kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c, branch v6.10.7

drm/amdgpu: Add lock around VF RLCG interface

2024-08-14T13:34:14+00:00

[ Upstream commit e864180ee49b4d30e640fd1e1d852b86411420c9 ] flush_gpu_tlb may be called from another thread while device_gpu_recover is running. Both of these threads access registers through the VF RLCG interface during VF Full Access. Add a lock around this interface to prevent race conditions between these threads. Signed-off-by: Victor Skvortsov Reviewed-by: Zhigang Luo Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

amd/amdgpu: improve VF recover time

2024-04-10T02:14:30+00:00

1. change AMDGPU_VF2PF_UPDATE_MAX_RETRY_LIMIT from 30 to 5. 2. set fatel error detected flag. Signed-off-by: Zhigang Luo Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amd/amdgpu: support MES command SET_HW_RESOURCE1 in sriov

2024-04-10T02:08:53+00:00

support MES command SET_HW_RESOURCE1 in sriov Signed-off-by: chongli2 Reviewed-by: Jingwen Chen Acked-by: Jingwen Chen Signed-off-by: Alex Deucher

drm/amdgpu: use vm_update_mode=0 as default in sriov for gfx10.3 onwards

2024-04-10T02:02:37+00:00

Apply this rule to all newer asics in sriov case. For asic with VF MMIO access protection avoid using CPU for VM table updates. CPU pagetable updates have issues with HDP flush as VF MMIO access protection blocks write to BIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL register during sriov runtime. Moved the check to amdgpu_device_init() to ensure it is done after amdgpu_device_ip_early_init() where the IP versions are discovered. Signed-off-by: Danijel Slivka Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: trigger flr_work if reading pf2vf data failed

2024-03-20T17:38:13+00:00

if reading pf2vf data failed 30 times continuously, it means something is wrong. Need to trigger flr_work to recover the issue. also use dev_err to print the error message to get which device has issue and add warning message if waiting IDH_FLR_NOTIFICATION_CMPL timeout. Signed-off-by: Zhigang Luo Acked-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: Improve error checking in amdgpu_virt_rlcg_reg_rw (v2)

2024-02-22T15:27:23+00:00

The current error detection only looks for a timeout. This should be changed to also check scratch_reg1 for any errors returned from RLCG. v2: remove new error value Signed-off-by: Victor Lu Acked-by: Alex Deucher Signed-off-by: Alex Deucher

amdgpu/drm: Use vram manager for virtualization page retirement

2024-01-25T19:58:03+00:00

In runtime, use vram manager for virtualization page retirement. Signed-off-by: Victor Skvortsov Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: move kiq_reg_write_reg_wait() out of amdgpu_virt.c

2024-01-15T23:35:36+00:00

It's used for more than just SR-IOV now, so move it to amdgpu_gmc.c and rename it to better match the functionality and update the comments in the code paths to better document when each path is used and why. No functional change. Reviewed-by: Shaoyun.liu Acked-by: Christian König Signed-off-by: Alex Deucher Cc: Shaoyun.Liu@amd.com Cc: Christian.Koenig@amd.com

drm/amdgpu: Use the right method to get IP version

2023-12-13T20:09:53+00:00

Replace direct usage of adev->ip_versions with amdgpu_ip_version. Signed-off-by: Lijo Lazar Reviewed-by: Hawking Zhang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Use correct KIQ MEC engine for gfx9.4.3 (v5)

2023-11-09T22:03:07+00:00

amdgpu_kiq_wreg/rreg is hardcoded to use MEC engine 0. Add an xcc_id parameter to amdgpu_kiq_wreg/rreg, define W/RREG32_XCC and amdgpu_device_xcc_wreg/rreg to use the new xcc_id parameter. Using amdgpu_sriov_runtime to determine whether to access via kiq or RLC is sufficient for now. v5: add condition in amdgpu_device_xcc_w/rreg, remove trace func call v4: avoid using amdgpu_sriov_w/rreg v3: use W/RREG32_XCC to handle non-kiq case v2: define amdgpu_device_xcc_wreg/rreg instead of changing parameters of amdgpu_device_wreg/rreg Signed-off-by: Victor Lu Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher