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From 5373139da9ccdecada62d15ff90f6b10851f933c Mon Sep 17 00:00:00 2001
From: Chunming Zhou <david1.zhou@amd.com>
Date: Wed, 30 May 2018 11:12:08 +0800
Subject: [PATCH 4573/5725] drm/amdgpu: gds bo must not be per-vm-bo
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In per-vm-bo case, there could be no bo list.
But gds bo created from user space must be passed to bo list.
So adding a check to prevent to creat gds bo as per-vm-bo.
Change-Id: Idfa58c40447df0db2883413f9f7ccf56b47579f5
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 275c316..0e022b2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -269,6 +269,13 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data,
/* create a gem object to contain this object in */
if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS |
AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) {
+ if (flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID) {
+ /* if gds bo is created from user space, it must be
+ * passed to bo list
+ */
+ DRM_ERROR("GDS bo cannot be per-vm-bo\n");
+ return -EINVAL;
+ }
flags |= AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
if (args->in.domains == AMDGPU_GEM_DOMAIN_GDS)
size = size << AMDGPU_GDS_SHIFT;
--
2.7.4
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