Commit 006a0b3d authored Jun 18, 2018 by Shaoyun Liu Committed by Alex Deucher Sep 27, 2018

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>

parent d30e63b1

drivers/gpu/drm/amd/amdkfd/kfd_device.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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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