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From 948f95763f9a332aed04302d31147fe573fd4564 Mon Sep 17 00:00:00 2001
From: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Date: Mon, 27 Jun 2016 15:30:45 -0400
Subject: [PATCH 1191/4131] drm/amdgpu: Modify create_process_vm interface
Modify create_process_vm to accommodate master VM. KFD process chooses
the VM of the first device detected to be the master VM. This
information is passed on to KGD via create_process_interface.
Change-Id: I8b5fd102f1f598673af0c936b718b1d7d8d235a3
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 ++
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 5 ++++-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index cabf0fe..887d6c3 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -669,6 +669,8 @@ struct kfd_process {
size_t debug_event_count;
struct rb_root bo_interval_tree;
+
+ void *master_vm;
};
/**
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index c98b5da..87dd412 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -733,12 +733,15 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev,
idr_init(&pdd->alloc_idr);
/* Create the GPUVM context for this specific device */
- if (dev->kfd2kgd->create_process_vm(dev->kgd, &pdd->vm)) {
+ if (dev->kfd2kgd->create_process_vm(dev->kgd, &pdd->vm,
+ p->master_vm)) {
pr_err("Failed to create process VM object\n");
list_del(&pdd->per_device_list);
kfree(pdd);
pdd = NULL;
}
+ if (p->master_vm == NULL)
+ p->master_vm = pdd->vm;
}
return pdd;
--
2.7.4
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