linux/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c, branch v5.14

Merge drm/drm-next into drm-misc-next

2021-05-22T05:17:05Z

Backmerging from drm/drm-next to the patches for AMD devices for v5.14. Signed-off-by: Thomas Zimmermann

drm/amdgpu: Handle IOMMU enabled case.

2021-05-20T03:50:27Z

Problem: Handle all DMA IOMMU group related dependencies before the group is removed. Those manifest themself in that when IOMMU enabled DMA map/unmap is dependent on the presence of IOMMU group the device belongs to but, this group is released once the device is removed from PCI topology. Fix: Expedite all such unmap operations to pci remove driver callback. v5: Drop IOMMU notifier and switch to lockless call to ttm_tt_unpopulate v6: Drop the BO unamp list v7: Drop amdgpu_gart_fini In amdgpu_ih_ring_fini do uncinditional check (!ih->ring) to avoid freeing uniniitalized rings. Call amdgpu_ih_ring_fini unconditionally. v8: Add deatiled explanation Signed-off-by: Andrey Grodzovsky Reviewed-by: Felix Kuehling Link: https://patchwork.freedesktop.org/patch/msgid/20210517143851.475058-1-andrey.grodzovsky@amd.com

drm/amdgpu: return IH ring drain finished if ring is empty

2021-04-29T03:36:05Z

Sometimes IH do not setup ring wptr overflow flag after wptr exceed rptr. As a workaround, if IH rptr equals to wptr, ring is empty, return true to indicate IH ring checkpoint is processed, IH ring drain is finished. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: nuke the ih reentrant lock

2021-03-24T03:30:23Z

Interrupts on are non-reentrant on linux. This is just an ancient leftover from radeon where irq processing was kicked of from different places. Signed-off-by: Christian König Reviewed-by: Daniel Vetter Signed-off-by: Alex Deucher

drm/amdgpu: add ih waiter on process until checkpoint

2021-03-24T03:10:57Z

Add IH function to allow caller to wait until ring entries are processed until the checkpoint write pointer. This will be primarily used by HMM to drain pending page fault interrupts before memory unmap to prevent HMM from handling stale interrupts. Suggested-by: Christian König Signed-off-by: Jonathan Kim Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amd/amdgpu/amdgpu_ih: Update 'amdgpu_ih_decode_iv_helper()'s function header

2021-01-11T21:09:12Z

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c:220: warning: Function parameter or member 'ih' not described in 'amdgpu_ih_decode_iv_helper' drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c:220: warning: Function parameter or member 'entry' not described in 'amdgpu_ih_decode_iv_helper' Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Daniel Vetter Cc: Felix Kuehling Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

drm/amdgpu: add a helper function to decode iv

2020-12-23T20:05:07Z

since from soc15, all the chips share the same iv format. create a common helper to decode iv Signed-off-by: Hawking Zhang Acked-by: Christian König Acked-by: Felix Kuehling Reviewed-by: Dennis Li Reviewed-by: Feifei Xu Signed-off-by: Alex Deucher

drm/amdgpu: add infrastructure for soft IH ring

2020-11-24T17:06:38Z

Add a soft IH ring implementation similar to the hardware IH1/2. This can be used if the hardware delegation of interrupts to IH1/2 doesn't work for some reason. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: remove not needed memset

2019-11-19T15:12:54Z

Fixes coccicheck warning: drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c:64:13-31: WARNING: dma_alloc_coherent use in ih -> ring already zeroes out memory, so memset is not needed Reported-by: Hulk Robot Signed-off-by: zhengbin Signed-off-by: Alex Deucher

drm/amd: drop use of drmP.h in amdgpu/amdgpu*

2019-06-10T21:02:48Z

Drop use of drmP.h in all files named amdgpu* in drm/amd/amdgpu/ Fix fallout. Signed-off-by: Sam Ravnborg Reviewed-by: Alex Deucher Cc: "Christian König" Cc: "David (ChunMing) Zhou" Cc: David Airlie Cc: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20190609220757.10862-10-sam@ravnborg.org