kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c, branch v6.6.134

drm/amdgpu: skip xcp drm device allocation when out of drm resource

2023-08-16T19:46:39+00:00

Return 0 when drm device alloc failed with -ENOSPC in order to allow amdgpu drive loading. But the xcp without drm device node assigned won't be visiable in user space. This helps amdgpu driver loading on system which has more than 64 nodes, the current limitation. The proposal to add more drm nodes is discussed in public, which will support up to 2^20 nodes totally. kernel drm: https://lore.kernel.org/lkml/20230724211428.3831636-1-michal.winiarski@intel.com/T/ libdrm: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/305 Signed-off-by: James Zhu Acked-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: use a macro to define no xcp partition case

2023-07-18T18:42:54+00:00

~0 as no xcp partition is used in several places, so improve its definition by a macro for code consistency. Suggested-by: Christian König Signed-off-by: Guchun Chen Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: share drm device for pci amdgpu device with 1st partition device

2023-06-30T17:12:15+00:00

To save render node resoure, share drm device setting for pci amdgpu device with 1st XCP partition device. Signed-off-by: James Zhu Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: Move calculation of xcp per memory node

2023-06-23T19:31:55+00:00

Its value is required for finding the memory id of xcp. Fixes: d26ea1b346e7 ("drm/amdgpu: Add xcp manager num_xcp_per_mem_partition") Signed-off-by: Lijo Lazar Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: use amdxcp platform device as spatial partition

2023-06-09T15:08:58+00:00

Use amdxcp platform device as spatial partition device. -v2: remove unused variable Signed-off-by: James Zhu Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: save/restore part of xcp drm_device fields

2023-06-09T15:07:12+00:00

Redirect xcp allocated drm_device::rdev/pdev/driver with amdgpu pci_device/drm_device setting. They need be saved before redirect and restored after unregister xcp drm_device. -v2: fix warning discarded-qualifiers Signed-off-by: James Zhu Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Fix warnings

2023-06-09T14:56:58+00:00

Fix warnings reported by kernel test bot/smatch smatch warnings: drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c:65 amdgpu_xcp_run_transition() error: buffer overflow 'xcp_mgr->xcp' 8 <= 8 Reported-by: kernel test robot Reported-by: Dan Carpenter Link: https://lore.kernel.org/r/202305231453.I0bXngYn-lkp@intel.com/ Signed-off-by: Lijo Lazar Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: Fix a couple of spelling mistakes in info and debug messages

2023-06-09T14:45:43+00:00

There are a couple of spelling mistakes, one in a dev_info message and the other in a dev_debug message. Fix them. Signed-off-by: Colin Ian King Signed-off-by: Alex Deucher

drm/amdgpu: route ioctls on primary node of XCPs to primary device

2023-06-09T14:36:53+00:00

During XCP init, unlike the primary device, there is no amdgpu_device attached to each XCP's drm_device In case that user trying to open/close the primary node of XCP drm_device this rerouting is to solve the NULL pointer issue causing by referring to any member of the amdgpu_device BUG: unable to handle page fault for address: 0000000000020c80 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page Oops: 0002 [#1] PREEMPT SMP NOPTI Call Trace: lock_timer_base+0x6b/0x90 try_to_del_timer_sync+0x2b/0x80 del_timer_sync+0x29/0x40 flush_delayed_work+0x1c/0x50 amdgpu_driver_open_kms+0x2c/0x280 [amdgpu] drm_file_alloc+0x1b3/0x260 [drm] drm_open+0xaa/0x280 [drm] drm_stub_open+0xa2/0x120 [drm] chrdev_open+0xa6/0x1c0 Signed-off-by: Shiwu Zhang Reviewed-by: Le Ma Signed-off-by: Alex Deucher

drm/amdgpu: Add memory partition id to amdgpu_vm

2023-06-09T13:59:56+00:00

If xcp_mgr is initialized, add mem_id to amdgpu_vm structure to store memory partition number when creating amdgpu_vm for the xcp. The xcp number is decided when opening the render device, for example /dev/dri/renderD129 is xcp_id 0, /dev/dri/renderD130 is xcp_id 1. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher