include <asm/cpu_device_id.h>
19#include <asm/intel-family.h>
20
21static void intel_pmc_core_release(struct device *dev)
22{
23 kfree(dev);
24}
25
26static struct platform_device *pmc_core_device;
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34
35static const struct x86_cpu_id intel_pmc_core_platform_ids[] = {
36 X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_L, &pmc_core_device),
37 X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE, &pmc_core_device),
38 X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L, &pmc_core_device),
39 X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE, &pmc_core_device),
40 X86_MATCH_INTEL_FAM6_MODEL(CANNONLAKE_L, &pmc_core_device),
41 X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &pmc_core_device),
42 X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &pmc_core_device),
43 X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &pmc_core_device),
44 {}
45};
46MODULE_DEVICE_TABLE(x86cpu, intel_pmc_core_platform_ids);
47
48static int __init pmc_core_platform_init(void)
49{
50 int retval;
51
52
53 if (acpi_dev_present("INT33A1", NULL, -1))
54 return -ENODEV;
55
56 if (!x86_match_cpu(intel_pmc_core_platform_ids))
57 return -ENODEV;
58
59 pmc_core_device = kzalloc(sizeof(*pmc_core_device), GFP_KERNEL);
60 if (!pmc_core_device)
61 return -ENOMEM;
62
63 pmc_core_device->name = "intel_pmc_core";
64 pmc_core_device->dev.release = intel_pmc_core_release;
65
66 retval = platform_device_register(pmc_core_device);
67 if (retval)
68 kfree(pmc_core_device);
69
70 return retval;
71}
72
73static void __exit pmc_core_platform_exit(void)
74{
75 platform_device_unregister(pmc_core_device);
76}
77
78module_init(pmc_core_platform_init);
79module_exit(pmc_core_platform_exit);
80MODULE_LICENSE("GPL v2");
81