Extend current kernel config requirements of amdgpu by adding
config HSA_AMD_P2P. Enabling HSA_AMD_P2P is REQUIRED to support
peer-to-peer communication, in both data and control planes, among
AMD GPU devices that are connected via PCIe and have large BAR vBIOS
Signed-off-by: Ramesh Errabolu <ramesh.errab...@amd.com>
---
drivers/gpu/drm/amd/amdkfd/Kconfig | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdkfd/Kconfig
b/drivers/gpu/drm/amd/amdkfd/Kconfig
index 8cc0a76ddf9f..26614f5f20ea 100644
--- a/drivers/gpu/drm/amd/amdkfd/Kconfig
+++ b/drivers/gpu/drm/amd/amdkfd/Kconfig
@@ -25,3 +25,11 @@ config HSA_AMD_SVM
preemptions and one based on page faults. To enable page fault
based memory management on most GFXv9 GPUs, set the module
parameter amdgpu.noretry=0.
+
+config HSA_AMD_P2P
+ bool "HSA kernel driver support for peer-to-peer for AMD GPU devices"
+ depends on HSA_AMD && PCI_P2PDMA && DMABUF_MOVE_NOTIFY
+ help
+ Enable this if you want to access AMD GPU peer devices, in both data
+ and control planes, that are connected via PCIe and have large BAR
vBIOS
+
--
2.35.1
