.. | .. |
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541 | 541 | |
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542 | 542 | switch (boot_cpu_data.x86) { |
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543 | 543 | case 0x06: |
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544 | | - if (boot_cpu_data.x86_model == 0x0f || boot_cpu_data.x86_model == 0x19) { |
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| 544 | + /* |
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| 545 | + * Support Zhaoxin CPU from ZXC series, exclude Nano series through FMS. |
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| 546 | + * Nano FMS: Family=6, Model=F, Stepping=[0-A][C-D] |
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| 547 | + * ZXC FMS: Family=6, Model=F, Stepping=E-F OR Family=6, Model=0x19, Stepping=0-3 |
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| 548 | + */ |
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| 549 | + if ((boot_cpu_data.x86_model == 0x0f && boot_cpu_data.x86_stepping >= 0x0e) || |
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| 550 | + boot_cpu_data.x86_model == 0x19) { |
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545 | 551 | |
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546 | 552 | x86_pmu.max_period = x86_pmu.cntval_mask >> 1; |
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547 | 553 | |
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