diff options
| author | Ville Syrjälä <[email protected]> | 2018-06-11 23:02:57 +0300 |
|---|---|---|
| committer | Ville Syrjälä <[email protected]> | 2018-07-04 23:03:30 +0300 |
| commit | 78c357dd3fcf51de61a0b8db3abdb8ed5aea6dd8 (patch) | |
| tree | 3be7b5dd4204b1f571b3c2d4862cc63657034ed7 /include/linux/fpga/fpga-bridge.h | |
| parent | 0ba7c51a6fd80a89236f6ceb52e63f8a7f62bfd3 (diff) | |
drm/i915: Fix pre-ILK error interrupt ack
Adjust the EIR clearing to cope with the edge triggered IIR
on i965/g4x. To guarantee an edge in the ISR master error bit
we temporarily mask everything in EMR. As some of the EIR bits
can't even be directly cleared we also borrow a trick from
i915_clear_error_registers() and permanently mask any bit that
remains high. No real thought given to how we might unmask them
again once the cause for the error has been clered. I suppose
on pre-g4x GPU reset will reinitialize EMR from scratch.
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Imre Deak <[email protected]>
Diffstat (limited to 'include/linux/fpga/fpga-bridge.h')
0 files changed, 0 insertions, 0 deletions