Acked-by: Alex Deucher <alexander.deuc...@amd.com>
________________________________
From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> on behalf of Kent Russell
<kent.russ...@amd.com>
Sent: Wednesday, September 26, 2018 9:41:52 AM
To: amd-gfx@lists.freedesktop.org
Cc: Russell, Kent; Liu, Shaoyun
Subject: [PATCH] drm/amdkfd: Remove the requirement for atomic Ops on vg20
From: Shaoyun Liu <shaoyun....@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....@amd.com>
Signed-off-by: Kent Russell <kent.russ...@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
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