[PATCH] drm/amdkfd: Remove the requirement for atomic Ops on vg20

[Kent Russell]

From: Shaoyun Liu <Shaoyun.Liu at amd.com>

Firmware have the workaround to replace the atomic Ops with read-modify-write on CP side.
User should not expect atomic Ops on system memory works normally if system didn't not
support it.

Change-Id: I89395b099fe0931b9b3627651b512dde3149fadd
Signed-off-by: Shaoyun Liu <Shaoyun.Liu at amd.com>
Signed-off-by: Kent Russell <kent.russell at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index b0c2afb..b505bf3 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -263,7 +263,7 @@ static const struct kfd_device_info vega20_device_info = {
 	.mqd_size_aligned = MQD_SIZE_ALIGNED,
 	.supports_cwsr = true,
 	.needs_iommu_device = false,
-	.needs_pci_atomics = true,
+	.needs_pci_atomics = false,
 	.num_sdma_engines = 2,
 	.num_sdma_queues_per_engine = 8,
 };
-- 
2.7.4