kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c, branch linux-rolling-stableHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-rolling-stable2025-11-14T16:27:29Zdrm/amdgpu: Refactor sriov xgmi topology filling to common code2025-11-14T16:27:29ZWill Aitkenwiaitken@amd.com2025-09-30T16:24:07Zurn:sha1:f1a2cd427d0401c1888c04613fb18d272825a5c2
amdgpu_xgmi_fill_topology_info and psp_xgmi_reflect_topology_info
perform the same logic of copying topology info of one node to every
other node in the hive. Instead of having two functions that purport to
do the same thing, this refactoring moves the logic of the fill function
to the reflect function and adds reflecting port number info as well for
complete functionality.
Signed-off-by: Will Aitken <wiaitken@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Avoid xgmi register access2025-11-14T16:26:58ZLijo Lazarlijo.lazar@amd.com2025-11-06T08:19:59Zurn:sha1:43d08222adf70f6b3ff6ded8dd8e8e4ed3ceff05
On single GPU systems, avoid accesses to XGMI link registers.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Check if AID is active before access2025-11-12T02:54:18ZLijo Lazarlijo.lazar@amd.com2025-11-06T13:14:29Zurn:sha1:baf75a087c41eeb03c471099dc5d77e3b068c33b
Access XGMI registers only if AID is active.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Add xgmi API to set max speed/width2025-06-18T16:19:21ZLijo Lazarlijo.lazar@amd.com2025-06-13T12:31:29Zurn:sha1:9750ad5aee4cf24b03dbd3baf475a0840bc0bcea
Add an API to set the max possible xgmi speed/width.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Deprecate xgmi_link_speed enum2025-06-18T16:19:21ZLijo Lazarlijo.lazar@amd.com2025-06-13T07:03:20Zurn:sha1:8c9eb6ce5021adab44b4a365f2ba9bbbfd65f5b5
xgmi doesn't have discrete max speeds defined. Speed numbers can be
arbitrary based on SOC. Deprecate the enum.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/pm: Use external link order for xgmi data2025-05-22T16:02:04ZLijo Lazarlijo.lazar@amd.com2025-05-16T14:46:57Zurn:sha1:74956242a0dfe4ef7fef0f9a4e8f7ea7415be97b
xgmi_port_num interface reports external link number for port number. To
be consistent, use the external link number for reporting other XGMI
link data also.
v2: For invalid link number return -EINVAL (Kevin)
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Yang Wang <kevinyang.wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Fix query order of XGMI v6.4.1 status2025-04-30T22:13:44ZLijo Lazarlijo.lazar@amd.com2025-04-25T07:01:19Zurn:sha1:3805e6959ced4c0735a4ae53f0c56324c87c72b2
Keep the register offsets as per link order for querying XGMI v6.4.1
link status.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Mangesh Gadre <Mangesh.Gadre@amd.com>
Fixes: 6dee64e765c4 ("drm/amdgpu: Fix xgmi v6.4.1 link status reporting")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Fix xgmi v6.4.1 link status reporting2025-04-07T19:18:59ZLijo Lazarlijo.lazar@amd.com2025-03-27T04:04:15Zurn:sha1:6dee64e765c4c80d128817f519292e249f53a769
Use the right register offsets for getting link status.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Parse all deferred errors with UMC aca handle2025-03-26T21:44:41ZXiang Liuxiang.liu@amd.com2025-03-24T09:19:54Zurn:sha1:aedc92be9621b31ccc90d79ee7f831944e6bfbef
We should only increase the deferred errors in UMC block.
Signed-off-by: Xiang Liu <xiang.liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Calculate IP specific xgmi bandwidth2025-03-14T03:11:46ZLijo Lazarlijo.lazar@amd.com2025-02-06T12:10:42Zurn:sha1:357506799bacb21ba1ed7d64e02ac9c4a1f45b31
Use IP version specific xgmi speed/width for bandwidth calculation.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Jonathan Kim <jonathan.kim@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>