From 006a0b3d86e7cee0e38d0543c7a6e5dbbf12025e Mon Sep 17 00:00:00 2001
From: Shaoyun Liu <Shaoyun.Liu@amd.com>
Date: Mon, 18 Jun 2018 14:47:21 -0400
Subject: [PATCH] drm/amdkfd: Remove the requirement for atomic Ops on vg20
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.
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-By: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@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 cb96bdfc8f3e9..a9f18ea7e3543 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -247,7 +247,7 @@ 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,
};
--
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