drm/amdkfd: Add sysfs bitfields and enums to uAPI

These bits are de-facto part of the uAPI, so declare them in a uAPI header.

The corresponding bit-fields and enums in user mode are defined in
https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/blob/master/include/hsakmttypes.h

HSA_CAP_...           -> HSA_CAPABILITY
HSA_MEM_HEAP_TYPE_... -> HSA_HEAPTYPE
HSA_MEM_FLAGS_...     -> HSA_MEMORYPROPERTY
HSA_CACHE_TYPE_...    -> HsaCacheType
HSA_IOLINK_TYPE_...   -> HSA_IOLINKTYPE
HSA_IOLINK_FLAGS_...  -> HSA_LINKPROPERTY

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Jonathan Kim <jonathan.kim@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 108 insertions, 0 deletions

diff --git a/include/uapi/linux/kfd_sysfs.h b/include/uapi/linux/kfd_sysfs.h
new file mode 100644
index 000000000000..e1fb78b4bf09
--- /dev/null
+++ b/include/uapi/linux/kfd_sysfs.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT WITH Linux-syscall-note */
+/*
+ * 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
+
+/* 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_RESERVED			0xe00f8000
+
+/* 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