[PATCH libdrm 1/2] amdgpu: Add wrappers for AMDGPU_VM IOCTL.

[Andrey Grodzovsky]

Change-Id: I7eafb85c1ca96d6d255f0183bed0ce4129746fe0
Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky at amd.com>
---
 amdgpu/Makefile.sources |  1 +
 amdgpu/amdgpu.h         | 20 +++++++++++++++++++
 amdgpu/amdgpu_vm.c      | 52 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 73 insertions(+)
 create mode 100644 amdgpu/amdgpu_vm.c

diff --git a/amdgpu/Makefile.sources b/amdgpu/Makefile.sources
index bc3abaa..498b64c 100644
--- a/amdgpu/Makefile.sources
+++ b/amdgpu/Makefile.sources
@@ -6,6 +6,7 @@ LIBDRM_AMDGPU_FILES := \
 	amdgpu_gpu_info.c \
 	amdgpu_internal.h \
 	amdgpu_vamgr.c \
+	amdgpu_vm.c \
 	util_hash.c \
 	util_hash.h \
 	util_hash_table.c \
diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
index ecc975f..07f2851 100644
--- a/amdgpu/amdgpu.h
+++ b/amdgpu/amdgpu.h
@@ -1489,6 +1489,26 @@ void amdgpu_cs_chunk_fence_to_dep(struct amdgpu_cs_fence *fence,
 void amdgpu_cs_chunk_fence_info_to_data(struct amdgpu_cs_fence_info *fence_info,
 					struct drm_amdgpu_cs_chunk_data *data);
 
+/**
+ * Reserve VMID
+ * \param   context - \c [in]  GPU Context
+ * \param   flags - \c [in]  TBD
+ *
+ * \return  0 on success otherwise POSIX Error code
+*/
+int amdgpu_vm_alloc_reserved_vmid(amdgpu_context_handle context,
+								  uint32_t	flags);
+
+/**
+ * Free reserved VMID
+ * \param   context - \c [in]  GPU Context
+ * \param   flags - \c [in]  TBD
+ *
+ * \return  0 on success otherwise POSIX Error code
+*/
+int amdgpu_vm_free_reserved_vmid(amdgpu_context_handle context,
+								 uint32_t	flags);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/amdgpu/amdgpu_vm.c b/amdgpu/amdgpu_vm.c
new file mode 100644
index 0000000..1664b7b
--- /dev/null
+++ b/amdgpu/amdgpu_vm.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2017 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.
+ *
+ */
+
+
+#include "amdgpu.h"
+#include "amdgpu_drm.h"
+#include "xf86drm.h"
+#include "amdgpu_internal.h"
+
+int amdgpu_vm_alloc_reserved_vmid(amdgpu_context_handle context,
+								  uint32_t	flags)
+{
+	union drm_amdgpu_vm vm;
+
+	vm.in.op = AMDGPU_VM_OP_RESERVE_VMID;
+	vm.in.flags = flags;
+
+	return drmCommandWriteRead(context->dev->fd, DRM_AMDGPU_VM,
+							   &vm, sizeof(vm));
+}
+
+int amdgpu_vm_free_reserved_vmid(amdgpu_context_handle context,
+								 uint32_t	flags)
+{
+	union drm_amdgpu_vm vm;
+
+	vm.in.op = AMDGPU_VM_OP_UNRESERVE_VMID;
+	vm.in.flags = flags;
+
+	return drmCommandWriteRead(context->dev->fd, DRM_AMDGPU_VM,
+							   &vm, sizeof(vm));
+}
-- 
2.7.4