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IH tracks pending retry faults in a hash table for fast lookup in
interrupt context. Each VM has a short FIFO of pending VM faults for
processing in a bottom half.
The IH prescreening stage adds retry faults and filters out repeated
retry interrupts to minimize the impact of interrupt storms.
It's the VM's responsibility remove pending faults once they are
handled. For now this is only done when the VM is destroyed.
v2:
- Made the hash table smaller and the FIFO longer. I never want the
FIFO to fill up, because that would make prescreen take longer.
128 pending page faults should be enough to keep migrations busy.
Signed-off-by: Felix Kuehling <[email protected]>
Acked-by: Christian König <[email protected]> (v1)
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Fill in the core VCN 1.0 setup functionality.
v2: squash in fixup (Alex)
Signed-off-by: Leo Liu <[email protected]>
Acked-by: Chunming Zhou <[email protected]>
Acked-by: Hawking Zhang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Reflect the new format on soc-15 asics.
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Signed-off-by: ken <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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The contextID field (formerly known as src_data) of the IH
vector stores client specific information about an interrupt.
It was expanded from 32 bits to 128 on newer asics. Expand the
src_id field to handle this.
Reviewed-by: Harry Wentland <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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Newer asics have a two levels of irq ids now:
client id - the IP
src id - the interrupt src within the IP
v2: integrated Christian's comments.
v3: fix rebase fail in SI and CIK
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Ken Wang <[email protected]>
Reviewed-by: Ken Wang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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This implements the irq src registrar.
Reviewed-by: Jammy Zhou <[email protected]>
Signed-off-by: Chunming Zhou <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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This adds the non-asic specific core driver code.
v2: remove extra kconfig option
v3: implement minor fixes from Fengguang Wu
v4: fix cast in amdgpu_ucode.c
Acked-by: Christian König <[email protected]>
Acked-by: Jammy Zhou <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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