From 552825b28ddac200b6080d9e79f4121b68e1517d Mon Sep 17 00:00:00 2001
From: Chunming Zhou <david1.zhou@amd.com>
Date: Mon, 2 Apr 2018 11:20:44 +0800
Subject: drm/amdgpu: add new bo flag that indicates BOs don't need fallback
(v2)
user cases:
1. KFD wraps amdgpu_bo_create, they have no fallback case which is different
with amdgpu_gem_object_create.
since upstream branch has no amdgpu_amdkfd_gpuvm.c, which need KFD
guys add this flag to __alloc_memory_of_gpu:
+ flags |= AMDGPU_GEM_CREATE_NO_FALLBACK;
2. UMD can specify this flag for their allocation as well if they like.
v2: squash in merge conflict fix (Chunming)
Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: felix.kuehling@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
(limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 04d6830347ec..9e23d6f6f3f3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -388,6 +388,8 @@ retry:
drm_gem_private_object_init(adev->ddev, &bo->gem_base, size);
INIT_LIST_HEAD(&bo->shadow_list);
INIT_LIST_HEAD(&bo->va);
+ bo->preferred_domains = preferred_domains;
+ bo->allowed_domains = allowed_domains;
bo->flags = flags;
@@ -424,7 +426,8 @@ retry:
r = ttm_bo_init_reserved(&adev->mman.bdev, &bo->tbo, size, type,
&bo->placement, page_align, &ctx, acc_size,
NULL, resv, &amdgpu_ttm_bo_destroy);
- if (unlikely(r && r != -ERESTARTSYS) && type == ttm_bo_type_device) {
+ if (unlikely(r && r != -ERESTARTSYS) && type == ttm_bo_type_device &&
+ !(flags & AMDGPU_GEM_CREATE_NO_FALLBACK)) {
if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) {
flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
goto retry;
--
cgit