root/include/uapi/linux/kfd_sysfs.h
/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */
/*
 * Copyright 2021 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef KFD_SYSFS_H_INCLUDED
#define KFD_SYSFS_H_INCLUDED

/* Capability bits in node properties */
#define HSA_CAP_HOT_PLUGGABLE                   0x00000001
#define HSA_CAP_ATS_PRESENT                     0x00000002
#define HSA_CAP_SHARED_WITH_GRAPHICS            0x00000004
#define HSA_CAP_QUEUE_SIZE_POW2                 0x00000008
#define HSA_CAP_QUEUE_SIZE_32BIT                0x00000010
#define HSA_CAP_QUEUE_IDLE_EVENT                0x00000020
#define HSA_CAP_VA_LIMIT                        0x00000040
#define HSA_CAP_WATCH_POINTS_SUPPORTED          0x00000080
#define HSA_CAP_WATCH_POINTS_TOTALBITS_MASK     0x00000f00
#define HSA_CAP_WATCH_POINTS_TOTALBITS_SHIFT    8
#define HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK    0x00003000
#define HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT   12

#define HSA_CAP_DOORBELL_TYPE_PRE_1_0           0x0
#define HSA_CAP_DOORBELL_TYPE_1_0               0x1
#define HSA_CAP_DOORBELL_TYPE_2_0               0x2
#define HSA_CAP_AQL_QUEUE_DOUBLE_MAP            0x00004000

#define HSA_CAP_TRAP_DEBUG_SUPPORT              0x00008000
#define HSA_CAP_TRAP_DEBUG_WAVE_LAUNCH_TRAP_OVERRIDE_SUPPORTED  0x00010000
#define HSA_CAP_TRAP_DEBUG_WAVE_LAUNCH_MODE_SUPPORTED           0x00020000
#define HSA_CAP_TRAP_DEBUG_PRECISE_MEMORY_OPERATIONS_SUPPORTED  0x00040000

/* Old buggy user mode depends on this being 0 */
#define HSA_CAP_RESERVED_WAS_SRAM_EDCSUPPORTED  0x00080000

#define HSA_CAP_MEM_EDCSUPPORTED                                0x00100000
#define HSA_CAP_RASEVENTNOTIFY                                  0x00200000
#define HSA_CAP_ASIC_REVISION_MASK                              0x03c00000
#define HSA_CAP_ASIC_REVISION_SHIFT                             22
#define HSA_CAP_SRAM_EDCSUPPORTED                               0x04000000
#define HSA_CAP_SVMAPI_SUPPORTED                                0x08000000
#define HSA_CAP_FLAGS_COHERENTHOSTACCESS                        0x10000000
#define HSA_CAP_TRAP_DEBUG_FIRMWARE_SUPPORTED                   0x20000000
#define HSA_CAP_TRAP_DEBUG_PRECISE_ALU_OPERATIONS_SUPPORTED     0x40000000
#define HSA_CAP_PER_QUEUE_RESET_SUPPORTED                       0x80000000
#define HSA_CAP_RESERVED                                        0x000f8000

#define HSA_CAP2_PER_SDMA_QUEUE_RESET_SUPPORTED                 0x00000001
#define HSA_CAP2_TRAP_DEBUG_LDS_OUT_OF_ADDR_RANGE_SUPPORTED     0x00000002
#define HSA_CAP2_RESERVED                                       0xfffffffc

/* debug_prop bits in node properties */
#define HSA_DBG_WATCH_ADDR_MASK_LO_BIT_MASK     0x0000000f
#define HSA_DBG_WATCH_ADDR_MASK_LO_BIT_SHIFT    0
#define HSA_DBG_WATCH_ADDR_MASK_HI_BIT_MASK     0x000003f0
#define HSA_DBG_WATCH_ADDR_MASK_HI_BIT_SHIFT    4
#define HSA_DBG_DISPATCH_INFO_ALWAYS_VALID      0x00000400
#define HSA_DBG_WATCHPOINTS_EXCLUSIVE           0x00000800
#define HSA_DBG_RESERVED                0xfffffffffffff000ull

/* Heap types in memory properties */
#define HSA_MEM_HEAP_TYPE_SYSTEM        0
#define HSA_MEM_HEAP_TYPE_FB_PUBLIC     1
#define HSA_MEM_HEAP_TYPE_FB_PRIVATE    2
#define HSA_MEM_HEAP_TYPE_GPU_GDS       3
#define HSA_MEM_HEAP_TYPE_GPU_LDS       4
#define HSA_MEM_HEAP_TYPE_GPU_SCRATCH   5

/* Flag bits in memory properties */
#define HSA_MEM_FLAGS_HOT_PLUGGABLE             0x00000001
#define HSA_MEM_FLAGS_NON_VOLATILE              0x00000002
#define HSA_MEM_FLAGS_RESERVED                  0xfffffffc

/* Cache types in cache properties */
#define HSA_CACHE_TYPE_DATA             0x00000001
#define HSA_CACHE_TYPE_INSTRUCTION      0x00000002
#define HSA_CACHE_TYPE_CPU              0x00000004
#define HSA_CACHE_TYPE_HSACU            0x00000008
#define HSA_CACHE_TYPE_RESERVED         0xfffffff0

/* Link types in IO link properties (matches CRAT link types) */
#define HSA_IOLINK_TYPE_UNDEFINED       0
#define HSA_IOLINK_TYPE_HYPERTRANSPORT  1
#define HSA_IOLINK_TYPE_PCIEXPRESS      2
#define HSA_IOLINK_TYPE_AMBA            3
#define HSA_IOLINK_TYPE_MIPI            4
#define HSA_IOLINK_TYPE_QPI_1_1 5
#define HSA_IOLINK_TYPE_RESERVED1       6
#define HSA_IOLINK_TYPE_RESERVED2       7
#define HSA_IOLINK_TYPE_RAPID_IO        8
#define HSA_IOLINK_TYPE_INFINIBAND      9
#define HSA_IOLINK_TYPE_RESERVED3       10
#define HSA_IOLINK_TYPE_XGMI            11
#define HSA_IOLINK_TYPE_XGOP            12
#define HSA_IOLINK_TYPE_GZ              13
#define HSA_IOLINK_TYPE_ETHERNET_RDMA   14
#define HSA_IOLINK_TYPE_RDMA_OTHER      15
#define HSA_IOLINK_TYPE_OTHER           16

/* Flag bits in IO link properties (matches CRAT flags, excluding the
 * bi-directional flag, which is not offially part of the CRAT spec, and
 * only used internally in KFD)
 */
#define HSA_IOLINK_FLAGS_ENABLED                (1 << 0)
#define HSA_IOLINK_FLAGS_NON_COHERENT           (1 << 1)
#define HSA_IOLINK_FLAGS_NO_ATOMICS_32_BIT      (1 << 2)
#define HSA_IOLINK_FLAGS_NO_ATOMICS_64_BIT      (1 << 3)
#define HSA_IOLINK_FLAGS_NO_PEER_TO_PEER_DMA    (1 << 4)
#define HSA_IOLINK_FLAGS_RESERVED               0xffffffe0

#endif