cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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guc_klvs_abi.h (3828B)

      1/* SPDX-License-Identifier: MIT */
      2/*
      3 * Copyright © 2021 Intel Corporation
      4 */
      5
      6#ifndef _ABI_GUC_KLVS_ABI_H
      7#define _ABI_GUC_KLVS_ABI_H
      8
      9#include <linux/types.h>
     10
     11/**
     12 * DOC: GuC KLV
     13 *
     14 *  +---+-------+--------------------------------------------------------------+
     15 *  |   | Bits  | Description                                                  |
     16 *  +===+=======+==============================================================+
     17 *  | 0 | 31:16 | **KEY** - KLV key identifier                                 |
     18 *  |   |       |   - `GuC Self Config KLVs`_                                  |
     19 *  |   |       |                                                              |
     20 *  |   +-------+--------------------------------------------------------------+
     21 *  |   |  15:0 | **LEN** - length of VALUE (in 32bit dwords)                  |
     22 *  +---+-------+--------------------------------------------------------------+
     23 *  | 1 |  31:0 | **VALUE** - actual value of the KLV (format depends on KEY)  |
     24 *  +---+-------+                                                              |
     25 *  |...|       |                                                              |
     26 *  +---+-------+                                                              |
     27 *  | n |  31:0 |                                                              |
     28 *  +---+-------+--------------------------------------------------------------+
     29 */
     30
     31#define GUC_KLV_LEN_MIN				1u
     32#define GUC_KLV_0_KEY				(0xffff << 16)
     33#define GUC_KLV_0_LEN				(0xffff << 0)
     34#define GUC_KLV_n_VALUE				(0xffffffff << 0)
     35
     36/**
     37 * DOC: GuC Self Config KLVs
     38 *
     39 * `GuC KLV`_ keys available for use with HOST2GUC_SELF_CFG_.
     40 *
     41 * _`GUC_KLV_SELF_CFG_H2G_CTB_ADDR` : 0x0902
     42 *      Refers to 64 bit Global Gfx address of H2G `CT Buffer`_.
     43 *      Should be above WOPCM address but below APIC base address for native mode.
     44 *
     45 * _`GUC_KLV_SELF_CFG_H2G_CTB_DESCRIPTOR_ADDR` : 0x0903
     46 *      Refers to 64 bit Global Gfx address of H2G `CTB Descriptor`_.
     47 *      Should be above WOPCM address but below APIC base address for native mode.
     48 *
     49 * _`GUC_KLV_SELF_CFG_H2G_CTB_SIZE` : 0x0904
     50 *      Refers to size of H2G `CT Buffer`_ in bytes.
     51 *      Should be a multiple of 4K.
     52 *
     53 * _`GUC_KLV_SELF_CFG_G2H_CTB_ADDR` : 0x0905
     54 *      Refers to 64 bit Global Gfx address of G2H `CT Buffer`_.
     55 *      Should be above WOPCM address but below APIC base address for native mode.
     56 *
     57 * _`GUC_KLV_SELF_CFG_G2H_CTB_DESCRIPTOR_ADDR` : 0x0906
     58 *      Refers to 64 bit Global Gfx address of G2H `CTB Descriptor`_.
     59 *      Should be above WOPCM address but below APIC base address for native mode.
     60 *
     61 * _`GUC_KLV_SELF_CFG_G2H_CTB_SIZE` : 0x0907
     62 *      Refers to size of G2H `CT Buffer`_ in bytes.
     63 *      Should be a multiple of 4K.
     64 */
     65
     66#define GUC_KLV_SELF_CFG_H2G_CTB_ADDR_KEY		0x0902
     67#define GUC_KLV_SELF_CFG_H2G_CTB_ADDR_LEN		2u
     68
     69#define GUC_KLV_SELF_CFG_H2G_CTB_DESCRIPTOR_ADDR_KEY	0x0903
     70#define GUC_KLV_SELF_CFG_H2G_CTB_DESCRIPTOR_ADDR_LEN	2u
     71
     72#define GUC_KLV_SELF_CFG_H2G_CTB_SIZE_KEY		0x0904
     73#define GUC_KLV_SELF_CFG_H2G_CTB_SIZE_LEN		1u
     74
     75#define GUC_KLV_SELF_CFG_G2H_CTB_ADDR_KEY		0x0905
     76#define GUC_KLV_SELF_CFG_G2H_CTB_ADDR_LEN		2u
     77
     78#define GUC_KLV_SELF_CFG_G2H_CTB_DESCRIPTOR_ADDR_KEY	0x0906
     79#define GUC_KLV_SELF_CFG_G2H_CTB_DESCRIPTOR_ADDR_LEN	2u
     80
     81#define GUC_KLV_SELF_CFG_G2H_CTB_SIZE_KEY		0x0907
     82#define GUC_KLV_SELF_CFG_G2H_CTB_SIZE_LEN		1u
     83
     84/*
     85 * Per context scheduling policy update keys.
     86 */
     87enum  {
     88	GUC_CONTEXT_POLICIES_KLV_ID_EXECUTION_QUANTUM			= 0x2001,
     89	GUC_CONTEXT_POLICIES_KLV_ID_PREEMPTION_TIMEOUT			= 0x2002,
     90	GUC_CONTEXT_POLICIES_KLV_ID_SCHEDULING_PRIORITY			= 0x2003,
     91	GUC_CONTEXT_POLICIES_KLV_ID_PREEMPT_TO_IDLE_ON_QUANTUM_EXPIRY	= 0x2004,
     92	GUC_CONTEXT_POLICIES_KLV_ID_SLPM_GT_FREQUENCY			= 0x2005,
     93
     94	GUC_CONTEXT_POLICIES_KLV_NUM_IDS = 5,
     95};
     96
     97#endif /* _ABI_GUC_KLVS_ABI_H */