pm24.git/drivers/gpu/drm/amd/amdgpu/cz_ih.c, branch v6.4

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: Split amdgpu_device_fini into early and late

2021-05-20T03:45:49Z

Some of the stuff in amdgpu_device_fini such as HW interrupts disable and pending fences finilization must be done right away on pci_remove while most of the stuff which relates to finilizing and releasing driver data structures can be kept until drm_driver.release hook is called, i.e. when the last device reference is dropped. v4: Change functions prefix early->hw and late->sw Signed-off-by: Andrey Grodzovsky Acked-by: Christian König Reviewed-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20210512142648.666476-3-andrey.grodzovsky@amd.com

drm/amdgpu: Add check to prevent IH overflow

2021-01-05T20:05:16Z

Similar to commit ("drm/amdgpu: fix IH overflow on Vega10 v2"). When an ring buffer overflow happens the appropriate bit is set in the WPTR register which is also written back to memory. But clearing the bit in the WPTR doesn't trigger another memory writeback. So what can happen is that we end up processing the buffer overflow over and over again because the bit is never cleared. Resulting in a random system lockup because of an infinite loop in an interrupt handler. Reviewed-by: Christian König Signed-off-by: Defang Bo Signed-off-by: Alex Deucher

drm/amd/amdgpu/cz_ih: Add missing function param descriptions for 'ih' and 'entry'

2020-12-01T21:04:41Z

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/amd/amdgpu/cz_ih.c:191: warning: Function parameter or member 'ih' not described in 'cz_ih_get_wptr' drivers/gpu/drm/amd/amdgpu/cz_ih.c:223: warning: Function parameter or member 'ih' not described in 'cz_ih_decode_iv' drivers/gpu/drm/amd/amdgpu/cz_ih.c:223: warning: Function parameter or member 'entry' not described in 'cz_ih_decode_iv' drivers/gpu/drm/amd/amdgpu/cz_ih.c:253: warning: Function parameter or member 'ih' not described in 'cz_ih_set_rptr' 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/amd: drop use of drmP.h in remaining files

2019-06-10T21:04:34Z

With this commit drm/amd/ has no longer any uses of the deprecated drmP.h header file. 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/20190609220757.10862-11-sam@ravnborg.org

drm/amdgpu: simplify IH programming

2019-01-14T20:04:47Z

Calculate all the addresses and pointers in amdgpu_ih.c Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: add IH ring to ih_get_wptr/ih_set_rptr v2

2019-01-14T20:04:47Z

Let's start to support multiple rings. v2: decode IV is needed as well Signed-off-by: Christian König Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: move IV prescreening into the GMC code

2018-12-07T23:14:26Z

The GMC/VM subsystem is causing the faults, so move the handling here as well. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: remove VM fault_credit handling

2018-12-07T23:14:20Z

printk_ratelimit() is much better suited to limit the number of reported VM faults. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: move more defines into amdgpu_irq.h

2018-09-27T02:09:22Z

Everything that isn't related to the IH ring. Signed-off-by: Christian König Reviewed-by: Huang Rui Signed-off-by: Alex Deucher