osfmk/arm64/tunables/tunables_h9.s

   1 /*
   2  * Copyright (c) 2019 Apple Inc. All rights reserved.
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   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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   8  * Version 2.0 (the 'License'). You may not use this file except in
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  13  * terms of an Apple operating system software license agreement.
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  15  * Please obtain a copy of the License at
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  27  */
  28 .macro APPLY_TUNABLES
  29         /***** Tunables that apply to all cores, all revisions *****/
  30
  31         // IC prefetch configuration
  32         // <rdar://problem/23019425>
  33         HID_INSERT_BITS ARM64_REG_HID0, ARM64_REG_HID0_ICPrefDepth_bmsk, ARM64_REG_HID0_ICPrefDepth_VALUE, $1
  34         HID_SET_BITS ARM64_REG_HID0, ARM64_REG_HID0_ICPrefLimitOneBrn, $1
  35
  36         // disable reporting of TLB-multi-hit-error
  37         // <rdar://problem/22163216>
  38         HID_CLEAR_BITS ARM64_REG_LSU_ERR_CTL, ARM64_REG_LSU_ERR_CTL_L1DTlbMultiHitEN, $1
  39
  40         // disable crypto fusion across decode groups
  41         // <rdar://problem/27306424>
  42         HID_SET_BITS ARM64_REG_HID1, ARM64_REG_HID1_disAESFuseAcrossGrp, $1
  43
  44         /***** Tunables that apply to all P cores, all revisions *****/
  45         /* N/A */
  46
  47         /***** Tunables that apply to all E cores, all revisions *****/
  48         /* N/A */
  49
  50         /***** Tunables that apply to specific cores, all revisions *****/
  51         EXEC_COREEQ_REVALL MIDR_MYST, $0, $1
  52         // Clear DisDcZvaCmdOnly
  53         // Per Myst A0/B0 tunables document
  54         // <rdar://problem/27627428> Myst: Confirm ACC Per-CPU Tunables
  55         HID_CLEAR_BITS ARM64_REG_HID3, ARM64_REG_HID3_DisDcZvaCmdOnly, $1
  56         HID_CLEAR_BITS ARM64_REG_EHID3, ARM64_REG_HID3_DisDcZvaCmdOnly, $1
  57         EXEC_END
  58
  59         /***** Tunables that apply to specific cores and revisions *****/
  60         /* N/A */
  61 .endmacro