linux/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c, branch v5.12

drm/amd/amdgpu: add error handling to amdgpu_virt_read_pf2vf_data

2021-01-25T22:46:48Z

[Why] when vram lost happened in guest, try to write vram can lead to kernel stuck. [How] When the readback data is invalid, don't do write work, directly reschedule a new work. Signed-off-by: Jingwen Chen Reviewed-by: Monk Liu Signed-off-by: Alex Deucher

drm/amd/amdgpu: remove redundant flush_delayed_work

2021-01-20T21:38:17Z

When using cancel_delayed_work_sync, there's no need to flush_delayed_work first. This sequence can lead to a redundant loop of work executing. Signed-off-by: Jingwen Chen Reviewed-by: Monk Liu Signed-off-by: Alex Deucher

drm/amdgpu/sriov Stop data exchange for wholegpu reset

2021-01-14T04:47:39Z

[Why] When host trigger a whole gpu reset, guest will keep waiting till host finish reset. But there's a work queue in guest exchanging data between vf&pf which need to access frame buffer. During whole gpu reset, frame buffer is not accessable, and this causes the call trace. [How] After vf get reset notification from pf, stop data exchange. Signed-off-by: Jingwen Chen Signed-off-by: Jack Zhang Reviewed-by: Monk Liu Signed-off-by: Alex Deucher

Merge tag 'amd-drm-next-5.11-2020-12-09' of git://people.freedesktop.org/~agd5f/linux into drm-next

2020-12-10T06:55:53Z

amd-drm-next-5.11-2020-12-09: amdgpu: - SR-IOV fixes - Navy Flounder updates - Sienna Cichlid updates - Dimgrey Cavefish updates - Vangogh updates - Misc SMU fixes - Misc display fixes - Last big hunk of W=1 warning fixes - Cursor validation fixes - CI BACO updates From: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20201210045344.21566-1-alexander.deucher@amd.com Signed-off-by: Dave Airlie

drm/amd/amdgpu/amdgpu_virt: Correct possible copy/paste or doc-rot misnaming issue

2020-11-24T17:09:52Z

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:115: warning: Function parameter or member 'adev' not described in 'amdgpu_virt_request_full_gpu' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:115: warning: Excess function parameter 'amdgpu' description in 'amdgpu_virt_request_full_gpu' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:138: warning: Function parameter or member 'adev' not described in 'amdgpu_virt_release_full_gpu' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:138: warning: Excess function parameter 'amdgpu' description in 'amdgpu_virt_release_full_gpu' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:159: warning: Function parameter or member 'adev' not described in 'amdgpu_virt_reset_gpu' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:159: warning: Excess function parameter 'amdgpu' description in 'amdgpu_virt_reset_gpu' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:194: warning: Function parameter or member 'adev' not described in 'amdgpu_virt_wait_reset' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:194: warning: Excess function parameter 'amdgpu' description in 'amdgpu_virt_wait_reset' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:210: warning: Function parameter or member 'adev' not described in 'amdgpu_virt_alloc_mm_table' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:210: warning: Excess function parameter 'amdgpu' description in 'amdgpu_virt_alloc_mm_table' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:239: warning: Function parameter or member 'adev' not described in 'amdgpu_virt_free_mm_table' drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:239: warning: Excess function parameter 'amdgpu' description in 'amdgpu_virt_free_mm_table' Acked-by: Christian König Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

amd/amdgpu: use kmalloc_array to replace kmalloc with multiply

2020-11-24T17:04:39Z

Fix check_patch.pl warning: WARNING: Prefer kmalloc_array over kmalloc with multiply +bps = kmalloc(align_space * sizeof((*data)->bps), GFP_KERNEL); WARNING: Prefer kmalloc_array over kmalloc with multiply +bps_bo = kmalloc(align_space * sizeof((*data)->bps_bo), GFP_KERNEL); kmalloc_array has multiply overflow check, which will be safer. Reviewed-by: Christian König Signed-off-by: Bernard Zhao Signed-off-by: Alex Deucher

drm/amd/amdgpu/amdgpu_virt: Make local function 'amdgpu_virt_update_vf2pf_work_item()' static

2020-11-13T22:29:46Z

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:560:6: warning: no previous prototype for ‘amdgpu_virt_update_vf2pf_work_item’ [-Wmissing-prototypes] Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

drm/amdgpu/virt: fix handling of the atomic flag

2020-11-06T09:31:26Z

Use the per device drm driver feature flags rather than the global one. This way we can make the drm driver struct const. Signed-off-by: Alex Deucher Reviewed-by: Luben Tuikov Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20201104100425.1922351-3-daniel.vetter@ffwll.ch

drm/amdgpu: Implement new guest side VF2PF message transaction (v2)

2020-09-25T21:03:22Z

- Refactor the driver code to use amdgpu_virt_read_pf2vf_data and amdgpu_virt_write_vf2pf_data instead of writing all code in one function (which is the old amdgpu_virt_init_data_exchange) - Adding a new transaction method for VF2PF message between host and guest driver. Guest side will periodically update VF2PF message in the framebuffer. In the new header, we include guest ucode information, guest framebuffer usage, and engine usage - Clean up the old macros since they will cause compile error if the new transaction method is used v2: squash in build fix Signed-off-by: Bokun Zhang Reviewed-by: Monk Liu Signed-off-by: Alex Deucher

drm/amdgpu: Get DRM dev from adev by inline-f

2020-08-24T17:06:06Z

Add a static inline adev_to_drm() to obtain the DRM device pointer from an amdgpu_device pointer. Signed-off-by: Luben Tuikov Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher