kernel/linux.git/drivers/gpu/drm/amd/amdgpu/tonga_ih.c, branch v5.10.263

drm/amdgpu: Add check to prevent IH overflow

2021-03-07T11:34:11+00:00

[ Upstream commit e4180c4253f3f2da09047f5139959227f5cf1173 ] 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 Signed-off-by: Sasha Levin

drm/amd: drop use of drmP.h in remaining files

2019-06-10T21:04:34+00:00

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

2019-01-14T20:04:47+00:00

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

2019-01-14T20:04:47+00:00

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

2018-12-07T23:14:26+00:00

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

2018-12-07T23:14:20+00:00

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: Use asic specific doorbell index instead of macro definition

2018-11-28T20:55:33+00:00

ASIC specific doorbell layout is used instead of enum definition Signed-off-by: Oak Zeng Suggested-by: Felix Kuehling Suggested-by: Alex Deucher Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: move more defines into amdgpu_irq.h

2018-09-27T02:09:22+00:00

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

drm/amdgpu: cleanup amdgpu_ih.c

2018-09-27T02:09:21+00:00

Cleanup amdgpu_ih.c to be able to handle multiple interrupt rings. Signed-off-by: Christian König Reviewed-by: Huang Rui Signed-off-by: Alex Deucher

drm/amdgpu: make function pointers mandatory

2018-09-27T02:09:21+00:00

We always want those to be setup correctly. Signed-off-by: Christian König Reviewed-by: Huang Rui Signed-off-by: Alex Deucher