linux-toradex.git/include/uapi/linux/kfd_ioctl.h, branch v6.14-rc6 Linux kernel for Apalis and Colibri modules Revert "drm/amdkfd: SMI report dropped event count" 2024-10-22T21:51:20+00:00 Alex Deucher alexander.deucher@amd.com 2024-10-21T17:41:13+00:00 97ddae76ddd20ea35d2059086aacd85b707a09c5 This reverts commit a3ab2d45b9887ee609cd3bea39f668236935774c. The userspace side for this code is not ready yet so revert for now. Reviewed-by: Philip Yang <Philip.Yang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Philip Yang <Philip.Yang@amd.com> 
This reverts commit a3ab2d45b9887ee609cd3bea39f668236935774c.

The userspace side for this code is not ready yet so revert
for now.

Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Philip Yang <Philip.Yang@amd.com>
drm/amdkfd: SMI report dropped event count 2024-10-07T18:32:23+00:00 Philip Yang Philip.Yang@amd.com 2024-07-30T19:33:23+00:00 a3ab2d45b9887ee609cd3bea39f668236935774c Add new SMI event to report the dropped event count. When the event kfifo is full, drop count is not zero, or no enough space left to store the event message, increase drop count. After reading event out from kfifo, if event was dropped, drop_count is not zero, generate a dropped event record and reset drop count to zero. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Add new SMI event to report the dropped event count.

When the event kfifo is full, drop count is not zero, or no enough space
left to store the event message, increase drop count.

After reading event out from kfifo, if event was dropped, drop_count is
not zero, generate a dropped event record and reset drop count to zero.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdkfd: Output migrate end event if migrate failed 2024-10-07T18:09:02+00:00 Philip Yang Philip.Yang@amd.com 2024-02-16T16:41:16+00:00 dad6c45cbd40b57db95c9d46e01ff6d302e86042 If page migration failed, also output migrate end event to match with migrate start event, with failure error_code added to the end of the migrate message macro. This will not break uAPI because application uses old message macro sscanf drop and ignore the error_code. Output GPU page fault restore end event if migration failed. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
If page migration failed, also output migrate end event to match with
migrate start event, with failure error_code added to the end of the
migrate message macro. This will not break uAPI because application uses
old message macro sscanf drop and ignore the error_code.

Output GPU page fault restore end event if migration failed.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdkfd: Document and define SVM events message macro 2024-09-06T21:55:05+00:00 Philip Yang Philip.Yang@amd.com 2024-02-16T16:00:10+00:00 663b0f1e141dc60ce6c09ae6afc5f213b22d13ca Document how to use SMI system management interface to enable and receive SVM events. Document SVM event triggers. Define SVM events message string format macro that could be used by user mode for sscanf to parse the event. Add it to uAPI header file to make it obvious that is changing uAPI in future. No functional changes. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Document how to use SMI system management interface to enable and
receive SVM events. Document SVM event triggers.

Define SVM events message string format macro that could be used by user
mode for sscanf to parse the event. Add it to uAPI header file to make
it obvious that is changing uAPI in future.

No functional changes.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdkfd: allow users to target recommended SDMA engines 2024-07-25T21:43:41+00:00 Jonathan Kim Jonathan.Kim@amd.com 2024-05-21T17:22:15+00:00 e06b71b2313a00579ba64a1cc43ad29d64cb8d4c Certain GPUs have better copy performance over xGMI on specific SDMA engines depending on the source and destination GPU. Allow users to create SDMA queues on these recommended engines. Close to 2x overall performance has been observed with this optimization. Signed-off-by: Jonathan Kim <jonathan.kim@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Certain GPUs have better copy performance over xGMI on specific
SDMA engines depending on the source and destination GPU.
Allow users to create SDMA queues on these recommended engines.
Close to 2x overall performance has been observed with this
optimization.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdkfd: enable single alu ops for gfx12 2024-05-02T20:18:13+00:00 Jonathan Kim jonathan.kim@amd.com 2023-08-21T15:47:47+00:00 9243240bed3859fba2d15c016902a4c73a186249 GFX12 debugging requires setting up precise ALU operation for catching ALU exceptions. Signed-off-by: Jonathan Kim <jonathan.kim@amd.com> Tested-by: Lancelot Six <lancelot.six@amd.com> Reviewed-by: Eric Huang <jinhuieric.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
GFX12 debugging requires setting up precise ALU operation for catching
ALU exceptions.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Tested-by: Lancelot Six <lancelot.six@amd.com>
Reviewed-by: Eric Huang <jinhuieric.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdkfd: Bump kfd version for contiguous VRAM allocation 2024-04-30T14:00:43+00:00 Philip Yang Philip.Yang@amd.com 2024-04-08T13:26:56+00:00 52666d8cc7f9c7810d25d5ef41f1a0b62153f368 Bump the kfd ioctl minor version to delcare the contiguous VRAM allocation flag support. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Bump the kfd ioctl minor version to delcare the contiguous VRAM
allocation flag support.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Support contiguous VRAM allocation 2024-04-30T13:44:46+00:00 Philip Yang Philip.Yang@amd.com 2024-04-05T19:46:50+00:00 155ce502e9adf9001d6fa35ca85843b7f0e538c7 RDMA device with limited scatter-gather ability requires contiguous VRAM buffer allocation for RDMA peer direct support. Add a new KFD alloc memory flag and store as bo alloc flag AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS. When pin this bo to export for RDMA peerdirect access, this will set TTM_PL_FLAG_CONTIFUOUS flag, and ask VRAM buddy allocator to get contiguous VRAM. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
RDMA device with limited scatter-gather ability requires contiguous VRAM
buffer allocation for RDMA peer direct support.

Add a new KFD alloc memory flag and store as bo alloc flag
AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS. When pin this bo to export for RDMA
peerdirect access, this will set TTM_PL_FLAG_CONTIFUOUS flag, and ask
VRAM buddy allocator to get contiguous VRAM.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdkfd: range check cp bad op exception interrupts 2024-03-27T12:53:02+00:00 Jonathan Kim Jonathan.Kim@amd.com 2024-03-01T17:25:17+00:00 0cac183b98d8a8c692c98e8dba37df15a9e9210d Due to a CP interrupt bug, bad packet garbage exception codes are raised. Do a range check so that the debugger and runtime do not receive garbage codes. Update the user api to guard exception code type checking as well. Signed-off-by: Jonathan Kim <jonathan.kim@amd.com> Tested-by: Jesse Zhang <jesse.zhang@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Due to a CP interrupt bug, bad packet garbage exception codes are raised.
Do a range check so that the debugger and runtime do not receive garbage
codes.
Update the user api to guard exception code type checking as well.

Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Tested-by: Jesse Zhang <jesse.zhang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdkfd: Bump KFD ioctl version 2024-01-15T23:35:35+00:00 Felix Kuehling felix.kuehling@amd.com 2024-01-03T23:13:39+00:00 4cabb2174d2c8c9672fcec95c49a8eb257142ea3 This is not strictly a change in the IOCTL API. This version bump is meant to indicate to user mode the presence of a number of changes and fixes that enable the management of VA mappings in compute VMs using the GEM_VA ioctl for DMABufs exported from KFD. Signed-off-by: Felix Kuehling <felix.kuehling@amd.com> Reviewed-by: Xiaogang Chen<Xiaogang.Chen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
This is not strictly a change in the IOCTL API. This version bump is meant
to indicate to user mode the presence of a number of changes and fixes
that enable the management of VA mappings in compute VMs using the GEM_VA
ioctl for DMABufs exported from KFD.

Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Xiaogang Chen<Xiaogang.Chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>